:root {
  --background: #ebf4ff;
  --border: #d7eaff;
  --blockquote-background: #f1f8ff;
  --button-background: #fff;
  --button-hover-background: #eef5fc;
  --code-background: #f5f7f9;
  --content-width: 760px;
  --foreground: #212121;
  --foreground-muted: #616161;
  --image-border: #c8c8c8;
  --link: #0070e0;
  --navigation-current-background: #e6f2ff;
  --navigation-current-foreground: var(--link);
  --sidebar-background: #fff;
  --sidebar-width: 300px;
  --table-border: #ddd;
  --table-heading-background: #f2f2f2;
  --toc-link: var(--link);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #111;
    --border: #454545;
    --blockquote-background: #1c252d;
    --button-background: #292929;
    --button-hover-background: #363636;
    --code-background: #202020;
    --foreground: #eee;
    --foreground-muted: #aaa;
    --image-border: #555;
    --link: #79b8ff;
    --navigation-current-background: transparent;
    --navigation-current-foreground: #f4c63d;
    --sidebar-background: #242424;
    --table-border: #555;
    --table-heading-background: #292929;
    --toc-link: var(--foreground);
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

html {
  color: var(--foreground);
  font-family: "Roboto", sans-serif;
  scroll-behavior: smooth;
}

body {
  background: var(--background);
  font-size: 18px;
  line-height: 1.5;
  margin: 0;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.sidebar {
  background: var(--sidebar-background);
  border-right: 1px solid var(--border);
  bottom: 0;
  left: 0;
  overflow-y: auto;
  padding: 18px 22px 40px;
  position: fixed;
  top: 0;
  width: var(--sidebar-width);
  z-index: 20;
}

.sidebar,
.page-toc,
.page-navigation {
  font-size: 16px;
}

.sidebar-logo {
  display: block;
  margin-bottom: 22px;
}

.sidebar-logo img {
  display: block;
  max-width: 170px;
}

.sidebar h2 {
  color: var(--foreground-muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  margin: 28px 0 8px;
  text-transform: uppercase;
}

.sidebar ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar li {
  margin: 2px 0;
}

.sidebar li ul {
  border-left: 1px solid var(--border);
  margin: 4px 0 8px 7px;
  padding-left: 12px;
}

.sidebar a {
  border-radius: 4px;
  color: var(--foreground);
  display: block;
  padding: 4px 6px;
}

.sidebar a.current {
  background: var(--navigation-current-background);
  color: var(--navigation-current-foreground);
  font-weight: 500;
}

.sidebar details > summary {
  align-items: center;
  cursor: pointer;
  display: flex;
  gap: 4px;
  list-style: none;
}

.sidebar details > summary::-webkit-details-marker {
  display: none;
}

.sidebar details > summary::before {
  color: var(--foreground-muted);
  content: "▶";
  flex: 0 0 14px;
  font-size: 12px;
}

.sidebar details[open] > summary::before {
  content: "▼";
}

.sidebar details > summary a {
  flex: 1;
  min-width: 0;
}

.page {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  padding: 28px 28px 48px;
}

.content-grid {
  align-items: start;
  display: grid;
  gap: 36px;
  grid-template-columns: minmax(0, var(--content-width)) 200px;
  justify-content: center;
  margin: 0 auto;
  max-width: 1040px;
}

main {
  min-width: 0;
  overflow-wrap: break-word;
  padding: 34px 42px 48px;
  width: 100%;
}

main h1 {
  font-size: 2.15rem;
  line-height: 1.2;
  margin-top: 0;
}

main h2,
main h3,
main h4 {
  line-height: 1.3;
  margin-top: 2em;
}

.heading-anchor,
.heading-anchor:visited {
  color: var(--foreground);
}

main img,
main video,
.iframe-container {
  display: block;
  height: auto;
  margin: 24px auto;
  max-width: 100%;
  width: 100%;
}

main img {
  border: 1px solid var(--image-border);
}

main iframe {
  max-width: 100%;
}

.iframe-container {
  aspect-ratio: 16 / 9;
}

.iframe-container iframe {
  height: 100%;
  width: 100%;
}

code {
  font-family: "Roboto Mono", monospace;
  font-size: 0.9em;
}

pre {
  background: var(--code-background);
  border-radius: 6px;
  overflow-wrap: anywhere;
  padding: 44px 16px 16px;
  white-space: pre-wrap;
}

pre code {
  white-space: inherit;
}

.code-block {
  position: relative;
}

.code-copy-button {
  background: var(--button-background);
  border: 1px solid var(--image-border);
  border-radius: 4px;
  color: var(--foreground);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  line-height: 1.4;
  padding: 4px 9px;
  position: absolute;
  right: 8px;
  top: 8px;
}

.code-copy-button:hover {
  background: var(--button-hover-background);
}

.code-copy-button:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 2px;
}

blockquote {
  background: var(--blockquote-background);
  border-left: 4px solid var(--border);
  margin: 20px 0;
  padding: 4px 20px;
}

.table-wrapper {
  overflow-x: auto;
}

table {
  border-collapse: collapse;
  margin: 20px 0;
  width: 100%;
}

th,
td {
  border: 1px solid var(--table-border);
  padding: 7px 10px;
  text-align: left;
}

thead {
  background: var(--table-heading-background);
}

.changelog-date {
  color: var(--foreground-muted);
  margin-top: 48px;
}

.page-toc {
  max-height: calc(100vh - 90px);
  overflow-y: auto;
  position: sticky;
  top: 28px;
}

.page-toc h2 {
  color: var(--foreground-muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-toc li {
  margin: 6px 0;
}

.page-toc a {
  color: var(--toc-link);
}

.page-toc .toc-level-3 {
  padding-left: 14px;
}

.page-navigation {
  display: grid;
  gap: 18px;
  grid-column: 1;
  grid-template-columns: 1fr 1fr;
  margin: 28px auto 0;
  width: 100%;
}

.page-navigation a {
  background: var(--button-background);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  padding: 12px 16px;
}

.page-navigation a:last-child {
  text-align: right;
}

.page-navigation small {
  color: var(--foreground-muted);
}

.sidebar-toggle,
.sidebar-scrim {
  display: none;
}

@media (max-width: 1100px) {
  .content-grid {
    display: block;
  }

  .page-toc {
    display: none;
  }
}

@media (max-width: 760px) {
  .sidebar {
    box-shadow: 4px 0 16px rgba(0, 0, 0, 0.16);
    transform: translateX(-105%);
    transition: transform 160ms ease;
    width: min(var(--sidebar-width), 86vw);
  }

  .navigation-open .sidebar {
    transform: translateX(0);
  }

  .sidebar-scrim {
    background: rgba(0, 0, 0, 0.35);
    inset: 0;
    position: fixed;
    z-index: 10;
  }

  .navigation-open .sidebar-scrim {
    display: block;
  }

  .sidebar-toggle {
    background: var(--button-background);
    border: 1px solid var(--border);
    color: var(--foreground);
    border-radius: 6px;
    display: block;
    left: 14px;
    padding: 7px 10px;
    position: absolute;
    top: 12px;
    z-index: 5;
  }

  .page {
    margin-left: 0;
    padding: 64px 14px 36px;
  }

  main {
    padding: 26px 22px 36px;
  }

  main h1 {
    font-size: 1.8rem;
  }

  .page-navigation {
    grid-template-columns: 1fr;
  }
}

@media print {
  :root {
    --background: #fff;
    --foreground: #212121;
    --link: #0070e0;
    color-scheme: light;
  }

  .sidebar,
  .sidebar-toggle,
  .page-toc,
  .page-navigation,
  .code-copy-button {
    display: none;
  }

  .page {
    margin: 0;
    padding: 0;
  }

  main {
    border: 0;
    padding: 0;
  }
}