:root {
  --bg: #08111f;
  --bg-elevated: #0f1b2d;
  --panel: #132338;
  --text: #e8eef7;
  --muted: #9bb0c7;
  --accent: #4da3ff;
  --accent-2: #7ef0d0;
  --border: rgba(157, 186, 214, 0.18);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --radius: 18px;
  --max: 1120px;
  --font: Inter, Segoe UI, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(77, 163, 255, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(126, 240, 208, 0.12), transparent 24%),
    linear-gradient(180deg, #07101c 0%, #0b1524 45%, #09111c 100%);
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: #8ec5ff; }

.wrap {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(8, 17, 31, 0.82);
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  font-weight: 700;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  display: inline-block;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,0.55), transparent 28%),
    radial-gradient(circle at 50% 55%, #4da3ff 0%, #1d4f91 55%, #0b1c33 100%);
  border: 1px solid var(--border);
  box-shadow: inset 0 0 0 1px rgba(126, 240, 208, 0.15);
}

.nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav a {
  color: var(--muted);
  font-size: 0.95rem;
}

.nav a:hover,
.nav a.active {
  color: var(--text);
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2rem;
  align-items: center;
  padding: 4rem 0 2.5rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

h1, h2, h3 { line-height: 1.15; margin: 0; }
h1 { font-size: clamp(2.4rem, 5vw, 4rem); margin: 0.8rem 0 1rem; }
h2 { font-size: 1.8rem; margin-bottom: 0.75rem; }
h3 { font-size: 1.15rem; margin-bottom: 0.45rem; }

.lead {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.75;
  max-width: 38rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.8rem 1.1rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 650;
}

.button.primary {
  background: linear-gradient(135deg, #4da3ff, #3b82f6);
  color: white;
}

.button.secondary {
  border-color: var(--border);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.hero-media {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  background: #000;
}

.hero-media img {
  display: block;
  width: 100%;
  height: auto;
}

.section {
  padding: 2.5rem 0;
}

.section-intro {
  color: var(--muted);
  line-height: 1.7;
  max-width: 46rem;
  margin-bottom: 1.5rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid.features {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.grid.examples {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: rgba(19, 35, 56, 0.88);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem;
  box-shadow: var(--shadow);
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.example-card {
  overflow: hidden;
  padding: 0;
}

.example-card img,
.example-card video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #000;
}

.example-card .body {
  padding: 1rem 1.1rem 1.15rem;
}

.code {
  margin: 0;
  overflow-x: auto;
  padding: 1rem 1.1rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #07111d;
  color: #d7e6f7;
  font-size: 0.9rem;
  line-height: 1.55;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0 3rem;
  color: var(--muted);
}

.footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.api-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

.api-toc {
  position: sticky;
  top: 88px;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(19, 35, 56, 0.72);
}

.api-toc h2 {
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.85rem;
}

.api-toc nav {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.api-toc a {
  color: var(--muted);
  font-size: 0.92rem;
}

.api-toc a:hover {
  color: var(--text);
}

.api-section + .api-section {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.method {
  margin: 1.25rem 0;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(7, 17, 29, 0.72);
}

.method h3 {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1rem;
  color: #d7e6f7;
}

.method p {
  color: var(--muted);
  line-height: 1.65;
  margin: 0.65rem 0 0;
}

.method .sig {
  margin-top: 0.75rem;
  overflow-x: auto;
  padding: 0.7rem 0.85rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #050d16;
  color: #9fd0ff;
  font-size: 0.84rem;
  line-height: 1.5;
}

.param-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.9rem;
  font-size: 0.9rem;
}

.param-table th,
.param-table td {
  text-align: left;
  vertical-align: top;
  padding: 0.55rem 0.45rem;
  border-bottom: 1px solid var(--border);
}

.param-table th {
  color: var(--muted);
  font-weight: 650;
}

.param-table code {
  color: #d7e6f7;
}

.note {
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--accent);
  background: rgba(77, 163, 255, 0.08);
  color: var(--muted);
  line-height: 1.65;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 2.5rem;
  }

  .api-layout {
    grid-template-columns: 1fr;
  }

  .api-toc {
    position: static;
  }
}