From 23470d2f231941c7b6075f5f31a41c6e8cc00a36 Mon Sep 17 00:00:00 2001
From: Nick Downing <nick@ndcode.org>
Date: Tue, 11 Jan 2022 12:22:08 +1100
Subject: [PATCH] Upgrade bootstrap sources from v3.3.7 (modified) to v4.6.1
 (pristine)

---
 .gitignore                                    |    2 +
 css/bootstrap.css.less                        |   59 -
 css/bootstrap/_alert.scss                     |   52 +
 css/bootstrap/_badge.scss                     |   54 +
 css/bootstrap/_breadcrumb.scss                |   42 +
 css/bootstrap/_button-group.scss              |  163 ++
 css/bootstrap/_buttons.scss                   |  142 +
 css/bootstrap/_card.scss                      |  286 ++
 css/bootstrap/_carousel.scss                  |  200 ++
 css/bootstrap/_close.scss                     |   40 +
 css/bootstrap/_code.scss                      |   48 +
 css/bootstrap/_custom-forms.scss              |  526 ++++
 css/bootstrap/_dropdown.scss                  |  192 ++
 css/bootstrap/_forms.scss                     |  347 +++
 css/bootstrap/_functions.scss                 |  190 ++
 css/bootstrap/_grid.scss                      |   73 +
 css/bootstrap/_images.scss                    |   42 +
 css/bootstrap/_input-group.scss               |  211 ++
 css/bootstrap/_jumbotron.scss                 |   17 +
 css/bootstrap/_list-group.scss                |  154 ++
 css/bootstrap/_media.scss                     |    8 +
 css/bootstrap/_mixins.scss                    |   47 +
 css/bootstrap/_modal.scss                     |  240 ++
 css/bootstrap/_nav.scss                       |  120 +
 css/bootstrap/_navbar.scss                    |  332 +++
 css/bootstrap/_pagination.scss                |   74 +
 css/bootstrap/_popover.scss                   |  170 ++
 css/bootstrap/_print.scss                     |  132 +
 css/bootstrap/_progress.scss                  |   47 +
 css/bootstrap/_reboot.scss                    |  484 ++++
 css/bootstrap/_root.scss                      |   19 +
 css/bootstrap/_spinners.scss                  |   65 +
 css/bootstrap/_tables.scss                    |  185 ++
 css/bootstrap/_toasts.scss                    |   46 +
 css/bootstrap/_tooltip.scss                   |  115 +
 css/bootstrap/_transitions.scss               |   20 +
 css/bootstrap/_type.scss                      |  125 +
 css/bootstrap/_utilities.scss                 |   18 +
 css/bootstrap/_variables.scss                 | 1148 ++++++++
 css/bootstrap/alerts.less                     |   73 -
 css/bootstrap/badges.less                     |   66 -
 css/bootstrap/bootstrap-grid.css.scss         |   30 +
 css/bootstrap/bootstrap-reboot.css.scss       |   12 +
 css/bootstrap/bootstrap.css.scss              |   44 +
 css/bootstrap/breadcrumbs.less                |   26 -
 css/bootstrap/button-groups.less              |  244 --
 css/bootstrap/buttons.less                    |  166 --
 css/bootstrap/carousel.less                   |  270 --
 css/bootstrap/close.less                      |   34 -
 css/bootstrap/code.less                       |   69 -
 css/bootstrap/component-animations.less       |   33 -
 css/bootstrap/custom.less                     |   87 -
 css/bootstrap/dropdowns.less                  |  216 --
 css/bootstrap/forms.less                      |  613 -----
 css/bootstrap/glyphicons.less                 |  305 ---
 css/bootstrap/grid.less                       |   84 -
 css/bootstrap/input-groups.less               |  171 --
 css/bootstrap/jumbotron.less                  |   54 -
 css/bootstrap/labels.less                     |   64 -
 css/bootstrap/list-group.less                 |  130 -
 css/bootstrap/media.less                      |   66 -
 css/bootstrap/mixins.less                     |   40 -
 css/bootstrap/mixins/_alert.scss              |   13 +
 css/bootstrap/mixins/_background-variant.scss |   23 +
 css/bootstrap/mixins/_badge.scss              |   17 +
 css/bootstrap/mixins/_border-radius.scss      |   76 +
 css/bootstrap/mixins/_box-shadow.scss         |   20 +
 css/bootstrap/mixins/_breakpoints.scss        |  123 +
 css/bootstrap/mixins/_buttons.scss            |  110 +
 css/bootstrap/mixins/_caret.scss              |   62 +
 css/bootstrap/mixins/_clearfix.scss           |    7 +
 css/bootstrap/mixins/_deprecate.scss          |   10 +
 css/bootstrap/mixins/_float.scss              |   14 +
 css/bootstrap/mixins/_forms.scss              |  195 ++
 css/bootstrap/mixins/_gradients.scss          |   45 +
 css/bootstrap/mixins/_grid-framework.scss     |   80 +
 css/bootstrap/mixins/_grid.scss               |   69 +
 css/bootstrap/mixins/_hover.scss              |   37 +
 css/bootstrap/mixins/_image.scss              |   36 +
 css/bootstrap/mixins/_list-group.scss         |   21 +
 css/bootstrap/mixins/_lists.scss              |    7 +
 css/bootstrap/mixins/_nav-divider.scss        |   11 +
 css/bootstrap/mixins/_pagination.scss         |   22 +
 .../{reset-text.less => _reset-text.scss}     |   17 +-
 .../mixins/{resize.less => _resize.scss}      |    4 +-
 css/bootstrap/mixins/_screen-reader.scss      |   34 +
 css/bootstrap/mixins/_size.scss               |    7 +
 css/bootstrap/mixins/_table-row.scss          |   39 +
 css/bootstrap/mixins/_text-emphasis.scss      |   17 +
 css/bootstrap/mixins/_text-hide.scss          |   11 +
 ...text-overflow.less => _text-truncate.scss} |    4 +-
 css/bootstrap/mixins/_transition.scss         |   26 +
 css/bootstrap/mixins/_visibility.scss         |    8 +
 css/bootstrap/mixins/alerts.less              |   14 -
 css/bootstrap/mixins/background-variant.less  |    9 -
 css/bootstrap/mixins/border-radius.less       |   18 -
 css/bootstrap/mixins/buttons.less             |   65 -
 css/bootstrap/mixins/center-block.less        |    7 -
 css/bootstrap/mixins/clearfix.less            |   22 -
 css/bootstrap/mixins/forms.less               |   85 -
 css/bootstrap/mixins/gradients.less           |   59 -
 css/bootstrap/mixins/grid-framework.less      |   91 -
 css/bootstrap/mixins/grid.less                |  122 -
 css/bootstrap/mixins/hide-text.less           |   21 -
 css/bootstrap/mixins/image.less               |   33 -
 css/bootstrap/mixins/labels.less              |   12 -
 css/bootstrap/mixins/list-group.less          |   30 -
 css/bootstrap/mixins/nav-divider.less         |   10 -
 css/bootstrap/mixins/nav-vertical-align.less  |    9 -
 css/bootstrap/mixins/opacity.less             |    8 -
 css/bootstrap/mixins/pagination.less          |   24 -
 css/bootstrap/mixins/panels.less              |   24 -
 css/bootstrap/mixins/progress-bar.less        |   10 -
 css/bootstrap/mixins/reset-filter.less        |    8 -
 .../mixins/responsive-visibility.less         |   15 -
 css/bootstrap/mixins/size.less                |   10 -
 css/bootstrap/mixins/tab-focus.less           |    9 -
 css/bootstrap/mixins/table-row.less           |   28 -
 css/bootstrap/mixins/text-emphasis.less       |    9 -
 css/bootstrap/mixins/vendor-prefixes.less     |  227 --
 css/bootstrap/modals.less                     |  150 --
 css/bootstrap/navbar.less                     |  660 -----
 css/bootstrap/navs.less                       |  242 --
 css/bootstrap/normalize.less                  |  424 ---
 css/bootstrap/pager.less                      |   54 -
 css/bootstrap/pagination.less                 |   89 -
 css/bootstrap/panels.less                     |  271 --
 css/bootstrap/popovers.less                   |  131 -
 css/bootstrap/print.less                      |  101 -
 css/bootstrap/progress-bars.less              |   87 -
 css/bootstrap/responsive-embed.less           |   35 -
 css/bootstrap/responsive-utilities.less       |  194 --
 css/bootstrap/scaffolding.less                |  161 --
 css/bootstrap/tables.less                     |  234 --
 css/bootstrap/theme.less                      |  291 --
 css/bootstrap/thumbnails.less                 |   36 -
 css/bootstrap/tooltip.less                    |  101 -
 css/bootstrap/type.less                       |  302 ---
 css/bootstrap/utilities.less                  |   55 -
 css/bootstrap/utilities/_align.scss           |    8 +
 css/bootstrap/utilities/_background.scss      |   19 +
 css/bootstrap/utilities/_borders.scss         |   75 +
 css/bootstrap/utilities/_clearfix.scss        |    3 +
 css/bootstrap/utilities/_display.scss         |   26 +
 css/bootstrap/utilities/_embed.scss           |   39 +
 css/bootstrap/utilities/_flex.scss            |   51 +
 css/bootstrap/utilities/_float.scss           |   11 +
 css/bootstrap/utilities/_interactions.scss    |    5 +
 css/bootstrap/utilities/_overflow.scss        |    5 +
 css/bootstrap/utilities/_position.scss        |   32 +
 css/bootstrap/utilities/_screenreaders.scss   |   11 +
 css/bootstrap/utilities/_shadows.scss         |    6 +
 css/bootstrap/utilities/_sizing.scss          |   20 +
 css/bootstrap/utilities/_spacing.scss         |   73 +
 css/bootstrap/utilities/_stretched-link.scss  |   19 +
 css/bootstrap/utilities/_text.scss            |   72 +
 css/bootstrap/utilities/_visibility.scss      |   13 +
 css/bootstrap/variables.less                  |  872 ------
 css/bootstrap/vendor/_rfs.scss                |  228 ++
 css/bootstrap/wells.less                      |   29 -
 js/bootstrap.js.min                           | 2377 -----------------
 js/ie-emulation-modes-warning.js.min          |   51 -
 js/ie10-viewport-bug-workaround.js.min        |   23 -
 page.jst                                      |    3 +-
 164 files changed, 8132 insertions(+), 10833 deletions(-)
 delete mode 100644 css/bootstrap.css.less
 create mode 100644 css/bootstrap/_alert.scss
 create mode 100644 css/bootstrap/_badge.scss
 create mode 100644 css/bootstrap/_breadcrumb.scss
 create mode 100644 css/bootstrap/_button-group.scss
 create mode 100644 css/bootstrap/_buttons.scss
 create mode 100644 css/bootstrap/_card.scss
 create mode 100644 css/bootstrap/_carousel.scss
 create mode 100644 css/bootstrap/_close.scss
 create mode 100644 css/bootstrap/_code.scss
 create mode 100644 css/bootstrap/_custom-forms.scss
 create mode 100644 css/bootstrap/_dropdown.scss
 create mode 100644 css/bootstrap/_forms.scss
 create mode 100644 css/bootstrap/_functions.scss
 create mode 100644 css/bootstrap/_grid.scss
 create mode 100644 css/bootstrap/_images.scss
 create mode 100644 css/bootstrap/_input-group.scss
 create mode 100644 css/bootstrap/_jumbotron.scss
 create mode 100644 css/bootstrap/_list-group.scss
 create mode 100644 css/bootstrap/_media.scss
 create mode 100644 css/bootstrap/_mixins.scss
 create mode 100644 css/bootstrap/_modal.scss
 create mode 100644 css/bootstrap/_nav.scss
 create mode 100644 css/bootstrap/_navbar.scss
 create mode 100644 css/bootstrap/_pagination.scss
 create mode 100644 css/bootstrap/_popover.scss
 create mode 100644 css/bootstrap/_print.scss
 create mode 100644 css/bootstrap/_progress.scss
 create mode 100644 css/bootstrap/_reboot.scss
 create mode 100644 css/bootstrap/_root.scss
 create mode 100644 css/bootstrap/_spinners.scss
 create mode 100644 css/bootstrap/_tables.scss
 create mode 100644 css/bootstrap/_toasts.scss
 create mode 100644 css/bootstrap/_tooltip.scss
 create mode 100644 css/bootstrap/_transitions.scss
 create mode 100644 css/bootstrap/_type.scss
 create mode 100644 css/bootstrap/_utilities.scss
 create mode 100644 css/bootstrap/_variables.scss
 delete mode 100644 css/bootstrap/alerts.less
 delete mode 100644 css/bootstrap/badges.less
 create mode 100644 css/bootstrap/bootstrap-grid.css.scss
 create mode 100644 css/bootstrap/bootstrap-reboot.css.scss
 create mode 100644 css/bootstrap/bootstrap.css.scss
 delete mode 100644 css/bootstrap/breadcrumbs.less
 delete mode 100644 css/bootstrap/button-groups.less
 delete mode 100644 css/bootstrap/buttons.less
 delete mode 100644 css/bootstrap/carousel.less
 delete mode 100644 css/bootstrap/close.less
 delete mode 100644 css/bootstrap/code.less
 delete mode 100644 css/bootstrap/component-animations.less
 delete mode 100644 css/bootstrap/custom.less
 delete mode 100644 css/bootstrap/dropdowns.less
 delete mode 100644 css/bootstrap/forms.less
 delete mode 100644 css/bootstrap/glyphicons.less
 delete mode 100644 css/bootstrap/grid.less
 delete mode 100644 css/bootstrap/input-groups.less
 delete mode 100644 css/bootstrap/jumbotron.less
 delete mode 100644 css/bootstrap/labels.less
 delete mode 100644 css/bootstrap/list-group.less
 delete mode 100644 css/bootstrap/media.less
 delete mode 100644 css/bootstrap/mixins.less
 create mode 100644 css/bootstrap/mixins/_alert.scss
 create mode 100644 css/bootstrap/mixins/_background-variant.scss
 create mode 100644 css/bootstrap/mixins/_badge.scss
 create mode 100644 css/bootstrap/mixins/_border-radius.scss
 create mode 100644 css/bootstrap/mixins/_box-shadow.scss
 create mode 100644 css/bootstrap/mixins/_breakpoints.scss
 create mode 100644 css/bootstrap/mixins/_buttons.scss
 create mode 100644 css/bootstrap/mixins/_caret.scss
 create mode 100644 css/bootstrap/mixins/_clearfix.scss
 create mode 100644 css/bootstrap/mixins/_deprecate.scss
 create mode 100644 css/bootstrap/mixins/_float.scss
 create mode 100644 css/bootstrap/mixins/_forms.scss
 create mode 100644 css/bootstrap/mixins/_gradients.scss
 create mode 100644 css/bootstrap/mixins/_grid-framework.scss
 create mode 100644 css/bootstrap/mixins/_grid.scss
 create mode 100644 css/bootstrap/mixins/_hover.scss
 create mode 100644 css/bootstrap/mixins/_image.scss
 create mode 100644 css/bootstrap/mixins/_list-group.scss
 create mode 100644 css/bootstrap/mixins/_lists.scss
 create mode 100644 css/bootstrap/mixins/_nav-divider.scss
 create mode 100644 css/bootstrap/mixins/_pagination.scss
 rename css/bootstrap/mixins/{reset-text.less => _reset-text.scss} (61%)
 rename css/bootstrap/mixins/{resize.less => _resize.scss} (54%)
 create mode 100644 css/bootstrap/mixins/_screen-reader.scss
 create mode 100644 css/bootstrap/mixins/_size.scss
 create mode 100644 css/bootstrap/mixins/_table-row.scss
 create mode 100644 css/bootstrap/mixins/_text-emphasis.scss
 create mode 100644 css/bootstrap/mixins/_text-hide.scss
 rename css/bootstrap/mixins/{text-overflow.less => _text-truncate.scss} (75%)
 create mode 100644 css/bootstrap/mixins/_transition.scss
 create mode 100644 css/bootstrap/mixins/_visibility.scss
 delete mode 100644 css/bootstrap/mixins/alerts.less
 delete mode 100644 css/bootstrap/mixins/background-variant.less
 delete mode 100644 css/bootstrap/mixins/border-radius.less
 delete mode 100644 css/bootstrap/mixins/buttons.less
 delete mode 100644 css/bootstrap/mixins/center-block.less
 delete mode 100644 css/bootstrap/mixins/clearfix.less
 delete mode 100644 css/bootstrap/mixins/forms.less
 delete mode 100644 css/bootstrap/mixins/gradients.less
 delete mode 100644 css/bootstrap/mixins/grid-framework.less
 delete mode 100644 css/bootstrap/mixins/grid.less
 delete mode 100644 css/bootstrap/mixins/hide-text.less
 delete mode 100644 css/bootstrap/mixins/image.less
 delete mode 100644 css/bootstrap/mixins/labels.less
 delete mode 100644 css/bootstrap/mixins/list-group.less
 delete mode 100644 css/bootstrap/mixins/nav-divider.less
 delete mode 100644 css/bootstrap/mixins/nav-vertical-align.less
 delete mode 100644 css/bootstrap/mixins/opacity.less
 delete mode 100644 css/bootstrap/mixins/pagination.less
 delete mode 100644 css/bootstrap/mixins/panels.less
 delete mode 100644 css/bootstrap/mixins/progress-bar.less
 delete mode 100644 css/bootstrap/mixins/reset-filter.less
 delete mode 100644 css/bootstrap/mixins/responsive-visibility.less
 delete mode 100644 css/bootstrap/mixins/size.less
 delete mode 100644 css/bootstrap/mixins/tab-focus.less
 delete mode 100644 css/bootstrap/mixins/table-row.less
 delete mode 100644 css/bootstrap/mixins/text-emphasis.less
 delete mode 100644 css/bootstrap/mixins/vendor-prefixes.less
 delete mode 100644 css/bootstrap/modals.less
 delete mode 100644 css/bootstrap/navbar.less
 delete mode 100644 css/bootstrap/navs.less
 delete mode 100644 css/bootstrap/normalize.less
 delete mode 100644 css/bootstrap/pager.less
 delete mode 100644 css/bootstrap/pagination.less
 delete mode 100644 css/bootstrap/panels.less
 delete mode 100644 css/bootstrap/popovers.less
 delete mode 100644 css/bootstrap/print.less
 delete mode 100644 css/bootstrap/progress-bars.less
 delete mode 100644 css/bootstrap/responsive-embed.less
 delete mode 100644 css/bootstrap/responsive-utilities.less
 delete mode 100644 css/bootstrap/scaffolding.less
 delete mode 100644 css/bootstrap/tables.less
 delete mode 100644 css/bootstrap/theme.less
 delete mode 100644 css/bootstrap/thumbnails.less
 delete mode 100644 css/bootstrap/tooltip.less
 delete mode 100644 css/bootstrap/type.less
 delete mode 100644 css/bootstrap/utilities.less
 create mode 100644 css/bootstrap/utilities/_align.scss
 create mode 100644 css/bootstrap/utilities/_background.scss
 create mode 100644 css/bootstrap/utilities/_borders.scss
 create mode 100644 css/bootstrap/utilities/_clearfix.scss
 create mode 100644 css/bootstrap/utilities/_display.scss
 create mode 100644 css/bootstrap/utilities/_embed.scss
 create mode 100644 css/bootstrap/utilities/_flex.scss
 create mode 100644 css/bootstrap/utilities/_float.scss
 create mode 100644 css/bootstrap/utilities/_interactions.scss
 create mode 100644 css/bootstrap/utilities/_overflow.scss
 create mode 100644 css/bootstrap/utilities/_position.scss
 create mode 100644 css/bootstrap/utilities/_screenreaders.scss
 create mode 100644 css/bootstrap/utilities/_shadows.scss
 create mode 100644 css/bootstrap/utilities/_sizing.scss
 create mode 100644 css/bootstrap/utilities/_spacing.scss
 create mode 100644 css/bootstrap/utilities/_stretched-link.scss
 create mode 100644 css/bootstrap/utilities/_text.scss
 create mode 100644 css/bootstrap/utilities/_visibility.scss
 delete mode 100644 css/bootstrap/variables.less
 create mode 100644 css/bootstrap/vendor/_rfs.scss
 delete mode 100644 css/bootstrap/wells.less
 delete mode 100644 js/bootstrap.js.min
 delete mode 100644 js/ie-emulation-modes-warning.js.min
 delete mode 100644 js/ie10-viewport-bug-workaround.js.min

diff --git a/.gitignore b/.gitignore
index 678b875..66a3e20 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,8 @@
 .*.jst
 .*.less
 .*.min
+.*.sass
+.*.scss
 .*.svg
 /_zet/site.*
 /database.logjson
diff --git a/css/bootstrap.css.less b/css/bootstrap.css.less
deleted file mode 100644
index a1d23cc..0000000
--- a/css/bootstrap.css.less
+++ /dev/null
@@ -1,59 +0,0 @@
-/*!
- * Bootstrap v3.3.7 (http://getbootstrap.com)
- * Copyright 2011-2016 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- */
-
-// Core variables and mixins
-@import "bootstrap/variables.less";
-@import "bootstrap/mixins.less";
-
-// Reset and dependencies
-@import "bootstrap/normalize.less";
-@import "bootstrap/print.less";
-@import "bootstrap/glyphicons.less";
-
-// Core CSS
-@import "bootstrap/scaffolding.less";
-@import "bootstrap/type.less";
-@import "bootstrap/code.less";
-@import "bootstrap/grid.less";
-@import "bootstrap/tables.less";
-@import "bootstrap/forms.less";
-@import "bootstrap/buttons.less";
-
-// Components
-@import "bootstrap/component-animations.less";
-@import "bootstrap/dropdowns.less";
-@import "bootstrap/button-groups.less";
-@import "bootstrap/input-groups.less";
-@import "bootstrap/navs.less";
-@import "bootstrap/navbar.less";
-@import "bootstrap/breadcrumbs.less";
-@import "bootstrap/pagination.less";
-@import "bootstrap/pager.less";
-@import "bootstrap/labels.less";
-@import "bootstrap/badges.less";
-@import "bootstrap/jumbotron.less";
-@import "bootstrap/thumbnails.less";
-@import "bootstrap/alerts.less";
-@import "bootstrap/progress-bars.less";
-@import "bootstrap/media.less";
-@import "bootstrap/list-group.less";
-@import "bootstrap/panels.less";
-@import "bootstrap/responsive-embed.less";
-@import "bootstrap/wells.less";
-@import "bootstrap/close.less";
-
-// Components w/ JavaScript
-@import "bootstrap/modals.less";
-@import "bootstrap/tooltip.less";
-@import "bootstrap/popovers.less";
-@import "bootstrap/carousel.less";
-
-// Utility classes
-@import "bootstrap/utilities.less";
-@import "bootstrap/responsive-utilities.less";
-
-// Nick
-@import "bootstrap/custom.less";
diff --git a/css/bootstrap/_alert.scss b/css/bootstrap/_alert.scss
new file mode 100644
index 0000000..4aa1fc2
--- /dev/null
+++ b/css/bootstrap/_alert.scss
@@ -0,0 +1,52 @@
+//
+// Base styles
+//
+
+.alert {
+  position: relative;
+  padding: $alert-padding-y $alert-padding-x;
+  margin-bottom: $alert-margin-bottom;
+  border: $alert-border-width solid transparent;
+  @include border-radius($alert-border-radius);
+}
+
+// Headings for larger alerts
+.alert-heading {
+  // Specified to prevent conflicts of changing $headings-color
+  color: inherit;
+}
+
+// Provide class for links that match alerts
+.alert-link {
+  font-weight: $alert-link-font-weight;
+}
+
+
+// Dismissible alerts
+//
+// Expand the right padding and account for the close button's positioning.
+
+.alert-dismissible {
+  padding-right: $close-font-size + $alert-padding-x * 2;
+
+  // Adjust close link position
+  .close {
+    position: absolute;
+    top: 0;
+    right: 0;
+    z-index: 2;
+    padding: $alert-padding-y $alert-padding-x;
+    color: inherit;
+  }
+}
+
+
+// Alternate styles
+//
+// Generate contextual modifier classes for colorizing the alert.
+
+@each $color, $value in $theme-colors {
+  .alert-#{$color} {
+    @include alert-variant(theme-color-level($color, $alert-bg-level), theme-color-level($color, $alert-border-level), theme-color-level($color, $alert-color-level));
+  }
+}
diff --git a/css/bootstrap/_badge.scss b/css/bootstrap/_badge.scss
new file mode 100644
index 0000000..42c5d08
--- /dev/null
+++ b/css/bootstrap/_badge.scss
@@ -0,0 +1,54 @@
+// Base class
+//
+// Requires one of the contextual, color modifier classes for `color` and
+// `background-color`.
+
+.badge {
+  display: inline-block;
+  padding: $badge-padding-y $badge-padding-x;
+  @include font-size($badge-font-size);
+  font-weight: $badge-font-weight;
+  line-height: 1;
+  text-align: center;
+  white-space: nowrap;
+  vertical-align: baseline;
+  @include border-radius($badge-border-radius);
+  @include transition($badge-transition);
+
+  @at-root a#{&} {
+    @include hover-focus() {
+      text-decoration: none;
+    }
+  }
+
+  // Empty badges collapse automatically
+  &:empty {
+    display: none;
+  }
+}
+
+// Quick fix for badges in buttons
+.btn .badge {
+  position: relative;
+  top: -1px;
+}
+
+// Pill badges
+//
+// Make them extra rounded with a modifier to replace v3's badges.
+
+.badge-pill {
+  padding-right: $badge-pill-padding-x;
+  padding-left: $badge-pill-padding-x;
+  @include border-radius($badge-pill-border-radius);
+}
+
+// Colors
+//
+// Contextual variations (linked badges get darker on :hover).
+
+@each $color, $value in $theme-colors {
+  .badge-#{$color} {
+    @include badge-variant($value);
+  }
+}
diff --git a/css/bootstrap/_breadcrumb.scss b/css/bootstrap/_breadcrumb.scss
new file mode 100644
index 0000000..9c204c7
--- /dev/null
+++ b/css/bootstrap/_breadcrumb.scss
@@ -0,0 +1,42 @@
+.breadcrumb {
+  display: flex;
+  flex-wrap: wrap;
+  padding: $breadcrumb-padding-y $breadcrumb-padding-x;
+  margin-bottom: $breadcrumb-margin-bottom;
+  @include font-size($breadcrumb-font-size);
+  list-style: none;
+  background-color: $breadcrumb-bg;
+  @include border-radius($breadcrumb-border-radius);
+}
+
+.breadcrumb-item {
+  // The separator between breadcrumbs (by default, a forward-slash: "/")
+  + .breadcrumb-item {
+    padding-left: $breadcrumb-item-padding;
+
+    &::before {
+      float: left; // Suppress inline spacings and underlining of the separator
+      padding-right: $breadcrumb-item-padding;
+      color: $breadcrumb-divider-color;
+      content: escape-svg($breadcrumb-divider);
+    }
+  }
+
+  // IE9-11 hack to properly handle hyperlink underlines for breadcrumbs built
+  // without `<ul>`s. The `::before` pseudo-element generates an element
+  // *within* the .breadcrumb-item and thereby inherits the `text-decoration`.
+  //
+  // To trick IE into suppressing the underline, we give the pseudo-element an
+  // underline and then immediately remove it.
+  + .breadcrumb-item:hover::before {
+    text-decoration: underline;
+  }
+  // stylelint-disable-next-line no-duplicate-selectors
+  + .breadcrumb-item:hover::before {
+    text-decoration: none;
+  }
+
+  &.active {
+    color: $breadcrumb-active-color;
+  }
+}
diff --git a/css/bootstrap/_button-group.scss b/css/bootstrap/_button-group.scss
new file mode 100644
index 0000000..da02d79
--- /dev/null
+++ b/css/bootstrap/_button-group.scss
@@ -0,0 +1,163 @@
+// stylelint-disable selector-no-qualifying-type
+
+// Make the div behave like a button
+.btn-group,
+.btn-group-vertical {
+  position: relative;
+  display: inline-flex;
+  vertical-align: middle; // match .btn alignment given font-size hack above
+
+  > .btn {
+    position: relative;
+    flex: 1 1 auto;
+
+    // Bring the hover, focused, and "active" buttons to the front to overlay
+    // the borders properly
+    @include hover() {
+      z-index: 1;
+    }
+    &:focus,
+    &:active,
+    &.active {
+      z-index: 1;
+    }
+  }
+}
+
+// Optional: Group multiple button groups together for a toolbar
+.btn-toolbar {
+  display: flex;
+  flex-wrap: wrap;
+  justify-content: flex-start;
+
+  .input-group {
+    width: auto;
+  }
+}
+
+.btn-group {
+  // Prevent double borders when buttons are next to each other
+  > .btn:not(:first-child),
+  > .btn-group:not(:first-child) {
+    margin-left: -$btn-border-width;
+  }
+
+  // Reset rounded corners
+  > .btn:not(:last-child):not(.dropdown-toggle),
+  > .btn-group:not(:last-child) > .btn {
+    @include border-right-radius(0);
+  }
+
+  > .btn:not(:first-child),
+  > .btn-group:not(:first-child) > .btn {
+    @include border-left-radius(0);
+  }
+}
+
+// Sizing
+//
+// Remix the default button sizing classes into new ones for easier manipulation.
+
+.btn-group-sm > .btn { @extend .btn-sm; }
+.btn-group-lg > .btn { @extend .btn-lg; }
+
+
+//
+// Split button dropdowns
+//
+
+.dropdown-toggle-split {
+  padding-right: $btn-padding-x * .75;
+  padding-left: $btn-padding-x * .75;
+
+  &::after,
+  .dropup &::after,
+  .dropright &::after {
+    margin-left: 0;
+  }
+
+  .dropleft &::before {
+    margin-right: 0;
+  }
+}
+
+.btn-sm + .dropdown-toggle-split {
+  padding-right: $btn-padding-x-sm * .75;
+  padding-left: $btn-padding-x-sm * .75;
+}
+
+.btn-lg + .dropdown-toggle-split {
+  padding-right: $btn-padding-x-lg * .75;
+  padding-left: $btn-padding-x-lg * .75;
+}
+
+
+// The clickable button for toggling the menu
+// Set the same inset shadow as the :active state
+.btn-group.show .dropdown-toggle {
+  @include box-shadow($btn-active-box-shadow);
+
+  // Show no shadow for `.btn-link` since it has no other button styles.
+  &.btn-link {
+    @include box-shadow(none);
+  }
+}
+
+
+//
+// Vertical button groups
+//
+
+.btn-group-vertical {
+  flex-direction: column;
+  align-items: flex-start;
+  justify-content: center;
+
+  > .btn,
+  > .btn-group {
+    width: 100%;
+  }
+
+  > .btn:not(:first-child),
+  > .btn-group:not(:first-child) {
+    margin-top: -$btn-border-width;
+  }
+
+  // Reset rounded corners
+  > .btn:not(:last-child):not(.dropdown-toggle),
+  > .btn-group:not(:last-child) > .btn {
+    @include border-bottom-radius(0);
+  }
+
+  > .btn:not(:first-child),
+  > .btn-group:not(:first-child) > .btn {
+    @include border-top-radius(0);
+  }
+}
+
+
+// Checkbox and radio options
+//
+// In order to support the browser's form validation feedback, powered by the
+// `required` attribute, we have to "hide" the inputs via `clip`. We cannot use
+// `display: none;` or `visibility: hidden;` as that also hides the popover.
+// Simply visually hiding the inputs via `opacity` would leave them clickable in
+// certain cases which is prevented by using `clip` and `pointer-events`.
+// This way, we ensure a DOM element is visible to position the popover from.
+//
+// See https://github.com/twbs/bootstrap/pull/12794 and
+// https://github.com/twbs/bootstrap/pull/14559 for more information.
+
+.btn-group-toggle {
+  > .btn,
+  > .btn-group > .btn {
+    margin-bottom: 0; // Override default `<label>` value
+
+    input[type="radio"],
+    input[type="checkbox"] {
+      position: absolute;
+      clip: rect(0, 0, 0, 0);
+      pointer-events: none;
+    }
+  }
+}
diff --git a/css/bootstrap/_buttons.scss b/css/bootstrap/_buttons.scss
new file mode 100644
index 0000000..6ee24ba
--- /dev/null
+++ b/css/bootstrap/_buttons.scss
@@ -0,0 +1,142 @@
+// stylelint-disable selector-no-qualifying-type
+
+//
+// Base styles
+//
+
+.btn {
+  display: inline-block;
+  font-family: $btn-font-family;
+  font-weight: $btn-font-weight;
+  color: $body-color;
+  text-align: center;
+  text-decoration: if($link-decoration == none, null, none);
+  white-space: $btn-white-space;
+  vertical-align: middle;
+  user-select: none;
+  background-color: transparent;
+  border: $btn-border-width solid transparent;
+  @include button-size($btn-padding-y, $btn-padding-x, $btn-font-size, $btn-line-height, $btn-border-radius);
+  @include transition($btn-transition);
+
+  @include hover() {
+    color: $body-color;
+    text-decoration: none;
+  }
+
+  &:focus,
+  &.focus {
+    outline: 0;
+    box-shadow: $btn-focus-box-shadow;
+  }
+
+  // Disabled comes first so active can properly restyle
+  &.disabled,
+  &:disabled {
+    opacity: $btn-disabled-opacity;
+    @include box-shadow(none);
+  }
+
+  &:not(:disabled):not(.disabled) {
+    cursor: if($enable-pointer-cursor-for-buttons, pointer, null);
+
+    &:active,
+    &.active {
+      @include box-shadow($btn-active-box-shadow);
+
+      &:focus {
+        @include box-shadow($btn-focus-box-shadow, $btn-active-box-shadow);
+      }
+    }
+  }
+}
+
+// Future-proof disabling of clicks on `<a>` elements
+a.btn.disabled,
+fieldset:disabled a.btn {
+  pointer-events: none;
+}
+
+
+//
+// Alternate buttons
+//
+
+@each $color, $value in $theme-colors {
+  .btn-#{$color} {
+    @include button-variant($value, $value);
+  }
+}
+
+@each $color, $value in $theme-colors {
+  .btn-outline-#{$color} {
+    @include button-outline-variant($value);
+  }
+}
+
+
+//
+// Link buttons
+//
+
+// Make a button look and behave like a link
+.btn-link {
+  font-weight: $font-weight-normal;
+  color: $link-color;
+  text-decoration: $link-decoration;
+
+  @include hover() {
+    color: $link-hover-color;
+    text-decoration: $link-hover-decoration;
+  }
+
+  &:focus,
+  &.focus {
+    text-decoration: $link-hover-decoration;
+  }
+
+  &:disabled,
+  &.disabled {
+    color: $btn-link-disabled-color;
+    pointer-events: none;
+  }
+
+  // No need for an active state here
+}
+
+
+//
+// Button Sizes
+//
+
+.btn-lg {
+  @include button-size($btn-padding-y-lg, $btn-padding-x-lg, $btn-font-size-lg, $btn-line-height-lg, $btn-border-radius-lg);
+}
+
+.btn-sm {
+  @include button-size($btn-padding-y-sm, $btn-padding-x-sm, $btn-font-size-sm, $btn-line-height-sm, $btn-border-radius-sm);
+}
+
+
+//
+// Block button
+//
+
+.btn-block {
+  display: block;
+  width: 100%;
+
+  // Vertically space out multiple block buttons
+  + .btn-block {
+    margin-top: $btn-block-spacing-y;
+  }
+}
+
+// Specificity overrides
+input[type="submit"],
+input[type="reset"],
+input[type="button"] {
+  &.btn-block {
+    width: 100%;
+  }
+}
diff --git a/css/bootstrap/_card.scss b/css/bootstrap/_card.scss
new file mode 100644
index 0000000..a974163
--- /dev/null
+++ b/css/bootstrap/_card.scss
@@ -0,0 +1,286 @@
+//
+// Base styles
+//
+
+.card {
+  position: relative;
+  display: flex;
+  flex-direction: column;
+  min-width: 0; // See https://github.com/twbs/bootstrap/pull/22740#issuecomment-305868106
+  height: $card-height;
+  word-wrap: break-word;
+  background-color: $card-bg;
+  background-clip: border-box;
+  border: $card-border-width solid $card-border-color;
+  @include border-radius($card-border-radius);
+
+  > hr {
+    margin-right: 0;
+    margin-left: 0;
+  }
+
+  > .list-group {
+    border-top: inherit;
+    border-bottom: inherit;
+
+    &:first-child {
+      border-top-width: 0;
+      @include border-top-radius($card-inner-border-radius);
+    }
+
+    &:last-child  {
+      border-bottom-width: 0;
+      @include border-bottom-radius($card-inner-border-radius);
+    }
+  }
+
+  // Due to specificity of the above selector (`.card > .list-group`), we must
+  // use a child selector here to prevent double borders.
+  > .card-header + .list-group,
+  > .list-group + .card-footer {
+    border-top: 0;
+  }
+}
+
+.card-body {
+  // Enable `flex-grow: 1` for decks and groups so that card blocks take up
+  // as much space as possible, ensuring footers are aligned to the bottom.
+  flex: 1 1 auto;
+  // Workaround for the image size bug in IE
+  // See: https://github.com/twbs/bootstrap/pull/28855
+  min-height: 1px;
+  padding: $card-spacer-x;
+  color: $card-color;
+}
+
+.card-title {
+  margin-bottom: $card-spacer-y;
+}
+
+.card-subtitle {
+  margin-top: -$card-spacer-y * .5;
+  margin-bottom: 0;
+}
+
+.card-text:last-child {
+  margin-bottom: 0;
+}
+
+.card-link {
+  @include hover() {
+    text-decoration: none;
+  }
+
+  + .card-link {
+    margin-left: $card-spacer-x;
+  }
+}
+
+//
+// Optional textual caps
+//
+
+.card-header {
+  padding: $card-spacer-y $card-spacer-x;
+  margin-bottom: 0; // Removes the default margin-bottom of <hN>
+  color: $card-cap-color;
+  background-color: $card-cap-bg;
+  border-bottom: $card-border-width solid $card-border-color;
+
+  &:first-child {
+    @include border-radius($card-inner-border-radius $card-inner-border-radius 0 0);
+  }
+}
+
+.card-footer {
+  padding: $card-spacer-y $card-spacer-x;
+  color: $card-cap-color;
+  background-color: $card-cap-bg;
+  border-top: $card-border-width solid $card-border-color;
+
+  &:last-child {
+    @include border-radius(0 0 $card-inner-border-radius $card-inner-border-radius);
+  }
+}
+
+
+//
+// Header navs
+//
+
+.card-header-tabs {
+  margin-right: -$card-spacer-x * .5;
+  margin-bottom: -$card-spacer-y;
+  margin-left: -$card-spacer-x * .5;
+  border-bottom: 0;
+}
+
+.card-header-pills {
+  margin-right: -$card-spacer-x * .5;
+  margin-left: -$card-spacer-x * .5;
+}
+
+// Card image
+.card-img-overlay {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  padding: $card-img-overlay-padding;
+  @include border-radius($card-inner-border-radius);
+}
+
+.card-img,
+.card-img-top,
+.card-img-bottom {
+  flex-shrink: 0; // For IE: https://github.com/twbs/bootstrap/issues/29396
+  width: 100%; // Required because we use flexbox and this inherently applies align-self: stretch
+}
+
+.card-img,
+.card-img-top {
+  @include border-top-radius($card-inner-border-radius);
+}
+
+.card-img,
+.card-img-bottom {
+  @include border-bottom-radius($card-inner-border-radius);
+}
+
+
+// Card deck
+
+.card-deck {
+  .card {
+    margin-bottom: $card-deck-margin;
+  }
+
+  @include media-breakpoint-up(sm) {
+    display: flex;
+    flex-flow: row wrap;
+    margin-right: -$card-deck-margin;
+    margin-left: -$card-deck-margin;
+
+    .card {
+      // Flexbugs #4: https://github.com/philipwalton/flexbugs#flexbug-4
+      flex: 1 0 0%;
+      margin-right: $card-deck-margin;
+      margin-bottom: 0; // Override the default
+      margin-left: $card-deck-margin;
+    }
+  }
+}
+
+
+//
+// Card groups
+//
+
+.card-group {
+  // The child selector allows nested `.card` within `.card-group`
+  // to display properly.
+  > .card {
+    margin-bottom: $card-group-margin;
+  }
+
+  @include media-breakpoint-up(sm) {
+    display: flex;
+    flex-flow: row wrap;
+    // The child selector allows nested `.card` within `.card-group`
+    // to display properly.
+    > .card {
+      // Flexbugs #4: https://github.com/philipwalton/flexbugs#flexbug-4
+      flex: 1 0 0%;
+      margin-bottom: 0;
+
+      + .card {
+        margin-left: 0;
+        border-left: 0;
+      }
+
+      // Handle rounded corners
+      @if $enable-rounded {
+        &:not(:last-child) {
+          @include border-right-radius(0);
+
+          .card-img-top,
+          .card-header {
+            // stylelint-disable-next-line property-disallowed-list
+            border-top-right-radius: 0;
+          }
+          .card-img-bottom,
+          .card-footer {
+            // stylelint-disable-next-line property-disallowed-list
+            border-bottom-right-radius: 0;
+          }
+        }
+
+        &:not(:first-child) {
+          @include border-left-radius(0);
+
+          .card-img-top,
+          .card-header {
+            // stylelint-disable-next-line property-disallowed-list
+            border-top-left-radius: 0;
+          }
+          .card-img-bottom,
+          .card-footer {
+            // stylelint-disable-next-line property-disallowed-list
+            border-bottom-left-radius: 0;
+          }
+        }
+      }
+    }
+  }
+}
+
+
+//
+// Columns
+//
+
+.card-columns {
+  .card {
+    margin-bottom: $card-columns-margin;
+  }
+
+  @include media-breakpoint-up(sm) {
+    column-count: $card-columns-count;
+    column-gap: $card-columns-gap;
+    orphans: 1;
+    widows: 1;
+
+    .card {
+      display: inline-block; // Don't let them vertically span multiple columns
+      width: 100%; // Don't let their width change
+    }
+  }
+}
+
+
+//
+// Accordion
+//
+
+.accordion {
+  overflow-anchor: none;
+
+  > .card {
+    overflow: hidden;
+
+    &:not(:last-of-type) {
+      border-bottom: 0;
+      @include border-bottom-radius(0);
+    }
+
+    &:not(:first-of-type) {
+      @include border-top-radius(0);
+    }
+
+    > .card-header {
+      @include border-radius(0);
+      margin-bottom: -$card-border-width;
+    }
+  }
+}
diff --git a/css/bootstrap/_carousel.scss b/css/bootstrap/_carousel.scss
new file mode 100644
index 0000000..25aaf58
--- /dev/null
+++ b/css/bootstrap/_carousel.scss
@@ -0,0 +1,200 @@
+// Notes on the classes:
+//
+// 1. .carousel.pointer-event should ideally be pan-y (to allow for users to scroll vertically)
+//    even when their scroll action started on a carousel, but for compatibility (with Firefox)
+//    we're preventing all actions instead
+// 2. The .carousel-item-left and .carousel-item-right is used to indicate where
+//    the active slide is heading.
+// 3. .active.carousel-item is the current slide.
+// 4. .active.carousel-item-left and .active.carousel-item-right is the current
+//    slide in its in-transition state. Only one of these occurs at a time.
+// 5. .carousel-item-next.carousel-item-left and .carousel-item-prev.carousel-item-right
+//    is the upcoming slide in transition.
+
+.carousel {
+  position: relative;
+}
+
+.carousel.pointer-event {
+  touch-action: pan-y;
+}
+
+.carousel-inner {
+  position: relative;
+  width: 100%;
+  overflow: hidden;
+  @include clearfix();
+}
+
+.carousel-item {
+  position: relative;
+  display: none;
+  float: left;
+  width: 100%;
+  margin-right: -100%;
+  backface-visibility: hidden;
+  @include transition($carousel-transition);
+}
+
+.carousel-item.active,
+.carousel-item-next,
+.carousel-item-prev {
+  display: block;
+}
+
+.carousel-item-next:not(.carousel-item-left),
+.active.carousel-item-right {
+  transform: translateX(100%);
+}
+
+.carousel-item-prev:not(.carousel-item-right),
+.active.carousel-item-left {
+  transform: translateX(-100%);
+}
+
+
+//
+// Alternate transitions
+//
+
+.carousel-fade {
+  .carousel-item {
+    opacity: 0;
+    transition-property: opacity;
+    transform: none;
+  }
+
+  .carousel-item.active,
+  .carousel-item-next.carousel-item-left,
+  .carousel-item-prev.carousel-item-right {
+    z-index: 1;
+    opacity: 1;
+  }
+
+  .active.carousel-item-left,
+  .active.carousel-item-right {
+    z-index: 0;
+    opacity: 0;
+    @include transition(opacity 0s $carousel-transition-duration);
+  }
+}
+
+
+//
+// Left/right controls for nav
+//
+
+.carousel-control-prev,
+.carousel-control-next {
+  position: absolute;
+  top: 0;
+  bottom: 0;
+  z-index: 1;
+  // Use flex for alignment (1-3)
+  display: flex; // 1. allow flex styles
+  align-items: center; // 2. vertically center contents
+  justify-content: center; // 3. horizontally center contents
+  width: $carousel-control-width;
+  padding: 0;
+  color: $carousel-control-color;
+  text-align: center;
+  background: none;
+  border: 0;
+  opacity: $carousel-control-opacity;
+  @include transition($carousel-control-transition);
+
+  // Hover/focus state
+  @include hover-focus() {
+    color: $carousel-control-color;
+    text-decoration: none;
+    outline: 0;
+    opacity: $carousel-control-hover-opacity;
+  }
+}
+.carousel-control-prev {
+  left: 0;
+  @if $enable-gradients {
+    background-image: linear-gradient(90deg, rgba($black, .25), rgba($black, .001));
+  }
+}
+.carousel-control-next {
+  right: 0;
+  @if $enable-gradients {
+    background-image: linear-gradient(270deg, rgba($black, .25), rgba($black, .001));
+  }
+}
+
+// Icons for within
+.carousel-control-prev-icon,
+.carousel-control-next-icon {
+  display: inline-block;
+  width: $carousel-control-icon-width;
+  height: $carousel-control-icon-width;
+  background: 50% / 100% 100% no-repeat;
+}
+.carousel-control-prev-icon {
+  background-image: escape-svg($carousel-control-prev-icon-bg);
+}
+.carousel-control-next-icon {
+  background-image: escape-svg($carousel-control-next-icon-bg);
+}
+
+
+// Optional indicator pips
+//
+// Add an ordered list with the following class and add a list item for each
+// slide your carousel holds.
+
+.carousel-indicators {
+  position: absolute;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  z-index: 15;
+  display: flex;
+  justify-content: center;
+  padding-left: 0; // override <ol> default
+  // Use the .carousel-control's width as margin so we don't overlay those
+  margin-right: $carousel-control-width;
+  margin-left: $carousel-control-width;
+  list-style: none;
+
+  li {
+    box-sizing: content-box;
+    flex: 0 1 auto;
+    width: $carousel-indicator-width;
+    height: $carousel-indicator-height;
+    margin-right: $carousel-indicator-spacer;
+    margin-left: $carousel-indicator-spacer;
+    text-indent: -999px;
+    cursor: pointer;
+    background-color: $carousel-indicator-active-bg;
+    background-clip: padding-box;
+    // Use transparent borders to increase the hit area by 10px on top and bottom.
+    border-top: $carousel-indicator-hit-area-height solid transparent;
+    border-bottom: $carousel-indicator-hit-area-height solid transparent;
+    opacity: .5;
+    @include transition($carousel-indicator-transition);
+  }
+
+  .active {
+    opacity: 1;
+  }
+}
+
+
+// Optional captions
+//
+//
+
+.carousel-caption {
+  position: absolute;
+  right: (100% - $carousel-caption-width) * .5;
+  bottom: 20px;
+  left: (100% - $carousel-caption-width) * .5;
+  z-index: 10;
+  padding-top: 20px;
+  padding-bottom: 20px;
+  color: $carousel-caption-color;
+  text-align: center;
+}
diff --git a/css/bootstrap/_close.scss b/css/bootstrap/_close.scss
new file mode 100644
index 0000000..82e9593
--- /dev/null
+++ b/css/bootstrap/_close.scss
@@ -0,0 +1,40 @@
+.close {
+  float: right;
+  @include font-size($close-font-size);
+  font-weight: $close-font-weight;
+  line-height: 1;
+  color: $close-color;
+  text-shadow: $close-text-shadow;
+  opacity: .5;
+
+  // Override <a>'s hover style
+  @include hover() {
+    color: $close-color;
+    text-decoration: none;
+  }
+
+  &:not(:disabled):not(.disabled) {
+    @include hover-focus() {
+      opacity: .75;
+    }
+  }
+}
+
+// Additional properties for button version
+// iOS requires the button element instead of an anchor tag.
+// If you want the anchor version, it requires `href="#"`.
+// See https://developer.mozilla.org/en-US/docs/Web/Events/click#Safari_Mobile
+
+// stylelint-disable-next-line selector-no-qualifying-type
+button.close {
+  padding: 0;
+  background-color: transparent;
+  border: 0;
+}
+
+// Future-proof disabling of clicks on `<a>` elements
+
+// stylelint-disable-next-line selector-no-qualifying-type
+a.close.disabled {
+  pointer-events: none;
+}
diff --git a/css/bootstrap/_code.scss b/css/bootstrap/_code.scss
new file mode 100644
index 0000000..4bc117a
--- /dev/null
+++ b/css/bootstrap/_code.scss
@@ -0,0 +1,48 @@
+// Inline code
+code {
+  @include font-size($code-font-size);
+  color: $code-color;
+  word-wrap: break-word;
+
+  // Streamline the style when inside anchors to avoid broken underline and more
+  a > & {
+    color: inherit;
+  }
+}
+
+// User input typically entered via keyboard
+kbd {
+  padding: $kbd-padding-y $kbd-padding-x;
+  @include font-size($kbd-font-size);
+  color: $kbd-color;
+  background-color: $kbd-bg;
+  @include border-radius($border-radius-sm);
+  @include box-shadow($kbd-box-shadow);
+
+  kbd {
+    padding: 0;
+    @include font-size(100%);
+    font-weight: $nested-kbd-font-weight;
+    @include box-shadow(none);
+  }
+}
+
+// Blocks of code
+pre {
+  display: block;
+  @include font-size($code-font-size);
+  color: $pre-color;
+
+  // Account for some code outputs that place code tags in pre tags
+  code {
+    @include font-size(inherit);
+    color: inherit;
+    word-break: normal;
+  }
+}
+
+// Enable scrollable blocks of code
+.pre-scrollable {
+  max-height: $pre-scrollable-max-height;
+  overflow-y: scroll;
+}
diff --git a/css/bootstrap/_custom-forms.scss b/css/bootstrap/_custom-forms.scss
new file mode 100644
index 0000000..b3db8c4
--- /dev/null
+++ b/css/bootstrap/_custom-forms.scss
@@ -0,0 +1,526 @@
+// Embedded icons from Open Iconic.
+// Released under MIT and copyright 2014 Waybury.
+// https://useiconic.com/open
+
+
+// Checkboxes and radios
+//
+// Base class takes care of all the key behavioral aspects.
+
+.custom-control {
+  position: relative;
+  z-index: 1;
+  display: block;
+  min-height: $font-size-base * $line-height-base;
+  padding-left: $custom-control-gutter + $custom-control-indicator-size;
+  color-adjust: exact; // Keep themed appearance for print
+}
+
+.custom-control-inline {
+  display: inline-flex;
+  margin-right: $custom-control-spacer-x;
+}
+
+.custom-control-input {
+  position: absolute;
+  left: 0;
+  z-index: -1; // Put the input behind the label so it doesn't overlay text
+  width: $custom-control-indicator-size;
+  height: ($font-size-base * $line-height-base + $custom-control-indicator-size) * .5;
+  opacity: 0;
+
+  &:checked ~ .custom-control-label::before {
+    color: $custom-control-indicator-checked-color;
+    border-color: $custom-control-indicator-checked-border-color;
+    @include gradient-bg($custom-control-indicator-checked-bg);
+    @include box-shadow($custom-control-indicator-checked-box-shadow);
+  }
+
+  &:focus ~ .custom-control-label::before {
+    // the mixin is not used here to make sure there is feedback
+    @if $enable-shadows {
+      box-shadow: $input-box-shadow, $custom-control-indicator-focus-box-shadow;
+    } @else {
+      box-shadow: $custom-control-indicator-focus-box-shadow;
+    }
+  }
+
+  &:focus:not(:checked) ~ .custom-control-label::before {
+    border-color: $custom-control-indicator-focus-border-color;
+  }
+
+  &:not(:disabled):active ~ .custom-control-label::before {
+    color: $custom-control-indicator-active-color;
+    background-color: $custom-control-indicator-active-bg;
+    border-color: $custom-control-indicator-active-border-color;
+    @include box-shadow($custom-control-indicator-active-box-shadow);
+  }
+
+  // Use [disabled] and :disabled to work around https://github.com/twbs/bootstrap/issues/28247
+  &[disabled],
+  &:disabled {
+    ~ .custom-control-label {
+      color: $custom-control-label-disabled-color;
+
+      &::before {
+        background-color: $custom-control-indicator-disabled-bg;
+      }
+    }
+  }
+}
+
+// Custom control indicators
+//
+// Build the custom controls out of pseudo-elements.
+
+.custom-control-label {
+  position: relative;
+  margin-bottom: 0;
+  color: $custom-control-label-color;
+  vertical-align: top;
+  cursor: $custom-control-cursor;
+
+  // Background-color and (when enabled) gradient
+  &::before {
+    position: absolute;
+    top: ($font-size-base * $line-height-base - $custom-control-indicator-size) * .5;
+    left: -($custom-control-gutter + $custom-control-indicator-size);
+    display: block;
+    width: $custom-control-indicator-size;
+    height: $custom-control-indicator-size;
+    pointer-events: none;
+    content: "";
+    background-color: $custom-control-indicator-bg;
+    border: $custom-control-indicator-border-color solid $custom-control-indicator-border-width;
+    @include box-shadow($custom-control-indicator-box-shadow);
+  }
+
+  // Foreground (icon)
+  &::after {
+    position: absolute;
+    top: ($font-size-base * $line-height-base - $custom-control-indicator-size) * .5;
+    left: -($custom-control-gutter + $custom-control-indicator-size);
+    display: block;
+    width: $custom-control-indicator-size;
+    height: $custom-control-indicator-size;
+    content: "";
+    background: 50% / #{$custom-control-indicator-bg-size} no-repeat;
+  }
+}
+
+
+// Checkboxes
+//
+// Tweak just a few things for checkboxes.
+
+.custom-checkbox {
+  .custom-control-label::before {
+    @include border-radius($custom-checkbox-indicator-border-radius);
+  }
+
+  .custom-control-input:checked ~ .custom-control-label {
+    &::after {
+      background-image: escape-svg($custom-checkbox-indicator-icon-checked);
+    }
+  }
+
+  .custom-control-input:indeterminate ~ .custom-control-label {
+    &::before {
+      border-color: $custom-checkbox-indicator-indeterminate-border-color;
+      @include gradient-bg($custom-checkbox-indicator-indeterminate-bg);
+      @include box-shadow($custom-checkbox-indicator-indeterminate-box-shadow);
+    }
+    &::after {
+      background-image: escape-svg($custom-checkbox-indicator-icon-indeterminate);
+    }
+  }
+
+  .custom-control-input:disabled {
+    &:checked ~ .custom-control-label::before {
+      @include gradient-bg($custom-control-indicator-checked-disabled-bg);
+    }
+    &:indeterminate ~ .custom-control-label::before {
+      @include gradient-bg($custom-control-indicator-checked-disabled-bg);
+    }
+  }
+}
+
+// Radios
+//
+// Tweak just a few things for radios.
+
+.custom-radio {
+  .custom-control-label::before {
+    // stylelint-disable-next-line property-disallowed-list
+    border-radius: $custom-radio-indicator-border-radius;
+  }
+
+  .custom-control-input:checked ~ .custom-control-label {
+    &::after {
+      background-image: escape-svg($custom-radio-indicator-icon-checked);
+    }
+  }
+
+  .custom-control-input:disabled {
+    &:checked ~ .custom-control-label::before {
+      @include gradient-bg($custom-control-indicator-checked-disabled-bg);
+    }
+  }
+}
+
+
+// switches
+//
+// Tweak a few things for switches
+
+.custom-switch {
+  padding-left: $custom-switch-width + $custom-control-gutter;
+
+  .custom-control-label {
+    &::before {
+      left: -($custom-switch-width + $custom-control-gutter);
+      width: $custom-switch-width;
+      pointer-events: all;
+      // stylelint-disable-next-line property-disallowed-list
+      border-radius: $custom-switch-indicator-border-radius;
+    }
+
+    &::after {
+      top: add(($font-size-base * $line-height-base - $custom-control-indicator-size) * .5, $custom-control-indicator-border-width * 2);
+      left: add(-($custom-switch-width + $custom-control-gutter), $custom-control-indicator-border-width * 2);
+      width: $custom-switch-indicator-size;
+      height: $custom-switch-indicator-size;
+      background-color: $custom-control-indicator-border-color;
+      // stylelint-disable-next-line property-disallowed-list
+      border-radius: $custom-switch-indicator-border-radius;
+      @include transition(transform .15s ease-in-out, $custom-forms-transition);
+    }
+  }
+
+  .custom-control-input:checked ~ .custom-control-label {
+    &::after {
+      background-color: $custom-control-indicator-bg;
+      transform: translateX($custom-switch-width - $custom-control-indicator-size);
+    }
+  }
+
+  .custom-control-input:disabled {
+    &:checked ~ .custom-control-label::before {
+      @include gradient-bg($custom-control-indicator-checked-disabled-bg);
+    }
+  }
+}
+
+
+// Select
+//
+// Replaces the browser default select with a custom one, mostly pulled from
+// https://primer.github.io/.
+//
+
+.custom-select {
+  display: inline-block;
+  width: 100%;
+  height: $custom-select-height;
+  padding: $custom-select-padding-y ($custom-select-padding-x + $custom-select-indicator-padding) $custom-select-padding-y $custom-select-padding-x;
+  font-family: $custom-select-font-family;
+  @include font-size($custom-select-font-size);
+  font-weight: $custom-select-font-weight;
+  line-height: $custom-select-line-height;
+  color: $custom-select-color;
+  vertical-align: middle;
+  background: $custom-select-bg $custom-select-background;
+  border: $custom-select-border-width solid $custom-select-border-color;
+  @include border-radius($custom-select-border-radius, 0);
+  @include box-shadow($custom-select-box-shadow);
+  appearance: none;
+
+  &:focus {
+    border-color: $custom-select-focus-border-color;
+    outline: 0;
+    @if $enable-shadows {
+      @include box-shadow($custom-select-box-shadow, $custom-select-focus-box-shadow);
+    } @else {
+      // Avoid using mixin so we can pass custom focus shadow properly
+      box-shadow: $custom-select-focus-box-shadow;
+    }
+
+    &::-ms-value {
+      // For visual consistency with other platforms/browsers,
+      // suppress the default white text on blue background highlight given to
+      // the selected option text when the (still closed) <select> receives focus
+      // in IE and (under certain conditions) Edge.
+      // See https://github.com/twbs/bootstrap/issues/19398.
+      color: $input-color;
+      background-color: $input-bg;
+    }
+  }
+
+  &[multiple],
+  &[size]:not([size="1"]) {
+    height: auto;
+    padding-right: $custom-select-padding-x;
+    background-image: none;
+  }
+
+  &:disabled {
+    color: $custom-select-disabled-color;
+    background-color: $custom-select-disabled-bg;
+  }
+
+  // Hides the default caret in IE11
+  &::-ms-expand {
+    display: none;
+  }
+
+  // Remove outline from select box in FF
+  &:-moz-focusring {
+    color: transparent;
+    text-shadow: 0 0 0 $custom-select-color;
+  }
+}
+
+.custom-select-sm {
+  height: $custom-select-height-sm;
+  padding-top: $custom-select-padding-y-sm;
+  padding-bottom: $custom-select-padding-y-sm;
+  padding-left: $custom-select-padding-x-sm;
+  @include font-size($custom-select-font-size-sm);
+}
+
+.custom-select-lg {
+  height: $custom-select-height-lg;
+  padding-top: $custom-select-padding-y-lg;
+  padding-bottom: $custom-select-padding-y-lg;
+  padding-left: $custom-select-padding-x-lg;
+  @include font-size($custom-select-font-size-lg);
+}
+
+
+// File
+//
+// Custom file input.
+
+.custom-file {
+  position: relative;
+  display: inline-block;
+  width: 100%;
+  height: $custom-file-height;
+  margin-bottom: 0;
+}
+
+.custom-file-input {
+  position: relative;
+  z-index: 2;
+  width: 100%;
+  height: $custom-file-height;
+  margin: 0;
+  overflow: hidden;
+  opacity: 0;
+
+  &:focus ~ .custom-file-label {
+    border-color: $custom-file-focus-border-color;
+    box-shadow: $custom-file-focus-box-shadow;
+  }
+
+  // Use [disabled] and :disabled to work around https://github.com/twbs/bootstrap/issues/28247
+  &[disabled] ~ .custom-file-label,
+  &:disabled ~ .custom-file-label {
+    background-color: $custom-file-disabled-bg;
+  }
+
+  @each $lang, $value in $custom-file-text {
+    &:lang(#{$lang}) ~ .custom-file-label::after {
+      content: $value;
+    }
+  }
+
+  ~ .custom-file-label[data-browse]::after {
+    content: attr(data-browse);
+  }
+}
+
+.custom-file-label {
+  position: absolute;
+  top: 0;
+  right: 0;
+  left: 0;
+  z-index: 1;
+  height: $custom-file-height;
+  padding: $custom-file-padding-y $custom-file-padding-x;
+  overflow: hidden;
+  font-family: $custom-file-font-family;
+  font-weight: $custom-file-font-weight;
+  line-height: $custom-file-line-height;
+  color: $custom-file-color;
+  background-color: $custom-file-bg;
+  border: $custom-file-border-width solid $custom-file-border-color;
+  @include border-radius($custom-file-border-radius);
+  @include box-shadow($custom-file-box-shadow);
+
+  &::after {
+    position: absolute;
+    top: 0;
+    right: 0;
+    bottom: 0;
+    z-index: 3;
+    display: block;
+    height: $custom-file-height-inner;
+    padding: $custom-file-padding-y $custom-file-padding-x;
+    line-height: $custom-file-line-height;
+    color: $custom-file-button-color;
+    content: "Browse";
+    @include gradient-bg($custom-file-button-bg);
+    border-left: inherit;
+    @include border-radius(0 $custom-file-border-radius $custom-file-border-radius 0);
+  }
+}
+
+// Range
+//
+// Style range inputs the same across browsers. Vendor-specific rules for pseudo
+// elements cannot be mixed. As such, there are no shared styles for focus or
+// active states on prefixed selectors.
+
+.custom-range {
+  width: 100%;
+  height: add($custom-range-thumb-height, $custom-range-thumb-focus-box-shadow-width * 2);
+  padding: 0; // Need to reset padding
+  background-color: transparent;
+  appearance: none;
+
+  &:focus {
+    outline: 0;
+
+    // Pseudo-elements must be split across multiple rulesets to have an effect.
+    // No box-shadow() mixin for focus accessibility.
+    &::-webkit-slider-thumb { box-shadow: $custom-range-thumb-focus-box-shadow; }
+    &::-moz-range-thumb     { box-shadow: $custom-range-thumb-focus-box-shadow; }
+    &::-ms-thumb            { box-shadow: $custom-range-thumb-focus-box-shadow; }
+  }
+
+  &::-moz-focus-outer {
+    border: 0;
+  }
+
+  &::-webkit-slider-thumb {
+    width: $custom-range-thumb-width;
+    height: $custom-range-thumb-height;
+    margin-top: ($custom-range-track-height - $custom-range-thumb-height) * .5; // Webkit specific
+    @include gradient-bg($custom-range-thumb-bg);
+    border: $custom-range-thumb-border;
+    @include border-radius($custom-range-thumb-border-radius);
+    @include box-shadow($custom-range-thumb-box-shadow);
+    @include transition($custom-forms-transition);
+    appearance: none;
+
+    &:active {
+      @include gradient-bg($custom-range-thumb-active-bg);
+    }
+  }
+
+  &::-webkit-slider-runnable-track {
+    width: $custom-range-track-width;
+    height: $custom-range-track-height;
+    color: transparent; // Why?
+    cursor: $custom-range-track-cursor;
+    background-color: $custom-range-track-bg;
+    border-color: transparent;
+    @include border-radius($custom-range-track-border-radius);
+    @include box-shadow($custom-range-track-box-shadow);
+  }
+
+  &::-moz-range-thumb {
+    width: $custom-range-thumb-width;
+    height: $custom-range-thumb-height;
+    @include gradient-bg($custom-range-thumb-bg);
+    border: $custom-range-thumb-border;
+    @include border-radius($custom-range-thumb-border-radius);
+    @include box-shadow($custom-range-thumb-box-shadow);
+    @include transition($custom-forms-transition);
+    appearance: none;
+
+    &:active {
+      @include gradient-bg($custom-range-thumb-active-bg);
+    }
+  }
+
+  &::-moz-range-track {
+    width: $custom-range-track-width;
+    height: $custom-range-track-height;
+    color: transparent;
+    cursor: $custom-range-track-cursor;
+    background-color: $custom-range-track-bg;
+    border-color: transparent; // Firefox specific?
+    @include border-radius($custom-range-track-border-radius);
+    @include box-shadow($custom-range-track-box-shadow);
+  }
+
+  &::-ms-thumb {
+    width: $custom-range-thumb-width;
+    height: $custom-range-thumb-height;
+    margin-top: 0; // Edge specific
+    margin-right: $custom-range-thumb-focus-box-shadow-width; // Workaround that overflowed box-shadow is hidden.
+    margin-left: $custom-range-thumb-focus-box-shadow-width;  // Workaround that overflowed box-shadow is hidden.
+    @include gradient-bg($custom-range-thumb-bg);
+    border: $custom-range-thumb-border;
+    @include border-radius($custom-range-thumb-border-radius);
+    @include box-shadow($custom-range-thumb-box-shadow);
+    @include transition($custom-forms-transition);
+    appearance: none;
+
+    &:active {
+      @include gradient-bg($custom-range-thumb-active-bg);
+    }
+  }
+
+  &::-ms-track {
+    width: $custom-range-track-width;
+    height: $custom-range-track-height;
+    color: transparent;
+    cursor: $custom-range-track-cursor;
+    background-color: transparent;
+    border-color: transparent;
+    border-width: $custom-range-thumb-height * .5;
+    @include box-shadow($custom-range-track-box-shadow);
+  }
+
+  &::-ms-fill-lower {
+    background-color: $custom-range-track-bg;
+    @include border-radius($custom-range-track-border-radius);
+  }
+
+  &::-ms-fill-upper {
+    margin-right: 15px; // arbitrary?
+    background-color: $custom-range-track-bg;
+    @include border-radius($custom-range-track-border-radius);
+  }
+
+  &:disabled {
+    &::-webkit-slider-thumb {
+      background-color: $custom-range-thumb-disabled-bg;
+    }
+
+    &::-webkit-slider-runnable-track {
+      cursor: default;
+    }
+
+    &::-moz-range-thumb {
+      background-color: $custom-range-thumb-disabled-bg;
+    }
+
+    &::-moz-range-track {
+      cursor: default;
+    }
+
+    &::-ms-thumb {
+      background-color: $custom-range-thumb-disabled-bg;
+    }
+  }
+}
+
+.custom-control-label::before,
+.custom-file-label,
+.custom-select {
+  @include transition($custom-forms-transition);
+}
diff --git a/css/bootstrap/_dropdown.scss b/css/bootstrap/_dropdown.scss
new file mode 100644
index 0000000..f39de11
--- /dev/null
+++ b/css/bootstrap/_dropdown.scss
@@ -0,0 +1,192 @@
+// The dropdown wrapper (`<div>`)
+.dropup,
+.dropright,
+.dropdown,
+.dropleft {
+  position: relative;
+}
+
+.dropdown-toggle {
+  white-space: nowrap;
+
+  // Generate the caret automatically
+  @include caret();
+}
+
+// The dropdown menu
+.dropdown-menu {
+  position: absolute;
+  top: 100%;
+  left: 0;
+  z-index: $zindex-dropdown;
+  display: none; // none by default, but block on "open" of the menu
+  float: left;
+  min-width: $dropdown-min-width;
+  padding: $dropdown-padding-y $dropdown-padding-x;
+  margin: $dropdown-spacer 0 0; // override default ul
+  @include font-size($dropdown-font-size);
+  color: $dropdown-color;
+  text-align: left; // Ensures proper alignment if parent has it changed (e.g., modal footer)
+  list-style: none;
+  background-color: $dropdown-bg;
+  background-clip: padding-box;
+  border: $dropdown-border-width solid $dropdown-border-color;
+  @include border-radius($dropdown-border-radius);
+  @include box-shadow($dropdown-box-shadow);
+}
+
+@each $breakpoint in map-keys($grid-breakpoints) {
+  @include media-breakpoint-up($breakpoint) {
+    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);
+
+    .dropdown-menu#{$infix}-left {
+      right: auto;
+      left: 0;
+    }
+
+    .dropdown-menu#{$infix}-right {
+      right: 0;
+      left: auto;
+    }
+  }
+}
+
+// Allow for dropdowns to go bottom up (aka, dropup-menu)
+// Just add .dropup after the standard .dropdown class and you're set.
+.dropup {
+  .dropdown-menu {
+    top: auto;
+    bottom: 100%;
+    margin-top: 0;
+    margin-bottom: $dropdown-spacer;
+  }
+
+  .dropdown-toggle {
+    @include caret(up);
+  }
+}
+
+.dropright {
+  .dropdown-menu {
+    top: 0;
+    right: auto;
+    left: 100%;
+    margin-top: 0;
+    margin-left: $dropdown-spacer;
+  }
+
+  .dropdown-toggle {
+    @include caret(right);
+    &::after {
+      vertical-align: 0;
+    }
+  }
+}
+
+.dropleft {
+  .dropdown-menu {
+    top: 0;
+    right: 100%;
+    left: auto;
+    margin-top: 0;
+    margin-right: $dropdown-spacer;
+  }
+
+  .dropdown-toggle {
+    @include caret(left);
+    &::before {
+      vertical-align: 0;
+    }
+  }
+}
+
+// When Popper is enabled, reset the basic dropdown position
+// stylelint-disable-next-line no-duplicate-selectors
+.dropdown-menu {
+  &[x-placement^="top"],
+  &[x-placement^="right"],
+  &[x-placement^="bottom"],
+  &[x-placement^="left"] {
+    right: auto;
+    bottom: auto;
+  }
+}
+
+// Dividers (basically an `<hr>`) within the dropdown
+.dropdown-divider {
+  @include nav-divider($dropdown-divider-bg, $dropdown-divider-margin-y, true);
+}
+
+// Links, buttons, and more within the dropdown menu
+//
+// `<button>`-specific styles are denoted with `// For <button>s`
+.dropdown-item {
+  display: block;
+  width: 100%; // For `<button>`s
+  padding: $dropdown-item-padding-y $dropdown-item-padding-x;
+  clear: both;
+  font-weight: $font-weight-normal;
+  color: $dropdown-link-color;
+  text-align: inherit; // For `<button>`s
+  text-decoration: if($link-decoration == none, null, none);
+  white-space: nowrap; // prevent links from randomly breaking onto new lines
+  background-color: transparent; // For `<button>`s
+  border: 0; // For `<button>`s
+
+  // Prevent dropdown overflow if there's no padding
+  // See https://github.com/twbs/bootstrap/pull/27703
+  @if $dropdown-padding-y == 0 {
+    &:first-child {
+      @include border-top-radius($dropdown-inner-border-radius);
+    }
+
+    &:last-child {
+      @include border-bottom-radius($dropdown-inner-border-radius);
+    }
+  }
+
+  @include hover-focus() {
+    color: $dropdown-link-hover-color;
+    text-decoration: none;
+    @include gradient-bg($dropdown-link-hover-bg);
+  }
+
+  &.active,
+  &:active {
+    color: $dropdown-link-active-color;
+    text-decoration: none;
+    @include gradient-bg($dropdown-link-active-bg);
+  }
+
+  &.disabled,
+  &:disabled {
+    color: $dropdown-link-disabled-color;
+    pointer-events: none;
+    background-color: transparent;
+    // Remove CSS gradients if they're enabled
+    @if $enable-gradients {
+      background-image: none;
+    }
+  }
+}
+
+.dropdown-menu.show {
+  display: block;
+}
+
+// Dropdown section headers
+.dropdown-header {
+  display: block;
+  padding: $dropdown-header-padding;
+  margin-bottom: 0; // for use with heading elements
+  @include font-size($font-size-sm);
+  color: $dropdown-header-color;
+  white-space: nowrap; // as with > li > a
+}
+
+// Dropdown text
+.dropdown-item-text {
+  display: block;
+  padding: $dropdown-item-padding-y $dropdown-item-padding-x;
+  color: $dropdown-link-color;
+}
diff --git a/css/bootstrap/_forms.scss b/css/bootstrap/_forms.scss
new file mode 100644
index 0000000..cde4663
--- /dev/null
+++ b/css/bootstrap/_forms.scss
@@ -0,0 +1,347 @@
+// stylelint-disable selector-no-qualifying-type
+
+//
+// Textual form controls
+//
+
+.form-control {
+  display: block;
+  width: 100%;
+  height: $input-height;
+  padding: $input-padding-y $input-padding-x;
+  font-family: $input-font-family;
+  @include font-size($input-font-size);
+  font-weight: $input-font-weight;
+  line-height: $input-line-height;
+  color: $input-color;
+  background-color: $input-bg;
+  background-clip: padding-box;
+  border: $input-border-width solid $input-border-color;
+
+  // Note: This has no effect on <select>s in some browsers, due to the limited stylability of `<select>`s in CSS.
+  @include border-radius($input-border-radius, 0);
+
+  @include box-shadow($input-box-shadow);
+  @include transition($input-transition);
+
+  // Unstyle the caret on `<select>`s in IE10+.
+  &::-ms-expand {
+    background-color: transparent;
+    border: 0;
+  }
+
+  // Customize the `:focus` state to imitate native WebKit styles.
+  @include form-control-focus($ignore-warning: true);
+
+  // Placeholder
+  &::placeholder {
+    color: $input-placeholder-color;
+    // Override Firefox's unusual default opacity; see https://github.com/twbs/bootstrap/pull/11526.
+    opacity: 1;
+  }
+
+  // Disabled and read-only inputs
+  //
+  // HTML5 says that controls under a fieldset > legend:first-child won't be
+  // disabled if the fieldset is disabled. Due to implementation difficulty, we
+  // don't honor that edge case; we style them as disabled anyway.
+  &:disabled,
+  &[readonly] {
+    background-color: $input-disabled-bg;
+    // iOS fix for unreadable disabled content; see https://github.com/twbs/bootstrap/issues/11655.
+    opacity: 1;
+  }
+}
+
+input[type="date"],
+input[type="time"],
+input[type="datetime-local"],
+input[type="month"] {
+  &.form-control {
+    appearance: none; // Fix appearance for date inputs in Safari
+  }
+}
+
+select.form-control {
+  // Remove select outline from select box in FF
+  &:-moz-focusring {
+    color: transparent;
+    text-shadow: 0 0 0 $input-color;
+  }
+
+  &:focus::-ms-value {
+    // Suppress the nested default white text on blue background highlight given to
+    // the selected option text when the (still closed) <select> receives focus
+    // in IE and (under certain conditions) Edge, as it looks bad and cannot be made to
+    // match the appearance of the native widget.
+    // See https://github.com/twbs/bootstrap/issues/19398.
+    color: $input-color;
+    background-color: $input-bg;
+  }
+}
+
+// Make file inputs better match text inputs by forcing them to new lines.
+.form-control-file,
+.form-control-range {
+  display: block;
+  width: 100%;
+}
+
+
+//
+// Labels
+//
+
+// For use with horizontal and inline forms, when you need the label (or legend)
+// text to align with the form controls.
+.col-form-label {
+  padding-top: add($input-padding-y, $input-border-width);
+  padding-bottom: add($input-padding-y, $input-border-width);
+  margin-bottom: 0; // Override the `<label>/<legend>` default
+  @include font-size(inherit); // Override the `<legend>` default
+  line-height: $input-line-height;
+}
+
+.col-form-label-lg {
+  padding-top: add($input-padding-y-lg, $input-border-width);
+  padding-bottom: add($input-padding-y-lg, $input-border-width);
+  @include font-size($input-font-size-lg);
+  line-height: $input-line-height-lg;
+}
+
+.col-form-label-sm {
+  padding-top: add($input-padding-y-sm, $input-border-width);
+  padding-bottom: add($input-padding-y-sm, $input-border-width);
+  @include font-size($input-font-size-sm);
+  line-height: $input-line-height-sm;
+}
+
+
+// Readonly controls as plain text
+//
+// Apply class to a readonly input to make it appear like regular plain
+// text (without any border, background color, focus indicator)
+
+.form-control-plaintext {
+  display: block;
+  width: 100%;
+  padding: $input-padding-y 0;
+  margin-bottom: 0; // match inputs if this class comes on inputs with default margins
+  @include font-size($input-font-size);
+  line-height: $input-line-height;
+  color: $input-plaintext-color;
+  background-color: transparent;
+  border: solid transparent;
+  border-width: $input-border-width 0;
+
+  &.form-control-sm,
+  &.form-control-lg {
+    padding-right: 0;
+    padding-left: 0;
+  }
+}
+
+
+// Form control sizing
+//
+// Build on `.form-control` with modifier classes to decrease or increase the
+// height and font-size of form controls.
+//
+// Repeated in `_input_group.scss` to avoid Sass extend issues.
+
+.form-control-sm {
+  height: $input-height-sm;
+  padding: $input-padding-y-sm $input-padding-x-sm;
+  @include font-size($input-font-size-sm);
+  line-height: $input-line-height-sm;
+  @include border-radius($input-border-radius-sm);
+}
+
+.form-control-lg {
+  height: $input-height-lg;
+  padding: $input-padding-y-lg $input-padding-x-lg;
+  @include font-size($input-font-size-lg);
+  line-height: $input-line-height-lg;
+  @include border-radius($input-border-radius-lg);
+}
+
+// stylelint-disable-next-line no-duplicate-selectors
+select.form-control {
+  &[size],
+  &[multiple] {
+    height: auto;
+  }
+}
+
+textarea.form-control {
+  height: auto;
+}
+
+// Form groups
+//
+// Designed to help with the organization and spacing of vertical forms. For
+// horizontal forms, use the predefined grid classes.
+
+.form-group {
+  margin-bottom: $form-group-margin-bottom;
+}
+
+.form-text {
+  display: block;
+  margin-top: $form-text-margin-top;
+}
+
+
+// Form grid
+//
+// Special replacement for our grid system's `.row` for tighter form layouts.
+
+.form-row {
+  display: flex;
+  flex-wrap: wrap;
+  margin-right: -$form-grid-gutter-width * .5;
+  margin-left: -$form-grid-gutter-width * .5;
+
+  > .col,
+  > [class*="col-"] {
+    padding-right: $form-grid-gutter-width * .5;
+    padding-left: $form-grid-gutter-width * .5;
+  }
+}
+
+
+// Checkboxes and radios
+//
+// Indent the labels to position radios/checkboxes as hanging controls.
+
+.form-check {
+  position: relative;
+  display: block;
+  padding-left: $form-check-input-gutter;
+}
+
+.form-check-input {
+  position: absolute;
+  margin-top: $form-check-input-margin-y;
+  margin-left: -$form-check-input-gutter;
+
+  // Use [disabled] and :disabled for workaround https://github.com/twbs/bootstrap/issues/28247
+  &[disabled] ~ .form-check-label,
+  &:disabled ~ .form-check-label {
+    color: $text-muted;
+  }
+}
+
+.form-check-label {
+  margin-bottom: 0; // Override default `<label>` bottom margin
+}
+
+.form-check-inline {
+  display: inline-flex;
+  align-items: center;
+  padding-left: 0; // Override base .form-check
+  margin-right: $form-check-inline-margin-x;
+
+  // Undo .form-check-input defaults and add some `margin-right`.
+  .form-check-input {
+    position: static;
+    margin-top: 0;
+    margin-right: $form-check-inline-input-margin-x;
+    margin-left: 0;
+  }
+}
+
+
+// Form validation
+//
+// Provide feedback to users when form field values are valid or invalid. Works
+// primarily for client-side validation via scoped `:invalid` and `:valid`
+// pseudo-classes but also includes `.is-invalid` and `.is-valid` classes for
+// server side validation.
+
+@each $state, $data in $form-validation-states {
+  @include form-validation-state($state, map-get($data, color), map-get($data, icon));
+}
+
+// Inline forms
+//
+// Make forms appear inline(-block) by adding the `.form-inline` class. Inline
+// forms begin stacked on extra small (mobile) devices and then go inline when
+// viewports reach <768px.
+//
+// Requires wrapping inputs and labels with `.form-group` for proper display of
+// default HTML form controls and our custom form controls (e.g., input groups).
+
+.form-inline {
+  display: flex;
+  flex-flow: row wrap;
+  align-items: center; // Prevent shorter elements from growing to same height as others (e.g., small buttons growing to normal sized button height)
+
+  // Because we use flex, the initial sizing of checkboxes is collapsed and
+  // doesn't occupy the full-width (which is what we want for xs grid tier),
+  // so we force that here.
+  .form-check {
+    width: 100%;
+  }
+
+  // Kick in the inline
+  @include media-breakpoint-up(sm) {
+    label {
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      margin-bottom: 0;
+    }
+
+    // Inline-block all the things for "inline"
+    .form-group {
+      display: flex;
+      flex: 0 0 auto;
+      flex-flow: row wrap;
+      align-items: center;
+      margin-bottom: 0;
+    }
+
+    // Allow folks to *not* use `.form-group`
+    .form-control {
+      display: inline-block;
+      width: auto; // Prevent labels from stacking above inputs in `.form-group`
+      vertical-align: middle;
+    }
+
+    // Make static controls behave like regular ones
+    .form-control-plaintext {
+      display: inline-block;
+    }
+
+    .input-group,
+    .custom-select {
+      width: auto;
+    }
+
+    // Remove default margin on radios/checkboxes that were used for stacking, and
+    // then undo the floating of radios and checkboxes to match.
+    .form-check {
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      width: auto;
+      padding-left: 0;
+    }
+    .form-check-input {
+      position: relative;
+      flex-shrink: 0;
+      margin-top: 0;
+      margin-right: $form-check-input-margin-x;
+      margin-left: 0;
+    }
+
+    .custom-control {
+      align-items: center;
+      justify-content: center;
+    }
+    .custom-control-label {
+      margin-bottom: 0;
+    }
+  }
+}
diff --git a/css/bootstrap/_functions.scss b/css/bootstrap/_functions.scss
new file mode 100644
index 0000000..13d9de0
--- /dev/null
+++ b/css/bootstrap/_functions.scss
@@ -0,0 +1,190 @@
+// Bootstrap functions
+//
+// Utility mixins and functions for evaluating source code across our variables, maps, and mixins.
+
+// Ascending
+// Used to evaluate Sass maps like our grid breakpoints.
+@mixin _assert-ascending($map, $map-name) {
+  $prev-key: null;
+  $prev-num: null;
+  @each $key, $num in $map {
+    @if $prev-num == null or unit($num) == "%" or unit($prev-num) == "%" {
+      // Do nothing
+    } @else if not comparable($prev-num, $num) {
+      @warn "Potentially invalid value for #{$map-name}: This map must be in ascending order, but key '#{$key}' has value #{$num} whose unit makes it incomparable to #{$prev-num}, the value of the previous key '#{$prev-key}' !";
+    } @else if $prev-num >= $num {
+      @warn "Invalid value for #{$map-name}: This map must be in ascending order, but key '#{$key}' has value #{$num} which isn't greater than #{$prev-num}, the value of the previous key '#{$prev-key}' !";
+    }
+    $prev-key: $key;
+    $prev-num: $num;
+  }
+}
+
+// Starts at zero
+// Used to ensure the min-width of the lowest breakpoint starts at 0.
+@mixin _assert-starts-at-zero($map, $map-name: "$grid-breakpoints") {
+  @if length($map) > 0 {
+    $values: map-values($map);
+    $first-value: nth($values, 1);
+    @if $first-value != 0 {
+      @warn "First breakpoint in #{$map-name} must start at 0, but starts at #{$first-value}.";
+    }
+  }
+}
+
+// Replace `$search` with `$replace` in `$string`
+// Used on our SVG icon backgrounds for custom forms.
+//
+// @author Hugo Giraudel
+// @param {String} $string - Initial string
+// @param {String} $search - Substring to replace
+// @param {String} $replace ('') - New value
+// @return {String} - Updated string
+@function str-replace($string, $search, $replace: "") {
+  $index: str-index($string, $search);
+
+  @if $index {
+    @return str-slice($string, 1, $index - 1) + $replace + str-replace(str-slice($string, $index + str-length($search)), $search, $replace);
+  }
+
+  @return $string;
+}
+
+// See https://codepen.io/kevinweber/pen/dXWoRw
+//
+// Requires the use of quotes around data URIs.
+
+@function escape-svg($string) {
+  @if str-index($string, "data:image/svg+xml") {
+    @each $char, $encoded in $escaped-characters {
+      // Do not escape the url brackets
+      @if str-index($string, "url(") == 1 {
+        $string: url("#{str-replace(str-slice($string, 6, -3), $char, $encoded)}");
+      } @else {
+        $string: str-replace($string, $char, $encoded);
+      }
+    }
+  }
+
+  @return $string;
+}
+
+// Color contrast
+@function color-yiq($color, $dark: $yiq-text-dark, $light: $yiq-text-light) {
+  $r: red($color);
+  $g: green($color);
+  $b: blue($color);
+
+  $yiq: (($r * 299) + ($g * 587) + ($b * 114)) * .001;
+
+  @if ($yiq >= $yiq-contrasted-threshold) {
+    @return $dark;
+  } @else {
+    @return $light;
+  }
+}
+
+// Retrieve color Sass maps
+@function color($key: "blue") {
+  @return map-get($colors, $key);
+}
+
+@function theme-color($key: "primary") {
+  @return map-get($theme-colors, $key);
+}
+
+@function gray($key: "100") {
+  @return map-get($grays, $key);
+}
+
+// Request a theme color level
+@function theme-color-level($color-name: "primary", $level: 0) {
+  $color: theme-color($color-name);
+  $color-base: if($level > 0, $black, $white);
+  $level: abs($level);
+
+  @return mix($color-base, $color, $level * $theme-color-interval);
+}
+
+// Return valid calc
+@function add($value1, $value2, $return-calc: true) {
+  @if $value1 == null {
+    @return $value2;
+  }
+
+  @if $value2 == null {
+    @return $value1;
+  }
+
+  @if type-of($value1) == number and type-of($value2) == number and comparable($value1, $value2) {
+    @return $value1 + $value2;
+  }
+
+  @return if($return-calc == true, calc(#{$value1} + #{$value2}), $value1 + unquote(" + ") + $value2);
+}
+
+@function subtract($value1, $value2, $return-calc: true) {
+  @if $value1 == null and $value2 == null {
+    @return null;
+  }
+
+  @if $value1 == null {
+    @return -$value2;
+  }
+
+  @if $value2 == null {
+    @return $value1;
+  }
+
+  @if type-of($value1) == number and type-of($value2) == number and comparable($value1, $value2) {
+    @return $value1 - $value2;
+  }
+
+  @if type-of($value2) != number {
+    $value2: unquote("(") + $value2 + unquote(")");
+  }
+
+  @return if($return-calc == true, calc(#{$value1} - #{$value2}), $value1 + unquote(" - ") + $value2);
+}
+
+@function divide($dividend, $divisor, $precision: 10) {
+  $sign: if($dividend > 0 and $divisor > 0 or $dividend < 0 and $divisor < 0, 1, -1);
+  $dividend: abs($dividend);
+  $divisor: abs($divisor);
+  @if $dividend == 0 {
+    @return 0;
+  }
+  @if $divisor == 0 {
+    @error "Cannot divide by 0";
+  }
+  $remainder: $dividend;
+  $result: 0;
+  $factor: 10;
+  @while ($remainder > 0 and $precision >= 0) {
+    $quotient: 0;
+    @while ($remainder >= $divisor) {
+      $remainder: $remainder - $divisor;
+      $quotient: $quotient + 1;
+    }
+    $result: $result * 10 + $quotient;
+    $factor: $factor * .1;
+    $remainder: $remainder * 10;
+    $precision: $precision - 1;
+    @if ($precision < 0 and $remainder >= $divisor * 5) {
+      $result: $result + 1;
+    }
+  }
+  $result: $result * $factor * $sign;
+  $dividend-unit: unit($dividend);
+  $divisor-unit: unit($divisor);
+  $unit-map: (
+    "px": 1px,
+    "rem": 1rem,
+    "em": 1em,
+    "%": 1%
+  );
+  @if ($dividend-unit != $divisor-unit and map-has-key($unit-map, $dividend-unit)) {
+    $result: $result * map-get($unit-map, $dividend-unit);
+  }
+  @return $result;
+}
diff --git a/css/bootstrap/_grid.scss b/css/bootstrap/_grid.scss
new file mode 100644
index 0000000..0bfe530
--- /dev/null
+++ b/css/bootstrap/_grid.scss
@@ -0,0 +1,73 @@
+// Container widths
+//
+// Set the container width, and override it for fixed navbars in media queries.
+
+@if $enable-grid-classes {
+  // Single container class with breakpoint max-widths
+  .container,
+  // 100% wide container at all breakpoints
+  .container-fluid {
+    @include make-container();
+  }
+
+  // Responsive containers that are 100% wide until a breakpoint
+  @each $breakpoint, $container-max-width in $container-max-widths {
+    .container-#{$breakpoint} {
+      @extend .container-fluid;
+    }
+
+    @include media-breakpoint-up($breakpoint, $grid-breakpoints) {
+      %responsive-container-#{$breakpoint} {
+        max-width: $container-max-width;
+      }
+
+      // Extend each breakpoint which is smaller or equal to the current breakpoint
+      $extend-breakpoint: true;
+
+      @each $name, $width in $grid-breakpoints {
+        @if ($extend-breakpoint) {
+          .container#{breakpoint-infix($name, $grid-breakpoints)} {
+            @extend %responsive-container-#{$breakpoint};
+          }
+
+          // Once the current breakpoint is reached, stop extending
+          @if ($breakpoint == $name) {
+            $extend-breakpoint: false;
+          }
+        }
+      }
+    }
+  }
+}
+
+
+// Row
+//
+// Rows contain your columns.
+
+@if $enable-grid-classes {
+  .row {
+    @include make-row();
+  }
+
+  // Remove the negative margin from default .row, then the horizontal padding
+  // from all immediate children columns (to prevent runaway style inheritance).
+  .no-gutters {
+    margin-right: 0;
+    margin-left: 0;
+
+    > .col,
+    > [class*="col-"] {
+      padding-right: 0;
+      padding-left: 0;
+    }
+  }
+}
+
+// Columns
+//
+// Common styles for small and large grid columns
+
+@if $enable-grid-classes {
+  @include make-grid-columns();
+}
diff --git a/css/bootstrap/_images.scss b/css/bootstrap/_images.scss
new file mode 100644
index 0000000..3d6a101
--- /dev/null
+++ b/css/bootstrap/_images.scss
@@ -0,0 +1,42 @@
+// Responsive images (ensure images don't scale beyond their parents)
+//
+// This is purposefully opt-in via an explicit class rather than being the default for all `<img>`s.
+// We previously tried the "images are responsive by default" approach in Bootstrap v2,
+// and abandoned it in Bootstrap v3 because it breaks lots of third-party widgets (including Google Maps)
+// which weren't expecting the images within themselves to be involuntarily resized.
+// See also https://github.com/twbs/bootstrap/issues/18178
+.img-fluid {
+  @include img-fluid();
+}
+
+
+// Image thumbnails
+.img-thumbnail {
+  padding: $thumbnail-padding;
+  background-color: $thumbnail-bg;
+  border: $thumbnail-border-width solid $thumbnail-border-color;
+  @include border-radius($thumbnail-border-radius);
+  @include box-shadow($thumbnail-box-shadow);
+
+  // Keep them at most 100% wide
+  @include img-fluid();
+}
+
+//
+// Figures
+//
+
+.figure {
+  // Ensures the caption's text aligns with the image.
+  display: inline-block;
+}
+
+.figure-img {
+  margin-bottom: $spacer * .5;
+  line-height: 1;
+}
+
+.figure-caption {
+  @include font-size($figure-caption-font-size);
+  color: $figure-caption-color;
+}
diff --git a/css/bootstrap/_input-group.scss b/css/bootstrap/_input-group.scss
new file mode 100644
index 0000000..5acedd6
--- /dev/null
+++ b/css/bootstrap/_input-group.scss
@@ -0,0 +1,211 @@
+// stylelint-disable selector-no-qualifying-type
+
+//
+// Base styles
+//
+
+.input-group {
+  position: relative;
+  display: flex;
+  flex-wrap: wrap; // For form validation feedback
+  align-items: stretch;
+  width: 100%;
+
+  > .form-control,
+  > .form-control-plaintext,
+  > .custom-select,
+  > .custom-file {
+    position: relative; // For focus state's z-index
+    flex: 1 1 auto;
+    width: 1%;
+    min-width: 0; // https://stackoverflow.com/questions/36247140/why-dont-flex-items-shrink-past-content-size
+    margin-bottom: 0;
+
+    + .form-control,
+    + .custom-select,
+    + .custom-file {
+      margin-left: -$input-border-width;
+    }
+  }
+
+  // Bring the "active" form control to the top of surrounding elements
+  > .form-control:focus,
+  > .custom-select:focus,
+  > .custom-file .custom-file-input:focus ~ .custom-file-label {
+    z-index: 3;
+  }
+
+  // Bring the custom file input above the label
+  > .custom-file .custom-file-input:focus {
+    z-index: 4;
+  }
+
+  > .form-control,
+  > .custom-select {
+    &:not(:first-child) { @include border-left-radius(0); }
+  }
+
+  // Custom file inputs have more complex markup, thus requiring different
+  // border-radius overrides.
+  > .custom-file {
+    display: flex;
+    align-items: center;
+
+    &:not(:last-child) .custom-file-label,
+    &:not(:last-child) .custom-file-label::after { @include border-right-radius(0); }
+    &:not(:first-child) .custom-file-label { @include border-left-radius(0); }
+  }
+
+  &:not(.has-validation) {
+    > .form-control:not(:last-child),
+    > .custom-select:not(:last-child),
+    > .custom-file:not(:last-child) .custom-file-label,
+    > .custom-file:not(:last-child) .custom-file-label::after {
+      @include border-right-radius(0);
+    }
+  }
+
+  &.has-validation {
+    > .form-control:nth-last-child(n + 3),
+    > .custom-select:nth-last-child(n + 3),
+    > .custom-file:nth-last-child(n + 3) .custom-file-label,
+    > .custom-file:nth-last-child(n + 3) .custom-file-label::after {
+      @include border-right-radius(0);
+    }
+  }
+}
+
+
+// Prepend and append
+//
+// While it requires one extra layer of HTML for each, dedicated prepend and
+// append elements allow us to 1) be less clever, 2) simplify our selectors, and
+// 3) support HTML5 form validation.
+
+.input-group-prepend,
+.input-group-append {
+  display: flex;
+
+  // Ensure buttons are always above inputs for more visually pleasing borders.
+  // This isn't needed for `.input-group-text` since it shares the same border-color
+  // as our inputs.
+  .btn {
+    position: relative;
+    z-index: 2;
+
+    &:focus {
+      z-index: 3;
+    }
+  }
+
+  .btn + .btn,
+  .btn + .input-group-text,
+  .input-group-text + .input-group-text,
+  .input-group-text + .btn {
+    margin-left: -$input-border-width;
+  }
+}
+
+.input-group-prepend { margin-right: -$input-border-width; }
+.input-group-append { margin-left: -$input-border-width; }
+
+
+// Textual addons
+//
+// Serves as a catch-all element for any text or radio/checkbox input you wish
+// to prepend or append to an input.
+
+.input-group-text {
+  display: flex;
+  align-items: center;
+  padding: $input-padding-y $input-padding-x;
+  margin-bottom: 0; // Allow use of <label> elements by overriding our default margin-bottom
+  @include font-size($input-font-size); // Match inputs
+  font-weight: $font-weight-normal;
+  line-height: $input-line-height;
+  color: $input-group-addon-color;
+  text-align: center;
+  white-space: nowrap;
+  background-color: $input-group-addon-bg;
+  border: $input-border-width solid $input-group-addon-border-color;
+  @include border-radius($input-border-radius);
+
+  // Nuke default margins from checkboxes and radios to vertically center within.
+  input[type="radio"],
+  input[type="checkbox"] {
+    margin-top: 0;
+  }
+}
+
+
+// Sizing
+//
+// Remix the default form control sizing classes into new ones for easier
+// manipulation.
+
+.input-group-lg > .form-control:not(textarea),
+.input-group-lg > .custom-select {
+  height: $input-height-lg;
+}
+
+.input-group-lg > .form-control,
+.input-group-lg > .custom-select,
+.input-group-lg > .input-group-prepend > .input-group-text,
+.input-group-lg > .input-group-append > .input-group-text,
+.input-group-lg > .input-group-prepend > .btn,
+.input-group-lg > .input-group-append > .btn {
+  padding: $input-padding-y-lg $input-padding-x-lg;
+  @include font-size($input-font-size-lg);
+  line-height: $input-line-height-lg;
+  @include border-radius($input-border-radius-lg);
+}
+
+.input-group-sm > .form-control:not(textarea),
+.input-group-sm > .custom-select {
+  height: $input-height-sm;
+}
+
+.input-group-sm > .form-control,
+.input-group-sm > .custom-select,
+.input-group-sm > .input-group-prepend > .input-group-text,
+.input-group-sm > .input-group-append > .input-group-text,
+.input-group-sm > .input-group-prepend > .btn,
+.input-group-sm > .input-group-append > .btn {
+  padding: $input-padding-y-sm $input-padding-x-sm;
+  @include font-size($input-font-size-sm);
+  line-height: $input-line-height-sm;
+  @include border-radius($input-border-radius-sm);
+}
+
+.input-group-lg > .custom-select,
+.input-group-sm > .custom-select {
+  padding-right: $custom-select-padding-x + $custom-select-indicator-padding;
+}
+
+
+// Prepend and append rounded corners
+//
+// These rulesets must come after the sizing ones to properly override sm and lg
+// border-radius values when extending. They're more specific than we'd like
+// with the `.input-group >` part, but without it, we cannot override the sizing.
+
+
+.input-group > .input-group-prepend > .btn,
+.input-group > .input-group-prepend > .input-group-text,
+.input-group:not(.has-validation) > .input-group-append:not(:last-child) > .btn,
+.input-group:not(.has-validation) > .input-group-append:not(:last-child) > .input-group-text,
+.input-group.has-validation > .input-group-append:nth-last-child(n + 3) > .btn,
+.input-group.has-validation > .input-group-append:nth-last-child(n + 3) > .input-group-text,
+.input-group > .input-group-append:last-child > .btn:not(:last-child):not(.dropdown-toggle),
+.input-group > .input-group-append:last-child > .input-group-text:not(:last-child) {
+  @include border-right-radius(0);
+}
+
+.input-group > .input-group-append > .btn,
+.input-group > .input-group-append > .input-group-text,
+.input-group > .input-group-prepend:not(:first-child) > .btn,
+.input-group > .input-group-prepend:not(:first-child) > .input-group-text,
+.input-group > .input-group-prepend:first-child > .btn:not(:first-child),
+.input-group > .input-group-prepend:first-child > .input-group-text:not(:first-child) {
+  @include border-left-radius(0);
+}
diff --git a/css/bootstrap/_jumbotron.scss b/css/bootstrap/_jumbotron.scss
new file mode 100644
index 0000000..2c617ed
--- /dev/null
+++ b/css/bootstrap/_jumbotron.scss
@@ -0,0 +1,17 @@
+.jumbotron {
+  padding: $jumbotron-padding ($jumbotron-padding * .5);
+  margin-bottom: $jumbotron-padding;
+  color: $jumbotron-color;
+  background-color: $jumbotron-bg;
+  @include border-radius($border-radius-lg);
+
+  @include media-breakpoint-up(sm) {
+    padding: ($jumbotron-padding * 2) $jumbotron-padding;
+  }
+}
+
+.jumbotron-fluid {
+  padding-right: 0;
+  padding-left: 0;
+  @include border-radius(0);
+}
diff --git a/css/bootstrap/_list-group.scss b/css/bootstrap/_list-group.scss
new file mode 100644
index 0000000..ec25ba8
--- /dev/null
+++ b/css/bootstrap/_list-group.scss
@@ -0,0 +1,154 @@
+// Base class
+//
+// Easily usable on <ul>, <ol>, or <div>.
+
+.list-group {
+  display: flex;
+  flex-direction: column;
+
+  // No need to set list-style: none; since .list-group-item is block level
+  padding-left: 0; // reset padding because ul and ol
+  margin-bottom: 0;
+  @include border-radius($list-group-border-radius);
+}
+
+
+// Interactive list items
+//
+// Use anchor or button elements instead of `li`s or `div`s to create interactive
+// list items. Includes an extra `.active` modifier class for selected items.
+
+.list-group-item-action {
+  width: 100%; // For `<button>`s (anchors become 100% by default though)
+  color: $list-group-action-color;
+  text-align: inherit; // For `<button>`s (anchors inherit)
+
+  // Hover state
+  @include hover-focus() {
+    z-index: 1; // Place hover/focus items above their siblings for proper border styling
+    color: $list-group-action-hover-color;
+    text-decoration: none;
+    background-color: $list-group-hover-bg;
+  }
+
+  &:active {
+    color: $list-group-action-active-color;
+    background-color: $list-group-action-active-bg;
+  }
+}
+
+
+// Individual list items
+//
+// Use on `li`s or `div`s within the `.list-group` parent.
+
+.list-group-item {
+  position: relative;
+  display: block;
+  padding: $list-group-item-padding-y $list-group-item-padding-x;
+  color: $list-group-color;
+  text-decoration: if($link-decoration == none, null, none);
+  background-color: $list-group-bg;
+  border: $list-group-border-width solid $list-group-border-color;
+
+  &:first-child {
+    @include border-top-radius(inherit);
+  }
+
+  &:last-child {
+    @include border-bottom-radius(inherit);
+  }
+
+  &.disabled,
+  &:disabled {
+    color: $list-group-disabled-color;
+    pointer-events: none;
+    background-color: $list-group-disabled-bg;
+  }
+
+  // Include both here for `<a>`s and `<button>`s
+  &.active {
+    z-index: 2; // Place active items above their siblings for proper border styling
+    color: $list-group-active-color;
+    background-color: $list-group-active-bg;
+    border-color: $list-group-active-border-color;
+  }
+
+  & + & {
+    border-top-width: 0;
+
+    &.active {
+      margin-top: -$list-group-border-width;
+      border-top-width: $list-group-border-width;
+    }
+  }
+}
+
+
+// Horizontal
+//
+// Change the layout of list group items from vertical (default) to horizontal.
+
+@each $breakpoint in map-keys($grid-breakpoints) {
+  @include media-breakpoint-up($breakpoint) {
+    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);
+
+    .list-group-horizontal#{$infix} {
+      flex-direction: row;
+
+      > .list-group-item {
+        &:first-child {
+          @include border-bottom-left-radius($list-group-border-radius);
+          @include border-top-right-radius(0);
+        }
+
+        &:last-child {
+          @include border-top-right-radius($list-group-border-radius);
+          @include border-bottom-left-radius(0);
+        }
+
+        &.active {
+          margin-top: 0;
+        }
+
+        + .list-group-item {
+          border-top-width: $list-group-border-width;
+          border-left-width: 0;
+
+          &.active {
+            margin-left: -$list-group-border-width;
+            border-left-width: $list-group-border-width;
+          }
+        }
+      }
+    }
+  }
+}
+
+
+// Flush list items
+//
+// Remove borders and border-radius to keep list group items edge-to-edge. Most
+// useful within other components (e.g., cards).
+
+.list-group-flush {
+  @include border-radius(0);
+
+  > .list-group-item {
+    border-width: 0 0 $list-group-border-width;
+
+    &:last-child {
+      border-bottom-width: 0;
+    }
+  }
+}
+
+
+// Contextual variants
+//
+// Add modifier classes to change text and background color on individual items.
+// Organizationally, this must come after the `:hover` states.
+
+@each $color, $value in $theme-colors {
+  @include list-group-item-variant($color, theme-color-level($color, -9), theme-color-level($color, 6));
+}
diff --git a/css/bootstrap/_media.scss b/css/bootstrap/_media.scss
new file mode 100644
index 0000000..b573052
--- /dev/null
+++ b/css/bootstrap/_media.scss
@@ -0,0 +1,8 @@
+.media {
+  display: flex;
+  align-items: flex-start;
+}
+
+.media-body {
+  flex: 1;
+}
diff --git a/css/bootstrap/_mixins.scss b/css/bootstrap/_mixins.scss
new file mode 100644
index 0000000..7e7a23d
--- /dev/null
+++ b/css/bootstrap/_mixins.scss
@@ -0,0 +1,47 @@
+// Toggles
+//
+// Used in conjunction with global variables to enable certain theme features.
+
+// Vendor
+@import "vendor/rfs";
+
+// Deprecate
+@import "mixins/deprecate";
+
+// Utilities
+@import "mixins/breakpoints";
+@import "mixins/hover";
+@import "mixins/image";
+@import "mixins/badge";
+@import "mixins/resize";
+@import "mixins/screen-reader";
+@import "mixins/size";
+@import "mixins/reset-text";
+@import "mixins/text-emphasis";
+@import "mixins/text-hide";
+@import "mixins/text-truncate";
+@import "mixins/visibility";
+
+// Components
+@import "mixins/alert";
+@import "mixins/buttons";
+@import "mixins/caret";
+@import "mixins/pagination";
+@import "mixins/lists";
+@import "mixins/list-group";
+@import "mixins/nav-divider";
+@import "mixins/forms";
+@import "mixins/table-row";
+
+// Skins
+@import "mixins/background-variant";
+@import "mixins/border-radius";
+@import "mixins/box-shadow";
+@import "mixins/gradients";
+@import "mixins/transition";
+
+// Layout
+@import "mixins/clearfix";
+@import "mixins/grid-framework";
+@import "mixins/grid";
+@import "mixins/float";
diff --git a/css/bootstrap/_modal.scss b/css/bootstrap/_modal.scss
new file mode 100644
index 0000000..4d01788
--- /dev/null
+++ b/css/bootstrap/_modal.scss
@@ -0,0 +1,240 @@
+// .modal-open      - body class for killing the scroll
+// .modal           - container to scroll within
+// .modal-dialog    - positioning shell for the actual modal
+// .modal-content   - actual modal w/ bg and corners and stuff
+
+
+.modal-open {
+  // Kill the scroll on the body
+  overflow: hidden;
+
+  .modal {
+    overflow-x: hidden;
+    overflow-y: auto;
+  }
+}
+
+// Container that the modal scrolls within
+.modal {
+  position: fixed;
+  top: 0;
+  left: 0;
+  z-index: $zindex-modal;
+  display: none;
+  width: 100%;
+  height: 100%;
+  overflow: hidden;
+  // Prevent Chrome on Windows from adding a focus outline. For details, see
+  // https://github.com/twbs/bootstrap/pull/10951.
+  outline: 0;
+  // We deliberately don't use `-webkit-overflow-scrolling: touch;` due to a
+  // gnarly iOS Safari bug: https://bugs.webkit.org/show_bug.cgi?id=158342
+  // See also https://github.com/twbs/bootstrap/issues/17695
+}
+
+// Shell div to position the modal with bottom padding
+.modal-dialog {
+  position: relative;
+  width: auto;
+  margin: $modal-dialog-margin;
+  // allow clicks to pass through for custom click handling to close modal
+  pointer-events: none;
+
+  // When fading in the modal, animate it to slide down
+  .modal.fade & {
+    @include transition($modal-transition);
+    transform: $modal-fade-transform;
+  }
+  .modal.show & {
+    transform: $modal-show-transform;
+  }
+
+  // When trying to close, animate focus to scale
+  .modal.modal-static & {
+    transform: $modal-scale-transform;
+  }
+}
+
+.modal-dialog-scrollable {
+  display: flex; // IE10/11
+  max-height: subtract(100%, $modal-dialog-margin * 2);
+
+  .modal-content {
+    max-height: subtract(100vh, $modal-dialog-margin * 2); // IE10/11
+    overflow: hidden;
+  }
+
+  .modal-header,
+  .modal-footer {
+    flex-shrink: 0;
+  }
+
+  .modal-body {
+    overflow-y: auto;
+  }
+}
+
+.modal-dialog-centered {
+  display: flex;
+  align-items: center;
+  min-height: subtract(100%, $modal-dialog-margin * 2);
+
+  // Ensure `modal-dialog-centered` extends the full height of the view (IE10/11)
+  &::before {
+    display: block; // IE10
+    height: subtract(100vh, $modal-dialog-margin * 2);
+    height: min-content; // Reset height to 0 except on IE
+    content: "";
+  }
+
+  // Ensure `.modal-body` shows scrollbar (IE10/11)
+  &.modal-dialog-scrollable {
+    flex-direction: column;
+    justify-content: center;
+    height: 100%;
+
+    .modal-content {
+      max-height: none;
+    }
+
+    &::before {
+      content: none;
+    }
+  }
+}
+
+// Actual modal
+.modal-content {
+  position: relative;
+  display: flex;
+  flex-direction: column;
+  width: 100%; // Ensure `.modal-content` extends the full width of the parent `.modal-dialog`
+  // counteract the pointer-events: none; in the .modal-dialog
+  color: $modal-content-color;
+  pointer-events: auto;
+  background-color: $modal-content-bg;
+  background-clip: padding-box;
+  border: $modal-content-border-width solid $modal-content-border-color;
+  @include border-radius($modal-content-border-radius);
+  @include box-shadow($modal-content-box-shadow-xs);
+  // Remove focus outline from opened modal
+  outline: 0;
+}
+
+// Modal background
+.modal-backdrop {
+  position: fixed;
+  top: 0;
+  left: 0;
+  z-index: $zindex-modal-backdrop;
+  width: 100vw;
+  height: 100vh;
+  background-color: $modal-backdrop-bg;
+
+  // Fade for backdrop
+  &.fade { opacity: 0; }
+  &.show { opacity: $modal-backdrop-opacity; }
+}
+
+// Modal header
+// Top section of the modal w/ title and dismiss
+.modal-header {
+  display: flex;
+  align-items: flex-start; // so the close btn always stays on the upper right corner
+  justify-content: space-between; // Put modal header elements (title and dismiss) on opposite ends
+  padding: $modal-header-padding;
+  border-bottom: $modal-header-border-width solid $modal-header-border-color;
+  @include border-top-radius($modal-content-inner-border-radius);
+
+  .close {
+    padding: $modal-header-padding;
+    // auto on the left force icon to the right even when there is no .modal-title
+    margin: (-$modal-header-padding-y) (-$modal-header-padding-x) (-$modal-header-padding-y) auto;
+  }
+}
+
+// Title text within header
+.modal-title {
+  margin-bottom: 0;
+  line-height: $modal-title-line-height;
+}
+
+// Modal body
+// Where all modal content resides (sibling of .modal-header and .modal-footer)
+.modal-body {
+  position: relative;
+  // Enable `flex-grow: 1` so that the body take up as much space as possible
+  // when there should be a fixed height on `.modal-dialog`.
+  flex: 1 1 auto;
+  padding: $modal-inner-padding;
+}
+
+// Footer (for actions)
+.modal-footer {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center; // vertically center
+  justify-content: flex-end; // Right align buttons with flex property because text-align doesn't work on flex items
+  padding: $modal-inner-padding - $modal-footer-margin-between * .5;
+  border-top: $modal-footer-border-width solid $modal-footer-border-color;
+  @include border-bottom-radius($modal-content-inner-border-radius);
+
+  // Place margin between footer elements
+  // This solution is far from ideal because of the universal selector usage,
+  // but is needed to fix https://github.com/twbs/bootstrap/issues/24800
+  > * {
+    margin: $modal-footer-margin-between * .5;
+  }
+}
+
+// Measure scrollbar width for padding body during modal show/hide
+.modal-scrollbar-measure {
+  position: absolute;
+  top: -9999px;
+  width: 50px;
+  height: 50px;
+  overflow: scroll;
+}
+
+// Scale up the modal
+@include media-breakpoint-up(sm) {
+  // Automatically set modal's width for larger viewports
+  .modal-dialog {
+    max-width: $modal-md;
+    margin: $modal-dialog-margin-y-sm-up auto;
+  }
+
+  .modal-dialog-scrollable {
+    max-height: subtract(100%, $modal-dialog-margin-y-sm-up * 2);
+
+    .modal-content {
+      max-height: subtract(100vh, $modal-dialog-margin-y-sm-up * 2);
+    }
+  }
+
+  .modal-dialog-centered {
+    min-height: subtract(100%, $modal-dialog-margin-y-sm-up * 2);
+
+    &::before {
+      height: subtract(100vh, $modal-dialog-margin-y-sm-up * 2);
+      height: min-content;
+    }
+  }
+
+  .modal-content {
+    @include box-shadow($modal-content-box-shadow-sm-up);
+  }
+
+  .modal-sm { max-width: $modal-sm; }
+}
+
+@include media-breakpoint-up(lg) {
+  .modal-lg,
+  .modal-xl {
+    max-width: $modal-lg;
+  }
+}
+
+@include media-breakpoint-up(xl) {
+  .modal-xl { max-width: $modal-xl; }
+}
diff --git a/css/bootstrap/_nav.scss b/css/bootstrap/_nav.scss
new file mode 100644
index 0000000..fad684e
--- /dev/null
+++ b/css/bootstrap/_nav.scss
@@ -0,0 +1,120 @@
+// Base class
+//
+// Kickstart any navigation component with a set of style resets. Works with
+// `<nav>`s, `<ul>`s or `<ol>`s.
+
+.nav {
+  display: flex;
+  flex-wrap: wrap;
+  padding-left: 0;
+  margin-bottom: 0;
+  list-style: none;
+}
+
+.nav-link {
+  display: block;
+  padding: $nav-link-padding-y $nav-link-padding-x;
+  text-decoration: if($link-decoration == none, null, none);
+
+  @include hover-focus() {
+    text-decoration: none;
+  }
+
+  // Disabled state lightens text
+  &.disabled {
+    color: $nav-link-disabled-color;
+    pointer-events: none;
+    cursor: default;
+  }
+}
+
+//
+// Tabs
+//
+
+.nav-tabs {
+  border-bottom: $nav-tabs-border-width solid $nav-tabs-border-color;
+
+  .nav-link {
+    margin-bottom: -$nav-tabs-border-width;
+    border: $nav-tabs-border-width solid transparent;
+    @include border-top-radius($nav-tabs-border-radius);
+
+    @include hover-focus() {
+      border-color: $nav-tabs-link-hover-border-color;
+    }
+
+    &.disabled {
+      color: $nav-link-disabled-color;
+      background-color: transparent;
+      border-color: transparent;
+    }
+  }
+
+  .nav-link.active,
+  .nav-item.show .nav-link {
+    color: $nav-tabs-link-active-color;
+    background-color: $nav-tabs-link-active-bg;
+    border-color: $nav-tabs-link-active-border-color;
+  }
+
+  .dropdown-menu {
+    // Make dropdown border overlap tab border
+    margin-top: -$nav-tabs-border-width;
+    // Remove the top rounded corners here since there is a hard edge above the menu
+    @include border-top-radius(0);
+  }
+}
+
+
+//
+// Pills
+//
+
+.nav-pills {
+  .nav-link {
+    @include border-radius($nav-pills-border-radius);
+  }
+
+  .nav-link.active,
+  .show > .nav-link {
+    color: $nav-pills-link-active-color;
+    background-color: $nav-pills-link-active-bg;
+  }
+}
+
+
+//
+// Justified variants
+//
+
+.nav-fill {
+  > .nav-link,
+  .nav-item {
+    flex: 1 1 auto;
+    text-align: center;
+  }
+}
+
+.nav-justified {
+  > .nav-link,
+  .nav-item {
+    flex-basis: 0;
+    flex-grow: 1;
+    text-align: center;
+  }
+}
+
+
+// Tabbable tabs
+//
+// Hide tabbable panes to start, show them when `.active`
+
+.tab-content {
+  > .tab-pane {
+    display: none;
+  }
+  > .active {
+    display: block;
+  }
+}
diff --git a/css/bootstrap/_navbar.scss b/css/bootstrap/_navbar.scss
new file mode 100644
index 0000000..cf5b667
--- /dev/null
+++ b/css/bootstrap/_navbar.scss
@@ -0,0 +1,332 @@
+// Contents
+//
+// Navbar
+// Navbar brand
+// Navbar nav
+// Navbar text
+// Navbar divider
+// Responsive navbar
+// Navbar position
+// Navbar themes
+
+
+// Navbar
+//
+// Provide a static navbar from which we expand to create full-width, fixed, and
+// other navbar variations.
+
+.navbar {
+  position: relative;
+  display: flex;
+  flex-wrap: wrap; // allow us to do the line break for collapsing content
+  align-items: center;
+  justify-content: space-between; // space out brand from logo
+  padding: $navbar-padding-y $navbar-padding-x;
+
+  // Because flex properties aren't inherited, we need to redeclare these first
+  // few properties so that content nested within behave properly.
+  %container-flex-properties {
+    display: flex;
+    flex-wrap: wrap;
+    align-items: center;
+    justify-content: space-between;
+  }
+
+  .container,
+  .container-fluid {
+    @extend %container-flex-properties;
+  }
+
+  @each $breakpoint, $container-max-width in $container-max-widths {
+    > .container#{breakpoint-infix($breakpoint, $container-max-widths)} {
+      @extend %container-flex-properties;
+    }
+  }
+}
+
+
+// Navbar brand
+//
+// Used for brand, project, or site names.
+
+.navbar-brand {
+  display: inline-block;
+  padding-top: $navbar-brand-padding-y;
+  padding-bottom: $navbar-brand-padding-y;
+  margin-right: $navbar-padding-x;
+  @include font-size($navbar-brand-font-size);
+  line-height: inherit;
+  white-space: nowrap;
+
+  @include hover-focus() {
+    text-decoration: none;
+  }
+}
+
+
+// Navbar nav
+//
+// Custom navbar navigation (doesn't require `.nav`, but does make use of `.nav-link`).
+
+.navbar-nav {
+  display: flex;
+  flex-direction: column; // cannot use `inherit` to get the `.navbar`s value
+  padding-left: 0;
+  margin-bottom: 0;
+  list-style: none;
+
+  .nav-link {
+    padding-right: 0;
+    padding-left: 0;
+  }
+
+  .dropdown-menu {
+    position: static;
+    float: none;
+  }
+}
+
+
+// Navbar text
+//
+//
+
+.navbar-text {
+  display: inline-block;
+  padding-top: $nav-link-padding-y;
+  padding-bottom: $nav-link-padding-y;
+}
+
+
+// Responsive navbar
+//
+// Custom styles for responsive collapsing and toggling of navbar contents.
+// Powered by the collapse Bootstrap JavaScript plugin.
+
+// When collapsed, prevent the toggleable navbar contents from appearing in
+// the default flexbox row orientation. Requires the use of `flex-wrap: wrap`
+// on the `.navbar` parent.
+.navbar-collapse {
+  flex-basis: 100%;
+  flex-grow: 1;
+  // For always expanded or extra full navbars, ensure content aligns itself
+  // properly vertically. Can be easily overridden with flex utilities.
+  align-items: center;
+}
+
+// Button for toggling the navbar when in its collapsed state
+.navbar-toggler {
+  padding: $navbar-toggler-padding-y $navbar-toggler-padding-x;
+  @include font-size($navbar-toggler-font-size);
+  line-height: 1;
+  background-color: transparent; // remove default button style
+  border: $border-width solid transparent; // remove default button style
+  @include border-radius($navbar-toggler-border-radius);
+
+  @include hover-focus() {
+    text-decoration: none;
+  }
+}
+
+// Keep as a separate element so folks can easily override it with another icon
+// or image file as needed.
+.navbar-toggler-icon {
+  display: inline-block;
+  width: 1.5em;
+  height: 1.5em;
+  vertical-align: middle;
+  content: "";
+  background: 50% / 100% 100% no-repeat;
+}
+
+.navbar-nav-scroll {
+  max-height: $navbar-nav-scroll-max-height;
+  overflow-y: auto;
+}
+
+// Generate series of `.navbar-expand-*` responsive classes for configuring
+// where your navbar collapses.
+.navbar-expand {
+  @each $breakpoint in map-keys($grid-breakpoints) {
+    $next: breakpoint-next($breakpoint, $grid-breakpoints);
+    $infix: breakpoint-infix($next, $grid-breakpoints);
+
+    &#{$infix} {
+      @include media-breakpoint-down($breakpoint) {
+        %container-navbar-expand-#{$breakpoint} {
+          padding-right: 0;
+          padding-left: 0;
+        }
+
+        > .container,
+        > .container-fluid {
+          @extend %container-navbar-expand-#{$breakpoint};
+        }
+
+        @each $size, $container-max-width in $container-max-widths {
+          > .container#{breakpoint-infix($size, $container-max-widths)} {
+            @extend %container-navbar-expand-#{$breakpoint};
+          }
+        }
+      }
+
+      @include media-breakpoint-up($next) {
+        flex-flow: row nowrap;
+        justify-content: flex-start;
+
+        .navbar-nav {
+          flex-direction: row;
+
+          .dropdown-menu {
+            position: absolute;
+          }
+
+          .nav-link {
+            padding-right: $navbar-nav-link-padding-x;
+            padding-left: $navbar-nav-link-padding-x;
+          }
+        }
+
+        // For nesting containers, have to redeclare for alignment purposes
+        %container-nesting-#{$breakpoint} {
+          flex-wrap: nowrap;
+        }
+
+        > .container,
+        > .container-fluid {
+          @extend %container-nesting-#{$breakpoint};
+        }
+
+        @each $size, $container-max-width in $container-max-widths {
+          > .container#{breakpoint-infix($size, $container-max-widths)} {
+            @extend %container-nesting-#{$breakpoint};
+          }
+        }
+
+        .navbar-nav-scroll {
+          overflow: visible;
+        }
+
+        .navbar-collapse {
+          display: flex !important; // stylelint-disable-line declaration-no-important
+
+          // Changes flex-bases to auto because of an IE10 bug
+          flex-basis: auto;
+        }
+
+        .navbar-toggler {
+          display: none;
+        }
+      }
+    }
+  }
+}
+
+
+// Navbar themes
+//
+// Styles for switching between navbars with light or dark background.
+
+// Dark links against a light background
+.navbar-light {
+  .navbar-brand {
+    color: $navbar-light-brand-color;
+
+    @include hover-focus() {
+      color: $navbar-light-brand-hover-color;
+    }
+  }
+
+  .navbar-nav {
+    .nav-link {
+      color: $navbar-light-color;
+
+      @include hover-focus() {
+        color: $navbar-light-hover-color;
+      }
+
+      &.disabled {
+        color: $navbar-light-disabled-color;
+      }
+    }
+
+    .show > .nav-link,
+    .active > .nav-link,
+    .nav-link.show,
+    .nav-link.active {
+      color: $navbar-light-active-color;
+    }
+  }
+
+  .navbar-toggler {
+    color: $navbar-light-color;
+    border-color: $navbar-light-toggler-border-color;
+  }
+
+  .navbar-toggler-icon {
+    background-image: escape-svg($navbar-light-toggler-icon-bg);
+  }
+
+  .navbar-text {
+    color: $navbar-light-color;
+    a {
+      color: $navbar-light-active-color;
+
+      @include hover-focus() {
+        color: $navbar-light-active-color;
+      }
+    }
+  }
+}
+
+// White links against a dark background
+.navbar-dark {
+  .navbar-brand {
+    color: $navbar-dark-brand-color;
+
+    @include hover-focus() {
+      color: $navbar-dark-brand-hover-color;
+    }
+  }
+
+  .navbar-nav {
+    .nav-link {
+      color: $navbar-dark-color;
+
+      @include hover-focus() {
+        color: $navbar-dark-hover-color;
+      }
+
+      &.disabled {
+        color: $navbar-dark-disabled-color;
+      }
+    }
+
+    .show > .nav-link,
+    .active > .nav-link,
+    .nav-link.show,
+    .nav-link.active {
+      color: $navbar-dark-active-color;
+    }
+  }
+
+  .navbar-toggler {
+    color: $navbar-dark-color;
+    border-color: $navbar-dark-toggler-border-color;
+  }
+
+  .navbar-toggler-icon {
+    background-image: escape-svg($navbar-dark-toggler-icon-bg);
+  }
+
+  .navbar-text {
+    color: $navbar-dark-color;
+    a {
+      color: $navbar-dark-active-color;
+
+      @include hover-focus() {
+        color: $navbar-dark-active-color;
+      }
+    }
+  }
+}
diff --git a/css/bootstrap/_pagination.scss b/css/bootstrap/_pagination.scss
new file mode 100644
index 0000000..9313cc5
--- /dev/null
+++ b/css/bootstrap/_pagination.scss
@@ -0,0 +1,74 @@
+.pagination {
+  display: flex;
+  @include list-unstyled();
+  @include border-radius();
+}
+
+.page-link {
+  position: relative;
+  display: block;
+  padding: $pagination-padding-y $pagination-padding-x;
+  margin-left: -$pagination-border-width;
+  line-height: $pagination-line-height;
+  color: $pagination-color;
+  text-decoration: if($link-decoration == none, null, none);
+  background-color: $pagination-bg;
+  border: $pagination-border-width solid $pagination-border-color;
+
+  &:hover {
+    z-index: 2;
+    color: $pagination-hover-color;
+    text-decoration: none;
+    background-color: $pagination-hover-bg;
+    border-color: $pagination-hover-border-color;
+  }
+
+  &:focus {
+    z-index: 3;
+    outline: $pagination-focus-outline;
+    box-shadow: $pagination-focus-box-shadow;
+  }
+}
+
+.page-item {
+  &:first-child {
+    .page-link {
+      margin-left: 0;
+      @include border-left-radius($border-radius);
+    }
+  }
+  &:last-child {
+    .page-link {
+      @include border-right-radius($border-radius);
+    }
+  }
+
+  &.active .page-link {
+    z-index: 3;
+    color: $pagination-active-color;
+    background-color: $pagination-active-bg;
+    border-color: $pagination-active-border-color;
+  }
+
+  &.disabled .page-link {
+    color: $pagination-disabled-color;
+    pointer-events: none;
+    // Opinionated: remove the "hand" cursor set previously for .page-link
+    cursor: auto;
+    background-color: $pagination-disabled-bg;
+    border-color: $pagination-disabled-border-color;
+  }
+}
+
+
+//
+// Sizing
+//
+
+.pagination-lg {
+  @include pagination-size($pagination-padding-y-lg, $pagination-padding-x-lg, $font-size-lg, $line-height-lg, $pagination-border-radius-lg);
+}
+
+.pagination-sm {
+  @include pagination-size($pagination-padding-y-sm, $pagination-padding-x-sm, $font-size-sm, $line-height-sm, $pagination-border-radius-sm);
+}
diff --git a/css/bootstrap/_popover.scss b/css/bootstrap/_popover.scss
new file mode 100644
index 0000000..c7106a8
--- /dev/null
+++ b/css/bootstrap/_popover.scss
@@ -0,0 +1,170 @@
+.popover {
+  position: absolute;
+  top: 0;
+  left: 0;
+  z-index: $zindex-popover;
+  display: block;
+  max-width: $popover-max-width;
+  // Our parent element can be arbitrary since tooltips are by default inserted as a sibling of their target element.
+  // So reset our font and text properties to avoid inheriting weird values.
+  @include reset-text();
+  @include font-size($popover-font-size);
+  // Allow breaking very long words so they don't overflow the popover's bounds
+  word-wrap: break-word;
+  background-color: $popover-bg;
+  background-clip: padding-box;
+  border: $popover-border-width solid $popover-border-color;
+  @include border-radius($popover-border-radius);
+  @include box-shadow($popover-box-shadow);
+
+  .arrow {
+    position: absolute;
+    display: block;
+    width: $popover-arrow-width;
+    height: $popover-arrow-height;
+    margin: 0 $popover-border-radius;
+
+    &::before,
+    &::after {
+      position: absolute;
+      display: block;
+      content: "";
+      border-color: transparent;
+      border-style: solid;
+    }
+  }
+}
+
+.bs-popover-top {
+  margin-bottom: $popover-arrow-height;
+
+  > .arrow {
+    bottom: subtract(-$popover-arrow-height, $popover-border-width);
+
+    &::before {
+      bottom: 0;
+      border-width: $popover-arrow-height ($popover-arrow-width * .5) 0;
+      border-top-color: $popover-arrow-outer-color;
+    }
+
+    &::after {
+      bottom: $popover-border-width;
+      border-width: $popover-arrow-height ($popover-arrow-width * .5) 0;
+      border-top-color: $popover-arrow-color;
+    }
+  }
+}
+
+.bs-popover-right {
+  margin-left: $popover-arrow-height;
+
+  > .arrow {
+    left: subtract(-$popover-arrow-height, $popover-border-width);
+    width: $popover-arrow-height;
+    height: $popover-arrow-width;
+    margin: $popover-border-radius 0; // make sure the arrow does not touch the popover's rounded corners
+
+    &::before {
+      left: 0;
+      border-width: ($popover-arrow-width * .5) $popover-arrow-height ($popover-arrow-width * .5) 0;
+      border-right-color: $popover-arrow-outer-color;
+    }
+
+    &::after {
+      left: $popover-border-width;
+      border-width: ($popover-arrow-width * .5) $popover-arrow-height ($popover-arrow-width * .5) 0;
+      border-right-color: $popover-arrow-color;
+    }
+  }
+}
+
+.bs-popover-bottom {
+  margin-top: $popover-arrow-height;
+
+  > .arrow {
+    top: subtract(-$popover-arrow-height, $popover-border-width);
+
+    &::before {
+      top: 0;
+      border-width: 0 ($popover-arrow-width * .5) $popover-arrow-height ($popover-arrow-width * .5);
+      border-bottom-color: $popover-arrow-outer-color;
+    }
+
+    &::after {
+      top: $popover-border-width;
+      border-width: 0 ($popover-arrow-width * .5) $popover-arrow-height ($popover-arrow-width * .5);
+      border-bottom-color: $popover-arrow-color;
+    }
+  }
+
+  // This will remove the popover-header's border just below the arrow
+  .popover-header::before {
+    position: absolute;
+    top: 0;
+    left: 50%;
+    display: block;
+    width: $popover-arrow-width;
+    margin-left: -$popover-arrow-width * .5;
+    content: "";
+    border-bottom: $popover-border-width solid $popover-header-bg;
+  }
+}
+
+.bs-popover-left {
+  margin-right: $popover-arrow-height;
+
+  > .arrow {
+    right: subtract(-$popover-arrow-height, $popover-border-width);
+    width: $popover-arrow-height;
+    height: $popover-arrow-width;
+    margin: $popover-border-radius 0; // make sure the arrow does not touch the popover's rounded corners
+
+    &::before {
+      right: 0;
+      border-width: ($popover-arrow-width * .5) 0 ($popover-arrow-width * .5) $popover-arrow-height;
+      border-left-color: $popover-arrow-outer-color;
+    }
+
+    &::after {
+      right: $popover-border-width;
+      border-width: ($popover-arrow-width * .5) 0 ($popover-arrow-width * .5) $popover-arrow-height;
+      border-left-color: $popover-arrow-color;
+    }
+  }
+}
+
+.bs-popover-auto {
+  &[x-placement^="top"] {
+    @extend .bs-popover-top;
+  }
+  &[x-placement^="right"] {
+    @extend .bs-popover-right;
+  }
+  &[x-placement^="bottom"] {
+    @extend .bs-popover-bottom;
+  }
+  &[x-placement^="left"] {
+    @extend .bs-popover-left;
+  }
+}
+
+
+// Offset the popover to account for the popover arrow
+.popover-header {
+  padding: $popover-header-padding-y $popover-header-padding-x;
+  margin-bottom: 0; // Reset the default from Reboot
+  @include font-size($font-size-base);
+  color: $popover-header-color;
+  background-color: $popover-header-bg;
+  border-bottom: $popover-border-width solid darken($popover-header-bg, 5%);
+  @include border-top-radius($popover-inner-border-radius);
+
+  &:empty {
+    display: none;
+  }
+}
+
+.popover-body {
+  padding: $popover-body-padding-y $popover-body-padding-x;
+  color: $popover-body-color;
+}
diff --git a/css/bootstrap/_print.scss b/css/bootstrap/_print.scss
new file mode 100644
index 0000000..915298a
--- /dev/null
+++ b/css/bootstrap/_print.scss
@@ -0,0 +1,132 @@
+// stylelint-disable declaration-no-important, selector-no-qualifying-type
+
+// Source: https://github.com/h5bp/main.css/blob/master/src/_print.css
+
+// ==========================================================================
+// Print styles.
+// Inlined to avoid the additional HTTP request:
+// https://www.phpied.com/delay-loading-your-print-css/
+// ==========================================================================
+
+@if $enable-print-styles {
+  @media print {
+    *,
+    *::before,
+    *::after {
+      // Bootstrap specific; comment out `color` and `background`
+      //color: $black !important; // Black prints faster
+      text-shadow: none !important;
+      //background: transparent !important;
+      box-shadow: none !important;
+    }
+
+    a {
+      &:not(.btn) {
+        text-decoration: underline;
+      }
+    }
+
+    // Bootstrap specific; comment the following selector out
+    //a[href]::after {
+    //  content: " (" attr(href) ")";
+    //}
+
+    abbr[title]::after {
+      content: " (" attr(title) ")";
+    }
+
+    // Bootstrap specific; comment the following selector out
+    //
+    // Don't show links that are fragment identifiers,
+    // or use the `javascript:` pseudo protocol
+    //
+
+    //a[href^="#"]::after,
+    //a[href^="javascript:"]::after {
+    // content: "";
+    //}
+
+    pre {
+      white-space: pre-wrap !important;
+    }
+    pre,
+    blockquote {
+      border: $border-width solid $gray-500; // Bootstrap custom code; using `$border-width` instead of 1px
+      page-break-inside: avoid;
+    }
+
+    tr,
+    img {
+      page-break-inside: avoid;
+    }
+
+    p,
+    h2,
+    h3 {
+      orphans: 3;
+      widows: 3;
+    }
+
+    h2,
+    h3 {
+      page-break-after: avoid;
+    }
+
+    // Bootstrap specific changes start
+
+    // Specify a size and min-width to make printing closer across browsers.
+    // We don't set margin here because it breaks `size` in Chrome. We also
+    // don't use `!important` on `size` as it breaks in Chrome.
+    @page {
+      size: $print-page-size;
+    }
+    body {
+      min-width: $print-body-min-width !important;
+    }
+    .container {
+      min-width: $print-body-min-width !important;
+    }
+
+    // Bootstrap components
+    .navbar {
+      display: none;
+    }
+    .badge {
+      border: $border-width solid $black;
+    }
+
+    .table {
+      border-collapse: collapse !important;
+
+      td,
+      th {
+        background-color: $white !important;
+      }
+    }
+
+    .table-bordered {
+      th,
+      td {
+        border: 1px solid $gray-300 !important;
+      }
+    }
+
+    .table-dark {
+      color: inherit;
+
+      th,
+      td,
+      thead th,
+      tbody + tbody {
+        border-color: $table-border-color;
+      }
+    }
+
+    .table .thead-dark th {
+      color: inherit;
+      border-color: $table-border-color;
+    }
+
+    // Bootstrap specific changes end
+  }
+}
diff --git a/css/bootstrap/_progress.scss b/css/bootstrap/_progress.scss
new file mode 100644
index 0000000..e206474
--- /dev/null
+++ b/css/bootstrap/_progress.scss
@@ -0,0 +1,47 @@
+// Disable animation if transitions are disabled
+@if $enable-transitions {
+  @keyframes progress-bar-stripes {
+    from { background-position: $progress-height 0; }
+    to { background-position: 0 0; }
+  }
+}
+
+.progress {
+  display: flex;
+  height: $progress-height;
+  overflow: hidden; // force rounded corners by cropping it
+  line-height: 0;
+  @include font-size($progress-font-size);
+  background-color: $progress-bg;
+  @include border-radius($progress-border-radius);
+  @include box-shadow($progress-box-shadow);
+}
+
+.progress-bar {
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  overflow: hidden;
+  color: $progress-bar-color;
+  text-align: center;
+  white-space: nowrap;
+  background-color: $progress-bar-bg;
+  @include transition($progress-bar-transition);
+}
+
+.progress-bar-striped {
+  @include gradient-striped();
+  background-size: $progress-height $progress-height;
+}
+
+@if $enable-transitions {
+  .progress-bar-animated {
+    animation: $progress-bar-animation-timing progress-bar-stripes;
+
+    @if $enable-prefers-reduced-motion-media-query {
+      @media (prefers-reduced-motion: reduce) {
+        animation: none;
+      }
+    }
+  }
+}
diff --git a/css/bootstrap/_reboot.scss b/css/bootstrap/_reboot.scss
new file mode 100644
index 0000000..cd93bfe
--- /dev/null
+++ b/css/bootstrap/_reboot.scss
@@ -0,0 +1,484 @@
+// stylelint-disable declaration-no-important, selector-no-qualifying-type, property-no-vendor-prefix
+
+// Reboot
+//
+// Normalization of HTML elements, manually forked from Normalize.css to remove
+// styles targeting irrelevant browsers while applying new styles.
+//
+// Normalize is licensed MIT. https://github.com/necolas/normalize.css
+
+
+// Document
+//
+// 1. Change from `box-sizing: content-box` so that `width` is not affected by `padding` or `border`.
+// 2. Change the default font family in all browsers.
+// 3. Correct the line height in all browsers.
+// 4. Prevent adjustments of font size after orientation changes in IE on Windows Phone and in iOS.
+// 5. Change the default tap highlight to be completely transparent in iOS.
+
+*,
+*::before,
+*::after {
+  box-sizing: border-box; // 1
+}
+
+html {
+  font-family: sans-serif; // 2
+  line-height: 1.15; // 3
+  -webkit-text-size-adjust: 100%; // 4
+  -webkit-tap-highlight-color: rgba($black, 0); // 5
+}
+
+// Shim for "new" HTML5 structural elements to display correctly (IE10, older browsers)
+// TODO: remove in v5
+// stylelint-disable-next-line selector-list-comma-newline-after
+article, aside, figcaption, figure, footer, header, hgroup, main, nav, section {
+  display: block;
+}
+
+// Body
+//
+// 1. Remove the margin in all browsers.
+// 2. As a best practice, apply a default `background-color`.
+// 3. Set an explicit initial text-align value so that we can later use
+//    the `inherit` value on things like `<th>` elements.
+
+body {
+  margin: 0; // 1
+  font-family: $font-family-base;
+  @include font-size($font-size-base);
+  font-weight: $font-weight-base;
+  line-height: $line-height-base;
+  color: $body-color;
+  text-align: left; // 3
+  background-color: $body-bg; // 2
+}
+
+// Future-proof rule: in browsers that support :focus-visible, suppress the focus outline
+// on elements that programmatically receive focus but wouldn't normally show a visible
+// focus outline. In general, this would mean that the outline is only applied if the
+// interaction that led to the element receiving programmatic focus was a keyboard interaction,
+// or the browser has somehow determined that the user is primarily a keyboard user and/or
+// wants focus outlines to always be presented.
+//
+// See https://developer.mozilla.org/en-US/docs/Web/CSS/:focus-visible
+// and https://developer.paciellogroup.com/blog/2018/03/focus-visible-and-backwards-compatibility/
+[tabindex="-1"]:focus:not(:focus-visible) {
+  outline: 0 !important;
+}
+
+
+// Content grouping
+//
+// 1. Add the correct box sizing in Firefox.
+// 2. Show the overflow in Edge and IE.
+
+hr {
+  box-sizing: content-box; // 1
+  height: 0; // 1
+  overflow: visible; // 2
+}
+
+
+//
+// Typography
+//
+
+// Remove top margins from headings
+//
+// By default, `<h1>`-`<h6>` all receive top and bottom margins. We nuke the top
+// margin for easier control within type scales as it avoids margin collapsing.
+// stylelint-disable-next-line selector-list-comma-newline-after
+h1, h2, h3, h4, h5, h6 {
+  margin-top: 0;
+  margin-bottom: $headings-margin-bottom;
+}
+
+// Reset margins on paragraphs
+//
+// Similarly, the top margin on `<p>`s get reset. However, we also reset the
+// bottom margin to use `rem` units instead of `em`.
+p {
+  margin-top: 0;
+  margin-bottom: $paragraph-margin-bottom;
+}
+
+// Abbreviations
+//
+// 1. Duplicate behavior to the data-* attribute for our tooltip plugin
+// 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
+// 3. Add explicit cursor to indicate changed behavior.
+// 4. Remove the bottom border in Firefox 39-.
+// 5. Prevent the text-decoration to be skipped.
+
+abbr[title],
+abbr[data-original-title] { // 1
+  text-decoration: underline; // 2
+  text-decoration: underline dotted; // 2
+  cursor: help; // 3
+  border-bottom: 0; // 4
+  text-decoration-skip-ink: none; // 5
+}
+
+address {
+  margin-bottom: 1rem;
+  font-style: normal;
+  line-height: inherit;
+}
+
+ol,
+ul,
+dl {
+  margin-top: 0;
+  margin-bottom: 1rem;
+}
+
+ol ol,
+ul ul,
+ol ul,
+ul ol {
+  margin-bottom: 0;
+}
+
+dt {
+  font-weight: $dt-font-weight;
+}
+
+dd {
+  margin-bottom: .5rem;
+  margin-left: 0; // Undo browser default
+}
+
+blockquote {
+  margin: 0 0 1rem;
+}
+
+b,
+strong {
+  font-weight: $font-weight-bolder; // Add the correct font weight in Chrome, Edge, and Safari
+}
+
+small {
+  @include font-size(80%); // Add the correct font size in all browsers
+}
+
+//
+// Prevent `sub` and `sup` elements from affecting the line height in
+// all browsers.
+//
+
+sub,
+sup {
+  position: relative;
+  @include font-size(75%);
+  line-height: 0;
+  vertical-align: baseline;
+}
+
+sub { bottom: -.25em; }
+sup { top: -.5em; }
+
+
+//
+// Links
+//
+
+a {
+  color: $link-color;
+  text-decoration: $link-decoration;
+  background-color: transparent; // Remove the gray background on active links in IE 10.
+
+  @include hover() {
+    color: $link-hover-color;
+    text-decoration: $link-hover-decoration;
+  }
+}
+
+// And undo these styles for placeholder links/named anchors (without href).
+// It would be more straightforward to just use a[href] in previous block, but that
+// causes specificity issues in many other styles that are too complex to fix.
+// See https://github.com/twbs/bootstrap/issues/19402
+
+a:not([href]):not([class]) {
+  color: inherit;
+  text-decoration: none;
+
+  @include hover() {
+    color: inherit;
+    text-decoration: none;
+  }
+}
+
+
+//
+// Code
+//
+
+pre,
+code,
+kbd,
+samp {
+  font-family: $font-family-monospace;
+  @include font-size(1em); // Correct the odd `em` font sizing in all browsers.
+}
+
+pre {
+  // Remove browser default top margin
+  margin-top: 0;
+  // Reset browser default of `1em` to use `rem`s
+  margin-bottom: 1rem;
+  // Don't allow content to break outside
+  overflow: auto;
+  // Disable auto-hiding scrollbar in IE & legacy Edge to avoid overlap,
+  // making it impossible to interact with the content
+  -ms-overflow-style: scrollbar;
+}
+
+
+//
+// Figures
+//
+
+figure {
+  // Apply a consistent margin strategy (matches our type styles).
+  margin: 0 0 1rem;
+}
+
+
+//
+// Images and content
+//
+
+img {
+  vertical-align: middle;
+  border-style: none; // Remove the border on images inside links in IE 10-.
+}
+
+svg {
+  // Workaround for the SVG overflow bug in IE10/11 is still required.
+  // See https://github.com/twbs/bootstrap/issues/26878
+  overflow: hidden;
+  vertical-align: middle;
+}
+
+
+//
+// Tables
+//
+
+table {
+  border-collapse: collapse; // Prevent double borders
+}
+
+caption {
+  padding-top: $table-cell-padding;
+  padding-bottom: $table-cell-padding;
+  color: $table-caption-color;
+  text-align: left;
+  caption-side: bottom;
+}
+
+// 1. Removes font-weight bold by inheriting
+// 2. Matches default `<td>` alignment by inheriting `text-align`.
+// 3. Fix alignment for Safari
+
+th {
+  font-weight: $table-th-font-weight; // 1
+  text-align: inherit; // 2
+  text-align: -webkit-match-parent; // 3
+}
+
+
+//
+// Forms
+//
+
+label {
+  // Allow labels to use `margin` for spacing.
+  display: inline-block;
+  margin-bottom: $label-margin-bottom;
+}
+
+// Remove the default `border-radius` that macOS Chrome adds.
+//
+// Details at https://github.com/twbs/bootstrap/issues/24093
+button {
+  // stylelint-disable-next-line property-disallowed-list
+  border-radius: 0;
+}
+
+// Explicitly remove focus outline in Chromium when it shouldn't be
+// visible (e.g. as result of mouse click or touch tap). It already
+// should be doing this automatically, but seems to currently be
+// confused and applies its very visible two-tone outline anyway.
+
+button:focus:not(:focus-visible) {
+  outline: 0;
+}
+
+input,
+button,
+select,
+optgroup,
+textarea {
+  margin: 0; // Remove the margin in Firefox and Safari
+  font-family: inherit;
+  @include font-size(inherit);
+  line-height: inherit;
+}
+
+button,
+input {
+  overflow: visible; // Show the overflow in Edge
+}
+
+button,
+select {
+  text-transform: none; // Remove the inheritance of text transform in Firefox
+}
+
+// Set the cursor for non-`<button>` buttons
+//
+// Details at https://github.com/twbs/bootstrap/pull/30562
+[role="button"] {
+  cursor: pointer;
+}
+
+// Remove the inheritance of word-wrap in Safari.
+//
+// Details at https://github.com/twbs/bootstrap/issues/24990
+select {
+  word-wrap: normal;
+}
+
+
+// 1. Prevent a WebKit bug where (2) destroys native `audio` and `video`
+//    controls in Android 4.
+// 2. Correct the inability to style clickable types in iOS and Safari.
+button,
+[type="button"], // 1
+[type="reset"],
+[type="submit"] {
+  -webkit-appearance: button; // 2
+}
+
+// Opinionated: add "hand" cursor to non-disabled button elements.
+@if $enable-pointer-cursor-for-buttons {
+  button,
+  [type="button"],
+  [type="reset"],
+  [type="submit"] {
+    &:not(:disabled) {
+      cursor: pointer;
+    }
+  }
+}
+
+// Remove inner border and padding from Firefox, but don't restore the outline like Normalize.
+button::-moz-focus-inner,
+[type="button"]::-moz-focus-inner,
+[type="reset"]::-moz-focus-inner,
+[type="submit"]::-moz-focus-inner {
+  padding: 0;
+  border-style: none;
+}
+
+input[type="radio"],
+input[type="checkbox"] {
+  box-sizing: border-box; // 1. Add the correct box sizing in IE 10-
+  padding: 0; // 2. Remove the padding in IE 10-
+}
+
+
+textarea {
+  overflow: auto; // Remove the default vertical scrollbar in IE.
+  // Textareas should really only resize vertically so they don't break their (horizontal) containers.
+  resize: vertical;
+}
+
+fieldset {
+  // Browsers set a default `min-width: min-content;` on fieldsets,
+  // unlike e.g. `<div>`s, which have `min-width: 0;` by default.
+  // So we reset that to ensure fieldsets behave more like a standard block element.
+  // See https://github.com/twbs/bootstrap/issues/12359
+  // and https://html.spec.whatwg.org/multipage/#the-fieldset-and-legend-elements
+  min-width: 0;
+  // Reset the default outline behavior of fieldsets so they don't affect page layout.
+  padding: 0;
+  margin: 0;
+  border: 0;
+}
+
+// 1. Correct the text wrapping in Edge and IE.
+// 2. Correct the color inheritance from `fieldset` elements in IE.
+legend {
+  display: block;
+  width: 100%;
+  max-width: 100%; // 1
+  padding: 0;
+  margin-bottom: .5rem;
+  @include font-size(1.5rem);
+  line-height: inherit;
+  color: inherit; // 2
+  white-space: normal; // 1
+}
+
+progress {
+  vertical-align: baseline; // Add the correct vertical alignment in Chrome, Firefox, and Opera.
+}
+
+// Correct the cursor style of increment and decrement buttons in Chrome.
+[type="number"]::-webkit-inner-spin-button,
+[type="number"]::-webkit-outer-spin-button {
+  height: auto;
+}
+
+[type="search"] {
+  // This overrides the extra rounded corners on search inputs in iOS so that our
+  // `.form-control` class can properly style them. Note that this cannot simply
+  // be added to `.form-control` as it's not specific enough. For details, see
+  // https://github.com/twbs/bootstrap/issues/11586.
+  outline-offset: -2px; // 2. Correct the outline style in Safari.
+  -webkit-appearance: none;
+}
+
+//
+// Remove the inner padding in Chrome and Safari on macOS.
+//
+
+[type="search"]::-webkit-search-decoration {
+  -webkit-appearance: none;
+}
+
+//
+// 1. Correct the inability to style clickable types in iOS and Safari.
+// 2. Change font properties to `inherit` in Safari.
+//
+
+::-webkit-file-upload-button {
+  font: inherit; // 2
+  -webkit-appearance: button; // 1
+}
+
+//
+// Correct element displays
+//
+
+output {
+  display: inline-block;
+}
+
+summary {
+  display: list-item; // Add the correct display in all browsers
+  cursor: pointer;
+}
+
+template {
+  display: none; // Add the correct display in IE
+}
+
+// Always hide an element with the `hidden` HTML attribute (from PureCSS).
+// Needed for proper display in IE 10-.
+[hidden] {
+  display: none !important;
+}
diff --git a/css/bootstrap/_root.scss b/css/bootstrap/_root.scss
new file mode 100644
index 0000000..ad550df
--- /dev/null
+++ b/css/bootstrap/_root.scss
@@ -0,0 +1,19 @@
+:root {
+  // Custom variable values only support SassScript inside `#{}`.
+  @each $color, $value in $colors {
+    --#{$color}: #{$value};
+  }
+
+  @each $color, $value in $theme-colors {
+    --#{$color}: #{$value};
+  }
+
+  @each $bp, $value in $grid-breakpoints {
+    --breakpoint-#{$bp}: #{$value};
+  }
+
+  // Use `inspect` for lists so that quoted items keep the quotes.
+  // See https://github.com/sass/sass/issues/2383#issuecomment-336349172
+  --font-family-sans-serif: #{inspect($font-family-sans-serif)};
+  --font-family-monospace: #{inspect($font-family-monospace)};
+}
diff --git a/css/bootstrap/_spinners.scss b/css/bootstrap/_spinners.scss
new file mode 100644
index 0000000..98c0108
--- /dev/null
+++ b/css/bootstrap/_spinners.scss
@@ -0,0 +1,65 @@
+//
+// Rotating border
+//
+
+@keyframes spinner-border {
+  to { transform: rotate(360deg); }
+}
+
+.spinner-border {
+  display: inline-block;
+  width: $spinner-width;
+  height: $spinner-height;
+  vertical-align: $spinner-vertical-align;
+  border: $spinner-border-width solid currentColor;
+  border-right-color: transparent;
+  // stylelint-disable-next-line property-disallowed-list
+  border-radius: 50%;
+  animation: .75s linear infinite spinner-border;
+}
+
+.spinner-border-sm {
+  width: $spinner-width-sm;
+  height: $spinner-height-sm;
+  border-width: $spinner-border-width-sm;
+}
+
+//
+// Growing circle
+//
+
+@keyframes spinner-grow {
+  0% {
+    transform: scale(0);
+  }
+  50% {
+    opacity: 1;
+    transform: none;
+  }
+}
+
+.spinner-grow {
+  display: inline-block;
+  width: $spinner-width;
+  height: $spinner-height;
+  vertical-align: $spinner-vertical-align;
+  background-color: currentColor;
+  // stylelint-disable-next-line property-disallowed-list
+  border-radius: 50%;
+  opacity: 0;
+  animation: .75s linear infinite spinner-grow;
+}
+
+.spinner-grow-sm {
+  width: $spinner-width-sm;
+  height: $spinner-height-sm;
+}
+
+@if $enable-prefers-reduced-motion-media-query {
+  @media (prefers-reduced-motion: reduce) {
+    .spinner-border,
+    .spinner-grow {
+      animation-duration: 1.5s;
+    }
+  }
+}
diff --git a/css/bootstrap/_tables.scss b/css/bootstrap/_tables.scss
new file mode 100644
index 0000000..5fd77a4
--- /dev/null
+++ b/css/bootstrap/_tables.scss
@@ -0,0 +1,185 @@
+//
+// Basic Bootstrap table
+//
+
+.table {
+  width: 100%;
+  margin-bottom: $spacer;
+  color: $table-color;
+  background-color: $table-bg; // Reset for nesting within parents with `background-color`.
+
+  th,
+  td {
+    padding: $table-cell-padding;
+    vertical-align: top;
+    border-top: $table-border-width solid $table-border-color;
+  }
+
+  thead th {
+    vertical-align: bottom;
+    border-bottom: (2 * $table-border-width) solid $table-border-color;
+  }
+
+  tbody + tbody {
+    border-top: (2 * $table-border-width) solid $table-border-color;
+  }
+}
+
+
+//
+// Condensed table w/ half padding
+//
+
+.table-sm {
+  th,
+  td {
+    padding: $table-cell-padding-sm;
+  }
+}
+
+
+// Border versions
+//
+// Add or remove borders all around the table and between all the columns.
+
+.table-bordered {
+  border: $table-border-width solid $table-border-color;
+
+  th,
+  td {
+    border: $table-border-width solid $table-border-color;
+  }
+
+  thead {
+    th,
+    td {
+      border-bottom-width: 2 * $table-border-width;
+    }
+  }
+}
+
+.table-borderless {
+  th,
+  td,
+  thead th,
+  tbody + tbody {
+    border: 0;
+  }
+}
+
+// Zebra-striping
+//
+// Default zebra-stripe styles (alternating gray and transparent backgrounds)
+
+.table-striped {
+  tbody tr:nth-of-type(#{$table-striped-order}) {
+    background-color: $table-accent-bg;
+  }
+}
+
+
+// Hover effect
+//
+// Placed here since it has to come after the potential zebra striping
+
+.table-hover {
+  tbody tr {
+    @include hover() {
+      color: $table-hover-color;
+      background-color: $table-hover-bg;
+    }
+  }
+}
+
+
+// Table backgrounds
+//
+// Exact selectors below required to override `.table-striped` and prevent
+// inheritance to nested tables.
+
+@each $color, $value in $theme-colors {
+  @include table-row-variant($color, theme-color-level($color, $table-bg-level), theme-color-level($color, $table-border-level));
+}
+
+@include table-row-variant(active, $table-active-bg);
+
+
+// Dark styles
+//
+// Same table markup, but inverted color scheme: dark background and light text.
+
+// stylelint-disable-next-line no-duplicate-selectors
+.table {
+  .thead-dark {
+    th {
+      color: $table-dark-color;
+      background-color: $table-dark-bg;
+      border-color: $table-dark-border-color;
+    }
+  }
+
+  .thead-light {
+    th {
+      color: $table-head-color;
+      background-color: $table-head-bg;
+      border-color: $table-border-color;
+    }
+  }
+}
+
+.table-dark {
+  color: $table-dark-color;
+  background-color: $table-dark-bg;
+
+  th,
+  td,
+  thead th {
+    border-color: $table-dark-border-color;
+  }
+
+  &.table-bordered {
+    border: 0;
+  }
+
+  &.table-striped {
+    tbody tr:nth-of-type(#{$table-striped-order}) {
+      background-color: $table-dark-accent-bg;
+    }
+  }
+
+  &.table-hover {
+    tbody tr {
+      @include hover() {
+        color: $table-dark-hover-color;
+        background-color: $table-dark-hover-bg;
+      }
+    }
+  }
+}
+
+
+// Responsive tables
+//
+// Generate series of `.table-responsive-*` classes for configuring the screen
+// size of where your table will overflow.
+
+.table-responsive {
+  @each $breakpoint in map-keys($grid-breakpoints) {
+    $next: breakpoint-next($breakpoint, $grid-breakpoints);
+    $infix: breakpoint-infix($next, $grid-breakpoints);
+
+    &#{$infix} {
+      @include media-breakpoint-down($breakpoint) {
+        display: block;
+        width: 100%;
+        overflow-x: auto;
+        -webkit-overflow-scrolling: touch;
+
+        // Prevent double border on horizontal scroll due to use of `display: block;`
+        > .table-bordered {
+          border: 0;
+        }
+      }
+    }
+  }
+}
diff --git a/css/bootstrap/_toasts.scss b/css/bootstrap/_toasts.scss
new file mode 100644
index 0000000..f9ca8d9
--- /dev/null
+++ b/css/bootstrap/_toasts.scss
@@ -0,0 +1,46 @@
+.toast {
+  // Prevents from shrinking in IE11, when in a flex container
+  // See https://github.com/twbs/bootstrap/issues/28341
+  flex-basis: $toast-max-width;
+  max-width: $toast-max-width;
+  @include font-size($toast-font-size);
+  color: $toast-color;
+  background-color: $toast-background-color;
+  background-clip: padding-box;
+  border: $toast-border-width solid $toast-border-color;
+  box-shadow: $toast-box-shadow;
+  opacity: 0;
+  @include border-radius($toast-border-radius);
+
+  &:not(:last-child) {
+    margin-bottom: $toast-padding-x;
+  }
+
+  &.showing {
+    opacity: 1;
+  }
+
+  &.show {
+    display: block;
+    opacity: 1;
+  }
+
+  &.hide {
+    display: none;
+  }
+}
+
+.toast-header {
+  display: flex;
+  align-items: center;
+  padding: $toast-padding-y $toast-padding-x;
+  color: $toast-header-color;
+  background-color: $toast-header-background-color;
+  background-clip: padding-box;
+  border-bottom: $toast-border-width solid $toast-header-border-color;
+  @include border-top-radius(subtract($toast-border-radius, $toast-border-width));
+}
+
+.toast-body {
+  padding: $toast-padding-x; // apply to both vertical and horizontal
+}
diff --git a/css/bootstrap/_tooltip.scss b/css/bootstrap/_tooltip.scss
new file mode 100644
index 0000000..6771b4e
--- /dev/null
+++ b/css/bootstrap/_tooltip.scss
@@ -0,0 +1,115 @@
+// Base class
+.tooltip {
+  position: absolute;
+  z-index: $zindex-tooltip;
+  display: block;
+  margin: $tooltip-margin;
+  // Our parent element can be arbitrary since tooltips are by default inserted as a sibling of their target element.
+  // So reset our font and text properties to avoid inheriting weird values.
+  @include reset-text();
+  @include font-size($tooltip-font-size);
+  // Allow breaking very long words so they don't overflow the tooltip's bounds
+  word-wrap: break-word;
+  opacity: 0;
+
+  &.show { opacity: $tooltip-opacity; }
+
+  .arrow {
+    position: absolute;
+    display: block;
+    width: $tooltip-arrow-width;
+    height: $tooltip-arrow-height;
+
+    &::before {
+      position: absolute;
+      content: "";
+      border-color: transparent;
+      border-style: solid;
+    }
+  }
+}
+
+.bs-tooltip-top {
+  padding: $tooltip-arrow-height 0;
+
+  .arrow {
+    bottom: 0;
+
+    &::before {
+      top: 0;
+      border-width: $tooltip-arrow-height ($tooltip-arrow-width * .5) 0;
+      border-top-color: $tooltip-arrow-color;
+    }
+  }
+}
+
+.bs-tooltip-right {
+  padding: 0 $tooltip-arrow-height;
+
+  .arrow {
+    left: 0;
+    width: $tooltip-arrow-height;
+    height: $tooltip-arrow-width;
+
+    &::before {
+      right: 0;
+      border-width: ($tooltip-arrow-width * .5) $tooltip-arrow-height ($tooltip-arrow-width * .5) 0;
+      border-right-color: $tooltip-arrow-color;
+    }
+  }
+}
+
+.bs-tooltip-bottom {
+  padding: $tooltip-arrow-height 0;
+
+  .arrow {
+    top: 0;
+
+    &::before {
+      bottom: 0;
+      border-width: 0 ($tooltip-arrow-width * .5) $tooltip-arrow-height;
+      border-bottom-color: $tooltip-arrow-color;
+    }
+  }
+}
+
+.bs-tooltip-left {
+  padding: 0 $tooltip-arrow-height;
+
+  .arrow {
+    right: 0;
+    width: $tooltip-arrow-height;
+    height: $tooltip-arrow-width;
+
+    &::before {
+      left: 0;
+      border-width: ($tooltip-arrow-width * .5) 0 ($tooltip-arrow-width * .5) $tooltip-arrow-height;
+      border-left-color: $tooltip-arrow-color;
+    }
+  }
+}
+
+.bs-tooltip-auto {
+  &[x-placement^="top"] {
+    @extend .bs-tooltip-top;
+  }
+  &[x-placement^="right"] {
+    @extend .bs-tooltip-right;
+  }
+  &[x-placement^="bottom"] {
+    @extend .bs-tooltip-bottom;
+  }
+  &[x-placement^="left"] {
+    @extend .bs-tooltip-left;
+  }
+}
+
+// Wrapper for the tooltip content
+.tooltip-inner {
+  max-width: $tooltip-max-width;
+  padding: $tooltip-padding-y $tooltip-padding-x;
+  color: $tooltip-color;
+  text-align: center;
+  background-color: $tooltip-bg;
+  @include border-radius($tooltip-border-radius);
+}
diff --git a/css/bootstrap/_transitions.scss b/css/bootstrap/_transitions.scss
new file mode 100644
index 0000000..40be4d9
--- /dev/null
+++ b/css/bootstrap/_transitions.scss
@@ -0,0 +1,20 @@
+.fade {
+  @include transition($transition-fade);
+
+  &:not(.show) {
+    opacity: 0;
+  }
+}
+
+.collapse {
+  &:not(.show) {
+    display: none;
+  }
+}
+
+.collapsing {
+  position: relative;
+  height: 0;
+  overflow: hidden;
+  @include transition($transition-collapse);
+}
diff --git a/css/bootstrap/_type.scss b/css/bootstrap/_type.scss
new file mode 100644
index 0000000..3112a73
--- /dev/null
+++ b/css/bootstrap/_type.scss
@@ -0,0 +1,125 @@
+// stylelint-disable selector-list-comma-newline-after
+
+//
+// Headings
+//
+
+h1, h2, h3, h4, h5, h6,
+.h1, .h2, .h3, .h4, .h5, .h6 {
+  margin-bottom: $headings-margin-bottom;
+  font-family: $headings-font-family;
+  font-weight: $headings-font-weight;
+  line-height: $headings-line-height;
+  color: $headings-color;
+}
+
+h1, .h1 { @include font-size($h1-font-size); }
+h2, .h2 { @include font-size($h2-font-size); }
+h3, .h3 { @include font-size($h3-font-size); }
+h4, .h4 { @include font-size($h4-font-size); }
+h5, .h5 { @include font-size($h5-font-size); }
+h6, .h6 { @include font-size($h6-font-size); }
+
+.lead {
+  @include font-size($lead-font-size);
+  font-weight: $lead-font-weight;
+}
+
+// Type display classes
+.display-1 {
+  @include font-size($display1-size);
+  font-weight: $display1-weight;
+  line-height: $display-line-height;
+}
+.display-2 {
+  @include font-size($display2-size);
+  font-weight: $display2-weight;
+  line-height: $display-line-height;
+}
+.display-3 {
+  @include font-size($display3-size);
+  font-weight: $display3-weight;
+  line-height: $display-line-height;
+}
+.display-4 {
+  @include font-size($display4-size);
+  font-weight: $display4-weight;
+  line-height: $display-line-height;
+}
+
+
+//
+// Horizontal rules
+//
+
+hr {
+  margin-top: $hr-margin-y;
+  margin-bottom: $hr-margin-y;
+  border: 0;
+  border-top: $hr-border-width solid $hr-border-color;
+}
+
+
+//
+// Emphasis
+//
+
+small,
+.small {
+  @include font-size($small-font-size);
+  font-weight: $font-weight-normal;
+}
+
+mark,
+.mark {
+  padding: $mark-padding;
+  background-color: $mark-bg;
+}
+
+
+//
+// Lists
+//
+
+.list-unstyled {
+  @include list-unstyled();
+}
+
+// Inline turns list items into inline-block
+.list-inline {
+  @include list-unstyled();
+}
+.list-inline-item {
+  display: inline-block;
+
+  &:not(:last-child) {
+    margin-right: $list-inline-padding;
+  }
+}
+
+
+//
+// Misc
+//
+
+// Builds on `abbr`
+.initialism {
+  @include font-size(90%);
+  text-transform: uppercase;
+}
+
+// Blockquotes
+.blockquote {
+  margin-bottom: $spacer;
+  @include font-size($blockquote-font-size);
+}
+
+.blockquote-footer {
+  display: block;
+  @include font-size($blockquote-small-font-size);
+  color: $blockquote-small-color;
+
+  &::before {
+    content: "\2014\00A0"; // em dash, nbsp
+  }
+}
diff --git a/css/bootstrap/_utilities.scss b/css/bootstrap/_utilities.scss
new file mode 100644
index 0000000..10e31dd
--- /dev/null
+++ b/css/bootstrap/_utilities.scss
@@ -0,0 +1,18 @@
+@import "utilities/align";
+@import "utilities/background";
+@import "utilities/borders";
+@import "utilities/clearfix";
+@import "utilities/display";
+@import "utilities/embed";
+@import "utilities/flex";
+@import "utilities/float";
+@import "utilities/interactions";
+@import "utilities/overflow";
+@import "utilities/position";
+@import "utilities/screenreaders";
+@import "utilities/shadows";
+@import "utilities/sizing";
+@import "utilities/spacing";
+@import "utilities/stretched-link";
+@import "utilities/text";
+@import "utilities/visibility";
diff --git a/css/bootstrap/_variables.scss b/css/bootstrap/_variables.scss
new file mode 100644
index 0000000..7d8fb3b
--- /dev/null
+++ b/css/bootstrap/_variables.scss
@@ -0,0 +1,1148 @@
+// Variables
+//
+// Variables should follow the `$component-state-property-size` formula for
+// consistent naming. Ex: $nav-link-disabled-color and $modal-content-box-shadow-xs.
+
+// Color system
+
+$white:    #fff !default;
+$gray-100: #f8f9fa !default;
+$gray-200: #e9ecef !default;
+$gray-300: #dee2e6 !default;
+$gray-400: #ced4da !default;
+$gray-500: #adb5bd !default;
+$gray-600: #6c757d !default;
+$gray-700: #495057 !default;
+$gray-800: #343a40 !default;
+$gray-900: #212529 !default;
+$black:    #000 !default;
+
+$grays: () !default;
+$grays: map-merge(
+  (
+    "100": $gray-100,
+    "200": $gray-200,
+    "300": $gray-300,
+    "400": $gray-400,
+    "500": $gray-500,
+    "600": $gray-600,
+    "700": $gray-700,
+    "800": $gray-800,
+    "900": $gray-900
+  ),
+  $grays
+);
+
+$blue:    #007bff !default;
+$indigo:  #6610f2 !default;
+$purple:  #6f42c1 !default;
+$pink:    #e83e8c !default;
+$red:     #dc3545 !default;
+$orange:  #fd7e14 !default;
+$yellow:  #ffc107 !default;
+$green:   #28a745 !default;
+$teal:    #20c997 !default;
+$cyan:    #17a2b8 !default;
+
+$colors: () !default;
+$colors: map-merge(
+  (
+    "blue":       $blue,
+    "indigo":     $indigo,
+    "purple":     $purple,
+    "pink":       $pink,
+    "red":        $red,
+    "orange":     $orange,
+    "yellow":     $yellow,
+    "green":      $green,
+    "teal":       $teal,
+    "cyan":       $cyan,
+    "white":      $white,
+    "gray":       $gray-600,
+    "gray-dark":  $gray-800
+  ),
+  $colors
+);
+
+$primary:       $blue !default;
+$secondary:     $gray-600 !default;
+$success:       $green !default;
+$info:          $cyan !default;
+$warning:       $yellow !default;
+$danger:        $red !default;
+$light:         $gray-100 !default;
+$dark:          $gray-800 !default;
+
+$theme-colors: () !default;
+$theme-colors: map-merge(
+  (
+    "primary":    $primary,
+    "secondary":  $secondary,
+    "success":    $success,
+    "info":       $info,
+    "warning":    $warning,
+    "danger":     $danger,
+    "light":      $light,
+    "dark":       $dark
+  ),
+  $theme-colors
+);
+
+// Set a specific jump point for requesting color jumps
+$theme-color-interval:      8% !default;
+
+// The yiq lightness value that determines when the lightness of color changes from "dark" to "light". Acceptable values are between 0 and 255.
+$yiq-contrasted-threshold:  150 !default;
+
+// Customize the light and dark text colors for use in our YIQ color contrast function.
+$yiq-text-dark:             $gray-900 !default;
+$yiq-text-light:            $white !default;
+
+// Characters which are escaped by the escape-svg function
+$escaped-characters: (
+  ("<", "%3c"),
+  (">", "%3e"),
+  ("#", "%23"),
+  ("(", "%28"),
+  (")", "%29"),
+) !default;
+
+
+// Options
+//
+// Quickly modify global styling by enabling or disabling optional features.
+
+$enable-caret:                                true !default;
+$enable-rounded:                              true !default;
+$enable-shadows:                              false !default;
+$enable-gradients:                            false !default;
+$enable-transitions:                          true !default;
+$enable-prefers-reduced-motion-media-query:   true !default;
+$enable-hover-media-query:                    false !default; // Deprecated, no longer affects any compiled CSS
+$enable-grid-classes:                         true !default;
+$enable-pointer-cursor-for-buttons:           true !default;
+$enable-print-styles:                         true !default;
+$enable-responsive-font-sizes:                false !default;
+$enable-validation-icons:                     true !default;
+$enable-deprecation-messages:                 true !default;
+
+
+// Spacing
+//
+// Control the default styling of most Bootstrap elements by modifying these
+// variables. Mostly focused on spacing.
+// You can add more entries to the $spacers map, should you need more variation.
+
+$spacer: 1rem !default;
+$spacers: () !default;
+$spacers: map-merge(
+  (
+    0: 0,
+    1: ($spacer * .25),
+    2: ($spacer * .5),
+    3: $spacer,
+    4: ($spacer * 1.5),
+    5: ($spacer * 3)
+  ),
+  $spacers
+);
+
+// This variable affects the `.h-*` and `.w-*` classes.
+$sizes: () !default;
+$sizes: map-merge(
+  (
+    25: 25%,
+    50: 50%,
+    75: 75%,
+    100: 100%,
+    auto: auto
+  ),
+  $sizes
+);
+
+
+// Body
+//
+// Settings for the `<body>` element.
+
+$body-bg:                   $white !default;
+$body-color:                $gray-900 !default;
+
+
+// Links
+//
+// Style anchor elements.
+
+$link-color:                              theme-color("primary") !default;
+$link-decoration:                         none !default;
+$link-hover-color:                        darken($link-color, 15%) !default;
+$link-hover-decoration:                   underline !default;
+// Darken percentage for links with `.text-*` class (e.g. `.text-success`)
+$emphasized-link-hover-darken-percentage: 15% !default;
+
+// Paragraphs
+//
+// Style p element.
+
+$paragraph-margin-bottom:   1rem !default;
+
+
+// Grid breakpoints
+//
+// Define the minimum dimensions at which your layout will change,
+// adapting to different screen sizes, for use in media queries.
+
+$grid-breakpoints: (
+  xs: 0,
+  sm: 576px,
+  md: 768px,
+  lg: 992px,
+  xl: 1200px
+) !default;
+
+@include _assert-ascending($grid-breakpoints, "$grid-breakpoints");
+@include _assert-starts-at-zero($grid-breakpoints, "$grid-breakpoints");
+
+
+// Grid containers
+//
+// Define the maximum width of `.container` for different screen sizes.
+
+$container-max-widths: (
+  sm: 540px,
+  md: 720px,
+  lg: 960px,
+  xl: 1140px
+) !default;
+
+@include _assert-ascending($container-max-widths, "$container-max-widths");
+
+
+// Grid columns
+//
+// Set the number of columns and specify the width of the gutters.
+
+$grid-columns:                12 !default;
+$grid-gutter-width:           30px !default;
+$grid-row-columns:            6 !default;
+
+
+// Components
+//
+// Define common padding and border radius sizes and more.
+
+$line-height-lg:              1.5 !default;
+$line-height-sm:              1.5 !default;
+
+$border-width:                1px !default;
+$border-color:                $gray-300 !default;
+
+$border-radius:               .25rem !default;
+$border-radius-lg:            .3rem !default;
+$border-radius-sm:            .2rem !default;
+
+$rounded-pill:                50rem !default;
+
+$box-shadow-sm:               0 .125rem .25rem rgba($black, .075) !default;
+$box-shadow:                  0 .5rem 1rem rgba($black, .15) !default;
+$box-shadow-lg:               0 1rem 3rem rgba($black, .175) !default;
+
+$component-active-color:      $white !default;
+$component-active-bg:         theme-color("primary") !default;
+
+$caret-width:                 .3em !default;
+$caret-vertical-align:        $caret-width * .85 !default;
+$caret-spacing:               $caret-width * .85 !default;
+
+$transition-base:             all .2s ease-in-out !default;
+$transition-fade:             opacity .15s linear !default;
+$transition-collapse:         height .35s ease !default;
+
+$embed-responsive-aspect-ratios: () !default;
+$embed-responsive-aspect-ratios: join(
+  (
+    (21 9),
+    (16 9),
+    (4 3),
+    (1 1),
+  ),
+  $embed-responsive-aspect-ratios
+);
+
+// Typography
+//
+// Font, line-height, and color for body text, headings, and more.
+
+// stylelint-disable value-keyword-case
+$font-family-sans-serif:      -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji" !default;
+$font-family-monospace:       SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace !default;
+$font-family-base:            $font-family-sans-serif !default;
+// stylelint-enable value-keyword-case
+
+$font-size-base:              1rem !default; // Assumes the browser default, typically `16px`
+$font-size-lg:                $font-size-base * 1.25 !default;
+$font-size-sm:                $font-size-base * .875 !default;
+
+$font-weight-lighter:         lighter !default;
+$font-weight-light:           300 !default;
+$font-weight-normal:          400 !default;
+$font-weight-bold:            700 !default;
+$font-weight-bolder:          bolder !default;
+
+$font-weight-base:            $font-weight-normal !default;
+$line-height-base:            1.5 !default;
+
+$h1-font-size:                $font-size-base * 2.5 !default;
+$h2-font-size:                $font-size-base * 2 !default;
+$h3-font-size:                $font-size-base * 1.75 !default;
+$h4-font-size:                $font-size-base * 1.5 !default;
+$h5-font-size:                $font-size-base * 1.25 !default;
+$h6-font-size:                $font-size-base !default;
+
+$headings-margin-bottom:      $spacer * .5 !default;
+$headings-font-family:        null !default;
+$headings-font-weight:        500 !default;
+$headings-line-height:        1.2 !default;
+$headings-color:              null !default;
+
+$display1-size:               6rem !default;
+$display2-size:               5.5rem !default;
+$display3-size:               4.5rem !default;
+$display4-size:               3.5rem !default;
+
+$display1-weight:             300 !default;
+$display2-weight:             300 !default;
+$display3-weight:             300 !default;
+$display4-weight:             300 !default;
+$display-line-height:         $headings-line-height !default;
+
+$lead-font-size:              $font-size-base * 1.25 !default;
+$lead-font-weight:            300 !default;
+
+$small-font-size:             80% !default;
+
+$text-muted:                  $gray-600 !default;
+
+$blockquote-small-color:      $gray-600 !default;
+$blockquote-small-font-size:  $small-font-size !default;
+$blockquote-font-size:        $font-size-base * 1.25 !default;
+
+$hr-border-color:             rgba($black, .1) !default;
+$hr-border-width:             $border-width !default;
+
+$mark-padding:                .2em !default;
+
+$dt-font-weight:              $font-weight-bold !default;
+
+$kbd-box-shadow:              inset 0 -.1rem 0 rgba($black, .25) !default;
+$nested-kbd-font-weight:      $font-weight-bold !default;
+
+$list-inline-padding:         .5rem !default;
+
+$mark-bg:                     #fcf8e3 !default;
+
+$hr-margin-y:                 $spacer !default;
+
+
+// Tables
+//
+// Customizes the `.table` component with basic values, each used across all table variations.
+
+$table-cell-padding:          .75rem !default;
+$table-cell-padding-sm:       .3rem !default;
+
+$table-color:                 $body-color !default;
+$table-bg:                    null !default;
+$table-accent-bg:             rgba($black, .05) !default;
+$table-hover-color:           $table-color !default;
+$table-hover-bg:              rgba($black, .075) !default;
+$table-active-bg:             $table-hover-bg !default;
+
+$table-border-width:          $border-width !default;
+$table-border-color:          $border-color !default;
+
+$table-head-bg:               $gray-200 !default;
+$table-head-color:            $gray-700 !default;
+$table-th-font-weight:        null !default;
+
+$table-dark-color:            $white !default;
+$table-dark-bg:               $gray-800 !default;
+$table-dark-accent-bg:        rgba($white, .05) !default;
+$table-dark-hover-color:      $table-dark-color !default;
+$table-dark-hover-bg:         rgba($white, .075) !default;
+$table-dark-border-color:     lighten($table-dark-bg, 7.5%) !default;
+
+$table-striped-order:         odd !default;
+
+$table-caption-color:         $text-muted !default;
+
+$table-bg-level:              -9 !default;
+$table-border-level:          -6 !default;
+
+
+// Buttons + Forms
+//
+// Shared variables that are reassigned to `$input-` and `$btn-` specific variables.
+
+$input-btn-padding-y:         .375rem !default;
+$input-btn-padding-x:         .75rem !default;
+$input-btn-font-family:       null !default;
+$input-btn-font-size:         $font-size-base !default;
+$input-btn-line-height:       $line-height-base !default;
+
+$input-btn-focus-width:       .2rem !default;
+$input-btn-focus-color:       rgba($component-active-bg, .25) !default;
+$input-btn-focus-box-shadow:  0 0 0 $input-btn-focus-width $input-btn-focus-color !default;
+
+$input-btn-padding-y-sm:      .25rem !default;
+$input-btn-padding-x-sm:      .5rem !default;
+$input-btn-font-size-sm:      $font-size-sm !default;
+$input-btn-line-height-sm:    $line-height-sm !default;
+
+$input-btn-padding-y-lg:      .5rem !default;
+$input-btn-padding-x-lg:      1rem !default;
+$input-btn-font-size-lg:      $font-size-lg !default;
+$input-btn-line-height-lg:    $line-height-lg !default;
+
+$input-btn-border-width:      $border-width !default;
+
+
+// Buttons
+//
+// For each of Bootstrap's buttons, define text, background, and border color.
+
+$btn-padding-y:               $input-btn-padding-y !default;
+$btn-padding-x:               $input-btn-padding-x !default;
+$btn-font-family:             $input-btn-font-family !default;
+$btn-font-size:               $input-btn-font-size !default;
+$btn-line-height:             $input-btn-line-height !default;
+$btn-white-space:             null !default; // Set to `nowrap` to prevent text wrapping
+
+$btn-padding-y-sm:            $input-btn-padding-y-sm !default;
+$btn-padding-x-sm:            $input-btn-padding-x-sm !default;
+$btn-font-size-sm:            $input-btn-font-size-sm !default;
+$btn-line-height-sm:          $input-btn-line-height-sm !default;
+
+$btn-padding-y-lg:            $input-btn-padding-y-lg !default;
+$btn-padding-x-lg:            $input-btn-padding-x-lg !default;
+$btn-font-size-lg:            $input-btn-font-size-lg !default;
+$btn-line-height-lg:          $input-btn-line-height-lg !default;
+
+$btn-border-width:            $input-btn-border-width !default;
+
+$btn-font-weight:             $font-weight-normal !default;
+$btn-box-shadow:              inset 0 1px 0 rgba($white, .15), 0 1px 1px rgba($black, .075) !default;
+$btn-focus-width:             $input-btn-focus-width !default;
+$btn-focus-box-shadow:        $input-btn-focus-box-shadow !default;
+$btn-disabled-opacity:        .65 !default;
+$btn-active-box-shadow:       inset 0 3px 5px rgba($black, .125) !default;
+
+$btn-link-disabled-color:     $gray-600 !default;
+
+$btn-block-spacing-y:         .5rem !default;
+
+// Allows for customizing button radius independently from global border radius
+$btn-border-radius:           $border-radius !default;
+$btn-border-radius-lg:        $border-radius-lg !default;
+$btn-border-radius-sm:        $border-radius-sm !default;
+
+$btn-transition:              color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out !default;
+
+
+// Forms
+
+$label-margin-bottom:                   .5rem !default;
+
+$input-padding-y:                       $input-btn-padding-y !default;
+$input-padding-x:                       $input-btn-padding-x !default;
+$input-font-family:                     $input-btn-font-family !default;
+$input-font-size:                       $input-btn-font-size !default;
+$input-font-weight:                     $font-weight-base !default;
+$input-line-height:                     $input-btn-line-height !default;
+
+$input-padding-y-sm:                    $input-btn-padding-y-sm !default;
+$input-padding-x-sm:                    $input-btn-padding-x-sm !default;
+$input-font-size-sm:                    $input-btn-font-size-sm !default;
+$input-line-height-sm:                  $input-btn-line-height-sm !default;
+
+$input-padding-y-lg:                    $input-btn-padding-y-lg !default;
+$input-padding-x-lg:                    $input-btn-padding-x-lg !default;
+$input-font-size-lg:                    $input-btn-font-size-lg !default;
+$input-line-height-lg:                  $input-btn-line-height-lg !default;
+
+$input-bg:                              $white !default;
+$input-disabled-bg:                     $gray-200 !default;
+
+$input-color:                           $gray-700 !default;
+$input-border-color:                    $gray-400 !default;
+$input-border-width:                    $input-btn-border-width !default;
+$input-box-shadow:                      inset 0 1px 1px rgba($black, .075) !default;
+
+$input-border-radius:                   $border-radius !default;
+$input-border-radius-lg:                $border-radius-lg !default;
+$input-border-radius-sm:                $border-radius-sm !default;
+
+$input-focus-bg:                        $input-bg !default;
+$input-focus-border-color:              lighten($component-active-bg, 25%) !default;
+$input-focus-color:                     $input-color !default;
+$input-focus-width:                     $input-btn-focus-width !default;
+$input-focus-box-shadow:                $input-btn-focus-box-shadow !default;
+
+$input-placeholder-color:               $gray-600 !default;
+$input-plaintext-color:                 $body-color !default;
+
+$input-height-border:                   $input-border-width * 2 !default;
+
+$input-height-inner:                    add($input-line-height * 1em, $input-padding-y * 2) !default;
+$input-height-inner-half:               add($input-line-height * .5em, $input-padding-y) !default;
+$input-height-inner-quarter:            add($input-line-height * .25em, $input-padding-y * .5) !default;
+
+$input-height:                          add($input-line-height * 1em, add($input-padding-y * 2, $input-height-border, false)) !default;
+$input-height-sm:                       add($input-line-height-sm * 1em, add($input-padding-y-sm * 2, $input-height-border, false)) !default;
+$input-height-lg:                       add($input-line-height-lg * 1em, add($input-padding-y-lg * 2, $input-height-border, false)) !default;
+
+$input-transition:                      border-color .15s ease-in-out, box-shadow .15s ease-in-out !default;
+
+$form-text-margin-top:                  .25rem !default;
+
+$form-check-input-gutter:               1.25rem !default;
+$form-check-input-margin-y:             .3rem !default;
+$form-check-input-margin-x:             .25rem !default;
+
+$form-check-inline-margin-x:            .75rem !default;
+$form-check-inline-input-margin-x:      .3125rem !default;
+
+$form-grid-gutter-width:                10px !default;
+$form-group-margin-bottom:              1rem !default;
+
+$input-group-addon-color:               $input-color !default;
+$input-group-addon-bg:                  $gray-200 !default;
+$input-group-addon-border-color:        $input-border-color !default;
+
+$custom-forms-transition:               background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out !default;
+
+$custom-control-gutter:                 .5rem !default;
+$custom-control-spacer-x:               1rem !default;
+$custom-control-cursor:                 null !default;
+
+$custom-control-indicator-size:         1rem !default;
+$custom-control-indicator-bg:           $input-bg !default;
+
+$custom-control-indicator-bg-size:      50% 50% !default;
+$custom-control-indicator-box-shadow:   $input-box-shadow !default;
+$custom-control-indicator-border-color: $gray-500 !default;
+$custom-control-indicator-border-width: $input-border-width !default;
+
+$custom-control-label-color:            null !default;
+
+$custom-control-indicator-disabled-bg:          $input-disabled-bg !default;
+$custom-control-label-disabled-color:           $gray-600 !default;
+
+$custom-control-indicator-checked-color:        $component-active-color !default;
+$custom-control-indicator-checked-bg:           $component-active-bg !default;
+$custom-control-indicator-checked-disabled-bg:  rgba(theme-color("primary"), .5) !default;
+$custom-control-indicator-checked-box-shadow:   null !default;
+$custom-control-indicator-checked-border-color: $custom-control-indicator-checked-bg !default;
+
+$custom-control-indicator-focus-box-shadow:     $input-focus-box-shadow !default;
+$custom-control-indicator-focus-border-color:   $input-focus-border-color !default;
+
+$custom-control-indicator-active-color:         $component-active-color !default;
+$custom-control-indicator-active-bg:            lighten($component-active-bg, 35%) !default;
+$custom-control-indicator-active-box-shadow:    null !default;
+$custom-control-indicator-active-border-color:  $custom-control-indicator-active-bg !default;
+
+$custom-checkbox-indicator-border-radius:       $border-radius !default;
+$custom-checkbox-indicator-icon-checked:        url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='8' height='8' viewBox='0 0 8 8'><path fill='#{$custom-control-indicator-checked-color}' d='M6.564.75l-3.59 3.612-1.538-1.55L0 4.26l2.974 2.99L8 2.193z'/></svg>") !default;
+
+$custom-checkbox-indicator-indeterminate-bg:           $component-active-bg !default;
+$custom-checkbox-indicator-indeterminate-color:        $custom-control-indicator-checked-color !default;
+$custom-checkbox-indicator-icon-indeterminate:         url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='4' height='4' viewBox='0 0 4 4'><path stroke='#{$custom-checkbox-indicator-indeterminate-color}' d='M0 2h4'/></svg>") !default;
+$custom-checkbox-indicator-indeterminate-box-shadow:   null !default;
+$custom-checkbox-indicator-indeterminate-border-color: $custom-checkbox-indicator-indeterminate-bg !default;
+
+$custom-radio-indicator-border-radius:          50% !default;
+$custom-radio-indicator-icon-checked:           url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='-4 -4 8 8'><circle r='3' fill='#{$custom-control-indicator-checked-color}'/></svg>") !default;
+
+$custom-switch-width:                           $custom-control-indicator-size * 1.75 !default;
+$custom-switch-indicator-border-radius:         $custom-control-indicator-size * .5 !default;
+$custom-switch-indicator-size:                  subtract($custom-control-indicator-size, $custom-control-indicator-border-width * 4) !default;
+
+$custom-select-padding-y:           $input-padding-y !default;
+$custom-select-padding-x:           $input-padding-x !default;
+$custom-select-font-family:         $input-font-family !default;
+$custom-select-font-size:           $input-font-size !default;
+$custom-select-height:              $input-height !default;
+$custom-select-indicator-padding:   1rem !default; // Extra padding to account for the presence of the background-image based indicator
+$custom-select-font-weight:         $input-font-weight !default;
+$custom-select-line-height:         $input-line-height !default;
+$custom-select-color:               $input-color !default;
+$custom-select-disabled-color:      $gray-600 !default;
+$custom-select-bg:                  $input-bg !default;
+$custom-select-disabled-bg:         $gray-200 !default;
+$custom-select-bg-size:             8px 10px !default; // In pixels because image dimensions
+$custom-select-indicator-color:     $gray-800 !default;
+$custom-select-indicator:           url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='4' height='5' viewBox='0 0 4 5'><path fill='#{$custom-select-indicator-color}' d='M2 0L0 2h4zm0 5L0 3h4z'/></svg>") !default;
+$custom-select-background:          escape-svg($custom-select-indicator) right $custom-select-padding-x center / $custom-select-bg-size no-repeat !default; // Used so we can have multiple background elements (e.g., arrow and feedback icon)
+
+$custom-select-feedback-icon-padding-right: add(1em * .75, (2 * $custom-select-padding-y * .75) + $custom-select-padding-x + $custom-select-indicator-padding) !default;
+$custom-select-feedback-icon-position:      center right ($custom-select-padding-x + $custom-select-indicator-padding) !default;
+$custom-select-feedback-icon-size:          $input-height-inner-half $input-height-inner-half !default;
+
+$custom-select-border-width:        $input-border-width !default;
+$custom-select-border-color:        $input-border-color !default;
+$custom-select-border-radius:       $border-radius !default;
+$custom-select-box-shadow:          inset 0 1px 2px rgba($black, .075) !default;
+
+$custom-select-focus-border-color:  $input-focus-border-color !default;
+$custom-select-focus-width:         $input-focus-width !default;
+$custom-select-focus-box-shadow:    0 0 0 $custom-select-focus-width $input-btn-focus-color !default;
+
+$custom-select-padding-y-sm:        $input-padding-y-sm !default;
+$custom-select-padding-x-sm:        $input-padding-x-sm !default;
+$custom-select-font-size-sm:        $input-font-size-sm !default;
+$custom-select-height-sm:           $input-height-sm !default;
+
+$custom-select-padding-y-lg:        $input-padding-y-lg !default;
+$custom-select-padding-x-lg:        $input-padding-x-lg !default;
+$custom-select-font-size-lg:        $input-font-size-lg !default;
+$custom-select-height-lg:           $input-height-lg !default;
+
+$custom-range-track-width:          100% !default;
+$custom-range-track-height:         .5rem !default;
+$custom-range-track-cursor:         pointer !default;
+$custom-range-track-bg:             $gray-300 !default;
+$custom-range-track-border-radius:  1rem !default;
+$custom-range-track-box-shadow:     inset 0 .25rem .25rem rgba($black, .1) !default;
+
+$custom-range-thumb-width:                   1rem !default;
+$custom-range-thumb-height:                  $custom-range-thumb-width !default;
+$custom-range-thumb-bg:                      $component-active-bg !default;
+$custom-range-thumb-border:                  0 !default;
+$custom-range-thumb-border-radius:           1rem !default;
+$custom-range-thumb-box-shadow:              0 .1rem .25rem rgba($black, .1) !default;
+$custom-range-thumb-focus-box-shadow:        0 0 0 1px $body-bg, $input-focus-box-shadow !default;
+$custom-range-thumb-focus-box-shadow-width:  $input-focus-width !default; // For focus box shadow issue in IE/Edge
+$custom-range-thumb-active-bg:               lighten($component-active-bg, 35%) !default;
+$custom-range-thumb-disabled-bg:             $gray-500 !default;
+
+$custom-file-height:                $input-height !default;
+$custom-file-height-inner:          $input-height-inner !default;
+$custom-file-focus-border-color:    $input-focus-border-color !default;
+$custom-file-focus-box-shadow:      $input-focus-box-shadow !default;
+$custom-file-disabled-bg:           $input-disabled-bg !default;
+
+$custom-file-padding-y:             $input-padding-y !default;
+$custom-file-padding-x:             $input-padding-x !default;
+$custom-file-line-height:           $input-line-height !default;
+$custom-file-font-family:           $input-font-family !default;
+$custom-file-font-weight:           $input-font-weight !default;
+$custom-file-color:                 $input-color !default;
+$custom-file-bg:                    $input-bg !default;
+$custom-file-border-width:          $input-border-width !default;
+$custom-file-border-color:          $input-border-color !default;
+$custom-file-border-radius:         $input-border-radius !default;
+$custom-file-box-shadow:            $input-box-shadow !default;
+$custom-file-button-color:          $custom-file-color !default;
+$custom-file-button-bg:             $input-group-addon-bg !default;
+$custom-file-text: (
+  en: "Browse"
+) !default;
+
+
+// Form validation
+
+$form-feedback-margin-top:          $form-text-margin-top !default;
+$form-feedback-font-size:           $small-font-size !default;
+$form-feedback-valid-color:         theme-color("success") !default;
+$form-feedback-invalid-color:       theme-color("danger") !default;
+
+$form-feedback-icon-valid-color:    $form-feedback-valid-color !default;
+$form-feedback-icon-valid:          url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='8' height='8' viewBox='0 0 8 8'><path fill='#{$form-feedback-icon-valid-color}' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/></svg>") !default;
+$form-feedback-icon-invalid-color:  $form-feedback-invalid-color !default;
+$form-feedback-icon-invalid:        url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='#{$form-feedback-icon-invalid-color}' viewBox='0 0 12 12'><circle cx='6' cy='6' r='4.5'/><path stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/><circle cx='6' cy='8.2' r='.6' fill='#{$form-feedback-icon-invalid-color}' stroke='none'/></svg>") !default;
+
+$form-validation-states: () !default;
+$form-validation-states: map-merge(
+  (
+    "valid": (
+      "color": $form-feedback-valid-color,
+      "icon": $form-feedback-icon-valid
+    ),
+    "invalid": (
+      "color": $form-feedback-invalid-color,
+      "icon": $form-feedback-icon-invalid
+    ),
+  ),
+  $form-validation-states
+);
+
+// Z-index master list
+//
+// Warning: Avoid customizing these values. They're used for a bird's eye view
+// of components dependent on the z-axis and are designed to all work together.
+
+$zindex-dropdown:                   1000 !default;
+$zindex-sticky:                     1020 !default;
+$zindex-fixed:                      1030 !default;
+$zindex-modal-backdrop:             1040 !default;
+$zindex-modal:                      1050 !default;
+$zindex-popover:                    1060 !default;
+$zindex-tooltip:                    1070 !default;
+
+
+// Navs
+
+$nav-link-padding-y:                .5rem !default;
+$nav-link-padding-x:                1rem !default;
+$nav-link-disabled-color:           $gray-600 !default;
+
+$nav-tabs-border-color:             $gray-300 !default;
+$nav-tabs-border-width:             $border-width !default;
+$nav-tabs-border-radius:            $border-radius !default;
+$nav-tabs-link-hover-border-color:  $gray-200 $gray-200 $nav-tabs-border-color !default;
+$nav-tabs-link-active-color:        $gray-700 !default;
+$nav-tabs-link-active-bg:           $body-bg !default;
+$nav-tabs-link-active-border-color: $gray-300 $gray-300 $nav-tabs-link-active-bg !default;
+
+$nav-pills-border-radius:           $border-radius !default;
+$nav-pills-link-active-color:       $component-active-color !default;
+$nav-pills-link-active-bg:          $component-active-bg !default;
+
+$nav-divider-color:                 $gray-200 !default;
+$nav-divider-margin-y:              $spacer * .5 !default;
+
+
+// Navbar
+
+$navbar-padding-y:                  $spacer * .5 !default;
+$navbar-padding-x:                  $spacer !default;
+
+$navbar-nav-link-padding-x:         .5rem !default;
+
+$navbar-brand-font-size:            $font-size-lg !default;
+// Compute the navbar-brand padding-y so the navbar-brand will have the same height as navbar-text and nav-link
+$nav-link-height:                   $font-size-base * $line-height-base + $nav-link-padding-y * 2 !default;
+$navbar-brand-height:               $navbar-brand-font-size * $line-height-base !default;
+$navbar-brand-padding-y:            ($nav-link-height - $navbar-brand-height) * .5 !default;
+
+$navbar-toggler-padding-y:          .25rem !default;
+$navbar-toggler-padding-x:          .75rem !default;
+$navbar-toggler-font-size:          $font-size-lg !default;
+$navbar-toggler-border-radius:      $btn-border-radius !default;
+
+$navbar-nav-scroll-max-height:      75vh !default;
+
+$navbar-dark-color:                 rgba($white, .5) !default;
+$navbar-dark-hover-color:           rgba($white, .75) !default;
+$navbar-dark-active-color:          $white !default;
+$navbar-dark-disabled-color:        rgba($white, .25) !default;
+$navbar-dark-toggler-icon-bg:       url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='30' height='30' viewBox='0 0 30 30'><path stroke='#{$navbar-dark-color}' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/></svg>") !default;
+$navbar-dark-toggler-border-color:  rgba($white, .1) !default;
+
+$navbar-light-color:                rgba($black, .5) !default;
+$navbar-light-hover-color:          rgba($black, .7) !default;
+$navbar-light-active-color:         rgba($black, .9) !default;
+$navbar-light-disabled-color:       rgba($black, .3) !default;
+$navbar-light-toggler-icon-bg:      url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='30' height='30' viewBox='0 0 30 30'><path stroke='#{$navbar-light-color}' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/></svg>") !default;
+$navbar-light-toggler-border-color: rgba($black, .1) !default;
+
+$navbar-light-brand-color:                $navbar-light-active-color !default;
+$navbar-light-brand-hover-color:          $navbar-light-active-color !default;
+$navbar-dark-brand-color:                 $navbar-dark-active-color !default;
+$navbar-dark-brand-hover-color:           $navbar-dark-active-color !default;
+
+
+// Dropdowns
+//
+// Dropdown menu container and contents.
+
+$dropdown-min-width:                10rem !default;
+$dropdown-padding-x:                0 !default;
+$dropdown-padding-y:                .5rem !default;
+$dropdown-spacer:                   .125rem !default;
+$dropdown-font-size:                $font-size-base !default;
+$dropdown-color:                    $body-color !default;
+$dropdown-bg:                       $white !default;
+$dropdown-border-color:             rgba($black, .15) !default;
+$dropdown-border-radius:            $border-radius !default;
+$dropdown-border-width:             $border-width !default;
+$dropdown-inner-border-radius:      subtract($dropdown-border-radius, $dropdown-border-width) !default;
+$dropdown-divider-bg:               $gray-200 !default;
+$dropdown-divider-margin-y:         $nav-divider-margin-y !default;
+$dropdown-box-shadow:               0 .5rem 1rem rgba($black, .175) !default;
+
+$dropdown-link-color:               $gray-900 !default;
+$dropdown-link-hover-color:         darken($gray-900, 5%) !default;
+$dropdown-link-hover-bg:            $gray-200 !default;
+
+$dropdown-link-active-color:        $component-active-color !default;
+$dropdown-link-active-bg:           $component-active-bg !default;
+
+$dropdown-link-disabled-color:      $gray-500 !default;
+
+$dropdown-item-padding-y:           .25rem !default;
+$dropdown-item-padding-x:           1.5rem !default;
+
+$dropdown-header-color:             $gray-600 !default;
+$dropdown-header-padding:           $dropdown-padding-y $dropdown-item-padding-x !default;
+
+
+// Pagination
+
+$pagination-padding-y:              .5rem !default;
+$pagination-padding-x:              .75rem !default;
+$pagination-padding-y-sm:           .25rem !default;
+$pagination-padding-x-sm:           .5rem !default;
+$pagination-padding-y-lg:           .75rem !default;
+$pagination-padding-x-lg:           1.5rem !default;
+$pagination-line-height:            1.25 !default;
+
+$pagination-color:                  $link-color !default;
+$pagination-bg:                     $white !default;
+$pagination-border-width:           $border-width !default;
+$pagination-border-color:           $gray-300 !default;
+
+$pagination-focus-box-shadow:       $input-btn-focus-box-shadow !default;
+$pagination-focus-outline:          0 !default;
+
+$pagination-hover-color:            $link-hover-color !default;
+$pagination-hover-bg:               $gray-200 !default;
+$pagination-hover-border-color:     $gray-300 !default;
+
+$pagination-active-color:           $component-active-color !default;
+$pagination-active-bg:              $component-active-bg !default;
+$pagination-active-border-color:    $pagination-active-bg !default;
+
+$pagination-disabled-color:         $gray-600 !default;
+$pagination-disabled-bg:            $white !default;
+$pagination-disabled-border-color:  $gray-300 !default;
+
+$pagination-border-radius-sm:       $border-radius-sm !default;
+$pagination-border-radius-lg:       $border-radius-lg !default;
+
+
+// Jumbotron
+
+$jumbotron-padding:                 2rem !default;
+$jumbotron-color:                   null !default;
+$jumbotron-bg:                      $gray-200 !default;
+
+
+// Cards
+
+$card-spacer-y:                     .75rem !default;
+$card-spacer-x:                     1.25rem !default;
+$card-border-width:                 $border-width !default;
+$card-border-radius:                $border-radius !default;
+$card-border-color:                 rgba($black, .125) !default;
+$card-inner-border-radius:          subtract($card-border-radius, $card-border-width) !default;
+$card-cap-bg:                       rgba($black, .03) !default;
+$card-cap-color:                    null !default;
+$card-height:                       null !default;
+$card-color:                        null !default;
+$card-bg:                           $white !default;
+
+$card-img-overlay-padding:          1.25rem !default;
+
+$card-group-margin:                 $grid-gutter-width * .5 !default;
+$card-deck-margin:                  $card-group-margin !default;
+
+$card-columns-count:                3 !default;
+$card-columns-gap:                  1.25rem !default;
+$card-columns-margin:               $card-spacer-y !default;
+
+
+// Tooltips
+
+$tooltip-font-size:                 $font-size-sm !default;
+$tooltip-max-width:                 200px !default;
+$tooltip-color:                     $white !default;
+$tooltip-bg:                        $black !default;
+$tooltip-border-radius:             $border-radius !default;
+$tooltip-opacity:                   .9 !default;
+$tooltip-padding-y:                 .25rem !default;
+$tooltip-padding-x:                 .5rem !default;
+$tooltip-margin:                    0 !default;
+
+$tooltip-arrow-width:               .8rem !default;
+$tooltip-arrow-height:              .4rem !default;
+$tooltip-arrow-color:               $tooltip-bg !default;
+
+// Form tooltips must come after regular tooltips
+$form-feedback-tooltip-padding-y:     $tooltip-padding-y !default;
+$form-feedback-tooltip-padding-x:     $tooltip-padding-x !default;
+$form-feedback-tooltip-font-size:     $tooltip-font-size !default;
+$form-feedback-tooltip-line-height:   $line-height-base !default;
+$form-feedback-tooltip-opacity:       $tooltip-opacity !default;
+$form-feedback-tooltip-border-radius: $tooltip-border-radius !default;
+
+
+// Popovers
+
+$popover-font-size:                 $font-size-sm !default;
+$popover-bg:                        $white !default;
+$popover-max-width:                 276px !default;
+$popover-border-width:              $border-width !default;
+$popover-border-color:              rgba($black, .2) !default;
+$popover-border-radius:             $border-radius-lg !default;
+$popover-inner-border-radius:       subtract($popover-border-radius, $popover-border-width) !default;
+$popover-box-shadow:                0 .25rem .5rem rgba($black, .2) !default;
+
+$popover-header-bg:                 darken($popover-bg, 3%) !default;
+$popover-header-color:              $headings-color !default;
+$popover-header-padding-y:          .5rem !default;
+$popover-header-padding-x:          .75rem !default;
+
+$popover-body-color:                $body-color !default;
+$popover-body-padding-y:            $popover-header-padding-y !default;
+$popover-body-padding-x:            $popover-header-padding-x !default;
+
+$popover-arrow-width:               1rem !default;
+$popover-arrow-height:              .5rem !default;
+$popover-arrow-color:               $popover-bg !default;
+
+$popover-arrow-outer-color:         fade-in($popover-border-color, .05) !default;
+
+
+// Toasts
+
+$toast-max-width:                   350px !default;
+$toast-padding-x:                   .75rem !default;
+$toast-padding-y:                   .25rem !default;
+$toast-font-size:                   .875rem !default;
+$toast-color:                       null !default;
+$toast-background-color:            rgba($white, .85) !default;
+$toast-border-width:                1px !default;
+$toast-border-color:                rgba(0, 0, 0, .1) !default;
+$toast-border-radius:               .25rem !default;
+$toast-box-shadow:                  0 .25rem .75rem rgba($black, .1) !default;
+
+$toast-header-color:                $gray-600 !default;
+$toast-header-background-color:     rgba($white, .85) !default;
+$toast-header-border-color:         rgba(0, 0, 0, .05) !default;
+
+
+// Badges
+
+$badge-font-size:                   75% !default;
+$badge-font-weight:                 $font-weight-bold !default;
+$badge-padding-y:                   .25em !default;
+$badge-padding-x:                   .4em !default;
+$badge-border-radius:               $border-radius !default;
+
+$badge-transition:                  $btn-transition !default;
+$badge-focus-width:                 $input-btn-focus-width !default;
+
+$badge-pill-padding-x:              .6em !default;
+// Use a higher than normal value to ensure completely rounded edges when
+// customizing padding or font-size on labels.
+$badge-pill-border-radius:          10rem !default;
+
+
+// Modals
+
+// Padding applied to the modal body
+$modal-inner-padding:               1rem !default;
+
+// Margin between elements in footer, must be lower than or equal to 2 * $modal-inner-padding
+$modal-footer-margin-between:       .5rem !default;
+
+$modal-dialog-margin:               .5rem !default;
+$modal-dialog-margin-y-sm-up:       1.75rem !default;
+
+$modal-title-line-height:           $line-height-base !default;
+
+$modal-content-color:               null !default;
+$modal-content-bg:                  $white !default;
+$modal-content-border-color:        rgba($black, .2) !default;
+$modal-content-border-width:        $border-width !default;
+$modal-content-border-radius:       $border-radius-lg !default;
+$modal-content-inner-border-radius: subtract($modal-content-border-radius, $modal-content-border-width) !default;
+$modal-content-box-shadow-xs:       0 .25rem .5rem rgba($black, .5) !default;
+$modal-content-box-shadow-sm-up:    0 .5rem 1rem rgba($black, .5) !default;
+
+$modal-backdrop-bg:                 $black !default;
+$modal-backdrop-opacity:            .5 !default;
+$modal-header-border-color:         $border-color !default;
+$modal-footer-border-color:         $modal-header-border-color !default;
+$modal-header-border-width:         $modal-content-border-width !default;
+$modal-footer-border-width:         $modal-header-border-width !default;
+$modal-header-padding-y:            1rem !default;
+$modal-header-padding-x:            1rem !default;
+$modal-header-padding:              $modal-header-padding-y $modal-header-padding-x !default; // Keep this for backwards compatibility
+
+$modal-xl:                          1140px !default;
+$modal-lg:                          800px !default;
+$modal-md:                          500px !default;
+$modal-sm:                          300px !default;
+
+$modal-fade-transform:              translate(0, -50px) !default;
+$modal-show-transform:              none !default;
+$modal-transition:                  transform .3s ease-out !default;
+$modal-scale-transform:             scale(1.02) !default;
+
+
+// Alerts
+//
+// Define alert colors, border radius, and padding.
+
+$alert-padding-y:                   .75rem !default;
+$alert-padding-x:                   1.25rem !default;
+$alert-margin-bottom:               1rem !default;
+$alert-border-radius:               $border-radius !default;
+$alert-link-font-weight:            $font-weight-bold !default;
+$alert-border-width:                $border-width !default;
+
+$alert-bg-level:                    -10 !default;
+$alert-border-level:                -9 !default;
+$alert-color-level:                 6 !default;
+
+
+// Progress bars
+
+$progress-height:                   1rem !default;
+$progress-font-size:                $font-size-base * .75 !default;
+$progress-bg:                       $gray-200 !default;
+$progress-border-radius:            $border-radius !default;
+$progress-box-shadow:               inset 0 .1rem .1rem rgba($black, .1) !default;
+$progress-bar-color:                $white !default;
+$progress-bar-bg:                   theme-color("primary") !default;
+$progress-bar-animation-timing:     1s linear infinite !default;
+$progress-bar-transition:           width .6s ease !default;
+
+
+// List group
+
+$list-group-color:                  null !default;
+$list-group-bg:                     $white !default;
+$list-group-border-color:           rgba($black, .125) !default;
+$list-group-border-width:           $border-width !default;
+$list-group-border-radius:          $border-radius !default;
+
+$list-group-item-padding-y:         .75rem !default;
+$list-group-item-padding-x:         1.25rem !default;
+
+$list-group-hover-bg:               $gray-100 !default;
+$list-group-active-color:           $component-active-color !default;
+$list-group-active-bg:              $component-active-bg !default;
+$list-group-active-border-color:    $list-group-active-bg !default;
+
+$list-group-disabled-color:         $gray-600 !default;
+$list-group-disabled-bg:            $list-group-bg !default;
+
+$list-group-action-color:           $gray-700 !default;
+$list-group-action-hover-color:     $list-group-action-color !default;
+
+$list-group-action-active-color:    $body-color !default;
+$list-group-action-active-bg:       $gray-200 !default;
+
+
+// Image thumbnails
+
+$thumbnail-padding:                 .25rem !default;
+$thumbnail-bg:                      $body-bg !default;
+$thumbnail-border-width:            $border-width !default;
+$thumbnail-border-color:            $gray-300 !default;
+$thumbnail-border-radius:           $border-radius !default;
+$thumbnail-box-shadow:              0 1px 2px rgba($black, .075) !default;
+
+
+// Figures
+
+$figure-caption-font-size:          90% !default;
+$figure-caption-color:              $gray-600 !default;
+
+
+// Breadcrumbs
+
+$breadcrumb-font-size:              null !default;
+
+$breadcrumb-padding-y:              .75rem !default;
+$breadcrumb-padding-x:              1rem !default;
+$breadcrumb-item-padding:           .5rem !default;
+
+$breadcrumb-margin-bottom:          1rem !default;
+
+$breadcrumb-bg:                     $gray-200 !default;
+$breadcrumb-divider-color:          $gray-600 !default;
+$breadcrumb-active-color:           $gray-600 !default;
+$breadcrumb-divider:                quote("/") !default;
+
+$breadcrumb-border-radius:          $border-radius !default;
+
+
+// Carousel
+
+$carousel-control-color:             $white !default;
+$carousel-control-width:             15% !default;
+$carousel-control-opacity:           .5 !default;
+$carousel-control-hover-opacity:     .9 !default;
+$carousel-control-transition:        opacity .15s ease !default;
+
+$carousel-indicator-width:           30px !default;
+$carousel-indicator-height:          3px !default;
+$carousel-indicator-hit-area-height: 10px !default;
+$carousel-indicator-spacer:          3px !default;
+$carousel-indicator-active-bg:       $white !default;
+$carousel-indicator-transition:      opacity .6s ease !default;
+
+$carousel-caption-width:             70% !default;
+$carousel-caption-color:             $white !default;
+
+$carousel-control-icon-width:        20px !default;
+
+$carousel-control-prev-icon-bg:      url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' fill='#{$carousel-control-color}' width='8' height='8' viewBox='0 0 8 8'><path d='M5.25 0l-4 4 4 4 1.5-1.5L4.25 4l2.5-2.5L5.25 0z'/></svg>") !default;
+$carousel-control-next-icon-bg:      url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' fill='#{$carousel-control-color}' width='8' height='8' viewBox='0 0 8 8'><path d='M2.75 0l-1.5 1.5L3.75 4l-2.5 2.5L2.75 8l4-4-4-4z'/></svg>") !default;
+
+$carousel-transition-duration:       .6s !default;
+$carousel-transition:                transform $carousel-transition-duration ease-in-out !default; // Define transform transition first if using multiple transitions (e.g., `transform 2s ease, opacity .5s ease-out`)
+
+
+// Spinners
+
+$spinner-width:           2rem !default;
+$spinner-height:          $spinner-width !default;
+$spinner-vertical-align:  -.125em !default;
+$spinner-border-width:    .25em !default;
+
+$spinner-width-sm:        1rem !default;
+$spinner-height-sm:       $spinner-width-sm !default;
+$spinner-border-width-sm: .2em !default;
+
+
+// Close
+
+$close-font-size:                   $font-size-base * 1.5 !default;
+$close-font-weight:                 $font-weight-bold !default;
+$close-color:                       $black !default;
+$close-text-shadow:                 0 1px 0 $white !default;
+
+
+// Code
+
+$code-font-size:                    87.5% !default;
+$code-color:                        $pink !default;
+
+$kbd-padding-y:                     .2rem !default;
+$kbd-padding-x:                     .4rem !default;
+$kbd-font-size:                     $code-font-size !default;
+$kbd-color:                         $white !default;
+$kbd-bg:                            $gray-900 !default;
+
+$pre-color:                         $gray-900 !default;
+$pre-scrollable-max-height:         340px !default;
+
+
+// Utilities
+
+$displays: none, inline, inline-block, block, table, table-row, table-cell, flex, inline-flex !default;
+$overflows: auto, hidden !default;
+$positions: static, relative, absolute, fixed, sticky !default;
+$user-selects: all, auto, none !default;
+
+
+// Printing
+
+$print-page-size:                   a3 !default;
+$print-body-min-width:              map-get($grid-breakpoints, "lg") !default;
diff --git a/css/bootstrap/alerts.less b/css/bootstrap/alerts.less
deleted file mode 100644
index c4199db..0000000
--- a/css/bootstrap/alerts.less
+++ /dev/null
@@ -1,73 +0,0 @@
-//
-// Alerts
-// --------------------------------------------------
-
-
-// Base styles
-// -------------------------
-
-.alert {
-  padding: @alert-padding;
-  margin-bottom: @line-height-computed;
-  border: 1px solid transparent;
-  border-radius: @alert-border-radius;
-
-  // Headings for larger alerts
-  h4 {
-    margin-top: 0;
-    // Specified for the h4 to prevent conflicts of changing @headings-color
-    color: inherit;
-  }
-
-  // Provide class for links that match alerts
-  .alert-link {
-    font-weight: @alert-link-font-weight;
-  }
-
-  // Improve alignment and spacing of inner content
-  > p,
-  > ul {
-    margin-bottom: 0;
-  }
-
-  > p + p {
-    margin-top: 5px;
-  }
-}
-
-// Dismissible alerts
-//
-// Expand the right padding and account for the close button's positioning.
-
-.alert-dismissable, // The misspelled .alert-dismissable was deprecated in 3.2.0.
-.alert-dismissible {
-  padding-right: (@alert-padding + 20);
-
-  // Adjust close link position
-  .close {
-    position: relative;
-    top: -2px;
-    right: -21px;
-    color: inherit;
-  }
-}
-
-// Alternate styles
-//
-// Generate contextual modifier classes for colorizing the alert.
-
-.alert-success {
-  .alert-variant(@alert-success-bg; @alert-success-border; @alert-success-text);
-}
-
-.alert-info {
-  .alert-variant(@alert-info-bg; @alert-info-border; @alert-info-text);
-}
-
-.alert-warning {
-  .alert-variant(@alert-warning-bg; @alert-warning-border; @alert-warning-text);
-}
-
-.alert-danger {
-  .alert-variant(@alert-danger-bg; @alert-danger-border; @alert-danger-text);
-}
diff --git a/css/bootstrap/badges.less b/css/bootstrap/badges.less
deleted file mode 100644
index 6ee16dc..0000000
--- a/css/bootstrap/badges.less
+++ /dev/null
@@ -1,66 +0,0 @@
-//
-// Badges
-// --------------------------------------------------
-
-
-// Base class
-.badge {
-  display: inline-block;
-  min-width: 10px;
-  padding: 3px 7px;
-  font-size: @font-size-small;
-  font-weight: @badge-font-weight;
-  color: @badge-color;
-  line-height: @badge-line-height;
-  vertical-align: middle;
-  white-space: nowrap;
-  text-align: center;
-  background-color: @badge-bg;
-  border-radius: @badge-border-radius;
-
-  // Empty badges collapse automatically (not available in IE8)
-  &:empty {
-    display: none;
-  }
-
-  // Quick fix for badges in buttons
-  .btn & {
-    position: relative;
-    top: -1px;
-  }
-
-  .btn-xs &,
-  .btn-group-xs > .btn & {
-    top: 0;
-    padding: 1px 5px;
-  }
-
-  // Hover state, but only for links
-  a& {
-    &:hover,
-    &:focus {
-      color: @badge-link-hover-color;
-      text-decoration: none;
-      cursor: pointer;
-    }
-  }
-
-  // Account for badges in navs
-  .list-group-item.active > &,
-  .nav-pills > .active > a > & {
-    color: @badge-active-color;
-    background-color: @badge-active-bg;
-  }
-
-  .list-group-item > & {
-    float: right;
-  }
-
-  .list-group-item > & + & {
-    margin-right: 5px;
-  }
-
-  .nav-pills > li > a > & {
-    margin-left: 3px;
-  }
-}
diff --git a/css/bootstrap/bootstrap-grid.css.scss b/css/bootstrap/bootstrap-grid.css.scss
new file mode 100644
index 0000000..0de912b
--- /dev/null
+++ b/css/bootstrap/bootstrap-grid.css.scss
@@ -0,0 +1,30 @@
+/*!
+ * Bootstrap Grid v4.6.1 (https://getbootstrap.com/)
+ * Copyright 2011-2021 The Bootstrap Authors
+ * Copyright 2011-2021 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ */
+
+html {
+  box-sizing: border-box;
+  -ms-overflow-style: scrollbar;
+}
+
+*,
+*::before,
+*::after {
+  box-sizing: inherit;
+}
+
+@import "functions";
+@import "variables";
+
+@import "mixins/deprecate";
+@import "mixins/breakpoints";
+@import "mixins/grid-framework";
+@import "mixins/grid";
+
+@import "grid";
+@import "utilities/display";
+@import "utilities/flex";
+@import "utilities/spacing";
diff --git a/css/bootstrap/bootstrap-reboot.css.scss b/css/bootstrap/bootstrap-reboot.css.scss
new file mode 100644
index 0000000..aed4e37
--- /dev/null
+++ b/css/bootstrap/bootstrap-reboot.css.scss
@@ -0,0 +1,12 @@
+/*!
+ * Bootstrap Reboot v4.6.1 (https://getbootstrap.com/)
+ * Copyright 2011-2021 The Bootstrap Authors
+ * Copyright 2011-2021 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md)
+ */
+
+@import "functions";
+@import "variables";
+@import "mixins";
+@import "reboot";
diff --git a/css/bootstrap/bootstrap.css.scss b/css/bootstrap/bootstrap.css.scss
new file mode 100644
index 0000000..60bb836
--- /dev/null
+++ b/css/bootstrap/bootstrap.css.scss
@@ -0,0 +1,44 @@
+/*!
+ * Bootstrap v4.6.1 (https://getbootstrap.com/)
+ * Copyright 2011-2021 The Bootstrap Authors
+ * Copyright 2011-2021 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ */
+
+@import "functions";
+@import "variables";
+@import "mixins";
+@import "root";
+@import "reboot";
+@import "type";
+@import "images";
+@import "code";
+@import "grid";
+@import "tables";
+@import "forms";
+@import "buttons";
+@import "transitions";
+@import "dropdown";
+@import "button-group";
+@import "input-group";
+@import "custom-forms";
+@import "nav";
+@import "navbar";
+@import "card";
+@import "breadcrumb";
+@import "pagination";
+@import "badge";
+@import "jumbotron";
+@import "alert";
+@import "progress";
+@import "media";
+@import "list-group";
+@import "close";
+@import "toasts";
+@import "modal";
+@import "tooltip";
+@import "popover";
+@import "carousel";
+@import "spinners";
+@import "utilities";
+@import "print";
diff --git a/css/bootstrap/breadcrumbs.less b/css/bootstrap/breadcrumbs.less
deleted file mode 100644
index cb01d50..0000000
--- a/css/bootstrap/breadcrumbs.less
+++ /dev/null
@@ -1,26 +0,0 @@
-//
-// Breadcrumbs
-// --------------------------------------------------
-
-
-.breadcrumb {
-  padding: @breadcrumb-padding-vertical @breadcrumb-padding-horizontal;
-  margin-bottom: @line-height-computed;
-  list-style: none;
-  background-color: @breadcrumb-bg;
-  border-radius: @border-radius-base;
-
-  > li {
-    display: inline-block;
-
-    + li:before {
-      content: "@{breadcrumb-separator}\00a0"; // Unicode space added since inline-block means non-collapsing white-space
-      padding: 0 5px;
-      color: @breadcrumb-color;
-    }
-  }
-
-  > .active {
-    color: @breadcrumb-active-color;
-  }
-}
diff --git a/css/bootstrap/button-groups.less b/css/bootstrap/button-groups.less
deleted file mode 100644
index 16db0c6..0000000
--- a/css/bootstrap/button-groups.less
+++ /dev/null
@@ -1,244 +0,0 @@
-//
-// Button groups
-// --------------------------------------------------
-
-// Make the div behave like a button
-.btn-group,
-.btn-group-vertical {
-  position: relative;
-  display: inline-block;
-  vertical-align: middle; // match .btn alignment given font-size hack above
-  > .btn {
-    position: relative;
-    float: left;
-    // Bring the "active" button to the front
-    &:hover,
-    &:focus,
-    &:active,
-    &.active {
-      z-index: 2;
-    }
-  }
-}
-
-// Prevent double borders when buttons are next to each other
-.btn-group {
-  .btn + .btn,
-  .btn + .btn-group,
-  .btn-group + .btn,
-  .btn-group + .btn-group {
-    margin-left: -1px;
-  }
-}
-
-// Optional: Group multiple button groups together for a toolbar
-.btn-toolbar {
-  margin-left: -5px; // Offset the first child's margin
-  &:extend(.clearfix all);
-
-  .btn,
-  .btn-group,
-  .input-group {
-    float: left;
-  }
-  > .btn,
-  > .btn-group,
-  > .input-group {
-    margin-left: 5px;
-  }
-}
-
-.btn-group > .btn:not(:first-child):not(:last-child):not(.dropdown-toggle) {
-  border-radius: 0;
-}
-
-// Set corners individual because sometimes a single button can be in a .btn-group and we need :first-child and :last-child to both match
-.btn-group > .btn:first-child {
-  margin-left: 0;
-  &:not(:last-child):not(.dropdown-toggle) {
-    .border-right-radius(0);
-  }
-}
-// Need .dropdown-toggle since :last-child doesn't apply, given that a .dropdown-menu is used immediately after it
-.btn-group > .btn:last-child:not(:first-child),
-.btn-group > .dropdown-toggle:not(:first-child) {
-  .border-left-radius(0);
-}
-
-// Custom edits for including btn-groups within btn-groups (useful for including dropdown buttons within a btn-group)
-.btn-group > .btn-group {
-  float: left;
-}
-.btn-group > .btn-group:not(:first-child):not(:last-child) > .btn {
-  border-radius: 0;
-}
-.btn-group > .btn-group:first-child:not(:last-child) {
-  > .btn:last-child,
-  > .dropdown-toggle {
-    .border-right-radius(0);
-  }
-}
-.btn-group > .btn-group:last-child:not(:first-child) > .btn:first-child {
-  .border-left-radius(0);
-}
-
-// On active and open, don't show outline
-.btn-group .dropdown-toggle:active,
-.btn-group.open .dropdown-toggle {
-  outline: 0;
-}
-
-
-// Sizing
-//
-// Remix the default button sizing classes into new ones for easier manipulation.
-
-.btn-group-xs > .btn { &:extend(.btn-xs); }
-.btn-group-sm > .btn { &:extend(.btn-sm); }
-.btn-group-lg > .btn { &:extend(.btn-lg); }
-
-
-// Split button dropdowns
-// ----------------------
-
-// Give the line between buttons some depth
-.btn-group > .btn + .dropdown-toggle {
-  padding-left: 8px;
-  padding-right: 8px;
-}
-.btn-group > .btn-lg + .dropdown-toggle {
-  padding-left: 12px;
-  padding-right: 12px;
-}
-
-// The clickable button for toggling the menu
-// Remove the gradient and set the same inset shadow as the :active state
-.btn-group.open .dropdown-toggle {
-  .box-shadow(inset 0 3px 5px rgba(0,0,0,.125));
-
-  // Show no shadow for `.btn-link` since it has no other button styles.
-  &.btn-link {
-    .box-shadow(none);
-  }
-}
-
-
-// Reposition the caret
-.btn .caret {
-  margin-left: 0;
-}
-// Carets in other button sizes
-.btn-lg .caret {
-  border-width: @caret-width-large @caret-width-large 0;
-  border-bottom-width: 0;
-}
-// Upside down carets for .dropup
-.dropup .btn-lg .caret {
-  border-width: 0 @caret-width-large @caret-width-large;
-}
-
-
-// Vertical button groups
-// ----------------------
-
-.btn-group-vertical {
-  > .btn,
-  > .btn-group,
-  > .btn-group > .btn {
-    display: block;
-    float: none;
-    width: 100%;
-    max-width: 100%;
-  }
-
-  // Clear floats so dropdown menus can be properly placed
-  > .btn-group {
-    &:extend(.clearfix all);
-    > .btn {
-      float: none;
-    }
-  }
-
-  > .btn + .btn,
-  > .btn + .btn-group,
-  > .btn-group + .btn,
-  > .btn-group + .btn-group {
-    margin-top: -1px;
-    margin-left: 0;
-  }
-}
-
-.btn-group-vertical > .btn {
-  &:not(:first-child):not(:last-child) {
-    border-radius: 0;
-  }
-  &:first-child:not(:last-child) {
-    .border-top-radius(@btn-border-radius-base);
-    .border-bottom-radius(0);
-  }
-  &:last-child:not(:first-child) {
-    .border-top-radius(0);
-    .border-bottom-radius(@btn-border-radius-base);
-  }
-}
-.btn-group-vertical > .btn-group:not(:first-child):not(:last-child) > .btn {
-  border-radius: 0;
-}
-.btn-group-vertical > .btn-group:first-child:not(:last-child) {
-  > .btn:last-child,
-  > .dropdown-toggle {
-    .border-bottom-radius(0);
-  }
-}
-.btn-group-vertical > .btn-group:last-child:not(:first-child) > .btn:first-child {
-  .border-top-radius(0);
-}
-
-
-// Justified button groups
-// ----------------------
-
-.btn-group-justified {
-  display: table;
-  width: 100%;
-  table-layout: fixed;
-  border-collapse: separate;
-  > .btn,
-  > .btn-group {
-    float: none;
-    display: table-cell;
-    width: 1%;
-  }
-  > .btn-group .btn {
-    width: 100%;
-  }
-
-  > .btn-group .dropdown-menu {
-    left: auto;
-  }
-}
-
-
-// Checkbox and radio options
-//
-// In order to support the browser's form validation feedback, powered by the
-// `required` attribute, we have to "hide" the inputs via `clip`. We cannot use
-// `display: none;` or `visibility: hidden;` as that also hides the popover.
-// Simply visually hiding the inputs via `opacity` would leave them clickable in
-// certain cases which is prevented by using `clip` and `pointer-events`.
-// This way, we ensure a DOM element is visible to position the popover from.
-//
-// See https://github.com/twbs/bootstrap/pull/12794 and
-// https://github.com/twbs/bootstrap/pull/14559 for more information.
-
-[data-toggle="buttons"] {
-  > .btn,
-  > .btn-group > .btn {
-    input[type="radio"],
-    input[type="checkbox"] {
-      position: absolute;
-      clip: rect(0,0,0,0);
-      pointer-events: none;
-    }
-  }
-}
diff --git a/css/bootstrap/buttons.less b/css/bootstrap/buttons.less
deleted file mode 100644
index 9cbb8f4..0000000
--- a/css/bootstrap/buttons.less
+++ /dev/null
@@ -1,166 +0,0 @@
-//
-// Buttons
-// --------------------------------------------------
-
-
-// Base styles
-// --------------------------------------------------
-
-.btn {
-  display: inline-block;
-  margin-bottom: 0; // For input.btn
-  font-weight: @btn-font-weight;
-  text-align: center;
-  vertical-align: middle;
-  touch-action: manipulation;
-  cursor: pointer;
-  background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214
-  border: 1px solid transparent;
-  white-space: nowrap;
-  .button-size(@padding-base-vertical; @padding-base-horizontal; @font-size-base; @line-height-base; @btn-border-radius-base);
-  .user-select(none);
-
-  &,
-  &:active,
-  &.active {
-    &:focus,
-    &.focus {
-      .tab-focus();
-    }
-  }
-
-  &:hover,
-  &:focus,
-  &.focus {
-    color: @btn-default-color;
-    text-decoration: none;
-  }
-
-  &:active,
-  &.active {
-    outline: 0;
-    background-image: none;
-    .box-shadow(inset 0 3px 5px rgba(0,0,0,.125));
-  }
-
-  &.disabled,
-  &[disabled],
-  fieldset[disabled] & {
-    cursor: @cursor-disabled;
-    .opacity(.65);
-    .box-shadow(none);
-  }
-
-  a& {
-    &.disabled,
-    fieldset[disabled] & {
-      pointer-events: none; // Future-proof disabling of clicks on `<a>` elements
-    }
-  }
-}
-
-
-// Alternate buttons
-// --------------------------------------------------
-
-.btn-default {
-  .button-variant(@btn-default-color; @btn-default-bg; @btn-default-border);
-}
-.btn-primary {
-  .button-variant(@btn-primary-color; @btn-primary-bg; @btn-primary-border);
-}
-// Success appears as green
-.btn-success {
-  .button-variant(@btn-success-color; @btn-success-bg; @btn-success-border);
-}
-// Info appears as blue-green
-.btn-info {
-  .button-variant(@btn-info-color; @btn-info-bg; @btn-info-border);
-}
-// Warning appears as orange
-.btn-warning {
-  .button-variant(@btn-warning-color; @btn-warning-bg; @btn-warning-border);
-}
-// Danger and error appear as red
-.btn-danger {
-  .button-variant(@btn-danger-color; @btn-danger-bg; @btn-danger-border);
-}
-
-
-// Link buttons
-// -------------------------
-
-// Make a button look and behave like a link
-.btn-link {
-  color: @link-color;
-  font-weight: normal;
-  border-radius: 0;
-
-  &,
-  &:active,
-  &.active,
-  &[disabled],
-  fieldset[disabled] & {
-    background-color: transparent;
-    .box-shadow(none);
-  }
-  &,
-  &:hover,
-  &:focus,
-  &:active {
-    border-color: transparent;
-  }
-  &:hover,
-  &:focus {
-    color: @link-hover-color;
-    text-decoration: @link-hover-decoration;
-    background-color: transparent;
-  }
-  &[disabled],
-  fieldset[disabled] & {
-    &:hover,
-    &:focus {
-      color: @btn-link-disabled-color;
-      text-decoration: none;
-    }
-  }
-}
-
-
-// Button Sizes
-// --------------------------------------------------
-
-.btn-lg {
-  // line-height: ensure even-numbered height of button next to large input
-  .button-size(@padding-large-vertical; @padding-large-horizontal; @font-size-large; @line-height-large; @btn-border-radius-large);
-}
-.btn-sm {
-  // line-height: ensure proper height of button next to small input
-  .button-size(@padding-small-vertical; @padding-small-horizontal; @font-size-small; @line-height-small; @btn-border-radius-small);
-}
-.btn-xs {
-  .button-size(@padding-xs-vertical; @padding-xs-horizontal; @font-size-small; @line-height-small; @btn-border-radius-small);
-}
-
-
-// Block button
-// --------------------------------------------------
-
-.btn-block {
-  display: block;
-  width: 100%;
-}
-
-// Vertically space out multiple block buttons
-.btn-block + .btn-block {
-  margin-top: 5px;
-}
-
-// Specificity overrides
-input[type="submit"],
-input[type="reset"],
-input[type="button"] {
-  &.btn-block {
-    width: 100%;
-  }
-}
diff --git a/css/bootstrap/carousel.less b/css/bootstrap/carousel.less
deleted file mode 100644
index 252011e..0000000
--- a/css/bootstrap/carousel.less
+++ /dev/null
@@ -1,270 +0,0 @@
-//
-// Carousel
-// --------------------------------------------------
-
-
-// Wrapper for the slide container and indicators
-.carousel {
-  position: relative;
-}
-
-.carousel-inner {
-  position: relative;
-  overflow: hidden;
-  width: 100%;
-
-  > .item {
-    display: none;
-    position: relative;
-    .transition(.6s ease-in-out left);
-
-    // Account for jankitude on images
-    > img,
-    > a > img {
-      &:extend(.img-responsive);
-      line-height: 1;
-    }
-
-    // WebKit CSS3 transforms for supported devices
-    @media all and (transform-3d), (-webkit-transform-3d) {
-      .transition-transform(~'0.6s ease-in-out');
-      .backface-visibility(~'hidden');
-      .perspective(1000px);
-
-      &.next,
-      &.active.right {
-        .translate3d(100%, 0, 0);
-        left: 0;
-      }
-      &.prev,
-      &.active.left {
-        .translate3d(-100%, 0, 0);
-        left: 0;
-      }
-      &.next.left,
-      &.prev.right,
-      &.active {
-        .translate3d(0, 0, 0);
-        left: 0;
-      }
-    }
-  }
-
-  > .active,
-  > .next,
-  > .prev {
-    display: block;
-  }
-
-  > .active {
-    left: 0;
-  }
-
-  > .next,
-  > .prev {
-    position: absolute;
-    top: 0;
-    width: 100%;
-  }
-
-  > .next {
-    left: 100%;
-  }
-  > .prev {
-    left: -100%;
-  }
-  > .next.left,
-  > .prev.right {
-    left: 0;
-  }
-
-  > .active.left {
-    left: -100%;
-  }
-  > .active.right {
-    left: 100%;
-  }
-
-}
-
-// Left/right controls for nav
-// ---------------------------
-
-.carousel-control {
-  position: absolute;
-  top: 0;
-  left: 0;
-  bottom: 0;
-  width: @carousel-control-width;
-  .opacity(@carousel-control-opacity);
-  font-size: @carousel-control-font-size;
-  color: @carousel-control-color;
-  text-align: center;
-  text-shadow: @carousel-text-shadow;
-  background-color: rgba(0, 0, 0, 0); // Fix IE9 click-thru bug
-  // We can't have this transition here because WebKit cancels the carousel
-  // animation if you trip this while in the middle of another animation.
-
-  // Set gradients for backgrounds
-  &.left {
-    #gradient > .horizontal(@start-color: rgba(0,0,0,.5); @end-color: rgba(0,0,0,.0001));
-  }
-  &.right {
-    left: auto;
-    right: 0;
-    #gradient > .horizontal(@start-color: rgba(0,0,0,.0001); @end-color: rgba(0,0,0,.5));
-  }
-
-  // Hover/focus state
-  &:hover,
-  &:focus {
-    outline: 0;
-    color: @carousel-control-color;
-    text-decoration: none;
-    .opacity(.9);
-  }
-
-  // Toggles
-  .icon-prev,
-  .icon-next,
-  .glyphicon-chevron-left,
-  .glyphicon-chevron-right {
-    position: absolute;
-    top: 50%;
-    margin-top: -10px;
-    z-index: 5;
-    display: inline-block;
-  }
-  .icon-prev,
-  .glyphicon-chevron-left {
-    left: 50%;
-    margin-left: -10px;
-  }
-  .icon-next,
-  .glyphicon-chevron-right {
-    right: 50%;
-    margin-right: -10px;
-  }
-  .icon-prev,
-  .icon-next {
-    width:  20px;
-    height: 20px;
-    line-height: 1;
-    font-family: serif;
-  }
-
-
-  .icon-prev {
-    &:before {
-      content: '\2039';// SINGLE LEFT-POINTING ANGLE QUOTATION MARK (U+2039)
-    }
-  }
-  .icon-next {
-    &:before {
-      content: '\203a';// SINGLE RIGHT-POINTING ANGLE QUOTATION MARK (U+203A)
-    }
-  }
-}
-
-// Optional indicator pips
-//
-// Add an unordered list with the following class and add a list item for each
-// slide your carousel holds.
-
-.carousel-indicators {
-  position: absolute;
-  bottom: 10px;
-  left: 50%;
-  z-index: 15;
-  width: 60%;
-  margin-left: -30%;
-  padding-left: 0;
-  list-style: none;
-  text-align: center;
-
-  li {
-    display: inline-block;
-    width:  10px;
-    height: 10px;
-    margin: 1px;
-    text-indent: -999px;
-    border: 1px solid @carousel-indicator-border-color;
-    border-radius: 10px;
-    cursor: pointer;
-
-    // IE8-9 hack for event handling
-    //
-    // Internet Explorer 8-9 does not support clicks on elements without a set
-    // `background-color`. We cannot use `filter` since that's not viewed as a
-    // background color by the browser. Thus, a hack is needed.
-    // See https://developer.mozilla.org/en-US/docs/Web/Events/click#Internet_Explorer
-    //
-    // For IE8, we set solid black as it doesn't support `rgba()`. For IE9, we
-    // set alpha transparency for the best results possible.
-    background-color: #000 \9; // IE8
-    background-color: rgba(0,0,0,0); // IE9
-  }
-  .active {
-    margin: 0;
-    width:  12px;
-    height: 12px;
-    background-color: @carousel-indicator-active-bg;
-  }
-}
-
-// Optional captions
-// -----------------------------
-// Hidden by default for smaller viewports
-.carousel-caption {
-  position: absolute;
-  left: 15%;
-  right: 15%;
-  bottom: 20px;
-  z-index: 10;
-  padding-top: 20px;
-  padding-bottom: 20px;
-  color: @carousel-caption-color;
-  text-align: center;
-  text-shadow: @carousel-text-shadow;
-  & .btn {
-    text-shadow: none; // No shadow for button elements in carousel-caption
-  }
-}
-
-
-// Scale up controls for tablets and up
-@media screen and (min-width: @screen-sm-min) {
-
-  // Scale up the controls a smidge
-  .carousel-control {
-    .glyphicon-chevron-left,
-    .glyphicon-chevron-right,
-    .icon-prev,
-    .icon-next {
-      width: (@carousel-control-font-size * 1.5);
-      height: (@carousel-control-font-size * 1.5);
-      margin-top: (@carousel-control-font-size / -2);
-      font-size: (@carousel-control-font-size * 1.5);
-    }
-    .glyphicon-chevron-left,
-    .icon-prev {
-      margin-left: (@carousel-control-font-size / -2);
-    }
-    .glyphicon-chevron-right,
-    .icon-next {
-      margin-right: (@carousel-control-font-size / -2);
-    }
-  }
-
-  // Show and left align the captions
-  .carousel-caption {
-    left: 20%;
-    right: 20%;
-    padding-bottom: 30px;
-  }
-
-  // Move up the indicators
-  .carousel-indicators {
-    bottom: 20px;
-  }
-}
diff --git a/css/bootstrap/close.less b/css/bootstrap/close.less
deleted file mode 100644
index 6d5bfe0..0000000
--- a/css/bootstrap/close.less
+++ /dev/null
@@ -1,34 +0,0 @@
-//
-// Close icons
-// --------------------------------------------------
-
-
-.close {
-  float: right;
-  font-size: (@font-size-base * 1.5);
-  font-weight: @close-font-weight;
-  line-height: 1;
-  color: @close-color;
-  text-shadow: @close-text-shadow;
-  .opacity(.2);
-
-  &:hover,
-  &:focus {
-    color: @close-color;
-    text-decoration: none;
-    cursor: pointer;
-    .opacity(.5);
-  }
-
-  // Additional properties for button version
-  // iOS requires the button element instead of an anchor tag.
-  // If you want the anchor version, it requires `href="#"`.
-  // See https://developer.mozilla.org/en-US/docs/Web/Events/click#Safari_Mobile
-  button& {
-    padding: 0;
-    cursor: pointer;
-    background: transparent;
-    border: 0;
-    -webkit-appearance: none;
-  }
-}
diff --git a/css/bootstrap/code.less b/css/bootstrap/code.less
deleted file mode 100644
index 779d0d6..0000000
--- a/css/bootstrap/code.less
+++ /dev/null
@@ -1,69 +0,0 @@
-//
-// Code (inline and block)
-// --------------------------------------------------
-
-
-// Inline and block code styles
-code,
-kbd,
-pre,
-samp {
-  font-family: @font-family-monospace;
-}
-
-// Inline code
-code {
-  padding: 2px 4px;
-  font-size: 90%;
-  color: @code-color;
-  //background-color: @code-bg;
-  border-radius: @border-radius-base;
-}
-
-// User input typically entered via keyboard
-kbd {
-  padding: 2px 4px;
-  font-size: 90%;
-  color: @kbd-color;
-  background-color: @kbd-bg;
-  border-radius: @border-radius-small;
-  box-shadow: inset 0 -1px 0 rgba(0,0,0,.25);
-
-  kbd {
-    padding: 0;
-    font-size: 100%;
-    font-weight: bold;
-    box-shadow: none;
-  }
-}
-
-// Blocks of code
-pre {
-  display: block;
-  padding: ((@line-height-computed - 1) / 2);
-  margin: 0 0 (@line-height-computed / 2);
-  font-size: (@font-size-base - 1); // 14px to 13px
-  line-height: @line-height-base;
-  word-break: break-all;
-  word-wrap: break-word;
-  color: @pre-color;
-  //background-color: @pre-bg;
-  border: 1px solid @pre-border-color;
-  border-radius: @border-radius-base;
-
-  // Account for some code outputs that place code tags in pre tags
-  code {
-    padding: 0;
-    font-size: inherit;
-    color: inherit;
-    white-space: pre-wrap;
-    background-color: transparent;
-    border-radius: 0;
-  }
-}
-
-// Enable scrollable blocks of code
-.pre-scrollable {
-  max-height: @pre-scrollable-max-height;
-  overflow-y: scroll;
-}
diff --git a/css/bootstrap/component-animations.less b/css/bootstrap/component-animations.less
deleted file mode 100644
index 0bcee91..0000000
--- a/css/bootstrap/component-animations.less
+++ /dev/null
@@ -1,33 +0,0 @@
-//
-// Component animations
-// --------------------------------------------------
-
-// Heads up!
-//
-// We don't use the `.opacity()` mixin here since it causes a bug with text
-// fields in IE7-8. Source: https://github.com/twbs/bootstrap/pull/3552.
-
-.fade {
-  opacity: 0;
-  .transition(opacity .15s linear);
-  &.in {
-    opacity: 1;
-  }
-}
-
-.collapse {
-  display: none;
-
-  &.in      { display: block; }
-  tr&.in    { display: table-row; }
-  tbody&.in { display: table-row-group; }
-}
-
-.collapsing {
-  position: relative;
-  height: 0;
-  overflow: hidden;
-  .transition-property(~"height, visibility");
-  .transition-duration(.35s);
-  .transition-timing-function(ease);
-}
diff --git a/css/bootstrap/custom.less b/css/bootstrap/custom.less
deleted file mode 100644
index f3c48fa..0000000
--- a/css/bootstrap/custom.less
+++ /dev/null
@@ -1,87 +0,0 @@
-// Nick
-
-@import "variables.less";
-
-@footer-link-color: darken(@brand-success, 10%);
-@footer-link-hover-color: darken(@footer-link-color, 10%);
-
-// use these for heading-sized text when you don't want extra spacing
-.text-h1 {
-  font-size: @font-size-h1;
-}
-
-.text-h2 {
-  font-size: @font-size-h2;
-}
-
-.text-h3 {
-  font-size: @font-size-h3;
-}
-
-.text-h4 {
-  font-size: @font-size-h4;
-}
-
-.text-h5 {
-  font-size: @font-size-h5;
-}
-
-.text-h6 {
-  font-size: @font-size-h6;
-}
-
-// apply this to svg, see _svg/icon_search.svg
-.svg-icon {
-  display: inline-block;
-  width: 1em;
-  height: 1em;
-  stroke-width: 0;
-  stroke: currentColor;
-  fill: currentColor;
-  position: relative;
-  bottom: -.125em;
-}
-
-// use this to display the pi symbol without horrible blocky look in Sans
-.text-serif {
-  font-family: @font-family-serif;
-}
-
-// apply this to table to get an icon with vertically centred text next to it
-.icon-and-text {
-  vertical-align: middle;
-  td {
-    padding: .25em .5em;
-  }
-}
-
-.search-results li {
-  margin-bottom: .5em;
-}
-
-// see https://stackoverflow.com/questions/20547819/vertical-align-with-bootstrap-3
-.vcenter {
-  display: inline-block;
-  vertical-align: center;
-  float: none;
-}
-.vbottom {
-  display: inline-block;
-  vertical-align: bottom;
-  float: none;
-}
-
-.footer {
-  padding-top: 35px;
-  padding-bottom: 25px;
-  background-color: @gray-light2;
-  a {
-    color: @footer-link-color;
-
-    &:hover,
-    &:focus {
-      color: @footer-link-hover-color;
-      //background-color: @footer-link-hover-bg;
-    }
-  }
-}
diff --git a/css/bootstrap/dropdowns.less b/css/bootstrap/dropdowns.less
deleted file mode 100644
index f6876c1..0000000
--- a/css/bootstrap/dropdowns.less
+++ /dev/null
@@ -1,216 +0,0 @@
-//
-// Dropdown menus
-// --------------------------------------------------
-
-
-// Dropdown arrow/caret
-.caret {
-  display: inline-block;
-  width: 0;
-  height: 0;
-  margin-left: 2px;
-  vertical-align: middle;
-  border-top:   @caret-width-base dashed;
-  border-top:   @caret-width-base solid ~"\9"; // IE8
-  border-right: @caret-width-base solid transparent;
-  border-left:  @caret-width-base solid transparent;
-}
-
-// The dropdown wrapper (div)
-.dropup,
-.dropdown {
-  position: relative;
-}
-
-// Prevent the focus on the dropdown toggle when closing dropdowns
-.dropdown-toggle:focus {
-  outline: 0;
-}
-
-// The dropdown menu (ul)
-.dropdown-menu {
-  position: absolute;
-  top: 100%;
-  left: 0;
-  z-index: @zindex-dropdown;
-  display: none; // none by default, but block on "open" of the menu
-  float: left;
-  min-width: 160px;
-  padding: 5px 0;
-  margin: 2px 0 0; // override default ul
-  list-style: none;
-  font-size: @font-size-base;
-  text-align: left; // Ensures proper alignment if parent has it changed (e.g., modal footer)
-  background-color: @dropdown-bg;
-  border: 1px solid @dropdown-fallback-border; // IE8 fallback
-  border: 1px solid @dropdown-border;
-  border-radius: @border-radius-base;
-  .box-shadow(0 6px 12px rgba(0,0,0,.175));
-  background-clip: padding-box;
-
-  // Aligns the dropdown menu to right
-  //
-  // Deprecated as of 3.1.0 in favor of `.dropdown-menu-[dir]`
-  &.pull-right {
-    right: 0;
-    left: auto;
-  }
-
-  // Dividers (basically an hr) within the dropdown
-  .divider {
-    .nav-divider(@dropdown-divider-bg);
-  }
-
-  // Links within the dropdown menu
-  > li > a {
-    display: block;
-    padding: 3px 20px;
-    clear: both;
-    font-weight: normal;
-    line-height: @line-height-base;
-    color: @dropdown-link-color;
-    white-space: nowrap; // prevent links from randomly breaking onto new lines
-  }
-}
-
-// Hover/Focus state
-.dropdown-menu > li > a {
-  &:hover,
-  &:focus {
-    text-decoration: none;
-    color: @dropdown-link-hover-color;
-    background-color: @dropdown-link-hover-bg;
-  }
-}
-
-// Active state
-.dropdown-menu > .active > a {
-  &,
-  &:hover,
-  &:focus {
-    color: @dropdown-link-active-color;
-    text-decoration: none;
-    outline: 0;
-    background-color: @dropdown-link-active-bg;
-  }
-}
-
-// Disabled state
-//
-// Gray out text and ensure the hover/focus state remains gray
-
-.dropdown-menu > .disabled > a {
-  &,
-  &:hover,
-  &:focus {
-    color: @dropdown-link-disabled-color;
-  }
-
-  // Nuke hover/focus effects
-  &:hover,
-  &:focus {
-    text-decoration: none;
-    background-color: transparent;
-    background-image: none; // Remove CSS gradient
-    .reset-filter();
-    cursor: @cursor-disabled;
-  }
-}
-
-// Open state for the dropdown
-.open {
-  // Show the menu
-  > .dropdown-menu {
-    display: block;
-  }
-
-  // Remove the outline when :focus is triggered
-  > a {
-    outline: 0;
-  }
-}
-
-// Menu positioning
-//
-// Add extra class to `.dropdown-menu` to flip the alignment of the dropdown
-// menu with the parent.
-.dropdown-menu-right {
-  left: auto; // Reset the default from `.dropdown-menu`
-  right: 0;
-}
-// With v3, we enabled auto-flipping if you have a dropdown within a right
-// aligned nav component. To enable the undoing of that, we provide an override
-// to restore the default dropdown menu alignment.
-//
-// This is only for left-aligning a dropdown menu within a `.navbar-right` or
-// `.pull-right` nav component.
-.dropdown-menu-left {
-  left: 0;
-  right: auto;
-}
-
-// Dropdown section headers
-.dropdown-header {
-  display: block;
-  padding: 3px 20px;
-  font-size: @font-size-small;
-  line-height: @line-height-base;
-  color: @dropdown-header-color;
-  white-space: nowrap; // as with > li > a
-}
-
-// Backdrop to catch body clicks on mobile, etc.
-.dropdown-backdrop {
-  position: fixed;
-  left: 0;
-  right: 0;
-  bottom: 0;
-  top: 0;
-  z-index: (@zindex-dropdown - 10);
-}
-
-// Right aligned dropdowns
-.pull-right > .dropdown-menu {
-  right: 0;
-  left: auto;
-}
-
-// Allow for dropdowns to go bottom up (aka, dropup-menu)
-//
-// Just add .dropup after the standard .dropdown class and you're set, bro.
-// TODO: abstract this so that the navbar fixed styles are not placed here?
-
-.dropup,
-.navbar-fixed-bottom .dropdown {
-  // Reverse the caret
-  .caret {
-    border-top: 0;
-    border-bottom: @caret-width-base dashed;
-    border-bottom: @caret-width-base solid ~"\9"; // IE8
-    content: "";
-  }
-  // Different positioning for bottom up menu
-  .dropdown-menu {
-    top: auto;
-    bottom: 100%;
-    margin-bottom: 2px;
-  }
-}
-
-
-// Component alignment
-//
-// Reiterate per navbar.less and the modified component alignment there.
-
-@media (min-width: @grid-float-breakpoint) {
-  .navbar-right {
-    .dropdown-menu {
-      .dropdown-menu-right();
-    }
-    // Necessary for overrides of the default right aligned menu.
-    // Will remove come v4 in all likelihood.
-    .dropdown-menu-left {
-      .dropdown-menu-left();
-    }
-  }
-}
diff --git a/css/bootstrap/forms.less b/css/bootstrap/forms.less
deleted file mode 100644
index 9377d38..0000000
--- a/css/bootstrap/forms.less
+++ /dev/null
@@ -1,613 +0,0 @@
-//
-// Forms
-// --------------------------------------------------
-
-
-// Normalize non-controls
-//
-// Restyle and baseline non-control form elements.
-
-fieldset {
-  padding: 0;
-  margin: 0;
-  border: 0;
-  // Chrome and Firefox set a `min-width: min-content;` on fieldsets,
-  // so we reset that to ensure it behaves more like a standard block element.
-  // See https://github.com/twbs/bootstrap/issues/12359.
-  min-width: 0;
-}
-
-legend {
-  display: block;
-  width: 100%;
-  padding: 0;
-  margin-bottom: @line-height-computed;
-  font-size: (@font-size-base * 1.5);
-  line-height: inherit;
-  color: @legend-color;
-  border: 0;
-  border-bottom: 1px solid @legend-border-color;
-}
-
-label {
-  display: inline-block;
-  max-width: 100%; // Force IE8 to wrap long content (see https://github.com/twbs/bootstrap/issues/13141)
-  margin-bottom: 5px;
-  font-weight: bold;
-}
-
-
-// Normalize form controls
-//
-// While most of our form styles require extra classes, some basic normalization
-// is required to ensure optimum display with or without those classes to better
-// address browser inconsistencies.
-
-// Override content-box in Normalize (* isn't specific enough)
-input[type="search"] {
-  .box-sizing(border-box);
-}
-
-// Position radios and checkboxes better
-input[type="radio"],
-input[type="checkbox"] {
-  margin: 4px 0 0;
-  margin-top: 1px \9; // IE8-9
-  line-height: normal;
-}
-
-input[type="file"] {
-  display: block;
-}
-
-// Make range inputs behave like textual form controls
-input[type="range"] {
-  display: block;
-  width: 100%;
-}
-
-// Make multiple select elements height not fixed
-select[multiple],
-select[size] {
-  height: auto;
-}
-
-// Focus for file, radio, and checkbox
-input[type="file"]:focus,
-input[type="radio"]:focus,
-input[type="checkbox"]:focus {
-  .tab-focus();
-}
-
-// Adjust output element
-output {
-  display: block;
-  padding-top: (@padding-base-vertical + 1);
-  font-size: @font-size-base;
-  line-height: @line-height-base;
-  color: @input-color;
-}
-
-
-// Common form controls
-//
-// Shared size and type resets for form controls. Apply `.form-control` to any
-// of the following form controls:
-//
-// select
-// textarea
-// input[type="text"]
-// input[type="password"]
-// input[type="datetime"]
-// input[type="datetime-local"]
-// input[type="date"]
-// input[type="month"]
-// input[type="time"]
-// input[type="week"]
-// input[type="number"]
-// input[type="email"]
-// input[type="url"]
-// input[type="search"]
-// input[type="tel"]
-// input[type="color"]
-
-.form-control {
-  display: block;
-  width: 100%;
-  height: @input-height-base; // Make inputs at least the height of their button counterpart (base line-height + padding + border)
-  padding: @padding-base-vertical @padding-base-horizontal;
-  font-size: @font-size-base;
-  line-height: @line-height-base;
-  color: @input-color;
-  background-color: @input-bg;
-  background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214
-  border: 1px solid @input-border;
-  border-radius: @input-border-radius; // Note: This has no effect on <select>s in some browsers, due to the limited stylability of <select>s in CSS.
-  .box-shadow(inset 0 1px 1px rgba(0,0,0,.075));
-  .transition(~"border-color ease-in-out .15s, box-shadow ease-in-out .15s");
-
-  // Customize the `:focus` state to imitate native WebKit styles.
-  .form-control-focus();
-
-  // Placeholder
-  .placeholder();
-
-  // Unstyle the caret on `<select>`s in IE10+.
-  &::-ms-expand {
-    border: 0;
-    background-color: transparent;
-  }
-
-  // Disabled and read-only inputs
-  //
-  // HTML5 says that controls under a fieldset > legend:first-child won't be
-  // disabled if the fieldset is disabled. Due to implementation difficulty, we
-  // don't honor that edge case; we style them as disabled anyway.
-  &[disabled],
-  &[readonly],
-  fieldset[disabled] & {
-    background-color: @input-bg-disabled;
-    opacity: 1; // iOS fix for unreadable disabled content; see https://github.com/twbs/bootstrap/issues/11655
-  }
-
-  &[disabled],
-  fieldset[disabled] & {
-    cursor: @cursor-disabled;
-  }
-
-  // Reset height for `textarea`s
-  textarea& {
-    height: auto;
-  }
-}
-
-
-// Search inputs in iOS
-//
-// This overrides the extra rounded corners on search inputs in iOS so that our
-// `.form-control` class can properly style them. Note that this cannot simply
-// be added to `.form-control` as it's not specific enough. For details, see
-// https://github.com/twbs/bootstrap/issues/11586.
-
-input[type="search"] {
-  -webkit-appearance: none;
-}
-
-
-// Special styles for iOS temporal inputs
-//
-// In Mobile Safari, setting `display: block` on temporal inputs causes the
-// text within the input to become vertically misaligned. As a workaround, we
-// set a pixel line-height that matches the given height of the input, but only
-// for Safari. See https://bugs.webkit.org/show_bug.cgi?id=139848
-//
-// Note that as of 9.3, iOS doesn't support `week`.
-
-@media screen and (-webkit-min-device-pixel-ratio: 0) {
-  input[type="date"],
-  input[type="time"],
-  input[type="datetime-local"],
-  input[type="month"] {
-    &.form-control {
-      line-height: @input-height-base;
-    }
-
-    &.input-sm,
-    .input-group-sm & {
-      line-height: @input-height-small;
-    }
-
-    &.input-lg,
-    .input-group-lg & {
-      line-height: @input-height-large;
-    }
-  }
-}
-
-
-// Form groups
-//
-// Designed to help with the organization and spacing of vertical forms. For
-// horizontal forms, use the predefined grid classes.
-
-.form-group {
-  margin-bottom: @form-group-margin-bottom;
-}
-
-
-// Checkboxes and radios
-//
-// Indent the labels to position radios/checkboxes as hanging controls.
-
-.radio,
-.checkbox {
-  position: relative;
-  display: block;
-  margin-top: 10px;
-  margin-bottom: 10px;
-
-  label {
-    min-height: @line-height-computed; // Ensure the input doesn't jump when there is no text
-    padding-left: 20px;
-    margin-bottom: 0;
-    font-weight: normal;
-    cursor: pointer;
-  }
-}
-.radio input[type="radio"],
-.radio-inline input[type="radio"],
-.checkbox input[type="checkbox"],
-.checkbox-inline input[type="checkbox"] {
-  position: absolute;
-  margin-left: -20px;
-  margin-top: 4px \9;
-}
-
-.radio + .radio,
-.checkbox + .checkbox {
-  margin-top: -5px; // Move up sibling radios or checkboxes for tighter spacing
-}
-
-// Radios and checkboxes on same line
-.radio-inline,
-.checkbox-inline {
-  position: relative;
-  display: inline-block;
-  padding-left: 20px;
-  margin-bottom: 0;
-  vertical-align: middle;
-  font-weight: normal;
-  cursor: pointer;
-}
-.radio-inline + .radio-inline,
-.checkbox-inline + .checkbox-inline {
-  margin-top: 0;
-  margin-left: 10px; // space out consecutive inline controls
-}
-
-// Apply same disabled cursor tweak as for inputs
-// Some special care is needed because <label>s don't inherit their parent's `cursor`.
-//
-// Note: Neither radios nor checkboxes can be readonly.
-input[type="radio"],
-input[type="checkbox"] {
-  &[disabled],
-  &.disabled,
-  fieldset[disabled] & {
-    cursor: @cursor-disabled;
-  }
-}
-// These classes are used directly on <label>s
-.radio-inline,
-.checkbox-inline {
-  &.disabled,
-  fieldset[disabled] & {
-    cursor: @cursor-disabled;
-  }
-}
-// These classes are used on elements with <label> descendants
-.radio,
-.checkbox {
-  &.disabled,
-  fieldset[disabled] & {
-    label {
-      cursor: @cursor-disabled;
-    }
-  }
-}
-
-
-// Static form control text
-//
-// Apply class to a `p` element to make any string of text align with labels in
-// a horizontal form layout.
-
-.form-control-static {
-  // Size it appropriately next to real form controls
-  padding-top: (@padding-base-vertical + 1);
-  padding-bottom: (@padding-base-vertical + 1);
-  // Remove default margin from `p`
-  margin-bottom: 0;
-  min-height: (@line-height-computed + @font-size-base);
-
-  &.input-lg,
-  &.input-sm {
-    padding-left: 0;
-    padding-right: 0;
-  }
-}
-
-
-// Form control sizing
-//
-// Build on `.form-control` with modifier classes to decrease or increase the
-// height and font-size of form controls.
-//
-// The `.form-group-* form-control` variations are sadly duplicated to avoid the
-// issue documented in https://github.com/twbs/bootstrap/issues/15074.
-
-.input-sm {
-  .input-size(@input-height-small; @padding-small-vertical; @padding-small-horizontal; @font-size-small; @line-height-small; @input-border-radius-small);
-}
-.form-group-sm {
-  .form-control {
-    height: @input-height-small;
-    padding: @padding-small-vertical @padding-small-horizontal;
-    font-size: @font-size-small;
-    line-height: @line-height-small;
-    border-radius: @input-border-radius-small;
-  }
-  select.form-control {
-    height: @input-height-small;
-    line-height: @input-height-small;
-  }
-  textarea.form-control,
-  select[multiple].form-control {
-    height: auto;
-  }
-  .form-control-static {
-    height: @input-height-small;
-    min-height: (@line-height-computed + @font-size-small);
-    padding: (@padding-small-vertical + 1) @padding-small-horizontal;
-    font-size: @font-size-small;
-    line-height: @line-height-small;
-  }
-}
-
-.input-lg {
-  .input-size(@input-height-large; @padding-large-vertical; @padding-large-horizontal; @font-size-large; @line-height-large; @input-border-radius-large);
-}
-.form-group-lg {
-  .form-control {
-    height: @input-height-large;
-    padding: @padding-large-vertical @padding-large-horizontal;
-    font-size: @font-size-large;
-    line-height: @line-height-large;
-    border-radius: @input-border-radius-large;
-  }
-  select.form-control {
-    height: @input-height-large;
-    line-height: @input-height-large;
-  }
-  textarea.form-control,
-  select[multiple].form-control {
-    height: auto;
-  }
-  .form-control-static {
-    height: @input-height-large;
-    min-height: (@line-height-computed + @font-size-large);
-    padding: (@padding-large-vertical + 1) @padding-large-horizontal;
-    font-size: @font-size-large;
-    line-height: @line-height-large;
-  }
-}
-
-
-// Form control feedback states
-//
-// Apply contextual and semantic states to individual form controls.
-
-.has-feedback {
-  // Enable absolute positioning
-  position: relative;
-
-  // Ensure icons don't overlap text
-  .form-control {
-    padding-right: (@input-height-base * 1.25);
-  }
-}
-// Feedback icon (requires .glyphicon classes)
-.form-control-feedback {
-  position: absolute;
-  top: 0;
-  right: 0;
-  z-index: 2; // Ensure icon is above input groups
-  display: block;
-  width: @input-height-base;
-  height: @input-height-base;
-  line-height: @input-height-base;
-  text-align: center;
-  pointer-events: none;
-}
-.input-lg + .form-control-feedback,
-.input-group-lg + .form-control-feedback,
-.form-group-lg .form-control + .form-control-feedback {
-  width: @input-height-large;
-  height: @input-height-large;
-  line-height: @input-height-large;
-}
-.input-sm + .form-control-feedback,
-.input-group-sm + .form-control-feedback,
-.form-group-sm .form-control + .form-control-feedback {
-  width: @input-height-small;
-  height: @input-height-small;
-  line-height: @input-height-small;
-}
-
-// Feedback states
-.has-success {
-  .form-control-validation(@state-success-text; @state-success-text; @state-success-bg);
-}
-.has-warning {
-  .form-control-validation(@state-warning-text; @state-warning-text; @state-warning-bg);
-}
-.has-error {
-  .form-control-validation(@state-danger-text; @state-danger-text; @state-danger-bg);
-}
-
-// Reposition feedback icon if input has visible label above
-.has-feedback label {
-
-  & ~ .form-control-feedback {
-    top: (@line-height-computed + 5); // Height of the `label` and its margin
-  }
-  &.sr-only ~ .form-control-feedback {
-    top: 0;
-  }
-}
-
-
-// Help text
-//
-// Apply to any element you wish to create light text for placement immediately
-// below a form control. Use for general help, formatting, or instructional text.
-
-.help-block {
-  display: block; // account for any element using help-block
-  margin-top: 5px;
-  margin-bottom: 10px;
-  color: lighten(@text-color, 25%); // lighten the text some for contrast
-}
-
-
-// Inline forms
-//
-// Make forms appear inline(-block) by adding the `.form-inline` class. Inline
-// forms begin stacked on extra small (mobile) devices and then go inline when
-// viewports reach <768px.
-//
-// Requires wrapping inputs and labels with `.form-group` for proper display of
-// default HTML form controls and our custom form controls (e.g., input groups).
-//
-// Heads up! This is mixin-ed into `.navbar-form` in navbars.less.
-
-.form-inline {
-
-  // Kick in the inline
-  @media (min-width: @screen-sm-min) {
-    // Inline-block all the things for "inline"
-    .form-group {
-      display: inline-block;
-      margin-bottom: 0;
-      vertical-align: middle;
-    }
-
-    // In navbar-form, allow folks to *not* use `.form-group`
-    .form-control {
-      display: inline-block;
-      width: auto; // Prevent labels from stacking above inputs in `.form-group`
-      vertical-align: middle;
-    }
-
-    // Make static controls behave like regular ones
-    .form-control-static {
-      display: inline-block;
-    }
-
-    .input-group {
-      display: inline-table;
-      vertical-align: middle;
-
-      .input-group-addon,
-      .input-group-btn,
-      .form-control {
-        width: auto;
-      }
-    }
-
-    // Input groups need that 100% width though
-    .input-group > .form-control {
-      width: 100%;
-    }
-
-    .control-label {
-      margin-bottom: 0;
-      vertical-align: middle;
-    }
-
-    // Remove default margin on radios/checkboxes that were used for stacking, and
-    // then undo the floating of radios and checkboxes to match.
-    .radio,
-    .checkbox {
-      display: inline-block;
-      margin-top: 0;
-      margin-bottom: 0;
-      vertical-align: middle;
-
-      label {
-        padding-left: 0;
-      }
-    }
-    .radio input[type="radio"],
-    .checkbox input[type="checkbox"] {
-      position: relative;
-      margin-left: 0;
-    }
-
-    // Re-override the feedback icon.
-    .has-feedback .form-control-feedback {
-      top: 0;
-    }
-  }
-}
-
-
-// Horizontal forms
-//
-// Horizontal forms are built on grid classes and allow you to create forms with
-// labels on the left and inputs on the right.
-
-.form-horizontal {
-
-  // Consistent vertical alignment of radios and checkboxes
-  //
-  // Labels also get some reset styles, but that is scoped to a media query below.
-  .radio,
-  .checkbox,
-  .radio-inline,
-  .checkbox-inline {
-    margin-top: 0;
-    margin-bottom: 0;
-    padding-top: (@padding-base-vertical + 1); // Default padding plus a border
-  }
-  // Account for padding we're adding to ensure the alignment and of help text
-  // and other content below items
-  .radio,
-  .checkbox {
-    min-height: (@line-height-computed + (@padding-base-vertical + 1));
-  }
-
-  // Make form groups behave like rows
-  .form-group {
-    .make-row();
-  }
-
-  // Reset spacing and right align labels, but scope to media queries so that
-  // labels on narrow viewports stack the same as a default form example.
-  @media (min-width: @screen-sm-min) {
-    .control-label {
-      text-align: right;
-      margin-bottom: 0;
-      padding-top: (@padding-base-vertical + 1); // Default padding plus a border
-    }
-  }
-
-  // Validation states
-  //
-  // Reposition the icon because it's now within a grid column and columns have
-  // `position: relative;` on them. Also accounts for the grid gutter padding.
-  .has-feedback .form-control-feedback {
-    right: floor((@grid-gutter-width / 2));
-  }
-
-  // Form group sizes
-  //
-  // Quick utility class for applying `.input-lg` and `.input-sm` styles to the
-  // inputs and labels within a `.form-group`.
-  .form-group-lg {
-    @media (min-width: @screen-sm-min) {
-      .control-label {
-        padding-top: (@padding-large-vertical + 1);
-        font-size: @font-size-large;
-      }
-    }
-  }
-  .form-group-sm {
-    @media (min-width: @screen-sm-min) {
-      .control-label {
-        padding-top: (@padding-small-vertical + 1);
-        font-size: @font-size-small;
-      }
-    }
-  }
-}
diff --git a/css/bootstrap/glyphicons.less b/css/bootstrap/glyphicons.less
deleted file mode 100644
index 7bc5852..0000000
--- a/css/bootstrap/glyphicons.less
+++ /dev/null
@@ -1,305 +0,0 @@
-//
-// Glyphicons for Bootstrap
-//
-// Since icons are fonts, they can be placed anywhere text is placed and are
-// thus automatically sized to match the surrounding child. To use, create an
-// inline element with the appropriate classes, like so:
-//
-// <a href="#"><span class="glyphicon glyphicon-star"></span> Star</a>
-
-// Import the fonts
-@font-face {
-  font-family: 'Glyphicons Halflings';
-  src: url('@{icon-font-path}@{icon-font-name}.eot');
-  src: url('@{icon-font-path}@{icon-font-name}.eot?#iefix') format('embedded-opentype'),
-       url('@{icon-font-path}@{icon-font-name}.woff2') format('woff2'),
-       url('@{icon-font-path}@{icon-font-name}.woff') format('woff'),
-       url('@{icon-font-path}@{icon-font-name}.ttf') format('truetype'),
-       url('@{icon-font-path}@{icon-font-name}.svg#@{icon-font-svg-id}') format('svg');
-}
-
-// Catchall baseclass
-.glyphicon {
-  position: relative;
-  top: 1px;
-  display: inline-block;
-  font-family: 'Glyphicons Halflings';
-  font-style: normal;
-  font-weight: normal;
-  line-height: 1;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-}
-
-// Individual icons
-.glyphicon-asterisk               { &:before { content: "\002a"; } }
-.glyphicon-plus                   { &:before { content: "\002b"; } }
-.glyphicon-euro,
-.glyphicon-eur                    { &:before { content: "\20ac"; } }
-.glyphicon-minus                  { &:before { content: "\2212"; } }
-.glyphicon-cloud                  { &:before { content: "\2601"; } }
-.glyphicon-envelope               { &:before { content: "\2709"; } }
-.glyphicon-pencil                 { &:before { content: "\270f"; } }
-.glyphicon-glass                  { &:before { content: "\e001"; } }
-.glyphicon-music                  { &:before { content: "\e002"; } }
-.glyphicon-search                 { &:before { content: "\e003"; } }
-.glyphicon-heart                  { &:before { content: "\e005"; } }
-.glyphicon-star                   { &:before { content: "\e006"; } }
-.glyphicon-star-empty             { &:before { content: "\e007"; } }
-.glyphicon-user                   { &:before { content: "\e008"; } }
-.glyphicon-film                   { &:before { content: "\e009"; } }
-.glyphicon-th-large               { &:before { content: "\e010"; } }
-.glyphicon-th                     { &:before { content: "\e011"; } }
-.glyphicon-th-list                { &:before { content: "\e012"; } }
-.glyphicon-ok                     { &:before { content: "\e013"; } }
-.glyphicon-remove                 { &:before { content: "\e014"; } }
-.glyphicon-zoom-in                { &:before { content: "\e015"; } }
-.glyphicon-zoom-out               { &:before { content: "\e016"; } }
-.glyphicon-off                    { &:before { content: "\e017"; } }
-.glyphicon-signal                 { &:before { content: "\e018"; } }
-.glyphicon-cog                    { &:before { content: "\e019"; } }
-.glyphicon-trash                  { &:before { content: "\e020"; } }
-.glyphicon-home                   { &:before { content: "\e021"; } }
-.glyphicon-file                   { &:before { content: "\e022"; } }
-.glyphicon-time                   { &:before { content: "\e023"; } }
-.glyphicon-road                   { &:before { content: "\e024"; } }
-.glyphicon-download-alt           { &:before { content: "\e025"; } }
-.glyphicon-download               { &:before { content: "\e026"; } }
-.glyphicon-upload                 { &:before { content: "\e027"; } }
-.glyphicon-inbox                  { &:before { content: "\e028"; } }
-.glyphicon-play-circle            { &:before { content: "\e029"; } }
-.glyphicon-repeat                 { &:before { content: "\e030"; } }
-.glyphicon-refresh                { &:before { content: "\e031"; } }
-.glyphicon-list-alt               { &:before { content: "\e032"; } }
-.glyphicon-lock                   { &:before { content: "\e033"; } }
-.glyphicon-flag                   { &:before { content: "\e034"; } }
-.glyphicon-headphones             { &:before { content: "\e035"; } }
-.glyphicon-volume-off             { &:before { content: "\e036"; } }
-.glyphicon-volume-down            { &:before { content: "\e037"; } }
-.glyphicon-volume-up              { &:before { content: "\e038"; } }
-.glyphicon-qrcode                 { &:before { content: "\e039"; } }
-.glyphicon-barcode                { &:before { content: "\e040"; } }
-.glyphicon-tag                    { &:before { content: "\e041"; } }
-.glyphicon-tags                   { &:before { content: "\e042"; } }
-.glyphicon-book                   { &:before { content: "\e043"; } }
-.glyphicon-bookmark               { &:before { content: "\e044"; } }
-.glyphicon-print                  { &:before { content: "\e045"; } }
-.glyphicon-camera                 { &:before { content: "\e046"; } }
-.glyphicon-font                   { &:before { content: "\e047"; } }
-.glyphicon-bold                   { &:before { content: "\e048"; } }
-.glyphicon-italic                 { &:before { content: "\e049"; } }
-.glyphicon-text-height            { &:before { content: "\e050"; } }
-.glyphicon-text-width             { &:before { content: "\e051"; } }
-.glyphicon-align-left             { &:before { content: "\e052"; } }
-.glyphicon-align-center           { &:before { content: "\e053"; } }
-.glyphicon-align-right            { &:before { content: "\e054"; } }
-.glyphicon-align-justify          { &:before { content: "\e055"; } }
-.glyphicon-list                   { &:before { content: "\e056"; } }
-.glyphicon-indent-left            { &:before { content: "\e057"; } }
-.glyphicon-indent-right           { &:before { content: "\e058"; } }
-.glyphicon-facetime-video         { &:before { content: "\e059"; } }
-.glyphicon-picture                { &:before { content: "\e060"; } }
-.glyphicon-map-marker             { &:before { content: "\e062"; } }
-.glyphicon-adjust                 { &:before { content: "\e063"; } }
-.glyphicon-tint                   { &:before { content: "\e064"; } }
-.glyphicon-edit                   { &:before { content: "\e065"; } }
-.glyphicon-share                  { &:before { content: "\e066"; } }
-.glyphicon-check                  { &:before { content: "\e067"; } }
-.glyphicon-move                   { &:before { content: "\e068"; } }
-.glyphicon-step-backward          { &:before { content: "\e069"; } }
-.glyphicon-fast-backward          { &:before { content: "\e070"; } }
-.glyphicon-backward               { &:before { content: "\e071"; } }
-.glyphicon-play                   { &:before { content: "\e072"; } }
-.glyphicon-pause                  { &:before { content: "\e073"; } }
-.glyphicon-stop                   { &:before { content: "\e074"; } }
-.glyphicon-forward                { &:before { content: "\e075"; } }
-.glyphicon-fast-forward           { &:before { content: "\e076"; } }
-.glyphicon-step-forward           { &:before { content: "\e077"; } }
-.glyphicon-eject                  { &:before { content: "\e078"; } }
-.glyphicon-chevron-left           { &:before { content: "\e079"; } }
-.glyphicon-chevron-right          { &:before { content: "\e080"; } }
-.glyphicon-plus-sign              { &:before { content: "\e081"; } }
-.glyphicon-minus-sign             { &:before { content: "\e082"; } }
-.glyphicon-remove-sign            { &:before { content: "\e083"; } }
-.glyphicon-ok-sign                { &:before { content: "\e084"; } }
-.glyphicon-question-sign          { &:before { content: "\e085"; } }
-.glyphicon-info-sign              { &:before { content: "\e086"; } }
-.glyphicon-screenshot             { &:before { content: "\e087"; } }
-.glyphicon-remove-circle          { &:before { content: "\e088"; } }
-.glyphicon-ok-circle              { &:before { content: "\e089"; } }
-.glyphicon-ban-circle             { &:before { content: "\e090"; } }
-.glyphicon-arrow-left             { &:before { content: "\e091"; } }
-.glyphicon-arrow-right            { &:before { content: "\e092"; } }
-.glyphicon-arrow-up               { &:before { content: "\e093"; } }
-.glyphicon-arrow-down             { &:before { content: "\e094"; } }
-.glyphicon-share-alt              { &:before { content: "\e095"; } }
-.glyphicon-resize-full            { &:before { content: "\e096"; } }
-.glyphicon-resize-small           { &:before { content: "\e097"; } }
-.glyphicon-exclamation-sign       { &:before { content: "\e101"; } }
-.glyphicon-gift                   { &:before { content: "\e102"; } }
-.glyphicon-leaf                   { &:before { content: "\e103"; } }
-.glyphicon-fire                   { &:before { content: "\e104"; } }
-.glyphicon-eye-open               { &:before { content: "\e105"; } }
-.glyphicon-eye-close              { &:before { content: "\e106"; } }
-.glyphicon-warning-sign           { &:before { content: "\e107"; } }
-.glyphicon-plane                  { &:before { content: "\e108"; } }
-.glyphicon-calendar               { &:before { content: "\e109"; } }
-.glyphicon-random                 { &:before { content: "\e110"; } }
-.glyphicon-comment                { &:before { content: "\e111"; } }
-.glyphicon-magnet                 { &:before { content: "\e112"; } }
-.glyphicon-chevron-up             { &:before { content: "\e113"; } }
-.glyphicon-chevron-down           { &:before { content: "\e114"; } }
-.glyphicon-retweet                { &:before { content: "\e115"; } }
-.glyphicon-shopping-cart          { &:before { content: "\e116"; } }
-.glyphicon-folder-close           { &:before { content: "\e117"; } }
-.glyphicon-folder-open            { &:before { content: "\e118"; } }
-.glyphicon-resize-vertical        { &:before { content: "\e119"; } }
-.glyphicon-resize-horizontal      { &:before { content: "\e120"; } }
-.glyphicon-hdd                    { &:before { content: "\e121"; } }
-.glyphicon-bullhorn               { &:before { content: "\e122"; } }
-.glyphicon-bell                   { &:before { content: "\e123"; } }
-.glyphicon-certificate            { &:before { content: "\e124"; } }
-.glyphicon-thumbs-up              { &:before { content: "\e125"; } }
-.glyphicon-thumbs-down            { &:before { content: "\e126"; } }
-.glyphicon-hand-right             { &:before { content: "\e127"; } }
-.glyphicon-hand-left              { &:before { content: "\e128"; } }
-.glyphicon-hand-up                { &:before { content: "\e129"; } }
-.glyphicon-hand-down              { &:before { content: "\e130"; } }
-.glyphicon-circle-arrow-right     { &:before { content: "\e131"; } }
-.glyphicon-circle-arrow-left      { &:before { content: "\e132"; } }
-.glyphicon-circle-arrow-up        { &:before { content: "\e133"; } }
-.glyphicon-circle-arrow-down      { &:before { content: "\e134"; } }
-.glyphicon-globe                  { &:before { content: "\e135"; } }
-.glyphicon-wrench                 { &:before { content: "\e136"; } }
-.glyphicon-tasks                  { &:before { content: "\e137"; } }
-.glyphicon-filter                 { &:before { content: "\e138"; } }
-.glyphicon-briefcase              { &:before { content: "\e139"; } }
-.glyphicon-fullscreen             { &:before { content: "\e140"; } }
-.glyphicon-dashboard              { &:before { content: "\e141"; } }
-.glyphicon-paperclip              { &:before { content: "\e142"; } }
-.glyphicon-heart-empty            { &:before { content: "\e143"; } }
-.glyphicon-link                   { &:before { content: "\e144"; } }
-.glyphicon-phone                  { &:before { content: "\e145"; } }
-.glyphicon-pushpin                { &:before { content: "\e146"; } }
-.glyphicon-usd                    { &:before { content: "\e148"; } }
-.glyphicon-gbp                    { &:before { content: "\e149"; } }
-.glyphicon-sort                   { &:before { content: "\e150"; } }
-.glyphicon-sort-by-alphabet       { &:before { content: "\e151"; } }
-.glyphicon-sort-by-alphabet-alt   { &:before { content: "\e152"; } }
-.glyphicon-sort-by-order          { &:before { content: "\e153"; } }
-.glyphicon-sort-by-order-alt      { &:before { content: "\e154"; } }
-.glyphicon-sort-by-attributes     { &:before { content: "\e155"; } }
-.glyphicon-sort-by-attributes-alt { &:before { content: "\e156"; } }
-.glyphicon-unchecked              { &:before { content: "\e157"; } }
-.glyphicon-expand                 { &:before { content: "\e158"; } }
-.glyphicon-collapse-down          { &:before { content: "\e159"; } }
-.glyphicon-collapse-up            { &:before { content: "\e160"; } }
-.glyphicon-log-in                 { &:before { content: "\e161"; } }
-.glyphicon-flash                  { &:before { content: "\e162"; } }
-.glyphicon-log-out                { &:before { content: "\e163"; } }
-.glyphicon-new-window             { &:before { content: "\e164"; } }
-.glyphicon-record                 { &:before { content: "\e165"; } }
-.glyphicon-save                   { &:before { content: "\e166"; } }
-.glyphicon-open                   { &:before { content: "\e167"; } }
-.glyphicon-saved                  { &:before { content: "\e168"; } }
-.glyphicon-import                 { &:before { content: "\e169"; } }
-.glyphicon-export                 { &:before { content: "\e170"; } }
-.glyphicon-send                   { &:before { content: "\e171"; } }
-.glyphicon-floppy-disk            { &:before { content: "\e172"; } }
-.glyphicon-floppy-saved           { &:before { content: "\e173"; } }
-.glyphicon-floppy-remove          { &:before { content: "\e174"; } }
-.glyphicon-floppy-save            { &:before { content: "\e175"; } }
-.glyphicon-floppy-open            { &:before { content: "\e176"; } }
-.glyphicon-credit-card            { &:before { content: "\e177"; } }
-.glyphicon-transfer               { &:before { content: "\e178"; } }
-.glyphicon-cutlery                { &:before { content: "\e179"; } }
-.glyphicon-header                 { &:before { content: "\e180"; } }
-.glyphicon-compressed             { &:before { content: "\e181"; } }
-.glyphicon-earphone               { &:before { content: "\e182"; } }
-.glyphicon-phone-alt              { &:before { content: "\e183"; } }
-.glyphicon-tower                  { &:before { content: "\e184"; } }
-.glyphicon-stats                  { &:before { content: "\e185"; } }
-.glyphicon-sd-video               { &:before { content: "\e186"; } }
-.glyphicon-hd-video               { &:before { content: "\e187"; } }
-.glyphicon-subtitles              { &:before { content: "\e188"; } }
-.glyphicon-sound-stereo           { &:before { content: "\e189"; } }
-.glyphicon-sound-dolby            { &:before { content: "\e190"; } }
-.glyphicon-sound-5-1              { &:before { content: "\e191"; } }
-.glyphicon-sound-6-1              { &:before { content: "\e192"; } }
-.glyphicon-sound-7-1              { &:before { content: "\e193"; } }
-.glyphicon-copyright-mark         { &:before { content: "\e194"; } }
-.glyphicon-registration-mark      { &:before { content: "\e195"; } }
-.glyphicon-cloud-download         { &:before { content: "\e197"; } }
-.glyphicon-cloud-upload           { &:before { content: "\e198"; } }
-.glyphicon-tree-conifer           { &:before { content: "\e199"; } }
-.glyphicon-tree-deciduous         { &:before { content: "\e200"; } }
-.glyphicon-cd                     { &:before { content: "\e201"; } }
-.glyphicon-save-file              { &:before { content: "\e202"; } }
-.glyphicon-open-file              { &:before { content: "\e203"; } }
-.glyphicon-level-up               { &:before { content: "\e204"; } }
-.glyphicon-copy                   { &:before { content: "\e205"; } }
-.glyphicon-paste                  { &:before { content: "\e206"; } }
-// The following 2 Glyphicons are omitted for the time being because
-// they currently use Unicode codepoints that are outside the
-// Basic Multilingual Plane (BMP). Older buggy versions of WebKit can't handle
-// non-BMP codepoints in CSS string escapes, and thus can't display these two icons.
-// Notably, the bug affects some older versions of the Android Browser.
-// More info: https://github.com/twbs/bootstrap/issues/10106
-// .glyphicon-door                   { &:before { content: "\1f6aa"; } }
-// .glyphicon-key                    { &:before { content: "\1f511"; } }
-.glyphicon-alert                  { &:before { content: "\e209"; } }
-.glyphicon-equalizer              { &:before { content: "\e210"; } }
-.glyphicon-king                   { &:before { content: "\e211"; } }
-.glyphicon-queen                  { &:before { content: "\e212"; } }
-.glyphicon-pawn                   { &:before { content: "\e213"; } }
-.glyphicon-bishop                 { &:before { content: "\e214"; } }
-.glyphicon-knight                 { &:before { content: "\e215"; } }
-.glyphicon-baby-formula           { &:before { content: "\e216"; } }
-.glyphicon-tent                   { &:before { content: "\26fa"; } }
-.glyphicon-blackboard             { &:before { content: "\e218"; } }
-.glyphicon-bed                    { &:before { content: "\e219"; } }
-.glyphicon-apple                  { &:before { content: "\f8ff"; } }
-.glyphicon-erase                  { &:before { content: "\e221"; } }
-.glyphicon-hourglass              { &:before { content: "\231b"; } }
-.glyphicon-lamp                   { &:before { content: "\e223"; } }
-.glyphicon-duplicate              { &:before { content: "\e224"; } }
-.glyphicon-piggy-bank             { &:before { content: "\e225"; } }
-.glyphicon-scissors               { &:before { content: "\e226"; } }
-.glyphicon-bitcoin                { &:before { content: "\e227"; } }
-.glyphicon-btc                    { &:before { content: "\e227"; } }
-.glyphicon-xbt                    { &:before { content: "\e227"; } }
-.glyphicon-yen                    { &:before { content: "\00a5"; } }
-.glyphicon-jpy                    { &:before { content: "\00a5"; } }
-.glyphicon-ruble                  { &:before { content: "\20bd"; } }
-.glyphicon-rub                    { &:before { content: "\20bd"; } }
-.glyphicon-scale                  { &:before { content: "\e230"; } }
-.glyphicon-ice-lolly              { &:before { content: "\e231"; } }
-.glyphicon-ice-lolly-tasted       { &:before { content: "\e232"; } }
-.glyphicon-education              { &:before { content: "\e233"; } }
-.glyphicon-option-horizontal      { &:before { content: "\e234"; } }
-.glyphicon-option-vertical        { &:before { content: "\e235"; } }
-.glyphicon-menu-hamburger         { &:before { content: "\e236"; } }
-.glyphicon-modal-window           { &:before { content: "\e237"; } }
-.glyphicon-oil                    { &:before { content: "\e238"; } }
-.glyphicon-grain                  { &:before { content: "\e239"; } }
-.glyphicon-sunglasses             { &:before { content: "\e240"; } }
-.glyphicon-text-size              { &:before { content: "\e241"; } }
-.glyphicon-text-color             { &:before { content: "\e242"; } }
-.glyphicon-text-background        { &:before { content: "\e243"; } }
-.glyphicon-object-align-top       { &:before { content: "\e244"; } }
-.glyphicon-object-align-bottom    { &:before { content: "\e245"; } }
-.glyphicon-object-align-horizontal{ &:before { content: "\e246"; } }
-.glyphicon-object-align-left      { &:before { content: "\e247"; } }
-.glyphicon-object-align-vertical  { &:before { content: "\e248"; } }
-.glyphicon-object-align-right     { &:before { content: "\e249"; } }
-.glyphicon-triangle-right         { &:before { content: "\e250"; } }
-.glyphicon-triangle-left          { &:before { content: "\e251"; } }
-.glyphicon-triangle-bottom        { &:before { content: "\e252"; } }
-.glyphicon-triangle-top           { &:before { content: "\e253"; } }
-.glyphicon-console                { &:before { content: "\e254"; } }
-.glyphicon-superscript            { &:before { content: "\e255"; } }
-.glyphicon-subscript              { &:before { content: "\e256"; } }
-.glyphicon-menu-left              { &:before { content: "\e257"; } }
-.glyphicon-menu-right             { &:before { content: "\e258"; } }
-.glyphicon-menu-down              { &:before { content: "\e259"; } }
-.glyphicon-menu-up                { &:before { content: "\e260"; } }
diff --git a/css/bootstrap/grid.less b/css/bootstrap/grid.less
deleted file mode 100644
index e100655..0000000
--- a/css/bootstrap/grid.less
+++ /dev/null
@@ -1,84 +0,0 @@
-//
-// Grid system
-// --------------------------------------------------
-
-
-// Container widths
-//
-// Set the container width, and override it for fixed navbars in media queries.
-
-.container {
-  .container-fixed();
-
-  @media (min-width: @screen-sm-min) {
-    width: @container-sm;
-  }
-  @media (min-width: @screen-md-min) {
-    width: @container-md;
-  }
-  @media (min-width: @screen-lg-min) {
-    width: @container-lg;
-  }
-}
-
-
-// Fluid container
-//
-// Utilizes the mixin meant for fixed width containers, but without any defined
-// width for fluid, full width layouts.
-
-.container-fluid {
-  .container-fixed();
-}
-
-
-// Row
-//
-// Rows contain and clear the floats of your columns.
-
-.row {
-  .make-row();
-}
-
-
-// Columns
-//
-// Common styles for small and large grid columns
-
-.make-grid-columns();
-
-
-// Extra small grid
-//
-// Columns, offsets, pushes, and pulls for extra small devices like
-// smartphones.
-
-.make-grid(xs);
-
-
-// Small grid
-//
-// Columns, offsets, pushes, and pulls for the small device range, from phones
-// to tablets.
-
-@media (min-width: @screen-sm-min) {
-  .make-grid(sm);
-}
-
-
-// Medium grid
-//
-// Columns, offsets, pushes, and pulls for the desktop device range.
-
-@media (min-width: @screen-md-min) {
-  .make-grid(md);
-}
-
-
-// Large grid
-//
-// Columns, offsets, pushes, and pulls for the large desktop device range.
-
-@media (min-width: @screen-lg-min) {
-  .make-grid(lg);
-}
diff --git a/css/bootstrap/input-groups.less b/css/bootstrap/input-groups.less
deleted file mode 100644
index d0763db..0000000
--- a/css/bootstrap/input-groups.less
+++ /dev/null
@@ -1,171 +0,0 @@
-//
-// Input groups
-// --------------------------------------------------
-
-// Base styles
-// -------------------------
-.input-group {
-  position: relative; // For dropdowns
-  display: table;
-  border-collapse: separate; // prevent input groups from inheriting border styles from table cells when placed within a table
-
-  // Undo padding and float of grid classes
-  &[class*="col-"] {
-    float: none;
-    padding-left: 0;
-    padding-right: 0;
-  }
-
-  .form-control {
-    // Ensure that the input is always above the *appended* addon button for
-    // proper border colors.
-    position: relative;
-    z-index: 2;
-
-    // IE9 fubars the placeholder attribute in text inputs and the arrows on
-    // select elements in input groups. To fix it, we float the input. Details:
-    // https://github.com/twbs/bootstrap/issues/11561#issuecomment-28936855
-    float: left;
-
-    width: 100%;
-    margin-bottom: 0;
-
-    &:focus {
-      z-index: 3;
-    }
-  }
-}
-
-// Sizing options
-//
-// Remix the default form control sizing classes into new ones for easier
-// manipulation.
-
-.input-group-lg > .form-control,
-.input-group-lg > .input-group-addon,
-.input-group-lg > .input-group-btn > .btn {
-  .input-lg();
-}
-.input-group-sm > .form-control,
-.input-group-sm > .input-group-addon,
-.input-group-sm > .input-group-btn > .btn {
-  .input-sm();
-}
-
-
-// Display as table-cell
-// -------------------------
-.input-group-addon,
-.input-group-btn,
-.input-group .form-control {
-  display: table-cell;
-
-  &:not(:first-child):not(:last-child) {
-    border-radius: 0;
-  }
-}
-// Addon and addon wrapper for buttons
-.input-group-addon,
-.input-group-btn {
-  width: 1%;
-  white-space: nowrap;
-  vertical-align: middle; // Match the inputs
-}
-
-// Text input groups
-// -------------------------
-.input-group-addon {
-  padding: @padding-base-vertical @padding-base-horizontal;
-  font-size: @font-size-base;
-  font-weight: normal;
-  line-height: 1;
-  color: @input-color;
-  text-align: center;
-  background-color: @input-group-addon-bg;
-  border: 1px solid @input-group-addon-border-color;
-  border-radius: @input-border-radius;
-
-  // Sizing
-  &.input-sm {
-    padding: @padding-small-vertical @padding-small-horizontal;
-    font-size: @font-size-small;
-    border-radius: @input-border-radius-small;
-  }
-  &.input-lg {
-    padding: @padding-large-vertical @padding-large-horizontal;
-    font-size: @font-size-large;
-    border-radius: @input-border-radius-large;
-  }
-
-  // Nuke default margins from checkboxes and radios to vertically center within.
-  input[type="radio"],
-  input[type="checkbox"] {
-    margin-top: 0;
-  }
-}
-
-// Reset rounded corners
-.input-group .form-control:first-child,
-.input-group-addon:first-child,
-.input-group-btn:first-child > .btn,
-.input-group-btn:first-child > .btn-group > .btn,
-.input-group-btn:first-child > .dropdown-toggle,
-.input-group-btn:last-child > .btn:not(:last-child):not(.dropdown-toggle),
-.input-group-btn:last-child > .btn-group:not(:last-child) > .btn {
-  .border-right-radius(0);
-}
-.input-group-addon:first-child {
-  border-right: 0;
-}
-.input-group .form-control:last-child,
-.input-group-addon:last-child,
-.input-group-btn:last-child > .btn,
-.input-group-btn:last-child > .btn-group > .btn,
-.input-group-btn:last-child > .dropdown-toggle,
-.input-group-btn:first-child > .btn:not(:first-child),
-.input-group-btn:first-child > .btn-group:not(:first-child) > .btn {
-  .border-left-radius(0);
-}
-.input-group-addon:last-child {
-  border-left: 0;
-}
-
-// Button input groups
-// -------------------------
-.input-group-btn {
-  position: relative;
-  // Jankily prevent input button groups from wrapping with `white-space` and
-  // `font-size` in combination with `inline-block` on buttons.
-  font-size: 0;
-  white-space: nowrap;
-
-  // Negative margin for spacing, position for bringing hovered/focused/actived
-  // element above the siblings.
-  > .btn {
-    position: relative;
-    + .btn {
-      margin-left: -1px;
-    }
-    // Bring the "active" button to the front
-    &:hover,
-    &:focus,
-    &:active {
-      z-index: 2;
-    }
-  }
-
-  // Negative margin to only have a 1px border between the two
-  &:first-child {
-    > .btn,
-    > .btn-group {
-      margin-right: -1px;
-    }
-  }
-  &:last-child {
-    > .btn,
-    > .btn-group {
-      z-index: 2;
-      margin-left: -1px;
-    }
-  }
-}
diff --git a/css/bootstrap/jumbotron.less b/css/bootstrap/jumbotron.less
deleted file mode 100644
index 1d9b515..0000000
--- a/css/bootstrap/jumbotron.less
+++ /dev/null
@@ -1,54 +0,0 @@
-//
-// Jumbotron
-// --------------------------------------------------
-
-
-.jumbotron {
-  padding-top:    @jumbotron-padding;
-  padding-bottom: @jumbotron-padding;
-  margin-bottom: @jumbotron-padding;
-  color: @jumbotron-color;
-  background-color: @jumbotron-bg;
-
-  h1,
-  .h1 {
-    color: @jumbotron-heading-color;
-  }
-
-  p {
-    margin-bottom: (@jumbotron-padding / 2);
-    font-size: @jumbotron-font-size;
-    font-weight: 200;
-  }
-
-  > hr {
-    border-top-color: darken(@jumbotron-bg, 10%);
-  }
-
-  .container &,
-  .container-fluid & {
-    border-radius: @border-radius-large; // Only round corners at higher resolutions if contained in a container
-    padding-left:  (@grid-gutter-width / 2);
-    padding-right: (@grid-gutter-width / 2);
-  }
-
-  .container {
-    max-width: 100%;
-  }
-
-  @media screen and (min-width: @screen-sm-min) {
-    padding-top:    (@jumbotron-padding * 1.6);
-    padding-bottom: (@jumbotron-padding * 1.6);
-
-    .container &,
-    .container-fluid & {
-      padding-left:  (@jumbotron-padding * 2);
-      padding-right: (@jumbotron-padding * 2);
-    }
-
-    h1,
-    .h1 {
-      font-size: @jumbotron-heading-font-size;
-    }
-  }
-}
diff --git a/css/bootstrap/labels.less b/css/bootstrap/labels.less
deleted file mode 100644
index 9a5a270..0000000
--- a/css/bootstrap/labels.less
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// Labels
-// --------------------------------------------------
-
-.label {
-  display: inline;
-  padding: .2em .6em .3em;
-  font-size: 75%;
-  font-weight: bold;
-  line-height: 1;
-  color: @label-color;
-  text-align: center;
-  white-space: nowrap;
-  vertical-align: baseline;
-  border-radius: .25em;
-
-  // Add hover effects, but only for links
-  a& {
-    &:hover,
-    &:focus {
-      color: @label-link-hover-color;
-      text-decoration: none;
-      cursor: pointer;
-    }
-  }
-
-  // Empty labels collapse automatically (not available in IE8)
-  &:empty {
-    display: none;
-  }
-
-  // Quick fix for labels in buttons
-  .btn & {
-    position: relative;
-    top: -1px;
-  }
-}
-
-// Colors
-// Contextual variations (linked labels get darker on :hover)
-
-.label-default {
-  .label-variant(@label-default-bg);
-}
-
-.label-primary {
-  .label-variant(@label-primary-bg);
-}
-
-.label-success {
-  .label-variant(@label-success-bg);
-}
-
-.label-info {
-  .label-variant(@label-info-bg);
-}
-
-.label-warning {
-  .label-variant(@label-warning-bg);
-}
-
-.label-danger {
-  .label-variant(@label-danger-bg);
-}
diff --git a/css/bootstrap/list-group.less b/css/bootstrap/list-group.less
deleted file mode 100644
index 216b912..0000000
--- a/css/bootstrap/list-group.less
+++ /dev/null
@@ -1,130 +0,0 @@
-//
-// List groups
-// --------------------------------------------------
-
-
-// Base class
-//
-// Easily usable on <ul>, <ol>, or <div>.
-
-.list-group {
-  // No need to set list-style: none; since .list-group-item is block level
-  margin-bottom: 20px;
-  padding-left: 0; // reset padding because ul and ol
-}
-
-
-// Individual list items
-//
-// Use on `li`s or `div`s within the `.list-group` parent.
-
-.list-group-item {
-  position: relative;
-  display: block;
-  padding: 10px 15px;
-  // Place the border on the list items and negative margin up for better styling
-  margin-bottom: -1px;
-  background-color: @list-group-bg;
-  border: 1px solid @list-group-border;
-
-  // Round the first and last items
-  &:first-child {
-    .border-top-radius(@list-group-border-radius);
-  }
-  &:last-child {
-    margin-bottom: 0;
-    .border-bottom-radius(@list-group-border-radius);
-  }
-}
-
-
-// Interactive list items
-//
-// Use anchor or button elements instead of `li`s or `div`s to create interactive items.
-// Includes an extra `.active` modifier class for showing selected items.
-
-a.list-group-item,
-button.list-group-item {
-  color: @list-group-link-color;
-
-  .list-group-item-heading {
-    color: @list-group-link-heading-color;
-  }
-
-  // Hover state
-  &:hover,
-  &:focus {
-    text-decoration: none;
-    color: @list-group-link-hover-color;
-    background-color: @list-group-hover-bg;
-  }
-}
-
-button.list-group-item {
-  width: 100%;
-  text-align: left;
-}
-
-.list-group-item {
-  // Disabled state
-  &.disabled,
-  &.disabled:hover,
-  &.disabled:focus {
-    background-color: @list-group-disabled-bg;
-    color: @list-group-disabled-color;
-    cursor: @cursor-disabled;
-
-    // Force color to inherit for custom content
-    .list-group-item-heading {
-      color: inherit;
-    }
-    .list-group-item-text {
-      color: @list-group-disabled-text-color;
-    }
-  }
-
-  // Active class on item itself, not parent
-  &.active,
-  &.active:hover,
-  &.active:focus {
-    z-index: 2; // Place active items above their siblings for proper border styling
-    color: @list-group-active-color;
-    background-color: @list-group-active-bg;
-    border-color: @list-group-active-border;
-
-    // Force color to inherit for custom content
-    .list-group-item-heading,
-    .list-group-item-heading > small,
-    .list-group-item-heading > .small {
-      color: inherit;
-    }
-    .list-group-item-text {
-      color: @list-group-active-text-color;
-    }
-  }
-}
-
-
-// Contextual variants
-//
-// Add modifier classes to change text and background color on individual items.
-// Organizationally, this must come after the `:hover` states.
-
-.list-group-item-variant(success; @state-success-bg; @state-success-text);
-.list-group-item-variant(info; @state-info-bg; @state-info-text);
-.list-group-item-variant(warning; @state-warning-bg; @state-warning-text);
-.list-group-item-variant(danger; @state-danger-bg; @state-danger-text);
-
-
-// Custom content options
-//
-// Extra classes for creating well-formatted content within `.list-group-item`s.
-
-.list-group-item-heading {
-  margin-top: 0;
-  margin-bottom: 5px;
-}
-.list-group-item-text {
-  margin-bottom: 0;
-  line-height: 1.3;
-}
diff --git a/css/bootstrap/media.less b/css/bootstrap/media.less
deleted file mode 100644
index 8c835e8..0000000
--- a/css/bootstrap/media.less
+++ /dev/null
@@ -1,66 +0,0 @@
-.media {
-  // Proper spacing between instances of .media
-  margin-top: 15px;
-
-  &:first-child {
-    margin-top: 0;
-  }
-}
-
-.media,
-.media-body {
-  zoom: 1;
-  overflow: hidden;
-}
-
-.media-body {
-  width: 10000px;
-}
-
-.media-object {
-  display: block;
-
-  // Fix collapse in webkit from max-width: 100% and display: table-cell.
-  &.img-thumbnail {
-    max-width: none;
-  }
-}
-
-.media-right,
-.media > .pull-right {
-  padding-left: 10px;
-}
-
-.media-left,
-.media > .pull-left {
-  padding-right: 10px;
-}
-
-.media-left,
-.media-right,
-.media-body {
-  display: table-cell;
-  vertical-align: top;
-}
-
-.media-middle {
-  vertical-align: middle;
-}
-
-.media-bottom {
-  vertical-align: bottom;
-}
-
-// Reset margins on headings for tighter default spacing
-.media-heading {
-  margin-top: 0;
-  margin-bottom: 5px;
-}
-
-// Media list variation
-//
-// Undo default ul/ol styles
-.media-list {
-  padding-left: 0;
-  list-style: none;
-}
diff --git a/css/bootstrap/mixins.less b/css/bootstrap/mixins.less
deleted file mode 100644
index e6f9fe6..0000000
--- a/css/bootstrap/mixins.less
+++ /dev/null
@@ -1,40 +0,0 @@
-// Mixins
-// --------------------------------------------------
-
-// Utilities
-@import "mixins/hide-text.less";
-@import "mixins/opacity.less";
-@import "mixins/image.less";
-@import "mixins/labels.less";
-@import "mixins/reset-filter.less";
-@import "mixins/resize.less";
-@import "mixins/responsive-visibility.less";
-@import "mixins/size.less";
-@import "mixins/tab-focus.less";
-@import "mixins/reset-text.less";
-@import "mixins/text-emphasis.less";
-@import "mixins/text-overflow.less";
-@import "mixins/vendor-prefixes.less";
-
-// Components
-@import "mixins/alerts.less";
-@import "mixins/buttons.less";
-@import "mixins/panels.less";
-@import "mixins/pagination.less";
-@import "mixins/list-group.less";
-@import "mixins/nav-divider.less";
-@import "mixins/forms.less";
-@import "mixins/progress-bar.less";
-@import "mixins/table-row.less";
-
-// Skins
-@import "mixins/background-variant.less";
-@import "mixins/border-radius.less";
-@import "mixins/gradients.less";
-
-// Layout
-@import "mixins/clearfix.less";
-@import "mixins/center-block.less";
-@import "mixins/nav-vertical-align.less";
-@import "mixins/grid-framework.less";
-@import "mixins/grid.less";
diff --git a/css/bootstrap/mixins/_alert.scss b/css/bootstrap/mixins/_alert.scss
new file mode 100644
index 0000000..db5a7eb
--- /dev/null
+++ b/css/bootstrap/mixins/_alert.scss
@@ -0,0 +1,13 @@
+@mixin alert-variant($background, $border, $color) {
+  color: $color;
+  @include gradient-bg($background);
+  border-color: $border;
+
+  hr {
+    border-top-color: darken($border, 5%);
+  }
+
+  .alert-link {
+    color: darken($color, 10%);
+  }
+}
diff --git a/css/bootstrap/mixins/_background-variant.scss b/css/bootstrap/mixins/_background-variant.scss
new file mode 100644
index 0000000..8058018
--- /dev/null
+++ b/css/bootstrap/mixins/_background-variant.scss
@@ -0,0 +1,23 @@
+// stylelint-disable declaration-no-important
+
+// Contextual backgrounds
+
+@mixin bg-variant($parent, $color, $ignore-warning: false) {
+  #{$parent} {
+    background-color: $color !important;
+  }
+  a#{$parent},
+  button#{$parent} {
+    @include hover-focus() {
+      background-color: darken($color, 10%) !important;
+    }
+  }
+  @include deprecate("The `bg-variant` mixin", "v4.4.0", "v5", $ignore-warning);
+}
+
+@mixin bg-gradient-variant($parent, $color, $ignore-warning: false) {
+  #{$parent} {
+    background: $color linear-gradient(180deg, mix($body-bg, $color, 15%), $color) repeat-x !important;
+  }
+  @include deprecate("The `bg-gradient-variant` mixin", "v4.5.0", "v5", $ignore-warning);
+}
diff --git a/css/bootstrap/mixins/_badge.scss b/css/bootstrap/mixins/_badge.scss
new file mode 100644
index 0000000..f1c4991
--- /dev/null
+++ b/css/bootstrap/mixins/_badge.scss
@@ -0,0 +1,17 @@
+@mixin badge-variant($bg) {
+  color: color-yiq($bg);
+  background-color: $bg;
+
+  @at-root a#{&} {
+    @include hover-focus() {
+      color: color-yiq($bg);
+      background-color: darken($bg, 10%);
+    }
+
+    &:focus,
+    &.focus {
+      outline: 0;
+      box-shadow: 0 0 0 $badge-focus-width rgba($bg, .5);
+    }
+  }
+}
diff --git a/css/bootstrap/mixins/_border-radius.scss b/css/bootstrap/mixins/_border-radius.scss
new file mode 100644
index 0000000..4fad91d
--- /dev/null
+++ b/css/bootstrap/mixins/_border-radius.scss
@@ -0,0 +1,76 @@
+// stylelint-disable property-disallowed-list
+// Single side border-radius
+
+// Helper function to replace negative values with 0
+@function valid-radius($radius) {
+  $return: ();
+  @each $value in $radius {
+    @if type-of($value) == number {
+      $return: append($return, max($value, 0));
+    } @else {
+      $return: append($return, $value);
+    }
+  }
+  @return $return;
+}
+
+@mixin border-radius($radius: $border-radius, $fallback-border-radius: false) {
+  @if $enable-rounded {
+    border-radius: valid-radius($radius);
+  }
+  @else if $fallback-border-radius != false {
+    border-radius: $fallback-border-radius;
+  }
+}
+
+@mixin border-top-radius($radius) {
+  @if $enable-rounded {
+    border-top-left-radius: valid-radius($radius);
+    border-top-right-radius: valid-radius($radius);
+  }
+}
+
+@mixin border-right-radius($radius) {
+  @if $enable-rounded {
+    border-top-right-radius: valid-radius($radius);
+    border-bottom-right-radius: valid-radius($radius);
+  }
+}
+
+@mixin border-bottom-radius($radius) {
+  @if $enable-rounded {
+    border-bottom-right-radius: valid-radius($radius);
+    border-bottom-left-radius: valid-radius($radius);
+  }
+}
+
+@mixin border-left-radius($radius) {
+  @if $enable-rounded {
+    border-top-left-radius: valid-radius($radius);
+    border-bottom-left-radius: valid-radius($radius);
+  }
+}
+
+@mixin border-top-left-radius($radius) {
+  @if $enable-rounded {
+    border-top-left-radius: valid-radius($radius);
+  }
+}
+
+@mixin border-top-right-radius($radius) {
+  @if $enable-rounded {
+    border-top-right-radius: valid-radius($radius);
+  }
+}
+
+@mixin border-bottom-right-radius($radius) {
+  @if $enable-rounded {
+    border-bottom-right-radius: valid-radius($radius);
+  }
+}
+
+@mixin border-bottom-left-radius($radius) {
+  @if $enable-rounded {
+    border-bottom-left-radius: valid-radius($radius);
+  }
+}
diff --git a/css/bootstrap/mixins/_box-shadow.scss b/css/bootstrap/mixins/_box-shadow.scss
new file mode 100644
index 0000000..0726d43
--- /dev/null
+++ b/css/bootstrap/mixins/_box-shadow.scss
@@ -0,0 +1,20 @@
+@mixin box-shadow($shadow...) {
+  @if $enable-shadows {
+    $result: ();
+
+    @if (length($shadow) == 1) {
+      // We can pass `@include box-shadow(none);`
+      $result: $shadow;
+    } @else {
+      // Filter to avoid invalid properties for example `box-shadow: none, 1px 1px black;`
+      @for $i from 1 through length($shadow) {
+        @if nth($shadow, $i) != "none" {
+          $result: append($result, nth($shadow, $i), "comma");
+        }
+      }
+    }
+    @if (length($result) > 0) {
+      box-shadow: $result;
+    }
+  }
+}
diff --git a/css/bootstrap/mixins/_breakpoints.scss b/css/bootstrap/mixins/_breakpoints.scss
new file mode 100644
index 0000000..23a5de9
--- /dev/null
+++ b/css/bootstrap/mixins/_breakpoints.scss
@@ -0,0 +1,123 @@
+// Breakpoint viewport sizes and media queries.
+//
+// Breakpoints are defined as a map of (name: minimum width), order from small to large:
+//
+//    (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px)
+//
+// The map defined in the `$grid-breakpoints` global variable is used as the `$breakpoints` argument by default.
+
+// Name of the next breakpoint, or null for the last breakpoint.
+//
+//    >> breakpoint-next(sm)
+//    md
+//    >> breakpoint-next(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
+//    md
+//    >> breakpoint-next(sm, $breakpoint-names: (xs sm md lg xl))
+//    md
+@function breakpoint-next($name, $breakpoints: $grid-breakpoints, $breakpoint-names: map-keys($breakpoints)) {
+  $n: index($breakpoint-names, $name);
+  @return if($n != null and $n < length($breakpoint-names), nth($breakpoint-names, $n + 1), null);
+}
+
+// Minimum breakpoint width. Null for the smallest (first) breakpoint.
+//
+//    >> breakpoint-min(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
+//    576px
+@function breakpoint-min($name, $breakpoints: $grid-breakpoints) {
+  $min: map-get($breakpoints, $name);
+  @return if($min != 0, $min, null);
+}
+
+// Maximum breakpoint width. Null for the largest (last) breakpoint.
+// The maximum value is calculated as the minimum of the next one less 0.02px
+// to work around the limitations of `min-` and `max-` prefixes and viewports with fractional widths.
+// See https://www.w3.org/TR/mediaqueries-4/#mq-min-max
+// Uses 0.02px rather than 0.01px to work around a current rounding bug in Safari.
+// See https://bugs.webkit.org/show_bug.cgi?id=178261
+//
+//    >> breakpoint-max(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
+//    767.98px
+@function breakpoint-max($name, $breakpoints: $grid-breakpoints) {
+  $next: breakpoint-next($name, $breakpoints);
+  @return if($next, breakpoint-min($next, $breakpoints) - .02, null);
+}
+
+// Returns a blank string if smallest breakpoint, otherwise returns the name with a dash in front.
+// Useful for making responsive utilities.
+//
+//    >> breakpoint-infix(xs, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
+//    ""  (Returns a blank string)
+//    >> breakpoint-infix(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
+//    "-sm"
+@function breakpoint-infix($name, $breakpoints: $grid-breakpoints) {
+  @return if(breakpoint-min($name, $breakpoints) == null, "", "-#{$name}");
+}
+
+// Media of at least the minimum breakpoint width. No query for the smallest breakpoint.
+// Makes the @content apply to the given breakpoint and wider.
+@mixin media-breakpoint-up($name, $breakpoints: $grid-breakpoints) {
+  $min: breakpoint-min($name, $breakpoints);
+  @if $min {
+    @media (min-width: $min) {
+      @content;
+    }
+  } @else {
+    @content;
+  }
+}
+
+// Media of at most the maximum breakpoint width. No query for the largest breakpoint.
+// Makes the @content apply to the given breakpoint and narrower.
+@mixin media-breakpoint-down($name, $breakpoints: $grid-breakpoints) {
+  $max: breakpoint-max($name, $breakpoints);
+  @if $max {
+    @media (max-width: $max) {
+      @content;
+    }
+  } @else {
+    @content;
+  }
+}
+
+// Media that spans multiple breakpoint widths.
+// Makes the @content apply between the min and max breakpoints
+@mixin media-breakpoint-between($lower, $upper, $breakpoints: $grid-breakpoints) {
+  $min: breakpoint-min($lower, $breakpoints);
+  $max: breakpoint-max($upper, $breakpoints);
+
+  @if $min != null and $max != null {
+    @media (min-width: $min) and (max-width: $max) {
+      @content;
+    }
+  } @else if $max == null {
+    @include media-breakpoint-up($lower, $breakpoints) {
+      @content;
+    }
+  } @else if $min == null {
+    @include media-breakpoint-down($upper, $breakpoints) {
+      @content;
+    }
+  }
+}
+
+// Media between the breakpoint's minimum and maximum widths.
+// No minimum for the smallest breakpoint, and no maximum for the largest one.
+// Makes the @content apply only to the given breakpoint, not viewports any wider or narrower.
+@mixin media-breakpoint-only($name, $breakpoints: $grid-breakpoints) {
+  $min: breakpoint-min($name, $breakpoints);
+  $max: breakpoint-max($name, $breakpoints);
+
+  @if $min != null and $max != null {
+    @media (min-width: $min) and (max-width: $max) {
+      @content;
+    }
+  } @else if $max == null {
+    @include media-breakpoint-up($name, $breakpoints) {
+      @content;
+    }
+  } @else if $min == null {
+    @include media-breakpoint-down($name, $breakpoints) {
+      @content;
+    }
+  }
+}
diff --git a/css/bootstrap/mixins/_buttons.scss b/css/bootstrap/mixins/_buttons.scss
new file mode 100644
index 0000000..d6235aa
--- /dev/null
+++ b/css/bootstrap/mixins/_buttons.scss
@@ -0,0 +1,110 @@
+// Button variants
+//
+// Easily pump out default styles, as well as :hover, :focus, :active,
+// and disabled options for all buttons
+
+@mixin button-variant($background, $border, $hover-background: darken($background, 7.5%), $hover-border: darken($border, 10%), $active-background: darken($background, 10%), $active-border: darken($border, 12.5%)) {
+  color: color-yiq($background);
+  @include gradient-bg($background);
+  border-color: $border;
+  @include box-shadow($btn-box-shadow);
+
+  @include hover() {
+    color: color-yiq($hover-background);
+    @include gradient-bg($hover-background);
+    border-color: $hover-border;
+  }
+
+  &:focus,
+  &.focus {
+    color: color-yiq($hover-background);
+    @include gradient-bg($hover-background);
+    border-color: $hover-border;
+    @if $enable-shadows {
+      @include box-shadow($btn-box-shadow, 0 0 0 $btn-focus-width rgba(mix(color-yiq($background), $border, 15%), .5));
+    } @else {
+      // Avoid using mixin so we can pass custom focus shadow properly
+      box-shadow: 0 0 0 $btn-focus-width rgba(mix(color-yiq($background), $border, 15%), .5);
+    }
+  }
+
+  // Disabled comes first so active can properly restyle
+  &.disabled,
+  &:disabled {
+    color: color-yiq($background);
+    background-color: $background;
+    border-color: $border;
+    // Remove CSS gradients if they're enabled
+    @if $enable-gradients {
+      background-image: none;
+    }
+  }
+
+  &:not(:disabled):not(.disabled):active,
+  &:not(:disabled):not(.disabled).active,
+  .show > &.dropdown-toggle {
+    color: color-yiq($active-background);
+    background-color: $active-background;
+    @if $enable-gradients {
+      background-image: none; // Remove the gradient for the pressed/active state
+    }
+    border-color: $active-border;
+
+    &:focus {
+      @if $enable-shadows and $btn-active-box-shadow != none {
+        @include box-shadow($btn-active-box-shadow, 0 0 0 $btn-focus-width rgba(mix(color-yiq($background), $border, 15%), .5));
+      } @else {
+        // Avoid using mixin so we can pass custom focus shadow properly
+        box-shadow: 0 0 0 $btn-focus-width rgba(mix(color-yiq($background), $border, 15%), .5);
+      }
+    }
+  }
+}
+
+@mixin button-outline-variant($color, $color-hover: color-yiq($color), $active-background: $color, $active-border: $color) {
+  color: $color;
+  border-color: $color;
+
+  @include hover() {
+    color: $color-hover;
+    background-color: $active-background;
+    border-color: $active-border;
+  }
+
+  &:focus,
+  &.focus {
+    box-shadow: 0 0 0 $btn-focus-width rgba($color, .5);
+  }
+
+  &.disabled,
+  &:disabled {
+    color: $color;
+    background-color: transparent;
+  }
+
+  &:not(:disabled):not(.disabled):active,
+  &:not(:disabled):not(.disabled).active,
+  .show > &.dropdown-toggle {
+    color: color-yiq($active-background);
+    background-color: $active-background;
+    border-color: $active-border;
+
+    &:focus {
+      @if $enable-shadows and $btn-active-box-shadow != none {
+        @include box-shadow($btn-active-box-shadow, 0 0 0 $btn-focus-width rgba($color, .5));
+      } @else {
+        // Avoid using mixin so we can pass custom focus shadow properly
+        box-shadow: 0 0 0 $btn-focus-width rgba($color, .5);
+      }
+    }
+  }
+}
+
+// Button sizes
+@mixin button-size($padding-y, $padding-x, $font-size, $line-height, $border-radius) {
+  padding: $padding-y $padding-x;
+  @include font-size($font-size);
+  line-height: $line-height;
+  // Manually declare to provide an override to the browser default
+  @include border-radius($border-radius, 0);
+}
diff --git a/css/bootstrap/mixins/_caret.scss b/css/bootstrap/mixins/_caret.scss
new file mode 100644
index 0000000..2746649
--- /dev/null
+++ b/css/bootstrap/mixins/_caret.scss
@@ -0,0 +1,62 @@
+@mixin caret-down() {
+  border-top: $caret-width solid;
+  border-right: $caret-width solid transparent;
+  border-bottom: 0;
+  border-left: $caret-width solid transparent;
+}
+
+@mixin caret-up() {
+  border-top: 0;
+  border-right: $caret-width solid transparent;
+  border-bottom: $caret-width solid;
+  border-left: $caret-width solid transparent;
+}
+
+@mixin caret-right() {
+  border-top: $caret-width solid transparent;
+  border-right: 0;
+  border-bottom: $caret-width solid transparent;
+  border-left: $caret-width solid;
+}
+
+@mixin caret-left() {
+  border-top: $caret-width solid transparent;
+  border-right: $caret-width solid;
+  border-bottom: $caret-width solid transparent;
+}
+
+@mixin caret($direction: down) {
+  @if $enable-caret {
+    &::after {
+      display: inline-block;
+      margin-left: $caret-spacing;
+      vertical-align: $caret-vertical-align;
+      content: "";
+      @if $direction == down {
+        @include caret-down();
+      } @else if $direction == up {
+        @include caret-up();
+      } @else if $direction == right {
+        @include caret-right();
+      }
+    }
+
+    @if $direction == left {
+      &::after {
+        display: none;
+      }
+
+      &::before {
+        display: inline-block;
+        margin-right: $caret-spacing;
+        vertical-align: $caret-vertical-align;
+        content: "";
+        @include caret-left();
+      }
+    }
+
+    &:empty::after {
+      margin-left: 0;
+    }
+  }
+}
diff --git a/css/bootstrap/mixins/_clearfix.scss b/css/bootstrap/mixins/_clearfix.scss
new file mode 100644
index 0000000..11a977b
--- /dev/null
+++ b/css/bootstrap/mixins/_clearfix.scss
@@ -0,0 +1,7 @@
+@mixin clearfix() {
+  &::after {
+    display: block;
+    clear: both;
+    content: "";
+  }
+}
diff --git a/css/bootstrap/mixins/_deprecate.scss b/css/bootstrap/mixins/_deprecate.scss
new file mode 100644
index 0000000..df070bc
--- /dev/null
+++ b/css/bootstrap/mixins/_deprecate.scss
@@ -0,0 +1,10 @@
+// Deprecate mixin
+//
+// This mixin can be used to deprecate mixins or functions.
+// `$enable-deprecation-messages` is a global variable, `$ignore-warning` is a variable that can be passed to
+// some deprecated mixins to suppress the warning (for example if the mixin is still be used in the current version of Bootstrap)
+@mixin deprecate($name, $deprecate-version, $remove-version, $ignore-warning: false) {
+  @if ($enable-deprecation-messages != false and $ignore-warning != true) {
+    @warn "#{$name} has been deprecated as of #{$deprecate-version}. It will be removed entirely in #{$remove-version}.";
+  }
+}
diff --git a/css/bootstrap/mixins/_float.scss b/css/bootstrap/mixins/_float.scss
new file mode 100644
index 0000000..6b376a2
--- /dev/null
+++ b/css/bootstrap/mixins/_float.scss
@@ -0,0 +1,14 @@
+// stylelint-disable declaration-no-important
+
+@mixin float-left() {
+  float: left !important;
+  @include deprecate("The `float-left` mixin", "v4.3.0", "v5");
+}
+@mixin float-right() {
+  float: right !important;
+  @include deprecate("The `float-right` mixin", "v4.3.0", "v5");
+}
+@mixin float-none() {
+  float: none !important;
+  @include deprecate("The `float-none` mixin", "v4.3.0", "v5");
+}
diff --git a/css/bootstrap/mixins/_forms.scss b/css/bootstrap/mixins/_forms.scss
new file mode 100644
index 0000000..b8847cc
--- /dev/null
+++ b/css/bootstrap/mixins/_forms.scss
@@ -0,0 +1,195 @@
+// Form control focus state
+//
+// Generate a customized focus state and for any input with the specified color,
+// which defaults to the `$input-focus-border-color` variable.
+//
+// We highly encourage you to not customize the default value, but instead use
+// this to tweak colors on an as-needed basis. This aesthetic change is based on
+// WebKit's default styles, but applicable to a wider range of browsers. Its
+// usability and accessibility should be taken into account with any change.
+//
+// Example usage: change the default blue border and shadow to white for better
+// contrast against a dark gray background.
+@mixin form-control-focus($ignore-warning: false) {
+  &:focus {
+    color: $input-focus-color;
+    background-color: $input-focus-bg;
+    border-color: $input-focus-border-color;
+    outline: 0;
+    @if $enable-shadows {
+      @include box-shadow($input-box-shadow, $input-focus-box-shadow);
+    } @else {
+      // Avoid using mixin so we can pass custom focus shadow properly
+      box-shadow: $input-focus-box-shadow;
+    }
+  }
+  @include deprecate("The `form-control-focus()` mixin", "v4.4.0", "v5", $ignore-warning);
+}
+
+// This mixin uses an `if()` technique to be compatible with Dart Sass
+// See https://github.com/sass/sass/issues/1873#issuecomment-152293725 for more details
+@mixin form-validation-state-selector($state) {
+  @if ($state == "valid" or $state == "invalid") {
+    .was-validated #{if(&, "&", "")}:#{$state},
+    #{if(&, "&", "")}.is-#{$state} {
+      @content;
+    }
+  } @else {
+    #{if(&, "&", "")}.is-#{$state} {
+      @content;
+    }
+  }
+}
+
+@mixin form-validation-state($state, $color, $icon) {
+  .#{$state}-feedback {
+    display: none;
+    width: 100%;
+    margin-top: $form-feedback-margin-top;
+    @include font-size($form-feedback-font-size);
+    color: $color;
+  }
+
+  .#{$state}-tooltip {
+    position: absolute;
+    top: 100%;
+    left: 0;
+    z-index: 5;
+    display: none;
+    max-width: 100%; // Contain to parent when possible
+    padding: $form-feedback-tooltip-padding-y $form-feedback-tooltip-padding-x;
+    margin-top: .1rem;
+    @include font-size($form-feedback-tooltip-font-size);
+    line-height: $form-feedback-tooltip-line-height;
+    color: color-yiq($color);
+    background-color: rgba($color, $form-feedback-tooltip-opacity);
+    @include border-radius($form-feedback-tooltip-border-radius);
+
+    // See https://github.com/twbs/bootstrap/pull/31557
+    // Align tooltip to form elements
+    .form-row > .col > &,
+    .form-row > [class*="col-"] > & {
+      left: $form-grid-gutter-width * .5;
+    }
+  }
+
+  @include form-validation-state-selector($state) {
+    ~ .#{$state}-feedback,
+    ~ .#{$state}-tooltip {
+      display: block;
+    }
+  }
+
+  .form-control {
+    @include form-validation-state-selector($state) {
+      border-color: $color;
+
+      @if $enable-validation-icons {
+        padding-right: $input-height-inner !important; // stylelint-disable-line declaration-no-important
+        background-image: escape-svg($icon);
+        background-repeat: no-repeat;
+        background-position: right $input-height-inner-quarter center;
+        background-size: $input-height-inner-half $input-height-inner-half;
+      }
+
+      &:focus {
+        border-color: $color;
+        box-shadow: 0 0 0 $input-focus-width rgba($color, .25);
+      }
+    }
+  }
+
+  // stylelint-disable-next-line selector-no-qualifying-type
+  select.form-control {
+    @include form-validation-state-selector($state) {
+      @if $enable-validation-icons {
+        padding-right: $input-padding-x * 4 !important; // stylelint-disable-line declaration-no-important
+        background-position: right $input-padding-x * 2 center;
+      }
+    }
+  }
+
+  // stylelint-disable-next-line selector-no-qualifying-type
+  textarea.form-control {
+    @include form-validation-state-selector($state) {
+      @if $enable-validation-icons {
+        padding-right: $input-height-inner;
+        background-position: top $input-height-inner-quarter right $input-height-inner-quarter;
+      }
+    }
+  }
+
+  .custom-select {
+    @include form-validation-state-selector($state) {
+      border-color: $color;
+
+      @if $enable-validation-icons {
+        padding-right: $custom-select-feedback-icon-padding-right !important; // stylelint-disable-line declaration-no-important
+        background: $custom-select-background, $custom-select-bg escape-svg($icon) $custom-select-feedback-icon-position / $custom-select-feedback-icon-size no-repeat;
+      }
+
+      &:focus {
+        border-color: $color;
+        box-shadow: 0 0 0 $input-focus-width rgba($color, .25);
+      }
+    }
+  }
+
+  .form-check-input {
+    @include form-validation-state-selector($state) {
+      ~ .form-check-label {
+        color: $color;
+      }
+
+      ~ .#{$state}-feedback,
+      ~ .#{$state}-tooltip {
+        display: block;
+      }
+    }
+  }
+
+  .custom-control-input {
+    @include form-validation-state-selector($state) {
+      ~ .custom-control-label {
+        color: $color;
+
+        &::before {
+          border-color: $color;
+        }
+      }
+
+      &:checked {
+        ~ .custom-control-label::before {
+          border-color: lighten($color, 10%);
+          @include gradient-bg(lighten($color, 10%));
+        }
+      }
+
+      &:focus {
+        ~ .custom-control-label::before {
+          box-shadow: 0 0 0 $input-focus-width rgba($color, .25);
+        }
+
+        &:not(:checked) ~ .custom-control-label::before {
+          border-color: $color;
+        }
+      }
+    }
+  }
+
+  // custom file
+  .custom-file-input {
+    @include form-validation-state-selector($state) {
+      ~ .custom-file-label {
+        border-color: $color;
+      }
+
+      &:focus {
+        ~ .custom-file-label {
+          border-color: $color;
+          box-shadow: 0 0 0 $input-focus-width rgba($color, .25);
+        }
+      }
+    }
+  }
+}
diff --git a/css/bootstrap/mixins/_gradients.scss b/css/bootstrap/mixins/_gradients.scss
new file mode 100644
index 0000000..88c4d64
--- /dev/null
+++ b/css/bootstrap/mixins/_gradients.scss
@@ -0,0 +1,45 @@
+// Gradients
+
+@mixin gradient-bg($color) {
+  @if $enable-gradients {
+    background: $color linear-gradient(180deg, mix($body-bg, $color, 15%), $color) repeat-x;
+  } @else {
+    background-color: $color;
+  }
+}
+
+// Horizontal gradient, from left to right
+//
+// Creates two color stops, start and end, by specifying a color and position for each color stop.
+@mixin gradient-x($start-color: $gray-700, $end-color: $gray-800, $start-percent: 0%, $end-percent: 100%) {
+  background-image: linear-gradient(to right, $start-color $start-percent, $end-color $end-percent);
+  background-repeat: repeat-x;
+}
+
+// Vertical gradient, from top to bottom
+//
+// Creates two color stops, start and end, by specifying a color and position for each color stop.
+@mixin gradient-y($start-color: $gray-700, $end-color: $gray-800, $start-percent: 0%, $end-percent: 100%) {
+  background-image: linear-gradient(to bottom, $start-color $start-percent, $end-color $end-percent);
+  background-repeat: repeat-x;
+}
+
+@mixin gradient-directional($start-color: $gray-700, $end-color: $gray-800, $deg: 45deg) {
+  background-image: linear-gradient($deg, $start-color, $end-color);
+  background-repeat: repeat-x;
+}
+@mixin gradient-x-three-colors($start-color: $blue, $mid-color: $purple, $color-stop: 50%, $end-color: $red) {
+  background-image: linear-gradient(to right, $start-color, $mid-color $color-stop, $end-color);
+  background-repeat: no-repeat;
+}
+@mixin gradient-y-three-colors($start-color: $blue, $mid-color: $purple, $color-stop: 50%, $end-color: $red) {
+  background-image: linear-gradient($start-color, $mid-color $color-stop, $end-color);
+  background-repeat: no-repeat;
+}
+@mixin gradient-radial($inner-color: $gray-700, $outer-color: $gray-800) {
+  background-image: radial-gradient(circle, $inner-color, $outer-color);
+  background-repeat: no-repeat;
+}
+@mixin gradient-striped($color: rgba($white, .15), $angle: 45deg) {
+  background-image: linear-gradient($angle, $color 25%, transparent 25%, transparent 50%, $color 50%, $color 75%, transparent 75%, transparent);
+}
diff --git a/css/bootstrap/mixins/_grid-framework.scss b/css/bootstrap/mixins/_grid-framework.scss
new file mode 100644
index 0000000..ef32917
--- /dev/null
+++ b/css/bootstrap/mixins/_grid-framework.scss
@@ -0,0 +1,80 @@
+// Framework grid generation
+//
+// Used only by Bootstrap to generate the correct number of grid classes given
+// any value of `$grid-columns`.
+
+@mixin make-grid-columns($columns: $grid-columns, $gutter: $grid-gutter-width, $breakpoints: $grid-breakpoints) {
+  // Common properties for all breakpoints
+  %grid-column {
+    position: relative;
+    width: 100%;
+    padding-right: $gutter * .5;
+    padding-left: $gutter * .5;
+  }
+
+  @each $breakpoint in map-keys($breakpoints) {
+    $infix: breakpoint-infix($breakpoint, $breakpoints);
+
+    @if $columns > 0 {
+      // Allow columns to stretch full width below their breakpoints
+      @for $i from 1 through $columns {
+        .col#{$infix}-#{$i} {
+          @extend %grid-column;
+        }
+      }
+    }
+
+    .col#{$infix},
+    .col#{$infix}-auto {
+      @extend %grid-column;
+    }
+
+    @include media-breakpoint-up($breakpoint, $breakpoints) {
+      // Provide basic `.col-{bp}` classes for equal-width flexbox columns
+      .col#{$infix} {
+        flex-basis: 0;
+        flex-grow: 1;
+        max-width: 100%;
+      }
+
+      @if $grid-row-columns > 0 {
+        @for $i from 1 through $grid-row-columns {
+          .row-cols#{$infix}-#{$i} {
+            @include row-cols($i);
+          }
+        }
+      }
+
+      .col#{$infix}-auto {
+        @include make-col-auto();
+      }
+
+      @if $columns > 0 {
+        @for $i from 1 through $columns {
+          .col#{$infix}-#{$i} {
+            @include make-col($i, $columns);
+          }
+        }
+      }
+
+      .order#{$infix}-first { order: -1; }
+
+      .order#{$infix}-last { order: $columns + 1; }
+
+      @for $i from 0 through $columns {
+        .order#{$infix}-#{$i} { order: $i; }
+      }
+
+      @if $columns > 0 {
+        // `$columns - 1` because offsetting by the width of an entire row isn't possible
+        @for $i from 0 through ($columns - 1) {
+          @if not ($infix == "" and $i == 0) { // Avoid emitting useless .offset-0
+            .offset#{$infix}-#{$i} {
+              @include make-col-offset($i, $columns);
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/css/bootstrap/mixins/_grid.scss b/css/bootstrap/mixins/_grid.scss
new file mode 100644
index 0000000..0eb0991
--- /dev/null
+++ b/css/bootstrap/mixins/_grid.scss
@@ -0,0 +1,69 @@
+/// Grid system
+//
+// Generate semantic grid columns with these mixins.
+
+@mixin make-container($gutter: $grid-gutter-width) {
+  width: 100%;
+  padding-right: $gutter * .5;
+  padding-left: $gutter * .5;
+  margin-right: auto;
+  margin-left: auto;
+}
+
+@mixin make-row($gutter: $grid-gutter-width) {
+  display: flex;
+  flex-wrap: wrap;
+  margin-right: -$gutter * .5;
+  margin-left: -$gutter * .5;
+}
+
+// For each breakpoint, define the maximum width of the container in a media query
+@mixin make-container-max-widths($max-widths: $container-max-widths, $breakpoints: $grid-breakpoints) {
+  @each $breakpoint, $container-max-width in $max-widths {
+    @include media-breakpoint-up($breakpoint, $breakpoints) {
+      max-width: $container-max-width;
+    }
+  }
+  @include deprecate("The `make-container-max-widths` mixin", "v4.5.2", "v5");
+}
+
+@mixin make-col-ready($gutter: $grid-gutter-width) {
+  position: relative;
+  // Prevent columns from becoming too narrow when at smaller grid tiers by
+  // always setting `width: 100%;`. This works because we use `flex` values
+  // later on to override this initial width.
+  width: 100%;
+  padding-right: $gutter * .5;
+  padding-left: $gutter * .5;
+}
+
+@mixin make-col($size, $columns: $grid-columns) {
+  flex: 0 0 percentage(divide($size, $columns));
+  // Add a `max-width` to ensure content within each column does not blow out
+  // the width of the column. Applies to IE10+ and Firefox. Chrome and Safari
+  // do not appear to require this.
+  max-width: percentage(divide($size, $columns));
+}
+
+@mixin make-col-auto() {
+  flex: 0 0 auto;
+  width: auto;
+  max-width: 100%; // Reset earlier grid tiers
+}
+
+@mixin make-col-offset($size, $columns: $grid-columns) {
+  $num: divide($size, $columns);
+  margin-left: if($num == 0, 0, percentage($num));
+}
+
+// Row columns
+//
+// Specify on a parent element(e.g., .row) to force immediate children into NN
+// numberof columns. Supports wrapping to new lines, but does not do a Masonry
+// style grid.
+@mixin row-cols($count) {
+  > * {
+    flex: 0 0 divide(100%, $count);
+    max-width: divide(100%, $count);
+  }
+}
diff --git a/css/bootstrap/mixins/_hover.scss b/css/bootstrap/mixins/_hover.scss
new file mode 100644
index 0000000..409f824
--- /dev/null
+++ b/css/bootstrap/mixins/_hover.scss
@@ -0,0 +1,37 @@
+// Hover mixin and `$enable-hover-media-query` are deprecated.
+//
+// Originally added during our alphas and maintained during betas, this mixin was
+// designed to prevent `:hover` stickiness on iOS-an issue where hover styles
+// would persist after initial touch.
+//
+// For backward compatibility, we've kept these mixins and updated them to
+// always return their regular pseudo-classes instead of a shimmed media query.
+//
+// Issue: https://github.com/twbs/bootstrap/issues/25195
+
+@mixin hover() {
+  &:hover { @content; }
+}
+
+@mixin hover-focus() {
+  &:hover,
+  &:focus {
+    @content;
+  }
+}
+
+@mixin plain-hover-focus() {
+  &,
+  &:hover,
+  &:focus {
+    @content;
+  }
+}
+
+@mixin hover-focus-active() {
+  &:hover,
+  &:focus,
+  &:active {
+    @content;
+  }
+}
diff --git a/css/bootstrap/mixins/_image.scss b/css/bootstrap/mixins/_image.scss
new file mode 100644
index 0000000..3aaa0d7
--- /dev/null
+++ b/css/bootstrap/mixins/_image.scss
@@ -0,0 +1,36 @@
+// Image Mixins
+// - Responsive image
+// - Retina image
+
+
+// Responsive image
+//
+// Keep images from scaling beyond the width of their parents.
+
+@mixin img-fluid() {
+  // Part 1: Set a maximum relative to the parent
+  max-width: 100%;
+  // Part 2: Override the height to auto, otherwise images will be stretched
+  // when setting a width and height attribute on the img element.
+  height: auto;
+}
+
+
+// Retina image
+//
+// Short retina mixin for setting background-image and -size.
+
+@mixin img-retina($file-1x, $file-2x, $width-1x, $height-1x) {
+  background-image: url($file-1x);
+
+  // Autoprefixer takes care of adding -webkit-min-device-pixel-ratio and -o-min-device-pixel-ratio,
+  // but doesn't convert dppx=>dpi.
+  // There's no such thing as unprefixed min-device-pixel-ratio since it's nonstandard.
+  // Compatibility info: https://caniuse.com/css-media-resolution
+  @media only screen and (min-resolution: 192dpi), // IE9-11 don't support dppx
+    only screen and (min-resolution: 2dppx) { // Standardized
+    background-image: url($file-2x);
+    background-size: $width-1x $height-1x;
+  }
+  @include deprecate("`img-retina()`", "v4.3.0", "v5");
+}
diff --git a/css/bootstrap/mixins/_list-group.scss b/css/bootstrap/mixins/_list-group.scss
new file mode 100644
index 0000000..0da3531
--- /dev/null
+++ b/css/bootstrap/mixins/_list-group.scss
@@ -0,0 +1,21 @@
+// List Groups
+
+@mixin list-group-item-variant($state, $background, $color) {
+  .list-group-item-#{$state} {
+    color: $color;
+    background-color: $background;
+
+    &.list-group-item-action {
+      @include hover-focus() {
+        color: $color;
+        background-color: darken($background, 5%);
+      }
+
+      &.active {
+        color: $white;
+        background-color: $color;
+        border-color: $color;
+      }
+    }
+  }
+}
diff --git a/css/bootstrap/mixins/_lists.scss b/css/bootstrap/mixins/_lists.scss
new file mode 100644
index 0000000..251cb07
--- /dev/null
+++ b/css/bootstrap/mixins/_lists.scss
@@ -0,0 +1,7 @@
+// Lists
+
+// Unstyled keeps list items block level, just removes default browser padding and list-style
+@mixin list-unstyled() {
+  padding-left: 0;
+  list-style: none;
+}
diff --git a/css/bootstrap/mixins/_nav-divider.scss b/css/bootstrap/mixins/_nav-divider.scss
new file mode 100644
index 0000000..3e0ccea
--- /dev/null
+++ b/css/bootstrap/mixins/_nav-divider.scss
@@ -0,0 +1,11 @@
+// Horizontal dividers
+//
+// Dividers (basically an hr) within dropdowns and nav lists
+
+@mixin nav-divider($color: $nav-divider-color, $margin-y: $nav-divider-margin-y, $ignore-warning: false) {
+  height: 0;
+  margin: $margin-y 0;
+  overflow: hidden;
+  border-top: 1px solid $color;
+  @include deprecate("The `nav-divider()` mixin", "v4.4.0", "v5", $ignore-warning);
+}
diff --git a/css/bootstrap/mixins/_pagination.scss b/css/bootstrap/mixins/_pagination.scss
new file mode 100644
index 0000000..af8e16d
--- /dev/null
+++ b/css/bootstrap/mixins/_pagination.scss
@@ -0,0 +1,22 @@
+// Pagination
+
+@mixin pagination-size($padding-y, $padding-x, $font-size, $line-height, $border-radius) {
+  .page-link {
+    padding: $padding-y $padding-x;
+    @include font-size($font-size);
+    line-height: $line-height;
+  }
+
+  .page-item {
+    &:first-child {
+      .page-link {
+        @include border-left-radius($border-radius);
+      }
+    }
+    &:last-child {
+      .page-link {
+        @include border-right-radius($border-radius);
+      }
+    }
+  }
+}
diff --git a/css/bootstrap/mixins/reset-text.less b/css/bootstrap/mixins/_reset-text.scss
similarity index 61%
rename from css/bootstrap/mixins/reset-text.less
rename to css/bootstrap/mixins/_reset-text.scss
index 58dd4d1..15b4407 100644
--- a/css/bootstrap/mixins/reset-text.less
+++ b/css/bootstrap/mixins/_reset-text.scss
@@ -1,18 +1,17 @@
-.reset-text() {
-  font-family: @font-family-base;
-  // We deliberately do NOT reset font-size.
+@mixin reset-text() {
+  font-family: $font-family-base;
+  // We deliberately do NOT reset font-size or word-wrap.
   font-style: normal;
-  font-weight: normal;
-  letter-spacing: normal;
-  line-break: auto;
-  line-height: @line-height-base;
+  font-weight: $font-weight-normal;
+  line-height: $line-height-base;
   text-align: left; // Fallback for where `start` is not supported
   text-align: start;
   text-decoration: none;
   text-shadow: none;
   text-transform: none;
-  white-space: normal;
+  letter-spacing: normal;
   word-break: normal;
   word-spacing: normal;
-  word-wrap: normal;
+  white-space: normal;
+  line-break: auto;
 }
diff --git a/css/bootstrap/mixins/resize.less b/css/bootstrap/mixins/_resize.scss
similarity index 54%
rename from css/bootstrap/mixins/resize.less
rename to css/bootstrap/mixins/_resize.scss
index 3acd3af..66f233a 100644
--- a/css/bootstrap/mixins/resize.less
+++ b/css/bootstrap/mixins/_resize.scss
@@ -1,6 +1,6 @@
 // Resize anything
 
-.resizable(@direction) {
-  resize: @direction; // Options: horizontal, vertical, both
+@mixin resizable($direction) {
   overflow: auto; // Per CSS3 UI, `resize` only applies when `overflow` isn't `visible`
+  resize: $direction; // Options: horizontal, vertical, both
 }
diff --git a/css/bootstrap/mixins/_screen-reader.scss b/css/bootstrap/mixins/_screen-reader.scss
new file mode 100644
index 0000000..70b677e
--- /dev/null
+++ b/css/bootstrap/mixins/_screen-reader.scss
@@ -0,0 +1,34 @@
+// Only display content to screen readers
+//
+// See: https://www.a11yproject.com/posts/2013-01-11-how-to-hide-content/
+// See: https://kittygiraudel.com/2016/10/13/css-hide-and-seek/
+
+@mixin sr-only() {
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  padding: 0;
+  margin: -1px; // Fix for https://github.com/twbs/bootstrap/issues/25686
+  overflow: hidden;
+  clip: rect(0, 0, 0, 0);
+  white-space: nowrap;
+  border: 0;
+}
+
+// Use in conjunction with .sr-only to only display content when it's focused.
+//
+// Useful for "Skip to main content" links; see https://www.w3.org/TR/2013/NOTE-WCAG20-TECHS-20130905/G1
+//
+// Credit: HTML5 Boilerplate
+
+@mixin sr-only-focusable() {
+  &:active,
+  &:focus {
+    position: static;
+    width: auto;
+    height: auto;
+    overflow: visible;
+    clip: auto;
+    white-space: normal;
+  }
+}
diff --git a/css/bootstrap/mixins/_size.scss b/css/bootstrap/mixins/_size.scss
new file mode 100644
index 0000000..69e056d
--- /dev/null
+++ b/css/bootstrap/mixins/_size.scss
@@ -0,0 +1,7 @@
+// Sizing shortcuts
+
+@mixin size($width, $height: $width) {
+  width: $width;
+  height: $height;
+  @include deprecate("`size()`", "v4.3.0", "v5");
+}
diff --git a/css/bootstrap/mixins/_table-row.scss b/css/bootstrap/mixins/_table-row.scss
new file mode 100644
index 0000000..1ccde6b
--- /dev/null
+++ b/css/bootstrap/mixins/_table-row.scss
@@ -0,0 +1,39 @@
+// Tables
+
+@mixin table-row-variant($state, $background, $border: null) {
+  // Exact selectors below required to override `.table-striped` and prevent
+  // inheritance to nested tables.
+  .table-#{$state} {
+    &,
+    > th,
+    > td {
+      background-color: $background;
+    }
+
+    @if $border != null {
+      th,
+      td,
+      thead th,
+      tbody + tbody {
+        border-color: $border;
+      }
+    }
+  }
+
+  // Hover states for `.table-hover`
+  // Note: this is not available for cells or rows within `thead` or `tfoot`.
+  .table-hover {
+    $hover-background: darken($background, 5%);
+
+    .table-#{$state} {
+      @include hover() {
+        background-color: $hover-background;
+
+        > td,
+        > th {
+          background-color: $hover-background;
+        }
+      }
+    }
+  }
+}
diff --git a/css/bootstrap/mixins/_text-emphasis.scss b/css/bootstrap/mixins/_text-emphasis.scss
new file mode 100644
index 0000000..5eb8a55
--- /dev/null
+++ b/css/bootstrap/mixins/_text-emphasis.scss
@@ -0,0 +1,17 @@
+// stylelint-disable declaration-no-important
+
+// Typography
+
+@mixin text-emphasis-variant($parent, $color, $ignore-warning: false) {
+  #{$parent} {
+    color: $color !important;
+  }
+  @if $emphasized-link-hover-darken-percentage != 0 {
+    a#{$parent} {
+      @include hover-focus() {
+        color: darken($color, $emphasized-link-hover-darken-percentage) !important;
+      }
+    }
+  }
+  @include deprecate("`text-emphasis-variant()`", "v4.4.0", "v5", $ignore-warning);
+}
diff --git a/css/bootstrap/mixins/_text-hide.scss b/css/bootstrap/mixins/_text-hide.scss
new file mode 100644
index 0000000..3a92301
--- /dev/null
+++ b/css/bootstrap/mixins/_text-hide.scss
@@ -0,0 +1,11 @@
+// CSS image replacement
+@mixin text-hide($ignore-warning: false) {
+  // stylelint-disable-next-line font-family-no-missing-generic-family-keyword
+  font: 0/0 a;
+  color: transparent;
+  text-shadow: none;
+  background-color: transparent;
+  border: 0;
+
+  @include deprecate("`text-hide()`", "v4.1.0", "v5", $ignore-warning);
+}
diff --git a/css/bootstrap/mixins/text-overflow.less b/css/bootstrap/mixins/_text-truncate.scss
similarity index 75%
rename from css/bootstrap/mixins/text-overflow.less
rename to css/bootstrap/mixins/_text-truncate.scss
index c11ad2f..3504bb1 100644
--- a/css/bootstrap/mixins/text-overflow.less
+++ b/css/bootstrap/mixins/_text-truncate.scss
@@ -1,7 +1,7 @@
-// Text overflow
+// Text truncate
 // Requires inline-block or block for proper styling
 
-.text-overflow() {
+@mixin text-truncate() {
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
diff --git a/css/bootstrap/mixins/_transition.scss b/css/bootstrap/mixins/_transition.scss
new file mode 100644
index 0000000..54870bf
--- /dev/null
+++ b/css/bootstrap/mixins/_transition.scss
@@ -0,0 +1,26 @@
+// stylelint-disable property-disallowed-list
+@mixin transition($transition...) {
+  @if length($transition) == 0 {
+    $transition: $transition-base;
+  }
+
+  @if length($transition) > 1 {
+    @each $value in $transition {
+      @if $value == null or $value == none {
+        @warn "The keyword 'none' or 'null' must be used as a single argument.";
+      }
+    }
+  }
+
+  @if $enable-transitions {
+    @if nth($transition, 1) != null {
+      transition: $transition;
+    }
+
+    @if $enable-prefers-reduced-motion-media-query and nth($transition, 1) != null and nth($transition, 1) != none {
+      @media (prefers-reduced-motion: reduce) {
+        transition: none;
+      }
+    }
+  }
+}
diff --git a/css/bootstrap/mixins/_visibility.scss b/css/bootstrap/mixins/_visibility.scss
new file mode 100644
index 0000000..f174673
--- /dev/null
+++ b/css/bootstrap/mixins/_visibility.scss
@@ -0,0 +1,8 @@
+// stylelint-disable declaration-no-important
+
+// Visibility
+
+@mixin invisible($visibility) {
+  visibility: $visibility !important;
+  @include deprecate("`invisible()`", "v4.3.0", "v5");
+}
diff --git a/css/bootstrap/mixins/alerts.less b/css/bootstrap/mixins/alerts.less
deleted file mode 100644
index 396196f..0000000
--- a/css/bootstrap/mixins/alerts.less
+++ /dev/null
@@ -1,14 +0,0 @@
-// Alerts
-
-.alert-variant(@background; @border; @text-color) {
-  background-color: @background;
-  border-color: @border;
-  color: @text-color;
-
-  hr {
-    border-top-color: darken(@border, 5%);
-  }
-  .alert-link {
-    color: darken(@text-color, 10%);
-  }
-}
diff --git a/css/bootstrap/mixins/background-variant.less b/css/bootstrap/mixins/background-variant.less
deleted file mode 100644
index a85c22b..0000000
--- a/css/bootstrap/mixins/background-variant.less
+++ /dev/null
@@ -1,9 +0,0 @@
-// Contextual backgrounds
-
-.bg-variant(@color) {
-  background-color: @color;
-  a&:hover,
-  a&:focus {
-    background-color: darken(@color, 10%);
-  }
-}
diff --git a/css/bootstrap/mixins/border-radius.less b/css/bootstrap/mixins/border-radius.less
deleted file mode 100644
index ca05dbf..0000000
--- a/css/bootstrap/mixins/border-radius.less
+++ /dev/null
@@ -1,18 +0,0 @@
-// Single side border-radius
-
-.border-top-radius(@radius) {
-  border-top-right-radius: @radius;
-   border-top-left-radius: @radius;
-}
-.border-right-radius(@radius) {
-  border-bottom-right-radius: @radius;
-     border-top-right-radius: @radius;
-}
-.border-bottom-radius(@radius) {
-  border-bottom-right-radius: @radius;
-   border-bottom-left-radius: @radius;
-}
-.border-left-radius(@radius) {
-  border-bottom-left-radius: @radius;
-     border-top-left-radius: @radius;
-}
diff --git a/css/bootstrap/mixins/buttons.less b/css/bootstrap/mixins/buttons.less
deleted file mode 100644
index b294d8c..0000000
--- a/css/bootstrap/mixins/buttons.less
+++ /dev/null
@@ -1,65 +0,0 @@
-// Button variants
-//
-// Easily pump out default styles, as well as :hover, :focus, :active,
-// and disabled options for all buttons
-
-.button-variant(@color; @background; @border) {
-  color: @color;
-  background-color: @background;
-  border-color: @border;
-
-  &:focus,
-  &.focus {
-    color: @color;
-    background-color: darken(@background, 10%);
-        border-color: darken(@border, 25%);
-  }
-  &:hover {
-    color: @color;
-    background-color: darken(@background, 10%);
-        border-color: darken(@border, 12%);
-  }
-  &:active,
-  &.active,
-  .open > .dropdown-toggle& {
-    color: @color;
-    background-color: darken(@background, 10%);
-        border-color: darken(@border, 12%);
-
-    &:hover,
-    &:focus,
-    &.focus {
-      color: @color;
-      background-color: darken(@background, 17%);
-          border-color: darken(@border, 25%);
-    }
-  }
-  &:active,
-  &.active,
-  .open > .dropdown-toggle& {
-    background-image: none;
-  }
-  &.disabled,
-  &[disabled],
-  fieldset[disabled] & {
-    &:hover,
-    &:focus,
-    &.focus {
-      background-color: @background;
-          border-color: @border;
-    }
-  }
-
-  .badge {
-    color: @background;
-    background-color: @color;
-  }
-}
-
-// Button sizes
-.button-size(@padding-vertical; @padding-horizontal; @font-size; @line-height; @border-radius) {
-  padding: @padding-vertical @padding-horizontal;
-  font-size: @font-size;
-  line-height: @line-height;
-  border-radius: @border-radius;
-}
diff --git a/css/bootstrap/mixins/center-block.less b/css/bootstrap/mixins/center-block.less
deleted file mode 100644
index d18d6de..0000000
--- a/css/bootstrap/mixins/center-block.less
+++ /dev/null
@@ -1,7 +0,0 @@
-// Center-align a block level element
-
-.center-block() {
-  display: block;
-  margin-left: auto;
-  margin-right: auto;
-}
diff --git a/css/bootstrap/mixins/clearfix.less b/css/bootstrap/mixins/clearfix.less
deleted file mode 100644
index 3f7a382..0000000
--- a/css/bootstrap/mixins/clearfix.less
+++ /dev/null
@@ -1,22 +0,0 @@
-// Clearfix
-//
-// For modern browsers
-// 1. The space content is one way to avoid an Opera bug when the
-//    contenteditable attribute is included anywhere else in the document.
-//    Otherwise it causes space to appear at the top and bottom of elements
-//    that are clearfixed.
-// 2. The use of `table` rather than `block` is only necessary if using
-//    `:before` to contain the top-margins of child elements.
-//
-// Source: http://nicolasgallagher.com/micro-clearfix-hack/
-
-.clearfix() {
-  &:before,
-  &:after {
-    content: " "; // 1
-    display: table; // 2
-  }
-  &:after {
-    clear: both;
-  }
-}
diff --git a/css/bootstrap/mixins/forms.less b/css/bootstrap/mixins/forms.less
deleted file mode 100644
index 6f55ed9..0000000
--- a/css/bootstrap/mixins/forms.less
+++ /dev/null
@@ -1,85 +0,0 @@
-// Form validation states
-//
-// Used in forms.less to generate the form validation CSS for warnings, errors,
-// and successes.
-
-.form-control-validation(@text-color: #555; @border-color: #ccc; @background-color: #f5f5f5) {
-  // Color the label and help text
-  .help-block,
-  .control-label,
-  .radio,
-  .checkbox,
-  .radio-inline,
-  .checkbox-inline,
-  &.radio label,
-  &.checkbox label,
-  &.radio-inline label,
-  &.checkbox-inline label  {
-    color: @text-color;
-  }
-  // Set the border and box shadow on specific inputs to match
-  .form-control {
-    border-color: @border-color;
-    .box-shadow(inset 0 1px 1px rgba(0,0,0,.075)); // Redeclare so transitions work
-    &:focus {
-      border-color: darken(@border-color, 10%);
-      @shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 6px lighten(@border-color, 20%);
-      .box-shadow(@shadow);
-    }
-  }
-  // Set validation states also for addons
-  .input-group-addon {
-    color: @text-color;
-    border-color: @border-color;
-    background-color: @background-color;
-  }
-  // Optional feedback icon
-  .form-control-feedback {
-    color: @text-color;
-  }
-}
-
-
-// Form control focus state
-//
-// Generate a customized focus state and for any input with the specified color,
-// which defaults to the `@input-border-focus` variable.
-//
-// We highly encourage you to not customize the default value, but instead use
-// this to tweak colors on an as-needed basis. This aesthetic change is based on
-// WebKit's default styles, but applicable to a wider range of browsers. Its
-// usability and accessibility should be taken into account with any change.
-//
-// Example usage: change the default blue border and shadow to white for better
-// contrast against a dark gray background.
-.form-control-focus(@color: @input-border-focus) {
-  @color-rgba: rgba(red(@color), green(@color), blue(@color), .6);
-  &:focus {
-    border-color: @color;
-    outline: 0;
-    .box-shadow(~"inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px @{color-rgba}");
-  }
-}
-
-// Form control sizing
-//
-// Relative text size, padding, and border-radii changes for form controls. For
-// horizontal sizing, wrap controls in the predefined grid classes. `<select>`
-// element gets special love because it's special, and that's a fact!
-.input-size(@input-height; @padding-vertical; @padding-horizontal; @font-size; @line-height; @border-radius) {
-  height: @input-height;
-  padding: @padding-vertical @padding-horizontal;
-  font-size: @font-size;
-  line-height: @line-height;
-  border-radius: @border-radius;
-
-  select& {
-    height: @input-height;
-    line-height: @input-height;
-  }
-
-  textarea&,
-  select[multiple]& {
-    height: auto;
-  }
-}
diff --git a/css/bootstrap/mixins/gradients.less b/css/bootstrap/mixins/gradients.less
deleted file mode 100644
index 0b88a89..0000000
--- a/css/bootstrap/mixins/gradients.less
+++ /dev/null
@@ -1,59 +0,0 @@
-// Gradients
-
-#gradient {
-
-  // Horizontal gradient, from left to right
-  //
-  // Creates two color stops, start and end, by specifying a color and position for each color stop.
-  // Color stops are not available in IE9 and below.
-  .horizontal(@start-color: #555; @end-color: #333; @start-percent: 0%; @end-percent: 100%) {
-    background-image: -webkit-linear-gradient(left, @start-color @start-percent, @end-color @end-percent); // Safari 5.1-6, Chrome 10+
-    background-image: -o-linear-gradient(left, @start-color @start-percent, @end-color @end-percent); // Opera 12
-    background-image: linear-gradient(to right, @start-color @start-percent, @end-color @end-percent); // Standard, IE10, Firefox 16+, Opera 12.10+, Safari 7+, Chrome 26+
-    background-repeat: repeat-x;
-    filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=1)",argb(@start-color),argb(@end-color))); // IE9 and down
-  }
-
-  // Vertical gradient, from top to bottom
-  //
-  // Creates two color stops, start and end, by specifying a color and position for each color stop.
-  // Color stops are not available in IE9 and below.
-  .vertical(@start-color: #555; @end-color: #333; @start-percent: 0%; @end-percent: 100%) {
-    background-image: -webkit-linear-gradient(top, @start-color @start-percent, @end-color @end-percent);  // Safari 5.1-6, Chrome 10+
-    background-image: -o-linear-gradient(top, @start-color @start-percent, @end-color @end-percent);  // Opera 12
-    background-image: linear-gradient(to bottom, @start-color @start-percent, @end-color @end-percent); // Standard, IE10, Firefox 16+, Opera 12.10+, Safari 7+, Chrome 26+
-    background-repeat: repeat-x;
-    filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",argb(@start-color),argb(@end-color))); // IE9 and down
-  }
-
-  .directional(@start-color: #555; @end-color: #333; @deg: 45deg) {
-    background-repeat: repeat-x;
-    background-image: -webkit-linear-gradient(@deg, @start-color, @end-color); // Safari 5.1-6, Chrome 10+
-    background-image: -o-linear-gradient(@deg, @start-color, @end-color); // Opera 12
-    background-image: linear-gradient(@deg, @start-color, @end-color); // Standard, IE10, Firefox 16+, Opera 12.10+, Safari 7+, Chrome 26+
-  }
-  .horizontal-three-colors(@start-color: #00b3ee; @mid-color: #7a43b6; @color-stop: 50%; @end-color: #c3325f) {
-    background-image: -webkit-linear-gradient(left, @start-color, @mid-color @color-stop, @end-color);
-    background-image: -o-linear-gradient(left, @start-color, @mid-color @color-stop, @end-color);
-    background-image: linear-gradient(to right, @start-color, @mid-color @color-stop, @end-color);
-    background-repeat: no-repeat;
-    filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=1)",argb(@start-color),argb(@end-color))); // IE9 and down, gets no color-stop at all for proper fallback
-  }
-  .vertical-three-colors(@start-color: #00b3ee; @mid-color: #7a43b6; @color-stop: 50%; @end-color: #c3325f) {
-    background-image: -webkit-linear-gradient(@start-color, @mid-color @color-stop, @end-color);
-    background-image: -o-linear-gradient(@start-color, @mid-color @color-stop, @end-color);
-    background-image: linear-gradient(@start-color, @mid-color @color-stop, @end-color);
-    background-repeat: no-repeat;
-    filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",argb(@start-color),argb(@end-color))); // IE9 and down, gets no color-stop at all for proper fallback
-  }
-  .radial(@inner-color: #555; @outer-color: #333) {
-    background-image: -webkit-radial-gradient(circle, @inner-color, @outer-color);
-    background-image: radial-gradient(circle, @inner-color, @outer-color);
-    background-repeat: no-repeat;
-  }
-  .striped(@color: rgba(255,255,255,.15); @angle: 45deg) {
-    background-image: -webkit-linear-gradient(@angle, @color 25%, transparent 25%, transparent 50%, @color 50%, @color 75%, transparent 75%, transparent);
-    background-image: -o-linear-gradient(@angle, @color 25%, transparent 25%, transparent 50%, @color 50%, @color 75%, transparent 75%, transparent);
-    background-image: linear-gradient(@angle, @color 25%, transparent 25%, transparent 50%, @color 50%, @color 75%, transparent 75%, transparent);
-  }
-}
diff --git a/css/bootstrap/mixins/grid-framework.less b/css/bootstrap/mixins/grid-framework.less
deleted file mode 100644
index 8c23eed..0000000
--- a/css/bootstrap/mixins/grid-framework.less
+++ /dev/null
@@ -1,91 +0,0 @@
-// Framework grid generation
-//
-// Used only by Bootstrap to generate the correct number of grid classes given
-// any value of `@grid-columns`.
-
-.make-grid-columns() {
-  // Common styles for all sizes of grid columns, widths 1-12
-  .col(@index) { // initial
-    @item: ~".col-xs-@{index}, .col-sm-@{index}, .col-md-@{index}, .col-lg-@{index}";
-    .col((@index + 1), @item);
-  }
-  .col(@index, @list) when (@index =< @grid-columns) { // general; "=<" isn't a typo
-    @item: ~".col-xs-@{index}, .col-sm-@{index}, .col-md-@{index}, .col-lg-@{index}";
-    .col((@index + 1), ~"@{list}, @{item}");
-  }
-  .col(@index, @list) when (@index > @grid-columns) { // terminal
-    @{list} {
-      position: relative;
-      // Prevent columns from collapsing when empty
-      min-height: 1px;
-      // Inner gutter via padding
-      padding-left:  ceil((@grid-gutter-width / 2));
-      padding-right: floor((@grid-gutter-width / 2));
-    }
-  }
-  .col(1); // kickstart it
-}
-
-.float-grid-columns(@class) {
-  .col(@index) { // initial
-    @item: ~".col-@{class}-@{index}";
-    .col((@index + 1), @item);
-  }
-  .col(@index, @list) when (@index =< @grid-columns) { // general
-    @item: ~".col-@{class}-@{index}";
-    .col((@index + 1), ~"@{list}, @{item}");
-  }
-  .col(@index, @list) when (@index > @grid-columns) { // terminal
-    @{list} {
-      float: left;
-    }
-  }
-  .col(1); // kickstart it
-}
-
-.calc-grid-column(@index, @class, @type) when (@type = width) and (@index > 0) {
-  .col-@{class}-@{index} {
-    width: percentage((@index / @grid-columns));
-  }
-}
-.calc-grid-column(@index, @class, @type) when (@type = push) and (@index > 0) {
-  .col-@{class}-push-@{index} {
-    left: percentage((@index / @grid-columns));
-  }
-}
-.calc-grid-column(@index, @class, @type) when (@type = push) and (@index = 0) {
-  .col-@{class}-push-0 {
-    left: auto;
-  }
-}
-.calc-grid-column(@index, @class, @type) when (@type = pull) and (@index > 0) {
-  .col-@{class}-pull-@{index} {
-    right: percentage((@index / @grid-columns));
-  }
-}
-.calc-grid-column(@index, @class, @type) when (@type = pull) and (@index = 0) {
-  .col-@{class}-pull-0 {
-    right: auto;
-  }
-}
-.calc-grid-column(@index, @class, @type) when (@type = offset) {
-  .col-@{class}-offset-@{index} {
-    margin-left: percentage((@index / @grid-columns));
-  }
-}
-
-// Basic looping in LESS
-.loop-grid-columns(@index, @class, @type) when (@index >= 0) {
-  .calc-grid-column(@index, @class, @type);
-  // next iteration
-  .loop-grid-columns((@index - 1), @class, @type);
-}
-
-// Create grid for specific class
-.make-grid(@class) {
-  .float-grid-columns(@class);
-  .loop-grid-columns(@grid-columns, @class, width);
-  .loop-grid-columns(@grid-columns, @class, pull);
-  .loop-grid-columns(@grid-columns, @class, push);
-  .loop-grid-columns(@grid-columns, @class, offset);
-}
diff --git a/css/bootstrap/mixins/grid.less b/css/bootstrap/mixins/grid.less
deleted file mode 100644
index df496d0..0000000
--- a/css/bootstrap/mixins/grid.less
+++ /dev/null
@@ -1,122 +0,0 @@
-// Grid system
-//
-// Generate semantic grid columns with these mixins.
-
-// Centered container element
-.container-fixed(@gutter: @grid-gutter-width) {
-  margin-right: auto;
-  margin-left: auto;
-  padding-left:  floor((@gutter / 2));
-  padding-right: ceil((@gutter / 2));
-  &:extend(.clearfix all);
-}
-
-// Creates a wrapper for a series of columns
-.make-row(@gutter: @grid-gutter-width) {
-  margin-left:  ceil((@gutter / -2));
-  margin-right: floor((@gutter / -2));
-  &:extend(.clearfix all);
-}
-
-// Generate the extra small columns
-.make-xs-column(@columns; @gutter: @grid-gutter-width) {
-  position: relative;
-  float: left;
-  width: percentage((@columns / @grid-columns));
-  min-height: 1px;
-  padding-left:  (@gutter / 2);
-  padding-right: (@gutter / 2);
-}
-.make-xs-column-offset(@columns) {
-  margin-left: percentage((@columns / @grid-columns));
-}
-.make-xs-column-push(@columns) {
-  left: percentage((@columns / @grid-columns));
-}
-.make-xs-column-pull(@columns) {
-  right: percentage((@columns / @grid-columns));
-}
-
-// Generate the small columns
-.make-sm-column(@columns; @gutter: @grid-gutter-width) {
-  position: relative;
-  min-height: 1px;
-  padding-left:  (@gutter / 2);
-  padding-right: (@gutter / 2);
-
-  @media (min-width: @screen-sm-min) {
-    float: left;
-    width: percentage((@columns / @grid-columns));
-  }
-}
-.make-sm-column-offset(@columns) {
-  @media (min-width: @screen-sm-min) {
-    margin-left: percentage((@columns / @grid-columns));
-  }
-}
-.make-sm-column-push(@columns) {
-  @media (min-width: @screen-sm-min) {
-    left: percentage((@columns / @grid-columns));
-  }
-}
-.make-sm-column-pull(@columns) {
-  @media (min-width: @screen-sm-min) {
-    right: percentage((@columns / @grid-columns));
-  }
-}
-
-// Generate the medium columns
-.make-md-column(@columns; @gutter: @grid-gutter-width) {
-  position: relative;
-  min-height: 1px;
-  padding-left:  (@gutter / 2);
-  padding-right: (@gutter / 2);
-
-  @media (min-width: @screen-md-min) {
-    float: left;
-    width: percentage((@columns / @grid-columns));
-  }
-}
-.make-md-column-offset(@columns) {
-  @media (min-width: @screen-md-min) {
-    margin-left: percentage((@columns / @grid-columns));
-  }
-}
-.make-md-column-push(@columns) {
-  @media (min-width: @screen-md-min) {
-    left: percentage((@columns / @grid-columns));
-  }
-}
-.make-md-column-pull(@columns) {
-  @media (min-width: @screen-md-min) {
-    right: percentage((@columns / @grid-columns));
-  }
-}
-
-// Generate the large columns
-.make-lg-column(@columns; @gutter: @grid-gutter-width) {
-  position: relative;
-  min-height: 1px;
-  padding-left:  (@gutter / 2);
-  padding-right: (@gutter / 2);
-
-  @media (min-width: @screen-lg-min) {
-    float: left;
-    width: percentage((@columns / @grid-columns));
-  }
-}
-.make-lg-column-offset(@columns) {
-  @media (min-width: @screen-lg-min) {
-    margin-left: percentage((@columns / @grid-columns));
-  }
-}
-.make-lg-column-push(@columns) {
-  @media (min-width: @screen-lg-min) {
-    left: percentage((@columns / @grid-columns));
-  }
-}
-.make-lg-column-pull(@columns) {
-  @media (min-width: @screen-lg-min) {
-    right: percentage((@columns / @grid-columns));
-  }
-}
diff --git a/css/bootstrap/mixins/hide-text.less b/css/bootstrap/mixins/hide-text.less
deleted file mode 100644
index 2bb84a3..0000000
--- a/css/bootstrap/mixins/hide-text.less
+++ /dev/null
@@ -1,21 +0,0 @@
-// CSS image replacement
-//
-// Heads up! v3 launched with only `.hide-text()`, but per our pattern for
-// mixins being reused as classes with the same name, this doesn't hold up. As
-// of v3.0.1 we have added `.text-hide()` and deprecated `.hide-text()`.
-//
-// Source: https://github.com/h5bp/html5-boilerplate/commit/aa0396eae757
-
-// Deprecated as of v3.0.1 (has been removed in v4)
-.hide-text() {
-  font: ~"0/0" a;
-  color: transparent;
-  text-shadow: none;
-  background-color: transparent;
-  border: 0;
-}
-
-// New mixin to use as of v3.0.1
-.text-hide() {
-  .hide-text();
-}
diff --git a/css/bootstrap/mixins/image.less b/css/bootstrap/mixins/image.less
deleted file mode 100644
index f233cb3..0000000
--- a/css/bootstrap/mixins/image.less
+++ /dev/null
@@ -1,33 +0,0 @@
-// Image Mixins
-// - Responsive image
-// - Retina image
-
-
-// Responsive image
-//
-// Keep images from scaling beyond the width of their parents.
-.img-responsive(@display: block) {
-  display: @display;
-  max-width: 100%; // Part 1: Set a maximum relative to the parent
-  height: auto; // Part 2: Scale the height according to the width, otherwise you get stretching
-}
-
-
-// Retina image
-//
-// Short retina mixin for setting background-image and -size. Note that the
-// spelling of `min--moz-device-pixel-ratio` is intentional.
-.img-retina(@file-1x; @file-2x; @width-1x; @height-1x) {
-  background-image: url("@{file-1x}");
-
-  @media
-  only screen and (-webkit-min-device-pixel-ratio: 2),
-  only screen and (   min--moz-device-pixel-ratio: 2),
-  only screen and (     -o-min-device-pixel-ratio: 2/1),
-  only screen and (        min-device-pixel-ratio: 2),
-  only screen and (                min-resolution: 192dpi),
-  only screen and (                min-resolution: 2dppx) {
-    background-image: url("@{file-2x}");
-    background-size: @width-1x @height-1x;
-  }
-}
diff --git a/css/bootstrap/mixins/labels.less b/css/bootstrap/mixins/labels.less
deleted file mode 100644
index 9f7a67e..0000000
--- a/css/bootstrap/mixins/labels.less
+++ /dev/null
@@ -1,12 +0,0 @@
-// Labels
-
-.label-variant(@color) {
-  background-color: @color;
-
-  &[href] {
-    &:hover,
-    &:focus {
-      background-color: darken(@color, 10%);
-    }
-  }
-}
diff --git a/css/bootstrap/mixins/list-group.less b/css/bootstrap/mixins/list-group.less
deleted file mode 100644
index 03aa190..0000000
--- a/css/bootstrap/mixins/list-group.less
+++ /dev/null
@@ -1,30 +0,0 @@
-// List Groups
-
-.list-group-item-variant(@state; @background; @color) {
-  .list-group-item-@{state} {
-    color: @color;
-    background-color: @background;
-
-    a&,
-    button& {
-      color: @color;
-
-      .list-group-item-heading {
-        color: inherit;
-      }
-
-      &:hover,
-      &:focus {
-        color: @color;
-        background-color: darken(@background, 5%);
-      }
-      &.active,
-      &.active:hover,
-      &.active:focus {
-        color: #fff;
-        background-color: @color;
-        border-color: @color;
-      }
-    }
-  }
-}
diff --git a/css/bootstrap/mixins/nav-divider.less b/css/bootstrap/mixins/nav-divider.less
deleted file mode 100644
index feb1e9e..0000000
--- a/css/bootstrap/mixins/nav-divider.less
+++ /dev/null
@@ -1,10 +0,0 @@
-// Horizontal dividers
-//
-// Dividers (basically an hr) within dropdowns and nav lists
-
-.nav-divider(@color: #e5e5e5) {
-  height: 1px;
-  margin: ((@line-height-computed / 2) - 1) 0;
-  overflow: hidden;
-  background-color: @color;
-}
diff --git a/css/bootstrap/mixins/nav-vertical-align.less b/css/bootstrap/mixins/nav-vertical-align.less
deleted file mode 100644
index d458c78..0000000
--- a/css/bootstrap/mixins/nav-vertical-align.less
+++ /dev/null
@@ -1,9 +0,0 @@
-// Navbar vertical align
-//
-// Vertically center elements in the navbar.
-// Example: an element has a height of 30px, so write out `.navbar-vertical-align(30px);` to calculate the appropriate top margin.
-
-.navbar-vertical-align(@element-height) {
-  margin-top: ((@navbar-height - @element-height) / 2);
-  margin-bottom: ((@navbar-height - @element-height) / 2);
-}
diff --git a/css/bootstrap/mixins/opacity.less b/css/bootstrap/mixins/opacity.less
deleted file mode 100644
index 33ed25c..0000000
--- a/css/bootstrap/mixins/opacity.less
+++ /dev/null
@@ -1,8 +0,0 @@
-// Opacity
-
-.opacity(@opacity) {
-  opacity: @opacity;
-  // IE8 filter
-  @opacity-ie: (@opacity * 100);
-  filter: ~"alpha(opacity=@{opacity-ie})";
-}
diff --git a/css/bootstrap/mixins/pagination.less b/css/bootstrap/mixins/pagination.less
deleted file mode 100644
index 618804f..0000000
--- a/css/bootstrap/mixins/pagination.less
+++ /dev/null
@@ -1,24 +0,0 @@
-// Pagination
-
-.pagination-size(@padding-vertical; @padding-horizontal; @font-size; @line-height; @border-radius) {
-  > li {
-    > a,
-    > span {
-      padding: @padding-vertical @padding-horizontal;
-      font-size: @font-size;
-      line-height: @line-height;
-    }
-    &:first-child {
-      > a,
-      > span {
-        .border-left-radius(@border-radius);
-      }
-    }
-    &:last-child {
-      > a,
-      > span {
-        .border-right-radius(@border-radius);
-      }
-    }
-  }
-}
diff --git a/css/bootstrap/mixins/panels.less b/css/bootstrap/mixins/panels.less
deleted file mode 100644
index 49ee10d..0000000
--- a/css/bootstrap/mixins/panels.less
+++ /dev/null
@@ -1,24 +0,0 @@
-// Panels
-
-.panel-variant(@border; @heading-text-color; @heading-bg-color; @heading-border) {
-  border-color: @border;
-
-  & > .panel-heading {
-    color: @heading-text-color;
-    background-color: @heading-bg-color;
-    border-color: @heading-border;
-
-    + .panel-collapse > .panel-body {
-      border-top-color: @border;
-    }
-    .badge {
-      color: @heading-bg-color;
-      background-color: @heading-text-color;
-    }
-  }
-  & > .panel-footer {
-    + .panel-collapse > .panel-body {
-      border-bottom-color: @border;
-    }
-  }
-}
diff --git a/css/bootstrap/mixins/progress-bar.less b/css/bootstrap/mixins/progress-bar.less
deleted file mode 100644
index f07996a..0000000
--- a/css/bootstrap/mixins/progress-bar.less
+++ /dev/null
@@ -1,10 +0,0 @@
-// Progress bars
-
-.progress-bar-variant(@color) {
-  background-color: @color;
-
-  // Deprecated parent class requirement as of v3.2.0
-  .progress-striped & {
-    #gradient > .striped();
-  }
-}
diff --git a/css/bootstrap/mixins/reset-filter.less b/css/bootstrap/mixins/reset-filter.less
deleted file mode 100644
index 68cdb5e..0000000
--- a/css/bootstrap/mixins/reset-filter.less
+++ /dev/null
@@ -1,8 +0,0 @@
-// Reset filters for IE
-//
-// When you need to remove a gradient background, do not forget to use this to reset
-// the IE filter for IE9 and below.
-
-.reset-filter() {
-  filter: e(%("progid:DXImageTransform.Microsoft.gradient(enabled = false)"));
-}
diff --git a/css/bootstrap/mixins/responsive-visibility.less b/css/bootstrap/mixins/responsive-visibility.less
deleted file mode 100644
index ecf1e97..0000000
--- a/css/bootstrap/mixins/responsive-visibility.less
+++ /dev/null
@@ -1,15 +0,0 @@
-// Responsive utilities
-
-//
-// More easily include all the states for responsive-utilities.less.
-.responsive-visibility() {
-  display: block !important;
-  table&  { display: table !important; }
-  tr&     { display: table-row !important; }
-  th&,
-  td&     { display: table-cell !important; }
-}
-
-.responsive-invisibility() {
-  display: none !important;
-}
diff --git a/css/bootstrap/mixins/size.less b/css/bootstrap/mixins/size.less
deleted file mode 100644
index a8be650..0000000
--- a/css/bootstrap/mixins/size.less
+++ /dev/null
@@ -1,10 +0,0 @@
-// Sizing shortcuts
-
-.size(@width; @height) {
-  width: @width;
-  height: @height;
-}
-
-.square(@size) {
-  .size(@size; @size);
-}
diff --git a/css/bootstrap/mixins/tab-focus.less b/css/bootstrap/mixins/tab-focus.less
deleted file mode 100644
index d12d236..0000000
--- a/css/bootstrap/mixins/tab-focus.less
+++ /dev/null
@@ -1,9 +0,0 @@
-// WebKit-style focus
-
-.tab-focus() {
-  // WebKit-specific. Other browsers will keep their default outline style.
-  // (Initially tried to also force default via `outline: initial`,
-  // but that seems to erroneously remove the outline in Firefox altogether.)
-  outline: 5px auto -webkit-focus-ring-color;
-  outline-offset: -2px;
-}
diff --git a/css/bootstrap/mixins/table-row.less b/css/bootstrap/mixins/table-row.less
deleted file mode 100644
index 0f287f1..0000000
--- a/css/bootstrap/mixins/table-row.less
+++ /dev/null
@@ -1,28 +0,0 @@
-// Tables
-
-.table-row-variant(@state; @background) {
-  // Exact selectors below required to override `.table-striped` and prevent
-  // inheritance to nested tables.
-  .table > thead > tr,
-  .table > tbody > tr,
-  .table > tfoot > tr {
-    > td.@{state},
-    > th.@{state},
-    &.@{state} > td,
-    &.@{state} > th {
-      background-color: @background;
-    }
-  }
-
-  // Hover states for `.table-hover`
-  // Note: this is not available for cells or rows within `thead` or `tfoot`.
-  .table-hover > tbody > tr {
-    > td.@{state}:hover,
-    > th.@{state}:hover,
-    &.@{state}:hover > td,
-    &:hover > .@{state},
-    &.@{state}:hover > th {
-      background-color: darken(@background, 5%);
-    }
-  }
-}
diff --git a/css/bootstrap/mixins/text-emphasis.less b/css/bootstrap/mixins/text-emphasis.less
deleted file mode 100644
index 9e8a77a..0000000
--- a/css/bootstrap/mixins/text-emphasis.less
+++ /dev/null
@@ -1,9 +0,0 @@
-// Typography
-
-.text-emphasis-variant(@color) {
-  color: @color;
-  a&:hover,
-  a&:focus {
-    color: darken(@color, 10%);
-  }
-}
diff --git a/css/bootstrap/mixins/vendor-prefixes.less b/css/bootstrap/mixins/vendor-prefixes.less
deleted file mode 100644
index 2b5e74b..0000000
--- a/css/bootstrap/mixins/vendor-prefixes.less
+++ /dev/null
@@ -1,227 +0,0 @@
-// Vendor Prefixes
-//
-// All vendor mixins are deprecated as of v3.2.0 due to the introduction of
-// Autoprefixer in our Gruntfile. They have been removed in v4.
-
-// - Animations
-// - Backface visibility
-// - Box shadow
-// - Box sizing
-// - Content columns
-// - Hyphens
-// - Placeholder text
-// - Transformations
-// - Transitions
-// - User Select
-
-
-// Animations
-.animation(@animation) {
-  -webkit-animation: @animation;
-       -o-animation: @animation;
-          animation: @animation;
-}
-.animation-name(@name) {
-  -webkit-animation-name: @name;
-          animation-name: @name;
-}
-.animation-duration(@duration) {
-  -webkit-animation-duration: @duration;
-          animation-duration: @duration;
-}
-.animation-timing-function(@timing-function) {
-  -webkit-animation-timing-function: @timing-function;
-          animation-timing-function: @timing-function;
-}
-.animation-delay(@delay) {
-  -webkit-animation-delay: @delay;
-          animation-delay: @delay;
-}
-.animation-iteration-count(@iteration-count) {
-  -webkit-animation-iteration-count: @iteration-count;
-          animation-iteration-count: @iteration-count;
-}
-.animation-direction(@direction) {
-  -webkit-animation-direction: @direction;
-          animation-direction: @direction;
-}
-.animation-fill-mode(@fill-mode) {
-  -webkit-animation-fill-mode: @fill-mode;
-          animation-fill-mode: @fill-mode;
-}
-
-// Backface visibility
-// Prevent browsers from flickering when using CSS 3D transforms.
-// Default value is `visible`, but can be changed to `hidden`
-
-.backface-visibility(@visibility) {
-  -webkit-backface-visibility: @visibility;
-     -moz-backface-visibility: @visibility;
-          backface-visibility: @visibility;
-}
-
-// Drop shadows
-//
-// Note: Deprecated `.box-shadow()` as of v3.1.0 since all of Bootstrap's
-// supported browsers that have box shadow capabilities now support it.
-
-.box-shadow(@shadow) {
-  -webkit-box-shadow: @shadow; // iOS <4.3 & Android <4.1
-          box-shadow: @shadow;
-}
-
-// Box sizing
-.box-sizing(@boxmodel) {
-  -webkit-box-sizing: @boxmodel;
-     -moz-box-sizing: @boxmodel;
-          box-sizing: @boxmodel;
-}
-
-// CSS3 Content Columns
-.content-columns(@column-count; @column-gap: @grid-gutter-width) {
-  -webkit-column-count: @column-count;
-     -moz-column-count: @column-count;
-          column-count: @column-count;
-  -webkit-column-gap: @column-gap;
-     -moz-column-gap: @column-gap;
-          column-gap: @column-gap;
-}
-
-// Optional hyphenation
-.hyphens(@mode: auto) {
-  word-wrap: break-word;
-  -webkit-hyphens: @mode;
-     -moz-hyphens: @mode;
-      -ms-hyphens: @mode; // IE10+
-       -o-hyphens: @mode;
-          hyphens: @mode;
-}
-
-// Placeholder text
-.placeholder(@color: @input-color-placeholder) {
-  // Firefox
-  &::-moz-placeholder {
-    color: @color;
-    opacity: 1; // Override Firefox's unusual default opacity; see https://github.com/twbs/bootstrap/pull/11526
-  }
-  &:-ms-input-placeholder { color: @color; } // Internet Explorer 10+
-  &::-webkit-input-placeholder  { color: @color; } // Safari and Chrome
-}
-
-// Transformations
-.scale(@ratio) {
-  -webkit-transform: scale(@ratio);
-      -ms-transform: scale(@ratio); // IE9 only
-       -o-transform: scale(@ratio);
-          transform: scale(@ratio);
-}
-.scale(@ratioX; @ratioY) {
-  -webkit-transform: scale(@ratioX, @ratioY);
-      -ms-transform: scale(@ratioX, @ratioY); // IE9 only
-       -o-transform: scale(@ratioX, @ratioY);
-          transform: scale(@ratioX, @ratioY);
-}
-.scaleX(@ratio) {
-  -webkit-transform: scaleX(@ratio);
-      -ms-transform: scaleX(@ratio); // IE9 only
-       -o-transform: scaleX(@ratio);
-          transform: scaleX(@ratio);
-}
-.scaleY(@ratio) {
-  -webkit-transform: scaleY(@ratio);
-      -ms-transform: scaleY(@ratio); // IE9 only
-       -o-transform: scaleY(@ratio);
-          transform: scaleY(@ratio);
-}
-.skew(@x; @y) {
-  -webkit-transform: skewX(@x) skewY(@y);
-      -ms-transform: skewX(@x) skewY(@y); // See https://github.com/twbs/bootstrap/issues/4885; IE9+
-       -o-transform: skewX(@x) skewY(@y);
-          transform: skewX(@x) skewY(@y);
-}
-.translate(@x; @y) {
-  -webkit-transform: translate(@x, @y);
-      -ms-transform: translate(@x, @y); // IE9 only
-       -o-transform: translate(@x, @y);
-          transform: translate(@x, @y);
-}
-.translate3d(@x; @y; @z) {
-  -webkit-transform: translate3d(@x, @y, @z);
-          transform: translate3d(@x, @y, @z);
-}
-.rotate(@degrees) {
-  -webkit-transform: rotate(@degrees);
-      -ms-transform: rotate(@degrees); // IE9 only
-       -o-transform: rotate(@degrees);
-          transform: rotate(@degrees);
-}
-.rotateX(@degrees) {
-  -webkit-transform: rotateX(@degrees);
-      -ms-transform: rotateX(@degrees); // IE9 only
-       -o-transform: rotateX(@degrees);
-          transform: rotateX(@degrees);
-}
-.rotateY(@degrees) {
-  -webkit-transform: rotateY(@degrees);
-      -ms-transform: rotateY(@degrees); // IE9 only
-       -o-transform: rotateY(@degrees);
-          transform: rotateY(@degrees);
-}
-.perspective(@perspective) {
-  -webkit-perspective: @perspective;
-     -moz-perspective: @perspective;
-          perspective: @perspective;
-}
-.perspective-origin(@perspective) {
-  -webkit-perspective-origin: @perspective;
-     -moz-perspective-origin: @perspective;
-          perspective-origin: @perspective;
-}
-.transform-origin(@origin) {
-  -webkit-transform-origin: @origin;
-     -moz-transform-origin: @origin;
-      -ms-transform-origin: @origin; // IE9 only
-          transform-origin: @origin;
-}
-
-
-// Transitions
-
-.transition(@transition) {
-  -webkit-transition: @transition;
-       -o-transition: @transition;
-          transition: @transition;
-}
-.transition-property(@transition-property) {
-  -webkit-transition-property: @transition-property;
-          transition-property: @transition-property;
-}
-.transition-delay(@transition-delay) {
-  -webkit-transition-delay: @transition-delay;
-          transition-delay: @transition-delay;
-}
-.transition-duration(@transition-duration) {
-  -webkit-transition-duration: @transition-duration;
-          transition-duration: @transition-duration;
-}
-.transition-timing-function(@timing-function) {
-  -webkit-transition-timing-function: @timing-function;
-          transition-timing-function: @timing-function;
-}
-.transition-transform(@transition) {
-  -webkit-transition: -webkit-transform @transition;
-     -moz-transition: -moz-transform @transition;
-       -o-transition: -o-transform @transition;
-          transition: transform @transition;
-}
-
-
-// User select
-// For selecting text on the page
-
-.user-select(@select) {
-  -webkit-user-select: @select;
-     -moz-user-select: @select;
-      -ms-user-select: @select; // IE10+
-          user-select: @select;
-}
diff --git a/css/bootstrap/modals.less b/css/bootstrap/modals.less
deleted file mode 100644
index 5cf253c..0000000
--- a/css/bootstrap/modals.less
+++ /dev/null
@@ -1,150 +0,0 @@
-//
-// Modals
-// --------------------------------------------------
-
-// .modal-open      - body class for killing the scroll
-// .modal           - container to scroll within
-// .modal-dialog    - positioning shell for the actual modal
-// .modal-content   - actual modal w/ bg and corners and shit
-
-// Kill the scroll on the body
-.modal-open {
-  overflow: hidden;
-}
-
-// Container that the modal scrolls within
-.modal {
-  display: none;
-  overflow: hidden;
-  position: fixed;
-  top: 0;
-  right: 0;
-  bottom: 0;
-  left: 0;
-  z-index: @zindex-modal;
-  -webkit-overflow-scrolling: touch;
-
-  // Prevent Chrome on Windows from adding a focus outline. For details, see
-  // https://github.com/twbs/bootstrap/pull/10951.
-  outline: 0;
-
-  // When fading in the modal, animate it to slide down
-  &.fade .modal-dialog {
-    .translate(0, -25%);
-    .transition-transform(~"0.3s ease-out");
-  }
-  &.in .modal-dialog { .translate(0, 0) }
-}
-.modal-open .modal {
-  overflow-x: hidden;
-  overflow-y: auto;
-}
-
-// Shell div to position the modal with bottom padding
-.modal-dialog {
-  position: relative;
-  width: auto;
-  margin: 10px;
-}
-
-// Actual modal
-.modal-content {
-  position: relative;
-  background-color: @modal-content-bg;
-  border: 1px solid @modal-content-fallback-border-color; //old browsers fallback (ie8 etc)
-  border: 1px solid @modal-content-border-color;
-  border-radius: @modal-border-radius; //border-radius-large;
-  .box-shadow(0 3px 9px rgba(0,0,0,.5));
-  background-clip: padding-box;
-  // Remove focus outline from opened modal
-  outline: 0;
-}
-
-// Modal background
-.modal-backdrop {
-  position: fixed;
-  top: 0;
-  right: 0;
-  bottom: 0;
-  left: 0;
-  z-index: @zindex-modal-background;
-  background-color: @modal-backdrop-bg;
-  // Fade for backdrop
-  &.fade { .opacity(0); }
-  &.in { .opacity(@modal-backdrop-opacity); }
-}
-
-// Modal header
-// Top section of the modal w/ title and dismiss
-.modal-header {
-  padding: @modal-title-padding;
-  border-bottom: 1px solid @modal-header-border-color;
-  &:extend(.clearfix all);
-}
-// Close icon
-.modal-header .close {
-  margin-top: -2px;
-}
-
-// Title text within header
-.modal-title {
-  margin: 0;
-  line-height: @modal-title-line-height;
-}
-
-// Modal body
-// Where all modal content resides (sibling of .modal-header and .modal-footer)
-.modal-body {
-  position: relative;
-  padding: @modal-inner-padding;
-}
-
-// Footer (for actions)
-.modal-footer {
-  padding: @modal-inner-padding;
-  text-align: right; // right align buttons
-  border-top: 1px solid @modal-footer-border-color;
-  &:extend(.clearfix all); // clear it in case folks use .pull-* classes on buttons
-
-  // Properly space out buttons
-  .btn + .btn {
-    margin-left: 5px;
-    margin-bottom: 0; // account for input[type="submit"] which gets the bottom margin like all other inputs
-  }
-  // but override that for button groups
-  .btn-group .btn + .btn {
-    margin-left: -1px;
-  }
-  // and override it for block buttons as well
-  .btn-block + .btn-block {
-    margin-left: 0;
-  }
-}
-
-// Measure scrollbar width for padding body during modal show/hide
-.modal-scrollbar-measure {
-  position: absolute;
-  top: -9999px;
-  width: 50px;
-  height: 50px;
-  overflow: scroll;
-}
-
-// Scale up the modal
-@media (min-width: @screen-sm-min) {
-  // Automatically set modal's width for larger viewports
-  .modal-dialog {
-    width: @modal-md;
-    margin: 30px auto;
-  }
-  .modal-content {
-    .box-shadow(0 5px 15px rgba(0,0,0,.5));
-  }
-
-  // Modal sizes
-  .modal-sm { width: @modal-sm; }
-}
-
-@media (min-width: @screen-md-min) {
-  .modal-lg { width: @modal-lg; }
-}
diff --git a/css/bootstrap/navbar.less b/css/bootstrap/navbar.less
deleted file mode 100644
index fc07613..0000000
--- a/css/bootstrap/navbar.less
+++ /dev/null
@@ -1,660 +0,0 @@
-//
-// Navbars
-// --------------------------------------------------
-
-
-// Wrapper and base class
-//
-// Provide a static navbar from which we expand to create full-width, fixed, and
-// other navbar variations.
-
-.navbar {
-  position: relative;
-  min-height: @navbar-height; // Ensure a navbar always shows (e.g., without a .navbar-brand in collapsed mode)
-  margin-bottom: @navbar-margin-bottom;
-  // Nick border: 1px solid transparent;
-
-  // Prevent floats from breaking the navbar
-  &:extend(.clearfix all);
-
-  @media (min-width: @grid-float-breakpoint) {
-    border-radius: @navbar-border-radius;
-  }
-}
-
-
-// Navbar heading
-//
-// Groups `.navbar-brand` and `.navbar-toggle` into a single component for easy
-// styling of responsive aspects.
-
-.navbar-header {
-  &:extend(.clearfix all);
-
-  @media (min-width: @grid-float-breakpoint) {
-    float: left;
-  }
-}
-
-
-// Navbar collapse (body)
-//
-// Group your navbar content into this for easy collapsing and expanding across
-// various device sizes. By default, this content is collapsed when <768px, but
-// will expand past that for a horizontal display.
-//
-// To start (on mobile devices) the navbar links, forms, and buttons are stacked
-// vertically and include a `max-height` to overflow in case you have too much
-// content for the user's viewport.
-
-.navbar-collapse {
-  overflow-x: visible;
-  padding-right: @navbar-padding-horizontal;
-  padding-left:  @navbar-padding-horizontal;
-  border-top: 1px solid transparent;
-  box-shadow: inset 0 1px 0 rgba(255,255,255,.1);
-  &:extend(.clearfix all);
-  -webkit-overflow-scrolling: touch;
-
-  &.in {
-    overflow-y: auto;
-  }
-
-  @media (min-width: @grid-float-breakpoint) {
-    width: auto;
-    border-top: 0;
-    box-shadow: none;
-
-    &.collapse {
-      display: block !important;
-      height: auto !important;
-      padding-bottom: 0; // Override default setting
-      overflow: visible !important;
-    }
-
-    &.in {
-      overflow-y: visible;
-    }
-
-    // Undo the collapse side padding for navbars with containers to ensure
-    // alignment of right-aligned contents.
-    .navbar-fixed-top &,
-    .navbar-static-top &,
-    .navbar-fixed-bottom & {
-      padding-left: 0;
-      padding-right: 0;
-    }
-  }
-}
-
-.navbar-fixed-top,
-.navbar-fixed-bottom {
-  .navbar-collapse {
-    max-height: @navbar-collapse-max-height;
-
-    @media (max-device-width: @screen-xs-min) and (orientation: landscape) {
-      max-height: 200px;
-    }
-  }
-}
-
-
-// Both navbar header and collapse
-//
-// When a container is present, change the behavior of the header and collapse.
-
-.container,
-.container-fluid {
-  > .navbar-header,
-  > .navbar-collapse {
-    margin-right: -@navbar-padding-horizontal;
-    margin-left:  -@navbar-padding-horizontal;
-
-    @media (min-width: @grid-float-breakpoint) {
-      margin-right: 0;
-      margin-left:  0;
-    }
-  }
-}
-
-
-//
-// Navbar alignment options
-//
-// Display the navbar across the entirety of the page or fixed it to the top or
-// bottom of the page.
-
-// Static top (unfixed, but 100% wide) navbar
-.navbar-static-top {
-  z-index: @zindex-navbar;
-  border-width: 0 0 1px;
-
-  @media (min-width: @grid-float-breakpoint) {
-    border-radius: 0;
-  }
-}
-
-// Fix the top/bottom navbars when screen real estate supports it
-.navbar-fixed-top,
-.navbar-fixed-bottom {
-  position: fixed;
-  right: 0;
-  left: 0;
-  z-index: @zindex-navbar-fixed;
-
-  // Undo the rounded corners
-  @media (min-width: @grid-float-breakpoint) {
-    border-radius: 0;
-  }
-}
-.navbar-fixed-top {
-  top: 0;
-  border-width: 0 0 1px;
-}
-.navbar-fixed-bottom {
-  bottom: 0;
-  margin-bottom: 0; // override .navbar defaults
-  border-width: 1px 0 0;
-}
-
-
-// Brand/project name
-
-.navbar-brand {
-  float: left;
-  padding: @navbar-padding-vertical @navbar-padding-horizontal;
-  font-size: @font-size-large;
-  line-height: @line-height-computed;
-  height: @navbar-height;
-
-  &:hover,
-  &:focus {
-    text-decoration: none;
-  }
-
-  > img {
-    display: block;
-  }
-
-  @media (min-width: @grid-float-breakpoint) {
-    .navbar > .container &,
-    .navbar > .container-fluid & {
-      margin-left: -@navbar-padding-horizontal;
-    }
-  }
-}
-
-
-// Navbar toggle
-//
-// Custom button for toggling the `.navbar-collapse`, powered by the collapse
-// JavaScript plugin.
-
-.navbar-toggle {
-  position: relative;
-  float: right;
-  margin-right: @navbar-padding-horizontal;
-  padding: 9px 10px;
-  .navbar-vertical-align(34px);
-  background-color: transparent;
-  background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214
-  border: 1px solid transparent;
-  border-radius: @border-radius-base;
-
-  // We remove the `outline` here, but later compensate by attaching `:hover`
-  // styles to `:focus`.
-  &:focus {
-    outline: 0;
-  }
-
-  // Bars
-  .icon-bar {
-    display: block;
-    width: 22px;
-    height: 2px;
-    border-radius: 1px;
-  }
-  .icon-bar + .icon-bar {
-    margin-top: 4px;
-  }
-
-  @media (min-width: @grid-float-breakpoint) {
-    display: none;
-  }
-}
-
-
-// Navbar nav links
-//
-// Builds on top of the `.nav` components with its own modifier class to make
-// the nav the full height of the horizontal nav (above 768px).
-
-.navbar-nav {
-  margin: (@navbar-padding-vertical / 2) -@navbar-padding-horizontal;
-
-  > li > a {
-    padding-top:    10px;
-    padding-bottom: 10px;
-    line-height: @line-height-computed;
-  }
-
-  @media (max-width: @grid-float-breakpoint-max) {
-    // Dropdowns get custom display when collapsed
-    .open .dropdown-menu {
-      position: static;
-      float: none;
-      width: auto;
-      margin-top: 0;
-      background-color: transparent;
-      border: 0;
-      box-shadow: none;
-      > li > a,
-      .dropdown-header {
-        padding: 5px 15px 5px 25px;
-      }
-      > li > a {
-        line-height: @line-height-computed;
-        &:hover,
-        &:focus {
-          background-image: none;
-        }
-      }
-    }
-  }
-
-  // Uncollapse the nav
-  @media (min-width: @grid-float-breakpoint) {
-    float: left;
-    margin: 0;
-
-    > li {
-      float: left;
-      > a {
-        padding-top:    @navbar-padding-vertical;
-        padding-bottom: @navbar-padding-vertical;
-      }
-    }
-  }
-}
-
-
-// Navbar form
-//
-// Extension of the `.form-inline` with some extra flavor for optimum display in
-// our navbars.
-
-.navbar-form {
-  margin-left: -@navbar-padding-horizontal;
-  margin-right: -@navbar-padding-horizontal;
-  padding: 10px @navbar-padding-horizontal;
-  border-top: 1px solid transparent;
-  border-bottom: 1px solid transparent;
-  @shadow: inset 0 1px 0 rgba(255,255,255,.1), 0 1px 0 rgba(255,255,255,.1);
-  .box-shadow(@shadow);
-
-  // Mixin behavior for optimum display
-  .form-inline();
-
-  .form-group {
-    @media (max-width: @grid-float-breakpoint-max) {
-      margin-bottom: 5px;
-
-      &:last-child {
-        margin-bottom: 0;
-      }
-    }
-  }
-
-  // Vertically center in expanded, horizontal navbar
-  .navbar-vertical-align(@input-height-base);
-
-  // Undo 100% width for pull classes
-  @media (min-width: @grid-float-breakpoint) {
-    width: auto;
-    border: 0;
-    margin-left: 0;
-    margin-right: 0;
-    padding-top: 0;
-    padding-bottom: 0;
-    .box-shadow(none);
-  }
-}
-
-
-// Dropdown menus
-
-// Menu position and menu carets
-.navbar-nav > li > .dropdown-menu {
-  margin-top: 0;
-  .border-top-radius(0);
-}
-// Menu position and menu caret support for dropups via extra dropup class
-.navbar-fixed-bottom .navbar-nav > li > .dropdown-menu {
-  margin-bottom: 0;
-  .border-top-radius(@navbar-border-radius);
-  .border-bottom-radius(0);
-}
-
-
-// Buttons in navbars
-//
-// Vertically center a button within a navbar (when *not* in a form).
-
-.navbar-btn {
-  .navbar-vertical-align(@input-height-base);
-
-  &.btn-sm {
-    .navbar-vertical-align(@input-height-small);
-  }
-  &.btn-xs {
-    .navbar-vertical-align(22);
-  }
-}
-
-
-// Text in navbars
-//
-// Add a class to make any element properly align itself vertically within the navbars.
-
-.navbar-text {
-  .navbar-vertical-align(@line-height-computed);
-
-  @media (min-width: @grid-float-breakpoint) {
-    float: left;
-    margin-left: @navbar-padding-horizontal;
-    margin-right: @navbar-padding-horizontal;
-  }
-}
-
-
-// Component alignment
-//
-// Repurpose the pull utilities as their own navbar utilities to avoid specificity
-// issues with parents and chaining. Only do this when the navbar is uncollapsed
-// though so that navbar contents properly stack and align in mobile.
-//
-// Declared after the navbar components to ensure more specificity on the margins.
-
-@media (min-width: @grid-float-breakpoint) {
-  .navbar-left  { .pull-left(); }
-  .navbar-right {
-    .pull-right();
-    margin-right: -@navbar-padding-horizontal;
-
-    ~ .navbar-right {
-      margin-right: 0;
-    }
-  }
-}
-
-
-// Alternate navbars
-// --------------------------------------------------
-
-// Default navbar
-.navbar-default {
-  background-color: @navbar-default-bg;
-  border-color: @navbar-default-border;
-
-  .navbar-brand {
-    color: @navbar-default-brand-color;
-    &:hover,
-    &:focus {
-      color: @navbar-default-brand-hover-color;
-      background-color: @navbar-default-brand-hover-bg;
-    }
-  }
-
-  .navbar-text {
-    color: @navbar-default-color;
-  }
-
-  .navbar-nav {
-    > li > a {
-      color: @navbar-default-link-color;
-
-      &:hover,
-      &:focus {
-        color: @navbar-default-link-hover-color;
-        background-color: @navbar-default-link-hover-bg;
-      }
-    }
-    > .active > a {
-      &,
-      &:hover,
-      &:focus {
-        color: @navbar-default-link-active-color;
-        background-color: @navbar-default-link-active-bg;
-      }
-    }
-    > .disabled > a {
-      &,
-      &:hover,
-      &:focus {
-        color: @navbar-default-link-disabled-color;
-        background-color: @navbar-default-link-disabled-bg;
-      }
-    }
-  }
-
-  .navbar-toggle {
-    border-color: @navbar-default-toggle-border-color;
-    &:hover,
-    &:focus {
-      background-color: @navbar-default-toggle-hover-bg;
-    }
-    .icon-bar {
-      background-color: @navbar-default-toggle-icon-bar-bg;
-    }
-  }
-
-  .navbar-collapse,
-  .navbar-form {
-    border-color: @navbar-default-border;
-  }
-
-  // Dropdown menu items
-  .navbar-nav {
-    // Remove background color from open dropdown
-    > .open > a {
-      &,
-      &:hover,
-      &:focus {
-        background-color: @navbar-default-link-active-bg;
-        color: @navbar-default-link-active-color;
-      }
-    }
-
-    @media (max-width: @grid-float-breakpoint-max) {
-      // Dropdowns get custom display when collapsed
-      .open .dropdown-menu {
-        > li > a {
-          color: @navbar-default-link-color;
-          &:hover,
-          &:focus {
-            color: @navbar-default-link-hover-color;
-            background-color: @navbar-default-link-hover-bg;
-          }
-        }
-        > .active > a {
-          &,
-          &:hover,
-          &:focus {
-            color: @navbar-default-link-active-color;
-            background-color: @navbar-default-link-active-bg;
-          }
-        }
-        > .disabled > a {
-          &,
-          &:hover,
-          &:focus {
-            color: @navbar-default-link-disabled-color;
-            background-color: @navbar-default-link-disabled-bg;
-          }
-        }
-      }
-    }
-  }
-
-
-  // Links in navbars
-  //
-  // Add a class to ensure links outside the navbar nav are colored correctly.
-
-  .navbar-link {
-    color: @navbar-default-link-color;
-    &:hover {
-      color: @navbar-default-link-hover-color;
-    }
-  }
-
-  .btn-link {
-    color: @navbar-default-link-color;
-    &:hover,
-    &:focus {
-      color: @navbar-default-link-hover-color;
-    }
-    &[disabled],
-    fieldset[disabled] & {
-      &:hover,
-      &:focus {
-        color: @navbar-default-link-disabled-color;
-      }
-    }
-  }
-}
-
-// Inverse navbar
-
-.navbar-inverse {
-  background-color: @navbar-inverse-bg;
-  border-color: @navbar-inverse-border;
-
-  .navbar-brand {
-    color: @navbar-inverse-brand-color;
-    &:hover,
-    &:focus {
-      color: @navbar-inverse-brand-hover-color;
-      background-color: @navbar-inverse-brand-hover-bg;
-    }
-  }
-
-  .navbar-text {
-    color: @navbar-inverse-color;
-  }
-
-  .navbar-nav {
-    > li > a {
-      color: @navbar-inverse-link-color;
-
-      &:hover,
-      &:focus {
-        color: @navbar-inverse-link-hover-color;
-        background-color: @navbar-inverse-link-hover-bg;
-      }
-    }
-    > .active > a {
-      &,
-      &:hover,
-      &:focus {
-        color: @navbar-inverse-link-active-color;
-        background-color: @navbar-inverse-link-active-bg;
-      }
-    }
-    > .disabled > a {
-      &,
-      &:hover,
-      &:focus {
-        color: @navbar-inverse-link-disabled-color;
-        background-color: @navbar-inverse-link-disabled-bg;
-      }
-    }
-  }
-
-  // Darken the responsive nav toggle
-  .navbar-toggle {
-    border-color: @navbar-inverse-toggle-border-color;
-    &:hover,
-    &:focus {
-      background-color: @navbar-inverse-toggle-hover-bg;
-    }
-    .icon-bar {
-      background-color: @navbar-inverse-toggle-icon-bar-bg;
-    }
-  }
-
-  .navbar-collapse,
-  .navbar-form {
-    border-color: darken(@navbar-inverse-bg, 7%);
-  }
-
-  // Dropdowns
-  .navbar-nav {
-    > .open > a {
-      &,
-      &:hover,
-      &:focus {
-        background-color: @navbar-inverse-link-active-bg;
-        color: @navbar-inverse-link-active-color;
-      }
-    }
-
-    @media (max-width: @grid-float-breakpoint-max) {
-      // Dropdowns get custom display
-      .open .dropdown-menu {
-        > .dropdown-header {
-          border-color: @navbar-inverse-border;
-        }
-        .divider {
-          background-color: @navbar-inverse-border;
-        }
-        > li > a {
-          color: @navbar-inverse-link-color;
-          &:hover,
-          &:focus {
-            color: @navbar-inverse-link-hover-color;
-            background-color: @navbar-inverse-link-hover-bg;
-          }
-        }
-        > .active > a {
-          &,
-          &:hover,
-          &:focus {
-            color: @navbar-inverse-link-active-color;
-            background-color: @navbar-inverse-link-active-bg;
-          }
-        }
-        > .disabled > a {
-          &,
-          &:hover,
-          &:focus {
-            color: @navbar-inverse-link-disabled-color;
-            background-color: @navbar-inverse-link-disabled-bg;
-          }
-        }
-      }
-    }
-  }
-
-  .navbar-link {
-    color: @navbar-inverse-link-color;
-    &:hover {
-      color: @navbar-inverse-link-hover-color;
-    }
-  }
-
-  .btn-link {
-    color: @navbar-inverse-link-color;
-    &:hover,
-    &:focus {
-      color: @navbar-inverse-link-hover-color;
-    }
-    &[disabled],
-    fieldset[disabled] & {
-      &:hover,
-      &:focus {
-        color: @navbar-inverse-link-disabled-color;
-      }
-    }
-  }
-}
diff --git a/css/bootstrap/navs.less b/css/bootstrap/navs.less
deleted file mode 100644
index a3d11b1..0000000
--- a/css/bootstrap/navs.less
+++ /dev/null
@@ -1,242 +0,0 @@
-//
-// Navs
-// --------------------------------------------------
-
-
-// Base class
-// --------------------------------------------------
-
-.nav {
-  margin-bottom: 0;
-  padding-left: 0; // Override default ul/ol
-  list-style: none;
-  &:extend(.clearfix all);
-
-  > li {
-    position: relative;
-    display: block;
-
-    > a {
-      position: relative;
-      display: block;
-      padding: @nav-link-padding;
-      &:hover,
-      &:focus {
-        text-decoration: none;
-        background-color: @nav-link-hover-bg;
-      }
-    }
-
-    // Disabled state sets text to gray and nukes hover/tab effects
-    &.disabled > a {
-      color: @nav-disabled-link-color;
-
-      &:hover,
-      &:focus {
-        color: @nav-disabled-link-hover-color;
-        text-decoration: none;
-        background-color: transparent;
-        cursor: @cursor-disabled;
-      }
-    }
-  }
-
-  // Open dropdowns
-  .open > a {
-    &,
-    &:hover,
-    &:focus {
-      background-color: @nav-link-hover-bg;
-      border-color: @link-color;
-    }
-  }
-
-  // Nav dividers (deprecated with v3.0.1)
-  //
-  // This should have been removed in v3 with the dropping of `.nav-list`, but
-  // we missed it. We don't currently support this anywhere, but in the interest
-  // of maintaining backward compatibility in case you use it, it's deprecated.
-  .nav-divider {
-    .nav-divider();
-  }
-
-  // Prevent IE8 from misplacing imgs
-  //
-  // See https://github.com/h5bp/html5-boilerplate/issues/984#issuecomment-3985989
-  > li > a > img {
-    max-width: none;
-  }
-}
-
-
-// Tabs
-// -------------------------
-
-// Give the tabs something to sit on
-.nav-tabs {
-  border-bottom: 1px solid @nav-tabs-border-color;
-  > li {
-    float: left;
-    // Make the list-items overlay the bottom border
-    margin-bottom: -1px;
-
-    // Actual tabs (as links)
-    > a {
-      margin-right: 2px;
-      line-height: @line-height-base;
-      border: 1px solid transparent;
-      border-radius: @border-radius-base @border-radius-base 0 0;
-      &:hover {
-        border-color: @nav-tabs-link-hover-border-color @nav-tabs-link-hover-border-color @nav-tabs-border-color;
-      }
-    }
-
-    // Active state, and its :hover to override normal :hover
-    &.active > a {
-      &,
-      &:hover,
-      &:focus {
-        color: @nav-tabs-active-link-hover-color;
-        background-color: @nav-tabs-active-link-hover-bg;
-        border: 1px solid @nav-tabs-active-link-hover-border-color;
-        border-bottom-color: transparent;
-        cursor: default;
-      }
-    }
-  }
-  // pulling this in mainly for less shorthand
-  &.nav-justified {
-    .nav-justified();
-    .nav-tabs-justified();
-  }
-}
-
-
-// Pills
-// -------------------------
-.nav-pills {
-  > li {
-    float: left;
-
-    // Links rendered as pills
-    > a {
-      border-radius: @nav-pills-border-radius;
-    }
-    + li {
-      margin-left: 2px;
-    }
-
-    // Active state
-    &.active > a {
-      &,
-      &:hover,
-      &:focus {
-        color: @nav-pills-active-link-hover-color;
-        background-color: @nav-pills-active-link-hover-bg;
-      }
-    }
-  }
-}
-
-
-// Stacked pills
-.nav-stacked {
-  > li {
-    float: none;
-    + li {
-      margin-top: 2px;
-      margin-left: 0; // no need for this gap between nav items
-    }
-  }
-}
-
-
-// Nav variations
-// --------------------------------------------------
-
-// Justified nav links
-// -------------------------
-
-.nav-justified {
-  width: 100%;
-
-  > li {
-    float: none;
-    > a {
-      text-align: center;
-      margin-bottom: 5px;
-    }
-  }
-
-  > .dropdown .dropdown-menu {
-    top: auto;
-    left: auto;
-  }
-
-  @media (min-width: @screen-sm-min) {
-    > li {
-      display: table-cell;
-      width: 1%;
-      > a {
-        margin-bottom: 0;
-      }
-    }
-  }
-}
-
-// Move borders to anchors instead of bottom of list
-//
-// Mixin for adding on top the shared `.nav-justified` styles for our tabs
-.nav-tabs-justified {
-  border-bottom: 0;
-
-  > li > a {
-    // Override margin from .nav-tabs
-    margin-right: 0;
-    border-radius: @border-radius-base;
-  }
-
-  > .active > a,
-  > .active > a:hover,
-  > .active > a:focus {
-    border: 1px solid @nav-tabs-justified-link-border-color;
-  }
-
-  @media (min-width: @screen-sm-min) {
-    > li > a {
-      border-bottom: 1px solid @nav-tabs-justified-link-border-color;
-      border-radius: @border-radius-base @border-radius-base 0 0;
-    }
-    > .active > a,
-    > .active > a:hover,
-    > .active > a:focus {
-      border-bottom-color: @nav-tabs-justified-active-link-border-color;
-    }
-  }
-}
-
-
-// Tabbable tabs
-// -------------------------
-
-// Hide tabbable panes to start, show them when `.active`
-.tab-content {
-  > .tab-pane {
-    display: none;
-  }
-  > .active {
-    display: block;
-  }
-}
-
-
-// Dropdowns
-// -------------------------
-
-// Specific dropdowns
-.nav-tabs .dropdown-menu {
-  // make dropdown border overlap tab border
-  margin-top: -1px;
-  // Remove the top rounded corners here since there is a hard edge above the menu
-  .border-top-radius(0);
-}
diff --git a/css/bootstrap/normalize.less b/css/bootstrap/normalize.less
deleted file mode 100644
index 9dddf73..0000000
--- a/css/bootstrap/normalize.less
+++ /dev/null
@@ -1,424 +0,0 @@
-/*! normalize.css v3.0.3 | MIT License | github.com/necolas/normalize.css */
-
-//
-// 1. Set default font family to sans-serif.
-// 2. Prevent iOS and IE text size adjust after device orientation change,
-//    without disabling user zoom.
-//
-
-html {
-  font-family: sans-serif; // 1
-  -ms-text-size-adjust: 100%; // 2
-  -webkit-text-size-adjust: 100%; // 2
-}
-
-//
-// Remove default margin.
-//
-
-body {
-  margin: 0;
-}
-
-// HTML5 display definitions
-// ==========================================================================
-
-//
-// Correct `block` display not defined for any HTML5 element in IE 8/9.
-// Correct `block` display not defined for `details` or `summary` in IE 10/11
-// and Firefox.
-// Correct `block` display not defined for `main` in IE 11.
-//
-
-article,
-aside,
-details,
-figcaption,
-figure,
-footer,
-header,
-hgroup,
-main,
-menu,
-nav,
-section,
-summary {
-  display: block;
-}
-
-//
-// 1. Correct `inline-block` display not defined in IE 8/9.
-// 2. Normalize vertical alignment of `progress` in Chrome, Firefox, and Opera.
-//
-
-audio,
-canvas,
-progress,
-video {
-  display: inline-block; // 1
-  vertical-align: baseline; // 2
-}
-
-//
-// Prevent modern browsers from displaying `audio` without controls.
-// Remove excess height in iOS 5 devices.
-//
-
-audio:not([controls]) {
-  display: none;
-  height: 0;
-}
-
-//
-// Address `[hidden]` styling not present in IE 8/9/10.
-// Hide the `template` element in IE 8/9/10/11, Safari, and Firefox < 22.
-//
-
-[hidden],
-template {
-  display: none;
-}
-
-// Links
-// ==========================================================================
-
-//
-// Remove the gray background color from active links in IE 10.
-//
-
-a {
-  background-color: transparent;
-}
-
-//
-// Improve readability of focused elements when they are also in an
-// active/hover state.
-//
-
-a:active,
-a:hover {
-  outline: 0;
-}
-
-// Text-level semantics
-// ==========================================================================
-
-//
-// Address styling not present in IE 8/9/10/11, Safari, and Chrome.
-//
-
-abbr[title] {
-  border-bottom: 1px dotted;
-}
-
-//
-// Address style set to `bolder` in Firefox 4+, Safari, and Chrome.
-//
-
-b,
-strong {
-  font-weight: bold;
-}
-
-//
-// Address styling not present in Safari and Chrome.
-//
-
-dfn {
-  font-style: italic;
-}
-
-//
-// Address variable `h1` font-size and margin within `section` and `article`
-// contexts in Firefox 4+, Safari, and Chrome.
-//
-
-h1 {
-  font-size: 2em;
-  margin: 0.67em 0;
-}
-
-//
-// Address styling not present in IE 8/9.
-//
-
-mark {
-  background: #ff0;
-  color: #000;
-}
-
-//
-// Address inconsistent and variable font size in all browsers.
-//
-
-small {
-  font-size: 80%;
-}
-
-//
-// Prevent `sub` and `sup` affecting `line-height` in all browsers.
-//
-
-sub,
-sup {
-  font-size: 75%;
-  line-height: 0;
-  position: relative;
-  vertical-align: baseline;
-}
-
-sup {
-  top: -0.5em;
-}
-
-sub {
-  bottom: -0.25em;
-}
-
-// Embedded content
-// ==========================================================================
-
-//
-// Remove border when inside `a` element in IE 8/9/10.
-//
-
-img {
-  border: 0;
-}
-
-//
-// Correct overflow not hidden in IE 9/10/11.
-//
-
-svg:not(:root) {
-  overflow: hidden;
-}
-
-// Grouping content
-// ==========================================================================
-
-//
-// Address margin not present in IE 8/9 and Safari.
-//
-
-figure {
-  margin: 1em 40px;
-}
-
-//
-// Address differences between Firefox and other browsers.
-//
-
-hr {
-  box-sizing: content-box;
-  height: 0;
-}
-
-//
-// Contain overflow in all browsers.
-//
-
-pre {
-  overflow: auto;
-}
-
-//
-// Address odd `em`-unit font size rendering in all browsers.
-//
-
-code,
-kbd,
-pre,
-samp {
-  font-family: monospace, monospace;
-  font-size: 1em;
-}
-
-// Forms
-// ==========================================================================
-
-//
-// Known limitation: by default, Chrome and Safari on OS X allow very limited
-// styling of `select`, unless a `border` property is set.
-//
-
-//
-// 1. Correct color not being inherited.
-//    Known issue: affects color of disabled elements.
-// 2. Correct font properties not being inherited.
-// 3. Address margins set differently in Firefox 4+, Safari, and Chrome.
-//
-
-button,
-input,
-optgroup,
-select,
-textarea {
-  color: inherit; // 1
-  font: inherit; // 2
-  margin: 0; // 3
-}
-
-//
-// Address `overflow` set to `hidden` in IE 8/9/10/11.
-//
-
-button {
-  overflow: visible;
-}
-
-//
-// Address inconsistent `text-transform` inheritance for `button` and `select`.
-// All other form control elements do not inherit `text-transform` values.
-// Correct `button` style inheritance in Firefox, IE 8/9/10/11, and Opera.
-// Correct `select` style inheritance in Firefox.
-//
-
-button,
-select {
-  text-transform: none;
-}
-
-//
-// 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
-//    and `video` controls.
-// 2. Correct inability to style clickable `input` types in iOS.
-// 3. Improve usability and consistency of cursor style between image-type
-//    `input` and others.
-//
-
-button,
-html input[type="button"], // 1
-input[type="reset"],
-input[type="submit"] {
-  -webkit-appearance: button; // 2
-  cursor: pointer; // 3
-}
-
-//
-// Re-set default cursor for disabled elements.
-//
-
-button[disabled],
-html input[disabled] {
-  cursor: default;
-}
-
-//
-// Remove inner padding and border in Firefox 4+.
-//
-
-button::-moz-focus-inner,
-input::-moz-focus-inner {
-  border: 0;
-  padding: 0;
-}
-
-//
-// Address Firefox 4+ setting `line-height` on `input` using `!important` in
-// the UA stylesheet.
-//
-
-input {
-  line-height: normal;
-}
-
-//
-// It's recommended that you don't attempt to style these elements.
-// Firefox's implementation doesn't respect box-sizing, padding, or width.
-//
-// 1. Address box sizing set to `content-box` in IE 8/9/10.
-// 2. Remove excess padding in IE 8/9/10.
-//
-
-input[type="checkbox"],
-input[type="radio"] {
-  box-sizing: border-box; // 1
-  padding: 0; // 2
-}
-
-//
-// Fix the cursor style for Chrome's increment/decrement buttons. For certain
-// `font-size` values of the `input`, it causes the cursor style of the
-// decrement button to change from `default` to `text`.
-//
-
-input[type="number"]::-webkit-inner-spin-button,
-input[type="number"]::-webkit-outer-spin-button {
-  height: auto;
-}
-
-//
-// 1. Address `appearance` set to `searchfield` in Safari and Chrome.
-// 2. Address `box-sizing` set to `border-box` in Safari and Chrome.
-//
-
-input[type="search"] {
-  -webkit-appearance: textfield; // 1
-  box-sizing: content-box; //2
-}
-
-//
-// Remove inner padding and search cancel button in Safari and Chrome on OS X.
-// Safari (but not Chrome) clips the cancel button when the search input has
-// padding (and `textfield` appearance).
-//
-
-input[type="search"]::-webkit-search-cancel-button,
-input[type="search"]::-webkit-search-decoration {
-  -webkit-appearance: none;
-}
-
-//
-// Define consistent border, margin, and padding.
-//
-
-fieldset {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em;
-}
-
-//
-// 1. Correct `color` not being inherited in IE 8/9/10/11.
-// 2. Remove padding so people aren't caught out if they zero out fieldsets.
-//
-
-legend {
-  border: 0; // 1
-  padding: 0; // 2
-}
-
-//
-// Remove default vertical scrollbar in IE 8/9/10/11.
-//
-
-textarea {
-  overflow: auto;
-}
-
-//
-// Don't inherit the `font-weight` (applied by a rule above).
-// NOTE: the default cannot safely be changed in Chrome and Safari on OS X.
-//
-
-optgroup {
-  font-weight: bold;
-}
-
-// Tables
-// ==========================================================================
-
-//
-// Remove most spacing between table cells.
-//
-
-table {
-  border-collapse: collapse;
-  border-spacing: 0;
-}
-
-td,
-th {
-  padding: 0;
-}
diff --git a/css/bootstrap/pager.less b/css/bootstrap/pager.less
deleted file mode 100644
index 41abaaa..0000000
--- a/css/bootstrap/pager.less
+++ /dev/null
@@ -1,54 +0,0 @@
-//
-// Pager pagination
-// --------------------------------------------------
-
-
-.pager {
-  padding-left: 0;
-  margin: @line-height-computed 0;
-  list-style: none;
-  text-align: center;
-  &:extend(.clearfix all);
-  li {
-    display: inline;
-    > a,
-    > span {
-      display: inline-block;
-      padding: 5px 14px;
-      background-color: @pager-bg;
-      border: 1px solid @pager-border;
-      border-radius: @pager-border-radius;
-    }
-
-    > a:hover,
-    > a:focus {
-      text-decoration: none;
-      background-color: @pager-hover-bg;
-    }
-  }
-
-  .next {
-    > a,
-    > span {
-      float: right;
-    }
-  }
-
-  .previous {
-    > a,
-    > span {
-      float: left;
-    }
-  }
-
-  .disabled {
-    > a,
-    > a:hover,
-    > a:focus,
-    > span {
-      color: @pager-disabled-color;
-      background-color: @pager-bg;
-      cursor: @cursor-disabled;
-    }
-  }
-}
diff --git a/css/bootstrap/pagination.less b/css/bootstrap/pagination.less
deleted file mode 100644
index 31f77aa..0000000
--- a/css/bootstrap/pagination.less
+++ /dev/null
@@ -1,89 +0,0 @@
-//
-// Pagination (multiple pages)
-// --------------------------------------------------
-.pagination {
-  display: inline-block;
-  padding-left: 0;
-  margin: @line-height-computed 0;
-  border-radius: @border-radius-base;
-
-  > li {
-    display: inline; // Remove list-style and block-level defaults
-    > a,
-    > span {
-      position: relative;
-      float: left; // Collapse white-space
-      padding: @padding-base-vertical @padding-base-horizontal;
-      line-height: @line-height-base;
-      text-decoration: none;
-      color: @pagination-color;
-      background-color: @pagination-bg;
-      border: 1px solid @pagination-border;
-      margin-left: -1px;
-    }
-    &:first-child {
-      > a,
-      > span {
-        margin-left: 0;
-        .border-left-radius(@border-radius-base);
-      }
-    }
-    &:last-child {
-      > a,
-      > span {
-        .border-right-radius(@border-radius-base);
-      }
-    }
-  }
-
-  > li > a,
-  > li > span {
-    &:hover,
-    &:focus {
-      z-index: 2;
-      color: @pagination-hover-color;
-      background-color: @pagination-hover-bg;
-      border-color: @pagination-hover-border;
-    }
-  }
-
-  > .active > a,
-  > .active > span {
-    &,
-    &:hover,
-    &:focus {
-      z-index: 3;
-      color: @pagination-active-color;
-      background-color: @pagination-active-bg;
-      border-color: @pagination-active-border;
-      cursor: default;
-    }
-  }
-
-  > .disabled {
-    > span,
-    > span:hover,
-    > span:focus,
-    > a,
-    > a:hover,
-    > a:focus {
-      color: @pagination-disabled-color;
-      background-color: @pagination-disabled-bg;
-      border-color: @pagination-disabled-border;
-      cursor: @cursor-disabled;
-    }
-  }
-}
-
-// Sizing
-// --------------------------------------------------
-
-// Large
-.pagination-lg {
-  .pagination-size(@padding-large-vertical; @padding-large-horizontal; @font-size-large; @line-height-large; @border-radius-large);
-}
-
-// Small
-.pagination-sm {
-  .pagination-size(@padding-small-vertical; @padding-small-horizontal; @font-size-small; @line-height-small; @border-radius-small);
-}
diff --git a/css/bootstrap/panels.less b/css/bootstrap/panels.less
deleted file mode 100644
index 65aa3a8..0000000
--- a/css/bootstrap/panels.less
+++ /dev/null
@@ -1,271 +0,0 @@
-//
-// Panels
-// --------------------------------------------------
-
-
-// Base class
-.panel {
-  margin-bottom: @line-height-computed;
-  background-color: @panel-bg;
-  border: 1px solid transparent;
-  border-radius: @panel-border-radius;
-  .box-shadow(0 1px 1px rgba(0,0,0,.05));
-}
-
-// Panel contents
-.panel-body {
-  padding: @panel-body-padding;
-  &:extend(.clearfix all);
-}
-
-// Optional heading
-.panel-heading {
-  padding: @panel-heading-padding;
-  border-bottom: 1px solid transparent;
-  .border-top-radius((@panel-border-radius - 1));
-
-  > .dropdown .dropdown-toggle {
-    color: inherit;
-  }
-}
-
-// Within heading, strip any `h*` tag of its default margins for spacing.
-.panel-title {
-  margin-top: 0;
-  margin-bottom: 0;
-  font-size: ceil((@font-size-base * 1.125));
-  color: inherit;
-
-  > a,
-  > small,
-  > .small,
-  > small > a,
-  > .small > a {
-    color: inherit;
-  }
-}
-
-// Optional footer (stays gray in every modifier class)
-.panel-footer {
-  padding: @panel-footer-padding;
-  background-color: @panel-footer-bg;
-  border-top: 1px solid @panel-inner-border;
-  .border-bottom-radius((@panel-border-radius - 1));
-}
-
-
-// List groups in panels
-//
-// By default, space out list group content from panel headings to account for
-// any kind of custom content between the two.
-
-.panel {
-  > .list-group,
-  > .panel-collapse > .list-group {
-    margin-bottom: 0;
-
-    .list-group-item {
-      border-width: 1px 0;
-      border-radius: 0;
-    }
-
-    // Add border top radius for first one
-    &:first-child {
-      .list-group-item:first-child {
-        border-top: 0;
-        .border-top-radius((@panel-border-radius - 1));
-      }
-    }
-
-    // Add border bottom radius for last one
-    &:last-child {
-      .list-group-item:last-child {
-        border-bottom: 0;
-        .border-bottom-radius((@panel-border-radius - 1));
-      }
-    }
-  }
-  > .panel-heading + .panel-collapse > .list-group {
-    .list-group-item:first-child {
-      .border-top-radius(0);
-    }
-  }
-}
-// Collapse space between when there's no additional content.
-.panel-heading + .list-group {
-  .list-group-item:first-child {
-    border-top-width: 0;
-  }
-}
-.list-group + .panel-footer {
-  border-top-width: 0;
-}
-
-// Tables in panels
-//
-// Place a non-bordered `.table` within a panel (not within a `.panel-body`) and
-// watch it go full width.
-
-.panel {
-  > .table,
-  > .table-responsive > .table,
-  > .panel-collapse > .table {
-    margin-bottom: 0;
-
-    caption {
-      padding-left: @panel-body-padding;
-      padding-right: @panel-body-padding;
-    }
-  }
-  // Add border top radius for first one
-  > .table:first-child,
-  > .table-responsive:first-child > .table:first-child {
-    .border-top-radius((@panel-border-radius - 1));
-
-    > thead:first-child,
-    > tbody:first-child {
-      > tr:first-child {
-        border-top-left-radius: (@panel-border-radius - 1);
-        border-top-right-radius: (@panel-border-radius - 1);
-
-        td:first-child,
-        th:first-child {
-          border-top-left-radius: (@panel-border-radius - 1);
-        }
-        td:last-child,
-        th:last-child {
-          border-top-right-radius: (@panel-border-radius - 1);
-        }
-      }
-    }
-  }
-  // Add border bottom radius for last one
-  > .table:last-child,
-  > .table-responsive:last-child > .table:last-child {
-    .border-bottom-radius((@panel-border-radius - 1));
-
-    > tbody:last-child,
-    > tfoot:last-child {
-      > tr:last-child {
-        border-bottom-left-radius: (@panel-border-radius - 1);
-        border-bottom-right-radius: (@panel-border-radius - 1);
-
-        td:first-child,
-        th:first-child {
-          border-bottom-left-radius: (@panel-border-radius - 1);
-        }
-        td:last-child,
-        th:last-child {
-          border-bottom-right-radius: (@panel-border-radius - 1);
-        }
-      }
-    }
-  }
-  > .panel-body + .table,
-  > .panel-body + .table-responsive,
-  > .table + .panel-body,
-  > .table-responsive + .panel-body {
-    border-top: 1px solid @table-border-color;
-  }
-  > .table > tbody:first-child > tr:first-child th,
-  > .table > tbody:first-child > tr:first-child td {
-    border-top: 0;
-  }
-  > .table-bordered,
-  > .table-responsive > .table-bordered {
-    border: 0;
-    > thead,
-    > tbody,
-    > tfoot {
-      > tr {
-        > th:first-child,
-        > td:first-child {
-          border-left: 0;
-        }
-        > th:last-child,
-        > td:last-child {
-          border-right: 0;
-        }
-      }
-    }
-    > thead,
-    > tbody {
-      > tr:first-child {
-        > td,
-        > th {
-          border-bottom: 0;
-        }
-      }
-    }
-    > tbody,
-    > tfoot {
-      > tr:last-child {
-        > td,
-        > th {
-          border-bottom: 0;
-        }
-      }
-    }
-  }
-  > .table-responsive {
-    border: 0;
-    margin-bottom: 0;
-  }
-}
-
-
-// Collapsible panels (aka, accordion)
-//
-// Wrap a series of panels in `.panel-group` to turn them into an accordion with
-// the help of our collapse JavaScript plugin.
-
-.panel-group {
-  margin-bottom: @line-height-computed;
-
-  // Tighten up margin so it's only between panels
-  .panel {
-    margin-bottom: 0;
-    border-radius: @panel-border-radius;
-
-    + .panel {
-      margin-top: 5px;
-    }
-  }
-
-  .panel-heading {
-    border-bottom: 0;
-
-    + .panel-collapse > .panel-body,
-    + .panel-collapse > .list-group {
-      border-top: 1px solid @panel-inner-border;
-    }
-  }
-
-  .panel-footer {
-    border-top: 0;
-    + .panel-collapse .panel-body {
-      border-bottom: 1px solid @panel-inner-border;
-    }
-  }
-}
-
-
-// Contextual variations
-.panel-default {
-  .panel-variant(@panel-default-border; @panel-default-text; @panel-default-heading-bg; @panel-default-border);
-}
-.panel-primary {
-  .panel-variant(@panel-primary-border; @panel-primary-text; @panel-primary-heading-bg; @panel-primary-border);
-}
-.panel-success {
-  .panel-variant(@panel-success-border; @panel-success-text; @panel-success-heading-bg; @panel-success-border);
-}
-.panel-info {
-  .panel-variant(@panel-info-border; @panel-info-text; @panel-info-heading-bg; @panel-info-border);
-}
-.panel-warning {
-  .panel-variant(@panel-warning-border; @panel-warning-text; @panel-warning-heading-bg; @panel-warning-border);
-}
-.panel-danger {
-  .panel-variant(@panel-danger-border; @panel-danger-text; @panel-danger-heading-bg; @panel-danger-border);
-}
diff --git a/css/bootstrap/popovers.less b/css/bootstrap/popovers.less
deleted file mode 100644
index 3a62a64..0000000
--- a/css/bootstrap/popovers.less
+++ /dev/null
@@ -1,131 +0,0 @@
-//
-// Popovers
-// --------------------------------------------------
-
-
-.popover {
-  position: absolute;
-  top: 0;
-  left: 0;
-  z-index: @zindex-popover;
-  display: none;
-  max-width: @popover-max-width;
-  padding: 1px;
-  // Our parent element can be arbitrary since popovers are by default inserted as a sibling of their target element.
-  // So reset our font and text properties to avoid inheriting weird values.
-  .reset-text();
-  font-size: @font-size-base;
-
-  background-color: @popover-bg;
-  background-clip: padding-box;
-  border: 1px solid @popover-fallback-border-color;
-  border: 1px solid @popover-border-color;
-  border-radius: @border-radius-large;
-  .box-shadow(0 5px 10px rgba(0,0,0,.2));
-
-  // Offset the popover to account for the popover arrow
-  &.top     { margin-top: -@popover-arrow-width; }
-  &.right   { margin-left: @popover-arrow-width; }
-  &.bottom  { margin-top: @popover-arrow-width; }
-  &.left    { margin-left: -@popover-arrow-width; }
-}
-
-.popover-title {
-  margin: 0; // reset heading margin
-  padding: 8px 14px;
-  font-size: @font-size-base;
-  background-color: @popover-title-bg;
-  border-bottom: 1px solid darken(@popover-title-bg, 5%);
-  border-radius: (@border-radius-large - 1) (@border-radius-large - 1) 0 0;
-}
-
-.popover-content {
-  padding: 9px 14px;
-}
-
-// Arrows
-//
-// .arrow is outer, .arrow:after is inner
-
-.popover > .arrow {
-  &,
-  &:after {
-    position: absolute;
-    display: block;
-    width: 0;
-    height: 0;
-    border-color: transparent;
-    border-style: solid;
-  }
-}
-.popover > .arrow {
-  border-width: @popover-arrow-outer-width;
-}
-.popover > .arrow:after {
-  border-width: @popover-arrow-width;
-  content: "";
-}
-
-.popover {
-  &.top > .arrow {
-    left: 50%;
-    margin-left: -@popover-arrow-outer-width;
-    border-bottom-width: 0;
-    border-top-color: @popover-arrow-outer-fallback-color; // IE8 fallback
-    border-top-color: @popover-arrow-outer-color;
-    bottom: -@popover-arrow-outer-width;
-    &:after {
-      content: " ";
-      bottom: 1px;
-      margin-left: -@popover-arrow-width;
-      border-bottom-width: 0;
-      border-top-color: @popover-arrow-color;
-    }
-  }
-  &.right > .arrow {
-    top: 50%;
-    left: -@popover-arrow-outer-width;
-    margin-top: -@popover-arrow-outer-width;
-    border-left-width: 0;
-    border-right-color: @popover-arrow-outer-fallback-color; // IE8 fallback
-    border-right-color: @popover-arrow-outer-color;
-    &:after {
-      content: " ";
-      left: 1px;
-      bottom: -@popover-arrow-width;
-      border-left-width: 0;
-      border-right-color: @popover-arrow-color;
-    }
-  }
-  &.bottom > .arrow {
-    left: 50%;
-    margin-left: -@popover-arrow-outer-width;
-    border-top-width: 0;
-    border-bottom-color: @popover-arrow-outer-fallback-color; // IE8 fallback
-    border-bottom-color: @popover-arrow-outer-color;
-    top: -@popover-arrow-outer-width;
-    &:after {
-      content: " ";
-      top: 1px;
-      margin-left: -@popover-arrow-width;
-      border-top-width: 0;
-      border-bottom-color: @popover-arrow-color;
-    }
-  }
-
-  &.left > .arrow {
-    top: 50%;
-    right: -@popover-arrow-outer-width;
-    margin-top: -@popover-arrow-outer-width;
-    border-right-width: 0;
-    border-left-color: @popover-arrow-outer-fallback-color; // IE8 fallback
-    border-left-color: @popover-arrow-outer-color;
-    &:after {
-      content: " ";
-      right: 1px;
-      border-right-width: 0;
-      border-left-color: @popover-arrow-color;
-      bottom: -@popover-arrow-width;
-    }
-  }
-}
diff --git a/css/bootstrap/print.less b/css/bootstrap/print.less
deleted file mode 100644
index 66e54ab..0000000
--- a/css/bootstrap/print.less
+++ /dev/null
@@ -1,101 +0,0 @@
-/*! Source: https://github.com/h5bp/html5-boilerplate/blob/master/src/css/main.css */
-
-// ==========================================================================
-// Print styles.
-// Inlined to avoid the additional HTTP request: h5bp.com/r
-// ==========================================================================
-
-@media print {
-    *,
-    *:before,
-    *:after {
-        background: transparent !important;
-        color: #000 !important; // Black prints faster: h5bp.com/s
-        box-shadow: none !important;
-        text-shadow: none !important;
-    }
-
-    a,
-    a:visited {
-        text-decoration: underline;
-    }
-
-    a[href]:after {
-        content: " (" attr(href) ")";
-    }
-
-    abbr[title]:after {
-        content: " (" attr(title) ")";
-    }
-
-    // Don't show links that are fragment identifiers,
-    // or use the `javascript:` pseudo protocol
-    a[href^="#"]:after,
-    a[href^="javascript:"]:after {
-        content: "";
-    }
-
-    pre,
-    blockquote {
-        border: 1px solid #999;
-        page-break-inside: avoid;
-    }
-
-    thead {
-        display: table-header-group; // h5bp.com/t
-    }
-
-    tr,
-    img {
-        page-break-inside: avoid;
-    }
-
-    img {
-        max-width: 100% !important;
-    }
-
-    p,
-    h2,
-    h3 {
-        orphans: 3;
-        widows: 3;
-    }
-
-    h2,
-    h3 {
-        page-break-after: avoid;
-    }
-
-    // Bootstrap specific changes start
-
-    // Bootstrap components
-    .navbar {
-        display: none;
-    }
-    .btn,
-    .dropup > .btn {
-        > .caret {
-            border-top-color: #000 !important;
-        }
-    }
-    .label {
-        border: 1px solid #000;
-    }
-
-    .table {
-        border-collapse: collapse !important;
-
-        td,
-        th {
-            background-color: #fff !important;
-        }
-    }
-    .table-bordered {
-        th,
-        td {
-            border: 1px solid #ddd !important;
-        }
-    }
-
-    // Bootstrap specific changes end
-}
diff --git a/css/bootstrap/progress-bars.less b/css/bootstrap/progress-bars.less
deleted file mode 100644
index 8868a1f..0000000
--- a/css/bootstrap/progress-bars.less
+++ /dev/null
@@ -1,87 +0,0 @@
-//
-// Progress bars
-// --------------------------------------------------
-
-
-// Bar animations
-// -------------------------
-
-// WebKit
-@-webkit-keyframes progress-bar-stripes {
-  from  { background-position: 40px 0; }
-  to    { background-position: 0 0; }
-}
-
-// Spec and IE10+
-@keyframes progress-bar-stripes {
-  from  { background-position: 40px 0; }
-  to    { background-position: 0 0; }
-}
-
-
-// Bar itself
-// -------------------------
-
-// Outer container
-.progress {
-  overflow: hidden;
-  height: @line-height-computed;
-  margin-bottom: @line-height-computed;
-  background-color: @progress-bg;
-  border-radius: @progress-border-radius;
-  .box-shadow(inset 0 1px 2px rgba(0,0,0,.1));
-}
-
-// Bar of progress
-.progress-bar {
-  float: left;
-  width: 0%;
-  height: 100%;
-  font-size: @font-size-small;
-  line-height: @line-height-computed;
-  color: @progress-bar-color;
-  text-align: center;
-  background-color: @progress-bar-bg;
-  .box-shadow(inset 0 -1px 0 rgba(0,0,0,.15));
-  .transition(width .6s ease);
-}
-
-// Striped bars
-//
-// `.progress-striped .progress-bar` is deprecated as of v3.2.0 in favor of the
-// `.progress-bar-striped` class, which you just add to an existing
-// `.progress-bar`.
-.progress-striped .progress-bar,
-.progress-bar-striped {
-  #gradient > .striped();
-  background-size: 40px 40px;
-}
-
-// Call animation for the active one
-//
-// `.progress.active .progress-bar` is deprecated as of v3.2.0 in favor of the
-// `.progress-bar.active` approach.
-.progress.active .progress-bar,
-.progress-bar.active {
-  .animation(progress-bar-stripes 2s linear infinite);
-}
-
-
-// Variations
-// -------------------------
-
-.progress-bar-success {
-  .progress-bar-variant(@progress-bar-success-bg);
-}
-
-.progress-bar-info {
-  .progress-bar-variant(@progress-bar-info-bg);
-}
-
-.progress-bar-warning {
-  .progress-bar-variant(@progress-bar-warning-bg);
-}
-
-.progress-bar-danger {
-  .progress-bar-variant(@progress-bar-danger-bg);
-}
diff --git a/css/bootstrap/responsive-embed.less b/css/bootstrap/responsive-embed.less
deleted file mode 100644
index 080a511..0000000
--- a/css/bootstrap/responsive-embed.less
+++ /dev/null
@@ -1,35 +0,0 @@
-// Embeds responsive
-//
-// Credit: Nicolas Gallagher and SUIT CSS.
-
-.embed-responsive {
-  position: relative;
-  display: block;
-  height: 0;
-  padding: 0;
-  overflow: hidden;
-
-  .embed-responsive-item,
-  iframe,
-  embed,
-  object,
-  video {
-    position: absolute;
-    top: 0;
-    left: 0;
-    bottom: 0;
-    height: 100%;
-    width: 100%;
-    border: 0;
-  }
-}
-
-// Modifier class for 16:9 aspect ratio
-.embed-responsive-16by9 {
-  padding-bottom: 56.25%;
-}
-
-// Modifier class for 4:3 aspect ratio
-.embed-responsive-4by3 {
-  padding-bottom: 75%;
-}
diff --git a/css/bootstrap/responsive-utilities.less b/css/bootstrap/responsive-utilities.less
deleted file mode 100644
index b1db31d..0000000
--- a/css/bootstrap/responsive-utilities.less
+++ /dev/null
@@ -1,194 +0,0 @@
-//
-// Responsive: Utility classes
-// --------------------------------------------------
-
-
-// IE10 in Windows (Phone) 8
-//
-// Support for responsive views via media queries is kind of borked in IE10, for
-// Surface/desktop in split view and for Windows Phone 8. This particular fix
-// must be accompanied by a snippet of JavaScript to sniff the user agent and
-// apply some conditional CSS to *only* the Surface/desktop Windows 8. Look at
-// our Getting Started page for more information on this bug.
-//
-// For more information, see the following:
-//
-// Issue: https://github.com/twbs/bootstrap/issues/10497
-// Docs: http://getbootstrap.com/getting-started/#support-ie10-width
-// Source: http://timkadlec.com/2013/01/windows-phone-8-and-device-width/
-// Source: http://timkadlec.com/2012/10/ie10-snap-mode-and-responsive-design/
-
-@-ms-viewport {
-  width: device-width;
-}
-
-
-// Visibility utilities
-// Note: Deprecated .visible-xs, .visible-sm, .visible-md, and .visible-lg as of v3.2.0
-.visible-xs,
-.visible-sm,
-.visible-md,
-.visible-lg {
-  .responsive-invisibility();
-}
-
-.visible-xs-block,
-.visible-xs-inline,
-.visible-xs-inline-block,
-.visible-sm-block,
-.visible-sm-inline,
-.visible-sm-inline-block,
-.visible-md-block,
-.visible-md-inline,
-.visible-md-inline-block,
-.visible-lg-block,
-.visible-lg-inline,
-.visible-lg-inline-block {
-  display: none !important;
-}
-
-.visible-xs {
-  @media (max-width: @screen-xs-max) {
-    .responsive-visibility();
-  }
-}
-.visible-xs-block {
-  @media (max-width: @screen-xs-max) {
-    display: block !important;
-  }
-}
-.visible-xs-inline {
-  @media (max-width: @screen-xs-max) {
-    display: inline !important;
-  }
-}
-.visible-xs-inline-block {
-  @media (max-width: @screen-xs-max) {
-    display: inline-block !important;
-  }
-}
-
-.visible-sm {
-  @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
-    .responsive-visibility();
-  }
-}
-.visible-sm-block {
-  @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
-    display: block !important;
-  }
-}
-.visible-sm-inline {
-  @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
-    display: inline !important;
-  }
-}
-.visible-sm-inline-block {
-  @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
-    display: inline-block !important;
-  }
-}
-
-.visible-md {
-  @media (min-width: @screen-md-min) and (max-width: @screen-md-max) {
-    .responsive-visibility();
-  }
-}
-.visible-md-block {
-  @media (min-width: @screen-md-min) and (max-width: @screen-md-max) {
-    display: block !important;
-  }
-}
-.visible-md-inline {
-  @media (min-width: @screen-md-min) and (max-width: @screen-md-max) {
-    display: inline !important;
-  }
-}
-.visible-md-inline-block {
-  @media (min-width: @screen-md-min) and (max-width: @screen-md-max) {
-    display: inline-block !important;
-  }
-}
-
-.visible-lg {
-  @media (min-width: @screen-lg-min) {
-    .responsive-visibility();
-  }
-}
-.visible-lg-block {
-  @media (min-width: @screen-lg-min) {
-    display: block !important;
-  }
-}
-.visible-lg-inline {
-  @media (min-width: @screen-lg-min) {
-    display: inline !important;
-  }
-}
-.visible-lg-inline-block {
-  @media (min-width: @screen-lg-min) {
-    display: inline-block !important;
-  }
-}
-
-.hidden-xs {
-  @media (max-width: @screen-xs-max) {
-    .responsive-invisibility();
-  }
-}
-.hidden-sm {
-  @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
-    .responsive-invisibility();
-  }
-}
-.hidden-md {
-  @media (min-width: @screen-md-min) and (max-width: @screen-md-max) {
-    .responsive-invisibility();
-  }
-}
-.hidden-lg {
-  @media (min-width: @screen-lg-min) {
-    .responsive-invisibility();
-  }
-}
-
-
-// Print utilities
-//
-// Media queries are placed on the inside to be mixin-friendly.
-
-// Note: Deprecated .visible-print as of v3.2.0
-.visible-print {
-  .responsive-invisibility();
-
-  @media print {
-    .responsive-visibility();
-  }
-}
-.visible-print-block {
-  display: none !important;
-
-  @media print {
-    display: block !important;
-  }
-}
-.visible-print-inline {
-  display: none !important;
-
-  @media print {
-    display: inline !important;
-  }
-}
-.visible-print-inline-block {
-  display: none !important;
-
-  @media print {
-    display: inline-block !important;
-  }
-}
-
-.hidden-print {
-  @media print {
-    .responsive-invisibility();
-  }
-}
diff --git a/css/bootstrap/scaffolding.less b/css/bootstrap/scaffolding.less
deleted file mode 100644
index 64a29c6..0000000
--- a/css/bootstrap/scaffolding.less
+++ /dev/null
@@ -1,161 +0,0 @@
-//
-// Scaffolding
-// --------------------------------------------------
-
-
-// Reset the box-sizing
-//
-// Heads up! This reset may cause conflicts with some third-party widgets.
-// For recommendations on resolving such conflicts, see
-// http://getbootstrap.com/getting-started/#third-box-sizing
-* {
-  .box-sizing(border-box);
-}
-*:before,
-*:after {
-  .box-sizing(border-box);
-}
-
-
-// Body reset
-
-html {
-  font-size: 10px;
-  -webkit-tap-highlight-color: rgba(0,0,0,0);
-}
-
-body {
-  font-family: @font-family-base;
-  font-size: @font-size-base;
-  line-height: @line-height-base;
-  color: @text-color;
-  background-color: @body-bg;
-}
-
-// Reset fonts for relevant elements
-input,
-button,
-select,
-textarea {
-  font-family: inherit;
-  font-size: inherit;
-  line-height: inherit;
-}
-
-
-// Links
-
-a {
-  color: @link-color;
-  text-decoration: none;
-
-  &:hover,
-  &:focus {
-    color: @link-hover-color;
-    text-decoration: @link-hover-decoration;
-  }
-
-  &:focus {
-    .tab-focus();
-  }
-}
-
-
-// Figures
-//
-// We reset this here because previously Normalize had no `figure` margins. This
-// ensures we don't break anyone's use of the element.
-
-figure {
-  margin: 0;
-}
-
-
-// Images
-
-img {
-  vertical-align: middle;
-}
-
-// Responsive images (ensure images don't scale beyond their parents)
-.img-responsive {
-  .img-responsive();
-}
-
-// Rounded corners
-.img-rounded {
-  border-radius: @border-radius-large;
-}
-
-// Image thumbnails
-//
-// Heads up! This is mixin-ed into thumbnails.less for `.thumbnail`.
-.img-thumbnail {
-  padding: @thumbnail-padding;
-  line-height: @line-height-base;
-  background-color: @thumbnail-bg;
-  border: 1px solid @thumbnail-border;
-  border-radius: @thumbnail-border-radius;
-  .transition(all .2s ease-in-out);
-
-  // Keep them at most 100% wide
-  .img-responsive(inline-block);
-}
-
-// Perfect circle
-.img-circle {
-  border-radius: 50%; // set radius in percents
-}
-
-
-// Horizontal rules
-
-hr {
-  margin-top:    @line-height-computed;
-  margin-bottom: @line-height-computed;
-  border: 0;
-  border-top: 1px solid @hr-border;
-}
-
-
-// Only display content to screen readers
-//
-// See: http://a11yproject.com/posts/how-to-hide-content
-
-.sr-only {
-  position: absolute;
-  width: 1px;
-  height: 1px;
-  margin: -1px;
-  padding: 0;
-  overflow: hidden;
-  clip: rect(0,0,0,0);
-  border: 0;
-}
-
-// Use in conjunction with .sr-only to only display content when it's focused.
-// Useful for "Skip to main content" links; see http://www.w3.org/TR/2013/NOTE-WCAG20-TECHS-20130905/G1
-// Credit: HTML5 Boilerplate
-
-.sr-only-focusable {
-  &:active,
-  &:focus {
-    position: static;
-    width: auto;
-    height: auto;
-    margin: 0;
-    overflow: visible;
-    clip: auto;
-  }
-}
-
-
-// iOS "clickable elements" fix for role="button"
-//
-// Fixes "clickability" issue (and more generally, the firing of events such as focus as well)
-// for traditionally non-focusable elements with role="button"
-// see https://developer.mozilla.org/en-US/docs/Web/Events/click#Safari_Mobile
-
-[role="button"] {
-  cursor: pointer;
-}
diff --git a/css/bootstrap/tables.less b/css/bootstrap/tables.less
deleted file mode 100644
index 2242c03..0000000
--- a/css/bootstrap/tables.less
+++ /dev/null
@@ -1,234 +0,0 @@
-//
-// Tables
-// --------------------------------------------------
-
-
-table {
-  background-color: @table-bg;
-}
-caption {
-  padding-top: @table-cell-padding;
-  padding-bottom: @table-cell-padding;
-  color: @text-muted;
-  text-align: left;
-}
-th {
-  text-align: left;
-}
-
-
-// Baseline styles
-
-.table {
-  width: 100%;
-  max-width: 100%;
-  margin-bottom: @line-height-computed;
-  // Cells
-  > thead,
-  > tbody,
-  > tfoot {
-    > tr {
-      > th,
-      > td {
-        padding: @table-cell-padding;
-        line-height: @line-height-base;
-        vertical-align: top;
-        border-top: 1px solid @table-border-color;
-      }
-    }
-  }
-  // Bottom align for column headings
-  > thead > tr > th {
-    vertical-align: bottom;
-    border-bottom: 2px solid @table-border-color;
-  }
-  // Remove top border from thead by default
-  > caption + thead,
-  > colgroup + thead,
-  > thead:first-child {
-    > tr:first-child {
-      > th,
-      > td {
-        border-top: 0;
-      }
-    }
-  }
-  // Account for multiple tbody instances
-  > tbody + tbody {
-    border-top: 2px solid @table-border-color;
-  }
-
-  // Nesting
-  .table {
-    background-color: @body-bg;
-  }
-}
-
-
-// Condensed table w/ half padding
-
-.table-condensed {
-  > thead,
-  > tbody,
-  > tfoot {
-    > tr {
-      > th,
-      > td {
-        padding: @table-condensed-cell-padding;
-      }
-    }
-  }
-}
-
-
-// Bordered version
-//
-// Add borders all around the table and between all the columns.
-
-.table-bordered {
-  border: 1px solid @table-border-color;
-  > thead,
-  > tbody,
-  > tfoot {
-    > tr {
-      > th,
-      > td {
-        border: 1px solid @table-border-color;
-      }
-    }
-  }
-  > thead > tr {
-    > th,
-    > td {
-      border-bottom-width: 2px;
-    }
-  }
-}
-
-
-// Zebra-striping
-//
-// Default zebra-stripe styles (alternating gray and transparent backgrounds)
-
-.table-striped {
-  > tbody > tr:nth-of-type(odd) {
-    background-color: @table-bg-accent;
-  }
-}
-
-
-// Hover effect
-//
-// Placed here since it has to come after the potential zebra striping
-
-.table-hover {
-  > tbody > tr:hover {
-    background-color: @table-bg-hover;
-  }
-}
-
-
-// Table cell sizing
-//
-// Reset default table behavior
-
-table col[class*="col-"] {
-  position: static; // Prevent border hiding in Firefox and IE9-11 (see https://github.com/twbs/bootstrap/issues/11623)
-  float: none;
-  display: table-column;
-}
-table {
-  td,
-  th {
-    &[class*="col-"] {
-      position: static; // Prevent border hiding in Firefox and IE9-11 (see https://github.com/twbs/bootstrap/issues/11623)
-      float: none;
-      display: table-cell;
-    }
-  }
-}
-
-
-// Table backgrounds
-//
-// Exact selectors below required to override `.table-striped` and prevent
-// inheritance to nested tables.
-
-// Generate the contextual variants
-.table-row-variant(active; @table-bg-active);
-.table-row-variant(success; @state-success-bg);
-.table-row-variant(info; @state-info-bg);
-.table-row-variant(warning; @state-warning-bg);
-.table-row-variant(danger; @state-danger-bg);
-
-
-// Responsive tables
-//
-// Wrap your tables in `.table-responsive` and we'll make them mobile friendly
-// by enabling horizontal scrolling. Only applies <768px. Everything above that
-// will display normally.
-
-.table-responsive {
-  overflow-x: auto;
-  min-height: 0.01%; // Workaround for IE9 bug (see https://github.com/twbs/bootstrap/issues/14837)
-
-  @media screen and (max-width: @screen-xs-max) {
-    width: 100%;
-    margin-bottom: (@line-height-computed * 0.75);
-    overflow-y: hidden;
-    -ms-overflow-style: -ms-autohiding-scrollbar;
-    border: 1px solid @table-border-color;
-
-    // Tighten up spacing
-    > .table {
-      margin-bottom: 0;
-
-      // Ensure the content doesn't wrap
-      > thead,
-      > tbody,
-      > tfoot {
-        > tr {
-          > th,
-          > td {
-            white-space: nowrap;
-          }
-        }
-      }
-    }
-
-    // Special overrides for the bordered tables
-    > .table-bordered {
-      border: 0;
-
-      // Nuke the appropriate borders so that the parent can handle them
-      > thead,
-      > tbody,
-      > tfoot {
-        > tr {
-          > th:first-child,
-          > td:first-child {
-            border-left: 0;
-          }
-          > th:last-child,
-          > td:last-child {
-            border-right: 0;
-          }
-        }
-      }
-
-      // Only nuke the last row's bottom-border in `tbody` and `tfoot` since
-      // chances are there will be only one `tr` in a `thead` and that would
-      // remove the border altogether.
-      > tbody,
-      > tfoot {
-        > tr:last-child {
-          > th,
-          > td {
-            border-bottom: 0;
-          }
-        }
-      }
-
-    }
-  }
-}
diff --git a/css/bootstrap/theme.less b/css/bootstrap/theme.less
deleted file mode 100644
index fb61744..0000000
--- a/css/bootstrap/theme.less
+++ /dev/null
@@ -1,291 +0,0 @@
-/*!
- * Bootstrap v3.3.7 (http://getbootstrap.com)
- * Copyright 2011-2016 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- */
-
-//
-// Load core variables and mixins
-// --------------------------------------------------
-
-@import "variables.less";
-@import "mixins.less";
-
-
-//
-// Buttons
-// --------------------------------------------------
-
-// Common styles
-.btn-default,
-.btn-primary,
-.btn-success,
-.btn-info,
-.btn-warning,
-.btn-danger {
-  text-shadow: 0 -1px 0 rgba(0,0,0,.2);
-  @shadow: inset 0 1px 0 rgba(255,255,255,.15), 0 1px 1px rgba(0,0,0,.075);
-  .box-shadow(@shadow);
-
-  // Reset the shadow
-  &:active,
-  &.active {
-    .box-shadow(inset 0 3px 5px rgba(0,0,0,.125));
-  }
-
-  &.disabled,
-  &[disabled],
-  fieldset[disabled] & {
-    .box-shadow(none);
-  }
-
-  .badge {
-    text-shadow: none;
-  }
-}
-
-// Mixin for generating new styles
-.btn-styles(@btn-color: #555) {
-  #gradient > .vertical(@start-color: @btn-color; @end-color: darken(@btn-color, 12%));
-  .reset-filter(); // Disable gradients for IE9 because filter bleeds through rounded corners; see https://github.com/twbs/bootstrap/issues/10620
-  background-repeat: repeat-x;
-  border-color: darken(@btn-color, 14%);
-
-  &:hover,
-  &:focus  {
-    background-color: darken(@btn-color, 12%);
-    background-position: 0 -15px;
-  }
-
-  &:active,
-  &.active {
-    background-color: darken(@btn-color, 12%);
-    border-color: darken(@btn-color, 14%);
-  }
-
-  &.disabled,
-  &[disabled],
-  fieldset[disabled] & {
-    &,
-    &:hover,
-    &:focus,
-    &.focus,
-    &:active,
-    &.active {
-      background-color: darken(@btn-color, 12%);
-      background-image: none;
-    }
-  }
-}
-
-// Common styles
-.btn {
-  // Remove the gradient for the pressed/active state
-  &:active,
-  &.active {
-    background-image: none;
-  }
-}
-
-// Apply the mixin to the buttons
-.btn-default { .btn-styles(@btn-default-bg); text-shadow: 0 1px 0 #fff; border-color: #ccc; }
-.btn-primary { .btn-styles(@btn-primary-bg); }
-.btn-success { .btn-styles(@btn-success-bg); }
-.btn-info    { .btn-styles(@btn-info-bg); }
-.btn-warning { .btn-styles(@btn-warning-bg); }
-.btn-danger  { .btn-styles(@btn-danger-bg); }
-
-
-//
-// Images
-// --------------------------------------------------
-
-.thumbnail,
-.img-thumbnail {
-  .box-shadow(0 1px 2px rgba(0,0,0,.075));
-}
-
-
-//
-// Dropdowns
-// --------------------------------------------------
-
-.dropdown-menu > li > a:hover,
-.dropdown-menu > li > a:focus {
-  #gradient > .vertical(@start-color: @dropdown-link-hover-bg; @end-color: darken(@dropdown-link-hover-bg, 5%));
-  background-color: darken(@dropdown-link-hover-bg, 5%);
-}
-.dropdown-menu > .active > a,
-.dropdown-menu > .active > a:hover,
-.dropdown-menu > .active > a:focus {
-  #gradient > .vertical(@start-color: @dropdown-link-active-bg; @end-color: darken(@dropdown-link-active-bg, 5%));
-  background-color: darken(@dropdown-link-active-bg, 5%);
-}
-
-
-//
-// Navbar
-// --------------------------------------------------
-
-// Default navbar
-.navbar-default {
-  #gradient > .vertical(@start-color: lighten(@navbar-default-bg, 10%); @end-color: @navbar-default-bg);
-  .reset-filter(); // Remove gradient in IE<10 to fix bug where dropdowns don't get triggered
-  border-radius: @navbar-border-radius;
-  @shadow: inset 0 1px 0 rgba(255,255,255,.15), 0 1px 5px rgba(0,0,0,.075);
-  .box-shadow(@shadow);
-
-  .navbar-nav > .open > a,
-  .navbar-nav > .active > a {
-    #gradient > .vertical(@start-color: darken(@navbar-default-link-active-bg, 5%); @end-color: darken(@navbar-default-link-active-bg, 2%));
-    .box-shadow(inset 0 3px 9px rgba(0,0,0,.075));
-  }
-}
-.navbar-brand,
-.navbar-nav > li > a {
-  text-shadow: 0 1px 0 rgba(255,255,255,.25);
-}
-
-// Inverted navbar
-.navbar-inverse {
-  #gradient > .vertical(@start-color: lighten(@navbar-inverse-bg, 10%); @end-color: @navbar-inverse-bg);
-  .reset-filter(); // Remove gradient in IE<10 to fix bug where dropdowns don't get triggered; see https://github.com/twbs/bootstrap/issues/10257
-  border-radius: @navbar-border-radius;
-  .navbar-nav > .open > a,
-  .navbar-nav > .active > a {
-    #gradient > .vertical(@start-color: @navbar-inverse-link-active-bg; @end-color: lighten(@navbar-inverse-link-active-bg, 2.5%));
-    .box-shadow(inset 0 3px 9px rgba(0,0,0,.25));
-  }
-
-  .navbar-brand,
-  .navbar-nav > li > a {
-    text-shadow: 0 -1px 0 rgba(0,0,0,.25);
-  }
-}
-
-// Undo rounded corners in static and fixed navbars
-.navbar-static-top,
-.navbar-fixed-top,
-.navbar-fixed-bottom {
-  border-radius: 0;
-}
-
-// Fix active state of dropdown items in collapsed mode
-@media (max-width: @grid-float-breakpoint-max) {
-  .navbar .navbar-nav .open .dropdown-menu > .active > a {
-    &,
-    &:hover,
-    &:focus {
-      color: #fff;
-      #gradient > .vertical(@start-color: @dropdown-link-active-bg; @end-color: darken(@dropdown-link-active-bg, 5%));
-    }
-  }
-}
-
-
-//
-// Alerts
-// --------------------------------------------------
-
-// Common styles
-.alert {
-  text-shadow: 0 1px 0 rgba(255,255,255,.2);
-  @shadow: inset 0 1px 0 rgba(255,255,255,.25), 0 1px 2px rgba(0,0,0,.05);
-  .box-shadow(@shadow);
-}
-
-// Mixin for generating new styles
-.alert-styles(@color) {
-  #gradient > .vertical(@start-color: @color; @end-color: darken(@color, 7.5%));
-  border-color: darken(@color, 15%);
-}
-
-// Apply the mixin to the alerts
-.alert-success    { .alert-styles(@alert-success-bg); }
-.alert-info       { .alert-styles(@alert-info-bg); }
-.alert-warning    { .alert-styles(@alert-warning-bg); }
-.alert-danger     { .alert-styles(@alert-danger-bg); }
-
-
-//
-// Progress bars
-// --------------------------------------------------
-
-// Give the progress background some depth
-.progress {
-  #gradient > .vertical(@start-color: darken(@progress-bg, 4%); @end-color: @progress-bg)
-}
-
-// Mixin for generating new styles
-.progress-bar-styles(@color) {
-  #gradient > .vertical(@start-color: @color; @end-color: darken(@color, 10%));
-}
-
-// Apply the mixin to the progress bars
-.progress-bar            { .progress-bar-styles(@progress-bar-bg); }
-.progress-bar-success    { .progress-bar-styles(@progress-bar-success-bg); }
-.progress-bar-info       { .progress-bar-styles(@progress-bar-info-bg); }
-.progress-bar-warning    { .progress-bar-styles(@progress-bar-warning-bg); }
-.progress-bar-danger     { .progress-bar-styles(@progress-bar-danger-bg); }
-
-// Reset the striped class because our mixins don't do multiple gradients and
-// the above custom styles override the new `.progress-bar-striped` in v3.2.0.
-.progress-bar-striped {
-  #gradient > .striped();
-}
-
-
-//
-// List groups
-// --------------------------------------------------
-
-.list-group {
-  border-radius: @border-radius-base;
-  .box-shadow(0 1px 2px rgba(0,0,0,.075));
-}
-.list-group-item.active,
-.list-group-item.active:hover,
-.list-group-item.active:focus {
-  text-shadow: 0 -1px 0 darken(@list-group-active-bg, 10%);
-  #gradient > .vertical(@start-color: @list-group-active-bg; @end-color: darken(@list-group-active-bg, 7.5%));
-  border-color: darken(@list-group-active-border, 7.5%);
-
-  .badge {
-    text-shadow: none;
-  }
-}
-
-
-//
-// Panels
-// --------------------------------------------------
-
-// Common styles
-.panel {
-  .box-shadow(0 1px 2px rgba(0,0,0,.05));
-}
-
-// Mixin for generating new styles
-.panel-heading-styles(@color) {
-  #gradient > .vertical(@start-color: @color; @end-color: darken(@color, 5%));
-}
-
-// Apply the mixin to the panel headings only
-.panel-default > .panel-heading   { .panel-heading-styles(@panel-default-heading-bg); }
-.panel-primary > .panel-heading   { .panel-heading-styles(@panel-primary-heading-bg); }
-.panel-success > .panel-heading   { .panel-heading-styles(@panel-success-heading-bg); }
-.panel-info > .panel-heading      { .panel-heading-styles(@panel-info-heading-bg); }
-.panel-warning > .panel-heading   { .panel-heading-styles(@panel-warning-heading-bg); }
-.panel-danger > .panel-heading    { .panel-heading-styles(@panel-danger-heading-bg); }
-
-
-//
-// Wells
-// --------------------------------------------------
-
-.well {
-  #gradient > .vertical(@start-color: darken(@well-bg, 5%); @end-color: @well-bg);
-  border-color: darken(@well-bg, 10%);
-  @shadow: inset 0 1px 3px rgba(0,0,0,.05), 0 1px 0 rgba(255,255,255,.1);
-  .box-shadow(@shadow);
-}
diff --git a/css/bootstrap/thumbnails.less b/css/bootstrap/thumbnails.less
deleted file mode 100644
index 0713e67..0000000
--- a/css/bootstrap/thumbnails.less
+++ /dev/null
@@ -1,36 +0,0 @@
-//
-// Thumbnails
-// --------------------------------------------------
-
-
-// Mixin and adjust the regular image class
-.thumbnail {
-  display: block;
-  padding: @thumbnail-padding;
-  margin-bottom: @line-height-computed;
-  line-height: @line-height-base;
-  background-color: @thumbnail-bg;
-  border: 1px solid @thumbnail-border;
-  border-radius: @thumbnail-border-radius;
-  .transition(border .2s ease-in-out);
-
-  > img,
-  a > img {
-    &:extend(.img-responsive);
-    margin-left: auto;
-    margin-right: auto;
-  }
-
-  // Add a hover state for linked versions only
-  a&:hover,
-  a&:focus,
-  a&.active {
-    border-color: @link-color;
-  }
-
-  // Image captions
-  .caption {
-    padding: @thumbnail-caption-padding;
-    color: @thumbnail-caption-color;
-  }
-}
diff --git a/css/bootstrap/tooltip.less b/css/bootstrap/tooltip.less
deleted file mode 100644
index b48d63e..0000000
--- a/css/bootstrap/tooltip.less
+++ /dev/null
@@ -1,101 +0,0 @@
-//
-// Tooltips
-// --------------------------------------------------
-
-
-// Base class
-.tooltip {
-  position: absolute;
-  z-index: @zindex-tooltip;
-  display: block;
-  // Our parent element can be arbitrary since tooltips are by default inserted as a sibling of their target element.
-  // So reset our font and text properties to avoid inheriting weird values.
-  .reset-text();
-  font-size: @font-size-small;
-
-  .opacity(0);
-
-  &.in     { .opacity(@tooltip-opacity); }
-  &.top    { margin-top:  -3px; padding: @tooltip-arrow-width 0; }
-  &.right  { margin-left:  3px; padding: 0 @tooltip-arrow-width; }
-  &.bottom { margin-top:   3px; padding: @tooltip-arrow-width 0; }
-  &.left   { margin-left: -3px; padding: 0 @tooltip-arrow-width; }
-}
-
-// Wrapper for the tooltip content
-.tooltip-inner {
-  max-width: @tooltip-max-width;
-  padding: 3px 8px;
-  color: @tooltip-color;
-  text-align: center;
-  background-color: @tooltip-bg;
-  border-radius: @border-radius-base;
-}
-
-// Arrows
-.tooltip-arrow {
-  position: absolute;
-  width: 0;
-  height: 0;
-  border-color: transparent;
-  border-style: solid;
-}
-// Note: Deprecated .top-left, .top-right, .bottom-left, and .bottom-right as of v3.3.1
-.tooltip {
-  &.top .tooltip-arrow {
-    bottom: 0;
-    left: 50%;
-    margin-left: -@tooltip-arrow-width;
-    border-width: @tooltip-arrow-width @tooltip-arrow-width 0;
-    border-top-color: @tooltip-arrow-color;
-  }
-  &.top-left .tooltip-arrow {
-    bottom: 0;
-    right: @tooltip-arrow-width;
-    margin-bottom: -@tooltip-arrow-width;
-    border-width: @tooltip-arrow-width @tooltip-arrow-width 0;
-    border-top-color: @tooltip-arrow-color;
-  }
-  &.top-right .tooltip-arrow {
-    bottom: 0;
-    left: @tooltip-arrow-width;
-    margin-bottom: -@tooltip-arrow-width;
-    border-width: @tooltip-arrow-width @tooltip-arrow-width 0;
-    border-top-color: @tooltip-arrow-color;
-  }
-  &.right .tooltip-arrow {
-    top: 50%;
-    left: 0;
-    margin-top: -@tooltip-arrow-width;
-    border-width: @tooltip-arrow-width @tooltip-arrow-width @tooltip-arrow-width 0;
-    border-right-color: @tooltip-arrow-color;
-  }
-  &.left .tooltip-arrow {
-    top: 50%;
-    right: 0;
-    margin-top: -@tooltip-arrow-width;
-    border-width: @tooltip-arrow-width 0 @tooltip-arrow-width @tooltip-arrow-width;
-    border-left-color: @tooltip-arrow-color;
-  }
-  &.bottom .tooltip-arrow {
-    top: 0;
-    left: 50%;
-    margin-left: -@tooltip-arrow-width;
-    border-width: 0 @tooltip-arrow-width @tooltip-arrow-width;
-    border-bottom-color: @tooltip-arrow-color;
-  }
-  &.bottom-left .tooltip-arrow {
-    top: 0;
-    right: @tooltip-arrow-width;
-    margin-top: -@tooltip-arrow-width;
-    border-width: 0 @tooltip-arrow-width @tooltip-arrow-width;
-    border-bottom-color: @tooltip-arrow-color;
-  }
-  &.bottom-right .tooltip-arrow {
-    top: 0;
-    left: @tooltip-arrow-width;
-    margin-top: -@tooltip-arrow-width;
-    border-width: 0 @tooltip-arrow-width @tooltip-arrow-width;
-    border-bottom-color: @tooltip-arrow-color;
-  }
-}
diff --git a/css/bootstrap/type.less b/css/bootstrap/type.less
deleted file mode 100644
index 0d4fee4..0000000
--- a/css/bootstrap/type.less
+++ /dev/null
@@ -1,302 +0,0 @@
-//
-// Typography
-// --------------------------------------------------
-
-
-// Headings
-// -------------------------
-
-h1, h2, h3, h4, h5, h6,
-.h1, .h2, .h3, .h4, .h5, .h6 {
-  font-family: @headings-font-family;
-  font-weight: @headings-font-weight;
-  line-height: @headings-line-height;
-  color: @headings-color;
-
-  small,
-  .small {
-    font-weight: normal;
-    line-height: 1;
-    color: @headings-small-color;
-  }
-}
-
-h1, .h1,
-h2, .h2,
-h3, .h3 {
-  margin-top: @line-height-computed;
-  margin-bottom: (@line-height-computed / 2);
-
-  small,
-  .small {
-    font-size: 65%;
-  }
-}
-h4, .h4,
-h5, .h5,
-h6, .h6 {
-  margin-top: (@line-height-computed / 2);
-  margin-bottom: (@line-height-computed / 2);
-
-  small,
-  .small {
-    font-size: 75%;
-  }
-}
-
-h1, .h1 { font-size: @font-size-h1; }
-h2, .h2 { font-size: @font-size-h2; }
-h3, .h3 { font-size: @font-size-h3; }
-h4, .h4 { font-size: @font-size-h4; }
-h5, .h5 { font-size: @font-size-h5; }
-h6, .h6 { font-size: @font-size-h6; }
-
-
-// Body text
-// -------------------------
-
-p {
-  margin: 0 0 (@line-height-computed / 2);
-}
-
-.lead {
-  margin-bottom: @line-height-computed;
-  font-size: floor((@font-size-base * 1.15));
-  font-weight: 300;
-  line-height: 1.4;
-
-  @media (min-width: @screen-sm-min) {
-    font-size: (@font-size-base * 1.5);
-  }
-}
-
-
-// Emphasis & misc
-// -------------------------
-
-// Ex: (12px small font / 14px base font) * 100% = about 85%
-small,
-.small {
-  font-size: floor((100% * @font-size-small / @font-size-base));
-}
-
-mark,
-.mark {
-  background-color: @state-warning-bg;
-  padding: .2em;
-}
-
-// Alignment
-.text-left           { text-align: left; }
-.text-right          { text-align: right; }
-.text-center         { text-align: center; }
-.text-justify        { text-align: justify; }
-.text-nowrap         { white-space: nowrap; }
-
-// Transformation
-.text-lowercase      { text-transform: lowercase; }
-.text-uppercase      { text-transform: uppercase; }
-.text-capitalize     { text-transform: capitalize; }
-
-// Contextual colors
-.text-muted {
-  color: @text-muted;
-}
-.text-primary {
-  .text-emphasis-variant(@brand-primary);
-}
-.text-success {
-  .text-emphasis-variant(@state-success-text);
-}
-.text-info {
-  .text-emphasis-variant(@state-info-text);
-}
-.text-warning {
-  .text-emphasis-variant(@state-warning-text);
-}
-.text-danger {
-  .text-emphasis-variant(@state-danger-text);
-}
-
-// Contextual backgrounds
-// For now we'll leave these alongside the text classes until v4 when we can
-// safely shift things around (per SemVer rules).
-.bg-primary {
-  // Given the contrast here, this is the only class to have its color inverted
-  // automatically.
-  color: #fff;
-  .bg-variant(@brand-primary);
-}
-.bg-success {
-  .bg-variant(@state-success-bg);
-}
-.bg-info {
-  .bg-variant(@state-info-bg);
-}
-.bg-warning {
-  .bg-variant(@state-warning-bg);
-}
-.bg-danger {
-  .bg-variant(@state-danger-bg);
-}
-
-
-// Page header
-// -------------------------
-
-.page-header {
-  padding-bottom: ((@line-height-computed / 2) - 1);
-  margin: (@line-height-computed * 2) 0 @line-height-computed;
-  border-bottom: 1px solid @page-header-border-color;
-}
-
-
-// Lists
-// -------------------------
-
-// Unordered and Ordered lists
-ul,
-ol {
-  margin-top: 0;
-  margin-bottom: (@line-height-computed / 2);
-  ul,
-  ol {
-    margin-bottom: 0;
-  }
-}
-
-// List options
-
-// Unstyled keeps list items block level, just removes default browser padding and list-style
-.list-unstyled {
-  padding-left: 0;
-  list-style: none;
-}
-
-// Inline turns list items into inline-block
-.list-inline {
-  .list-unstyled();
-  margin-left: -5px;
-
-  > li {
-    display: inline-block;
-    padding-left: 5px;
-    padding-right: 5px;
-  }
-}
-
-// Description Lists
-dl {
-  margin-top: 0; // Remove browser default
-  margin-bottom: @line-height-computed;
-}
-dt,
-dd {
-  line-height: @line-height-base;
-}
-dt {
-  font-weight: bold;
-}
-dd {
-  margin-left: 0; // Undo browser default
-}
-
-// Horizontal description lists
-//
-// Defaults to being stacked without any of the below styles applied, until the
-// grid breakpoint is reached (default of ~768px).
-
-.dl-horizontal {
-  dd {
-    &:extend(.clearfix all); // Clear the floated `dt` if an empty `dd` is present
-  }
-
-  @media (min-width: @dl-horizontal-breakpoint) {
-    dt {
-      float: left;
-      width: (@dl-horizontal-offset - 20);
-      clear: left;
-      text-align: right;
-      .text-overflow();
-    }
-    dd {
-      margin-left: @dl-horizontal-offset;
-    }
-  }
-}
-
-
-// Misc
-// -------------------------
-
-// Abbreviations and acronyms
-abbr[title],
-// Add data-* attribute to help out our tooltip plugin, per https://github.com/twbs/bootstrap/issues/5257
-abbr[data-original-title] {
-  cursor: help;
-  border-bottom: 1px dotted @abbr-border-color;
-}
-.initialism {
-  font-size: 90%;
-  .text-uppercase();
-}
-
-// Blockquotes
-blockquote {
-  padding: (@line-height-computed / 2) @line-height-computed;
-  margin: 0 0 @line-height-computed;
-  font-size: @blockquote-font-size;
-  border-left: 5px solid @blockquote-border-color;
-
-  p,
-  ul,
-  ol {
-    &:last-child {
-      margin-bottom: 0;
-    }
-  }
-
-  // Note: Deprecated small and .small as of v3.1.0
-  // Context: https://github.com/twbs/bootstrap/issues/11660
-  footer,
-  small,
-  .small {
-    display: block;
-    font-size: 80%; // back to default font-size
-    line-height: @line-height-base;
-    color: @blockquote-small-color;
-
-    &:before {
-      content: '\2014 \00A0'; // em dash, nbsp
-    }
-  }
-}
-
-// Opposite alignment of blockquote
-//
-// Heads up: `blockquote.pull-right` has been deprecated as of v3.1.0.
-.blockquote-reverse,
-blockquote.pull-right {
-  padding-right: 15px;
-  padding-left: 0;
-  border-right: 5px solid @blockquote-border-color;
-  border-left: 0;
-  text-align: right;
-
-  // Account for citation
-  footer,
-  small,
-  .small {
-    &:before { content: ''; }
-    &:after {
-      content: '\00A0 \2014'; // nbsp, em dash
-    }
-  }
-}
-
-// Addresses
-address {
-  margin-bottom: @line-height-computed;
-  font-style: normal;
-  line-height: @line-height-base;
-}
diff --git a/css/bootstrap/utilities.less b/css/bootstrap/utilities.less
deleted file mode 100644
index 7a8ca27..0000000
--- a/css/bootstrap/utilities.less
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Utility classes
-// --------------------------------------------------
-
-
-// Floats
-// -------------------------
-
-.clearfix {
-  .clearfix();
-}
-.center-block {
-  .center-block();
-}
-.pull-right {
-  float: right !important;
-}
-.pull-left {
-  float: left !important;
-}
-
-
-// Toggling content
-// -------------------------
-
-// Note: Deprecated .hide in favor of .hidden or .sr-only (as appropriate) in v3.0.1
-.hide {
-  display: none !important;
-}
-.show {
-  display: block !important;
-}
-.invisible {
-  visibility: hidden;
-}
-.text-hide {
-  .text-hide();
-}
-
-
-// Hide from screenreaders and browsers
-//
-// Credit: HTML5 Boilerplate
-
-.hidden {
-  display: none !important;
-}
-
-
-// For Affix plugin
-// -------------------------
-
-.affix {
-  position: fixed;
-}
diff --git a/css/bootstrap/utilities/_align.scss b/css/bootstrap/utilities/_align.scss
new file mode 100644
index 0000000..8b7df9f
--- /dev/null
+++ b/css/bootstrap/utilities/_align.scss
@@ -0,0 +1,8 @@
+// stylelint-disable declaration-no-important
+
+.align-baseline    { vertical-align: baseline !important; } // Browser default
+.align-top         { vertical-align: top !important; }
+.align-middle      { vertical-align: middle !important; }
+.align-bottom      { vertical-align: bottom !important; }
+.align-text-bottom { vertical-align: text-bottom !important; }
+.align-text-top    { vertical-align: text-top !important; }
diff --git a/css/bootstrap/utilities/_background.scss b/css/bootstrap/utilities/_background.scss
new file mode 100644
index 0000000..3accbc4
--- /dev/null
+++ b/css/bootstrap/utilities/_background.scss
@@ -0,0 +1,19 @@
+// stylelint-disable declaration-no-important
+
+@each $color, $value in $theme-colors {
+  @include bg-variant(".bg-#{$color}", $value, true);
+}
+
+@if $enable-gradients {
+  @each $color, $value in $theme-colors {
+    @include bg-gradient-variant(".bg-gradient-#{$color}", $value, true);
+  }
+}
+
+.bg-white {
+  background-color: $white !important;
+}
+
+.bg-transparent {
+  background-color: transparent !important;
+}
diff --git a/css/bootstrap/utilities/_borders.scss b/css/bootstrap/utilities/_borders.scss
new file mode 100644
index 0000000..205f3fc
--- /dev/null
+++ b/css/bootstrap/utilities/_borders.scss
@@ -0,0 +1,75 @@
+// stylelint-disable property-disallowed-list, declaration-no-important
+
+//
+// Border
+//
+
+.border         { border: $border-width solid $border-color !important; }
+.border-top     { border-top: $border-width solid $border-color !important; }
+.border-right   { border-right: $border-width solid $border-color !important; }
+.border-bottom  { border-bottom: $border-width solid $border-color !important; }
+.border-left    { border-left: $border-width solid $border-color !important; }
+
+.border-0        { border: 0 !important; }
+.border-top-0    { border-top: 0 !important; }
+.border-right-0  { border-right: 0 !important; }
+.border-bottom-0 { border-bottom: 0 !important; }
+.border-left-0   { border-left: 0 !important; }
+
+@each $color, $value in $theme-colors {
+  .border-#{$color} {
+    border-color: $value !important;
+  }
+}
+
+.border-white {
+  border-color: $white !important;
+}
+
+//
+// Border-radius
+//
+
+.rounded-sm {
+  border-radius: $border-radius-sm !important;
+}
+
+.rounded {
+  border-radius: $border-radius !important;
+}
+
+.rounded-top {
+  border-top-left-radius: $border-radius !important;
+  border-top-right-radius: $border-radius !important;
+}
+
+.rounded-right {
+  border-top-right-radius: $border-radius !important;
+  border-bottom-right-radius: $border-radius !important;
+}
+
+.rounded-bottom {
+  border-bottom-right-radius: $border-radius !important;
+  border-bottom-left-radius: $border-radius !important;
+}
+
+.rounded-left {
+  border-top-left-radius: $border-radius !important;
+  border-bottom-left-radius: $border-radius !important;
+}
+
+.rounded-lg {
+  border-radius: $border-radius-lg !important;
+}
+
+.rounded-circle {
+  border-radius: 50% !important;
+}
+
+.rounded-pill {
+  border-radius: $rounded-pill !important;
+}
+
+.rounded-0 {
+  border-radius: 0 !important;
+}
diff --git a/css/bootstrap/utilities/_clearfix.scss b/css/bootstrap/utilities/_clearfix.scss
new file mode 100644
index 0000000..e92522a
--- /dev/null
+++ b/css/bootstrap/utilities/_clearfix.scss
@@ -0,0 +1,3 @@
+.clearfix {
+  @include clearfix();
+}
diff --git a/css/bootstrap/utilities/_display.scss b/css/bootstrap/utilities/_display.scss
new file mode 100644
index 0000000..1303679
--- /dev/null
+++ b/css/bootstrap/utilities/_display.scss
@@ -0,0 +1,26 @@
+// stylelint-disable declaration-no-important
+
+//
+// Utilities for common `display` values
+//
+
+@each $breakpoint in map-keys($grid-breakpoints) {
+  @include media-breakpoint-up($breakpoint) {
+    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);
+
+    @each $value in $displays {
+      .d#{$infix}-#{$value} { display: $value !important; }
+    }
+  }
+}
+
+
+//
+// Utilities for toggling `display` in print
+//
+
+@media print {
+  @each $value in $displays {
+    .d-print-#{$value} { display: $value !important; }
+  }
+}
diff --git a/css/bootstrap/utilities/_embed.scss b/css/bootstrap/utilities/_embed.scss
new file mode 100644
index 0000000..e37465e
--- /dev/null
+++ b/css/bootstrap/utilities/_embed.scss
@@ -0,0 +1,39 @@
+// Credit: Nicolas Gallagher and SUIT CSS.
+
+.embed-responsive {
+  position: relative;
+  display: block;
+  width: 100%;
+  padding: 0;
+  overflow: hidden;
+
+  &::before {
+    display: block;
+    content: "";
+  }
+
+  .embed-responsive-item,
+  iframe,
+  embed,
+  object,
+  video {
+    position: absolute;
+    top: 0;
+    bottom: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    border: 0;
+  }
+}
+
+@each $embed-responsive-aspect-ratio in $embed-responsive-aspect-ratios {
+  $embed-responsive-aspect-ratio-x: nth($embed-responsive-aspect-ratio, 1);
+  $embed-responsive-aspect-ratio-y: nth($embed-responsive-aspect-ratio, 2);
+
+  .embed-responsive-#{$embed-responsive-aspect-ratio-x}by#{$embed-responsive-aspect-ratio-y} {
+    &::before {
+      padding-top: percentage(divide($embed-responsive-aspect-ratio-y, $embed-responsive-aspect-ratio-x));
+    }
+  }
+}
diff --git a/css/bootstrap/utilities/_flex.scss b/css/bootstrap/utilities/_flex.scss
new file mode 100644
index 0000000..3d4266e
--- /dev/null
+++ b/css/bootstrap/utilities/_flex.scss
@@ -0,0 +1,51 @@
+// stylelint-disable declaration-no-important
+
+// Flex variation
+//
+// Custom styles for additional flex alignment options.
+
+@each $breakpoint in map-keys($grid-breakpoints) {
+  @include media-breakpoint-up($breakpoint) {
+    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);
+
+    .flex#{$infix}-row            { flex-direction: row !important; }
+    .flex#{$infix}-column         { flex-direction: column !important; }
+    .flex#{$infix}-row-reverse    { flex-direction: row-reverse !important; }
+    .flex#{$infix}-column-reverse { flex-direction: column-reverse !important; }
+
+    .flex#{$infix}-wrap         { flex-wrap: wrap !important; }
+    .flex#{$infix}-nowrap       { flex-wrap: nowrap !important; }
+    .flex#{$infix}-wrap-reverse { flex-wrap: wrap-reverse !important; }
+    .flex#{$infix}-fill         { flex: 1 1 auto !important; }
+    .flex#{$infix}-grow-0       { flex-grow: 0 !important; }
+    .flex#{$infix}-grow-1       { flex-grow: 1 !important; }
+    .flex#{$infix}-shrink-0     { flex-shrink: 0 !important; }
+    .flex#{$infix}-shrink-1     { flex-shrink: 1 !important; }
+
+    .justify-content#{$infix}-start   { justify-content: flex-start !important; }
+    .justify-content#{$infix}-end     { justify-content: flex-end !important; }
+    .justify-content#{$infix}-center  { justify-content: center !important; }
+    .justify-content#{$infix}-between { justify-content: space-between !important; }
+    .justify-content#{$infix}-around  { justify-content: space-around !important; }
+
+    .align-items#{$infix}-start    { align-items: flex-start !important; }
+    .align-items#{$infix}-end      { align-items: flex-end !important; }
+    .align-items#{$infix}-center   { align-items: center !important; }
+    .align-items#{$infix}-baseline { align-items: baseline !important; }
+    .align-items#{$infix}-stretch  { align-items: stretch !important; }
+
+    .align-content#{$infix}-start   { align-content: flex-start !important; }
+    .align-content#{$infix}-end     { align-content: flex-end !important; }
+    .align-content#{$infix}-center  { align-content: center !important; }
+    .align-content#{$infix}-between { align-content: space-between !important; }
+    .align-content#{$infix}-around  { align-content: space-around !important; }
+    .align-content#{$infix}-stretch { align-content: stretch !important; }
+
+    .align-self#{$infix}-auto     { align-self: auto !important; }
+    .align-self#{$infix}-start    { align-self: flex-start !important; }
+    .align-self#{$infix}-end      { align-self: flex-end !important; }
+    .align-self#{$infix}-center   { align-self: center !important; }
+    .align-self#{$infix}-baseline { align-self: baseline !important; }
+    .align-self#{$infix}-stretch  { align-self: stretch !important; }
+  }
+}
diff --git a/css/bootstrap/utilities/_float.scss b/css/bootstrap/utilities/_float.scss
new file mode 100644
index 0000000..5425084
--- /dev/null
+++ b/css/bootstrap/utilities/_float.scss
@@ -0,0 +1,11 @@
+// stylelint-disable declaration-no-important
+
+@each $breakpoint in map-keys($grid-breakpoints) {
+  @include media-breakpoint-up($breakpoint) {
+    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);
+
+    .float#{$infix}-left  { float: left !important; }
+    .float#{$infix}-right { float: right !important; }
+    .float#{$infix}-none  { float: none !important; }
+  }
+}
diff --git a/css/bootstrap/utilities/_interactions.scss b/css/bootstrap/utilities/_interactions.scss
new file mode 100644
index 0000000..cc75fc2
--- /dev/null
+++ b/css/bootstrap/utilities/_interactions.scss
@@ -0,0 +1,5 @@
+// stylelint-disable declaration-no-important
+
+@each $value in $user-selects {
+  .user-select-#{$value} { user-select: $value !important; }
+}
diff --git a/css/bootstrap/utilities/_overflow.scss b/css/bootstrap/utilities/_overflow.scss
new file mode 100644
index 0000000..8326c30
--- /dev/null
+++ b/css/bootstrap/utilities/_overflow.scss
@@ -0,0 +1,5 @@
+// stylelint-disable declaration-no-important
+
+@each $value in $overflows {
+  .overflow-#{$value} { overflow: $value !important; }
+}
diff --git a/css/bootstrap/utilities/_position.scss b/css/bootstrap/utilities/_position.scss
new file mode 100644
index 0000000..cdf6c11
--- /dev/null
+++ b/css/bootstrap/utilities/_position.scss
@@ -0,0 +1,32 @@
+// stylelint-disable declaration-no-important
+
+// Common values
+@each $position in $positions {
+  .position-#{$position} { position: $position !important; }
+}
+
+// Shorthand
+
+.fixed-top {
+  position: fixed;
+  top: 0;
+  right: 0;
+  left: 0;
+  z-index: $zindex-fixed;
+}
+
+.fixed-bottom {
+  position: fixed;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  z-index: $zindex-fixed;
+}
+
+.sticky-top {
+  @supports (position: sticky) {
+    position: sticky;
+    top: 0;
+    z-index: $zindex-sticky;
+  }
+}
diff --git a/css/bootstrap/utilities/_screenreaders.scss b/css/bootstrap/utilities/_screenreaders.scss
new file mode 100644
index 0000000..9f26fde
--- /dev/null
+++ b/css/bootstrap/utilities/_screenreaders.scss
@@ -0,0 +1,11 @@
+//
+// Screenreaders
+//
+
+.sr-only {
+  @include sr-only();
+}
+
+.sr-only-focusable {
+  @include sr-only-focusable();
+}
diff --git a/css/bootstrap/utilities/_shadows.scss b/css/bootstrap/utilities/_shadows.scss
new file mode 100644
index 0000000..f5d03fc
--- /dev/null
+++ b/css/bootstrap/utilities/_shadows.scss
@@ -0,0 +1,6 @@
+// stylelint-disable declaration-no-important
+
+.shadow-sm { box-shadow: $box-shadow-sm !important; }
+.shadow { box-shadow: $box-shadow !important; }
+.shadow-lg { box-shadow: $box-shadow-lg !important; }
+.shadow-none { box-shadow: none !important; }
diff --git a/css/bootstrap/utilities/_sizing.scss b/css/bootstrap/utilities/_sizing.scss
new file mode 100644
index 0000000..f376488
--- /dev/null
+++ b/css/bootstrap/utilities/_sizing.scss
@@ -0,0 +1,20 @@
+// stylelint-disable declaration-no-important
+
+// Width and height
+
+@each $prop, $abbrev in (width: w, height: h) {
+  @each $size, $length in $sizes {
+    .#{$abbrev}-#{$size} { #{$prop}: $length !important; }
+  }
+}
+
+.mw-100 { max-width: 100% !important; }
+.mh-100 { max-height: 100% !important; }
+
+// Viewport additional helpers
+
+.min-vw-100 { min-width: 100vw !important; }
+.min-vh-100 { min-height: 100vh !important; }
+
+.vw-100 { width: 100vw !important; }
+.vh-100 { height: 100vh !important; }
diff --git a/css/bootstrap/utilities/_spacing.scss b/css/bootstrap/utilities/_spacing.scss
new file mode 100644
index 0000000..3e98581
--- /dev/null
+++ b/css/bootstrap/utilities/_spacing.scss
@@ -0,0 +1,73 @@
+// stylelint-disable declaration-no-important
+
+// Margin and Padding
+
+@each $breakpoint in map-keys($grid-breakpoints) {
+  @include media-breakpoint-up($breakpoint) {
+    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);
+
+    @each $prop, $abbrev in (margin: m, padding: p) {
+      @each $size, $length in $spacers {
+        .#{$abbrev}#{$infix}-#{$size} { #{$prop}: $length !important; }
+        .#{$abbrev}t#{$infix}-#{$size},
+        .#{$abbrev}y#{$infix}-#{$size} {
+          #{$prop}-top: $length !important;
+        }
+        .#{$abbrev}r#{$infix}-#{$size},
+        .#{$abbrev}x#{$infix}-#{$size} {
+          #{$prop}-right: $length !important;
+        }
+        .#{$abbrev}b#{$infix}-#{$size},
+        .#{$abbrev}y#{$infix}-#{$size} {
+          #{$prop}-bottom: $length !important;
+        }
+        .#{$abbrev}l#{$infix}-#{$size},
+        .#{$abbrev}x#{$infix}-#{$size} {
+          #{$prop}-left: $length !important;
+        }
+      }
+    }
+
+    // Negative margins (e.g., where `.mb-n1` is negative version of `.mb-1`)
+    @each $size, $length in $spacers {
+      @if "#{$size}" != "0" {
+        .m#{$infix}-n#{$size} { margin: -$length !important; }
+        .mt#{$infix}-n#{$size},
+        .my#{$infix}-n#{$size} {
+          margin-top: -$length !important;
+        }
+        .mr#{$infix}-n#{$size},
+        .mx#{$infix}-n#{$size} {
+          margin-right: -$length !important;
+        }
+        .mb#{$infix}-n#{$size},
+        .my#{$infix}-n#{$size} {
+          margin-bottom: -$length !important;
+        }
+        .ml#{$infix}-n#{$size},
+        .mx#{$infix}-n#{$size} {
+          margin-left: -$length !important;
+        }
+      }
+    }
+
+    // Some special margin utils
+    .m#{$infix}-auto { margin: auto !important; }
+    .mt#{$infix}-auto,
+    .my#{$infix}-auto {
+      margin-top: auto !important;
+    }
+    .mr#{$infix}-auto,
+    .mx#{$infix}-auto {
+      margin-right: auto !important;
+    }
+    .mb#{$infix}-auto,
+    .my#{$infix}-auto {
+      margin-bottom: auto !important;
+    }
+    .ml#{$infix}-auto,
+    .mx#{$infix}-auto {
+      margin-left: auto !important;
+    }
+  }
+}
diff --git a/css/bootstrap/utilities/_stretched-link.scss b/css/bootstrap/utilities/_stretched-link.scss
new file mode 100644
index 0000000..fb5066b
--- /dev/null
+++ b/css/bootstrap/utilities/_stretched-link.scss
@@ -0,0 +1,19 @@
+//
+// Stretched link
+//
+
+.stretched-link {
+  &::after {
+    position: absolute;
+    top: 0;
+    right: 0;
+    bottom: 0;
+    left: 0;
+    z-index: 1;
+    // Just in case `pointer-events: none` is set on a parent
+    pointer-events: auto;
+    content: "";
+    // IE10 bugfix, see https://stackoverflow.com/questions/16947967/ie10-hover-pseudo-class-doesnt-work-without-background-color
+    background-color: rgba(0, 0, 0, 0);
+  }
+}
diff --git a/css/bootstrap/utilities/_text.scss b/css/bootstrap/utilities/_text.scss
new file mode 100644
index 0000000..3a9f83e
--- /dev/null
+++ b/css/bootstrap/utilities/_text.scss
@@ -0,0 +1,72 @@
+// stylelint-disable declaration-no-important
+
+//
+// Text
+//
+
+.text-monospace { font-family: $font-family-monospace !important; }
+
+// Alignment
+
+.text-justify  { text-align: justify !important; }
+.text-wrap     { white-space: normal !important; }
+.text-nowrap   { white-space: nowrap !important; }
+.text-truncate { @include text-truncate(); }
+
+// Responsive alignment
+
+@each $breakpoint in map-keys($grid-breakpoints) {
+  @include media-breakpoint-up($breakpoint) {
+    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);
+
+    .text#{$infix}-left   { text-align: left !important; }
+    .text#{$infix}-right  { text-align: right !important; }
+    .text#{$infix}-center { text-align: center !important; }
+  }
+}
+
+// Transformation
+
+.text-lowercase  { text-transform: lowercase !important; }
+.text-uppercase  { text-transform: uppercase !important; }
+.text-capitalize { text-transform: capitalize !important; }
+
+// Weight and italics
+
+.font-weight-light   { font-weight: $font-weight-light !important; }
+.font-weight-lighter { font-weight: $font-weight-lighter !important; }
+.font-weight-normal  { font-weight: $font-weight-normal !important; }
+.font-weight-bold    { font-weight: $font-weight-bold !important; }
+.font-weight-bolder  { font-weight: $font-weight-bolder !important; }
+.font-italic         { font-style: italic !important; }
+
+// Contextual colors
+
+.text-white { color: $white !important; }
+
+@each $color, $value in $theme-colors {
+  @include text-emphasis-variant(".text-#{$color}", $value, true);
+}
+
+.text-body { color: $body-color !important; }
+.text-muted { color: $text-muted !important; }
+
+.text-black-50 { color: rgba($black, .5) !important; }
+.text-white-50 { color: rgba($white, .5) !important; }
+
+// Misc
+
+.text-hide {
+  @include text-hide($ignore-warning: true);
+}
+
+.text-decoration-none { text-decoration: none !important; }
+
+.text-break {
+  word-break: break-word !important; // Deprecated, but avoids issues with flex containers
+  word-wrap: break-word !important; // Used instead of `overflow-wrap` for IE & Edge Legacy
+}
+
+// Reset
+
+.text-reset { color: inherit !important; }
diff --git a/css/bootstrap/utilities/_visibility.scss b/css/bootstrap/utilities/_visibility.scss
new file mode 100644
index 0000000..7756c3b
--- /dev/null
+++ b/css/bootstrap/utilities/_visibility.scss
@@ -0,0 +1,13 @@
+// stylelint-disable declaration-no-important
+
+//
+// Visibility utilities
+//
+
+.visible {
+  visibility: visible !important;
+}
+
+.invisible {
+  visibility: hidden !important;
+}
diff --git a/css/bootstrap/variables.less b/css/bootstrap/variables.less
deleted file mode 100644
index 4ddf111..0000000
--- a/css/bootstrap/variables.less
+++ /dev/null
@@ -1,872 +0,0 @@
-//
-// Variables
-// --------------------------------------------------
-
-
-//== Colors
-//
-//## Gray and brand colors for use across Bootstrap.
-
-@gray-base:              #000;
-@gray-darker:            lighten(@gray-base, 13.5%); // #222
-@gray-dark:              lighten(@gray-base, 20%);   // #333
-@gray:                   lighten(@gray-base, 33.5%); // #555
-@gray-light:             lighten(@gray-base, 46.7%); // #777
-@gray-light2:            lighten(@gray-base, 80%); // Nick
-@gray-lighter:           lighten(@gray-base, 93.5%); // #eee
-
-@brand-primary:         #0a0; // Nick darken(#428bca, 6.5%); // #337ab7
-@brand-success:         #ff8000; // Nick #5cb85c;
-@brand-info:            #5bc0de;
-@brand-warning:         #f0ad4e;
-@brand-danger:          #d9534f;
-
-
-//== Scaffolding
-//
-//## Settings for some of the most global styles.
-
-//** Background color for `<body>`.
-@body-bg:               #fff;
-//** Global text color on `<body>`.
-@text-color:            #000; // Nick @gray-dark;
-
-//** Global textual link color.
-@link-color:            darken(@brand-primary, 10%); // Nick @brand-primary;
-//** Link hover color set via `darken()` function.
-@link-hover-color:      darken(@link-color, 10%); // Nick 15%);
-//** Link hover decoration.
-@link-hover-decoration: underline;
-
-
-//== Typography
-//
-//## Font, line-height, and color for body text, headings, and more.
-
-@font-family-sans-serif:  "Nunito Sans", "Helvetica Neue", Helvetica, Arial, sans-serif; // Nick added Nunito Sans
-@font-family-serif:       "Frank Ruhl Libre", Georgia, "Times New Roman", Times, serif; // Nick added Frank Ruhl Libre
-//** Default monospace fonts for `<code>`, `<kbd>`, and `<pre>`.
-@font-family-monospace:   Menlo, Monaco, Consolas, "Courier New", monospace;
-@font-family-base:        @font-family-sans-serif;
-
-@font-size-base:          17px; // Nick 14px;
-@font-size-large:         ceil((@font-size-base * 1.25)); // ~18px
-@font-size-small:         ceil((@font-size-base * 0.85)); // ~12px
-
-@font-size-h1:            floor((@font-size-base * 1.8)); // Nick 2.6)); // ~36px
-@font-size-h2:            floor((@font-size-base * 1.6)); // Nick 2.15)); // ~30px
-@font-size-h3:            ceil((@font-size-base * 1.4)); // Nick 1.7)); // ~24px
-@font-size-h4:            ceil((@font-size-base * 1.2)); // ~18px
-@font-size-h5:            @font-size-base;
-@font-size-h6:            ceil((@font-size-base * 0.85)); // ~12px
-
-//** Unit-less `line-height` for use in components like buttons.
-@line-height-base:        1.428571429; // 20/14
-//** Computed "line-height" (`font-size` * `line-height`) for use with `margin`, `padding`, etc.
-@line-height-computed:    floor((@font-size-base * @line-height-base)); // ~20px
-
-//** By default, this inherits from the `<body>`.
-@headings-font-family:    inherit;
-@headings-font-weight:    600; // Nick 500;
-@headings-line-height:    1.1;
-@headings-color:          inherit;
-
-
-//== Iconography
-//
-//## Specify custom location and filename of the included Glyphicons icon font. Useful for those including Bootstrap via Bower.
-
-//** Load fonts from this directory.
-@icon-font-path:          "../fonts/";
-//** File name for all font files.
-@icon-font-name:          "glyphicons-halflings-regular";
-//** Element ID within SVG icon file.
-@icon-font-svg-id:        "glyphicons_halflingsregular";
-
-
-//== Components
-//
-//## Define common padding and border radius sizes and more. Values based on 14px text and 1.428 line-height (~20px to start).
-
-@padding-base-vertical:     6px;
-@padding-base-horizontal:   12px;
-
-@padding-large-vertical:    10px;
-@padding-large-horizontal:  16px;
-
-@padding-small-vertical:    5px;
-@padding-small-horizontal:  10px;
-
-@padding-xs-vertical:       1px;
-@padding-xs-horizontal:     5px;
-
-@line-height-large:         1.3333333; // extra decimals for Win 8.1 Chrome
-@line-height-small:         1.5;
-
-@border-radius-base:        4px;
-@border-radius-large:       6px;
-@border-radius-small:       3px;
-
-//** Global color for active items (e.g., navs or dropdowns).
-@component-active-color:    #fff;
-//** Global background color for active items (e.g., navs or dropdowns).
-@component-active-bg:       @brand-primary;
-
-//** Width of the `border` for generating carets that indicate dropdowns.
-@caret-width-base:          4px;
-//** Carets increase slightly in size for larger components.
-@caret-width-large:         5px;
-
-
-//== Tables
-//
-//## Customizes the `.table` component with basic values, each used across all table variations.
-
-//** Padding for `<th>`s and `<td>`s.
-@table-cell-padding:            8px;
-//** Padding for cells in `.table-condensed`.
-@table-condensed-cell-padding:  5px;
-
-//** Default background color used for all tables.
-@table-bg:                      transparent;
-//** Background color used for `.table-striped`.
-@table-bg-accent:               #f9f9f9;
-//** Background color used for `.table-hover`.
-@table-bg-hover:                #f5f5f5;
-@table-bg-active:               @table-bg-hover;
-
-//** Border color for table and cell borders.
-@table-border-color:            #ddd;
-
-
-//== Buttons
-//
-//## For each of Bootstrap's buttons, define text, background and border color.
-
-@btn-font-weight:                normal;
-
-@btn-default-color:              #333;
-@btn-default-bg:                 #fff;
-@btn-default-border:             #ccc;
-
-@btn-primary-color:              #fff;
-@btn-primary-bg:                 @brand-primary;
-@btn-primary-border:             darken(@btn-primary-bg, 5%);
-
-@btn-success-color:              #fff;
-@btn-success-bg:                 @brand-success;
-@btn-success-border:             darken(@btn-success-bg, 5%);
-
-@btn-info-color:                 #fff;
-@btn-info-bg:                    @brand-info;
-@btn-info-border:                darken(@btn-info-bg, 5%);
-
-@btn-warning-color:              #fff;
-@btn-warning-bg:                 @brand-warning;
-@btn-warning-border:             darken(@btn-warning-bg, 5%);
-
-@btn-danger-color:               #fff;
-@btn-danger-bg:                  @brand-danger;
-@btn-danger-border:              darken(@btn-danger-bg, 5%);
-
-@btn-link-disabled-color:        @gray-light;
-
-// Allows for customizing button radius independently from global border radius
-@btn-border-radius-base:         @border-radius-base;
-@btn-border-radius-large:        @border-radius-large;
-@btn-border-radius-small:        @border-radius-small;
-
-
-//== Forms
-//
-//##
-
-//** `<input>` background color
-@input-bg:                       #fff;
-//** `<input disabled>` background color
-@input-bg-disabled:              @gray-lighter;
-
-//** Text color for `<input>`s
-@input-color:                    @gray;
-//** `<input>` border color
-@input-border:                   #ccc;
-
-// TODO: Rename `@input-border-radius` to `@input-border-radius-base` in v4
-//** Default `.form-control` border radius
-// This has no effect on `<select>`s in some browsers, due to the limited stylability of `<select>`s in CSS.
-@input-border-radius:            @border-radius-base;
-//** Large `.form-control` border radius
-@input-border-radius-large:      @border-radius-large;
-//** Small `.form-control` border radius
-@input-border-radius-small:      @border-radius-small;
-
-//** Border color for inputs on focus
-@input-border-focus:             #66afe9;
-
-//** Placeholder text color
-@input-color-placeholder:        #999;
-
-//** Default `.form-control` height
-@input-height-base:              (@line-height-computed + (@padding-base-vertical * 2) + 2);
-//** Large `.form-control` height
-@input-height-large:             (ceil(@font-size-large * @line-height-large) + (@padding-large-vertical * 2) + 2);
-//** Small `.form-control` height
-@input-height-small:             (floor(@font-size-small * @line-height-small) + (@padding-small-vertical * 2) + 2);
-
-//** `.form-group` margin
-@form-group-margin-bottom:       15px;
-
-@legend-color:                   @gray-dark;
-@legend-border-color:            #e5e5e5;
-
-//** Background color for textual input addons
-@input-group-addon-bg:           @gray-lighter;
-//** Border color for textual input addons
-@input-group-addon-border-color: @input-border;
-
-//** Disabled cursor for form controls and buttons.
-@cursor-disabled:                not-allowed;
-
-
-//== Dropdowns
-//
-//## Dropdown menu container and contents.
-
-//** Background for the dropdown menu.
-@dropdown-bg:                    #fff;
-//** Dropdown menu `border-color`.
-@dropdown-border:                rgba(0,0,0,.15);
-//** Dropdown menu `border-color` **for IE8**.
-@dropdown-fallback-border:       #ccc;
-//** Divider color for between dropdown items.
-@dropdown-divider-bg:            #e5e5e5;
-
-//** Dropdown link text color.
-@dropdown-link-color:            @gray-dark;
-//** Hover color for dropdown links.
-@dropdown-link-hover-color:      darken(@gray-dark, 5%);
-//** Hover background for dropdown links.
-@dropdown-link-hover-bg:         #f5f5f5;
-
-//** Active dropdown menu item text color.
-@dropdown-link-active-color:     @component-active-color;
-//** Active dropdown menu item background color.
-@dropdown-link-active-bg:        @component-active-bg;
-
-//** Disabled dropdown menu item background color.
-@dropdown-link-disabled-color:   @gray-light;
-
-//** Text color for headers within dropdown menus.
-@dropdown-header-color:          @gray-light;
-
-//** Deprecated `@dropdown-caret-color` as of v3.1.0
-@dropdown-caret-color:           #000;
-
-
-//-- Z-index master list
-//
-// Warning: Avoid customizing these values. They're used for a bird's eye view
-// of components dependent on the z-axis and are designed to all work together.
-//
-// Note: These variables are not generated into the Customizer.
-
-@zindex-navbar:            1000;
-@zindex-dropdown:          1000;
-@zindex-popover:           1060;
-@zindex-tooltip:           1070;
-@zindex-navbar-fixed:      1030;
-@zindex-modal-background:  1040;
-@zindex-modal:             1050;
-
-
-//== Media queries breakpoints
-//
-//## Define the breakpoints at which your layout will change, adapting to different screen sizes.
-
-// Extra small screen / phone
-//** Deprecated `@screen-xs` as of v3.0.1
-@screen-xs:                  480px;
-//** Deprecated `@screen-xs-min` as of v3.2.0
-@screen-xs-min:              @screen-xs;
-//** Deprecated `@screen-phone` as of v3.0.1
-@screen-phone:               @screen-xs-min;
-
-// Small screen / tablet
-//** Deprecated `@screen-sm` as of v3.0.1
-@screen-sm:                  768px;
-@screen-sm-min:              @screen-sm;
-//** Deprecated `@screen-tablet` as of v3.0.1
-@screen-tablet:              @screen-sm-min;
-
-// Medium screen / desktop
-//** Deprecated `@screen-md` as of v3.0.1
-@screen-md:                  992px;
-@screen-md-min:              @screen-md;
-//** Deprecated `@screen-desktop` as of v3.0.1
-@screen-desktop:             @screen-md-min;
-
-// Large screen / wide desktop
-//** Deprecated `@screen-lg` as of v3.0.1
-@screen-lg:                  1200px;
-@screen-lg-min:              @screen-lg;
-//** Deprecated `@screen-lg-desktop` as of v3.0.1
-@screen-lg-desktop:          @screen-lg-min;
-
-// So media queries don't overlap when required, provide a maximum
-@screen-xs-max:              (@screen-sm-min - 1);
-@screen-sm-max:              (@screen-md-min - 1);
-@screen-md-max:              (@screen-lg-min - 1);
-
-
-//== Grid system
-//
-//## Define your custom responsive grid.
-
-//** Number of columns in the grid.
-@grid-columns:              12;
-//** Padding between columns. Gets divided in half for the left and right.
-@grid-gutter-width:         30px;
-// Navbar collapse
-//** Point at which the navbar becomes uncollapsed.
-@grid-float-breakpoint:     @screen-sm-min;
-//** Point at which the navbar begins collapsing.
-@grid-float-breakpoint-max: (@grid-float-breakpoint - 1);
-
-
-//== Container sizes
-//
-//## Define the maximum width of `.container` for different screen sizes.
-
-// Small screen / tablet
-@container-tablet:             (720px + @grid-gutter-width);
-//** For `@screen-sm-min` and up.
-@container-sm:                 @container-tablet;
-
-// Medium screen / desktop
-@container-desktop:            (940px + @grid-gutter-width);
-//** For `@screen-md-min` and up.
-@container-md:                 @container-desktop;
-
-// Large screen / wide desktop
-@container-large-desktop:      (1140px + @grid-gutter-width);
-//** For `@screen-lg-min` and up.
-@container-lg:                 @container-large-desktop;
-
-
-//== Navbar
-//
-//##
-
-// Basics of a navbar
-@navbar-height:                    50px;
-@navbar-margin-bottom:             @line-height-computed;
-@navbar-border-radius:             0; // Nick @border-radius-base;
-@navbar-padding-horizontal:        0; // Nick floor((@grid-gutter-width / 2));
-@navbar-padding-vertical:          ((@navbar-height - @line-height-computed) / 2);
-@navbar-collapse-max-height:       340px;
-
-@navbar-default-color:             #fff; // Nick #777;
-@navbar-default-bg:                #0a0; // Nick #f8f8f8;
-@navbar-default-border:            darken(@navbar-default-bg, 6.5%);
-
-// Navbar links
-@navbar-default-link-color:                #fff; // Nick #777;
-@navbar-default-link-hover-color:          #000; // Nick #333;
-@navbar-default-link-hover-bg:             #ccc; // Nick transparent;
-@navbar-default-link-active-color:         #fff; // Nick #555;
-@navbar-default-link-active-bg:            darken(@navbar-default-bg, 6.5%);
-@navbar-default-link-disabled-color:       #ccc;
-@navbar-default-link-disabled-bg:          transparent;
-
-// Navbar brand label
-@navbar-default-brand-color:               @navbar-default-link-color;
-@navbar-default-brand-hover-color:         darken(@navbar-default-brand-color, 10%);
-@navbar-default-brand-hover-bg:            transparent;
-
-// Navbar toggle
-@navbar-default-toggle-hover-bg:           #ddd;
-@navbar-default-toggle-icon-bar-bg:        #888;
-@navbar-default-toggle-border-color:       #ddd;
-
-
-//=== Inverted navbar
-// Reset inverted navbar basics
-@navbar-inverse-color:                      lighten(@gray-light, 15%);
-@navbar-inverse-bg:                         #222;
-@navbar-inverse-border:                     darken(@navbar-inverse-bg, 10%);
-
-// Inverted navbar links
-@navbar-inverse-link-color:                 lighten(@gray-light, 15%);
-@navbar-inverse-link-hover-color:           #fff;
-@navbar-inverse-link-hover-bg:              transparent;
-@navbar-inverse-link-active-color:          @navbar-inverse-link-hover-color;
-@navbar-inverse-link-active-bg:             darken(@navbar-inverse-bg, 10%);
-@navbar-inverse-link-disabled-color:        #444;
-@navbar-inverse-link-disabled-bg:           transparent;
-
-// Inverted navbar brand label
-@navbar-inverse-brand-color:                @navbar-inverse-link-color;
-@navbar-inverse-brand-hover-color:          #fff;
-@navbar-inverse-brand-hover-bg:             transparent;
-
-// Inverted navbar toggle
-@navbar-inverse-toggle-hover-bg:            #333;
-@navbar-inverse-toggle-icon-bar-bg:         #fff;
-@navbar-inverse-toggle-border-color:        #333;
-
-
-//== Navs
-//
-//##
-
-//=== Shared nav styles
-@nav-link-padding:                          10px 15px;
-@nav-link-hover-bg:                         @gray-lighter;
-
-@nav-disabled-link-color:                   @gray-light;
-@nav-disabled-link-hover-color:             @gray-light;
-
-//== Tabs
-@nav-tabs-border-color:                     #ddd;
-
-@nav-tabs-link-hover-border-color:          @gray-lighter;
-
-@nav-tabs-active-link-hover-bg:             @body-bg;
-@nav-tabs-active-link-hover-color:          @gray;
-@nav-tabs-active-link-hover-border-color:   #ddd;
-
-@nav-tabs-justified-link-border-color:            #ddd;
-@nav-tabs-justified-active-link-border-color:     @body-bg;
-
-//== Pills
-@nav-pills-border-radius:                   @border-radius-base;
-@nav-pills-active-link-hover-bg:            @component-active-bg;
-@nav-pills-active-link-hover-color:         @component-active-color;
-
-
-//== Pagination
-//
-//##
-
-@pagination-color:                     @link-color;
-@pagination-bg:                        #fff;
-@pagination-border:                    #ddd;
-
-@pagination-hover-color:               @link-hover-color;
-@pagination-hover-bg:                  @gray-lighter;
-@pagination-hover-border:              #ddd;
-
-@pagination-active-color:              #fff;
-@pagination-active-bg:                 @brand-primary;
-@pagination-active-border:             @brand-primary;
-
-@pagination-disabled-color:            @gray-light;
-@pagination-disabled-bg:               #fff;
-@pagination-disabled-border:           #ddd;
-
-
-//== Pager
-//
-//##
-
-@pager-bg:                             @pagination-bg;
-@pager-border:                         @pagination-border;
-@pager-border-radius:                  15px;
-
-@pager-hover-bg:                       @pagination-hover-bg;
-
-@pager-active-bg:                      @pagination-active-bg;
-@pager-active-color:                   @pagination-active-color;
-
-@pager-disabled-color:                 @pagination-disabled-color;
-
-
-//== Jumbotron
-//
-//##
-
-@jumbotron-padding:              30px;
-@jumbotron-color:                inherit;
-@jumbotron-bg:                   @gray-lighter;
-@jumbotron-heading-color:        inherit;
-@jumbotron-font-size:            ceil((@font-size-base * 1.5));
-@jumbotron-heading-font-size:    ceil((@font-size-base * 4.5));
-
-
-//== Form states and alerts
-//
-//## Define colors for form feedback states and, by default, alerts.
-
-@state-success-text:             #3c763d;
-@state-success-bg:               #dff0d8;
-@state-success-border:           darken(spin(@state-success-bg, -10), 5%);
-
-@state-info-text:                #31708f;
-@state-info-bg:                  #d9edf7;
-@state-info-border:              darken(spin(@state-info-bg, -10), 7%);
-
-@state-warning-text:             #8a6d3b;
-@state-warning-bg:               #fcf8e3;
-@state-warning-border:           darken(spin(@state-warning-bg, -10), 5%);
-
-@state-danger-text:              #a94442;
-@state-danger-bg:                #f2dede;
-@state-danger-border:            darken(spin(@state-danger-bg, -10), 5%);
-
-
-//== Tooltips
-//
-//##
-
-//** Tooltip max width
-@tooltip-max-width:           200px;
-//** Tooltip text color
-@tooltip-color:               #fff;
-//** Tooltip background color
-@tooltip-bg:                  #000;
-@tooltip-opacity:             .9;
-
-//** Tooltip arrow width
-@tooltip-arrow-width:         5px;
-//** Tooltip arrow color
-@tooltip-arrow-color:         @tooltip-bg;
-
-
-//== Popovers
-//
-//##
-
-//** Popover body background color
-@popover-bg:                          #fff;
-//** Popover maximum width
-@popover-max-width:                   276px;
-//** Popover border color
-@popover-border-color:                rgba(0,0,0,.2);
-//** Popover fallback border color
-@popover-fallback-border-color:       #ccc;
-
-//** Popover title background color
-@popover-title-bg:                    darken(@popover-bg, 3%);
-
-//** Popover arrow width
-@popover-arrow-width:                 10px;
-//** Popover arrow color
-@popover-arrow-color:                 @popover-bg;
-
-//** Popover outer arrow width
-@popover-arrow-outer-width:           (@popover-arrow-width + 1);
-//** Popover outer arrow color
-@popover-arrow-outer-color:           fadein(@popover-border-color, 5%);
-//** Popover outer arrow fallback color
-@popover-arrow-outer-fallback-color:  darken(@popover-fallback-border-color, 20%);
-
-
-//== Labels
-//
-//##
-
-//** Default label background color
-@label-default-bg:            @gray-light;
-//** Primary label background color
-@label-primary-bg:            @brand-primary;
-//** Success label background color
-@label-success-bg:            @brand-success;
-//** Info label background color
-@label-info-bg:               @brand-info;
-//** Warning label background color
-@label-warning-bg:            @brand-warning;
-//** Danger label background color
-@label-danger-bg:             @brand-danger;
-
-//** Default label text color
-@label-color:                 #fff;
-//** Default text color of a linked label
-@label-link-hover-color:      #fff;
-
-
-//== Modals
-//
-//##
-
-@modal-border-radius:         @border-radius-base; // Nick @border-radius-large;
-
-//** Padding applied to the modal body
-@modal-inner-padding:         10px; // Nick 15px;
-
-//** Padding applied to the modal title
-@modal-title-padding:         10px; // Nick 15px;
-//** Modal title line-height
-@modal-title-line-height:     @line-height-base;
-
-//** Background color of modal content area
-@modal-content-bg:                             #fff;
-//** Modal content border color
-@modal-content-border-color:                   rgba(0,0,0,.2);
-//** Modal content border color **for IE8**
-@modal-content-fallback-border-color:          #999;
-
-//** Modal backdrop background color
-@modal-backdrop-bg:           #000;
-//** Modal backdrop opacity
-@modal-backdrop-opacity:      .5;
-//** Modal header border color
-@modal-header-border-color:   #e5e5e5;
-//** Modal footer border color
-@modal-footer-border-color:   @modal-header-border-color;
-
-@modal-lg:                    900px;
-@modal-md:                    600px;
-@modal-sm:                    300px;
-
-
-//== Alerts
-//
-//## Define alert colors, border radius, and padding.
-
-@alert-padding:               15px;
-@alert-border-radius:         @border-radius-base;
-@alert-link-font-weight:      bold;
-
-@alert-success-bg:            @state-success-bg;
-@alert-success-text:          @state-success-text;
-@alert-success-border:        @state-success-border;
-
-@alert-info-bg:               @state-info-bg;
-@alert-info-text:             @state-info-text;
-@alert-info-border:           @state-info-border;
-
-@alert-warning-bg:            @state-warning-bg;
-@alert-warning-text:          @state-warning-text;
-@alert-warning-border:        @state-warning-border;
-
-@alert-danger-bg:             @state-danger-bg;
-@alert-danger-text:           @state-danger-text;
-@alert-danger-border:         @state-danger-border;
-
-
-//== Progress bars
-//
-//##
-
-//** Background color of the whole progress component
-@progress-bg:                 #f5f5f5;
-//** Progress bar text color
-@progress-bar-color:          #fff;
-//** Variable for setting rounded corners on progress bar.
-@progress-border-radius:      @border-radius-base;
-
-//** Default progress bar color
-@progress-bar-bg:             @brand-primary;
-//** Success progress bar color
-@progress-bar-success-bg:     @brand-success;
-//** Warning progress bar color
-@progress-bar-warning-bg:     @brand-warning;
-//** Danger progress bar color
-@progress-bar-danger-bg:      @brand-danger;
-//** Info progress bar color
-@progress-bar-info-bg:        @brand-info;
-
-
-//== List group
-//
-//##
-
-//** Background color on `.list-group-item`
-@list-group-bg:                 #fff;
-//** `.list-group-item` border color
-@list-group-border:             #ddd;
-//** List group border radius
-@list-group-border-radius:      @border-radius-base;
-
-//** Background color of single list items on hover
-@list-group-hover-bg:           #f5f5f5;
-//** Text color of active list items
-@list-group-active-color:       @component-active-color;
-//** Background color of active list items
-@list-group-active-bg:          @component-active-bg;
-//** Border color of active list elements
-@list-group-active-border:      @list-group-active-bg;
-//** Text color for content within active list items
-@list-group-active-text-color:  lighten(@list-group-active-bg, 40%);
-
-//** Text color of disabled list items
-@list-group-disabled-color:      @gray-light;
-//** Background color of disabled list items
-@list-group-disabled-bg:         @gray-lighter;
-//** Text color for content within disabled list items
-@list-group-disabled-text-color: @list-group-disabled-color;
-
-@list-group-link-color:         #555;
-@list-group-link-hover-color:   @list-group-link-color;
-@list-group-link-heading-color: #333;
-
-
-//== Panels
-//
-//##
-
-@panel-bg:                    #fff;
-@panel-body-padding:          15px;
-@panel-heading-padding:       10px 15px;
-@panel-footer-padding:        @panel-heading-padding;
-@panel-border-radius:         @border-radius-base;
-
-//** Border color for elements within panels
-@panel-inner-border:          #ddd;
-@panel-footer-bg:             #f5f5f5;
-
-@panel-default-text:          @gray-dark;
-@panel-default-border:        #ddd;
-@panel-default-heading-bg:    #f5f5f5;
-
-@panel-primary-text:          #fff;
-@panel-primary-border:        @brand-primary;
-@panel-primary-heading-bg:    @brand-primary;
-
-@panel-success-text:          @state-success-text;
-@panel-success-border:        @state-success-border;
-@panel-success-heading-bg:    @state-success-bg;
-
-@panel-info-text:             @state-info-text;
-@panel-info-border:           @state-info-border;
-@panel-info-heading-bg:       @state-info-bg;
-
-@panel-warning-text:          @state-warning-text;
-@panel-warning-border:        @state-warning-border;
-@panel-warning-heading-bg:    @state-warning-bg;
-
-@panel-danger-text:           @state-danger-text;
-@panel-danger-border:         @state-danger-border;
-@panel-danger-heading-bg:     @state-danger-bg;
-
-
-//== Thumbnails
-//
-//##
-
-//** Padding around the thumbnail image
-@thumbnail-padding:           4px;
-//** Thumbnail background color
-@thumbnail-bg:                @body-bg;
-//** Thumbnail border color
-@thumbnail-border:            #ddd;
-//** Thumbnail border radius
-@thumbnail-border-radius:     @border-radius-base;
-
-//** Custom text color for thumbnail captions
-@thumbnail-caption-color:     @text-color;
-//** Padding around the thumbnail caption
-@thumbnail-caption-padding:   9px;
-
-
-//== Wells
-//
-//##
-
-@well-bg:                     #f5f5f5;
-@well-border:                 darken(@well-bg, 7%);
-
-
-//== Badges
-//
-//##
-
-@badge-color:                 #fff;
-//** Linked badge text color on hover
-@badge-link-hover-color:      #fff;
-@badge-bg:                    @gray-light;
-
-//** Badge text color in active nav link
-@badge-active-color:          @link-color;
-//** Badge background color in active nav link
-@badge-active-bg:             #fff;
-
-@badge-font-weight:           bold;
-@badge-line-height:           1;
-@badge-border-radius:         10px;
-
-
-//== Breadcrumbs
-//
-//##
-
-@breadcrumb-padding-vertical:   8px;
-@breadcrumb-padding-horizontal: 15px;
-//** Breadcrumb background color
-@breadcrumb-bg:                 #f5f5f5;
-//** Breadcrumb text color
-@breadcrumb-color:              #ccc;
-//** Text color of current page in the breadcrumb
-@breadcrumb-active-color:       @gray-light;
-//** Textual separator for between breadcrumb elements
-@breadcrumb-separator:          "/";
-
-
-//== Carousel
-//
-//##
-
-@carousel-text-shadow:                        0 1px 2px rgba(0,0,0,.6);
-
-@carousel-control-color:                      #fff;
-@carousel-control-width:                      15%;
-@carousel-control-opacity:                    .5;
-@carousel-control-font-size:                  20px;
-
-@carousel-indicator-active-bg:                #fff;
-@carousel-indicator-border-color:             #fff;
-
-@carousel-caption-color:                      #fff;
-
-
-//== Close
-//
-//##
-
-@close-font-weight:           bold;
-@close-color:                 #000;
-@close-text-shadow:           0 1px 0 #fff;
-
-
-//== Code
-//
-//##
-
-@code-color:                  darken(@brand-success, 5%); //#c7254e;
-//@code-bg:                     #f9f2f4;
-
-@kbd-color:                   #fff;
-@kbd-bg:                      #333;
-
-//@pre-bg:                      #f5f5f5;
-@pre-color:                   @gray-dark;
-@pre-border-color:            #ccc;
-@pre-scrollable-max-height:   340px;
-
-
-//== Type
-//
-//##
-
-//** Horizontal offset for forms and lists.
-@component-offset-horizontal: 180px;
-//** Text muted color
-@text-muted:                  @gray-light;
-//** Abbreviations and acronyms border color
-@abbr-border-color:           @gray-light;
-//** Headings small color
-@headings-small-color:        @gray-light;
-//** Blockquote small color
-@blockquote-small-color:      @gray-light;
-//** Blockquote font size
-@blockquote-font-size:        (@font-size-base * 1.25);
-//** Blockquote border color
-@blockquote-border-color:     @gray-lighter;
-//** Page header border color
-@page-header-border-color:    @gray-lighter;
-//** Width of horizontal description list titles
-@dl-horizontal-offset:        @component-offset-horizontal;
-//** Point at which .dl-horizontal becomes horizontal
-@dl-horizontal-breakpoint:    @grid-float-breakpoint;
-//** Horizontal line color.
-@hr-border:                   @gray-lighter;
diff --git a/css/bootstrap/vendor/_rfs.scss b/css/bootstrap/vendor/_rfs.scss
new file mode 100644
index 0000000..e453f44
--- /dev/null
+++ b/css/bootstrap/vendor/_rfs.scss
@@ -0,0 +1,228 @@
+// stylelint-disable property-blacklist, scss/dollar-variable-default
+
+// SCSS RFS mixin
+//
+// Automated responsive font sizes
+//
+// Licensed under MIT (https://github.com/twbs/rfs/blob/v8.x/LICENSE)
+
+// Configuration
+
+// Base font size
+$rfs-base-font-size: 1.25rem !default;
+$rfs-font-size-unit: rem !default;
+
+@if $rfs-font-size-unit != rem and $rfs-font-size-unit != px {
+  @error "`#{$rfs-font-size-unit}` is not a valid unit for $rfs-font-size-unit. Use `px` or `rem`.";
+}
+
+// Breakpoint at where font-size starts decreasing if screen width is smaller
+$rfs-breakpoint: 1200px !default;
+$rfs-breakpoint-unit: px !default;
+
+@if $rfs-breakpoint-unit != px and $rfs-breakpoint-unit != em and $rfs-breakpoint-unit != rem {
+  @error "`#{$rfs-breakpoint-unit}` is not a valid unit for $rfs-breakpoint-unit. Use `px`, `em` or `rem`.";
+}
+
+// Resize font size based on screen height and width
+$rfs-two-dimensional: false !default;
+
+// Factor of decrease
+$rfs-factor: 10 !default;
+
+@if type-of($rfs-factor) != "number" or $rfs-factor <= 1 {
+  @error "`#{$rfs-factor}` is not a valid  $rfs-factor, it must be greater than 1.";
+}
+
+// Generate enable or disable classes. Possibilities: false, "enable" or "disable"
+$rfs-class: false !default;
+
+// 1 rem = $rfs-rem-value px
+$rfs-rem-value: 16 !default;
+
+// Safari iframe resize bug: https://github.com/twbs/rfs/issues/14
+$rfs-safari-iframe-resize-bug-fix: false !default;
+
+// Disable RFS by setting $enable-responsive-font-sizes to false
+$enable-responsive-font-sizes: true !default;
+
+// Cache $rfs-base-font-size unit
+$rfs-base-font-size-unit: unit($rfs-base-font-size);
+
+@function divide($dividend, $divisor, $precision: 10) {
+  $sign: if($dividend > 0 and $divisor > 0 or $dividend < 0 and $divisor < 0, 1, -1);
+  $dividend: abs($dividend);
+  $divisor: abs($divisor);
+  @if $dividend == 0 {
+    @return 0;
+  }
+  @if $divisor == 0 {
+    @error "Cannot divide by 0";
+  }
+  $remainder: $dividend;
+  $result: 0;
+  $factor: 10;
+  @while ($remainder > 0 and $precision >= 0) {
+    $quotient: 0;
+    @while ($remainder >= $divisor) {
+      $remainder: $remainder - $divisor;
+      $quotient: $quotient + 1;
+    }
+    $result: $result * 10 + $quotient;
+    $factor: $factor * .1;
+    $remainder: $remainder * 10;
+    $precision: $precision - 1;
+    @if ($precision < 0 and $remainder >= $divisor * 5) {
+      $result: $result + 1;
+    }
+  }
+  $result: $result * $factor * $sign;
+  $dividend-unit: unit($dividend);
+  $divisor-unit: unit($divisor);
+  $unit-map: (
+    "px": 1px,
+    "rem": 1rem,
+    "em": 1em,
+    "%": 1%
+  );
+  @if ($dividend-unit != $divisor-unit and map-has-key($unit-map, $dividend-unit)) {
+    $result: $result * map-get($unit-map, $dividend-unit);
+  }
+  @return $result;
+}
+
+// Remove px-unit from $rfs-base-font-size for calculations
+@if $rfs-base-font-size-unit == "px" {
+  $rfs-base-font-size: divide($rfs-base-font-size, $rfs-base-font-size * 0 + 1);
+}
+@else if $rfs-base-font-size-unit == "rem" {
+  $rfs-base-font-size: divide($rfs-base-font-size, divide($rfs-base-font-size * 0 + 1, $rfs-rem-value));
+}
+
+// Cache $rfs-breakpoint unit to prevent multiple calls
+$rfs-breakpoint-unit-cache: unit($rfs-breakpoint);
+
+// Remove unit from $rfs-breakpoint for calculations
+@if $rfs-breakpoint-unit-cache == "px" {
+  $rfs-breakpoint: divide($rfs-breakpoint, $rfs-breakpoint * 0 + 1);
+}
+@else if $rfs-breakpoint-unit-cache == "rem" or $rfs-breakpoint-unit-cache == "em" {
+  $rfs-breakpoint: divide($rfs-breakpoint, divide($rfs-breakpoint * 0 + 1, $rfs-rem-value));
+}
+
+// Internal mixin that adds disable classes to the selector if needed.
+@mixin _rfs-disable-class {
+  @if $rfs-class == "disable" {
+    // Adding an extra class increases specificity, which prevents the media query to override the font size
+    &,
+    .disable-responsive-font-size &,
+    &.disable-responsive-font-size {
+      @content;
+    }
+  }
+  @else {
+    @content;
+  }
+}
+
+// Internal mixin that adds enable classes to the selector if needed.
+@mixin _rfs-enable-class {
+  @if $rfs-class == "enable" {
+    .enable-responsive-font-size &,
+    &.enable-responsive-font-size {
+      @content;
+    }
+  }
+  @else {
+    @content;
+  }
+}
+
+// Internal mixin used to determine which media query needs to be used
+@mixin _rfs-media-query($mq-value) {
+  @if $rfs-two-dimensional {
+    @media (max-width: #{$mq-value}), (max-height: #{$mq-value}) {
+      @content;
+    }
+  }
+  @else {
+    @media (max-width: #{$mq-value}) {
+      @content;
+    }
+  }
+}
+
+// Responsive font size mixin
+@mixin rfs($fs, $important: false) {
+  // Cache $fs unit
+  $fs-unit: if(type-of($fs) == "number", unit($fs), false);
+
+  // Add !important suffix if needed
+  $rfs-suffix: if($important, " !important", "");
+
+  // If $fs isn't a number (like inherit) or $fs has a unit (not px or rem, like 1.5em) or $ is 0, just print the value
+  @if not $fs-unit or $fs-unit != "" and $fs-unit != "px" and $fs-unit != "rem" or $fs == 0 {
+    font-size: #{$fs}#{$rfs-suffix};
+  }
+  @else {
+    // Remove unit from $fs for calculations
+    @if $fs-unit == "px" {
+      $fs: divide($fs, $fs * 0 + 1);
+    }
+    @else if $fs-unit == "rem" {
+      $fs: divide($fs, divide($fs * 0 + 1, $rfs-rem-value));
+    }
+
+    // Set default font size
+    $rfs-static: if($rfs-font-size-unit == rem, #{divide($fs, $rfs-rem-value)}rem, #{$fs}px);
+
+    // Only add the media query if the font size is bigger than the minimum font size
+    @if $fs <= $rfs-base-font-size or not $enable-responsive-font-sizes {
+      font-size: #{$rfs-static}#{$rfs-suffix};
+    }
+    @else {
+      // Calculate the minimum font size for $fs
+      $fs-min: $rfs-base-font-size + divide($fs - $rfs-base-font-size, $rfs-factor);
+
+      // Calculate difference between $fs and the minimum font size
+      $fs-diff: $fs - $fs-min;
+
+      // Base font-size formatting
+      $min-width: if($rfs-font-size-unit == rem, #{divide($fs-min, $rfs-rem-value)}rem, #{$fs-min}px);
+
+      // Use `vmin` if two-dimensional is enabled
+      $variable-unit: if($rfs-two-dimensional, vmin, vw);
+
+      // Calculate the variable width between 0 and $rfs-breakpoint
+      $variable-width: #{divide($fs-diff * 100, $rfs-breakpoint)}#{$variable-unit};
+
+      // Set the calculated font-size
+      $rfs-fluid: calc(#{$min-width} + #{$variable-width}) #{$rfs-suffix};
+
+      // Breakpoint formatting
+      $mq-value: if($rfs-breakpoint-unit == px, #{$rfs-breakpoint}px, #{divide($rfs-breakpoint, $rfs-rem-value)}#{$rfs-breakpoint-unit});
+
+      @include _rfs-disable-class {
+        font-size: #{$rfs-static}#{$rfs-suffix};
+      }
+
+      @include _rfs-media-query($mq-value) {
+        @include _rfs-enable-class {
+          font-size: $rfs-fluid;
+        }
+
+        // Include safari iframe resize fix if needed
+        min-width: if($rfs-safari-iframe-resize-bug-fix, (0 * 1vw), null);
+      }
+    }
+  }
+}
+
+// The font-size & responsive-font-size mixins use RFS to rescale the font size
+@mixin font-size($fs, $important: false) {
+  @include rfs($fs, $important);
+}
+
+@mixin responsive-font-size($fs, $important: false) {
+  @include rfs($fs, $important);
+}
diff --git a/css/bootstrap/wells.less b/css/bootstrap/wells.less
deleted file mode 100644
index 15d072b..0000000
--- a/css/bootstrap/wells.less
+++ /dev/null
@@ -1,29 +0,0 @@
-//
-// Wells
-// --------------------------------------------------
-
-
-// Base class
-.well {
-  min-height: 20px;
-  padding: 19px;
-  margin-bottom: 20px;
-  background-color: @well-bg;
-  border: 1px solid @well-border;
-  border-radius: @border-radius-base;
-  .box-shadow(inset 0 1px 1px rgba(0,0,0,.05));
-  blockquote {
-    border-color: #ddd;
-    border-color: rgba(0,0,0,.15);
-  }
-}
-
-// Sizes
-.well-lg {
-  padding: 24px;
-  border-radius: @border-radius-large;
-}
-.well-sm {
-  padding: 9px;
-  border-radius: @border-radius-small;
-}
diff --git a/js/bootstrap.js.min b/js/bootstrap.js.min
deleted file mode 100644
index 8a2e99a..0000000
--- a/js/bootstrap.js.min
+++ /dev/null
@@ -1,2377 +0,0 @@
-/*!
- * Bootstrap v3.3.7 (http://getbootstrap.com)
- * Copyright 2011-2016 Twitter, Inc.
- * Licensed under the MIT license
- */
-
-if (typeof jQuery === 'undefined') {
-  throw new Error('Bootstrap\'s JavaScript requires jQuery')
-}
-
-+function ($) {
-  'use strict';
-  var version = $.fn.jquery.split(' ')[0].split('.')
-  if ((version[0] < 2 && version[1] < 9) || (version[0] == 1 && version[1] == 9 && version[2] < 1) || (version[0] > 3)) {
-    throw new Error('Bootstrap\'s JavaScript requires jQuery version 1.9.1 or higher, but lower than version 4')
-  }
-}(jQuery);
-
-/* ========================================================================
- * Bootstrap: transition.js v3.3.7
- * http://getbootstrap.com/javascript/#transitions
- * ========================================================================
- * Copyright 2011-2016 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- * ======================================================================== */
-
-
-+function ($) {
-  'use strict';
-
-  // CSS TRANSITION SUPPORT (Shoutout: http://www.modernizr.com/)
-  // ============================================================
-
-  function transitionEnd() {
-    var el = document.createElement('bootstrap')
-
-    var transEndEventNames = {
-      WebkitTransition : 'webkitTransitionEnd',
-      MozTransition    : 'transitionend',
-      OTransition      : 'oTransitionEnd otransitionend',
-      transition       : 'transitionend'
-    }
-
-    for (var name in transEndEventNames) {
-      if (el.style[name] !== undefined) {
-        return { end: transEndEventNames[name] }
-      }
-    }
-
-    return false // explicit for ie8 (  ._.)
-  }
-
-  // http://blog.alexmaccaw.com/css-transitions
-  $.fn.emulateTransitionEnd = function (duration) {
-    var called = false
-    var $el = this
-    $(this).one('bsTransitionEnd', function () { called = true })
-    var callback = function () { if (!called) $($el).trigger($.support.transition.end) }
-    setTimeout(callback, duration)
-    return this
-  }
-
-  $(function () {
-    $.support.transition = transitionEnd()
-
-    if (!$.support.transition) return
-
-    $.event.special.bsTransitionEnd = {
-      bindType: $.support.transition.end,
-      delegateType: $.support.transition.end,
-      handle: function (e) {
-        if ($(e.target).is(this)) return e.handleObj.handler.apply(this, arguments)
-      }
-    }
-  })
-
-}(jQuery);
-
-/* ========================================================================
- * Bootstrap: alert.js v3.3.7
- * http://getbootstrap.com/javascript/#alerts
- * ========================================================================
- * Copyright 2011-2016 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- * ======================================================================== */
-
-
-+function ($) {
-  'use strict';
-
-  // ALERT CLASS DEFINITION
-  // ======================
-
-  var dismiss = '[data-dismiss="alert"]'
-  var Alert   = function (el) {
-    $(el).on('click', dismiss, this.close)
-  }
-
-  Alert.VERSION = '3.3.7'
-
-  Alert.TRANSITION_DURATION = 150
-
-  Alert.prototype.close = function (e) {
-    var $this    = $(this)
-    var selector = $this.attr('data-target')
-
-    if (!selector) {
-      selector = $this.attr('href')
-      selector = selector && selector.replace(/.*(?=#[^\s]*$)/, '') // strip for ie7
-    }
-
-    var $parent = $(selector === '#' ? [] : selector)
-
-    if (e) e.preventDefault()
-
-    if (!$parent.length) {
-      $parent = $this.closest('.alert')
-    }
-
-    $parent.trigger(e = $.Event('close.bs.alert'))
-
-    if (e.isDefaultPrevented()) return
-
-    $parent.removeClass('in')
-
-    function removeElement() {
-      // detach from parent, fire event then clean up data
-      $parent.detach().trigger('closed.bs.alert').remove()
-    }
-
-    $.support.transition && $parent.hasClass('fade') ?
-      $parent
-        .one('bsTransitionEnd', removeElement)
-        .emulateTransitionEnd(Alert.TRANSITION_DURATION) :
-      removeElement()
-  }
-
-
-  // ALERT PLUGIN DEFINITION
-  // =======================
-
-  function Plugin(option) {
-    return this.each(function () {
-      var $this = $(this)
-      var data  = $this.data('bs.alert')
-
-      if (!data) $this.data('bs.alert', (data = new Alert(this)))
-      if (typeof option == 'string') data[option].call($this)
-    })
-  }
-
-  var old = $.fn.alert
-
-  $.fn.alert             = Plugin
-  $.fn.alert.Constructor = Alert
-
-
-  // ALERT NO CONFLICT
-  // =================
-
-  $.fn.alert.noConflict = function () {
-    $.fn.alert = old
-    return this
-  }
-
-
-  // ALERT DATA-API
-  // ==============
-
-  $(document).on('click.bs.alert.data-api', dismiss, Alert.prototype.close)
-
-}(jQuery);
-
-/* ========================================================================
- * Bootstrap: button.js v3.3.7
- * http://getbootstrap.com/javascript/#buttons
- * ========================================================================
- * Copyright 2011-2016 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- * ======================================================================== */
-
-
-+function ($) {
-  'use strict';
-
-  // BUTTON PUBLIC CLASS DEFINITION
-  // ==============================
-
-  var Button = function (element, options) {
-    this.$element  = $(element)
-    this.options   = $.extend({}, Button.DEFAULTS, options)
-    this.isLoading = false
-  }
-
-  Button.VERSION  = '3.3.7'
-
-  Button.DEFAULTS = {
-    loadingText: 'loading...'
-  }
-
-  Button.prototype.setState = function (state) {
-    var d    = 'disabled'
-    var $el  = this.$element
-    var val  = $el.is('input') ? 'val' : 'html'
-    var data = $el.data()
-
-    state += 'Text'
-
-    if (data.resetText == null) $el.data('resetText', $el[val]())
-
-    // push to event loop to allow forms to submit
-    setTimeout($.proxy(function () {
-      $el[val](data[state] == null ? this.options[state] : data[state])
-
-      if (state == 'loadingText') {
-        this.isLoading = true
-        $el.addClass(d).attr(d, d).prop(d, true)
-      } else if (this.isLoading) {
-        this.isLoading = false
-        $el.removeClass(d).removeAttr(d).prop(d, false)
-      }
-    }, this), 0)
-  }
-
-  Button.prototype.toggle = function () {
-    var changed = true
-    var $parent = this.$element.closest('[data-toggle="buttons"]')
-
-    if ($parent.length) {
-      var $input = this.$element.find('input')
-      if ($input.prop('type') == 'radio') {
-        if ($input.prop('checked')) changed = false
-        $parent.find('.active').removeClass('active')
-        this.$element.addClass('active')
-      } else if ($input.prop('type') == 'checkbox') {
-        if (($input.prop('checked')) !== this.$element.hasClass('active')) changed = false
-        this.$element.toggleClass('active')
-      }
-      $input.prop('checked', this.$element.hasClass('active'))
-      if (changed) $input.trigger('change')
-    } else {
-      this.$element.attr('aria-pressed', !this.$element.hasClass('active'))
-      this.$element.toggleClass('active')
-    }
-  }
-
-
-  // BUTTON PLUGIN DEFINITION
-  // ========================
-
-  function Plugin(option) {
-    return this.each(function () {
-      var $this   = $(this)
-      var data    = $this.data('bs.button')
-      var options = typeof option == 'object' && option
-
-      if (!data) $this.data('bs.button', (data = new Button(this, options)))
-
-      if (option == 'toggle') data.toggle()
-      else if (option) data.setState(option)
-    })
-  }
-
-  var old = $.fn.button
-
-  $.fn.button             = Plugin
-  $.fn.button.Constructor = Button
-
-
-  // BUTTON NO CONFLICT
-  // ==================
-
-  $.fn.button.noConflict = function () {
-    $.fn.button = old
-    return this
-  }
-
-
-  // BUTTON DATA-API
-  // ===============
-
-  $(document)
-    .on('click.bs.button.data-api', '[data-toggle^="button"]', function (e) {
-      var $btn = $(e.target).closest('.btn')
-      Plugin.call($btn, 'toggle')
-      if (!($(e.target).is('input[type="radio"], input[type="checkbox"]'))) {
-        // Prevent double click on radios, and the double selections (so cancellation) on checkboxes
-        e.preventDefault()
-        // The target component still receive the focus
-        if ($btn.is('input,button')) $btn.trigger('focus')
-        else $btn.find('input:visible,button:visible').first().trigger('focus')
-      }
-    })
-    .on('focus.bs.button.data-api blur.bs.button.data-api', '[data-toggle^="button"]', function (e) {
-      $(e.target).closest('.btn').toggleClass('focus', /^focus(in)?$/.test(e.type))
-    })
-
-}(jQuery);
-
-/* ========================================================================
- * Bootstrap: carousel.js v3.3.7
- * http://getbootstrap.com/javascript/#carousel
- * ========================================================================
- * Copyright 2011-2016 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- * ======================================================================== */
-
-
-+function ($) {
-  'use strict';
-
-  // CAROUSEL CLASS DEFINITION
-  // =========================
-
-  var Carousel = function (element, options) {
-    this.$element    = $(element)
-    this.$indicators = this.$element.find('.carousel-indicators')
-    this.options     = options
-    this.paused      = null
-    this.sliding     = null
-    this.interval    = null
-    this.$active     = null
-    this.$items      = null
-
-    this.options.keyboard && this.$element.on('keydown.bs.carousel', $.proxy(this.keydown, this))
-
-    this.options.pause == 'hover' && !('ontouchstart' in document.documentElement) && this.$element
-      .on('mouseenter.bs.carousel', $.proxy(this.pause, this))
-      .on('mouseleave.bs.carousel', $.proxy(this.cycle, this))
-  }
-
-  Carousel.VERSION  = '3.3.7'
-
-  Carousel.TRANSITION_DURATION = 600
-
-  Carousel.DEFAULTS = {
-    interval: 5000,
-    pause: 'hover',
-    wrap: true,
-    keyboard: true
-  }
-
-  Carousel.prototype.keydown = function (e) {
-    if (/input|textarea/i.test(e.target.tagName)) return
-    switch (e.which) {
-      case 37: this.prev(); break
-      case 39: this.next(); break
-      default: return
-    }
-
-    e.preventDefault()
-  }
-
-  Carousel.prototype.cycle = function (e) {
-    e || (this.paused = false)
-
-    this.interval && clearInterval(this.interval)
-
-    this.options.interval
-      && !this.paused
-      && (this.interval = setInterval($.proxy(this.next, this), this.options.interval))
-
-    return this
-  }
-
-  Carousel.prototype.getItemIndex = function (item) {
-    this.$items = item.parent().children('.item')
-    return this.$items.index(item || this.$active)
-  }
-
-  Carousel.prototype.getItemForDirection = function (direction, active) {
-    var activeIndex = this.getItemIndex(active)
-    var willWrap = (direction == 'prev' && activeIndex === 0)
-                || (direction == 'next' && activeIndex == (this.$items.length - 1))
-    if (willWrap && !this.options.wrap) return active
-    var delta = direction == 'prev' ? -1 : 1
-    var itemIndex = (activeIndex + delta) % this.$items.length
-    return this.$items.eq(itemIndex)
-  }
-
-  Carousel.prototype.to = function (pos) {
-    var that        = this
-    var activeIndex = this.getItemIndex(this.$active = this.$element.find('.item.active'))
-
-    if (pos > (this.$items.length - 1) || pos < 0) return
-
-    if (this.sliding)       return this.$element.one('slid.bs.carousel', function () { that.to(pos) }) // yes, "slid"
-    if (activeIndex == pos) return this.pause().cycle()
-
-    return this.slide(pos > activeIndex ? 'next' : 'prev', this.$items.eq(pos))
-  }
-
-  Carousel.prototype.pause = function (e) {
-    e || (this.paused = true)
-
-    if (this.$element.find('.next, .prev').length && $.support.transition) {
-      this.$element.trigger($.support.transition.end)
-      this.cycle(true)
-    }
-
-    this.interval = clearInterval(this.interval)
-
-    return this
-  }
-
-  Carousel.prototype.next = function () {
-    if (this.sliding) return
-    return this.slide('next')
-  }
-
-  Carousel.prototype.prev = function () {
-    if (this.sliding) return
-    return this.slide('prev')
-  }
-
-  Carousel.prototype.slide = function (type, next) {
-    var $active   = this.$element.find('.item.active')
-    var $next     = next || this.getItemForDirection(type, $active)
-    var isCycling = this.interval
-    var direction = type == 'next' ? 'left' : 'right'
-    var that      = this
-
-    if ($next.hasClass('active')) return (this.sliding = false)
-
-    var relatedTarget = $next[0]
-    var slideEvent = $.Event('slide.bs.carousel', {
-      relatedTarget: relatedTarget,
-      direction: direction
-    })
-    this.$element.trigger(slideEvent)
-    if (slideEvent.isDefaultPrevented()) return
-
-    this.sliding = true
-
-    isCycling && this.pause()
-
-    if (this.$indicators.length) {
-      this.$indicators.find('.active').removeClass('active')
-      var $nextIndicator = $(this.$indicators.children()[this.getItemIndex($next)])
-      $nextIndicator && $nextIndicator.addClass('active')
-    }
-
-    var slidEvent = $.Event('slid.bs.carousel', { relatedTarget: relatedTarget, direction: direction }) // yes, "slid"
-    if ($.support.transition && this.$element.hasClass('slide')) {
-      $next.addClass(type)
-      $next[0].offsetWidth // force reflow
-      $active.addClass(direction)
-      $next.addClass(direction)
-      $active
-        .one('bsTransitionEnd', function () {
-          $next.removeClass([type, direction].join(' ')).addClass('active')
-          $active.removeClass(['active', direction].join(' '))
-          that.sliding = false
-          setTimeout(function () {
-            that.$element.trigger(slidEvent)
-          }, 0)
-        })
-        .emulateTransitionEnd(Carousel.TRANSITION_DURATION)
-    } else {
-      $active.removeClass('active')
-      $next.addClass('active')
-      this.sliding = false
-      this.$element.trigger(slidEvent)
-    }
-
-    isCycling && this.cycle()
-
-    return this
-  }
-
-
-  // CAROUSEL PLUGIN DEFINITION
-  // ==========================
-
-  function Plugin(option) {
-    return this.each(function () {
-      var $this   = $(this)
-      var data    = $this.data('bs.carousel')
-      var options = $.extend({}, Carousel.DEFAULTS, $this.data(), typeof option == 'object' && option)
-      var action  = typeof option == 'string' ? option : options.slide
-
-      if (!data) $this.data('bs.carousel', (data = new Carousel(this, options)))
-      if (typeof option == 'number') data.to(option)
-      else if (action) data[action]()
-      else if (options.interval) data.pause().cycle()
-    })
-  }
-
-  var old = $.fn.carousel
-
-  $.fn.carousel             = Plugin
-  $.fn.carousel.Constructor = Carousel
-
-
-  // CAROUSEL NO CONFLICT
-  // ====================
-
-  $.fn.carousel.noConflict = function () {
-    $.fn.carousel = old
-    return this
-  }
-
-
-  // CAROUSEL DATA-API
-  // =================
-
-  var clickHandler = function (e) {
-    var href
-    var $this   = $(this)
-    var $target = $($this.attr('data-target') || (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) // strip for ie7
-    if (!$target.hasClass('carousel')) return
-    var options = $.extend({}, $target.data(), $this.data())
-    var slideIndex = $this.attr('data-slide-to')
-    if (slideIndex) options.interval = false
-
-    Plugin.call($target, options)
-
-    if (slideIndex) {
-      $target.data('bs.carousel').to(slideIndex)
-    }
-
-    e.preventDefault()
-  }
-
-  $(document)
-    .on('click.bs.carousel.data-api', '[data-slide]', clickHandler)
-    .on('click.bs.carousel.data-api', '[data-slide-to]', clickHandler)
-
-  $(window).on('load', function () {
-    $('[data-ride="carousel"]').each(function () {
-      var $carousel = $(this)
-      Plugin.call($carousel, $carousel.data())
-    })
-  })
-
-}(jQuery);
-
-/* ========================================================================
- * Bootstrap: collapse.js v3.3.7
- * http://getbootstrap.com/javascript/#collapse
- * ========================================================================
- * Copyright 2011-2016 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- * ======================================================================== */
-
-/* jshint latedef: false */
-
-+function ($) {
-  'use strict';
-
-  // COLLAPSE PUBLIC CLASS DEFINITION
-  // ================================
-
-  var Collapse = function (element, options) {
-    this.$element      = $(element)
-    this.options       = $.extend({}, Collapse.DEFAULTS, options)
-    this.$trigger      = $('[data-toggle="collapse"][href="#' + element.id + '"],' +
-                           '[data-toggle="collapse"][data-target="#' + element.id + '"]')
-    this.transitioning = null
-
-    if (this.options.parent) {
-      this.$parent = this.getParent()
-    } else {
-      this.addAriaAndCollapsedClass(this.$element, this.$trigger)
-    }
-
-    if (this.options.toggle) this.toggle()
-  }
-
-  Collapse.VERSION  = '3.3.7'
-
-  Collapse.TRANSITION_DURATION = 350
-
-  Collapse.DEFAULTS = {
-    toggle: true
-  }
-
-  Collapse.prototype.dimension = function () {
-    var hasWidth = this.$element.hasClass('width')
-    return hasWidth ? 'width' : 'height'
-  }
-
-  Collapse.prototype.show = function () {
-    if (this.transitioning || this.$element.hasClass('in')) return
-
-    var activesData
-    var actives = this.$parent && this.$parent.children('.panel').children('.in, .collapsing')
-
-    if (actives && actives.length) {
-      activesData = actives.data('bs.collapse')
-      if (activesData && activesData.transitioning) return
-    }
-
-    var startEvent = $.Event('show.bs.collapse')
-    this.$element.trigger(startEvent)
-    if (startEvent.isDefaultPrevented()) return
-
-    if (actives && actives.length) {
-      Plugin.call(actives, 'hide')
-      activesData || actives.data('bs.collapse', null)
-    }
-
-    var dimension = this.dimension()
-
-    this.$element
-      .removeClass('collapse')
-      .addClass('collapsing')[dimension](0)
-      .attr('aria-expanded', true)
-
-    this.$trigger
-      .removeClass('collapsed')
-      .attr('aria-expanded', true)
-
-    this.transitioning = 1
-
-    var complete = function () {
-      this.$element
-        .removeClass('collapsing')
-        .addClass('collapse in')[dimension]('')
-      this.transitioning = 0
-      this.$element
-        .trigger('shown.bs.collapse')
-    }
-
-    if (!$.support.transition) return complete.call(this)
-
-    var scrollSize = $.camelCase(['scroll', dimension].join('-'))
-
-    this.$element
-      .one('bsTransitionEnd', $.proxy(complete, this))
-      .emulateTransitionEnd(Collapse.TRANSITION_DURATION)[dimension](this.$element[0][scrollSize])
-  }
-
-  Collapse.prototype.hide = function () {
-    if (this.transitioning || !this.$element.hasClass('in')) return
-
-    var startEvent = $.Event('hide.bs.collapse')
-    this.$element.trigger(startEvent)
-    if (startEvent.isDefaultPrevented()) return
-
-    var dimension = this.dimension()
-
-    this.$element[dimension](this.$element[dimension]())[0].offsetHeight
-
-    this.$element
-      .addClass('collapsing')
-      .removeClass('collapse in')
-      .attr('aria-expanded', false)
-
-    this.$trigger
-      .addClass('collapsed')
-      .attr('aria-expanded', false)
-
-    this.transitioning = 1
-
-    var complete = function () {
-      this.transitioning = 0
-      this.$element
-        .removeClass('collapsing')
-        .addClass('collapse')
-        .trigger('hidden.bs.collapse')
-    }
-
-    if (!$.support.transition) return complete.call(this)
-
-    this.$element
-      [dimension](0)
-      .one('bsTransitionEnd', $.proxy(complete, this))
-      .emulateTransitionEnd(Collapse.TRANSITION_DURATION)
-  }
-
-  Collapse.prototype.toggle = function () {
-    this[this.$element.hasClass('in') ? 'hide' : 'show']()
-  }
-
-  Collapse.prototype.getParent = function () {
-    return $(this.options.parent)
-      .find('[data-toggle="collapse"][data-parent="' + this.options.parent + '"]')
-      .each($.proxy(function (i, element) {
-        var $element = $(element)
-        this.addAriaAndCollapsedClass(getTargetFromTrigger($element), $element)
-      }, this))
-      .end()
-  }
-
-  Collapse.prototype.addAriaAndCollapsedClass = function ($element, $trigger) {
-    var isOpen = $element.hasClass('in')
-
-    $element.attr('aria-expanded', isOpen)
-    $trigger
-      .toggleClass('collapsed', !isOpen)
-      .attr('aria-expanded', isOpen)
-  }
-
-  function getTargetFromTrigger($trigger) {
-    var href
-    var target = $trigger.attr('data-target')
-      || (href = $trigger.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '') // strip for ie7
-
-    return $(target)
-  }
-
-
-  // COLLAPSE PLUGIN DEFINITION
-  // ==========================
-
-  function Plugin(option) {
-    return this.each(function () {
-      var $this   = $(this)
-      var data    = $this.data('bs.collapse')
-      var options = $.extend({}, Collapse.DEFAULTS, $this.data(), typeof option == 'object' && option)
-
-      if (!data && options.toggle && /show|hide/.test(option)) options.toggle = false
-      if (!data) $this.data('bs.collapse', (data = new Collapse(this, options)))
-      if (typeof option == 'string') data[option]()
-    })
-  }
-
-  var old = $.fn.collapse
-
-  $.fn.collapse             = Plugin
-  $.fn.collapse.Constructor = Collapse
-
-
-  // COLLAPSE NO CONFLICT
-  // ====================
-
-  $.fn.collapse.noConflict = function () {
-    $.fn.collapse = old
-    return this
-  }
-
-
-  // COLLAPSE DATA-API
-  // =================
-
-  $(document).on('click.bs.collapse.data-api', '[data-toggle="collapse"]', function (e) {
-    var $this   = $(this)
-
-    if (!$this.attr('data-target')) e.preventDefault()
-
-    var $target = getTargetFromTrigger($this)
-    var data    = $target.data('bs.collapse')
-    var option  = data ? 'toggle' : $this.data()
-
-    Plugin.call($target, option)
-  })
-
-}(jQuery);
-
-/* ========================================================================
- * Bootstrap: dropdown.js v3.3.7
- * http://getbootstrap.com/javascript/#dropdowns
- * ========================================================================
- * Copyright 2011-2016 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- * ======================================================================== */
-
-
-+function ($) {
-  'use strict';
-
-  // DROPDOWN CLASS DEFINITION
-  // =========================
-
-  var backdrop = '.dropdown-backdrop'
-  var toggle   = '[data-toggle="dropdown"]'
-  var Dropdown = function (element) {
-    $(element).on('click.bs.dropdown', this.toggle)
-  }
-
-  Dropdown.VERSION = '3.3.7'
-
-  function getParent($this) {
-    var selector = $this.attr('data-target')
-
-    if (!selector) {
-      selector = $this.attr('href')
-      selector = selector && /#[A-Za-z]/.test(selector) && selector.replace(/.*(?=#[^\s]*$)/, '') // strip for ie7
-    }
-
-    var $parent = selector && $(selector)
-
-    return $parent && $parent.length ? $parent : $this.parent()
-  }
-
-  function clearMenus(e) {
-    if (e && e.which === 3) return
-    $(backdrop).remove()
-    $(toggle).each(function () {
-      var $this         = $(this)
-      var $parent       = getParent($this)
-      var relatedTarget = { relatedTarget: this }
-
-      if (!$parent.hasClass('open')) return
-
-      if (e && e.type == 'click' && /input|textarea/i.test(e.target.tagName) && $.contains($parent[0], e.target)) return
-
-      $parent.trigger(e = $.Event('hide.bs.dropdown', relatedTarget))
-
-      if (e.isDefaultPrevented()) return
-
-      $this.attr('aria-expanded', 'false')
-      $parent.removeClass('open').trigger($.Event('hidden.bs.dropdown', relatedTarget))
-    })
-  }
-
-  Dropdown.prototype.toggle = function (e) {
-    var $this = $(this)
-
-    if ($this.is('.disabled, :disabled')) return
-
-    var $parent  = getParent($this)
-    var isActive = $parent.hasClass('open')
-
-    clearMenus()
-
-    if (!isActive) {
-      if ('ontouchstart' in document.documentElement && !$parent.closest('.navbar-nav').length) {
-        // if mobile we use a backdrop because click events don't delegate
-        $(document.createElement('div'))
-          .addClass('dropdown-backdrop')
-          .insertAfter($(this))
-          .on('click', clearMenus)
-      }
-
-      var relatedTarget = { relatedTarget: this }
-      $parent.trigger(e = $.Event('show.bs.dropdown', relatedTarget))
-
-      if (e.isDefaultPrevented()) return
-
-      $this
-        .trigger('focus')
-        .attr('aria-expanded', 'true')
-
-      $parent
-        .toggleClass('open')
-        .trigger($.Event('shown.bs.dropdown', relatedTarget))
-    }
-
-    return false
-  }
-
-  Dropdown.prototype.keydown = function (e) {
-    if (!/(38|40|27|32)/.test(e.which) || /input|textarea/i.test(e.target.tagName)) return
-
-    var $this = $(this)
-
-    e.preventDefault()
-    e.stopPropagation()
-
-    if ($this.is('.disabled, :disabled')) return
-
-    var $parent  = getParent($this)
-    var isActive = $parent.hasClass('open')
-
-    if (!isActive && e.which != 27 || isActive && e.which == 27) {
-      if (e.which == 27) $parent.find(toggle).trigger('focus')
-      return $this.trigger('click')
-    }
-
-    var desc = ' li:not(.disabled):visible a'
-    var $items = $parent.find('.dropdown-menu' + desc)
-
-    if (!$items.length) return
-
-    var index = $items.index(e.target)
-
-    if (e.which == 38 && index > 0)                 index--         // up
-    if (e.which == 40 && index < $items.length - 1) index++         // down
-    if (!~index)                                    index = 0
-
-    $items.eq(index).trigger('focus')
-  }
-
-
-  // DROPDOWN PLUGIN DEFINITION
-  // ==========================
-
-  function Plugin(option) {
-    return this.each(function () {
-      var $this = $(this)
-      var data  = $this.data('bs.dropdown')
-
-      if (!data) $this.data('bs.dropdown', (data = new Dropdown(this)))
-      if (typeof option == 'string') data[option].call($this)
-    })
-  }
-
-  var old = $.fn.dropdown
-
-  $.fn.dropdown             = Plugin
-  $.fn.dropdown.Constructor = Dropdown
-
-
-  // DROPDOWN NO CONFLICT
-  // ====================
-
-  $.fn.dropdown.noConflict = function () {
-    $.fn.dropdown = old
-    return this
-  }
-
-
-  // APPLY TO STANDARD DROPDOWN ELEMENTS
-  // ===================================
-
-  $(document)
-    .on('click.bs.dropdown.data-api', clearMenus)
-    .on('click.bs.dropdown.data-api', '.dropdown form', function (e) { e.stopPropagation() })
-    .on('click.bs.dropdown.data-api', toggle, Dropdown.prototype.toggle)
-    .on('keydown.bs.dropdown.data-api', toggle, Dropdown.prototype.keydown)
-    .on('keydown.bs.dropdown.data-api', '.dropdown-menu', Dropdown.prototype.keydown)
-
-}(jQuery);
-
-/* ========================================================================
- * Bootstrap: modal.js v3.3.7
- * http://getbootstrap.com/javascript/#modals
- * ========================================================================
- * Copyright 2011-2016 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- * ======================================================================== */
-
-
-+function ($) {
-  'use strict';
-
-  // MODAL CLASS DEFINITION
-  // ======================
-
-  var Modal = function (element, options) {
-    this.options             = options
-    this.$body               = $(document.body)
-    this.$element            = $(element)
-    this.$dialog             = this.$element.find('.modal-dialog')
-    this.$backdrop           = null
-    this.isShown             = null
-    this.originalBodyPad     = null
-    this.scrollbarWidth      = 0
-    this.ignoreBackdropClick = false
-
-    if (this.options.remote) {
-      this.$element
-        .find('.modal-content')
-        .load(this.options.remote, $.proxy(function () {
-          this.$element.trigger('loaded.bs.modal')
-        }, this))
-    }
-  }
-
-  Modal.VERSION  = '3.3.7'
-
-  Modal.TRANSITION_DURATION = 300
-  Modal.BACKDROP_TRANSITION_DURATION = 150
-
-  Modal.DEFAULTS = {
-    backdrop: true,
-    keyboard: true,
-    show: true
-  }
-
-  Modal.prototype.toggle = function (_relatedTarget) {
-    return this.isShown ? this.hide() : this.show(_relatedTarget)
-  }
-
-  Modal.prototype.show = function (_relatedTarget) {
-    var that = this
-    var e    = $.Event('show.bs.modal', { relatedTarget: _relatedTarget })
-
-    this.$element.trigger(e)
-
-    if (this.isShown || e.isDefaultPrevented()) return
-
-    this.isShown = true
-
-    this.checkScrollbar()
-    this.setScrollbar()
-    this.$body.addClass('modal-open')
-
-    this.escape()
-    this.resize()
-
-    this.$element.on('click.dismiss.bs.modal', '[data-dismiss="modal"]', $.proxy(this.hide, this))
-
-    this.$dialog.on('mousedown.dismiss.bs.modal', function () {
-      that.$element.one('mouseup.dismiss.bs.modal', function (e) {
-        if ($(e.target).is(that.$element)) that.ignoreBackdropClick = true
-      })
-    })
-
-    this.backdrop(function () {
-      var transition = $.support.transition && that.$element.hasClass('fade')
-
-      if (!that.$element.parent().length) {
-        that.$element.appendTo(that.$body) // don't move modals dom position
-      }
-
-      that.$element
-        .show()
-        .scrollTop(0)
-
-      that.adjustDialog()
-
-      if (transition) {
-        that.$element[0].offsetWidth // force reflow
-      }
-
-      that.$element.addClass('in')
-
-      that.enforceFocus()
-
-      var e = $.Event('shown.bs.modal', { relatedTarget: _relatedTarget })
-
-      transition ?
-        that.$dialog // wait for modal to slide in
-          .one('bsTransitionEnd', function () {
-            that.$element.trigger('focus').trigger(e)
-          })
-          .emulateTransitionEnd(Modal.TRANSITION_DURATION) :
-        that.$element.trigger('focus').trigger(e)
-    })
-  }
-
-  Modal.prototype.hide = function (e) {
-    if (e) e.preventDefault()
-
-    e = $.Event('hide.bs.modal')
-
-    this.$element.trigger(e)
-
-    if (!this.isShown || e.isDefaultPrevented()) return
-
-    this.isShown = false
-
-    this.escape()
-    this.resize()
-
-    $(document).off('focusin.bs.modal')
-
-    this.$element
-      .removeClass('in')
-      .off('click.dismiss.bs.modal')
-      .off('mouseup.dismiss.bs.modal')
-
-    this.$dialog.off('mousedown.dismiss.bs.modal')
-
-    $.support.transition && this.$element.hasClass('fade') ?
-      this.$element
-        .one('bsTransitionEnd', $.proxy(this.hideModal, this))
-        .emulateTransitionEnd(Modal.TRANSITION_DURATION) :
-      this.hideModal()
-  }
-
-  Modal.prototype.enforceFocus = function () {
-    $(document)
-      .off('focusin.bs.modal') // guard against infinite focus loop
-      .on('focusin.bs.modal', $.proxy(function (e) {
-        if (document !== e.target &&
-            this.$element[0] !== e.target &&
-            !this.$element.has(e.target).length) {
-          this.$element.trigger('focus')
-        }
-      }, this))
-  }
-
-  Modal.prototype.escape = function () {
-    if (this.isShown && this.options.keyboard) {
-      this.$element.on('keydown.dismiss.bs.modal', $.proxy(function (e) {
-        e.which == 27 && this.hide()
-      }, this))
-    } else if (!this.isShown) {
-      this.$element.off('keydown.dismiss.bs.modal')
-    }
-  }
-
-  Modal.prototype.resize = function () {
-    if (this.isShown) {
-      $(window).on('resize.bs.modal', $.proxy(this.handleUpdate, this))
-    } else {
-      $(window).off('resize.bs.modal')
-    }
-  }
-
-  Modal.prototype.hideModal = function () {
-    var that = this
-    this.$element.hide()
-    this.backdrop(function () {
-      that.$body.removeClass('modal-open')
-      that.resetAdjustments()
-      that.resetScrollbar()
-      that.$element.trigger('hidden.bs.modal')
-    })
-  }
-
-  Modal.prototype.removeBackdrop = function () {
-    this.$backdrop && this.$backdrop.remove()
-    this.$backdrop = null
-  }
-
-  Modal.prototype.backdrop = function (callback) {
-    var that = this
-    var animate = this.$element.hasClass('fade') ? 'fade' : ''
-
-    if (this.isShown && this.options.backdrop) {
-      var doAnimate = $.support.transition && animate
-
-      this.$backdrop = $(document.createElement('div'))
-        .addClass('modal-backdrop ' + animate)
-        .appendTo(this.$body)
-
-      this.$element.on('click.dismiss.bs.modal', $.proxy(function (e) {
-        if (this.ignoreBackdropClick) {
-          this.ignoreBackdropClick = false
-          return
-        }
-        if (e.target !== e.currentTarget) return
-        this.options.backdrop == 'static'
-          ? this.$element[0].focus()
-          : this.hide()
-      }, this))
-
-      if (doAnimate) this.$backdrop[0].offsetWidth // force reflow
-
-      this.$backdrop.addClass('in')
-
-      if (!callback) return
-
-      doAnimate ?
-        this.$backdrop
-          .one('bsTransitionEnd', callback)
-          .emulateTransitionEnd(Modal.BACKDROP_TRANSITION_DURATION) :
-        callback()
-
-    } else if (!this.isShown && this.$backdrop) {
-      this.$backdrop.removeClass('in')
-
-      var callbackRemove = function () {
-        that.removeBackdrop()
-        callback && callback()
-      }
-      $.support.transition && this.$element.hasClass('fade') ?
-        this.$backdrop
-          .one('bsTransitionEnd', callbackRemove)
-          .emulateTransitionEnd(Modal.BACKDROP_TRANSITION_DURATION) :
-        callbackRemove()
-
-    } else if (callback) {
-      callback()
-    }
-  }
-
-  // these following methods are used to handle overflowing modals
-
-  Modal.prototype.handleUpdate = function () {
-    this.adjustDialog()
-  }
-
-  Modal.prototype.adjustDialog = function () {
-    var modalIsOverflowing = this.$element[0].scrollHeight > document.documentElement.clientHeight
-
-    this.$element.css({
-      paddingLeft:  !this.bodyIsOverflowing && modalIsOverflowing ? this.scrollbarWidth : '',
-      paddingRight: this.bodyIsOverflowing && !modalIsOverflowing ? this.scrollbarWidth : ''
-    })
-  }
-
-  Modal.prototype.resetAdjustments = function () {
-    this.$element.css({
-      paddingLeft: '',
-      paddingRight: ''
-    })
-  }
-
-  Modal.prototype.checkScrollbar = function () {
-    var fullWindowWidth = window.innerWidth
-    if (!fullWindowWidth) { // workaround for missing window.innerWidth in IE8
-      var documentElementRect = document.documentElement.getBoundingClientRect()
-      fullWindowWidth = documentElementRect.right - Math.abs(documentElementRect.left)
-    }
-    this.bodyIsOverflowing = document.body.clientWidth < fullWindowWidth
-    this.scrollbarWidth = this.measureScrollbar()
-  }
-
-  Modal.prototype.setScrollbar = function () {
-    var bodyPad = parseInt((this.$body.css('padding-right') || 0), 10)
-    this.originalBodyPad = document.body.style.paddingRight || ''
-    if (this.bodyIsOverflowing) this.$body.css('padding-right', bodyPad + this.scrollbarWidth)
-  }
-
-  Modal.prototype.resetScrollbar = function () {
-    this.$body.css('padding-right', this.originalBodyPad)
-  }
-
-  Modal.prototype.measureScrollbar = function () { // thx walsh
-    var scrollDiv = document.createElement('div')
-    scrollDiv.className = 'modal-scrollbar-measure'
-    this.$body.append(scrollDiv)
-    var scrollbarWidth = scrollDiv.offsetWidth - scrollDiv.clientWidth
-    this.$body[0].removeChild(scrollDiv)
-    return scrollbarWidth
-  }
-
-
-  // MODAL PLUGIN DEFINITION
-  // =======================
-
-  function Plugin(option, _relatedTarget) {
-    return this.each(function () {
-      var $this   = $(this)
-      var data    = $this.data('bs.modal')
-      var options = $.extend({}, Modal.DEFAULTS, $this.data(), typeof option == 'object' && option)
-
-      if (!data) $this.data('bs.modal', (data = new Modal(this, options)))
-      if (typeof option == 'string') data[option](_relatedTarget)
-      else if (options.show) data.show(_relatedTarget)
-    })
-  }
-
-  var old = $.fn.modal
-
-  $.fn.modal             = Plugin
-  $.fn.modal.Constructor = Modal
-
-
-  // MODAL NO CONFLICT
-  // =================
-
-  $.fn.modal.noConflict = function () {
-    $.fn.modal = old
-    return this
-  }
-
-
-  // MODAL DATA-API
-  // ==============
-
-  $(document).on('click.bs.modal.data-api', '[data-toggle="modal"]', function (e) {
-    var $this   = $(this)
-    var href    = $this.attr('href')
-    var $target = $($this.attr('data-target') || (href && href.replace(/.*(?=#[^\s]+$)/, ''))) // strip for ie7
-    var option  = $target.data('bs.modal') ? 'toggle' : $.extend({ remote: !/#/.test(href) && href }, $target.data(), $this.data())
-
-    if ($this.is('a')) e.preventDefault()
-
-    $target.one('show.bs.modal', function (showEvent) {
-      if (showEvent.isDefaultPrevented()) return // only register focus restorer if modal will actually get shown
-      $target.one('hidden.bs.modal', function () {
-        $this.is(':visible') && $this.trigger('focus')
-      })
-    })
-    Plugin.call($target, option, this)
-  })
-
-}(jQuery);
-
-/* ========================================================================
- * Bootstrap: tooltip.js v3.3.7
- * http://getbootstrap.com/javascript/#tooltip
- * Inspired by the original jQuery.tipsy by Jason Frame
- * ========================================================================
- * Copyright 2011-2016 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- * ======================================================================== */
-
-
-+function ($) {
-  'use strict';
-
-  // TOOLTIP PUBLIC CLASS DEFINITION
-  // ===============================
-
-  var Tooltip = function (element, options) {
-    this.type       = null
-    this.options    = null
-    this.enabled    = null
-    this.timeout    = null
-    this.hoverState = null
-    this.$element   = null
-    this.inState    = null
-
-    this.init('tooltip', element, options)
-  }
-
-  Tooltip.VERSION  = '3.3.7'
-
-  Tooltip.TRANSITION_DURATION = 150
-
-  Tooltip.DEFAULTS = {
-    animation: true,
-    placement: 'top',
-    selector: false,
-    template: '<div class="tooltip" role="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>',
-    trigger: 'hover focus',
-    title: '',
-    delay: 0,
-    html: false,
-    container: false,
-    viewport: {
-      selector: 'body',
-      padding: 0
-    }
-  }
-
-  Tooltip.prototype.init = function (type, element, options) {
-    this.enabled   = true
-    this.type      = type
-    this.$element  = $(element)
-    this.options   = this.getOptions(options)
-    this.$viewport = this.options.viewport && $($.isFunction(this.options.viewport) ? this.options.viewport.call(this, this.$element) : (this.options.viewport.selector || this.options.viewport))
-    this.inState   = { click: false, hover: false, focus: false }
-
-    if (this.$element[0] instanceof document.constructor && !this.options.selector) {
-      throw new Error('`selector` option must be specified when initializing ' + this.type + ' on the window.document object!')
-    }
-
-    var triggers = this.options.trigger.split(' ')
-
-    for (var i = triggers.length; i--;) {
-      var trigger = triggers[i]
-
-      if (trigger == 'click') {
-        this.$element.on('click.' + this.type, this.options.selector, $.proxy(this.toggle, this))
-      } else if (trigger != 'manual') {
-        var eventIn  = trigger == 'hover' ? 'mouseenter' : 'focusin'
-        var eventOut = trigger == 'hover' ? 'mouseleave' : 'focusout'
-
-        this.$element.on(eventIn  + '.' + this.type, this.options.selector, $.proxy(this.enter, this))
-        this.$element.on(eventOut + '.' + this.type, this.options.selector, $.proxy(this.leave, this))
-      }
-    }
-
-    this.options.selector ?
-      (this._options = $.extend({}, this.options, { trigger: 'manual', selector: '' })) :
-      this.fixTitle()
-  }
-
-  Tooltip.prototype.getDefaults = function () {
-    return Tooltip.DEFAULTS
-  }
-
-  Tooltip.prototype.getOptions = function (options) {
-    options = $.extend({}, this.getDefaults(), this.$element.data(), options)
-
-    if (options.delay && typeof options.delay == 'number') {
-      options.delay = {
-        show: options.delay,
-        hide: options.delay
-      }
-    }
-
-    return options
-  }
-
-  Tooltip.prototype.getDelegateOptions = function () {
-    var options  = {}
-    var defaults = this.getDefaults()
-
-    this._options && $.each(this._options, function (key, value) {
-      if (defaults[key] != value) options[key] = value
-    })
-
-    return options
-  }
-
-  Tooltip.prototype.enter = function (obj) {
-    var self = obj instanceof this.constructor ?
-      obj : $(obj.currentTarget).data('bs.' + this.type)
-
-    if (!self) {
-      self = new this.constructor(obj.currentTarget, this.getDelegateOptions())
-      $(obj.currentTarget).data('bs.' + this.type, self)
-    }
-
-    if (obj instanceof $.Event) {
-      self.inState[obj.type == 'focusin' ? 'focus' : 'hover'] = true
-    }
-
-    if (self.tip().hasClass('in') || self.hoverState == 'in') {
-      self.hoverState = 'in'
-      return
-    }
-
-    clearTimeout(self.timeout)
-
-    self.hoverState = 'in'
-
-    if (!self.options.delay || !self.options.delay.show) return self.show()
-
-    self.timeout = setTimeout(function () {
-      if (self.hoverState == 'in') self.show()
-    }, self.options.delay.show)
-  }
-
-  Tooltip.prototype.isInStateTrue = function () {
-    for (var key in this.inState) {
-      if (this.inState[key]) return true
-    }
-
-    return false
-  }
-
-  Tooltip.prototype.leave = function (obj) {
-    var self = obj instanceof this.constructor ?
-      obj : $(obj.currentTarget).data('bs.' + this.type)
-
-    if (!self) {
-      self = new this.constructor(obj.currentTarget, this.getDelegateOptions())
-      $(obj.currentTarget).data('bs.' + this.type, self)
-    }
-
-    if (obj instanceof $.Event) {
-      self.inState[obj.type == 'focusout' ? 'focus' : 'hover'] = false
-    }
-
-    if (self.isInStateTrue()) return
-
-    clearTimeout(self.timeout)
-
-    self.hoverState = 'out'
-
-    if (!self.options.delay || !self.options.delay.hide) return self.hide()
-
-    self.timeout = setTimeout(function () {
-      if (self.hoverState == 'out') self.hide()
-    }, self.options.delay.hide)
-  }
-
-  Tooltip.prototype.show = function () {
-    var e = $.Event('show.bs.' + this.type)
-
-    if (this.hasContent() && this.enabled) {
-      this.$element.trigger(e)
-
-      var inDom = $.contains(this.$element[0].ownerDocument.documentElement, this.$element[0])
-      if (e.isDefaultPrevented() || !inDom) return
-      var that = this
-
-      var $tip = this.tip()
-
-      var tipId = this.getUID(this.type)
-
-      this.setContent()
-      $tip.attr('id', tipId)
-      this.$element.attr('aria-describedby', tipId)
-
-      if (this.options.animation) $tip.addClass('fade')
-
-      var placement = typeof this.options.placement == 'function' ?
-        this.options.placement.call(this, $tip[0], this.$element[0]) :
-        this.options.placement
-
-      var autoToken = /\s?auto?\s?/i
-      var autoPlace = autoToken.test(placement)
-      if (autoPlace) placement = placement.replace(autoToken, '') || 'top'
-
-      $tip
-        .detach()
-        .css({ top: 0, left: 0, display: 'block' })
-        .addClass(placement)
-        .data('bs.' + this.type, this)
-
-      this.options.container ? $tip.appendTo(this.options.container) : $tip.insertAfter(this.$element)
-      this.$element.trigger('inserted.bs.' + this.type)
-
-      var pos          = this.getPosition()
-      var actualWidth  = $tip[0].offsetWidth
-      var actualHeight = $tip[0].offsetHeight
-
-      if (autoPlace) {
-        var orgPlacement = placement
-        var viewportDim = this.getPosition(this.$viewport)
-
-        placement = placement == 'bottom' && pos.bottom + actualHeight > viewportDim.bottom ? 'top'    :
-                    placement == 'top'    && pos.top    - actualHeight < viewportDim.top    ? 'bottom' :
-                    placement == 'right'  && pos.right  + actualWidth  > viewportDim.width  ? 'left'   :
-                    placement == 'left'   && pos.left   - actualWidth  < viewportDim.left   ? 'right'  :
-                    placement
-
-        $tip
-          .removeClass(orgPlacement)
-          .addClass(placement)
-      }
-
-      var calculatedOffset = this.getCalculatedOffset(placement, pos, actualWidth, actualHeight)
-
-      this.applyPlacement(calculatedOffset, placement)
-
-      var complete = function () {
-        var prevHoverState = that.hoverState
-        that.$element.trigger('shown.bs.' + that.type)
-        that.hoverState = null
-
-        if (prevHoverState == 'out') that.leave(that)
-      }
-
-      $.support.transition && this.$tip.hasClass('fade') ?
-        $tip
-          .one('bsTransitionEnd', complete)
-          .emulateTransitionEnd(Tooltip.TRANSITION_DURATION) :
-        complete()
-    }
-  }
-
-  Tooltip.prototype.applyPlacement = function (offset, placement) {
-    var $tip   = this.tip()
-    var width  = $tip[0].offsetWidth
-    var height = $tip[0].offsetHeight
-
-    // manually read margins because getBoundingClientRect includes difference
-    var marginTop = parseInt($tip.css('margin-top'), 10)
-    var marginLeft = parseInt($tip.css('margin-left'), 10)
-
-    // we must check for NaN for ie 8/9
-    if (isNaN(marginTop))  marginTop  = 0
-    if (isNaN(marginLeft)) marginLeft = 0
-
-    offset.top  += marginTop
-    offset.left += marginLeft
-
-    // $.fn.offset doesn't round pixel values
-    // so we use setOffset directly with our own function B-0
-    $.offset.setOffset($tip[0], $.extend({
-      using: function (props) {
-        $tip.css({
-          top: Math.round(props.top),
-          left: Math.round(props.left)
-        })
-      }
-    }, offset), 0)
-
-    $tip.addClass('in')
-
-    // check to see if placing tip in new offset caused the tip to resize itself
-    var actualWidth  = $tip[0].offsetWidth
-    var actualHeight = $tip[0].offsetHeight
-
-    if (placement == 'top' && actualHeight != height) {
-      offset.top = offset.top + height - actualHeight
-    }
-
-    var delta = this.getViewportAdjustedDelta(placement, offset, actualWidth, actualHeight)
-
-    if (delta.left) offset.left += delta.left
-    else offset.top += delta.top
-
-    var isVertical          = /top|bottom/.test(placement)
-    var arrowDelta          = isVertical ? delta.left * 2 - width + actualWidth : delta.top * 2 - height + actualHeight
-    var arrowOffsetPosition = isVertical ? 'offsetWidth' : 'offsetHeight'
-
-    $tip.offset(offset)
-    this.replaceArrow(arrowDelta, $tip[0][arrowOffsetPosition], isVertical)
-  }
-
-  Tooltip.prototype.replaceArrow = function (delta, dimension, isVertical) {
-    this.arrow()
-      .css(isVertical ? 'left' : 'top', 50 * (1 - delta / dimension) + '%')
-      .css(isVertical ? 'top' : 'left', '')
-  }
-
-  Tooltip.prototype.setContent = function () {
-    var $tip  = this.tip()
-    var title = this.getTitle()
-
-    $tip.find('.tooltip-inner')[this.options.html ? 'html' : 'text'](title)
-    $tip.removeClass('fade in top bottom left right')
-  }
-
-  Tooltip.prototype.hide = function (callback) {
-    var that = this
-    var $tip = $(this.$tip)
-    var e    = $.Event('hide.bs.' + this.type)
-
-    function complete() {
-      if (that.hoverState != 'in') $tip.detach()
-      if (that.$element) { // TODO: Check whether guarding this code with this `if` is really necessary.
-        that.$element
-          .removeAttr('aria-describedby')
-          .trigger('hidden.bs.' + that.type)
-      }
-      callback && callback()
-    }
-
-    this.$element.trigger(e)
-
-    if (e.isDefaultPrevented()) return
-
-    $tip.removeClass('in')
-
-    $.support.transition && $tip.hasClass('fade') ?
-      $tip
-        .one('bsTransitionEnd', complete)
-        .emulateTransitionEnd(Tooltip.TRANSITION_DURATION) :
-      complete()
-
-    this.hoverState = null
-
-    return this
-  }
-
-  Tooltip.prototype.fixTitle = function () {
-    var $e = this.$element
-    if ($e.attr('title') || typeof $e.attr('data-original-title') != 'string') {
-      $e.attr('data-original-title', $e.attr('title') || '').attr('title', '')
-    }
-  }
-
-  Tooltip.prototype.hasContent = function () {
-    return this.getTitle()
-  }
-
-  Tooltip.prototype.getPosition = function ($element) {
-    $element   = $element || this.$element
-
-    var el     = $element[0]
-    var isBody = el.tagName == 'BODY'
-
-    var elRect    = el.getBoundingClientRect()
-    if (elRect.width == null) {
-      // width and height are missing in IE8, so compute them manually; see https://github.com/twbs/bootstrap/issues/14093
-      elRect = $.extend({}, elRect, { width: elRect.right - elRect.left, height: elRect.bottom - elRect.top })
-    }
-    var isSvg = window.SVGElement && el instanceof window.SVGElement
-    // Avoid using $.offset() on SVGs since it gives incorrect results in jQuery 3.
-    // See https://github.com/twbs/bootstrap/issues/20280
-    var elOffset  = isBody ? { top: 0, left: 0 } : (isSvg ? null : $element.offset())
-    var scroll    = { scroll: isBody ? document.documentElement.scrollTop || document.body.scrollTop : $element.scrollTop() }
-    var outerDims = isBody ? { width: $(window).width(), height: $(window).height() } : null
-
-    return $.extend({}, elRect, scroll, outerDims, elOffset)
-  }
-
-  Tooltip.prototype.getCalculatedOffset = function (placement, pos, actualWidth, actualHeight) {
-    return placement == 'bottom' ? { top: pos.top + pos.height,   left: pos.left + pos.width / 2 - actualWidth / 2 } :
-           placement == 'top'    ? { top: pos.top - actualHeight, left: pos.left + pos.width / 2 - actualWidth / 2 } :
-           placement == 'left'   ? { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left - actualWidth } :
-        /* placement == 'right' */ { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left + pos.width }
-
-  }
-
-  Tooltip.prototype.getViewportAdjustedDelta = function (placement, pos, actualWidth, actualHeight) {
-    var delta = { top: 0, left: 0 }
-    if (!this.$viewport) return delta
-
-    var viewportPadding = this.options.viewport && this.options.viewport.padding || 0
-    var viewportDimensions = this.getPosition(this.$viewport)
-
-    if (/right|left/.test(placement)) {
-      var topEdgeOffset    = pos.top - viewportPadding - viewportDimensions.scroll
-      var bottomEdgeOffset = pos.top + viewportPadding - viewportDimensions.scroll + actualHeight
-      if (topEdgeOffset < viewportDimensions.top) { // top overflow
-        delta.top = viewportDimensions.top - topEdgeOffset
-      } else if (bottomEdgeOffset > viewportDimensions.top + viewportDimensions.height) { // bottom overflow
-        delta.top = viewportDimensions.top + viewportDimensions.height - bottomEdgeOffset
-      }
-    } else {
-      var leftEdgeOffset  = pos.left - viewportPadding
-      var rightEdgeOffset = pos.left + viewportPadding + actualWidth
-      if (leftEdgeOffset < viewportDimensions.left) { // left overflow
-        delta.left = viewportDimensions.left - leftEdgeOffset
-      } else if (rightEdgeOffset > viewportDimensions.right) { // right overflow
-        delta.left = viewportDimensions.left + viewportDimensions.width - rightEdgeOffset
-      }
-    }
-
-    return delta
-  }
-
-  Tooltip.prototype.getTitle = function () {
-    var title
-    var $e = this.$element
-    var o  = this.options
-
-    title = $e.attr('data-original-title')
-      || (typeof o.title == 'function' ? o.title.call($e[0]) :  o.title)
-
-    return title
-  }
-
-  Tooltip.prototype.getUID = function (prefix) {
-    do prefix += ~~(Math.random() * 1000000)
-    while (document.getElementById(prefix))
-    return prefix
-  }
-
-  Tooltip.prototype.tip = function () {
-    if (!this.$tip) {
-      this.$tip = $(this.options.template)
-      if (this.$tip.length != 1) {
-        throw new Error(this.type + ' `template` option must consist of exactly 1 top-level element!')
-      }
-    }
-    return this.$tip
-  }
-
-  Tooltip.prototype.arrow = function () {
-    return (this.$arrow = this.$arrow || this.tip().find('.tooltip-arrow'))
-  }
-
-  Tooltip.prototype.enable = function () {
-    this.enabled = true
-  }
-
-  Tooltip.prototype.disable = function () {
-    this.enabled = false
-  }
-
-  Tooltip.prototype.toggleEnabled = function () {
-    this.enabled = !this.enabled
-  }
-
-  Tooltip.prototype.toggle = function (e) {
-    var self = this
-    if (e) {
-      self = $(e.currentTarget).data('bs.' + this.type)
-      if (!self) {
-        self = new this.constructor(e.currentTarget, this.getDelegateOptions())
-        $(e.currentTarget).data('bs.' + this.type, self)
-      }
-    }
-
-    if (e) {
-      self.inState.click = !self.inState.click
-      if (self.isInStateTrue()) self.enter(self)
-      else self.leave(self)
-    } else {
-      self.tip().hasClass('in') ? self.leave(self) : self.enter(self)
-    }
-  }
-
-  Tooltip.prototype.destroy = function () {
-    var that = this
-    clearTimeout(this.timeout)
-    this.hide(function () {
-      that.$element.off('.' + that.type).removeData('bs.' + that.type)
-      if (that.$tip) {
-        that.$tip.detach()
-      }
-      that.$tip = null
-      that.$arrow = null
-      that.$viewport = null
-      that.$element = null
-    })
-  }
-
-
-  // TOOLTIP PLUGIN DEFINITION
-  // =========================
-
-  function Plugin(option) {
-    return this.each(function () {
-      var $this   = $(this)
-      var data    = $this.data('bs.tooltip')
-      var options = typeof option == 'object' && option
-
-      if (!data && /destroy|hide/.test(option)) return
-      if (!data) $this.data('bs.tooltip', (data = new Tooltip(this, options)))
-      if (typeof option == 'string') data[option]()
-    })
-  }
-
-  var old = $.fn.tooltip
-
-  $.fn.tooltip             = Plugin
-  $.fn.tooltip.Constructor = Tooltip
-
-
-  // TOOLTIP NO CONFLICT
-  // ===================
-
-  $.fn.tooltip.noConflict = function () {
-    $.fn.tooltip = old
-    return this
-  }
-
-}(jQuery);
-
-/* ========================================================================
- * Bootstrap: popover.js v3.3.7
- * http://getbootstrap.com/javascript/#popovers
- * ========================================================================
- * Copyright 2011-2016 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- * ======================================================================== */
-
-
-+function ($) {
-  'use strict';
-
-  // POPOVER PUBLIC CLASS DEFINITION
-  // ===============================
-
-  var Popover = function (element, options) {
-    this.init('popover', element, options)
-  }
-
-  if (!$.fn.tooltip) throw new Error('Popover requires tooltip.js')
-
-  Popover.VERSION  = '3.3.7'
-
-  Popover.DEFAULTS = $.extend({}, $.fn.tooltip.Constructor.DEFAULTS, {
-    placement: 'right',
-    trigger: 'click',
-    content: '',
-    template: '<div class="popover" role="tooltip"><div class="arrow"></div><h3 class="popover-title"></h3><div class="popover-content"></div></div>'
-  })
-
-
-  // NOTE: POPOVER EXTENDS tooltip.js
-  // ================================
-
-  Popover.prototype = $.extend({}, $.fn.tooltip.Constructor.prototype)
-
-  Popover.prototype.constructor = Popover
-
-  Popover.prototype.getDefaults = function () {
-    return Popover.DEFAULTS
-  }
-
-  Popover.prototype.setContent = function () {
-    var $tip    = this.tip()
-    var title   = this.getTitle()
-    var content = this.getContent()
-
-    $tip.find('.popover-title')[this.options.html ? 'html' : 'text'](title)
-    $tip.find('.popover-content').children().detach().end()[ // we use append for html objects to maintain js events
-      this.options.html ? (typeof content == 'string' ? 'html' : 'append') : 'text'
-    ](content)
-
-    $tip.removeClass('fade top bottom left right in')
-
-    // IE8 doesn't accept hiding via the `:empty` pseudo selector, we have to do
-    // this manually by checking the contents.
-    if (!$tip.find('.popover-title').html()) $tip.find('.popover-title').hide()
-  }
-
-  Popover.prototype.hasContent = function () {
-    return this.getTitle() || this.getContent()
-  }
-
-  Popover.prototype.getContent = function () {
-    var $e = this.$element
-    var o  = this.options
-
-    return $e.attr('data-content')
-      || (typeof o.content == 'function' ?
-            o.content.call($e[0]) :
-            o.content)
-  }
-
-  Popover.prototype.arrow = function () {
-    return (this.$arrow = this.$arrow || this.tip().find('.arrow'))
-  }
-
-
-  // POPOVER PLUGIN DEFINITION
-  // =========================
-
-  function Plugin(option) {
-    return this.each(function () {
-      var $this   = $(this)
-      var data    = $this.data('bs.popover')
-      var options = typeof option == 'object' && option
-
-      if (!data && /destroy|hide/.test(option)) return
-      if (!data) $this.data('bs.popover', (data = new Popover(this, options)))
-      if (typeof option == 'string') data[option]()
-    })
-  }
-
-  var old = $.fn.popover
-
-  $.fn.popover             = Plugin
-  $.fn.popover.Constructor = Popover
-
-
-  // POPOVER NO CONFLICT
-  // ===================
-
-  $.fn.popover.noConflict = function () {
-    $.fn.popover = old
-    return this
-  }
-
-}(jQuery);
-
-/* ========================================================================
- * Bootstrap: scrollspy.js v3.3.7
- * http://getbootstrap.com/javascript/#scrollspy
- * ========================================================================
- * Copyright 2011-2016 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- * ======================================================================== */
-
-
-+function ($) {
-  'use strict';
-
-  // SCROLLSPY CLASS DEFINITION
-  // ==========================
-
-  function ScrollSpy(element, options) {
-    this.$body          = $(document.body)
-    this.$scrollElement = $(element).is(document.body) ? $(window) : $(element)
-    this.options        = $.extend({}, ScrollSpy.DEFAULTS, options)
-    this.selector       = (this.options.target || '') + ' .nav li > a'
-    this.offsets        = []
-    this.targets        = []
-    this.activeTarget   = null
-    this.scrollHeight   = 0
-
-    this.$scrollElement.on('scroll.bs.scrollspy', $.proxy(this.process, this))
-    this.refresh()
-    this.process()
-  }
-
-  ScrollSpy.VERSION  = '3.3.7'
-
-  ScrollSpy.DEFAULTS = {
-    offset: 10
-  }
-
-  ScrollSpy.prototype.getScrollHeight = function () {
-    return this.$scrollElement[0].scrollHeight || Math.max(this.$body[0].scrollHeight, document.documentElement.scrollHeight)
-  }
-
-  ScrollSpy.prototype.refresh = function () {
-    var that          = this
-    var offsetMethod  = 'offset'
-    var offsetBase    = 0
-
-    this.offsets      = []
-    this.targets      = []
-    this.scrollHeight = this.getScrollHeight()
-
-    if (!$.isWindow(this.$scrollElement[0])) {
-      offsetMethod = 'position'
-      offsetBase   = this.$scrollElement.scrollTop()
-    }
-
-    this.$body
-      .find(this.selector)
-      .map(function () {
-        var $el   = $(this)
-        var href  = $el.data('target') || $el.attr('href')
-        var $href = /^#./.test(href) && $(href)
-
-        return ($href
-          && $href.length
-          && $href.is(':visible')
-          && [[$href[offsetMethod]().top + offsetBase, href]]) || null
-      })
-      .sort(function (a, b) { return a[0] - b[0] })
-      .each(function () {
-        that.offsets.push(this[0])
-        that.targets.push(this[1])
-      })
-  }
-
-  ScrollSpy.prototype.process = function () {
-    var scrollTop    = this.$scrollElement.scrollTop() + this.options.offset
-    var scrollHeight = this.getScrollHeight()
-    var maxScroll    = this.options.offset + scrollHeight - this.$scrollElement.height()
-    var offsets      = this.offsets
-    var targets      = this.targets
-    var activeTarget = this.activeTarget
-    var i
-
-    if (this.scrollHeight != scrollHeight) {
-      this.refresh()
-    }
-
-    if (scrollTop >= maxScroll) {
-      return activeTarget != (i = targets[targets.length - 1]) && this.activate(i)
-    }
-
-    if (activeTarget && scrollTop < offsets[0]) {
-      this.activeTarget = null
-      return this.clear()
-    }
-
-    for (i = offsets.length; i--;) {
-      activeTarget != targets[i]
-        && scrollTop >= offsets[i]
-        && (offsets[i + 1] === undefined || scrollTop < offsets[i + 1])
-        && this.activate(targets[i])
-    }
-  }
-
-  ScrollSpy.prototype.activate = function (target) {
-    this.activeTarget = target
-
-    this.clear()
-
-    var selector = this.selector +
-      '[data-target="' + target + '"],' +
-      this.selector + '[href="' + target + '"]'
-
-    var active = $(selector)
-      .parents('li')
-      .addClass('active')
-
-    if (active.parent('.dropdown-menu').length) {
-      active = active
-        .closest('li.dropdown')
-        .addClass('active')
-    }
-
-    active.trigger('activate.bs.scrollspy')
-  }
-
-  ScrollSpy.prototype.clear = function () {
-    $(this.selector)
-      .parentsUntil(this.options.target, '.active')
-      .removeClass('active')
-  }
-
-
-  // SCROLLSPY PLUGIN DEFINITION
-  // ===========================
-
-  function Plugin(option) {
-    return this.each(function () {
-      var $this   = $(this)
-      var data    = $this.data('bs.scrollspy')
-      var options = typeof option == 'object' && option
-
-      if (!data) $this.data('bs.scrollspy', (data = new ScrollSpy(this, options)))
-      if (typeof option == 'string') data[option]()
-    })
-  }
-
-  var old = $.fn.scrollspy
-
-  $.fn.scrollspy             = Plugin
-  $.fn.scrollspy.Constructor = ScrollSpy
-
-
-  // SCROLLSPY NO CONFLICT
-  // =====================
-
-  $.fn.scrollspy.noConflict = function () {
-    $.fn.scrollspy = old
-    return this
-  }
-
-
-  // SCROLLSPY DATA-API
-  // ==================
-
-  $(window).on('load.bs.scrollspy.data-api', function () {
-    $('[data-spy="scroll"]').each(function () {
-      var $spy = $(this)
-      Plugin.call($spy, $spy.data())
-    })
-  })
-
-}(jQuery);
-
-/* ========================================================================
- * Bootstrap: tab.js v3.3.7
- * http://getbootstrap.com/javascript/#tabs
- * ========================================================================
- * Copyright 2011-2016 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- * ======================================================================== */
-
-
-+function ($) {
-  'use strict';
-
-  // TAB CLASS DEFINITION
-  // ====================
-
-  var Tab = function (element) {
-    // jscs:disable requireDollarBeforejQueryAssignment
-    this.element = $(element)
-    // jscs:enable requireDollarBeforejQueryAssignment
-  }
-
-  Tab.VERSION = '3.3.7'
-
-  Tab.TRANSITION_DURATION = 150
-
-  Tab.prototype.show = function () {
-    var $this    = this.element
-    var $ul      = $this.closest('ul:not(.dropdown-menu)')
-    var selector = $this.data('target')
-
-    if (!selector) {
-      selector = $this.attr('href')
-      selector = selector && selector.replace(/.*(?=#[^\s]*$)/, '') // strip for ie7
-    }
-
-    if ($this.parent('li').hasClass('active')) return
-
-    var $previous = $ul.find('.active:last a')
-    var hideEvent = $.Event('hide.bs.tab', {
-      relatedTarget: $this[0]
-    })
-    var showEvent = $.Event('show.bs.tab', {
-      relatedTarget: $previous[0]
-    })
-
-    $previous.trigger(hideEvent)
-    $this.trigger(showEvent)
-
-    if (showEvent.isDefaultPrevented() || hideEvent.isDefaultPrevented()) return
-
-    var $target = $(selector)
-
-    this.activate($this.closest('li'), $ul)
-    this.activate($target, $target.parent(), function () {
-      $previous.trigger({
-        type: 'hidden.bs.tab',
-        relatedTarget: $this[0]
-      })
-      $this.trigger({
-        type: 'shown.bs.tab',
-        relatedTarget: $previous[0]
-      })
-    })
-  }
-
-  Tab.prototype.activate = function (element, container, callback) {
-    var $active    = container.find('> .active')
-    var transition = callback
-      && $.support.transition
-      && ($active.length && $active.hasClass('fade') || !!container.find('> .fade').length)
-
-    function next() {
-      $active
-        .removeClass('active')
-        .find('> .dropdown-menu > .active')
-          .removeClass('active')
-        .end()
-        .find('[data-toggle="tab"]')
-          .attr('aria-expanded', false)
-
-      element
-        .addClass('active')
-        .find('[data-toggle="tab"]')
-          .attr('aria-expanded', true)
-
-      if (transition) {
-        element[0].offsetWidth // reflow for transition
-        element.addClass('in')
-      } else {
-        element.removeClass('fade')
-      }
-
-      if (element.parent('.dropdown-menu').length) {
-        element
-          .closest('li.dropdown')
-            .addClass('active')
-          .end()
-          .find('[data-toggle="tab"]')
-            .attr('aria-expanded', true)
-      }
-
-      callback && callback()
-    }
-
-    $active.length && transition ?
-      $active
-        .one('bsTransitionEnd', next)
-        .emulateTransitionEnd(Tab.TRANSITION_DURATION) :
-      next()
-
-    $active.removeClass('in')
-  }
-
-
-  // TAB PLUGIN DEFINITION
-  // =====================
-
-  function Plugin(option) {
-    return this.each(function () {
-      var $this = $(this)
-      var data  = $this.data('bs.tab')
-
-      if (!data) $this.data('bs.tab', (data = new Tab(this)))
-      if (typeof option == 'string') data[option]()
-    })
-  }
-
-  var old = $.fn.tab
-
-  $.fn.tab             = Plugin
-  $.fn.tab.Constructor = Tab
-
-
-  // TAB NO CONFLICT
-  // ===============
-
-  $.fn.tab.noConflict = function () {
-    $.fn.tab = old
-    return this
-  }
-
-
-  // TAB DATA-API
-  // ============
-
-  var clickHandler = function (e) {
-    e.preventDefault()
-    Plugin.call($(this), 'show')
-  }
-
-  $(document)
-    .on('click.bs.tab.data-api', '[data-toggle="tab"]', clickHandler)
-    .on('click.bs.tab.data-api', '[data-toggle="pill"]', clickHandler)
-
-}(jQuery);
-
-/* ========================================================================
- * Bootstrap: affix.js v3.3.7
- * http://getbootstrap.com/javascript/#affix
- * ========================================================================
- * Copyright 2011-2016 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- * ======================================================================== */
-
-
-+function ($) {
-  'use strict';
-
-  // AFFIX CLASS DEFINITION
-  // ======================
-
-  var Affix = function (element, options) {
-    this.options = $.extend({}, Affix.DEFAULTS, options)
-
-    this.$target = $(this.options.target)
-      .on('scroll.bs.affix.data-api', $.proxy(this.checkPosition, this))
-      .on('click.bs.affix.data-api',  $.proxy(this.checkPositionWithEventLoop, this))
-
-    this.$element     = $(element)
-    this.affixed      = null
-    this.unpin        = null
-    this.pinnedOffset = null
-
-    this.checkPosition()
-  }
-
-  Affix.VERSION  = '3.3.7'
-
-  Affix.RESET    = 'affix affix-top affix-bottom'
-
-  Affix.DEFAULTS = {
-    offset: 0,
-    target: window
-  }
-
-  Affix.prototype.getState = function (scrollHeight, height, offsetTop, offsetBottom) {
-    var scrollTop    = this.$target.scrollTop()
-    var position     = this.$element.offset()
-    var targetHeight = this.$target.height()
-
-    if (offsetTop != null && this.affixed == 'top') return scrollTop < offsetTop ? 'top' : false
-
-    if (this.affixed == 'bottom') {
-      if (offsetTop != null) return (scrollTop + this.unpin <= position.top) ? false : 'bottom'
-      return (scrollTop + targetHeight <= scrollHeight - offsetBottom) ? false : 'bottom'
-    }
-
-    var initializing   = this.affixed == null
-    var colliderTop    = initializing ? scrollTop : position.top
-    var colliderHeight = initializing ? targetHeight : height
-
-    if (offsetTop != null && scrollTop <= offsetTop) return 'top'
-    if (offsetBottom != null && (colliderTop + colliderHeight >= scrollHeight - offsetBottom)) return 'bottom'
-
-    return false
-  }
-
-  Affix.prototype.getPinnedOffset = function () {
-    if (this.pinnedOffset) return this.pinnedOffset
-    this.$element.removeClass(Affix.RESET).addClass('affix')
-    var scrollTop = this.$target.scrollTop()
-    var position  = this.$element.offset()
-    return (this.pinnedOffset = position.top - scrollTop)
-  }
-
-  Affix.prototype.checkPositionWithEventLoop = function () {
-    setTimeout($.proxy(this.checkPosition, this), 1)
-  }
-
-  Affix.prototype.checkPosition = function () {
-    if (!this.$element.is(':visible')) return
-
-    var height       = this.$element.height()
-    var offset       = this.options.offset
-    var offsetTop    = offset.top
-    var offsetBottom = offset.bottom
-    var scrollHeight = Math.max($(document).height(), $(document.body).height())
-
-    if (typeof offset != 'object')         offsetBottom = offsetTop = offset
-    if (typeof offsetTop == 'function')    offsetTop    = offset.top(this.$element)
-    if (typeof offsetBottom == 'function') offsetBottom = offset.bottom(this.$element)
-
-    var affix = this.getState(scrollHeight, height, offsetTop, offsetBottom)
-
-    if (this.affixed != affix) {
-      if (this.unpin != null) this.$element.css('top', '')
-
-      var affixType = 'affix' + (affix ? '-' + affix : '')
-      var e         = $.Event(affixType + '.bs.affix')
-
-      this.$element.trigger(e)
-
-      if (e.isDefaultPrevented()) return
-
-      this.affixed = affix
-      this.unpin = affix == 'bottom' ? this.getPinnedOffset() : null
-
-      this.$element
-        .removeClass(Affix.RESET)
-        .addClass(affixType)
-        .trigger(affixType.replace('affix', 'affixed') + '.bs.affix')
-    }
-
-    if (affix == 'bottom') {
-      this.$element.offset({
-        top: scrollHeight - height - offsetBottom
-      })
-    }
-  }
-
-
-  // AFFIX PLUGIN DEFINITION
-  // =======================
-
-  function Plugin(option) {
-    return this.each(function () {
-      var $this   = $(this)
-      var data    = $this.data('bs.affix')
-      var options = typeof option == 'object' && option
-
-      if (!data) $this.data('bs.affix', (data = new Affix(this, options)))
-      if (typeof option == 'string') data[option]()
-    })
-  }
-
-  var old = $.fn.affix
-
-  $.fn.affix             = Plugin
-  $.fn.affix.Constructor = Affix
-
-
-  // AFFIX NO CONFLICT
-  // =================
-
-  $.fn.affix.noConflict = function () {
-    $.fn.affix = old
-    return this
-  }
-
-
-  // AFFIX DATA-API
-  // ==============
-
-  $(window).on('load', function () {
-    $('[data-spy="affix"]').each(function () {
-      var $spy = $(this)
-      var data = $spy.data()
-
-      data.offset = data.offset || {}
-
-      if (data.offsetBottom != null) data.offset.bottom = data.offsetBottom
-      if (data.offsetTop    != null) data.offset.top    = data.offsetTop
-
-      Plugin.call($spy, data)
-    })
-  })
-
-}(jQuery);
diff --git a/js/ie-emulation-modes-warning.js.min b/js/ie-emulation-modes-warning.js.min
deleted file mode 100644
index 3f97ba5..0000000
--- a/js/ie-emulation-modes-warning.js.min
+++ /dev/null
@@ -1,51 +0,0 @@
-// NOTICE!! DO NOT USE ANY OF THIS JAVASCRIPT
-// IT'S JUST JUNK FOR OUR DOCS!
-// ++++++++++++++++++++++++++++++++++++++++++
-/*!
- * Copyright 2014-2015 Twitter, Inc.
- *
- * Licensed under the Creative Commons Attribution 3.0 Unported License. For
- * details, see https://creativecommons.org/licenses/by/3.0/.
- */
-// Intended to prevent false-positive bug reports about Bootstrap not working properly in old versions of IE due to folks testing using IE's unreliable emulation modes.
-(function () {
-  'use strict';
-
-  function emulatedIEMajorVersion() {
-    var groups = /MSIE ([0-9.]+)/.exec(window.navigator.userAgent)
-    if (groups === null) {
-      return null
-    }
-    var ieVersionNum = parseInt(groups[1], 10)
-    var ieMajorVersion = Math.floor(ieVersionNum)
-    return ieMajorVersion
-  }
-
-  function actualNonEmulatedIEMajorVersion() {
-    // Detects the actual version of IE in use, even if it's in an older-IE emulation mode.
-    // IE JavaScript conditional compilation docs: https://msdn.microsoft.com/library/121hztk3%28v=vs.94%29.aspx
-    // @cc_on docs: https://msdn.microsoft.com/library/8ka90k2e%28v=vs.94%29.aspx
-    var jscriptVersion = new Function('/*@cc_on return @_jscript_version; @*/')() // jshint ignore:line
-    if (jscriptVersion === undefined) {
-      return 11 // IE11+ not in emulation mode
-    }
-    if (jscriptVersion < 9) {
-      return 8 // IE8 (or lower; haven't tested on IE<8)
-    }
-    return jscriptVersion // IE9 or IE10 in any mode, or IE11 in non-IE11 mode
-  }
-
-  var ua = window.navigator.userAgent
-  if (ua.indexOf('Opera') > -1 || ua.indexOf('Presto') > -1) {
-    return // Opera, which might pretend to be IE
-  }
-  var emulated = emulatedIEMajorVersion()
-  if (emulated === null) {
-    return // Not IE
-  }
-  var nonEmulated = actualNonEmulatedIEMajorVersion()
-
-  if (emulated !== nonEmulated) {
-    window.alert('WARNING: You appear to be using IE' + nonEmulated + ' in IE' + emulated + ' emulation mode.\nIE emulation modes can behave significantly differently from ACTUAL older versions of IE.\nPLEASE DON\'T FILE BOOTSTRAP BUGS based on testing in IE emulation modes!')
-  }
-})();
diff --git a/js/ie10-viewport-bug-workaround.js.min b/js/ie10-viewport-bug-workaround.js.min
deleted file mode 100644
index 479a6eb..0000000
--- a/js/ie10-viewport-bug-workaround.js.min
+++ /dev/null
@@ -1,23 +0,0 @@
-/*!
- * IE10 viewport hack for Surface/desktop Windows 8 bug
- * Copyright 2014-2015 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- */
-
-// See the Getting Started docs for more information:
-// http://getbootstrap.com/getting-started/#support-ie10-width
-
-(function () {
-  'use strict';
-
-  if (navigator.userAgent.match(/IEMobile\/10\.0/)) {
-    var msViewportStyle = document.createElement('style')
-    msViewportStyle.appendChild(
-      document.createTextNode(
-        '@-ms-viewport{width:auto!important}'
-      )
-    )
-    document.querySelector('head').appendChild(msViewportStyle)
-  }
-
-})();
diff --git a/page.jst b/page.jst
index 7dec5da..66798a7 100644
--- a/page.jst
+++ b/page.jst
@@ -40,7 +40,8 @@ return async (env, head, body, scripts) => {
       meta(name="viewport" content="width=device-width,initial-scale=1,shrink-to-fit=no") {}
 
       // Bootstrap CSS
-      link(rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.1/dist/css/bootstrap.min.css" integrity="sha384-zCbKRCUGaJDkqS1kPbPd7TveP5iyJE0EjAuZQTgFLD2ylzuqKfdKlfG/eSrtxUkn" crossorigin="anonymous") {}
+      //link(rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.1/dist/css/bootstrap.min.css" integrity="sha384-zCbKRCUGaJDkqS1kPbPd7TveP5iyJE0EjAuZQTgFLD2ylzuqKfdKlfG/eSrtxUkn" crossorigin="anonymous") {}
+      link(rel="stylesheet" href="/css/bootstrap/bootstrap.css") {}
 
       await head(_out) //title {'Hello, world!'}
     }
-- 
2.34.1