update _variables.scss with bootstrap v5.0.0-alpha3

* copy the _variables.scss from bootstrap v5.0.0-alpha3
* use code formatter
diff --git a/tobago-core/npm/scss/_variables.scss b/tobago-core/npm/scss/_variables.scss
index 9d548cb..8db8b8a 100644
--- a/tobago-core/npm/scss/_variables.scss
+++ b/tobago-core/npm/scss/_variables.scss
@@ -19,7 +19,14 @@
 XXX used variables: only for the IDE, will not be used by the build system, because this
 XXX code will be inserted after bootstraps _variables.scss
 */
-$white:    #fff !default;
+// Variables
+//
+// Variables should follow the `$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;
@@ -29,7 +36,9 @@
 $gray-700: #495057 !default;
 $gray-800: #343a40 !default;
 $gray-900: #212529 !default;
-$black:    #000 !default;
+$black: #000 !default;
+
+// fusv-disable
 $grays: (
         "100": $gray-100,
         "200": $gray-200,
@@ -41,164 +50,213 @@
         "800": $gray-800,
         "900": $gray-900
 ) !default;
-$blue:    #0d6efd !default;
-$indigo:  #6610f2 !default;
-$purple:  #6f42c1 !default;
-$pink:    #d63384 !default;
-$red:     #dc3545 !default;
-$orange:  #fd7e14 !default;
-$yellow:  #ffc107 !default;
-$green:   #28a745 !default;
-$teal:    #20c997 !default;
-$cyan:    #17a2b8 !default;
+// fusv-enable
+
+$blue: #0d6efd !default;
+$indigo: #6610f2 !default;
+$purple: #6f42c1 !default;
+$pink: #d63384 !default;
+$red: #dc3545 !default;
+$orange: #fd7e14 !default;
+$yellow: #ffc107 !default;
+$green: #198754 !default;
+$teal: #20c997 !default;
+$cyan: #0dcaf0 !default;
+
+// scss-docs-start colors-map
 $colors: (
-        "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
+        "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": $gray-800
 ) !default;
-$primary:       $blue !default;
-$secondary:     $gray-600 !default;
-$success:       $green !default;
-$info:          $cyan !default;
-$warning:       $yellow !default;
-$danger:        $red !default;
-$light:         $gray-100 !default;
-$dark:          $gray-800 !default;
+// scss-docs-end colors-map
+
+$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-900 !default;
+
+// scss-docs-start theme-colors-map
 $theme-colors: (
-        "primary":    $primary,
-        "secondary":  $secondary,
-        "success":    $success,
-        "info":       $info,
-        "warning":    $warning,
-        "danger":     $danger,
-        "light":      $light,
-        "dark":       $dark
+        "primary": $primary,
+        "secondary": $secondary,
+        "success": $success,
+        "info": $info,
+        "warning": $warning,
+        "danger": $danger,
+        "light": $light,
+        "dark": $dark
 ) !default;
-$theme-color-interval: 8% !default;
-$min-contrast-ratio:   3 !default;
-$color-contrast-dark:      $gray-900 !default;
-$color-contrast-light:     $white !default;
-$blue-100: tint-color($blue, 8) !default;
-$blue-200: tint-color($blue, 6) !default;
-$blue-300: tint-color($blue, 4) !default;
-$blue-400: tint-color($blue, 2) !default;
+// scss-docs-end theme-colors-map
+
+// The contrast ratio to reach against white, to determine if color changes from "light" to "dark". Acceptable values for WCAG 2.0 are 3, 4.5 and 7.
+// See https://www.w3.org/TR/WCAG20/#visual-audio-contrast-contrast
+$min-contrast-ratio: 4.5 !default;
+
+// Customize the light and dark text colors for use in our color contrast function.
+$color-contrast-dark: $black !default;
+$color-contrast-light: $white !default;
+
+// fusv-disable
+$blue-100: tint-color($blue, 80%) !default;
+$blue-200: tint-color($blue, 60%) !default;
+$blue-300: tint-color($blue, 40%) !default;
+$blue-400: tint-color($blue, 20%) !default;
 $blue-500: $blue !default;
-$blue-600: shade-color($blue, 2) !default;
-$blue-700: shade-color($blue, 4) !default;
-$blue-800: shade-color($blue, 6) !default;
-$blue-900: shade-color($blue, 8) !default;
-$indigo-100: tint-color($indigo, 8) !default;
-$indigo-200: tint-color($indigo, 6) !default;
-$indigo-300: tint-color($indigo, 4) !default;
-$indigo-400: tint-color($indigo, 2) !default;
+$blue-600: shade-color($blue, 20%) !default;
+$blue-700: shade-color($blue, 40%) !default;
+$blue-800: shade-color($blue, 60%) !default;
+$blue-900: shade-color($blue, 80%) !default;
+
+$indigo-100: tint-color($indigo, 80%) !default;
+$indigo-200: tint-color($indigo, 60%) !default;
+$indigo-300: tint-color($indigo, 40%) !default;
+$indigo-400: tint-color($indigo, 20%) !default;
 $indigo-500: $indigo !default;
-$indigo-600: shade-color($indigo, 2) !default;
-$indigo-700: shade-color($indigo, 4) !default;
-$indigo-800: shade-color($indigo, 6) !default;
-$indigo-900: shade-color($indigo, 8) !default;
-$purple-100: tint-color($purple, 8) !default;
-$purple-200: tint-color($purple, 6) !default;
-$purple-300: tint-color($purple, 4) !default;
-$purple-400: tint-color($purple, 2) !default;
+$indigo-600: shade-color($indigo, 20%) !default;
+$indigo-700: shade-color($indigo, 40%) !default;
+$indigo-800: shade-color($indigo, 60%) !default;
+$indigo-900: shade-color($indigo, 80%) !default;
+
+$purple-100: tint-color($purple, 80%) !default;
+$purple-200: tint-color($purple, 60%) !default;
+$purple-300: tint-color($purple, 40%) !default;
+$purple-400: tint-color($purple, 20%) !default;
 $purple-500: $purple !default;
-$purple-600: shade-color($purple, 2) !default;
-$purple-700: shade-color($purple, 4) !default;
-$purple-800: shade-color($purple, 6) !default;
-$purple-900: shade-color($purple, 8) !default;
-$pink-100: tint-color($pink, 8) !default;
-$pink-200: tint-color($pink, 6) !default;
-$pink-300: tint-color($pink, 4) !default;
-$pink-400: tint-color($pink, 2) !default;
+$purple-600: shade-color($purple, 20%) !default;
+$purple-700: shade-color($purple, 40%) !default;
+$purple-800: shade-color($purple, 60%) !default;
+$purple-900: shade-color($purple, 80%) !default;
+
+$pink-100: tint-color($pink, 80%) !default;
+$pink-200: tint-color($pink, 60%) !default;
+$pink-300: tint-color($pink, 40%) !default;
+$pink-400: tint-color($pink, 20%) !default;
 $pink-500: $pink !default;
-$pink-600: shade-color($pink, 2) !default;
-$pink-700: shade-color($pink, 4) !default;
-$pink-800: shade-color($pink, 6) !default;
-$pink-900: shade-color($pink, 8) !default;
-$red-100: tint-color($red, 8) !default;
-$red-200: tint-color($red, 6) !default;
-$red-300: tint-color($red, 4) !default;
-$red-400: tint-color($red, 2) !default;
+$pink-600: shade-color($pink, 20%) !default;
+$pink-700: shade-color($pink, 40%) !default;
+$pink-800: shade-color($pink, 60%) !default;
+$pink-900: shade-color($pink, 80%) !default;
+
+$red-100: tint-color($red, 80%) !default;
+$red-200: tint-color($red, 60%) !default;
+$red-300: tint-color($red, 40%) !default;
+$red-400: tint-color($red, 20%) !default;
 $red-500: $red !default;
-$red-600: shade-color($red, 2) !default;
-$red-700: shade-color($red, 4) !default;
-$red-800: shade-color($red, 6) !default;
-$red-900: shade-color($red, 8) !default;
-$orange-100: tint-color($orange, 8) !default;
-$orange-200: tint-color($orange, 6) !default;
-$orange-300: tint-color($orange, 4) !default;
-$orange-400: tint-color($orange, 2) !default;
+$red-600: shade-color($red, 20%) !default;
+$red-700: shade-color($red, 40%) !default;
+$red-800: shade-color($red, 60%) !default;
+$red-900: shade-color($red, 80%) !default;
+
+$orange-100: tint-color($orange, 80%) !default;
+$orange-200: tint-color($orange, 60%) !default;
+$orange-300: tint-color($orange, 40%) !default;
+$orange-400: tint-color($orange, 20%) !default;
 $orange-500: $orange !default;
-$orange-600: shade-color($orange, 2) !default;
-$orange-700: shade-color($orange, 4) !default;
-$orange-800: shade-color($orange, 6) !default;
-$orange-900: shade-color($orange, 8) !default;
-$yellow-100: tint-color($yellow, 8) !default;
-$yellow-200: tint-color($yellow, 6) !default;
-$yellow-300: tint-color($yellow, 4) !default;
-$yellow-400: tint-color($yellow, 2) !default;
+$orange-600: shade-color($orange, 20%) !default;
+$orange-700: shade-color($orange, 40%) !default;
+$orange-800: shade-color($orange, 60%) !default;
+$orange-900: shade-color($orange, 80%) !default;
+
+$yellow-100: tint-color($yellow, 80%) !default;
+$yellow-200: tint-color($yellow, 60%) !default;
+$yellow-300: tint-color($yellow, 40%) !default;
+$yellow-400: tint-color($yellow, 20%) !default;
 $yellow-500: $yellow !default;
-$yellow-600: shade-color($yellow, 2) !default;
-$yellow-700: shade-color($yellow, 4) !default;
-$yellow-800: shade-color($yellow, 6) !default;
-$yellow-900: shade-color($yellow, 8) !default;
-$green-100: tint-color($green, 8) !default;
-$green-200: tint-color($green, 6) !default;
-$green-300: tint-color($green, 4) !default;
-$green-400: tint-color($green, 2) !default;
+$yellow-600: shade-color($yellow, 20%) !default;
+$yellow-700: shade-color($yellow, 40%) !default;
+$yellow-800: shade-color($yellow, 60%) !default;
+$yellow-900: shade-color($yellow, 80%) !default;
+
+$green-100: tint-color($green, 80%) !default;
+$green-200: tint-color($green, 60%) !default;
+$green-300: tint-color($green, 40%) !default;
+$green-400: tint-color($green, 20%) !default;
 $green-500: $green !default;
-$green-600: shade-color($green, 2) !default;
-$green-700: shade-color($green, 4) !default;
-$green-800: shade-color($green, 6) !default;
-$green-900: shade-color($green, 8) !default;
-$teal-100: tint-color($teal, 8) !default;
-$teal-200: tint-color($teal, 6) !default;
-$teal-300: tint-color($teal, 4) !default;
-$teal-400: tint-color($teal, 2) !default;
+$green-600: shade-color($green, 20%) !default;
+$green-700: shade-color($green, 40%) !default;
+$green-800: shade-color($green, 60%) !default;
+$green-900: shade-color($green, 80%) !default;
+
+$teal-100: tint-color($teal, 80%) !default;
+$teal-200: tint-color($teal, 60%) !default;
+$teal-300: tint-color($teal, 40%) !default;
+$teal-400: tint-color($teal, 20%) !default;
 $teal-500: $teal !default;
-$teal-600: shade-color($teal, 2) !default;
-$teal-700: shade-color($teal, 4) !default;
-$teal-800: shade-color($teal, 6) !default;
-$teal-900: shade-color($teal, 8) !default;
-$cyan-100: tint-color($cyan, 8) !default;
-$cyan-200: tint-color($cyan, 6) !default;
-$cyan-300: tint-color($cyan, 4) !default;
-$cyan-400: tint-color($cyan, 2) !default;
+$teal-600: shade-color($teal, 20%) !default;
+$teal-700: shade-color($teal, 40%) !default;
+$teal-800: shade-color($teal, 60%) !default;
+$teal-900: shade-color($teal, 80%) !default;
+
+$cyan-100: tint-color($cyan, 80%) !default;
+$cyan-200: tint-color($cyan, 60%) !default;
+$cyan-300: tint-color($cyan, 40%) !default;
+$cyan-400: tint-color($cyan, 20%) !default;
 $cyan-500: $cyan !default;
-$cyan-600: shade-color($cyan, 2) !default;
-$cyan-700: shade-color($cyan, 4) !default;
-$cyan-800: shade-color($cyan, 6) !default;
-$cyan-900: shade-color($cyan, 8) !default;
+$cyan-600: shade-color($cyan, 20%) !default;
+$cyan-700: shade-color($cyan, 40%) !default;
+$cyan-800: shade-color($cyan, 60%) !default;
+$cyan-900: shade-color($cyan, 80%) !default;
+// fusv-enable
+
+// Characters which are escaped by the escape-svg function
 $escaped-characters: (
-                ("<","%3c"),
-                (">","%3e"),
-                ("#","%23"),
-                ("(","%28"),
-                (")","%29"),
+                ("<", "%3c"),
+                (">", "%3e"),
+                ("#", "%23"),
+                ("(", "%28"),
+                (")", "%29"),
 ) !default;
-$enable-caret:                true !default;
-$enable-rounded:              true !default;
-$enable-shadows:              false !default;
-$enable-gradients:            false !default;
-$enable-transitions:          true !default;
-$enable-reduced-motion:       true !default;
-$enable-grid-classes:         true !default;
-$enable-button-pointers:      true !default;
-$enable-rfs:                  true !default;
-$enable-validation-icons:     true !default;
-$enable-negative-margins:     false !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-reduced-motion: true !default;
+$enable-smooth-scroll: true !default;
+$enable-grid-classes: true !default;
+$enable-button-pointers: true !default;
+$enable-rfs: true !default;
+$enable-validation-icons: true !default;
+$enable-negative-margins: false !default;
 $enable-deprecation-messages: true !default;
-$enable-important-utilities:  true !default;
+$enable-important-utilities: true !default;
+
+// Prefix for :root CSS variables
+
+$variable-prefix: bs- !default;
+
+// Gradient
+//
+// The gradient which is added to components if `$enable-gradients` is `true`
+// This gradient is also added to elements with `.bg-gradient`
 $gradient: linear-gradient(180deg, rgba($white, .15), rgba($white, 0)) !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: (
         0: 0,
@@ -208,18 +266,55 @@
         4: $spacer * 1.5,
         5: $spacer * 3,
 ) !default;
+
 $negative-spacers: if($enable-negative-margins, negativify-map($spacers), null) !default;
-$body-bg:                   $white !default;
-$body-color:                $gray-900 !default;
-$body-text-align:           null !default;
-$link-color:                              $primary !default;
-$link-decoration:                         underline !default;
-$link-hover-color:                        darken($link-color, 15%) !default;
-$link-hover-decoration:                   null !default;
-$emphasized-link-hover-darken-percentage: 15% !default;
-$stretched-link-pseudo-element:           after !default;
-$stretched-link-z-index:                  1 !default;
-$paragraph-margin-bottom:   1rem !default;
+
+// Position
+//
+// Define the edge positioning anchors of the position utilities.
+
+$position-values: (
+        0: 0,
+        50: 50%,
+        100: 100%
+) !default;
+
+
+// Body
+//
+// Settings for the `<body>` element.
+
+$body-bg: $white !default;
+$body-color: $gray-900 !default;
+$body-text-align: null !default;
+
+
+// Links
+//
+// Style anchor elements.
+
+$link-color: $primary !default;
+$link-decoration: underline !default;
+$link-shade-percentage: 20% !default;
+$link-hover-color: scale-color($link-color, $link-shade-percentage) !default;
+$link-hover-decoration: null !default;
+
+$stretched-link-pseudo-element: after !default;
+$stretched-link-z-index: 1 !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.
+
+// scss-docs-start grid-breakpoints
 $grid-breakpoints: (
         xs: 0,
         sm: 576px,
@@ -228,8 +323,17 @@
         xl: 1200px,
         xxl: 1400px
 ) !default;
+// scss-docs-end grid-breakpoints
+
 @include _assert-ascending($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.
+
+// scss-docs-start container-max-widths
 $container-max-widths: (
         sm: 540px,
         md: 720px,
@@ -237,77 +341,130 @@
         xl: 1140px,
         xxl: 1320px
 ) !default;
+// scss-docs-end container-max-widths
+
 @include _assert-ascending($container-max-widths, "$container-max-widths");
-$grid-columns:                12 !default;
-$grid-gutter-width:           1.5rem !default;
-$grid-row-columns:            6 !default;
+
+
+// Grid columns
+//
+// Set the number of columns and specify the width of the gutters.
+
+$grid-columns: 12 !default;
+$grid-gutter-width: 1.5rem !default;
+$grid-row-columns: 6 !default;
+
 $gutters: $spacers !default;
-$container-padding-x: 1rem !default;
-$border-width:                1px !default;
-$border-color:                $gray-300 !default;
-$border-radius:               .25rem !default;
-$border-radius-sm:            .2rem !default;
-$border-radius-lg:            .3rem !default;
-$rounded-pill:                50rem !default;
-$box-shadow:                  0 .5rem 1rem rgba($black, .15) !default;
-$box-shadow-sm:               0 .125rem .25rem rgba($black, .075) !default;
-$box-shadow-lg:               0 1rem 3rem rgba($black, .175) !default;
-$box-shadow-inset:            inset 0 1px 2px rgba($black, .075) !default;
-$component-active-color:      $white !default;
-$component-active-bg:         $primary !default;
-$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;
-$embed-responsive-aspect-ratios: (
-        "21by9": (
-                x: 21,
-                y: 9
-        ),
-        "16by9": (
-                x: 16,
-                y: 9
-        ),
-        "4by3": (
-                x: 4,
-                y: 3
-        ),
-        "1by1": (
-                x: 1,
-                y: 1
-        )
+
+// Container padding
+
+$container-padding-x: $grid-gutter-width !default;
+
+
+// Components
+//
+// Define common padding and border radius sizes and more.
+
+$border-width: 1px !default;
+$border-widths: (
+        0: 0,
+        1: 1px,
+        2: 2px,
+        3: 3px,
+        4: 4px,
+        5: 5px
 ) !default;
-$font-family-sans-serif:      system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto 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:            var(--bs-font-sans-serif) !default;
-$font-family-code:            var(--bs-font-monospace) !default;
-$font-size-root:              null !default;
-$font-size-base:              1rem !default; // Assumes the browser default, typically `16px`
-$font-size-sm:                $font-size-base * .875 !default;
-$font-size-lg:                $font-size-base * 1.25 !default;
-$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;
-$line-height-sm:              1.25 !default;
-$line-height-lg:              2 !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:      $spacer / 2 !default;
-$headings-font-family:        null !default;
-$headings-font-style:         null !default;
-$headings-font-weight:        500 !default;
-$headings-line-height:        1.2 !default;
-$headings-color:              null !default;
+
+$border-color: $gray-300 !default;
+
+$border-radius: .25rem !default;
+$border-radius-sm: .2rem !default;
+$border-radius-lg: .3rem !default;
+$border-radius-pill: 50rem !default;
+
+$box-shadow: 0 .5rem 1rem rgba($black, .15) !default;
+$box-shadow-sm: 0 .125rem .25rem rgba($black, .075) !default;
+$box-shadow-lg: 0 1rem 3rem rgba($black, .175) !default;
+$box-shadow-inset: inset 0 1px 2px rgba($black, .075) !default;
+
+$component-active-color: $white !default;
+$component-active-bg: $primary !default;
+
+$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;
+
+// stylelint-disable function-disallowed-list
+// scss-docs-start aspect-ratios
+$aspect-ratios: (
+        "1x1": 100%,
+        "4x3": calc(3 / 4 * 100%),
+        "16x9": calc(9 / 16 * 100%),
+        "21x9": calc(9 / 21 * 100%)
+) !default;
+// scss-docs-end aspect-ratios
+// stylelint-enable function-disallowed-list
+
+// Typography
+//
+// Font, line-height, and color for body text, headings, and more.
+
+// stylelint-disable value-keyword-case
+$font-family-sans-serif: system-ui, -apple-system, "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;
+$font-family-monospace: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace !default;
+// stylelint-enable value-keyword-case
+$font-family-base: var(--#{$variable-prefix}font-sans-serif) !default;
+$font-family-code: var(--#{$variable-prefix}font-monospace) !default;
+
+// $font-size-root effects the value of `rem`, which is used for as well font sizes, paddings and margins
+// $font-size-base effects the font size of the body text
+$font-size-root: null !default;
+$font-size-base: 1rem !default; // Assumes the browser default, typically `16px`
+$font-size-sm: $font-size-base * .875 !default;
+$font-size-lg: $font-size-base * 1.25 !default;
+
+$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;
+$line-height-sm: 1.25 !default;
+$line-height-lg: 2 !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: $font-size-base !default;
+
+// scss-docs-start font-sizes
+$font-sizes: (
+        1: $h1-font-size,
+        2: $h2-font-size,
+        3: $h3-font-size,
+        4: $h4-font-size,
+        5: $h5-font-size,
+        6: $h6-font-size
+) !default;
+// scss-docs-end font-sizes
+
+$headings-margin-bottom: $spacer / 2 !default;
+$headings-font-family: null !default;
+$headings-font-style: null !default;
+$headings-font-weight: 500 !default;
+$headings-line-height: 1.2 !default;
+$headings-color: null !default;
+
+// scss-docs-start display-headings
 $display-font-sizes: (
         1: 5rem,
         2: 4.5rem,
@@ -316,277 +473,369 @@
         5: 3rem,
         6: 2.5rem
 ) !default;
+
 $display-font-weight: 300 !default;
 $display-line-height: $headings-line-height !default;
-$lead-font-size:              $font-size-base * 1.25 !default;
-$lead-font-weight:            300 !default;
-$small-font-size:             .875em !default;
-$sub-sup-font-size:           .75em !default;
-$text-muted:                  $gray-600 !default;
-$initialism-font-size:        $small-font-size !default;
-$blockquote-margin-y:         $spacer !default;
-$blockquote-font-size:        $font-size-base * 1.25 !default;
-$blockquote-footer-color:     $gray-600 !default;
+// scss-docs-end display-headings
+
+$lead-font-size: $font-size-base * 1.25 !default;
+$lead-font-weight: 300 !default;
+
+$small-font-size: .875em !default;
+
+$sub-sup-font-size: .75em !default;
+
+$text-muted: $gray-600 !default;
+
+$initialism-font-size: $small-font-size !default;
+
+$blockquote-margin-y: $spacer !default;
+$blockquote-font-size: $font-size-base * 1.25 !default;
+$blockquote-footer-color: $gray-600 !default;
 $blockquote-footer-font-size: $small-font-size !default;
-$hr-margin-y:                 $spacer !default;
-$hr-color:                    inherit !default;
-$hr-height:                   $border-width !default;
-$hr-opacity:                  .25 !default;
-$legend-margin-bottom:        .5rem !default;
-$legend-font-size:            1.5rem !default;
-$legend-font-weight:          null !default;
-$mark-padding:                .2em !default;
-$dt-font-weight:              $font-weight-bold !default;
-$nested-kbd-font-weight:      $font-weight-bold !default;
-$list-inline-padding:         .5rem !default;
-$mark-bg:                     #fcf8e3 !default;
-$table-cell-padding-y:        .5rem !default;
-$table-cell-padding-x:        .5rem !default;
-$table-cell-padding-y-sm:     .25rem !default;
-$table-cell-padding-x-sm:     .25rem !default;
-$table-cell-vertical-align:   top !default;
-$table-color:                 $body-color !default;
-$table-bg:                    transparent !default;
-$table-striped-color:         $table-color !default;
-$table-striped-bg-factor:     .05 !default;
-$table-striped-bg:            rgba($black, $table-striped-bg-factor) !default;
-$table-active-color:          $table-color !default;
-$table-active-bg-factor:      .1 !default;
-$table-active-bg:             rgba($black, $table-active-bg-factor) !default;
-$table-hover-color:           $table-color !default;
-$table-hover-bg-factor:       .075 !default;
-$table-hover-bg:              rgba($black, $table-hover-bg-factor) !default;
-$table-border-factor:         .1 !default;
-$table-border-width:          $border-width !default;
-$table-border-color:          $border-color !default;
-$table-striped-order:         odd !default;
-$table-group-seperator-color: currentColor !default;
-$table-caption-color:         $text-muted !default;
-$table-bg-level:              -9 !default;
+
+$hr-margin-y: $spacer !default;
+$hr-color: inherit !default;
+$hr-height: $border-width !default;
+$hr-opacity: .25 !default;
+
+$legend-margin-bottom: .5rem !default;
+$legend-font-size: 1.5rem !default;
+$legend-font-weight: null !default;
+
+$mark-padding: .2em !default;
+
+$dt-font-weight: $font-weight-bold !default;
+
+$nested-kbd-font-weight: $font-weight-bold !default;
+
+$list-inline-padding: .5rem !default;
+
+$mark-bg: #fcf8e3 !default;
+
+
+// Tables
+//
+// Customizes the `.table` component with basic values, each used across all table variations.
+
+// scss-docs-start table-variables
+$table-cell-padding-y: .5rem !default;
+$table-cell-padding-x: .5rem !default;
+$table-cell-padding-y-sm: .25rem !default;
+$table-cell-padding-x-sm: .25rem !default;
+
+$table-cell-vertical-align: top !default;
+
+$table-color: $body-color !default;
+$table-bg: transparent !default;
+
+$table-th-font-weight: null !default;
+
+$table-striped-color: $table-color !default;
+$table-striped-bg-factor: .05 !default;
+$table-striped-bg: rgba($black, $table-striped-bg-factor) !default;
+
+$table-active-color: $table-color !default;
+$table-active-bg-factor: .1 !default;
+$table-active-bg: rgba($black, $table-active-bg-factor) !default;
+
+$table-hover-color: $table-color !default;
+$table-hover-bg-factor: .075 !default;
+$table-hover-bg: rgba($black, $table-hover-bg-factor) !default;
+
+$table-border-factor: .1 !default;
+$table-border-width: $border-width !default;
+$table-border-color: $border-color !default;
+
+$table-striped-order: odd !default;
+
+$table-group-separator-color: currentColor !default;
+
+$table-caption-color: $text-muted !default;
+
+$table-bg-scale: -80% !default;
+
 $table-variants: (
-        "primary":    color-level($primary, $table-bg-level),
-        "secondary":  color-level($secondary, $table-bg-level),
-        "success":    color-level($success, $table-bg-level),
-        "info":       color-level($info, $table-bg-level),
-        "warning":    color-level($warning, $table-bg-level),
-        "danger":     color-level($danger, $table-bg-level),
-        "light":      $light,
-        "dark":       $dark,
+        "primary": scale-color($primary, $table-bg-scale),
+        "secondary": scale-color($secondary, $table-bg-scale),
+        "success": scale-color($success, $table-bg-scale),
+        "info": scale-color($info, $table-bg-scale),
+        "warning": scale-color($warning, $table-bg-scale),
+        "danger": scale-color($danger, $table-bg-scale),
+        "light": $light,
+        "dark": $dark,
 ) !default;
-$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;
+// scss-docs-end table-variables
+
+
+// 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: .25rem !default;
 $input-btn-focus-color-opacity: .25 !default;
-$input-btn-focus-color:         rgba($component-active-bg, $input-btn-focus-color-opacity) !default;
-$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-padding-y-lg:      .5rem !default;
-$input-btn-padding-x-lg:      1rem !default;
-$input-btn-font-size-lg:      $font-size-lg !default;
-$input-btn-border-width:      $border-width !default;
-$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-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-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-color:              $link-color !default;
-$btn-link-hover-color:        $link-hover-color !default;
-$btn-link-disabled-color:     $gray-600 !default;
-$btn-block-spacing-y:         .5rem !default;
-$btn-border-radius:           $border-radius !default;
-$btn-border-radius-sm:        $border-radius-sm !default;
-$btn-border-radius-lg:        $border-radius-lg !default;
-$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;
-$form-text-margin-top:                  .25rem !default;
-$form-text-font-size:                   $small-font-size !default;
-$form-text-font-style:                  null !default;
-$form-text-font-weight:                 null !default;
-$form-text-color:                       $text-muted !default;
-$form-label-margin-bottom:              .5rem !default;
-$form-label-font-size:                  null !default;
-$form-label-font-style:                 null !default;
-$form-label-font-weight:                null !default;
-$form-label-color:                      null !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-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-bg:                              $white !default;
-$input-disabled-bg:                     $gray-200 !default;
-$input-disabled-border-color:           null !default;
-$input-color:                           $gray-700 !default;
-$input-border-color:                    $gray-400 !default;
-$input-border-width:                    $input-btn-border-width !default;
-$input-box-shadow:                      $box-shadow-inset !default;
-$input-border-radius:                   $border-radius !default;
-$input-border-radius-sm:                $border-radius-sm !default;
-$input-border-radius-lg:                $border-radius-lg !default;
-$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, $input-padding-y / 2) !default;
-$input-height:                          add($input-line-height * 1em, add($input-padding-y * 2, $input-height-border, false)) !default;
-$input-height-sm:                       add($input-line-height * 1em, add($input-padding-y-sm * 2, $input-height-border, false)) !default;
-$input-height-lg:                       add($input-line-height * 1em, add($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;
-$form-check-input-width:                  1.25em !default;
-$form-check-min-height:                   $font-size-base * $line-height-base !default;
-$form-check-padding-left:                 $form-check-input-width + .5em !default;
-$form-check-margin-bottom:                .125rem !default;
-$form-check-label-color:                  null !default;
-$form-check-label-cursor:                 null !default;
-$form-check-transition:                   background-color .15s ease-in-out, background-position .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out !default;
-$form-check-input-active-filter:          brightness(90%) !default;
-$form-check-input-bg:                     $body-bg !default;
-$form-check-input-border:                 1px solid rgba(0, 0, 0, .25) !default;
-$form-check-input-border-radius:          .25em !default;
-$form-check-radio-border-radius:          50% !default;
-$form-check-input-focus-border:           $input-focus-border-color !default;
-$form-check-input-focus-box-shadow:       $input-btn-focus-box-shadow !default;
-$form-check-input-checked-color:          $component-active-color !default;
-$form-check-input-checked-bg-color:       $component-active-bg !default;
-$form-check-input-checked-border-color:   $form-check-input-checked-bg-color !default;
-$form-check-input-checked-bg-image:       url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'><path fill='none' stroke='#{$form-check-input-checked-color}' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10l3 3l6-6'/></svg>") !default;
-$form-check-radio-checked-bg-image:       url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='2' fill='#{$form-check-input-checked-color}'/></svg>") !default;
-$form-check-input-indeterminate-color:          $component-active-color !default;
-$form-check-input-indeterminate-bg-color:       $component-active-bg !default;
-$form-check-input-indeterminate-border-color:   $form-check-input-indeterminate-bg-color !default;
-$form-check-input-indeterminate-bg-image:       url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'><path fill='none' stroke='#{$form-check-input-indeterminate-color}' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10h8'/></svg>") !default;
-$form-switch-color:               rgba(0, 0, 0, .25) !default;
-$form-switch-width:               2em !default;
-$form-switch-padding-left:        $form-switch-width + .5em !default;
-$form-switch-bg-image:            url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='3' fill='#{$form-switch-color}'/></svg>") !default;
-$form-switch-border-radius:       $form-switch-width !default;
-$form-switch-focus-color:         $input-focus-border-color !default;
-$form-switch-focus-bg-image:      url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='3' fill='#{$form-switch-focus-color}'/></svg>") !default;
-$form-switch-checked-color:       $component-active-color !default;
-$form-switch-checked-bg-image:    url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='3' fill='#{$form-switch-checked-color}'/></svg>") !default;
+$input-btn-focus-color: rgba($component-active-bg, $input-btn-focus-color-opacity) !default;
+$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-padding-y-lg: .5rem !default;
+$input-btn-padding-x-lg: 1rem !default;
+$input-btn-font-size-lg: $font-size-lg !default;
+
+$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-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-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-color: $link-color !default;
+$btn-link-hover-color: $link-hover-color !default;
+$btn-link-disabled-color: $gray-600 !default;
+
+// Allows for customizing button radius independently from global border radius
+$btn-border-radius: $border-radius !default;
+$btn-border-radius-sm: $border-radius-sm !default;
+$btn-border-radius-lg: $border-radius-lg !default;
+
+$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
+
+$form-text-margin-top: .25rem !default;
+$form-text-font-size: $small-font-size !default;
+$form-text-font-style: null !default;
+$form-text-font-weight: null !default;
+$form-text-color: $text-muted !default;
+
+$form-label-margin-bottom: .5rem !default;
+$form-label-font-size: null !default;
+$form-label-font-style: null !default;
+$form-label-font-weight: null !default;
+$form-label-color: null !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-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-bg: $white !default;
+$input-disabled-bg: $gray-200 !default;
+$input-disabled-border-color: null !default;
+
+$input-color: $body-color !default;
+$input-border-color: $gray-400 !default;
+$input-border-width: $input-btn-border-width !default;
+$input-box-shadow: $box-shadow-inset !default;
+
+$input-border-radius: $border-radius !default;
+$input-border-radius-sm: $border-radius-sm !default;
+$input-border-radius-lg: $border-radius-lg !default;
+
+$input-focus-bg: $input-bg !default;
+$input-focus-border-color: tint-color($component-active-bg, 50%) !default;
+$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, $input-padding-y / 2) !default;
+
+$input-height: add($input-line-height * 1em, add($input-padding-y * 2, $input-height-border, false)) !default;
+$input-height-sm: add($input-line-height * 1em, add($input-padding-y-sm * 2, $input-height-border, false)) !default;
+$input-height-lg: add($input-line-height * 1em, add($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;
+
+
+$form-check-input-width: 1em !default;
+$form-check-min-height: $font-size-base * $line-height-base !default;
+$form-check-padding-left: $form-check-input-width + .5em !default;
+$form-check-margin-bottom: .125rem !default;
+$form-check-label-color: null !default;
+$form-check-label-cursor: null !default;
+$form-check-transition: background-color .15s ease-in-out, background-position .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out !default;
+
+$form-check-input-active-filter: brightness(90%) !default;
+
+$form-check-input-bg: $body-bg !default;
+$form-check-input-border: 1px solid rgba(0, 0, 0, .25) !default;
+$form-check-input-border-radius: .25em !default;
+$form-check-radio-border-radius: 50% !default;
+$form-check-input-focus-border: $input-focus-border-color !default;
+$form-check-input-focus-box-shadow: $input-btn-focus-box-shadow !default;
+
+$form-check-input-checked-color: $component-active-color !default;
+$form-check-input-checked-bg-color: $component-active-bg !default;
+$form-check-input-checked-border-color: $form-check-input-checked-bg-color !default;
+$form-check-input-checked-bg-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'><path fill='none' stroke='#{$form-check-input-checked-color}' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10l3 3l6-6'/></svg>") !default;
+$form-check-radio-checked-bg-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='2' fill='#{$form-check-input-checked-color}'/></svg>") !default;
+
+$form-check-input-indeterminate-color: $component-active-color !default;
+$form-check-input-indeterminate-bg-color: $component-active-bg !default;
+$form-check-input-indeterminate-border-color: $form-check-input-indeterminate-bg-color !default;
+$form-check-input-indeterminate-bg-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'><path fill='none' stroke='#{$form-check-input-indeterminate-color}' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10h8'/></svg>") !default;
+
+$form-check-input-disabled-opacity: .5 !default;
+$form-check-label-disabled-opacity: $form-check-input-disabled-opacity !default;
+$form-check-btn-check-disabled-opacity: $btn-disabled-opacity !default;
+
+$form-switch-color: rgba(0, 0, 0, .25) !default;
+$form-switch-width: 2em !default;
+$form-switch-padding-left: $form-switch-width + .5em !default;
+$form-switch-bg-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='3' fill='#{$form-switch-color}'/></svg>") !default;
+$form-switch-border-radius: $form-switch-width !default;
+
+$form-switch-focus-color: $input-focus-border-color !default;
+$form-switch-focus-bg-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='3' fill='#{$form-switch-focus-color}'/></svg>") !default;
+
+$form-switch-checked-color: $component-active-color !default;
+$form-switch-checked-bg-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'><circle r='3' fill='#{$form-switch-checked-color}'/></svg>") !default;
 $form-switch-checked-bg-position: right center !default;
-$form-check-inline-margin-right:        1rem !default;
-$input-group-addon-color:               $input-color !default;
-$input-group-addon-bg:                  $gray-200 !default;
-$input-group-addon-border-color:        $input-border-color !default;
-$form-select-padding-y:             $input-padding-y !default;
-$form-select-padding-x:             $input-padding-x !default;
-$form-select-font-family:           $input-font-family !default;
-$form-select-font-size:             $input-font-size !default;
-$form-select-height:                $input-height !default;
-$form-select-indicator-padding:     1rem !default; // Extra padding to account for the presence of the background-image based indicator
-$form-select-font-weight:           $input-font-weight !default;
-$form-select-line-height:           $input-line-height !default;
-$form-select-color:                 $input-color !default;
-$form-select-disabled-color:        $gray-600 !default;
-$form-select-bg:                    $input-bg !default;
-$form-select-disabled-bg:           $gray-200 !default;
+
+$form-check-inline-margin-right: 1rem !default;
+
+$input-group-addon-padding-y: $input-padding-y !default;
+$input-group-addon-padding-x: $input-padding-x !default;
+$input-group-addon-font-weight: $input-font-weight !default;
+$input-group-addon-color: $input-color !default;
+$input-group-addon-bg: $gray-200 !default;
+$input-group-addon-border-color: $input-border-color !default;
+
+$form-select-padding-y: $input-padding-y !default;
+$form-select-padding-x: $input-padding-x !default;
+$form-select-font-family: $input-font-family !default;
+$form-select-font-size: $input-font-size !default;
+$form-select-indicator-padding: 1rem !default; // Extra padding to account for the presence of the background-image based indicator
+$form-select-font-weight: $input-font-weight !default;
+$form-select-line-height: $input-line-height !default;
+$form-select-color: $input-color !default;
+$form-select-disabled-color: $gray-600 !default;
+$form-select-bg: $input-bg !default;
+$form-select-disabled-bg: $gray-200 !default;
 $form-select-disabled-border-color: $input-disabled-border-color !default;
-$form-select-bg-position:           right $form-select-padding-x center !default;
-$form-select-bg-size:               16px 12px !default; // In pixels because image dimensions
-$form-select-indicator-color:       $gray-800 !default;
-$form-select-indicator:             url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path fill='none' stroke='#{$form-select-indicator-color}' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/></svg>") !default;
+$form-select-bg-position: right $form-select-padding-x center !default;
+$form-select-bg-size: 16px 12px !default; // In pixels because image dimensions
+$form-select-indicator-color: $gray-800 !default;
+$form-select-indicator: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path fill='none' stroke='#{$form-select-indicator-color}' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/></svg>") !default;
+
 $form-select-feedback-icon-padding-right: add(1em * .75, (2 * $form-select-padding-y * .75) + $form-select-padding-x + $form-select-indicator-padding) !default;
-$form-select-feedback-icon-position:      center right ($form-select-padding-x + $form-select-indicator-padding) !default;
-$form-select-feedback-icon-size:          $input-height-inner-half $input-height-inner-half !default;
-$form-select-border-width:        $input-border-width !default;
-$form-select-border-color:        $input-border-color !default;
-$form-select-border-radius:       $border-radius !default;
-$form-select-box-shadow:          $box-shadow-inset !default;
-$form-select-focus-border-color:  $input-focus-border-color !default;
-$form-select-focus-width:         $input-focus-width !default;
-$form-select-focus-box-shadow:    0 0 0 $form-select-focus-width $input-btn-focus-color !default;
-$form-select-padding-y-sm:        $input-padding-y-sm !default;
-$form-select-padding-x-sm:        $input-padding-x-sm !default;
-$form-select-font-size-sm:        $input-font-size-sm !default;
-$form-select-height-sm:           $input-height-sm !default;
-$form-select-padding-y-lg:        $input-padding-y-lg !default;
-$form-select-padding-x-lg:        $input-padding-x-lg !default;
-$form-select-font-size-lg:        $input-font-size-lg !default;
-$form-select-height-lg:           $input-height-lg !default;
-$form-range-track-width:          100% !default;
-$form-range-track-height:         .5rem !default;
-$form-range-track-cursor:         pointer !default;
-$form-range-track-bg:             $gray-300 !default;
-$form-range-track-border-radius:  1rem !default;
-$form-range-track-box-shadow:     $box-shadow-inset !default;
-$form-range-thumb-width:                   1rem !default;
-$form-range-thumb-height:                  $form-range-thumb-width !default;
-$form-range-thumb-bg:                      $component-active-bg !default;
-$form-range-thumb-border:                  0 !default;
-$form-range-thumb-border-radius:           1rem !default;
-$form-range-thumb-box-shadow:              0 .1rem .25rem rgba($black, .1) !default;
-$form-range-thumb-focus-box-shadow:        0 0 0 1px $body-bg, $input-focus-box-shadow !default;
-$form-range-thumb-focus-box-shadow-width:  $input-focus-width !default; // For focus box shadow issue in Edge
-$form-range-thumb-active-bg:               lighten($component-active-bg, 35%) !default;
-$form-range-thumb-disabled-bg:             $gray-500 !default;
-$form-range-thumb-transition:              background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out !default;
-$form-file-height:                $input-height !default;
-$form-file-focus-border-color:    $input-focus-border-color !default;
-$form-file-focus-box-shadow:      $input-focus-box-shadow !default;
-$form-file-disabled-bg:           $input-disabled-bg !default;
-$form-file-disabled-border-color: $input-disabled-border-color !default;
-$form-file-padding-y:             $input-padding-y !default;
-$form-file-padding-x:             $input-padding-x !default;
-$form-file-line-height:           $input-line-height !default;
-$form-file-font-family:           $input-font-family !default;
-$form-file-font-weight:           $input-font-weight !default;
-$form-file-color:                 $input-color !default;
-$form-file-bg:                    $input-bg !default;
-$form-file-border-width:          $input-border-width !default;
-$form-file-border-color:          $input-border-color !default;
-$form-file-border-radius:         $input-border-radius !default;
-$form-file-box-shadow:            $input-box-shadow !default;
-$form-file-button-color:          $form-file-color !default;
-$form-file-button-bg:             $input-group-addon-bg !default;
-$form-file-padding-y-sm:          $input-padding-y-sm !default;
-$form-file-padding-x-sm:          $input-padding-x-sm !default;
-$form-file-font-size-sm:          $input-font-size-sm !default;
-$form-file-height-sm:             $input-height-sm !default;
-$form-file-padding-y-lg:          $input-padding-y-lg !default;
-$form-file-padding-x-lg:          $input-padding-x-lg !default;
-$form-file-font-size-lg:          $input-font-size-lg !default;
-$form-file-height-lg:             $input-height-lg !default;
-$form-feedback-margin-top:          $form-text-margin-top !default;
-$form-feedback-font-size:           $form-text-font-size !default;
-$form-feedback-font-style:          $form-text-font-style !default;
-$form-feedback-valid-color:         $success !default;
-$form-feedback-invalid-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' 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;
+$form-select-feedback-icon-position: center right ($form-select-padding-x + $form-select-indicator-padding) !default;
+$form-select-feedback-icon-size: $input-height-inner-half $input-height-inner-half !default;
+
+$form-select-border-width: $input-border-width !default;
+$form-select-border-color: $input-border-color !default;
+$form-select-border-radius: $border-radius !default;
+$form-select-box-shadow: $box-shadow-inset !default;
+
+$form-select-focus-border-color: $input-focus-border-color !default;
+$form-select-focus-width: $input-focus-width !default;
+$form-select-focus-box-shadow: 0 0 0 $form-select-focus-width $input-btn-focus-color !default;
+
+$form-select-padding-y-sm: $input-padding-y-sm !default;
+$form-select-padding-x-sm: $input-padding-x-sm !default;
+$form-select-font-size-sm: $input-font-size-sm !default;
+
+$form-select-padding-y-lg: $input-padding-y-lg !default;
+$form-select-padding-x-lg: $input-padding-x-lg !default;
+$form-select-font-size-lg: $input-font-size-lg !default;
+
+$form-range-track-width: 100% !default;
+$form-range-track-height: .5rem !default;
+$form-range-track-cursor: pointer !default;
+$form-range-track-bg: $gray-300 !default;
+$form-range-track-border-radius: 1rem !default;
+$form-range-track-box-shadow: $box-shadow-inset !default;
+
+$form-range-thumb-width: 1rem !default;
+$form-range-thumb-height: $form-range-thumb-width !default;
+$form-range-thumb-bg: $component-active-bg !default;
+$form-range-thumb-border: 0 !default;
+$form-range-thumb-border-radius: 1rem !default;
+$form-range-thumb-box-shadow: 0 .1rem .25rem rgba($black, .1) !default;
+$form-range-thumb-focus-box-shadow: 0 0 0 1px $body-bg, $input-focus-box-shadow !default;
+$form-range-thumb-focus-box-shadow-width: $input-focus-width !default; // For focus box shadow issue in Edge
+$form-range-thumb-active-bg: tint-color($component-active-bg, 70%) !default;
+$form-range-thumb-disabled-bg: $gray-500 !default;
+$form-range-thumb-transition: background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out !default;
+
+$form-file-button-color: $input-color !default;
+$form-file-button-bg: $input-group-addon-bg !default;
+$form-file-button-hover-bg: shade-color($form-file-button-bg, 5%) !default;
+
+$form-floating-height: add(3.5rem, $input-height-border) !default;
+$form-floating-padding-x: $input-padding-x !default;
+$form-floating-padding-y: 1rem !default;
+$form-floating-input-padding-t: 1.625rem !default;
+$form-floating-input-padding-b: .625rem !default;
+$form-floating-label-opacity: .65 !default;
+$form-floating-label-transform: scale(.85) translateY(-.5rem) translateX(.15rem) !default;
+$form-floating-transition: opacity .1s ease-in-out, transform .1s ease-in-out !default;
+
+// Form validation
+
+$form-feedback-margin-top: $form-text-margin-top !default;
+$form-feedback-font-size: $form-text-font-size !default;
+$form-feedback-font-style: $form-text-font-style !default;
+$form-feedback-valid-color: $success !default;
+$form-feedback-invalid-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' 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' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='#{$form-feedback-icon-invalid-color}'><circle cx='6' cy='6' r='4.5'/><path stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/><circle cx='6' cy='8.2' r='.6' fill='#{$form-feedback-icon-invalid-color}' stroke='none'/></svg>") !default;
+
+// scss-docs-start form-validation-states
 $form-validation-states: (
         "valid": (
                 "color": $form-feedback-valid-color,
@@ -597,298 +846,507 @@
                 "icon": $form-feedback-icon-invalid
         )
 ) !default;
-$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;
-$nav-link-padding-y:                .5rem !default;
-$nav-link-padding-x:                1rem !default;
-$nav-link-transition:               color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out !default;
-$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:           $body-bg !default;
+// scss-docs-end form-validation-states
+
+// Z-index master list
+//
+// Warning: Avoid customizing these values. They're used for a bird's eye view
+// of components dependent on the z-axis and are designed to all work together.
+
+// scss-docs-start zindex-stack
+$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;
+// scss-docs-end zindex-stack
+
+
+// Navs
+
+$nav-link-padding-y: .5rem !default;
+$nav-link-padding-x: 1rem !default;
+$nav-link-font-size: null !default;
+$nav-link-font-weight: null !default;
+$nav-link-color: null !default;
+$nav-link-hover-color: null !default;
+$nav-link-transition: color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out !default;
+$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:          $component-active-bg !default;
-$navbar-padding-y:                  $spacer / 2 !default;
-$navbar-padding-x:                  null !default;
-$navbar-nav-link-padding-x:         .5rem !default;
-$navbar-brand-font-size:            $font-size-lg !default;
-$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 - $navbar-brand-height) / 2 !default;
-$navbar-brand-margin-right:         1rem !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-toggler-focus-width:        $btn-focus-width !default;
-$navbar-toggler-transition:         box-shadow .15s ease-in-out !default;
-$navbar-dark-color:                 rgba($white, .55) !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' 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($black, .55) !default;
-$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' viewBox='0 0 30 30'><path stroke='#{$navbar-light-color}' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/></svg>") !default;
+
+$nav-pills-border-radius: $border-radius !default;
+$nav-pills-link-active-color: $component-active-color !default;
+$nav-pills-link-active-bg: $component-active-bg !default;
+
+
+// Navbar
+
+$navbar-padding-y: $spacer / 2 !default;
+$navbar-padding-x: null !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 - $navbar-brand-height) / 2 !default;
+$navbar-brand-margin-right: 1rem !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-toggler-focus-width: $btn-focus-width !default;
+$navbar-toggler-transition: box-shadow .15s ease-in-out !default;
+
+$navbar-dark-color: rgba($white, .55) !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' 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($black, .55) !default;
+$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' 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:           $navbar-dark-active-color !default;
-$dropdown-min-width:                10rem !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:         $spacer / 2 !default;
-$dropdown-box-shadow:               $box-shadow !default;
-$dropdown-link-color:               $gray-900 !default;
-$dropdown-link-hover-color:         darken($gray-900, 5%) !default;
-$dropdown-link-hover-bg:            $gray-100 !default;
-$dropdown-link-active-color:        $component-active-color !default;
-$dropdown-link-active-bg:           $component-active-bg !default;
-$dropdown-link-disabled-color:      $gray-600 !default;
-$dropdown-item-padding-y:           $spacer / 4 !default;
-$dropdown-item-padding-x:           $spacer !default;
-$dropdown-header-color:             $gray-600 !default;
-$dropdown-header-padding:           $dropdown-padding-y $dropdown-item-padding-x !default;
-$pagination-padding-y:              .375rem !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-color:                  $link-color !default;
-$pagination-bg:                     $white !default;
-$pagination-border-width:           $border-width !default;
-$pagination-border-radius:          $border-radius !default;
-$pagination-margin-left:            -$pagination-border-width !default;
-$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:  $gray-300 !default;
-$card-spacer-y:                     $spacer !default;
-$card-spacer-x:                     $spacer !default;
-$card-title-spacer-y:               $spacer / 2 !default;
-$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-padding-y:                $card-spacer-y / 2 !default;
-$card-cap-padding-x:                $card-spacer-x !default;
-$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:          $spacer !default;
-$card-group-margin:                 $grid-gutter-width / 2 !default;
-$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:                 $spacer / 4 !default;
-$tooltip-padding-x:                 $spacer / 2 !default;
-$tooltip-margin:                    0 !default;
-$tooltip-arrow-width:               .8rem !default;
-$tooltip-arrow-height:              .4rem !default;
-$tooltip-arrow-color:               $tooltip-bg !default;
-$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:   null !default;
-$form-feedback-tooltip-opacity:       $tooltip-opacity !default;
+
+$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: $dropdown-border-color !default;
+$dropdown-divider-margin-y: $spacer / 2 !default;
+$dropdown-box-shadow: $box-shadow !default;
+
+$dropdown-link-color: $gray-900 !default;
+$dropdown-link-hover-color: shade-color($gray-900, 10%) !default;
+$dropdown-link-hover-bg: $gray-100 !default;
+
+$dropdown-link-active-color: $component-active-color !default;
+$dropdown-link-active-bg: $component-active-bg !default;
+
+$dropdown-link-disabled-color: $gray-600 !default;
+
+$dropdown-item-padding-y: $spacer / 4 !default;
+$dropdown-item-padding-x: $spacer !default;
+
+$dropdown-header-color: $gray-600 !default;
+$dropdown-header-padding: $dropdown-padding-y $dropdown-item-padding-x !default;
+
+$dropdown-dark-color: $gray-300 !default;
+$dropdown-dark-bg: $gray-800 !default;
+$dropdown-dark-border-color: $dropdown-border-color !default;
+$dropdown-dark-divider-bg: $dropdown-divider-bg !default;
+$dropdown-dark-box-shadow: null !default;
+$dropdown-dark-link-color: $dropdown-dark-color !default;
+$dropdown-dark-link-hover-color: $white !default;
+$dropdown-dark-link-hover-bg: rgba($white, .15) !default;
+$dropdown-dark-link-active-color: $dropdown-link-active-color !default;
+$dropdown-dark-link-active-bg: $dropdown-link-active-bg !default;
+$dropdown-dark-link-disabled-color: $gray-500 !default;
+$dropdown-dark-header-color: $gray-500 !default;
+
+
+// Pagination
+
+$pagination-padding-y: .375rem !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-color: $link-color !default;
+$pagination-bg: $white !default;
+$pagination-border-width: $border-width !default;
+$pagination-border-radius: $border-radius !default;
+$pagination-margin-left: -$pagination-border-width !default;
+$pagination-border-color: $gray-300 !default;
+
+$pagination-focus-color: $link-hover-color !default;
+$pagination-focus-bg: $gray-200 !default;
+$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-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;
+
+// Cards
+
+$card-spacer-y: $spacer !default;
+$card-spacer-x: $spacer !default;
+$card-title-spacer-y: $spacer / 2 !default;
+$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-padding-y: $card-spacer-y / 2 !default;
+$card-cap-padding-x: $card-spacer-x !default;
+$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: $spacer !default;
+
+$card-group-margin: $grid-gutter-width / 2 !default;
+
+// Accordion
+$accordion-padding-y: 1rem !default;
+$accordion-padding-x: 1.25rem !default;
+$accordion-color: $body-color !default;
+$accordion-bg: transparent !default;
+$accordion-border-width: $border-width !default;
+$accordion-border-color: rgba($black, .125) !default;
+$accordion-border-radius: $border-radius !default;
+
+$accordion-body-padding-y: $accordion-padding-y !default;
+$accordion-body-padding-x: $accordion-padding-x !default;
+
+$accordion-button-padding-y: $accordion-padding-y !default;
+$accordion-button-padding-x: $accordion-padding-x !default;
+$accordion-button-color: $accordion-color !default;
+$accordion-button-bg: $accordion-bg !default;
+$accordion-transition: $btn-transition, border-radius .15s ease !default;
+$accordion-button-active-bg: tint-color($component-active-bg, 90%) !default;
+$accordion-button-active-color: shade-color($primary, 10%) !default;
+
+$accordion-button-focus-border-color: $input-focus-border-color !default;
+$accordion-button-focus-box-shadow: $btn-focus-box-shadow !default;
+
+$accordion-icon-width: 1.25rem !default;
+$accordion-icon-color: $accordion-color !default;
+$accordion-icon-active-color: $accordion-button-active-color !default;
+$accordion-icon-transition: transform .2s ease-in-out !default;
+$accordion-icon-transform: rotate(180deg) !default;
+
+$accordion-button-icon: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='#{$accordion-icon-color}'><path fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/></svg>") !default;
+$accordion-button-active-icon: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='#{$accordion-icon-active-color}'><path fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/></svg>") !default;
+
+// Tooltips
+
+$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: $spacer / 4 !default;
+$tooltip-padding-x: $spacer / 2 !default;
+$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: null !default;
+$form-feedback-tooltip-opacity: $tooltip-opacity !default;
 $form-feedback-tooltip-border-radius: $tooltip-border-radius !default;
-$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:                $box-shadow !default;
-$popover-header-bg:                 darken($popover-bg, 3%) !default;
-$popover-header-color:              $headings-color !default;
-$popover-header-padding-y:          .5rem !default;
-$popover-header-padding-x:          $spacer !default;
-$popover-body-color:                $body-color !default;
-$popover-body-padding-y:            $spacer !default;
-$popover-body-padding-x:            $spacer !default;
-$popover-arrow-width:               1rem !default;
-$popover-arrow-height:              .5rem !default;
-$popover-arrow-color:               $popover-bg !default;
-$popover-arrow-outer-color:         fade-in($popover-border-color, .05) !default;
-$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:               $border-radius !default;
-$toast-box-shadow:                  $box-shadow !default;
-$toast-header-color:                $gray-600 !default;
-$toast-header-background-color:     rgba($white, .85) !default;
-$toast-header-border-color:         rgba(0, 0, 0, .05) !default;
-$badge-font-size:                   .75em !default;
-$badge-font-weight:                 $font-weight-bold !default;
-$badge-color:                       $white !default;
-$badge-padding-y:                   .25em !default;
-$badge-padding-x:                   .5em !default;
-$badge-border-radius:               $border-radius !default;
-$modal-inner-padding:               $spacer !default;
-$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:       $border-radius-lg !default;
+
+
+// Popovers
+
+$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: $box-shadow !default;
+
+$popover-header-bg: shade-color($popover-bg, 6%) !default;
+$popover-header-color: $headings-color !default;
+$popover-header-padding-y: .5rem !default;
+$popover-header-padding-x: $spacer !default;
+
+$popover-body-color: $body-color !default;
+$popover-body-padding-y: $spacer !default;
+$popover-body-padding-x: $spacer !default;
+
+$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: .5rem !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: $border-radius !default;
+$toast-box-shadow: $box-shadow !default;
+
+$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
+
+$badge-font-size: .75em !default;
+$badge-font-weight: $font-weight-bold !default;
+$badge-color: $white !default;
+$badge-padding-y: .35em !default;
+$badge-padding-x: .65em !default;
+$badge-border-radius: $border-radius !default;
+
+
+// Modals
+
+// Padding applied to the modal body
+$modal-inner-padding: $spacer !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:       $box-shadow-sm !default;
-$modal-content-box-shadow-sm-up:    $box-shadow !default;
-$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:            $modal-inner-padding !default;
-$modal-header-padding-x:            $modal-inner-padding !default;
-$modal-header-padding:              $modal-header-padding-y $modal-header-padding-x !default; // Keep this for backwards compatibility
-$modal-sm:                          300px !default;
-$modal-md:                          500px !default;
-$modal-lg:                          800px !default;
-$modal-xl:                          1140px !default;
-$modal-fade-transform:              translate(0, -50px) !default;
-$modal-show-transform:              none !default;
-$modal-transition:                  transform .3s ease-out !default;
-$modal-scale-transform:             scale(1.02) !default;
-$alert-padding-y:                   $spacer !default;
-$alert-padding-x:                   $spacer !default;
-$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;
-$progress-height:                   1rem !default;
-$progress-font-size:                $font-size-base * .75 !default;
-$progress-bg:                       $gray-200 !default;
-$progress-border-radius:            $border-radius !default;
-$progress-box-shadow:               $box-shadow-inset !default;
-$progress-bar-color:                $white !default;
-$progress-bar-bg:                   $primary !default;
-$progress-bar-animation-timing:     1s linear infinite !default;
-$progress-bar-transition:           width .6s ease !default;
-$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:         $spacer / 2 !default;
-$list-group-item-padding-x:         $spacer !default;
-$list-group-item-bg-level:          -9 !default;
-$list-group-item-color-level:       6 !default;
-$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:       $gray-200 !default;
-$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:              $box-shadow-sm !default;
-$figure-caption-font-size:          $small-font-size !default;
-$figure-caption-color:              $gray-600 !default;
-$breadcrumb-font-size:              null !default;
-$breadcrumb-padding-y:              $spacer / 2 !default;
-$breadcrumb-padding-x:              $spacer !default;
-$breadcrumb-item-padding-x:         .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-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;
-$carousel-indicator-height:          3px !default;
+$modal-content-box-shadow-xs: $box-shadow-sm !default;
+$modal-content-box-shadow-sm-up: $box-shadow !default;
+
+$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: $modal-inner-padding !default;
+$modal-header-padding-x: $modal-inner-padding !default;
+$modal-header-padding: $modal-header-padding-y $modal-header-padding-x !default; // Keep this for backwards compatibility
+
+$modal-sm: 300px !default;
+$modal-md: 500px !default;
+$modal-lg: 800px !default;
+$modal-xl: 1140px !default;
+
+$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: $spacer !default;
+$alert-padding-x: $spacer !default;
+$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-scale: -80% !default;
+$alert-border-scale: -70% !default;
+$alert-color-scale: 40% !default;
+
+$alert-dismissible-padding-r: $alert-padding-x * 3 !default; // 3x covers width of x plus default padding on either side
+
+
+// Progress bars
+
+$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: $box-shadow-inset !default;
+$progress-bar-color: $white !default;
+$progress-bar-bg: $primary !default;
+$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: $spacer / 2 !default;
+$list-group-item-padding-x: $spacer !default;
+$list-group-item-bg-scale: -80% !default;
+$list-group-item-color-scale: 40% !default;
+
+$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: $box-shadow-sm !default;
+
+
+// Figures
+
+$figure-caption-font-size: $small-font-size !default;
+$figure-caption-color: $gray-600 !default;
+
+
+// Breadcrumbs
+
+$breadcrumb-font-size: null !default;
+$breadcrumb-padding-y: $spacer / 2 !default;
+$breadcrumb-padding-x: $spacer !default;
+$breadcrumb-item-padding-x: .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;
-$carousel-indicator-opacity:         .5 !default;
-$carousel-indicator-active-bg:       $white !default;
-$carousel-indicator-active-opacity:  1 !default;
-$carousel-indicator-transition:      opacity .6s ease !default;
-$carousel-caption-width:             70% !default;
-$carousel-caption-color:             $white !default;
-$carousel-caption-padding-y:         1.25rem !default;
-$carousel-caption-spacer:            1.25rem !default;
-$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}' 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}' 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 $carousel-transition-duration ease-in-out !default; // Define transform transition first if using multiple transitions (e.g., `transform 2s ease, opacity .5s ease-out`)
-$spinner-width:           2rem !default;
-$spinner-height:          $spinner-width !default;
-$spinner-border-width:    .25em !default;
+$carousel-indicator-spacer: 3px !default;
+$carousel-indicator-opacity: .5 !default;
+$carousel-indicator-active-bg: $white !default;
+$carousel-indicator-active-opacity: 1 !default;
+$carousel-indicator-transition: opacity .6s ease !default;
+
+$carousel-caption-width: 70% !default;
+$carousel-caption-color: $white !default;
+$carousel-caption-padding-y: 1.25rem !default;
+$carousel-caption-spacer: 1.25rem !default;
+
+$carousel-control-icon-width: 2rem !default;
+
+$carousel-control-prev-icon-bg: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='#{$carousel-control-color}'><path d='M11.354 1.646a.5.5 0 0 1 0 .708L5.707 8l5.647 5.646a.5.5 0 0 1-.708.708l-6-6a.5.5 0 0 1 0-.708l6-6a.5.5 0 0 1 .708 0z'/></svg>") !default;
+$carousel-control-next-icon-bg: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='#{$carousel-control-color}'><path d='M4.646 1.646a.5.5 0 0 1 .708 0l6 6a.5.5 0 0 1 0 .708l-6 6a.5.5 0 0 1-.708-.708L10.293 8 4.646 2.354a.5.5 0 0 1 0-.708z'/></svg>") !default;
+
+$carousel-transition-duration: .6s !default;
+$carousel-transition: transform $carousel-transition-duration ease-in-out !default; // Define transform transition first if using multiple transitions (e.g., `transform 2s ease, opacity .5s ease-out`)
+
+$carousel-dark-indicator-active-bg: $black !default;
+$carousel-dark-caption-color: $black !default;
+$carousel-dark-control-icon-filter: invert(1) grayscale(100) !default;
+
+
+// Spinners
+
+$spinner-width: 2rem !default;
+$spinner-height: $spinner-width !default;
+$spinner-border-width: .25em !default;
 $spinner-animation-speed: .75s !default;
-$spinner-width-sm:        1rem !default;
-$spinner-height-sm:       $spinner-width-sm !default;
+
+$spinner-width-sm: 1rem !default;
+$spinner-height-sm: $spinner-width-sm !default;
 $spinner-border-width-sm: .2em !default;
-$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-font-size:                    $small-font-size !default;
-$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:                         null !default;
+
+
+// Close
+
+$btn-close-width: 1em !default;
+$btn-close-height: $btn-close-width !default;
+$btn-close-padding-x: .25em !default;
+$btn-close-padding-y: $btn-close-padding-x !default;
+$btn-close-color: $black !default;
+$btn-close-bg: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='#{$btn-close-color}'><path d='M.293.293a1 1 0 011.414 0L8 6.586 14.293.293a1 1 0 111.414 1.414L9.414 8l6.293 6.293a1 1 0 01-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 01-1.414-1.414L6.586 8 .293 1.707a1 1 0 010-1.414z'/></svg>") !default;
+$btn-close-focus-shadow: $input-btn-focus-box-shadow !default;
+$btn-close-opacity: .5 !default;
+$btn-close-hover-opacity: .75 !default;
+$btn-close-focus-opacity: 1 !default;
+$btn-close-disabled-opacity: .25 !default;
+$btn-close-white-filter: invert(1) grayscale(100%) brightness(200%) !default;
+
+// Code
+
+$code-font-size: $small-font-size !default;
+$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: null !default;