_variables.scss in bootswatch-4.0.0.alpha6

- old
+ new

@@ -1,9 +1,11 @@
 // Sandstone 4.0.0
 // Bootswatch
 
 
+
+
 // Table of Contents
 //
 // Colors
 // Options
 // Spacing
@@ -12,10 +14,34 @@
 // Grid breakpoints
 // Grid containers
 // Grid columns
 // Fonts
 // Components
+// Tables
+// Buttons
+// Forms
+// Dropdowns
+// Z-index master list
+// Navbar
+// Navs
+// Pagination
+// Jumbotron
+// Form states and alerts
+// Cards
+// Tooltips
+// Popovers
+// Badges
+// Modals
+// Alerts
+// Progress bars
+// List group
+// Image thumbnails
+// Figures
+// Breadcrumbs
+// Carousel
+// Close
+// Code
 
 @mixin _assert-ascending($map, $map-name) {
   $prev-key: null;
   $prev-num: null;
   @each $key, $num in $map {
@@ -29,25 +55,64 @@
     $prev-key: $key;
     $prev-num: $num;
   }
 }
 
+// Replace `$search` with `$replace` in `$string`
+// @author Hugo Giraudel
+// @param {String} $string - Initial string
+// @param {String} $search - Substring to replace
+// @param {String} $replace ('') - New value
+// @return {String} - Updated string
+@function str-replace($string, $search, $replace: "") {
+  $index: str-index($string, $search);
+
+  @if $index {
+    @return str-slice($string, 1, $index - 1) + $replace + str-replace(str-slice($string, $index + str-length($search)), $search, $replace);
+  }
+
+  @return $string;
+}
+
+@mixin _assert-starts-at-zero($map) {
+  $values: map-values($map);
+  $first-value: nth($values, 1);
+  @if $first-value != 0 {
+    @warn "First breakpoint in `$grid-breakpoints` must start at 0, but starts at #{$first-value}.";
+  }
+}
+
+
 // General variable structure
 //
 // Variable format should follow the `$component-modifier-state-property` order.
 
 
 // Colors
 //
 // Grayscale and brand colors for use across Bootstrap.
 
+// Start with assigning color names to specific hex values.
+$white:  #fff !default;
+$black:  #000 !default;
+$red:    #d9534f !default;
+$orange: #f0ad4e !default;
+$yellow: #ffd500 !default;
+$green:  #5cb85c !default;
+$blue:   #0275d8 !default;
+$teal:   #5bc0de !default;
+$pink:   #ff5b77 !default;
+$purple: #613d7c !default;
+
+// Create grayscale
 $gray-dark:                 #3E3F3A;
 $gray:                      #8E8C84;
 $gray-light:                #98978B;
 $gray-lighter:              #DFD7CA;
 $gray-lightest:             #F8F5F0;
 
+// Reassign color vars to semantic color scheme
 $brand-primary:             #325D88;
 $brand-success:             #93C54B;
 $brand-info:                #29ABE0;
 $brand-warning:             #F47C3C;
 $brand-danger:              #d9534f;
@@ -56,15 +121,14 @@
 
 // Options
 //
 // Quickly modify global styling by enabling or disabling optional features.
 
-$enable-flex:               false !default;
 $enable-rounded:            true !default;
 $enable-shadows:            false !default;
 $enable-gradients:          false !default;
-$enable-transitions:        false !default;
+$enable-transitions:        true !default;
 $enable-hover-media-query:  false !default;
 $enable-grid-classes:       true !default;
 $enable-print-styles:       true !default;
 
 
@@ -81,31 +145,48 @@
   0: (
     x: 0,
     y: 0
   ),
   1: (
+    x: ($spacer-x * .25),
+    y: ($spacer-y * .25)
+  ),
+  2: (
+    x: ($spacer-x * .5),
+    y: ($spacer-y * .5)
+  ),
+  3: (
     x: $spacer-x,
     y: $spacer-y
   ),
-  2: (
+  4: (
     x: ($spacer-x * 1.5),
     y: ($spacer-y * 1.5)
   ),
-  3: (
+  5: (
     x: ($spacer-x * 3),
     y: ($spacer-y * 3)
   )
 ) !default;
 $border-width: 1px !default;
 
+// This variable affects the `.h-*` and `.w-*` classes.
+$sizes: (
+  25: 25%,
+  50: 50%,
+  75: 75%,
+  100: 100%
+) !default;
 
 // Body
 //
 // Settings for the `<body>` element.
 
-$body-bg:    #fff !default;
-$body-color: $gray-dark !default;
+$body-bg:       #fff !default;
+$body-color:    $gray-dark !default;
+$inverse-bg:    $gray-dark !default;
+$inverse-color: $gray-lighter !default;
 
 
 // Links
 //
 // Style anchor elements.
@@ -127,10 +208,11 @@
   md: 768px,
   lg: 992px,
   xl: 1200px
 ) !default;
 @include _assert-ascending($grid-breakpoints, "$grid-breakpoints");
+@include _assert-starts-at-zero($grid-breakpoints);
 
 
 // Grid containers
 //
 // Define the maximum width of `.container` for different screen sizes.
@@ -156,52 +238,54 @@
   md: $grid-gutter-width-base,
   lg: $grid-gutter-width-base,
   xl: $grid-gutter-width-base
 ) !default;
 
-// Typography
+// Fonts
 //
 // Font, line-height, and color for body text, headings, and more.
 
 $font-family-sans-serif: "Roboto", "Helvetica Neue", Helvetica, Arial, sans-serif;
 $font-family-serif:      Georgia, "Times New Roman", Times, serif !default;
 $font-family-monospace:  Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace !default;
 $font-family-base:       $font-family-sans-serif !default;
 
-// Pixel value used to responsively scale all typography. Applied to the `<html>` element.
-$font-size-root: 14px !default;
-
-$font-size-base: 1rem !default;
+$font-size-base: 0.875rem;
 $font-size-lg:   1.25rem !default;
 $font-size-sm:   .875rem !default;
 $font-size-xs:   .75rem !default;
 
+$font-weight-normal: normal !default;
+$font-weight-bold: bold !default;
+
+$font-weight-base: $font-weight-normal !default;
 $line-height-base: 1.5 !default;
 
 $font-size-h1: 2.5rem !default;
 $font-size-h2: 2rem !default;
 $font-size-h3: 1.75rem !default;
 $font-size-h4: 1.5rem !default;
 $font-size-h5: 1.25rem !default;
 $font-size-h6: 1rem !default;
 
-$display1-size: 6rem !default;
-$display2-size: 5.5rem !default;
-$display3-size: 4.5rem !default;
-$display4-size: 3.5rem !default;
-
-$display1-weight: 300 !default;
-$display2-weight: 300 !default;
-$display3-weight: 300 !default;
-$display4-weight: 300 !default;
-
 $headings-margin-bottom: ($spacer / 2) !default;
 $headings-font-family:   inherit !default;
 $headings-font-weight:   400;
 $headings-line-height:   1.1 !default;
 $headings-color:         inherit !default;
 
+$display1-size: 6rem !default;
+$display2-size: 5.5rem !default;
+$display3-size: 4.5rem !default;
+$display4-size: 3.5rem !default;
+
+$display1-weight:     300 !default;
+$display2-weight:     300 !default;
+$display3-weight:     300 !default;
+$display4-weight:     300 !default;
+$display-line-height: $headings-line-height !default;
+
 $lead-font-size:   1.25rem !default;
 $lead-font-weight: 300 !default;
 
 $small-font-size: 80% !default;
 
@@ -212,19 +296,19 @@
 $blockquote-small-color:  $gray-light !default;
 $blockquote-font-size:    ($font-size-base * 1.25) !default;
 $blockquote-border-color: $gray-lighter !default;
 $blockquote-border-width: .25rem !default;
 
-$hr-border-color: rgba(0,0,0,.1) !default;
+$hr-border-color: rgba($black,.1) !default;
 $hr-border-width: $border-width !default;
 
 $mark-padding: .2em !default;
 
-$dt-font-weight: bold !default;
+$dt-font-weight: $font-weight-bold !default;
 
-$kbd-box-shadow:         inset 0 -.1rem 0 rgba(0,0,0,.25) !default;
-$nested-kbd-font-weight: bold !default;
+$kbd-box-shadow:         inset 0 -.1rem 0 rgba($black,.25) !default;
+$nested-kbd-font-weight: $font-weight-bold !default;
 
 $list-inline-padding: 5px !default;
 
 
 // Components
@@ -236,29 +320,39 @@
 
 $border-radius:          .25rem !default;
 $border-radius-lg:       .3rem !default;
 $border-radius-sm:       .2rem !default;
 
-$component-active-color: #fff !default;
+$component-active-color: $white !default;
 $component-active-bg:    $brand-primary !default;
 
 $caret-width:            .3em !default;
-$caret-width-lg:         $caret-width !default;
 
+$transition-base:        all .2s ease-in-out !default;
+$transition-fade:        opacity .15s linear !default;
+$transition-collapse:    height .35s ease !default;
 
+
 // Tables
 //
 // Customizes the `.table` component with basic values, each used across all table variations.
 
 $table-cell-padding:            .75rem !default;
 $table-sm-cell-padding:         .3rem !default;
 
 $table-bg:                      transparent !default;
-$table-bg-accent:               rgba(0,0,0,.05) !default;
-$table-bg-hover:                rgba(0,0,0,.075) !default;
+
+$table-inverse-bg:              $gray-dark !default;
+$table-inverse-color:           $body-bg !default;
+
+$table-bg-accent:               rgba($black,.05) !default;
+$table-bg-hover:                rgba($black,.075) !default;
 $table-bg-active:               $table-bg-hover !default;
 
+$table-head-bg:                 $gray-lighter !default;
+$table-head-color:              $gray !default;
+
 $table-border-width:            $border-width !default;
 $table-border-color:            $gray-lighter !default;
 
 
 // Buttons
@@ -266,35 +360,36 @@
 // For each of Bootstrap's buttons, define text, background and border color.
 
 $btn-padding-x:                  1rem !default;
 $btn-padding-y:                  .5rem !default;
 $btn-line-height:                1.25 !default;
-$btn-font-weight:                normal !default;
-$btn-box-shadow:                 inset 0 1px 0 rgba(255,255,255,.15), 0 1px 1px rgba(0,0,0,.075) !default;
-$btn-active-box-shadow:          inset 0 3px 5px rgba(0,0,0,.125) !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;
+$btn-focus-box-shadow:           0 0 0 2px rgba($brand-primary, .25) !default;
+$btn-active-box-shadow:          inset 0 3px 5px rgba($black,.125) !default;
 
-$btn-primary-color:              #fff !default;
+$btn-primary-color:              $white !default;
 $btn-primary-bg:                 $brand-primary !default;
 $btn-primary-border:             $btn-primary-bg !default;
 
 $btn-secondary-color:            #fff;
 $btn-secondary-bg:               $gray-dark;
 $btn-secondary-border:           $btn-secondary-bg;
 
-$btn-info-color:                 #fff !default;
+$btn-info-color:                 $white !default;
 $btn-info-bg:                    $brand-info !default;
 $btn-info-border:                $btn-info-bg !default;
 
-$btn-success-color:              #fff !default;
+$btn-success-color:              $white !default;
 $btn-success-bg:                 $brand-success !default;
 $btn-success-border:             $btn-success-bg !default;
 
-$btn-warning-color:              #fff !default;
+$btn-warning-color:              $white !default;
 $btn-warning-bg:                 $brand-warning !default;
 $btn-warning-border:             $btn-warning-bg !default;
 
-$btn-danger-color:               #fff !default;
+$btn-danger-color:               $white !default;
 $btn-danger-bg:                  $brand-danger !default;
 $btn-danger-border:              $btn-danger-bg !default;
 
 $btn-link-disabled-color:        $gray-light !default;
 
@@ -310,46 +405,60 @@
 // Allows for customizing button radius independently from global border radius
 $btn-border-radius:              $border-radius !default;
 $btn-border-radius-lg:           $border-radius-lg !default;
 $btn-border-radius-sm:           $border-radius-sm !default;
 
+$btn-transition:                 all .2s ease-in-out !default;
 
+
 // Forms
 
 $input-padding-x:                .75rem !default;
 $input-padding-y:                .5rem !default;
 $input-line-height:              1.25 !default;
 
-$input-bg:                       #fff !default;
+$input-bg:                       $white !default;
 $input-bg-disabled:              $gray-lightest;
 
 $input-color:                    $gray !default;
-$input-border-color:             rgba(0,0,0,.15) !default;
+$input-border-color:             rgba($black,.15) !default;
 $input-btn-border-width:         $border-width !default; // For form controls and buttons
-$input-box-shadow:               inset 0 1px 1px rgba(0,0,0,.075) !default;
+$input-box-shadow:               inset 0 1px 1px rgba($black,.075) !default;
 
 $input-border-radius:            $border-radius !default;
 $input-border-radius-lg:         $border-radius-lg !default;
 $input-border-radius-sm:         $border-radius-sm !default;
 
 $input-bg-focus:                 $input-bg !default;
-$input-border-focus:             #66afe9 !default;
-$input-box-shadow-focus:         $input-box-shadow, 0 0 8px rgba(102,175,233,.6) !default;
+$input-border-focus:             lighten($brand-primary, 25%) !default;
+$input-box-shadow-focus:         $input-box-shadow, rgba($input-border-focus, .6) !default;
 $input-color-focus:              $input-color !default;
 
-$input-color-placeholder:        #999 !default;
+$input-color-placeholder:        $gray-light !default;
 
 $input-padding-x-sm:             .5rem !default;
 $input-padding-y-sm:             .25rem !default;
 
 $input-padding-x-lg:             1.5rem !default;
 $input-padding-y-lg:             .75rem !default;
 
-$input-height:                   (($font-size-base * $line-height-base) + ($input-padding-y * 2)) !default;
+$input-height:                   (($font-size-base * $input-line-height) + ($input-padding-y * 2)) !default;
 $input-height-lg:                (($font-size-lg * $line-height-lg) + ($input-padding-y-lg * 2)) !default;
 $input-height-sm:                (($font-size-sm * $line-height-sm) + ($input-padding-y-sm * 2)) !default;
 
+$input-transition:               border-color ease-in-out .15s, box-shadow ease-in-out .15s !default;
+
+$form-text-margin-top:     .25rem !default;
+$form-feedback-margin-top: $form-text-margin-top !default;
+
+$form-check-margin-bottom:  .5rem !default;
+$form-check-input-gutter:   1.25rem !default;
+$form-check-input-margin-y: .25rem !default;
+$form-check-input-margin-x: .25rem !default;
+
+$form-check-inline-margin-x: .75rem !default;
+
 $form-group-margin-bottom:       $spacer-y !default;
 
 $input-group-addon-bg:           $gray-lightest;
 $input-group-addon-border-color: $input-border-color !default;
 
@@ -358,74 +467,76 @@
 $custom-control-gutter:   1.5rem !default;
 $custom-control-spacer-x: 1rem !default;
 $custom-control-spacer-y: .25rem !default;
 
 $custom-control-indicator-size:       1rem !default;
+$custom-control-indicator-margin-y:   (($line-height-base * 1rem) - $custom-control-indicator-size) / -2 !default;
 $custom-control-indicator-bg:         #ddd !default;
 $custom-control-indicator-bg-size:    50% 50% !default;
-$custom-control-indicator-box-shadow: inset 0 .25rem .25rem rgba(0,0,0,.1) !default;
+$custom-control-indicator-box-shadow: inset 0 .25rem .25rem rgba($black,.1) !default;
 
 $custom-control-disabled-cursor:             $cursor-disabled !default;
-$custom-control-disabled-indicator-bg:       #eee !default;
-$custom-control-disabled-description-color:  #767676 !default;
+$custom-control-disabled-indicator-bg:       $gray-lighter !default;
+$custom-control-disabled-description-color:  $gray-light !default;
 
-$custom-control-checked-indicator-color:      #fff !default;
-$custom-control-checked-indicator-bg:         #0074d9 !default;
+$custom-control-checked-indicator-color:      $white !default;
+$custom-control-checked-indicator-bg:         $brand-primary !default;
 $custom-control-checked-indicator-box-shadow: none !default;
 
-$custom-control-focus-indicator-box-shadow: 0 0 0 .075rem #fff, 0 0 0 .2rem #0074d9 !default;
+$custom-control-focus-indicator-box-shadow: 0 0 0 1px $body-bg, 0 0 0 3px $brand-primary !default;
 
-$custom-control-active-indicator-color:      #fff !default;
-$custom-control-active-indicator-bg:         #84c6ff !default;
+$custom-control-active-indicator-color:      $white !default;
+$custom-control-active-indicator-bg:         lighten($brand-primary, 35%) !default;
 $custom-control-active-indicator-box-shadow: none !default;
 
 $custom-checkbox-radius: $border-radius !default;
-$custom-checkbox-checked-icon: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3E%3Cpath fill='#{$custom-control-checked-indicator-color}' d='M6.564.75l-3.59 3.612-1.538-1.55L0 4.26 2.974 7.25 8 2.193z'/%3E%3C/svg%3E") !default;
+$custom-checkbox-checked-icon: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3E%3Cpath fill='#{$custom-control-checked-indicator-color}' d='M6.564.75l-3.59 3.612-1.538-1.55L0 4.26 2.974 7.25 8 2.193z'/%3E%3C/svg%3E"), "#", "%23") !default;
 
-$custom-checkbox-indeterminate-bg: #0074d9 !default;
+$custom-checkbox-indeterminate-bg: $brand-primary !default;
 $custom-checkbox-indeterminate-indicator-color: $custom-control-checked-indicator-color !default;
-$custom-checkbox-indeterminate-icon: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 4'%3E%3Cpath stroke='#{$custom-checkbox-indeterminate-indicator-color}' d='M0 2h4'/%3E%3C/svg%3E") !default;
+$custom-checkbox-indeterminate-icon: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 4'%3E%3Cpath stroke='#{$custom-checkbox-indeterminate-indicator-color}' d='M0 2h4'/%3E%3C/svg%3E"), "#", "%23") !default;
 $custom-checkbox-indeterminate-box-shadow: none !default;
 
 $custom-radio-radius: 50% !default;
-$custom-radio-checked-icon: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3E%3Ccircle r='3' fill='#{$custom-control-checked-indicator-color}'/%3E%3C/svg%3E") !default;
+$custom-radio-checked-icon: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3E%3Ccircle r='3' fill='#{$custom-control-checked-indicator-color}'/%3E%3C/svg%3E"), "#", "%23") !default;
 
 $custom-select-padding-x:          .75rem  !default;
 $custom-select-padding-y:          .375rem !default;
-$custom-select-indicator-padding:  1rem !default; // Extra padding to account for the presence of the background-image based indicator
-$custom-select-color:          $input-color !default;
-$custom-select-disabled-color: $gray-light !default;
-$custom-select-bg:            #fff !default;
+$custom-select-indicator-padding:   1rem !default; // Extra padding to account for the presence of the background-image based indicator
+$custom-select-line-height:         $input-line-height !default;
+$custom-select-color:               $input-color !default;
+$custom-select-disabled-color:      $gray-light !default;
+$custom-select-bg:            $white !default;
 $custom-select-disabled-bg:   $gray-lighter !default;
 $custom-select-bg-size:       8px 10px !default; // In pixels because image dimensions
 $custom-select-indicator-color: #333 !default;
-$custom-select-indicator:     url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3E%3Cpath fill='#{$custom-select-indicator-color}' d='M2 0L0 2h4zm0 5L0 3h4z'/%3E%3C/svg%3E") !default;
+$custom-select-indicator:     str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3E%3Cpath fill='#{$custom-select-indicator-color}' d='M2 0L0 2h4zm0 5L0 3h4z'/%3E%3C/svg%3E"), "#", "%23") !default;
 $custom-select-border-width:  $input-btn-border-width !default;
 $custom-select-border-color:  $input-border-color !default;
 $custom-select-border-radius: $border-radius !default;
 
-$custom-select-focus-border-color: #51a7e8 !default;
-$custom-select-focus-box-shadow:   inset 0 1px 2px rgba(0, 0, 0, .075), 0 0 5px rgba(81, 167, 232, .5) !default;
+$custom-select-focus-border-color: lighten($brand-primary, 25%) !default;
+$custom-select-focus-box-shadow:   inset 0 1px 2px rgba($black, .075), 0 0 5px rgba($custom-select-focus-border-color, .5) !default;
 
-$custom-select-sm-padding-y: .2rem !default;
-$custom-select-sm-font-size: 75% !default;
+$custom-select-sm-padding-y:  .2rem !default;
+$custom-select-sm-font-size:  75% !default;
 
 $custom-file-height:           2.5rem !default;
 $custom-file-width:            14rem !default;
-$custom-file-focus-box-shadow: 0 0 0 .075rem #fff, 0 0 0 .2rem #0074d9 !default;
+$custom-file-focus-box-shadow: 0 0 0 .075rem $white, 0 0 0 .2rem $brand-primary !default;
 
 $custom-file-padding-x:     .5rem !default;
 $custom-file-padding-y:     1rem !default;
 $custom-file-line-height:   1.5 !default;
-$custom-file-color:         #555 !default;
-$custom-file-bg:            #fff !default;
+$custom-file-color:         $gray !default;
+$custom-file-bg:            $white !default;
 $custom-file-border-width:  $border-width !default;
-$custom-file-border-color:  #ddd !default;
+$custom-file-border-color:  $input-border-color !default;
 $custom-file-border-radius: $border-radius !default;
-$custom-file-box-shadow:    inset 0 .2rem .4rem rgba(0,0,0,.05) !default;
+$custom-file-box-shadow:    inset 0 .2rem .4rem rgba($black,.05) !default;
 $custom-file-button-color:  $custom-file-color !default;
-$custom-file-button-bg:     #eee !default;
+$custom-file-button-bg:     $gray-lighter !default;
 $custom-file-text: (
   placeholder: (
     en: "Choose file..."
   ),
   button-label: (
@@ -434,31 +545,31 @@
 ) !default;
 
 
 // Form validation icons
 $form-icon-success-color: $brand-success !default;
-$form-icon-success: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3E%3Cpath fill='#{$form-icon-success-color}' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3E%3C/svg%3E") !default;
+$form-icon-success: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3E%3Cpath fill='#{$form-icon-success-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'/%3E%3C/svg%3E"), "#", "%23") !default;
 
 $form-icon-warning-color: $brand-warning !default;
-$form-icon-warning: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3E%3Cpath fill='#{$form-icon-warning-color}' d='M4.4 5.324h-.8v-2.46h.8zm0 1.42h-.8V5.89h.8zM3.76.63L.04 7.075c-.115.2.016.425.26.426h7.397c.242 0 .372-.226.258-.426C6.726 4.924 5.47 2.79 4.253.63c-.113-.174-.39-.174-.494 0z'/%3E%3C/svg%3E") !default;
+$form-icon-warning: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3E%3Cpath fill='#{$form-icon-warning-color}' d='M4.4 5.324h-.8v-2.46h.8zm0 1.42h-.8V5.89h.8zM3.76.63L.04 7.075c-.115.2.016.425.26.426h7.397c.242 0 .372-.226.258-.426C6.726 4.924 5.47 2.79 4.253.63c-.113-.174-.39-.174-.494 0z'/%3E%3C/svg%3E"), "#", "%23") !default;
 
 $form-icon-danger-color: $brand-danger !default;
-$form-icon-danger: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='#{$form-icon-danger-color}' viewBox='-2 -2 7 7'%3E%3Cpath stroke='%23d9534f' d='M0 0l3 3m0-3L0 3'/%3E%3Ccircle r='.5'/%3E%3Ccircle cx='3' r='.5'/%3E%3Ccircle cy='3' r='.5'/%3E%3Ccircle cx='3' cy='3' r='.5'/%3E%3C/svg%3E") !default;
+$form-icon-danger: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='#{$form-icon-danger-color}' viewBox='-2 -2 7 7'%3E%3Cpath stroke='%23d9534f' d='M0 0l3 3m0-3L0 3'/%3E%3Ccircle r='.5'/%3E%3Ccircle cx='3' r='.5'/%3E%3Ccircle cy='3' r='.5'/%3E%3Ccircle cx='3' cy='3' r='.5'/%3E%3C/svg%3E"), "#", "%23") !default;
 
 
 // Dropdowns
 //
 // Dropdown menu container and contents.
 
 $dropdown-min-width:             10rem !default;
 $dropdown-padding-y:             .5rem !default;
 $dropdown-margin-top:            .125rem !default;
-$dropdown-bg:                    #fff !default;
-$dropdown-border-color:          rgba(0,0,0,.15) !default;
+$dropdown-bg:                    $white !default;
+$dropdown-border-color:          rgba($black,.15) !default;
 $dropdown-border-width:          $border-width !default;
-$dropdown-divider-bg:            #e5e5e5 !default;
-$dropdown-box-shadow:            0 .5rem 1rem rgba(0,0,0,.175) !default;
+$dropdown-divider-bg:            $gray-lighter !default;
+$dropdown-box-shadow:            0 .5rem 1rem rgba($black,.175) !default;
 
 $dropdown-link-color:            $gray;
 $dropdown-link-hover-color:      $dropdown-link-color;
 $dropdown-link-hover-bg:         $gray-lightest;
 
@@ -476,60 +587,54 @@
 //
 // Warning: Avoid customizing these values. They're used for a bird's eye view
 // of components dependent on the z-axis and are designed to all work together.
 
 $zindex-dropdown-backdrop:  990 !default;
-$zindex-navbar:            1000 !default;
-$zindex-dropdown:          1000 !default;
-$zindex-popover:           1060 !default;
-$zindex-tooltip:           1070 !default;
-$zindex-navbar-fixed:      1030 !default;
-$zindex-navbar-sticky:     1030 !default;
-$zindex-modal-bg:          1040 !default;
-$zindex-modal:             1050 !default;
+$zindex-navbar:             1000 !default;
+$zindex-dropdown:           1000 !default;
+$zindex-fixed:              1030 !default;
+$zindex-sticky:             1030 !default;
+$zindex-modal-backdrop:     1040 !default;
+$zindex-modal:              1050 !default;
+$zindex-popover:            1060 !default;
+$zindex-tooltip:            1070 !default;
 
 
 // Navbar
 
 $navbar-border-radius:              $border-radius !default;
 $navbar-padding-x:                  $spacer !default;
 $navbar-padding-y:                  ($spacer / 2) !default;
 
 $navbar-brand-padding-y:            .25rem !default;
 
-$navbar-divider-padding-y:          .425rem !default;
-
 $navbar-toggler-padding-x:           .75rem !default;
-$navbar-toggler-padding-y:           .5rem !default;
+$navbar-toggler-padding-y:           .25rem !default;
 $navbar-toggler-font-size:           $font-size-lg !default;
 $navbar-toggler-border-radius:       $btn-border-radius !default;
-$navbar-toggler-padding-x:           .75rem !default;
-$navbar-toggler-padding-y:           .5rem !default;
 
-$navbar-dark-color:                 rgba(255,255,255,.5) !default;
-$navbar-dark-hover-color:           rgba(255,255,255,1);
-$navbar-dark-active-color:          rgba(255,255,255,1) !default;
-$navbar-dark-disabled-color:        rgba(255,255,255,.25) !default;
-$navbar-dark-toggler-bg: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 32 32' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='#{$navbar-dark-color}' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 8h24M4 16h24M4 24h24'/%3E%3C/svg%3E") !default;
-$navbar-dark-toggler-border:        rgba(255,255,255,.1) !default;
+$navbar-inverse-color:                 rgba(255,255,255,.5) !default;
+$navbar-inverse-hover-color:           rgba(255,255,255,1);
+$navbar-inverse-active-color:          rgba(255,255,255,1) !default;
+$navbar-inverse-disabled-color:        rgba(255,255,255,.25) !default;
+$navbar-inverse-toggler-bg: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 32 32' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='#{$navbar-inverse-color}' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 8h24M4 16h24M4 24h24'/%3E%3C/svg%3E"), "#", "%23") !default;
+$navbar-inverse-toggler-border:        rgba($white,.1) !default;
 
 $navbar-light-color:                rgba(0,0,0,.5) !default;
 $navbar-light-hover-color:          rgba(0,0,0,1);
 $navbar-light-active-color:         rgba(0,0,0,1);
 $navbar-light-disabled-color:       rgba(0,0,0,.3) !default;
-$navbar-light-toggler-bg: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 32 32' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='#{$navbar-light-color}' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 8h24M4 16h24M4 24h24'/%3E%3C/svg%3E") !default;
-$navbar-light-toggler-border:       rgba(0,0,0,.1) !default;
+$navbar-light-toggler-bg: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 32 32' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='#{$navbar-light-color}' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 8h24M4 16h24M4 24h24'/%3E%3C/svg%3E"), "#", "%23") !default;
+$navbar-light-toggler-border:       rgba($black,.1) !default;
 
 // Navs
 
 $nav-item-margin:               .2rem !default;
 $nav-item-inline-spacer:        1rem !default;
-$nav-link-padding:              .5em 1em !default;
+$nav-link-padding:              .9em 1em;
 $nav-link-hover-bg:             $gray-lighter !default;
 $nav-disabled-link-color:       $gray-lighter;
-$nav-disabled-link-hover-color: $gray-lighter;
-$nav-disabled-link-hover-bg:    $gray-lightest;
 
 $nav-tabs-border-color:                       $gray-lighter;
 $nav-tabs-border-width:                       $border-width !default;
 $nav-tabs-border-radius:                      $border-radius !default;
 $nav-tabs-link-hover-border-color:            $gray-lighter !default;
@@ -546,16 +651,16 @@
 
 // Pagination
 
 $pagination-padding-x:                .75rem !default;
 $pagination-padding-y:                .5rem !default;
-$pagination-padding-x-sm:             .75rem !default;
-$pagination-padding-y-sm:             .275rem !default;
+$pagination-padding-x-sm:             .5rem !default;
+$pagination-padding-y-sm:             .25rem !default;
 $pagination-padding-x-lg:             1.5rem !default;
 $pagination-padding-y-lg:             .75rem !default;
+$pagination-line-height:              1.25 !default;
 
-
 $pagination-color:                     $gray;
 $pagination-bg:                        $gray-lightest;
 $pagination-border-width:              $border-width !default;
 $pagination-border-color:              $gray-lighter;
 
@@ -599,10 +704,11 @@
 $state-danger-bg:                $brand-danger;
 $state-danger-border:            transparent;
 
 
 // Cards
+
 $card-spacer-x:            1.25rem !default;
 $card-spacer-y:            .75rem !default;
 $card-border-width:        1px !default;
 $card-border-radius:       $border-radius !default;
 $card-border-color:        $gray-lighter;
@@ -612,20 +718,22 @@
 
 $card-link-hover-color:    #fff !default;
 
 $card-img-overlay-padding: 1.25rem !default;
 
-$card-deck-margin:         .625rem !default;
+$card-deck-margin:          ($grid-gutter-width-base / 2) !default;
 
-$card-columns-sm-up-column-gap: 1.25rem !default;
+$card-columns-count:        3 !default;
+$card-columns-gap:          1.25rem !default;
+$card-columns-margin:       $card-spacer-y !default;
 
 
 // Tooltips
 
 $tooltip-max-width:           200px !default;
-$tooltip-color:               #fff !default;
-$tooltip-bg:                  #000 !default;
+$tooltip-color:               $white !default;
+$tooltip-bg:                  $black !default;
 $tooltip-opacity:             .9 !default;
 $tooltip-padding-y:           3px !default;
 $tooltip-padding-x:           8px !default;
 $tooltip-margin:              3px !default;
 
@@ -634,15 +742,15 @@
 
 
 // Popovers
 
 $popover-inner-padding:               1px !default;
-$popover-bg:                          #fff !default;
+$popover-bg:                          $white !default;
 $popover-max-width:                   276px !default;
 $popover-border-width:                $border-width !default;
-$popover-border-color:                rgba(0,0,0,.2) !default;
-$popover-box-shadow:                  0 5px 10px rgba(0,0,0,.2) !default;
+$popover-border-color:                rgba($black,.2) !default;
+$popover-box-shadow:                  0 5px 10px rgba($black,.2) !default;
 
 $popover-title-bg:                    $gray-lightest;
 $popover-title-padding-x:             14px !default;
 $popover-title-padding-y:             8px !default;
 
@@ -654,68 +762,72 @@
 
 $popover-arrow-outer-width:           ($popover-arrow-width + 1px) !default;
 $popover-arrow-outer-color:           fade-in($popover-border-color, .05) !default;
 
 
-// Tags
+// Badges
 
-$tag-default-bg:            $gray-light !default;
-$tag-primary-bg:            $brand-primary !default;
-$tag-success-bg:            $brand-success !default;
-$tag-info-bg:               $brand-info !default;
-$tag-warning-bg:            $brand-warning !default;
-$tag-danger-bg:             $brand-danger !default;
+$badge-default-bg:            $gray-light !default;
+$badge-primary-bg:            $brand-primary !default;
+$badge-success-bg:            $brand-success !default;
+$badge-info-bg:               $brand-info !default;
+$badge-warning-bg:            $brand-warning !default;
+$badge-danger-bg:             $brand-danger !default;
 
-$tag-color:                 #fff !default;
-$tag-link-hover-color:      #fff !default;
-$tag-font-size:             75% !default;
-$tag-font-weight:           bold !default;
-$tag-padding-x:             .4em !default;
-$tag-padding-y:             .25em !default;
+$badge-color:                 $white !default;
+$badge-link-hover-color:      $white !default;
+$badge-font-size:             75% !default;
+$badge-font-weight:           $font-weight-bold !default;
+$badge-padding-x:             .4em !default;
+$badge-padding-y:             .25em !default;
 
-$tag-pill-padding-x:        .6em !default;
+$badge-pill-padding-x:        .6em !default;
 // Use a higher than normal value to ensure completely rounded edges when
 // customizing padding or font-size on labels.
-$tag-pill-border-radius:    10rem !default;
+$badge-pill-border-radius:    10rem !default;
 
+
 // Modals
 
 // Padding applied to the modal body
 $modal-inner-padding:         15px !default;
 
 $modal-dialog-margin:         10px !default;
 $modal-dialog-sm-up-margin-y: 30px !default;
 
-$modal-title-padding:         15px !default;
 $modal-title-line-height:     $line-height-base !default;
 
 $modal-content-bg:               #fff !default;
 $modal-content-border-color:     $gray-lighter;
 $modal-content-border-width:     $border-width !default;
-$modal-content-xs-box-shadow:    0 3px 9px rgba(0,0,0,.5) !default;
-$modal-content-sm-up-box-shadow: 0 5px 15px rgba(0,0,0,.5) !default;
+$modal-content-xs-box-shadow:    0 3px 9px rgba($black,.5) !default;
+$modal-content-sm-up-box-shadow: 0 5px 15px rgba($black,.5) !default;
 
 $modal-backdrop-bg:           #000 !default;
 $modal-backdrop-opacity:      .5 !default;
 $modal-header-border-color:   $modal-content-border-color;
 $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:        15px !default;
 
-$modal-lg:                    900px !default;
-$modal-md:                    600px !default;
+$modal-lg:                    800px !default;
+$modal-md:                    500px !default;
 $modal-sm:                    300px !default;
 
+$modal-transition:            transform .3s ease-out !default;
 
+
 // Alerts
 //
 // Define alert colors, border radius, and padding.
 
 $alert-padding-x:             1.25rem !default;
 $alert-padding-y:             .75rem !default;
+$alert-margin-bottom:         $spacer-y !default;
 $alert-border-radius:         $border-radius !default;
-$alert-link-font-weight:      bold !default;
+$alert-link-font-weight:      $font-weight-bold !default;
 $alert-border-width:          $border-width !default;
 
 $alert-success-bg:            $state-success-bg !default;
 $alert-success-text:          $state-success-text !default;
 $alert-success-border:        $state-success-border !default;
@@ -733,61 +845,63 @@
 $alert-danger-border:         $state-danger-border !default;
 
 
 // Progress bars
 
-$progress-bg:                 $gray-lighter;
-$progress-bar-color:          $brand-primary;
-$progress-border-radius:      10px;
-$progress-box-shadow:         inset 0 .1rem .1rem rgba(0,0,0,.1) !default;
+$progress-height:               1rem !default;
+$progress-font-size:            .75rem !default;
+$progress-bg:                   $gray-lighter;
+$progress-border-radius:        10px;
+$progress-box-shadow:           inset 0 .1rem .1rem rgba($black,.1) !default;
+$progress-bar-color:            $brand-primary;
+$progress-bar-bg:               $brand-primary !default;
+$progress-bar-animation-timing: 1s linear infinite !default;
 
-$progress-bar-bg:             $brand-primary !default;
-$progress-bar-success-bg:     $brand-success !default;
-$progress-bar-warning-bg:     $brand-warning !default;
-$progress-bar-danger-bg:      $brand-danger !default;
-$progress-bar-info-bg:        $brand-info !default;
-
-
 // List group
 
+$list-group-color:               $body-color !default;
 $list-group-bg:                 #fff !default;
 $list-group-border-color:       $gray-lighter;
-$list-group-border-width:       $border-width !default;
-$list-group-border-radius:      $border-radius !default;
+$list-group-border-width:        $border-width !default;
+$list-group-border-radius:       $border-radius !default;
 
+$list-group-item-padding-x:      1.25rem !default;
+$list-group-item-padding-y:      .75rem !default;
+
 $list-group-hover-bg:           $gray-lightest;
 $list-group-active-color:       $body-color;
 $list-group-active-bg:          $gray-lightest;
 $list-group-active-border:      $gray-lighter;
 $list-group-active-text-color:  $body-color;
 
 $list-group-disabled-color:      $gray-light !default;
 $list-group-disabled-bg:         #fff;
 $list-group-disabled-text-color: $list-group-disabled-color !default;
 
-$list-group-link-color:         $body-color;
-$list-group-link-hover-color:   $list-group-link-color !default;
-$list-group-link-heading-color: #333 !default;
+$list-group-link-color:          $body-color;
+$list-group-link-heading-color:  $gray-dark !default;
+$list-group-link-hover-color:    $list-group-link-color !default;
 
-$list-group-item-padding-x:             1.25rem !default;
-$list-group-item-padding-y:             .75rem !default;
-$list-group-item-heading-margin-bottom: 5px !default;
+$list-group-link-active-color:   $list-group-color !default;
+$list-group-link-active-bg:      $gray-lighter !default;
 
 
 // Image thumbnails
 
 $thumbnail-padding:           .25rem !default;
 $thumbnail-bg:                $body-bg !default;
 $thumbnail-border-width:      $border-width !default;
 $thumbnail-border-color:      #ddd !default;
 $thumbnail-border-radius:     $border-radius !default;
-$thumbnail-box-shadow:        0 1px 2px rgba(0,0,0,.075) !default;
+$thumbnail-box-shadow:        0 1px 2px rgba($black,.075) !default;
+$thumbnail-transition:        all .2s ease-in-out !default;
 
 
 // Figures
 
 $figure-caption-font-size: 90% !default;
+$figure-caption-color:     $gray-light !default;
 
 
 // Breadcrumbs
 
 $breadcrumb-padding-y:          .75rem !default;
@@ -798,58 +912,50 @@
 $breadcrumb-divider-color:      $gray-light !default;
 $breadcrumb-active-color:       $gray-light !default;
 $breadcrumb-divider:            "/" !default;
 
 
-// Media objects
-
-$media-margin-top:            15px !default;
-$media-heading-margin-bottom:  5px !default;
-$media-alignment-padding-x:   10px !default;
-
-
 // Carousel
 
-$carousel-text-shadow:                        0 1px 2px rgba(0,0,0,.6) !default;
-
-$carousel-control-color:                      #fff !default;
+$carousel-control-color:                      $white !default;
 $carousel-control-width:                      15% !default;
-$carousel-control-sm-up-size:                 30px !default;
 $carousel-control-opacity:                    .5 !default;
-$carousel-control-font-size:                  20px !default;
 
-$carousel-indicators-width:                   60% !default;
+$carousel-indicator-width:                    30px !default;
+$carousel-indicator-height:                   3px !default;
+$carousel-indicator-spacer:                   3px !default;
+$carousel-indicator-active-bg:                $white !default;
 
-$carousel-indicator-size:                     10px !default;
-$carousel-indicator-active-size:              12px !default;
-$carousel-indicator-active-bg:                #fff !default;
-$carousel-indicator-border-color:             #fff !default;
-
 $carousel-caption-width:                      70% !default;
-$carousel-caption-sm-up-width:                60% !default;
-$carousel-caption-color:                      #fff !default;
+$carousel-caption-color:                      $white !default;
 
-$carousel-icon-width:                         20px !default;
+$carousel-control-icon-width:                 20px !default;
 
+$carousel-control-prev-icon-bg: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='#{$carousel-control-color}' viewBox='0 0 8 8'%3E%3Cpath d='M4 0l-4 4 4 4 1.5-1.5-2.5-2.5 2.5-2.5-1.5-1.5z'/%3E%3C/svg%3E"), "#", "%23") !default;
+$carousel-control-next-icon-bg: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='#{$carousel-control-color}' viewBox='0 0 8 8'%3E%3Cpath d='M1.5 0l-1.5 1.5 2.5 2.5-2.5 2.5 1.5 1.5 4-4-4-4z'/%3E%3C/svg%3E"), "#", "%23") !default;
 
+$carousel-transition:           transform .6s ease-in-out !default;
+
+
 // Close
 
-$close-font-weight:           bold !default;
-$close-color:                 #000 !default;
+$close-font-size:             $font-size-base * 1.5 !default;
+$close-font-weight:           $font-weight-bold !default;
+$close-color:                 $black !default;
 $close-text-shadow:           none;
 
 
 // Code
 
 $code-font-size:              90% !default;
 $code-padding-x:              .4rem !default;
 $code-padding-y:              .2rem !default;
 $code-color:                  #bd4147 !default;
-$code-bg:                     #f7f7f9 !default;
+$code-bg:                     $gray-lightest !default;
 
-$kbd-color:                   #fff !default;
-$kbd-bg:                      #333 !default;
+$kbd-color:                   $white !default;
+$kbd-bg:                      $gray-dark !default;
 
-$pre-bg:                      #f7f7f9 !default;
+$pre-bg:                      $gray-lightest !default;
 $pre-color:                   $gray-dark !default;
 $pre-border-color:            #ccc !default;
 $pre-scrollable-max-height:   340px !default;