:root {
  color-scheme: dark;
  --bg: #0b0d11;
  --panel: #141821;
  --panel-2: #1b202b;
  --text: #f5f7fb;
  --muted: #aeb7c6;
  --accent: #ef4444;
  --line: #2a3140;
  --max: 920px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(circle at top, #171b25 0, var(--bg) 42%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}
a { color: #ff8a8a; }
a:hover { color: #ffb1b1; }
.wrap { width: min(calc(100% - 32px), var(--max)); margin: 0 auto; }
header {
  border-bottom: 1px solid var(--line);
  background: rgba(11, 13, 17, .86);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 10;
}
nav { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { color: white; text-decoration: none; font-weight: 800; letter-spacing: .2px; font-size: 1.1rem; }
.brand span { color: var(--accent); }
.links { display: flex; gap: 16px; flex-wrap: wrap; }
.links a { color: var(--muted); text-decoration: none; font-size: .95rem; }
.links a:hover { color: white; }
.hero { padding: 88px 0 72px; }
.eyebrow { color: #ff9d9d; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; }
h1 { font-size: clamp(2.4rem, 7vw, 5rem); line-height: 1; margin: 14px 0 20px; letter-spacing: -.04em; }
h2 { margin-top: 42px; line-height: 1.2; }
h3 { margin-top: 28px; }
p, li { color: #dbe1ea; }
.lead { max-width: 720px; font-size: 1.15rem; color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-top: 34px; }
.card { background: linear-gradient(180deg, var(--panel-2), var(--panel)); border: 1px solid var(--line); border-radius: 18px; padding: 22px; }
.card strong { display: block; margin-bottom: 6px; }
main.doc { padding: 54px 0 80px; }
.notice { border-left: 4px solid var(--accent); background: var(--panel); padding: 14px 18px; border-radius: 8px; color: var(--muted); }
code { background: #11151c; border: 1px solid var(--line); border-radius: 6px; padding: 2px 6px; }
footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: .9rem; }
@media (max-width: 600px) {
  nav { align-items: flex-start; padding: 16px 0; flex-direction: column; }
  .hero { padding-top: 58px; }
}