/* Dark sidebar theme */
/* :root {
  --sidebar-bg-color: #343131;
  --sidebar-page-link-color-normal: #d9d9d9;
  --sidebar-page-link-bg-color-hover: #4e4a4a;
  --sidebar-page-link-bg-color-active: #2980b9;
  --sidebar-page-link-color-active: #fff;
  --sidebar-footer-title-color: #888;
  --sidebar-footer-link-color: #ddd;
} */

/* Light sidebar theme */
:root {
  --sidebar-bg-color: #ddd;
  --sidebar-page-link-color-normal: #404040;
  --sidebar-page-link-bg-color-hover: #ccc;
  --sidebar-page-link-bg-color-active: #90a5b3;
  --sidebar-page-link-color-active: #fff;
  --sidebar-section-link-bg-color: #f7f7f7;
  --sidebar-section-link-color: #555;
  --sidebar-section-link-bg-color-hover: #f1f1f1;
  --sidebar-footer-bg-color: #ccc;
  --sidebar-footer-title-color: #777;
  --sidebar-footer-link-color: #555;
  --sidebar-footer-link-hover-color: #000;
}

/* https://www.codeinwp.com/snippets/make-div-100-height-of-browser-window/ */
html {
  height: 100%;
}

body {
  display: flex;
  box-sizing: border-box;
  flex-direction: row;
  margin: 0;
  height: 100%;
  flex-grow: 1;
  color: #404040;
  font-family: Roboto;
  font-weight: 400;
  font-size: 16px;
  line-height: 24px;
  overflow: hidden;
}

/*
 * Customizations for RTL languages (e.g. Arabic, Farsi, and Hebrew)
 */

:lang(ar),
:lang(fa),
:lang(he) {
  /*
   * XXX: This is used to force `direction: ltr` for some English-only pages.
   * We use `lt-to-rt` instead of `ltr` because if we use the latter, the
   * `postcss-rtlcss` plugin would change the variable name to `rtl` and we
   * don't want that.
   */
  --ci-force-lt-to-rt: ltr;
}

h1 {
  line-height: 1.1;
}

h2,
h3 {
  line-height: 1;
}

a {
  color: #2980b9;
  text-decoration: none;
}

a:hover {
  color: #3091d1;
}

a:visited {
  color: #2980b9;
}

mark {
  color: inherit;
}

sup {
  position: relative;
  vertical-align: baseline;
  font-size: 90%;
  line-height: 0;
  top: -0.4em;
}

sub {
  position: relative;
  vertical-align: baseline;
  font-size: 80%;
  line-height: 0;
  bottom: -0.25em;
}

[dir="ltr"] ul {
  padding-left: 28px;
}

[dir="rtl"] ul {
  padding-right: 28px;
}

table {
  border-collapse: collapse;
  font-size: 90%;
}

table,
th,
td {
  border: 1px solid #e1e4e5;
}

th,
td {
  padding: 8px 10px;
}

tbody tr:nth-child(odd) {
  background: #f3f3f3;
}

hr {
  display: block;
  height: 1px;
  border: 0;
  background-color: #e1e4e5;
  margin: 24px 0;
  padding: 0;
}

details summary {
  cursor: pointer;
}

/*
 * Heading links
 */

h1 .heading-link,
h2 .heading-link,
h3 .heading-link,
h4 .heading-link {
  visibility: hidden;
}

h1:hover .heading-link,
h2:hover .heading-link,
h3:hover .heading-link,
h4:hover .heading-link {
  visibility: visible;
}

[dir="ltr"] .heading-link {
  margin-left: 4px;
}

[dir="rtl"] .heading-link {
  margin-right: 4px;
}

/*
 * Glossary tooltips
 */

.glossary-link {
  position: relative;
  display: inline;
  color: unset;
  text-decoration: underline;
  text-decoration-style: dashed;
  text-underline-offset: 0.2em;
}

.glossary-link:hover,
.glossary-link:visited {
  color: unset;
}

.glossary-link .tooltip {
  visibility: hidden;
  position: absolute;
  display: inline-table;
  z-index: 100;
  width: max-content;
  min-width: 50px;
  max-width: 280px;
  top: 150%;
  padding: 10px;
  border-radius: 6px;
  background-color: black;
  color: #fff;
  font-weight: 400;
}

[dir="ltr"] .glossary-link .tooltip {
  left: 50%;
  transform: translateX(-50%);
  text-align: left;
}

[dir="rtl"] .glossary-link .tooltip {
  right: 50%;
  transform: translateX(50%);
  text-align: right;
}

.glossary-link .tooltip-arrow {
  position: absolute;
  bottom: 100%;
  border-width: 5px;
  border-style: solid;
  border-color: transparent transparent black transparent;
}

[dir="ltr"] .glossary-link .tooltip-arrow {
  left: 50%;
  margin-left: -5px;
}

[dir="rtl"] .glossary-link .tooltip-arrow {
  right: 50%;
  margin-right: -5px;
}

.glossary-link:hover .tooltip {
  visibility: visible;
}

/*
 * Sidebar
 */

.sidebar {
  display: flex;
  flex-direction: column;
  width: 300px;
  height: 100%;
  min-height: 100%;
  margin: 0;
  padding: 0;
  background-color: var(--sidebar-bg-color);
}

.sidebar-scroll-container {
  padding-bottom: 16px;
  height: 100%;
  overflow-y: auto;
}

.sidebar-logo-container {
  display: flex;
  padding: 20px 0;
  align-items: center;
  justify-content: center;
}

.sidebar-logo {
  width: 230px;
}

.sidebar-search-container {
  display: flex;
  margin: 4px 16px 30px 16px;
}

.sidebar-search-input-container {
  display: flex;
  position: relative;
  width: 100%;
}

.sidebar-search-input-container input {
  width: 100%;
  box-sizing: border-box;
  border-radius: 10px;
  border: 1px solid #999;
  font-size: 14px;
}

[dir="ltr"] .sidebar-search-input-container input {
  padding: 6px 30px 6px 12px;
}

[dir="rtl"] .sidebar-search-input-container input {
  padding: 6px 12px 6px 30px;
}

/*
 * XXX: On iPhone and other mobile devices, prevent browser from zooming in on the page
 * when the user focuses the search field.  (The browser won't zoom if the font size is
 * at least 16px.)
 */
@media only screen and (min-device-width: 320px) and (max-device-width: 480px) {
  .sidebar-search-input-container input {
    font-size: 16px;
  }
}

/*
 * Hide the clear search (X) button that Safari includes by default on iOS and macOS
 * since we provide our own custom one that works on all browsers.
 */
input[type='search']::-webkit-search-cancel-button {
  -webkit-appearance: none;
}

.sidebar-search-input-container input:placeholder-shown + button {
  width: 100%;
  opacity: 0;
  pointer-events: none;
}

.sidebar-search-input-container button {
  position: absolute;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  line-height: 18px;
  height: 18px;
  font-size: 14px;
  border-radius: 50%;
  top: 0;
  bottom: 0;
  margin: auto;
  background: #ccc;
  color: #fff;
  padding: 0 0 2px 0;
  outline: none;
  cursor: pointer;
}

[dir="ltr"] .sidebar-search-input-container button {
  right: 8px;
}

[dir="rtl"] .sidebar-search-input-container button {
  left: 8px;
}

.sidebar-page-links a {
  display: block;
  color: var(--sidebar-page-link-color-normal);
  padding: 7px 16px;
  text-decoration: none;
  font-size: 14px;
  line-height: 16px;
}

.sidebar-page-links .separator {
  background-color: #ccc;
  margin: 10px 16px;
}

.sidebar-page-links a:hover {
  background-color: var(--sidebar-page-link-bg-color-hover);
}

.sidebar-page-links a:active {
  background-color: var(--sidebar-page-link-bg-color-active);
  color: var(--sidebar-page-link-color-active);
}

.sidebar-page-links a.current {
  background-color: #fff;
  font-weight: 700;
}

.sidebar-page-links a.current:active {
  background-color: var(--sidebar-page-link-bg-color-active);
  color: var(--sidebar-page-link-color-active);
}

.sidebar-page-links a.section {
  display: flex;
  flex-direction: row;
  background-color: var(--sidebar-section-link-bg-color);
  color: var(--sidebar-section-link-color);
}

[dir="ltr"] .sidebar-page-links a.section {
  padding-left: 20px;
}

[dir="rtl"] .sidebar-page-links a.section {
  padding-right: 20px;
}

[dir="ltr"] .sidebar-page-links a.section-level-3 {
  padding-left: 44px;
}

[dir="rtl"] .sidebar-page-links a.section-level-3 {
  padding-right: 44px;
}

[dir="ltr"] .sidebar-page-links a.section .bullet {
  margin-right: 4px;
}

[dir="rtl"] .sidebar-page-links a.section .bullet {
  margin-left: 4px;
}

.sidebar-page-links a.section:hover {
  background-color: var(--sidebar-section-link-bg-color-hover);
}

.sidebar-page-links a.section:active {
  background-color: var(--sidebar-page-link-bg-color-active);
  color: var(--sidebar-page-link-color-active);
}

.sidebar-footer {
  display: flex;
  flex-direction: column;
  padding: 12px 16px 12px 16px;
  background-color: var(--sidebar-footer-bg-color);
  font-size: 90%;
  box-shadow: 0 0 8px 0 rgba(0, 0, 0, 0.5);
  clip-path: inset(-8px 0 0 0);
}

.sidebar-footer-row {
  display: flex;
  flex-direction: row;
}

.sidebar-footer-title {
  font-size: 0.9em;
  color: var(--sidebar-footer-title-color);
}

[dir="ltr"] .sidebar-footer-title {
  padding-right: 8px;
}

[dir="rtl"] .sidebar-footer-title {
  padding-left: 8px;
}

.sidebar-footer a {
  color: var(--sidebar-footer-link-color);
}

[dir="ltr"] .sidebar-footer a {
  padding-right: 8px;
}

[dir="rtl"] .sidebar-footer a {
  padding-left: 8px;
}

.sidebar-footer a:hover {
  color: var(--sidebar-footer-link-hover-color);
}

.sidebar-footer a.current {
  font-weight: 700;
}

/*
 * Content
 */

.content-container {
  display: flex;
  flex: 1;
  flex-direction: column;
  height: 100%;
  min-height: 100%;
  overflow: hidden;
}

.spacer-flex {
  flex: 1;
}

.content-nav-header {
  display: none;
  flex-direction: row;
  height: 40px;
  align-items: center;
  background-color: #004992;
}

.content-nav-menu-icon {
  margin-left: 12px;
  margin-right: 12px;
  cursor: pointer;
}

.content-nav-menu-icon div {
  width: 24px;
  height: 4px;
  margin: 4px 0;
  background-color: #fff;
  border-radius: 1px;
}

.content-nav-header a {
  color: #fff;
  font-weight: 700;
}

.content-nav-header-spacer {
  width: 48px;
}

.content-inner-container {
  flex: 1;
  padding: 10px 30px 0 30px;
  overflow-x: hidden;
  overflow-y: auto;
}

.content {
  flex: 1;
  min-width: 0;
  max-width: 900px;
}

.content .table-container {
  max-width: 100%;
  overflow-x: auto;
}

/* Keep embedded videos constrained to the page width on small screens */
.content iframe {
  max-width: 100%;
}

.search-results-container {
  display: none;
  font-size: 85%;
  line-height: 1.3;
}

/*
 * Pagination controls
 */

.pagination-controls {
  display: flex;
  flex-direction: row;
  height: 70px;
  margin: 50px 0 80px 0;
}

.pagination-link {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 40%;
  max-width: 300px;
  padding: 0 12px;
  border: 1px solid #ccc;
  border-radius: 6px;
  line-height: 1.3;
}

.pagination-link:hover {
  border-color: #2980b9;
}

.pagination-link.pagination-next {
  align-items: flex-end;
}

[dir="ltr"] .pagination-link.pagination-next {
  text-align: right;
}

[dir="rtl"] .pagination-link.pagination-next {
  text-align: left;
}

.pagination-link .pagination-sublabel {
  font-size: 0.8em;
  color: #777;
}

.pagination-link .pagination-label-row {
  display: inline-flex;
}

.pagination-link .pagination-label {
  display: block;
  font-weight: 700;
}

.pagination-link.pagination-prev .pagination-label-row::before {
  content: '« ';
  position: relative;
  top: -2px;
}

[dir="ltr"] .pagination-link.pagination-prev .pagination-label-row::before {
  margin-right: 4px;
}

[dir="rtl"] .pagination-link.pagination-prev .pagination-label-row::before {
  margin-left: 4px;
}

.pagination-link.pagination-next .pagination-label-row::after {
  content: ' »';
  position: relative;
  top: -2px;
}

[dir="ltr"] .pagination-link.pagination-next .pagination-label-row::after {
  margin-left: 4px;
}

[dir="rtl"] .pagination-link.pagination-next .pagination-label-row::after {
  margin-right: 4px;
}

/*
 * Footer
 */

footer {
  max-width: 900px;
  /* Force LTR for the English-only Creative Commons footer text */
  direction: var(--ci-force-lt-to-rt);
}

.licensing {
  display: flex;
  flex-direction: row;
  align-items: center;
  margin-bottom: 20px;
  color: #808080;
}

.licensing img {
  width: 40px;
  height: 40px;
  margin-right: 4px;
}

.licensing p {
  margin: 0;
  padding-left: 4px;
  font-size: 0.8em;
  line-height: 1.3;
}

/*
 * Print-optimized layout
 */

.content-container.complete {
  padding: 0 30px;
  font-size: 13px;
  line-height: 18px;
}

/*
 * XXX: Make all images display as block except for the icons in headings;
 * this is needed to prevent page breaks within images.
 */
.content.complete img {
  display: block;
}

.content.complete h1 > img {
  display: inline;
}

@media print {
  div,
  img,
  p {
    page-break-inside: avoid;
  }

  /*
   * XXX: Prevent page breaks right after a heading.  Based on:
   *   https://stackoverflow.com/a/53742871
   */
  h1,
  h2,
  h3,
  h4 {
    page-break-inside: avoid;
  }

  /*
   * XXX: Note that we exclude h1 here, because we sometimes use
   * flexbox for h1 in project.css and this will conflict.  This
   * probably isn't a problem since h1 headings are likely to only
   * be used at the top of a page where wrapping isn't an issue.
   */
  h2::after,
  h3::after,
  h4::after {
    content: '';
    display: block;
    width: 1px;
    height: 150px;
    margin-bottom: -150px;
  }

  .page-break {
    page-break-before: always;
  }

  hr {
    margin: 0;
  }
}

/*
 * Mobile-optimized layout
 */

@media screen and (max-width: 700px) {
  .sidebar {
    display: none;
  }

  .responsive-sidebar-visible .sidebar {
    display: flex;
  }

  .content-nav-header {
    display: flex;
  }

  .responsive-sidebar-visible .content-container {
    position: fixed;
    width: 100%;
  }

  .responsive-sidebar-visible[dir='ltr'] .content-container {
    left: 300px;
  }

  .responsive-sidebar-visible[dir='rtl'] .content-container {
    right: 300px;
  }

  .content-inner-container {
    margin-top: 0;
    padding: 0 20px;
  }

  .responsive-sidebar-visible .heading-link {
    display: none;
  }
}