diff --git a/src/assets/scss/dashboard/bootstrap/_card.scss b/src/assets/scss/dashboard/bootstrap/_card.scss
index 4c4845c0b..c4b9a725d 100755
--- a/src/assets/scss/dashboard/bootstrap/_card.scss
+++ b/src/assets/scss/dashboard/bootstrap/_card.scss
@@ -268,3 +268,32 @@
     }
   }
 }
+
+
+//
+// Accordion
+//
+
+.accordion {
+  .card:not(:first-of-type):not(:last-of-type) {
+    border-bottom: 0;
+    border-radius: 0;
+  }
+
+  .card:not(:first-of-type) {
+    .card-header:first-child {
+      border-radius: 0;
+    }
+  }
+
+  .card:first-of-type {
+    border-bottom: 0;
+    border-bottom-right-radius: 0;
+    border-bottom-left-radius: 0;
+  }
+
+  .card:last-of-type {
+    border-top-left-radius: 0;
+    border-top-right-radius: 0;
+  }
+}
diff --git a/src/assets/scss/dashboard/bootstrap/_carousel.scss b/src/assets/scss/dashboard/bootstrap/_carousel.scss
index 72a503445..3b048e0d1 100755
--- a/src/assets/scss/dashboard/bootstrap/_carousel.scss
+++ b/src/assets/scss/dashboard/bootstrap/_carousel.scss
@@ -1,4 +1,13 @@
-// Wrapper for the slide container and indicators
+// Notes on the classes:
+//
+// 1. The .carousel-item-left and .carousel-item-right is used to indicate where
+//    the active slide is heading.
+// 2. .active.carousel-item is the current slide.
+// 3. .active.carousel-item-left and .active.carousel-item-right is the current
+//    slide in it's in-transition state. Only one of these occur at a time.
+// 4. .carousel-item-next.carousel-item-left and .carousel-item-prev.carousel-item-right
+//    is the upcoming slide in transition.
+
 .carousel {
   position: relative;
 }
@@ -31,7 +40,6 @@
   top: 0;
 }
 
-// CSS3 transforms when supported by the browser
 .carousel-item-next.carousel-item-left,
 .carousel-item-prev.carousel-item-right {
   transform: translateX(0);
@@ -60,6 +68,42 @@
 }
 
 
+//
+// Alternate transitions
+//
+
+.carousel-fade {
+  .carousel-item {
+    opacity: 0;
+    transition-duration: .6s;
+    transition-property: opacity;
+  }
+
+  .carousel-item.active,
+  .carousel-item-next.carousel-item-left,
+  .carousel-item-prev.carousel-item-right {
+    opacity: 1;
+  }
+
+  .active.carousel-item-left,
+  .active.carousel-item-right {
+    opacity: 0;
+  }
+
+  .carousel-item-next,
+  .carousel-item-prev,
+  .carousel-item.active,
+  .active.carousel-item-left,
+  .active.carousel-item-prev {
+    transform: translateX(0);
+
+    @supports (transform-style: preserve-3d) {
+      transform: translate3d(0, 0, 0);
+    }
+  }
+}
+
+
 //
 // Left/right controls for nav
 //
diff --git a/src/assets/scss/dashboard/bootstrap/_custom-forms.scss b/src/assets/scss/dashboard/bootstrap/_custom-forms.scss
index 2d83f7ea6..27de8769a 100755
--- a/src/assets/scss/dashboard/bootstrap/_custom-forms.scss
+++ b/src/assets/scss/dashboard/bootstrap/_custom-forms.scss
@@ -295,3 +295,126 @@
     @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 psuedo
+// elements cannot be mixed. As such, there are no shared styles for focus or
+// active states on prefixed selectors.
+
+.custom-range {
+  width: 100%;
+  padding-left: 0; // Firefox specific
+  background-color: transparent;
+  appearance: none;
+
+  &:focus {
+    outline: none;
+  }
+
+  &::-moz-focus-outer {
+    border: 0;
+  }
+
+  &::-webkit-slider-thumb {
+    width: $custom-range-thumb-width;
+    height: $custom-range-thumb-height;
+    margin-top: -($custom-range-thumb-width * .25); // 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);
+    appearance: none;
+
+    &:focus {
+      outline: none;
+      box-shadow: $custom-range-thumb-focus-box-shadow; // No mixin for focus accessibility
+    }
+
+    &:active {
+      @include gradient-bg($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);
+    appearance: none;
+
+    &:focus {
+      outline: none;
+      box-shadow: $custom-range-thumb-focus-box-shadow; // No mixin for focus accessibility
+    }
+
+    &:active {
+      @include gradient-bg($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: $custom-range-thumb-height;
+    @include gradient-bg($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);
+    appearance: none;
+
+    &:focus {
+      outline: none;
+      box-shadow: $custom-range-thumb-focus-box-shadow; // No mixin for focus accessibility
+    }
+
+    &:active {
+      @include gradient-bg($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);
+  }
+}
diff --git a/src/assets/scss/dashboard/bootstrap/_dropdown.scss b/src/assets/scss/dashboard/bootstrap/_dropdown.scss
index a9d4cfed2..8d96c1ba6 100755
--- a/src/assets/scss/dashboard/bootstrap/_dropdown.scss
+++ b/src/assets/scss/dashboard/bootstrap/_dropdown.scss
@@ -129,3 +129,10 @@
   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/src/assets/scss/dashboard/bootstrap/_forms.scss b/src/assets/scss/dashboard/bootstrap/_forms.scss
index b0954f8c2..c079bd5c4 100755
--- a/src/assets/scss/dashboard/bootstrap/_forms.scss
+++ b/src/assets/scss/dashboard/bootstrap/_forms.scss
@@ -121,6 +121,7 @@ select.form-control {
   padding-bottom: $input-padding-y;
   margin-bottom: 0; // match inputs if this class comes on inputs with default margins
   line-height: $input-line-height;
+  color: $input-plaintext-color;
   background-color: transparent;
   border: solid transparent;
   border-width: $input-border-width 0;
@@ -302,7 +303,8 @@ select.form-control-lg {
       display: inline-block;
     }
 
-    .input-group {
+    .input-group,
+    .custom-select {
       width: auto;
     }
 
diff --git a/src/assets/scss/dashboard/bootstrap/_functions.scss b/src/assets/scss/dashboard/bootstrap/_functions.scss
index 1266d34bd..b44d7d998 100755
--- a/src/assets/scss/dashboard/bootstrap/_functions.scss
+++ b/src/assets/scss/dashboard/bootstrap/_functions.scss
@@ -79,7 +79,7 @@
 // Request a theme color level
 @function theme-color-level($color-name: "primary", $level: 0) {
   $color: theme-color($color-name);
-  $color-base: if($level > 0, #000, #fff);
+  $color-base: if($level > 0, $black, $white);
   $level: abs($level);
 
   @return mix($color-base, $color, $level * $theme-color-interval);
diff --git a/src/assets/scss/dashboard/bootstrap/_input-group.scss b/src/assets/scss/dashboard/bootstrap/_input-group.scss
index 2f7b05d5d..78d7bc99a 100755
--- a/src/assets/scss/dashboard/bootstrap/_input-group.scss
+++ b/src/assets/scss/dashboard/bootstrap/_input-group.scss
@@ -46,9 +46,9 @@
     align-items: center;
 
     &:not(:last-child) .custom-file-label,
-    &:not(:last-child) .custom-file-label::before { @include border-right-radius(0); }
+    &:not(:last-child) .custom-file-label::after { @include border-right-radius(0); }
     &:not(:first-child) .custom-file-label,
-    &:not(:first-child) .custom-file-label::before { @include border-left-radius(0); }
+    &:not(:first-child) .custom-file-label::after { @include border-left-radius(0); }
   }
 }
 
diff --git a/src/assets/scss/dashboard/bootstrap/_pagination.scss b/src/assets/scss/dashboard/bootstrap/_pagination.scss
index 959b2eb4b..e610d27e2 100755
--- a/src/assets/scss/dashboard/bootstrap/_pagination.scss
+++ b/src/assets/scss/dashboard/bootstrap/_pagination.scss
@@ -15,6 +15,7 @@
   border: $pagination-border-width solid $pagination-border-color;
 
   &:hover {
+    z-index: 2;
     color: $pagination-hover-color;
     text-decoration: none;
     background-color: $pagination-hover-bg;
diff --git a/src/assets/scss/dashboard/bootstrap/_progress.scss b/src/assets/scss/dashboard/bootstrap/_progress.scss
index a58111689..0ac3e0c93 100755
--- a/src/assets/scss/dashboard/bootstrap/_progress.scss
+++ b/src/assets/scss/dashboard/bootstrap/_progress.scss
@@ -19,6 +19,7 @@
   justify-content: center;
   color: $progress-bar-color;
   text-align: center;
+  white-space: nowrap;
   background-color: $progress-bar-bg;
   @include transition($progress-bar-transition);
 }
diff --git a/src/assets/scss/dashboard/bootstrap/_reboot.scss b/src/assets/scss/dashboard/bootstrap/_reboot.scss
index c79fa4740..5ee563f93 100755
--- a/src/assets/scss/dashboard/bootstrap/_reboot.scss
+++ b/src/assets/scss/dashboard/bootstrap/_reboot.scss
@@ -290,7 +290,7 @@ table {
 caption {
   padding-top: $table-cell-padding;
   padding-bottom: $table-cell-padding;
-  color: $text-muted;
+  color: $table-caption-color;
   text-align: left;
   caption-side: bottom;
 }
@@ -309,7 +309,7 @@ th {
 label {
   // Allow labels to use `margin` for spacing.
   display: inline-block;
-  margin-bottom: .5rem;
+  margin-bottom: $label-margin-bottom;
 }
 
 // Remove the default `border-radius` that macOS Chrome adds.
diff --git a/src/assets/scss/dashboard/bootstrap/_tables.scss b/src/assets/scss/dashboard/bootstrap/_tables.scss
index 0e3b1198e..b32732f23 100755
--- a/src/assets/scss/dashboard/bootstrap/_tables.scss
+++ b/src/assets/scss/dashboard/bootstrap/_tables.scss
@@ -42,9 +42,9 @@
 }
 
 
-// Bordered version
+// Border versions
 //
-// Add borders all around the table and between all the columns.
+// Add or remove borders all around the table and between all the columns.
 
 .table-bordered {
   border: $table-border-width solid $table-border-color;
@@ -62,13 +62,21 @@
   }
 }
 
+.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(odd) {
+  tbody tr:nth-of-type(#{$table-striped-order}) {
     background-color: $table-accent-bg;
   }
 }
diff --git a/src/assets/scss/dashboard/bootstrap/_variables.scss b/src/assets/scss/dashboard/bootstrap/_variables.scss
index be580deb3..11f325530 100755
--- a/src/assets/scss/dashboard/bootstrap/_variables.scss
+++ b/src/assets/scss/dashboard/bootstrap/_variables.scss
@@ -132,7 +132,8 @@ $sizes: map-merge((
   25: 25%,
   50: 50%,
   75: 75%,
-  100: 100%
+  100: 100%,
+  auto: auto
 ), $sizes);
 // stylelint-enable
 
@@ -317,6 +318,9 @@ $table-dark-hover-bg:         rgba($white, .075) !default;
 $table-dark-border-color:     lighten($gray-900, 7.5%) !default;
 $table-dark-color:            $body-bg !default;
 
+$table-striped-order:         odd !default;
+
+$table-caption-color:         $text-muted !default;
 
 // Buttons + Forms
 //
@@ -380,6 +384,8 @@ $btn-transition:              color .15s ease-in-out, background-color .15s ease
 
 // Forms
 
+$label-margin-bottom:                   .5rem !default;
+
 $input-padding-y:                       $input-btn-padding-y !default;
 $input-padding-x:                       $input-btn-padding-x !default;
 $input-line-height:                     $input-btn-line-height !default;
@@ -411,6 +417,7 @@ $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;
 
@@ -480,7 +487,7 @@ $custom-select-indicator-padding:   1rem !default; // Extra padding to account f
 $custom-select-line-height:         $input-btn-line-height !default;
 $custom-select-color:               $input-color !default;
 $custom-select-disabled-color:      $gray-600 !default;
-$custom-select-bg:                  $white !default;
+$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;
@@ -498,6 +505,22 @@ $custom-select-height-sm:           $input-height-sm !default;
 $custom-select-font-size-lg:        125% !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, $input-btn-focus-box-shadow !default;
+$custom-range-thumb-active-bg:        lighten($component-active-bg, 35%) !default;
+
 $custom-file-height:                $input-height !default;
 $custom-file-focus-border-color:    $input-focus-border-color !default;
 $custom-file-focus-box-shadow:      $input-btn-focus-box-shadow !default;
@@ -585,6 +608,8 @@ $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;
 
+$nav-divider-margin-y:              ($spacer / 2) !default;
+
 // Navbar
 
 $navbar-padding-y:                  ($spacer / 2) !default;
@@ -864,7 +889,7 @@ $carousel-control-icon-width:       20px !default;
 $carousel-control-prev-icon-bg:     str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='#{$carousel-control-color}' viewBox='0 0 8 8'%3E%3Cpath d='M5.25 0l-4 4 4 4 1.5-1.5-2.5-2.5 2.5-2.5-1.5-1.5z'/%3E%3C/svg%3E"), "#", "%23") !default;
 $carousel-control-next-icon-bg:     str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='#{$carousel-control-color}' viewBox='0 0 8 8'%3E%3Cpath d='M2.75 0l-1.5 1.5 2.5 2.5-2.5 2.5 1.5 1.5 4-4-4-4z'/%3E%3C/svg%3E"), "#", "%23") !default;
 
-$carousel-transition:               transform .6s ease !default;
+$carousel-transition:               transform .6s ease !default; // Define transform transition first if using multiple transitons (e.g., `transform 2s ease, opacity .5s ease-out`)
 
 
 // Close
diff --git a/src/assets/scss/dashboard/bootstrap/mixins/_hover.scss b/src/assets/scss/dashboard/bootstrap/mixins/_hover.scss
index ec2e328a4..57823e34b 100755
--- a/src/assets/scss/dashboard/bootstrap/mixins/_hover.scss
+++ b/src/assets/scss/dashboard/bootstrap/mixins/_hover.scss
@@ -1,9 +1,7 @@
-// stylelint-disable indentation
-
 // Hover mixin and `$enable-hover-media-query` are deprecated.
 //
 // Origally added during our alphas and maintained during betas, this mixin was
-// designed to prevent `:hover` stickiness on iOS—an issue where hover styles
+// 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
diff --git a/src/assets/scss/dashboard/bootstrap/mixins/_nav-divider.scss b/src/assets/scss/dashboard/bootstrap/mixins/_nav-divider.scss
index 493de03a3..3505d412f 100755
--- a/src/assets/scss/dashboard/bootstrap/mixins/_nav-divider.scss
+++ b/src/assets/scss/dashboard/bootstrap/mixins/_nav-divider.scss
@@ -2,9 +2,9 @@
 //
 // Dividers (basically an hr) within dropdowns and nav lists
 
-@mixin nav-divider($color: #e5e5e5) {
+@mixin nav-divider($color: #e5e5e5, $margin-y: $nav-divider-margin-y) {
   height: 0;
-  margin: ($spacer / 2) 0;
+  margin: $margin-y 0;
   overflow: hidden;
   border-top: 1px solid $color;
 }
diff --git a/src/assets/scss/dashboard/bootstrap/mixins/_screen-reader.scss b/src/assets/scss/dashboard/bootstrap/mixins/_screen-reader.scss
index 8f3eb1b19..f9cd35cff 100755
--- a/src/assets/scss/dashboard/bootstrap/mixins/_screen-reader.scss
+++ b/src/assets/scss/dashboard/bootstrap/mixins/_screen-reader.scss
@@ -11,7 +11,6 @@
   overflow: hidden;
   clip: rect(0, 0, 0, 0);
   white-space: nowrap;
-  clip-path: inset(50%);
   border: 0;
 }
 
@@ -30,6 +29,5 @@
     overflow: visible;
     clip: auto;
     white-space: normal;
-    clip-path: none;
   }
 }
diff --git a/src/assets/scss/dashboard/bootstrap/utilities/_flex.scss b/src/assets/scss/dashboard/bootstrap/utilities/_flex.scss
index 8e4703843..1f898c1b1 100755
--- a/src/assets/scss/dashboard/bootstrap/utilities/_flex.scss
+++ b/src/assets/scss/dashboard/bootstrap/utilities/_flex.scss
@@ -16,6 +16,7 @@
     .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; }
 
     .justify-content#{$infix}-start   { justify-content: flex-start !important; }
     .justify-content#{$infix}-end     { justify-content: flex-end !important; }
diff --git a/src/assets/scss/dashboard/bootstrap/utilities/_position.scss b/src/assets/scss/dashboard/bootstrap/utilities/_position.scss
index ef962eddb..9ecdeeb9b 100755
--- a/src/assets/scss/dashboard/bootstrap/utilities/_position.scss
+++ b/src/assets/scss/dashboard/bootstrap/utilities/_position.scss
@@ -3,6 +3,7 @@
 // Common values
 
 // Sass list not in variables since it's not intended for customization.
+// stylelint-disable-next-line scss/dollar-variable-default
 $positions: static, relative, absolute, fixed, sticky;
 
 @each $position in $positions {