:root {
  --bg: #f6f8fa;
  --button-bg: #ffffff;
  --danger: #cf222e;
  --fg: #24292f;
  --muted: #57606a;
  --muted-line: #8c959f;
  --success: #2da44e;
  --border: #d0d7de;
  --header-bg: rgba(246, 248, 250, 0.86);
  --panel: #ffffff;
  --shadow: rgba(36, 41, 47, 0.12);
}

:root[data-theme="dark"] {
  --bg: #0d1117;
  --button-bg: #161b22;
  --danger: #ff7b72;
  --fg: #f0f6fc;
  --muted: #8b949e;
  --muted-line: #6e7681;
  --success: #3fb950;
  --border: #30363d;
  --header-bg: rgba(13, 17, 23, 0.9);
  --panel: #161b22;
  --shadow: rgba(1, 4, 9, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  background: var(--bg);
  color: var(--fg);
  font:
    16px/1.5 -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  margin: 0;
}

a {
  color: inherit;
}

.site-header,
footer {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1120px;
  padding: 20px;
}

.site-header {
  background: var(--header-bg);
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  align-items: center;
  display: inline-flex;
  font-weight: 800;
  gap: 10px;
  text-decoration: none;
}

.brand img {
  height: 34px;
  width: 34px;
}

.site-nav,
footer {
  color: var(--muted);
  gap: 18px;
}

.site-nav {
  align-items: center;
  background: var(--button-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  flex-wrap: wrap;
  padding: 6px;
}

.site-nav a,
footer a {
  font-size: 14px;
  line-height: 1;
  text-decoration: none;
}

.site-nav a {
  border-radius: 6px;
  padding: 8px 9px;
}

.icon-link {
  align-items: center;
  display: inline-flex;
  gap: 7px;
}

.youtube-icon {
  background: #ff0033;
  border-radius: 5px;
  display: inline-block;
  height: 16px;
  position: relative;
  width: 22px;
}

.youtube-icon::after {
  border-bottom: 4px solid transparent;
  border-left: 7px solid white;
  border-top: 4px solid transparent;
  content: "";
  left: 8px;
  position: absolute;
  top: 4px;
}

.site-nav a:hover,
.site-controls button:hover,
.button:hover {
  border-color: var(--muted-line);
}

.site-controls {
  display: flex;
  gap: 8px;
}

.site-controls button {
  background: var(--button-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  min-width: 54px;
  padding: 8px 10px;
}

main {
  margin: 0 auto;
  max-width: 1120px;
  padding: 18px 20px 56px;
}

.hero {
  align-items: center;
  display: grid;
  gap: 36px;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 460px);
  min-height: 620px;
}

.eyebrow {
  color: var(--success);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin: 0 0 12px;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(48px, 8vw, 92px);
  line-height: 0.95;
  margin-bottom: 22px;
}

h2 {
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.05;
  margin-bottom: 0;
}

.lede {
  color: var(--muted);
  font-size: 22px;
  max-width: 620px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.button {
  background: var(--button-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  font-weight: 700;
  padding: 10px 14px;
  text-decoration: none;
}

.button.primary {
  background: var(--fg);
  border-color: var(--fg);
  color: white;
}

.demo {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 24px 60px var(--shadow);
  display: grid;
  gap: 12px;
  padding: 16px;
}

.github-line,
.filter-bar {
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  gap: 10px;
  min-height: 44px;
  padding: 10px;
}

.github-line {
  color: var(--muted);
  justify-content: flex-end;
}

.github-line span {
  margin-right: auto;
}

.github-line.active {
  background: var(--bg);
}

.add {
  color: var(--success);
}

.del {
  color: var(--danger);
}

.filter-bar {
  border-left: 4px solid var(--success);
  flex-wrap: wrap;
}

code {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--fg);
  font:
    13px ui-monospace,
    SFMono-Regular,
    Menlo,
    Consolas,
    monospace;
  padding: 5px 7px;
}

.filter-bar span {
  color: var(--muted);
  font-size: 13px;
  margin-left: auto;
}

.file-list {
  display: grid;
  gap: 8px;
}

.file-list span {
  border-radius: 6px;
  font:
    13px ui-monospace,
    SFMono-Regular,
    Menlo,
    Consolas,
    monospace;
  padding: 8px;
}

.file-list .show {
  background: rgba(45, 164, 78, 0.1);
}

.file-list .hide {
  background: rgba(207, 34, 46, 0.08);
  color: var(--muted-line);
  text-decoration: line-through;
}

.section {
  border-top: 1px solid var(--border);
  display: grid;
  gap: 24px;
  padding: 64px 0;
}

.split {
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
}

.section > p,
.split > p {
  color: var(--muted);
  font-size: 18px;
}

.video-section {
  grid-template-columns: minmax(0, 0.72fr) minmax(420px, 1.28fr);
}

.video-frame {
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 5px solid var(--success);
  border-radius: 8px;
  box-shadow: 0 18px 42px var(--shadow);
  overflow: hidden;
}

.promo-video {
  aspect-ratio: 16 / 9;
  background: #000;
  display: block;
  object-fit: cover;
  width: 100%;
}

.video-brand {
  align-items: center;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  justify-content: space-between;
  padding: 10px 14px;
}

.video-brand span:first-child {
  color: var(--fg);
  font-weight: 800;
}

.video-brand span:last-child {
  color: var(--muted);
  font-size: 14px;
}

.video-note {
  color: var(--muted);
  font-size: 14px;
  margin: 10px 0 0 5px;
}

.playlist-link {
  align-items: center;
  background: var(--button-bg);
  border-top: 1px solid var(--border);
  color: var(--fg);
  display: flex;
  font-size: 14px;
  font-weight: 800;
  gap: 9px;
  justify-content: center;
  padding: 12px 14px;
  text-decoration: none;
}

.playlist-link:hover {
  color: var(--success);
}

.screenshots {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.screenshot {
  margin: 0;
}

.screenshot.wide {
  grid-column: span 2;
}

.screenshot.compare img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top left;
}

.screenshot img {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 18px 42px var(--shadow);
  display: block;
  height: auto;
  width: 100%;
}

.popup-shot {
  max-width: 380px;
}

.screenshot figcaption {
  color: var(--muted);
  font-size: 14px;
  margin-top: 8px;
}

.syntax-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.syntax-grid article {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
}

.syntax-grid p {
  color: var(--muted);
  font-size: 14px;
  margin: 10px 0 0;
}

footer {
  border-top: 1px solid var(--border);
}

footer span {
  color: var(--fg);
  font-weight: 800;
  margin-right: auto;
}

@media (max-width: 800px) {
  .site-header {
    align-items: flex-start;
    gap: 14px;
    position: static;
  }

  .site-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    order: 3;
    width: 100%;
  }

  .hero,
  .video-section,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding: 42px 0;
  }

  .syntax-grid {
    grid-template-columns: 1fr 1fr;
  }

  .screenshots {
    grid-template-columns: 1fr;
  }

  .screenshot.wide {
    grid-column: auto;
  }
}

@media (max-width: 520px) {
  .site-header,
  footer {
    padding-left: 14px;
    padding-right: 14px;
  }

  main {
    padding-left: 14px;
    padding-right: 14px;
  }

  .site-nav {
    gap: 10px;
  }

  .syntax-grid {
    grid-template-columns: 1fr;
  }
}