From adef0acbd8f707bf219de51ca441b4ef19cd94a4 Mon Sep 17 00:00:00 2001
From: Aleksandar Kostadinov <akostadi@redhat.com>
Date: Feb 19 2017 19:14:51 +0000
Subject: fully using bootstrap 4 from gem


---

diff --git a/_ext/bootstrap_gem_js.rb b/_ext/bootstrap_gem_js.rb
new file mode 100644
index 0000000..11c6c6d
--- /dev/null
+++ b/_ext/bootstrap_gem_js.rb
@@ -0,0 +1,13 @@
+class BootstrapGemJS
+  def execute(site)
+    desired_dist = "bootstrap.js"
+    javascripts = File.join site.output_dir, "javascripts"
+    dst = File.join javascripts, desired_dist
+    src = File.join Bootstrap.javascripts_path, desired_dist
+
+    unless File.exists? dst
+      FileUtils.mkdir_p javascripts
+      FileUtils.cp src, dst
+    end
+  end
+end
diff --git a/_ext/pipeline.rb b/_ext/pipeline.rb
index 38ac767..869d35e 100644
--- a/_ext/pipeline.rb
+++ b/_ext/pipeline.rb
@@ -1,5 +1,7 @@
 require 'bootstrap'
 
+require 'bootstrap_gem_js'
+
 # done instead in _config/site.yml
 # Slim::Engine.options[:pretty] = true
 
@@ -7,6 +9,8 @@ Awestruct::Extensions::Pipeline.new do
   helper Awestruct::Extensions::Partial
   helper Awestruct::Extensions::Relative
 
+  extension BootstrapGemJS.new
+
   # extension Awestruct::Extensions::Posts.new '/news'
   # extension Awestruct::Extensions::Indexifier.new
   # Indexifier *must* come before Atomizer
diff --git a/_layouts/base.html.slim b/_layouts/base.html.slim
index 87862f7..eebcedc 100644
--- a/_layouts/base.html.slim
+++ b/_layouts/base.html.slim
@@ -64,6 +64,6 @@ html
       footer
         p &copy; #{site.org} #{Date.today.year}
     script type='text/javascript' src='//cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js' crossorigin="anonymous" integrity="sha384-EaUkI/FiMJtEXWAl0dCczvbFvjfzsIF1UNKGJvu9p5JIG71Kih7/kQJvYbBL7HOn"
-    / script type='text/javascript' src="#{site.base_url}/deps/tether/dist/js/tether.js"
-    script type='text/javascript' src="#{site.base_url}/javascripts/site.js" }
-    / script type='text/javascript' src="#{site.base_url}/deps/bootstrap/js/bootstrap.js"
+    script type='text/javascript' src="#{site.base_url}/deps/tether/dist/js/tether.js"
+    script type='text/javascript' src="#{site.base_url}/javascripts/bootstrap.js"
+    script type='text/javascript' src="#{site.base_url}/javascripts/site.js"
diff --git a/config.rb b/config.rb
index a1f70c7..86109b2 100644
--- a/config.rb
+++ b/config.rb
@@ -1,4 +1,5 @@
 require 'compass/import-once/activate'
+# require 'bootstrap' # appears not needed
 # Require any additional compass plugins here.
 project_type = :stand_alone
 
diff --git a/stylesheets/_bootstrap-variables.scss b/stylesheets/_bootstrap-variables.scss
new file mode 100644
index 0000000..bc2fff6
--- /dev/null
+++ b/stylesheets/_bootstrap-variables.scss
@@ -0,0 +1,941 @@
+// Override Bootstrap variables here (defaults from bootstrap v4.0.0-alpha.6):
+
+
+// Table of Contents
+//
+// Colors
+// Options
+// Spacing
+// Body
+// Links
+// 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
+
+
+// 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;
+// $black:  #000;
+// $red:    #d9534f;
+// $orange: #f0ad4e;
+// $yellow: #ffd500;
+// $green:  #5cb85c;
+// $blue:   #0275d8;
+// $teal:   #5bc0de;
+// $pink:   #ff5b77;
+// $purple: #613d7c;
+
+// Create grayscale
+// $gray-dark:                 #292b2c;
+// $gray:                      #464a4c;
+// $gray-light:                #636c72;
+// $gray-lighter:              #eceeef;
+// $gray-lightest:             #f7f7f9;
+
+// Reassign color vars to semantic color scheme
+// $brand-primary:             $blue;
+// $brand-success:             $green;
+// $brand-info:                $teal;
+// $brand-warning:             $orange;
+// $brand-danger:              $red;
+// $brand-inverse:             $gray-dark;
+
+
+// Options
+//
+// Quickly modify global styling by enabling or disabling optional features.
+
+// $enable-rounded:            true;
+// $enable-shadows:            false;
+// $enable-gradients:          false;
+// $enable-transitions:        true;
+// $enable-hover-media-query:  false;
+// $enable-grid-classes:       true;
+// $enable-print-styles:       true;
+
+
+// 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;
+// $spacer-x: $spacer;
+// $spacer-y: $spacer;
+// $spacers: (
+//   0: (
+//     x: 0,
+//     y: 0
+//   ),
+//   1: (
+//     x: ($spacer-x * .25),
+//     y: ($spacer-y * .25)
+//   ),
+//   2: (
+//     x: ($spacer-x * .5),
+//     y: ($spacer-y * .5)
+//   ),
+//   3: (
+//     x: $spacer-x,
+//     y: $spacer-y
+//   ),
+//   4: (
+//     x: ($spacer-x * 1.5),
+//     y: ($spacer-y * 1.5)
+//   ),
+//   5: (
+//     x: ($spacer-x * 3),
+//     y: ($spacer-y * 3)
+//   )
+// );
+// $border-width: 1px;
+
+// This variable affects the `.h-*` and `.w-*` classes.
+// $sizes: (
+//   25: 25%,
+//   50: 50%,
+//   75: 75%,
+//   100: 100%
+// );
+
+// Body
+//
+// Settings for the `<body>` element.
+
+// $body-bg:       $white;
+// $body-color:    $gray-dark;
+// $inverse-bg:    $gray-dark;
+// $inverse-color: $gray-lighter;
+
+
+// Links
+//
+// Style anchor elements.
+
+// $link-color:            $brand-primary;
+// $link-decoration:       none;
+// $link-hover-color:      darken($link-color, 15%);
+// $link-hover-decoration: underline;
+
+
+// Grid breakpoints
+//
+// Define the minimum dimensions at which your layout will change,
+// adapting to different screen sizes, for use in media queries.
+
+// $grid-breakpoints: (
+//   xs: 0,
+//   sm: 576px,
+//   md: 768px,
+//   lg: 992px,
+//   xl: 1200px
+// );
+// @include _assert-starts-at-zero($grid-breakpoints);
+
+
+// Grid containers
+//
+// Define the maximum width of `.container` for different screen sizes.
+
+// $container-max-widths: (
+//   sm: 540px,
+//   md: 720px,
+//   lg: 960px,
+//   xl: 1140px
+// );
+
+
+// Grid columns
+//
+// Set the number of columns and specify the width of the gutters.
+
+// $grid-columns:               12;
+// $grid-gutter-width-base:     30px;
+// $grid-gutter-widths: (
+//   xs: $grid-gutter-width-base,
+//   sm: $grid-gutter-width-base,
+//   md: $grid-gutter-width-base,
+//   lg: $grid-gutter-width-base,
+//   xl: $grid-gutter-width-base
+// );
+
+// Fonts
+//
+// Font, line-height, and color for body text, headings, and more.
+
+// $font-family-sans-serif: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
+// $font-family-serif:      Georgia, "Times New Roman", Times, serif;
+// $font-family-monospace:  Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
+// $font-family-base:       $font-family-sans-serif;
+
+// $font-size-base: 1rem; // Assumes the browser default, typically `16px`
+// $font-size-lg:   1.25rem;
+// $font-size-sm:   .875rem;
+// $font-size-xs:   .75rem;
+
+// $font-weight-normal: normal;
+// $font-weight-bold: bold;
+
+// $font-weight-base: $font-weight-normal;
+// $line-height-base: 1.5;
+
+// $font-size-h1: 2.5rem;
+// $font-size-h2: 2rem;
+// $font-size-h3: 1.75rem;
+// $font-size-h4: 1.5rem;
+// $font-size-h5: 1.25rem;
+// $font-size-h6: 1rem;
+
+// $headings-margin-bottom: ($spacer / 2);
+// $headings-font-family:   inherit;
+// $headings-font-weight:   500;
+// $headings-line-height:   1.1;
+// $headings-color:         inherit;
+
+// $display1-size: 6rem;
+// $display2-size: 5.5rem;
+// $display3-size: 4.5rem;
+// $display4-size: 3.5rem;
+
+// $display1-weight:     300;
+// $display2-weight:     300;
+// $display3-weight:     300;
+// $display4-weight:     300;
+// $display-line-height: $headings-line-height;
+
+// $lead-font-size:   1.25rem;
+// $lead-font-weight: 300;
+
+// $small-font-size: 80%;
+
+// $text-muted: $gray-light;
+
+// $abbr-border-color: $gray-light;
+
+// $blockquote-small-color:  $gray-light;
+// $blockquote-font-size:    ($font-size-base * 1.25);
+// $blockquote-border-color: $gray-lighter;
+// $blockquote-border-width: .25rem;
+
+// $hr-border-color: rgba($black,.1);
+// $hr-border-width: $border-width;
+
+// $mark-padding: .2em;
+
+// $dt-font-weight: $font-weight-bold;
+
+// $kbd-box-shadow:         inset 0 -.1rem 0 rgba($black,.25);
+// $nested-kbd-font-weight: $font-weight-bold;
+
+// $list-inline-padding: 5px;
+
+
+// Components
+//
+// Define common padding and border radius sizes and more.
+
+// $line-height-lg:         (4 / 3);
+// $line-height-sm:         1.5;
+
+// $border-radius:          .25rem;
+// $border-radius-lg:       .3rem;
+// $border-radius-sm:       .2rem;
+
+// $component-active-color: $white;
+// $component-active-bg:    $brand-primary;
+
+// $caret-width:            .3em;
+
+// $transition-base:        all .2s ease-in-out;
+// $transition-fade:        opacity .15s linear;
+// $transition-collapse:    height .35s ease;
+
+
+// Tables
+//
+// Customizes the `.table` component with basic values, each used across all table variations.
+
+// $table-cell-padding:            .75rem;
+// $table-sm-cell-padding:         .3rem;
+
+// $table-bg:                      transparent;
+
+// $table-inverse-bg:              $gray-dark;
+// $table-inverse-color:           $body-bg;
+
+// $table-bg-accent:               rgba($black,.05);
+// $table-bg-hover:                rgba($black,.075);
+// $table-bg-active:               $table-bg-hover;
+
+// $table-head-bg:                 $gray-lighter;
+// $table-head-color:              $gray;
+
+// $table-border-width:            $border-width;
+// $table-border-color:            $gray-lighter;
+
+
+// Buttons
+//
+// For each of Bootstrap's buttons, define text, background and border color.
+
+// $btn-padding-x:                  1rem;
+// $btn-padding-y:                  .5rem;
+// $btn-line-height:                1.25;
+// $btn-font-weight:                $font-weight-normal;
+// $btn-box-shadow:                 inset 0 1px 0 rgba($white,.15), 0 1px 1px rgba($black,.075);
+// $btn-focus-box-shadow:           0 0 0 2px rgba($brand-primary, .25);
+// $btn-active-box-shadow:          inset 0 3px 5px rgba($black,.125);
+
+// $btn-primary-color:              $white;
+// $btn-primary-bg:                 $brand-primary;
+// $btn-primary-border:             $btn-primary-bg;
+
+// $btn-secondary-color:            $gray-dark;
+// $btn-secondary-bg:               $white;
+// $btn-secondary-border:           #ccc;
+
+// $btn-info-color:                 $white;
+// $btn-info-bg:                    $brand-info;
+// $btn-info-border:                $btn-info-bg;
+
+// $btn-success-color:              $white;
+// $btn-success-bg:                 $brand-success;
+// $btn-success-border:             $btn-success-bg;
+
+// $btn-warning-color:              $white;
+// $btn-warning-bg:                 $brand-warning;
+// $btn-warning-border:             $btn-warning-bg;
+
+// $btn-danger-color:               $white;
+// $btn-danger-bg:                  $brand-danger;
+// $btn-danger-border:              $btn-danger-bg;
+
+// $btn-link-disabled-color:        $gray-light;
+
+// $btn-padding-x-sm:               .5rem;
+// $btn-padding-y-sm:               .25rem;
+
+// $btn-padding-x-lg:               1.5rem;
+// $btn-padding-y-lg:               .75rem;
+
+// $btn-block-spacing-y:            .5rem;
+// $btn-toolbar-margin:             .5rem;
+
+// Allows for customizing button radius independently from global border radius
+// $btn-border-radius:              $border-radius;
+// $btn-border-radius-lg:           $border-radius-lg;
+// $btn-border-radius-sm:           $border-radius-sm;
+
+// $btn-transition:                 all .2s ease-in-out;
+
+
+// Forms
+
+// $input-padding-x:                .75rem;
+// $input-padding-y:                .5rem;
+// $input-line-height:              1.25;
+
+// $input-bg:                       $white;
+// $input-bg-disabled:              $gray-lighter;
+
+// $input-color:                    $gray;
+// $input-border-color:             rgba($black,.15);
+// $input-btn-border-width:         $border-width; // For form controls and buttons
+// $input-box-shadow:               inset 0 1px 1px rgba($black,.075);
+
+// $input-border-radius:            $border-radius;
+// $input-border-radius-lg:         $border-radius-lg;
+// $input-border-radius-sm:         $border-radius-sm;
+
+// $input-bg-focus:                 $input-bg;
+// $input-border-focus:             lighten($brand-primary, 25%);
+// $input-box-shadow-focus:         $input-box-shadow, rgba($input-border-focus, .6);
+// $input-color-focus:              $input-color;
+
+// $input-color-placeholder:        $gray-light;
+
+// $input-padding-x-sm:             .5rem;
+// $input-padding-y-sm:             .25rem;
+
+// $input-padding-x-lg:             1.5rem;
+// $input-padding-y-lg:             .75rem;
+
+// $input-height:                   (($font-size-base * $input-line-height) + ($input-padding-y * 2));
+// $input-height-lg:                (($font-size-lg * $line-height-lg) + ($input-padding-y-lg * 2));
+// $input-height-sm:                (($font-size-sm * $line-height-sm) + ($input-padding-y-sm * 2));
+
+// $input-transition:               border-color ease-in-out .15s, box-shadow ease-in-out .15s;
+
+// $form-text-margin-top:     .25rem;
+// $form-feedback-margin-top: $form-text-margin-top;
+
+// $form-check-margin-bottom:  .5rem;
+// $form-check-input-gutter:   1.25rem;
+// $form-check-input-margin-y: .25rem;
+// $form-check-input-margin-x: .25rem;
+
+// $form-check-inline-margin-x: .75rem;
+
+// $form-group-margin-bottom:       $spacer-y;
+
+// $input-group-addon-bg:           $gray-lighter;
+// $input-group-addon-border-color: $input-border-color;
+
+// $cursor-disabled:                not-allowed;
+
+// $custom-control-gutter:   1.5rem;
+// $custom-control-spacer-x: 1rem;
+// $custom-control-spacer-y: .25rem;
+
+// $custom-control-indicator-size:       1rem;
+// $custom-control-indicator-margin-y:   (($line-height-base * 1rem) - $custom-control-indicator-size) / -2;
+// $custom-control-indicator-bg:         #ddd;
+// $custom-control-indicator-bg-size:    50% 50%;
+// $custom-control-indicator-box-shadow: inset 0 .25rem .25rem rgba($black,.1);
+
+// $custom-control-disabled-cursor:             $cursor-disabled;
+// $custom-control-disabled-indicator-bg:       $gray-lighter;
+// $custom-control-disabled-description-color:  $gray-light;
+
+// $custom-control-checked-indicator-color:      $white;
+// $custom-control-checked-indicator-bg:         $brand-primary;
+// $custom-control-checked-indicator-box-shadow: none;
+
+// $custom-control-focus-indicator-box-shadow: 0 0 0 1px $body-bg, 0 0 0 3px $brand-primary;
+
+// $custom-control-active-indicator-color:      $white;
+// $custom-control-active-indicator-bg:         lighten($brand-primary, 35%);
+// $custom-control-active-indicator-box-shadow: none;
+
+// $custom-checkbox-radius: $border-radius;
+// $custom-checkbox-checked-icon: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3E%3Cpath fill='#{$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");
+
+// $custom-checkbox-indeterminate-bg: $brand-primary;
+// $custom-checkbox-indeterminate-indicator-color: $custom-control-checked-indicator-color;
+// $custom-checkbox-indeterminate-icon: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 4'%3E%3Cpath stroke='#{$custom-checkbox-indeterminate-indicator-color}' d='M0 2h4'/%3E%3C/svg%3E"), "#", "%23");
+// $custom-checkbox-indeterminate-box-shadow: none;
+
+// $custom-radio-radius: 50%;
+// $custom-radio-checked-icon: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3E%3Ccircle r='3' fill='#{$custom-control-checked-indicator-color}'/%3E%3C/svg%3E"), "#", "%23");
+
+// $custom-select-padding-x:          .75rem ;
+// $custom-select-padding-y:          .375rem;
+// $custom-select-indicator-padding:   1rem; // Extra padding to account for the presence of the background-image based indicator
+// $custom-select-line-height:         $input-line-height;
+// $custom-select-color:               $input-color;
+// $custom-select-disabled-color:      $gray-light;
+// $custom-select-bg:            $white;
+// $custom-select-disabled-bg:   $gray-lighter;
+// $custom-select-bg-size:       8px 10px; // In pixels because image dimensions
+// $custom-select-indicator-color: #333;
+// $custom-select-indicator:     str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3E%3Cpath fill='#{$custom-select-indicator-color}' d='M2 0L0 2h4zm0 5L0 3h4z'/%3E%3C/svg%3E"), "#", "%23");
+// $custom-select-border-width:  $input-btn-border-width;
+// $custom-select-border-color:  $input-border-color;
+// $custom-select-border-radius: $border-radius;
+
+// $custom-select-focus-border-color: lighten($brand-primary, 25%);
+// $custom-select-focus-box-shadow:   inset 0 1px 2px rgba($black, .075), 0 0 5px rgba($custom-select-focus-border-color, .5);
+
+// $custom-select-sm-padding-y:  .2rem;
+// $custom-select-sm-font-size:  75%;
+
+// $custom-file-height:           2.5rem;
+// $custom-file-width:            14rem;
+// $custom-file-focus-box-shadow: 0 0 0 .075rem $white, 0 0 0 .2rem $brand-primary;
+
+// $custom-file-padding-x:     .5rem;
+// $custom-file-padding-y:     1rem;
+// $custom-file-line-height:   1.5;
+// $custom-file-color:         $gray;
+// $custom-file-bg:            $white;
+// $custom-file-border-width:  $border-width;
+// $custom-file-border-color:  $input-border-color;
+// $custom-file-border-radius: $border-radius;
+// $custom-file-box-shadow:    inset 0 .2rem .4rem rgba($black,.05);
+// $custom-file-button-color:  $custom-file-color;
+// $custom-file-button-bg:     $gray-lighter;
+// $custom-file-text: (
+//   placeholder: (
+//     en: "Choose file..."
+//   ),
+//   button-label: (
+//     en: "Browse"
+//   )
+// );
+
+
+// Form validation icons
+// $form-icon-success-color: $brand-success;
+// $form-icon-success: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3E%3Cpath fill='#{$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");
+
+// $form-icon-warning-color: $brand-warning;
+// $form-icon-warning: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3E%3Cpath fill='#{$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");
+
+// $form-icon-danger-color: $brand-danger;
+// $form-icon-danger: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='#{$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");
+
+
+// Dropdowns
+//
+// Dropdown menu container and contents.
+
+// $dropdown-min-width:             10rem;
+// $dropdown-padding-y:             .5rem;
+// $dropdown-margin-top:            .125rem;
+// $dropdown-bg:                    $white;
+// $dropdown-border-color:          rgba($black,.15);
+// $dropdown-border-width:          $border-width;
+// $dropdown-divider-bg:            $gray-lighter;
+// $dropdown-box-shadow:            0 .5rem 1rem rgba($black,.175);
+
+// $dropdown-link-color:            $gray-dark;
+// $dropdown-link-hover-color:      darken($gray-dark, 5%);
+// $dropdown-link-hover-bg:         $gray-lightest;
+
+// $dropdown-link-active-color:     $component-active-color;
+// $dropdown-link-active-bg:        $component-active-bg;
+
+// $dropdown-link-disabled-color:   $gray-light;
+
+// $dropdown-item-padding-x:        1.5rem;
+
+// $dropdown-header-color:          $gray-light;
+
+
+// Z-index master list
+//
+// Warning: Avoid customizing these values. They're used for a bird's eye view
+// of components dependent on the z-axis and are designed to all work together.
+
+// $zindex-dropdown-backdrop:  990;
+// $zindex-navbar:             1000;
+// $zindex-dropdown:           1000;
+// $zindex-fixed:              1030;
+// $zindex-sticky:             1030;
+// $zindex-modal-backdrop:     1040;
+// $zindex-modal:              1050;
+// $zindex-popover:            1060;
+// $zindex-tooltip:            1070;
+
+
+// Navbar
+
+// $navbar-border-radius:              $border-radius;
+// $navbar-padding-x:                  $spacer;
+// $navbar-padding-y:                  ($spacer / 2);
+
+// $navbar-brand-padding-y:            .25rem;
+
+// $navbar-toggler-padding-x:           .75rem;
+// $navbar-toggler-padding-y:           .25rem;
+// $navbar-toggler-font-size:           $font-size-lg;
+// $navbar-toggler-border-radius:       $btn-border-radius;
+
+// $navbar-inverse-color:                 rgba($white,.5);
+// $navbar-inverse-hover-color:           rgba($white,.75);
+// $navbar-inverse-active-color:          rgba($white,1);
+// $navbar-inverse-disabled-color:        rgba($white,.25);
+// $navbar-inverse-toggler-bg: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 32 32' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='#{$navbar-inverse-color}' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 8h24M4 16h24M4 24h24'/%3E%3C/svg%3E"), "#", "%23");
+// $navbar-inverse-toggler-border:        rgba($white,.1);
+
+// $navbar-light-color:                rgba($black,.5);
+// $navbar-light-hover-color:          rgba($black,.7);
+// $navbar-light-active-color:         rgba($black,.9);
+// $navbar-light-disabled-color:       rgba($black,.3);
+// $navbar-light-toggler-bg: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 32 32' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='#{$navbar-light-color}' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 8h24M4 16h24M4 24h24'/%3E%3C/svg%3E"), "#", "%23");
+// $navbar-light-toggler-border:       rgba($black,.1);
+
+// Navs
+
+// $nav-item-margin:               .2rem;
+// $nav-item-inline-spacer:        1rem;
+// $nav-link-padding:              .5em 1em;
+// $nav-link-hover-bg:             $gray-lighter;
+// $nav-disabled-link-color:       $gray-light;
+
+// $nav-tabs-border-color:                       #ddd;
+// $nav-tabs-border-width:                       $border-width;
+// $nav-tabs-border-radius:                      $border-radius;
+// $nav-tabs-link-hover-border-color:            $gray-lighter;
+// $nav-tabs-active-link-hover-color:            $gray;
+// $nav-tabs-active-link-hover-bg:               $body-bg;
+// $nav-tabs-active-link-hover-border-color:     #ddd;
+// $nav-tabs-justified-link-border-color:        #ddd;
+// $nav-tabs-justified-active-link-border-color: $body-bg;
+
+// $nav-pills-border-radius:     $border-radius;
+// $nav-pills-active-link-color: $component-active-color;
+// $nav-pills-active-link-bg:    $component-active-bg;
+
+
+// Pagination
+
+// $pagination-padding-x:                .75rem;
+// $pagination-padding-y:                .5rem;
+// $pagination-padding-x-sm:             .5rem;
+// $pagination-padding-y-sm:             .25rem;
+// $pagination-padding-x-lg:             1.5rem;
+// $pagination-padding-y-lg:             .75rem;
+// $pagination-line-height:              1.25;
+
+// $pagination-color:                     $link-color;
+// $pagination-bg:                        $white;
+// $pagination-border-width:              $border-width;
+// $pagination-border-color:              #ddd;
+
+// $pagination-hover-color:               $link-hover-color;
+// $pagination-hover-bg:                  $gray-lighter;
+// $pagination-hover-border:              #ddd;
+
+// $pagination-active-color:              $white;
+// $pagination-active-bg:                 $brand-primary;
+// $pagination-active-border:             $brand-primary;
+
+// $pagination-disabled-color:            $gray-light;
+// $pagination-disabled-bg:               $white;
+// $pagination-disabled-border:           #ddd;
+
+
+// Jumbotron
+
+// $jumbotron-padding:              2rem;
+// $jumbotron-bg:                   $gray-lighter;
+
+
+// Form states and alerts
+//
+// Define colors for form feedback states and, by default, alerts.
+
+// $state-success-text:             #3c763d;
+// $state-success-bg:               #dff0d8;
+// $state-success-border:           darken($state-success-bg, 5%);
+
+// $state-info-text:                #31708f;
+// $state-info-bg:                  #d9edf7;
+// $state-info-border:              darken($state-info-bg, 7%);
+
+// $state-warning-text:             #8a6d3b;
+// $state-warning-bg:               #fcf8e3;
+// $mark-bg:                        $state-warning-bg;
+// $state-warning-border:           darken($state-warning-bg, 5%);
+
+// $state-danger-text:              #a94442;
+// $state-danger-bg:                #f2dede;
+// $state-danger-border:            darken($state-danger-bg, 5%);
+
+
+// Cards
+
+// $card-spacer-x:            1.25rem;
+// $card-spacer-y:            .75rem;
+// $card-border-width:        1px;
+// $card-border-radius:       $border-radius;
+// $card-border-color:        rgba($black,.125);
+// $card-border-radius-inner: calc(#{$card-border-radius} - #{$card-border-width});
+// $card-cap-bg:              $gray-lightest;
+// $card-bg:                  $white;
+
+// $card-link-hover-color:    $white;
+
+// $card-img-overlay-padding: 1.25rem;
+
+// $card-deck-margin:          ($grid-gutter-width-base / 2);
+
+// $card-columns-count:        3;
+// $card-columns-gap:          1.25rem;
+// $card-columns-margin:       $card-spacer-y;
+
+
+// Tooltips
+
+// $tooltip-max-width:           200px;
+// $tooltip-color:               $white;
+// $tooltip-bg:                  $black;
+// $tooltip-opacity:             .9;
+// $tooltip-padding-y:           3px;
+// $tooltip-padding-x:           8px;
+// $tooltip-margin:              3px;
+
+// $tooltip-arrow-width:         5px;
+// $tooltip-arrow-color:         $tooltip-bg;
+
+
+// Popovers
+
+// $popover-inner-padding:               1px;
+// $popover-bg:                          $white;
+// $popover-max-width:                   276px;
+// $popover-border-width:                $border-width;
+// $popover-border-color:                rgba($black,.2);
+// $popover-box-shadow:                  0 5px 10px rgba($black,.2);
+
+// $popover-title-bg:                    darken($popover-bg, 3%);
+// $popover-title-padding-x:             14px;
+// $popover-title-padding-y:             8px;
+
+// $popover-content-padding-x:           14px;
+// $popover-content-padding-y:           9px;
+
+// $popover-arrow-width:                 10px;
+// $popover-arrow-color:                 $popover-bg;
+
+// $popover-arrow-outer-width:           ($popover-arrow-width + 1px);
+// $popover-arrow-outer-color:           fade-in($popover-border-color, .05);
+
+
+// Badges
+
+// $badge-default-bg:            $gray-light;
+// $badge-primary-bg:            $brand-primary;
+// $badge-success-bg:            $brand-success;
+// $badge-info-bg:               $brand-info;
+// $badge-warning-bg:            $brand-warning;
+// $badge-danger-bg:             $brand-danger;
+
+// $badge-color:                 $white;
+// $badge-link-hover-color:      $white;
+// $badge-font-size:             75%;
+// $badge-font-weight:           $font-weight-bold;
+// $badge-padding-x:             .4em;
+// $badge-padding-y:             .25em;
+
+// $badge-pill-padding-x:        .6em;
+// Use a higher than normal value to ensure completely rounded edges when
+// customizing padding or font-size on labels.
+// $badge-pill-border-radius:    10rem;
+
+
+// Modals
+
+// Padding applied to the modal body
+// $modal-inner-padding:         15px;
+
+// $modal-dialog-margin:         10px;
+// $modal-dialog-sm-up-margin-y: 30px;
+
+// $modal-title-line-height:     $line-height-base;
+
+// $modal-content-bg:               $white;
+// $modal-content-border-color:     rgba($black,.2);
+// $modal-content-border-width:     $border-width;
+// $modal-content-xs-box-shadow:    0 3px 9px rgba($black,.5);
+// $modal-content-sm-up-box-shadow: 0 5px 15px rgba($black,.5);
+
+// $modal-backdrop-bg:           $black;
+// $modal-backdrop-opacity:      .5;
+// $modal-header-border-color:   $gray-lighter;
+// $modal-footer-border-color:   $modal-header-border-color;
+// $modal-header-border-width:   $modal-content-border-width;
+// $modal-footer-border-width:   $modal-header-border-width;
+// $modal-header-padding:        15px;
+
+// $modal-lg:                    800px;
+// $modal-md:                    500px;
+// $modal-sm:                    300px;
+
+// $modal-transition:            transform .3s ease-out;
+
+
+// Alerts
+//
+// Define alert colors, border radius, and padding.
+
+// $alert-padding-x:             1.25rem;
+// $alert-padding-y:             .75rem;
+// $alert-margin-bottom:         $spacer-y;
+// $alert-border-radius:         $border-radius;
+// $alert-link-font-weight:      $font-weight-bold;
+// $alert-border-width:          $border-width;
+
+// $alert-success-bg:            $state-success-bg;
+// $alert-success-text:          $state-success-text;
+// $alert-success-border:        $state-success-border;
+
+// $alert-info-bg:               $state-info-bg;
+// $alert-info-text:             $state-info-text;
+// $alert-info-border:           $state-info-border;
+
+// $alert-warning-bg:            $state-warning-bg;
+// $alert-warning-text:          $state-warning-text;
+// $alert-warning-border:        $state-warning-border;
+
+// $alert-danger-bg:             $state-danger-bg;
+// $alert-danger-text:           $state-danger-text;
+// $alert-danger-border:         $state-danger-border;
+
+
+// Progress bars
+
+// $progress-height:               1rem;
+// $progress-font-size:            .75rem;
+// $progress-bg:                   $gray-lighter;
+// $progress-border-radius:        $border-radius;
+// $progress-box-shadow:           inset 0 .1rem .1rem rgba($black,.1);
+// $progress-bar-color:            $white;
+// $progress-bar-bg:               $brand-primary;
+// $progress-bar-animation-timing: 1s linear infinite;
+
+// List group
+
+// $list-group-color:               $body-color;
+// $list-group-bg:                  $white;
+// $list-group-border-color:        rgba($black,.125);
+// $list-group-border-width:        $border-width;
+// $list-group-border-radius:       $border-radius;
+
+// $list-group-item-padding-x:      1.25rem;
+// $list-group-item-padding-y:      .75rem;
+
+// $list-group-hover-bg:            $gray-lightest;
+// $list-group-active-color:        $component-active-color;
+// $list-group-active-bg:           $component-active-bg;
+// $list-group-active-border:       $list-group-active-bg;
+// $list-group-active-text-color:   lighten($list-group-active-bg, 50%);
+
+// $list-group-disabled-color:      $gray-light;
+// $list-group-disabled-bg:         $list-group-bg;
+// $list-group-disabled-text-color: $list-group-disabled-color;
+
+// $list-group-link-color:          $gray;
+// $list-group-link-heading-color:  $gray-dark;
+// $list-group-link-hover-color:    $list-group-link-color;
+
+// $list-group-link-active-color:   $list-group-color;
+// $list-group-link-active-bg:      $gray-lighter;
+
+
+// Image thumbnails
+
+// $thumbnail-padding:           .25rem;
+// $thumbnail-bg:                $body-bg;
+// $thumbnail-border-width:      $border-width;
+// $thumbnail-border-color:      #ddd;
+// $thumbnail-border-radius:     $border-radius;
+// $thumbnail-box-shadow:        0 1px 2px rgba($black,.075);
+// $thumbnail-transition:        all .2s ease-in-out;
+
+
+// Figures
+
+// $figure-caption-font-size: 90%;
+// $figure-caption-color:     $gray-light;
+
+
+// Breadcrumbs
+
+// $breadcrumb-padding-y:          .75rem;
+// $breadcrumb-padding-x:          1rem;
+// $breadcrumb-item-padding:       .5rem;
+
+// $breadcrumb-bg:                 $gray-lighter;
+// $breadcrumb-divider-color:      $gray-light;
+// $breadcrumb-active-color:       $gray-light;
+// $breadcrumb-divider:            "/";
+
+
+// Carousel
+
+// $carousel-control-color:                      $white;
+// $carousel-control-width:                      15%;
+// $carousel-control-opacity:                    .5;
+
+// $carousel-indicator-width:                    30px;
+// $carousel-indicator-height:                   3px;
+// $carousel-indicator-spacer:                   3px;
+// $carousel-indicator-active-bg:                $white;
+
+// $carousel-caption-width:                      70%;
+// $carousel-caption-color:                      $white;
+
+// $carousel-control-icon-width:                 20px;
+
+// $carousel-control-prev-icon-bg: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='#{$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");
+// $carousel-control-next-icon-bg: str-replace(url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='#{$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");
+
+// $carousel-transition:           transform .6s ease-in-out;
+
+
+// Close
+
+// $close-font-size:             $font-size-base * 1.5;
+// $close-font-weight:           $font-weight-bold;
+// $close-color:                 $black;
+// $close-text-shadow:           0 1px 0 $white;
+
+
+// Code
+
+// $code-font-size:              90%;
+// $code-padding-x:              .4rem;
+// $code-padding-y:              .2rem;
+// $code-color:                  #bd4147;
+// $code-bg:                     $gray-lightest;
+
+// $kbd-color:                   $white;
+// $kbd-bg:                      $gray-dark;
+
+// $pre-bg:                      $gray-lightest;
+// $pre-color:                   $gray-dark;
+// $pre-border-color:            #ccc;
+// $pre-scrollable-max-height:   340px;
diff --git a/stylesheets/styles.scss b/stylesheets/styles.scss
index 9053874..aa435a0 100644
--- a/stylesheets/styles.scss
+++ b/stylesheets/styles.scss
@@ -1,6 +1,15 @@
-// you can change bootstrap variables, see how here:
-//   https://github.com/twbs/bootstrap-rubygem
+// More info at: https://github.com/twbs/bootstrap-rubygem
+
+// Import custom Bootstrap variables
+@import "bootstrap-variables";
+// Import Bootstrap
 @import "bootstrap";
+// or Import Bootstrap Flex
+// @import "bootstrap-flex";
+// or Import Bootstrap Grid
+// @import "bootstrap-grid";
+// or Import Bootstrap Reboot
+// @import "bootstrap-reboot";
 
 .navbar-brand {
   // float: left;