////////////////////////////////
// Constants
////////////////////////////////

$bg_color: #2C2C2C;
$doc_coverage_color: #999;
$code_color: #777;
$code_bg_color: #eee;
$link_color: #0088cc;
$white_color: #fff;
$light_gray_bg_color: #fafafa;
$normal_gray_bg_color: #f2f2f2;
$declaration_bg_color: #f9f9f9;
$declaration_title_language_color: #4b8afb;

$content_wrapper_width: calc(100% - 32px);
$content_wrapper_max_width: 980px;
$article_max_width: 750px;

$mobile_breakpoint: 767px;
$content_top_offset: 87px;
$header_height: 48px;
$breadcrumb_padding: 10px;

$code_font: 'SF Mono', Menlo, monospace;

$gray_border_color: #e2e2e2;
$gray_border: 1px solid $gray_border_color;
$declaration_language_border: 5px solid #cde9f4;

$aside_color: #aaa;
$aside_border: 5px solid lighten($aside_color, 20%);
$aside_warning_color: #ff0000;
$aside_warning_border: 5px solid lighten($aside_warning_color, 20%);

////////////////////////////////
// Reset
////////////////////////////////

html, body, div, span, h1, h3, h4, p, a, code, em, img, ul, li, table, tbody, tr, td {
  background: transparent;
  border: 0;
  margin: 0;
  outline: 0;
  padding: 0;
  vertical-align: baseline;
}

////////////////////////////////
// Global
////////////////////////////////

body {
  background-color: $white_color;
  font-family: -apple-system, Helvetica, freesans, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: subpixel-antialiased;
  word-wrap: break-word;
  min-height: 100vh;
}

// Headers

h1, h2, h3 {
  margin-top: 0.8em;
  margin-bottom: 0.3em;
  font-weight: 400;
  color: black;
}
h1 {
  font-size: 2.5em;
}
h2 {
  font-size: 2em;
  border-bottom: $gray_border;
}
h4 {
  font-size: 13px;
  line-height: 1.5;
  margin-top: 21px;
}
h5 {
  font-size: 1.1em;
}
h6 {
  font-size: 1.1em;
  color: $code_color;
}

@media screen and (max-width: $mobile_breakpoint) {
  h1 { font-size: 1.75em; }
  h2 { font-size: 1.4em; }
}

// Code

pre, code {
  font-family: $code_font;
  font-size: 0.95em;
  color: $code_color;
  word-wrap: normal;
}

pre {
  line-height: 1.6;
}

// Links

a {
  color: $link_color;
  text-decoration: none;
  code {
    color: inherit;
  }
}

// Lists

ul {
  padding-left: 15px;
}
li {
  line-height: 1.8em;
}

// Images

img {
  max-width: 100%;
}

// Blockquotes

blockquote {
  margin-left: 0;
  padding: 0 10px;
  border-left: 4px solid #ccc;
}

// HRs

hr {
  height: 1px;
  border: none;
  background-color: $gray_border_color;
}

// Footnotes

.footnote-ref {
  display: inline-block;
  scroll-margin-top: $content-top-offset;
}

.footnote-def {
  scroll-margin-top: $content-top-offset;
}

// General Content Wrapper

.content-wrapper {
  margin: 0 auto;
  width: $content_wrapper_width;
  max-width: $content_wrapper_max_width;
}


////////////////////////////////
// Content Wrappers
////////////////////////////////

.wrapper {
  display: flex;
  flex-direction: column;
  min-height: inherit;
  overflow: auto;
}

.article-wrapper  > *,
.nav-wrapper  > *,
.footer-wrapper > * {
  margin: 0 auto;
  width: $content_wrapper_width;
  max-width: $content_wrapper_max_width;
}

.article-wrapper {
  flex: 1;
  background-color: $white_color;
}

.nav-wrapper {
  background-color: $light_gray_bg_color;
}

.footer-wrapper {
  background-color: $normal_gray_bg_color;
}

////////////////////////////////
// Header & Top Breadcrumbs
////////////////////////////////

header {
  // font-size: 0.85em;
  line-height: $header_height;
  background-color: $bg_color;
  position: fixed;
  width: 100%;
  z-index: 3;
  img {
    padding-right: 6px;
    vertical-align: -4px;
    height: 16px;
  }
  a {
    color: $white_color;
  }
  p {
    float: left;
    color: $doc_coverage_color;
  }
  .header-right {
    float: right;
    margin-left: 16px;
  }
}

#breadcrumbs-container {
  background-color: $bg_color;
  position: fixed;
  z-index: 2;
  width: 100%;
}

#breadcrumbs {
  color: rgba(255, 255, 255, 0.6);
  height: $content_top_offset - $header_height - $breadcrumb_padding;
  padding-bottom: $breadcrumb_padding;
  width: 100%;
  margin-top: $header_height;
  white-space: nowrap;
  overflow-x: scroll;
  #carat {
    height: 10px;
    margin: 0 5px;
  }
  a {
    color: white;
  }
}

@media screen and (max-width: $mobile_breakpoint) {
  #breadcrumbs {
    color: white;
  }
}

////////////////////////////////
// Navigation
////////////////////////////////

.nav-groups {
  list-style-type: none;
  padding-left: 0;
}

.nav-group-name {
  font-size: 1.5rem;
  font-weight: 500;
  padding: 20px 0;
  &:not(:last-child) {
    border-bottom: $gray_border;
  }
  > a {
    color: #333;
  }
}

.nav-group-tasks {
  column-count: 2;
  list-style: none;
  padding: 0;
  margin-top: 5px;
}

.nav-group-task {
  font-size: 1.1rem;
  font-weight: 400;
  a {
    color: #888;
  }
}

@media screen and (max-width: $mobile_breakpoint) {
  .nav-group-tasks {
    column-count: 1;
  }
}

////////////////////////////////
// Main Content
////////////////////////////////

.main-content {
  overflow: hidden;
  padding-bottom: 60px;
  margin-top: $content_top_offset;
  p, a, code, em, ul, table, blockquote {
    margin-bottom: 1em;
  }
  p {
    line-height: 1.5;
  }
  section {
    max-width: $article_max_width;

    .section:first-child {
      margin-top: 0;
      padding-top: 0;
    }

    .task-group-section .task-group:first-of-type {
      padding-top: 10px;

      .section-name {
        padding-top: 15px;
      }
    }

    .heading:before {
      content: "";
      display: block;
      padding-top: $content_top_offset;
      margin: -$content_top_offset 0 0;
    }
  }

  .section-name {
    p {
       margin-bottom: inherit;
       line-height: inherit;
    }
    code {
      color: inherit;
    }
  }
}

.highlight {
  background-color: $code_bg_color;
  padding: 10px 12px;
  border: $gray_border;
  border-radius: 4px;
  overflow-x: auto;
}

.declaration .highlight {
  overflow-x: initial; // This allows the scrollbar to show up inside declarations
  padding: 0 40px 40px 0;
  margin-bottom: -25px;
  background-color: transparent;
  border: none;
}

.section-name {
  font-size: 1.5rem;
  font-weight: 500;
  margin: 0;
}

.task-group-section {
  margin-top: 10px;
  border-top: $gray_border;
}

.task-group {
  padding-top: 0px;
  > ul {
    padding-left: 0;
  }
}

.task-name-container {
  a[name] {
    &:before {
      content: "";
      display: block;
      padding-top: $content_top_offset;
      margin: -$content_top_offset 0 0;
    }
  }
}

.section-name-container {
  position: relative;
  display: inline-block;

  .section-name-link {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    margin-bottom: 0;
  }

  .section-name {
    position: relative;
    pointer-events: none;
    z-index: 1;
    a {
      pointer-events: auto;
    }
  }
}

.item {
  padding-top: 8px;
  width: 100%;
  list-style-type: none;
  a[name] {
    &:before {
      content: "";
      display: block;
      padding-top: $content_top_offset;
      margin: -$content_top_offset 0 0;
    }
  }
  code {
    background-color: transparent;
    padding: 0;
  }
  .token, .direct-link {
    display: inline-block;
    text-indent: -20px;
    padding-left: 3px;
    margin-left: 55px;
    transition: all 300ms;
  }
  .discouraged {
    text-decoration: line-through;
  }
  .token-open {
    margin-left: 45px;
  }
  .declaration-note {
    font-size: .85em;
    color: rgba(128,128,128,1);
    font-style: italic;
  }
}

.pointer-container {
  left: -23px;
  padding-bottom: 13px;
  position: relative;
  width: 110%;
}

.pointer {
  background: $declaration_bg_color;
  border-left: $gray_border;
  border-top: $gray_border;
  height: 12px;
  left: 21px;
  top: -7px;
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  transform: rotate(45deg);
  position: absolute;
  width: 12px;
}

.height-container {
  display: none;
  position: relative;
  width: 100%;
  overflow: hidden;
  .section {
    position: relative;
    background: $declaration_bg_color;
    width: 100%;
    padding: 10px 25px;
    border: $gray_border;
    border-radius: 8px;
    box-sizing: border-box;
  }
}

.aside, .language {
  padding: 6px 12px;
  margin: 12px 0;
  border-left: $aside_border;
  overflow-y: hidden;
  .aside-title {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    padding-bottom: 0;
    margin: 0;
    color: $aside_color;
    -webkit-user-select: none;
  }
  p:last-child {
    margin-bottom: 0;
  }
}

.language {
  border-left: $declaration_language_border;
  .aside-title {
    color: $declaration_title_language_color;
  }
}

.aside-warning, .aside-deprecated, .aside-unavailable {
  border-left: $aside_warning_border;
  .aside-title {
    color: $aside_warning_color;
  }
}

.graybox {
  border-collapse: collapse;
  width: 100%;
  p {
    margin: 0;
    word-break: break-word;
    min-width: 50px;
  }
  td {
    border: $gray_border;
    padding: 5px 25px 5px 10px;
    vertical-align: middle;
  }
  tr td:first-of-type {
    text-align: right;
    padding: 7px;
    vertical-align: top;
    word-break: normal;
    width: 40px;
  }
}

.slightly-smaller {
  font-size: 0.9em;
}

#footer {
  padding: 25px 0;
  box-sizing: border-box;

  p {
    margin: 0;
    color: #aaa;
    font-size: 0.8em;
  }
}

////////////////////////////////
// Dash
////////////////////////////////

html.dash {
  header, #breadcrumbs {
    display: none;
  }
  .main-content {
    width: $content_wrapper_width;
    max-width: $content_wrapper_max_width;
    margin-left: 0;
    border: none;
    width: 100%;
    top: 0;
    padding-bottom: 0;
  }
  .height-container {
    display: block;
  }
  .item .token {
    margin-left: 0;
  }
  .content-wrapper {
    width: auto;
  }
  #footer {
    position: static;
  }
}

////////////////////////////////
// Responsive design
////////////////////////////////

@media screen and (max-width: $mobile_breakpoint) {
  .no-mobile {
    display: none;
  }
}