/* CSS for UI elements (a.k.a. chrome) */

@import "variables.css";

html {
  background-color: var(--bg);
  scrollbar-color: var(--scrollbar) var(--bg);
}
#searchresults a,
.content a:link,
a:visited,
a > .hljs {
  color: var(--links);
}

.icon-logo-img {
  display: block;
}

.icon-button {
  position: relative;
  height: 28px;
  width: 28px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color 0.5s;
  border: 0;
  background-color: transparent;
  border-radius: 4px;
  color: var(--icons);
}

.icon-button:hover {
  color: var(--icons-hover);
  background-color: var(--icon-btn-bg-hover);
}

.ib-hidden-desktop {
  display: none;
}

.header-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 12px 16px;
  background-color: var(--sidebar-bg);
  border-bottom: 1px solid var(--divider);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.header-bar .left-container {
  width: 160px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-bar .right-container {
  width: 160px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.logo-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  filter: var(--logo-brightness);
}

.nav-chapters {
  font-size: 2.5em;
  text-align: center;
  text-decoration: none;

  position: fixed;
  top: 0;
  bottom: 0;
  margin: 0;
  max-width: 150px;
  min-width: 90px;

  display: flex;
  justify-content: center;
  align-content: center;
  flex-direction: column;

  transition:
    color 0.5s,
    background-color 0.5s;
}

.nav-chapters:hover {
  text-decoration: none;
  background-color: var(--theme-hover);
  transition:
    background-color 0.15s,
    color 0.15s;
}

.nav-wrapper {
  margin-block-start: 50px;
  display: none;
}

.footer-buttons {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 24px 0;
}

.footer-button {
  width: 100%;
  padding: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--footer-btn-bg);
  border: 1px solid var(--footer-btn-border);
  border-radius: 0.5rem;
  font-size: 0.9em;
}

.footer-button:hover {
  background-color: var(--footer-btn-bg-hover);
  border-color: var(--footer-btn-border-hover);
}

.footer-button i {
  text-decoration: underline !important;
  text-decoration-color: transparent !important;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 24px 0;
  border-top: 1px dashed var(--border-footer);
}

.footer-link {
  font-size: 1.25rem;
  color: var(--links);
  text-decoration: underline;
  text-decoration-color: var(--link-line-decoration);
  text-wrap-mode: nowrap;

  :hover {
    text-decoration-color: var(--link-line-decoration-hover);
  }
}

.footer-separator {
  color: var(--border-light);
  font-size: 0.8em;
}

.footer-logo {
  height: 16px;
  border-radius: 0 !important;
  border: none !important;
  background: transparent !important;
}

.mobile-nav-chapters {
  font-size: 2.5em;
  text-align: center;
  text-decoration: none;
  width: 90px;
  border-radius: 5px;
  background-color: var(--sidebar-bg);
}

/* Only Firefox supports flow-relative values */
.previous {
  float: left;
}
[dir="rtl"] .previous {
  float: right;
}

/* Only Firefox supports flow-relative values */
.next {
  float: right;
  right: var(--page-padding);
}
[dir="rtl"] .next {
  float: left;
  right: unset;
  left: var(--page-padding);
}

/* Use the correct buttons for RTL layouts*/
[dir="rtl"] .previous i.fa-angle-left:before {
  content: "\f105";
}
[dir="rtl"] .next i.fa-angle-right:before {
  content: "\f104";
}

@media only screen and (max-width: 1080px) {
  .nav-wide-wrapper {
    display: none;
  }
  .nav-wrapper {
    display: block;
  }
}

/* sidebar-visible */
@media only screen and (max-width: 1380px) {
  #sidebar-toggle-anchor:checked ~ .page-wrapper .nav-wide-wrapper {
    display: none;
  }
  #sidebar-toggle-anchor:checked ~ .page-wrapper .nav-wrapper {
    display: block;
  }
}

/* Inline code */

:not(pre) > .hljs {
  display: inline;
  padding: 0.1em 0.3em;
  border-radius: 3px;
}

:not(pre):not(a) > .hljs {
  color: var(--inline-code-color);
  overflow-x: initial;
}

a:hover > .hljs {
  text-decoration: underline;
}

pre {
  background-color: var(--pre-bg);
  border: 1px solid;
  border-color: var(--pre-border);
  box-shadow: var(--pre-shadow) 4px 4px 0px 0px;
  position: relative;
}
pre > .hljs {
  background-color: initial;
}
pre > .buttons {
  position: absolute;
  z-index: 100;
  right: 0px;
  top: 2px;
  margin: 0px;
  padding: 2px 0px;

  color: var(--sidebar-fg);
  cursor: pointer;
  visibility: hidden;
  opacity: 0;
  transition:
    visibility 0.1s linear,
    opacity 0.1s linear;
}
pre:hover > .buttons {
  visibility: visible;
  opacity: 1;
}
pre > .buttons :hover {
  color: var(--sidebar-active);
  border-color: var(--border-hover);
  background-color: var(--theme-hover);
}
pre > .buttons i {
  margin-inline-start: 8px;
}
pre > .buttons button {
  cursor: inherit;
  margin: 0 4px;
  height: 26px;
  width: 26px;
  font-size: 14px;
  border-style: solid;
  border-width: 1px;
  border-radius: 4px;
  border-color: var(--border);
  background-color: var(--popover-bg);
  transition: 100ms;
  transition-property: color, border-color, background-color;
  color: var(--icons);
}

pre > .playground {
  border: none;
  margin: 0;
  box-shadow: none;
  /* HACK: This serves to visually hide nested <pre> elements in "playground" code snippets.
  A more robust solution would involve modifying the rendered HTML. */
}

@media (pointer: coarse) {
  pre > .buttons button {
    /* On mobile, make it easier to tap buttons. */
    padding: 0.3rem 1rem;
  }

  .sidebar-resize-indicator {
    /* Hide resize indicator on devices with limited accuracy */
    display: none;
  }
}
pre > code {
  display: block;
  padding: 1rem;
}

/* TODO: ACE editors overlap their buttons because ACE does absolute
   positioning within the code block which breaks padding. The only solution I
   can think of is to move the padding to the outer pre tag (or insert a div
   wrapper), but that would require fixing a whole bunch of CSS rules.
*/
.hljs.ace_editor {
  padding: 0rem 0rem;
}

pre > .result {
  margin-block-start: 10px;
}

/* Search */

#searchresults a {
  text-decoration: none;
}

mark {
  border-radius: 2px;
  padding-block-start: 0;
  padding-block-end: 1px;
  padding-inline-start: 3px;
  padding-inline-end: 3px;
  margin-block-start: 0;
  margin-block-end: -1px;
  margin-inline-start: -3px;
  margin-inline-end: -3px;
  background-color: var(--search-mark-bg);
  transition: background-color 300ms linear;
  cursor: pointer;
}

mark.fade-out {
  background-color: rgba(0, 0, 0, 0) !important;
  cursor: auto;
}

.searchbar-outer {
  margin-inline-start: auto;
  margin-inline-end: auto;
  width: 100%;
  max-width: var(--content-max-width);
  box-sizing: border-box;
  padding: 16px;
}

#searchbar {
  width: 100%;
  margin-block-start: 5px;
  margin-block-end: 0;
  margin-inline-start: auto;
  margin-inline-end: auto;
  padding: 10px 16px;
  transition: box-shadow 300ms ease-in-out;
  border: 1px solid var(--searchbar-border-color);
  border-radius: 3px;
  background-color: var(--searchbar-bg);
  color: var(--searchbar-fg);
}
#searchbar:focus,
#searchbar.active {
  box-shadow: 0 0 3px var(--searchbar-shadow-color);
  outline: none;
  border-color: var(--search-mark-bg);
}

.searchresults-header {
  font-weight: bold;
  font-size: 1em;
  padding-block-start: 0;
  padding-block-end: 0;
  color: var(--searchresults-header-fg);
}

ul#searchresults {
  list-style: none;
  padding-inline-start: 0;
  margin-block-end: 0;
}
ul#searchresults li {
  margin: 10px 0px;
  padding: 2px;
  border-radius: 2px;
  scroll-margin-block-end: 10px;
}
ul#searchresults li.focus {
  background-color: var(--searchresults-li-bg);
}
ul#searchresults span.teaser {
  display: block;
  font-size: 0.8em;
  margin-block-start: 5px;
  margin-inline-start: 4px;
  padding-inline-start: 2ch;
  border-left: 1px solid var(--divider);
}
ul#searchresults span.teaser em {
  font-weight: bold;
  color: var(--full-contrast);
  background: var(--code-bg);
}

/* Sidebar */

.sidebar {
  position: relative;
  width: var(--sidebar-width);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  font-size: 0.875em;
  box-sizing: border-box;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: none;
  overflow: hidden;
  background-color: var(--sidebar-bg);
  color: var(--sidebar-fg);
  border-right: 1px solid var(--divider);
}

[dir="rtl"] .sidebar {
  left: unset;
  right: 0;
}
.sidebar-resizing {
  -moz-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
.no-js .sidebar,
.js:not(.sidebar-resizing) .sidebar {
  transition: transform 0.3s; /* Animation: slide away */
}
.sidebar code {
  line-height: 2em;
}
.sidebar .sidebar-scrollbox {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

.sidebar .sidebar-resize-handle {
  position: absolute;
  cursor: col-resize;
  width: 0;
  right: calc(var(--sidebar-resize-indicator-width) * -1);
  top: 0;
  bottom: 0;
  display: flex;
  align-items: center;
}

.sidebar-resize-handle .sidebar-resize-indicator {
  width: 100%;
  height: 12px;
  background-color: var(--icons);
  margin-inline-start: var(--sidebar-resize-indicator-space);
}

[dir="rtl"] .sidebar .sidebar-resize-handle {
  left: calc(var(--sidebar-resize-indicator-width) * -1);
  right: unset;
}
.js .sidebar .sidebar-resize-handle {
  cursor: col-resize;
  width: calc(
    var(--sidebar-resize-indicator-width) -
      var(--sidebar-resize-indicator-space)
  );
}
.sidebar::-webkit-scrollbar {
  background: var(--sidebar-bg);
}
.sidebar::-webkit-scrollbar-thumb {
  background: var(--scrollbar);
}

@media only screen and (max-width: 780px) {
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    padding-top: 57px; /* Account for header height */
    transform: translateX(-100%);
    z-index: 99;
    transition: transform 0.1s ease;
  }

  [dir="rtl"] .sidebar {
    left: unset;
    right: 0;
    transform: translateX(100%);
  }

  body.sidebar-open .sidebar {
    box-shadow: var(--sidebar-mobile-shadow);
    transform: translateX(0);
  }
}

.chapter {
  list-style: none outside none;
  padding: 16px;
  padding-top: 8px;
  line-height: 2.2em;
  margin: 0;
}

.chapter ol {
  width: 100%;
}

.chapter li {
  display: flex;
  color: var(--sidebar-non-existant);
}

.chapter li a {
  display: block;
  padding: 0 4px;
  text-decoration: none;
  color: var(--sidebar-fg);
}

.chapter li a:hover {
  color: var(--sidebar-active);
}

.chapter li a.active {
  color: var(--sidebar-active);
  background-color: var(--sidebar-active-bg);
}

.chapter li > a.toggle {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-inline-start: auto;
  user-select: none;
  opacity: 0.5;
  border-radius: 4px;
  transition:
    opacity 0.15s ease,
    background-color 0.15s ease;
}

.chapter li > a.toggle:hover {
  opacity: 1;
  background-color: var(--theme-hover);
}

.chapter li.chapter-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  line-height: 1.5em;
  margin-block-start: 0.6em;
}

.section li.chapter-item {
  margin-block-start: 0;
}

.chapter li.part-title + li.chapter-item {
  margin-block-start: 0.2em;
}

.chapter li.chapter-item > a:first-child {
  flex: 1;
  min-width: 0;
}

.chapter li.expanded > a.toggle div {
  transform: rotate(90deg);
}

.chapter li.part-title {
  font-size: 1.4rem;
  padding: 0 8px 0 4px;
  color: var(--title-color);
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  line-height: auto;
  border-radius: 2px;
}

.chapter li.part-title.collapsible:hover {
  background-color: var(--hover-section-title);
}

.chapter li.part-title.collapsible::after {
  content: "❯";
  display: inline-block;
  font-size: 1rem;
  opacity: 0.6;
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.chapter li.part-title.collapsible.expanded::after {
  transform: rotate(90deg);
}

.chapter li.section-spacer {
  height: 1.5rem;
  list-style: none;
}

.chapter li.section-hidden {
  display: none !important;
}

.section {
  list-style: none outside none;
  padding-inline-start: 1.5ch;
  margin-inline-start: 1ch;
  margin-top: 6px;
  border-left: 1px solid var(--border-light);
  line-height: 1.9em;
  display: flex;
  flex-direction: column;
  gap: 0.6em;
}

.theme-popup {
  position: absolute;
  right: 155px;
  top: calc(var(--menu-bar-height) - 18px);
  z-index: 1000;
  border-radius: 4px;
  font-size: 1.4rem;
  color: var(--fg);
  background: var(--popover-bg);
  border: 1px solid var(--popover-border);
  margin: 0;
  padding: 0;
  list-style: none;
  display: none;
  overflow: hidden;
}

[dir="rtl"] .theme-popup {
  left: unset;
  right: 10px;
}
.theme-popup .default {
  color: var(--icons);
}
.theme-popup .theme {
  width: 100%;
  border: 0;
  margin: 0;
  padding: 2px 24px;
  line-height: 25px;
  white-space: nowrap;
  text-align: start;
  cursor: pointer;
  color: inherit;
  background: inherit;
  font-size: inherit;
  font-family: inherit;
}
.theme-popup .theme:hover {
  background-color: var(--theme-hover);
}

.theme-selected::before {
  font-family: Arial, Helvetica, sans-serif;
  text-align: center;
  display: inline-block;
  content: "✓";
  margin-inline-start: -20px;
  width: 20px;
}

.download-button {
  max-height: 28px;
  margin-left: 8px;
  background: var(--download-btn-bg);
  color: var(--download-btn-color);
  padding: 4px 8px;
  border: 1px solid;
  border-color: var(--download-btn-border);
  font-size: 1.4rem;
  border-radius: 4px;
  box-shadow: var(--download-btn-shadow) 0px -2px 0px 0px inset;
  text-decoration: none;
  transition: 100ms;
  transition-property: box-shadow, border-color, background-color;
}

.download-button:hover {
  background: var(--download-btn-bg);
  border-color: var(--download-btn-border-hover);
  box-shadow: none;
}

.search-button {
  min-width: 100px;
  max-width: 300px;
  height: 28px;
  width: 100%;
  padding: 4px 4px 4px 8px;
  display: flex;
  gap: 8px;
  background: var(--search-btn-bg);
  border: 1px solid;
  border-color: var(--search-btn-border);
  font-size: 1.4rem;
  font-family: var(--font);
  color: var(--icons);
  border-radius: 4px;
  transition: 100ms;
  transition-property: box-shadow, border-color, background-color;
}

.search-button:hover {
  background: var(--search-btn-bg-hover);
}

.search-button .icon {
  width: 12px;
  height: 12px;
  transform: translateY(10%);
  scale: 0.9;
}

.search-content-desktop {
  width: 100%;
  display: flex;
  justify-content: space-between;
}

.search-content-mobile {
  display: none;
}

.search-container {
  box-sizing: border-box;
  position: fixed;
  inset: 0;
  z-index: 1000;
  padding: 24px;
  padding-top: 72px;
  background-color: rgba(0, 0, 0, 0.5);
  display: none;
  justify-content: center;
}

.search-container:has(#search-wrapper:not(.hidden)) {
  display: flex;
}

.search-modal {
  box-sizing: border-box;

  max-width: 600px;
  min-width: 600px;
  height: fit-content;
  max-height: 600px;
  display: flex;
  flex-direction: column;
  overflow-y: hidden;

  border-radius: 8px;
  background: var(--popover-bg);
  border: 1px solid var(--popover-border);
  box-shadow: var(--popover-shadow);
}

.searchresults-outer {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0px 22px 22px 22px;
}

#searchbar {
  margin: 0;
}

@media only screen and (max-width: 780px) {
  .header-bar {
    padding: 16px;
    justify-content: start;
  }

  .download-button {
    display: none;
  }

  .ib-hidden-mobile {
    display: none;
  }

  .header-bar .left-container {
    width: fit-content;
  }

  .header-bar .right-container {
    width: fit-content;
  }

  .search-button {
    width: 100px;
    margin-left: auto;
    margin-right: 8px;
  }

  .ib-hidden-desktop {
    display: block;
  }

  .search-modal {
    width: 90vw;
    min-width: auto;
  }

  .search-content-desktop {
    display: none;
  }

  .search-content-mobile {
    display: flex;
  }

  .theme-popup {
    right: 15px;
  }
}
