:root {
  --bg: #fafafa;
  --fg: #111827;
  --muted: #6b7280;
  --border: #e5e7eb;
  --card: #ffffff;
  --accent: #000000;
  --accent-fg: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #09090b;
    --fg: #f4f4f5;
    --muted: #a1a1aa;
    --border: #27272a;
    --card: #18181b;
    --accent: #ffffff;
    --accent-fg: #000000;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: inherit; }
.wrap { max-width: 720px; margin: 0 auto; padding: 0 16px; }
header.site, footer.site { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 24px 0; }
header.site a.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; text-decoration: none; letter-spacing: -0.01em; }
header.site a.brand img { width: 28px; height: 28px; border-radius: 6px; }
nav a { color: var(--muted); text-decoration: none; font-size: 14px; margin-left: 16px; }
nav a:hover { color: var(--fg); }
main { padding: 32px 0 48px; }
h1 { font-size: clamp(32px, 6vw, 48px); line-height: 1.1; letter-spacing: -0.03em; margin: 0 0 16px; }
h2 { font-size: 20px; letter-spacing: -0.01em; margin: 40px 0 12px; }
h3 { font-size: 16px; margin: 24px 0 4px; }
p, li { color: var(--fg); }
.lead { font-size: 18px; color: var(--muted); margin: 0 0 32px; }
.muted { color: var(--muted); font-size: 14px; }
.badge { display: inline-block; font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.12em; border: 1px solid var(--border); border-radius: 8px; padding: 4px 8px; margin-bottom: 20px; color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; padding: 0; list-style: none; }
.cards li { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.cards strong { display: block; margin-bottom: 4px; }
.cards span { color: var(--muted); font-size: 14px; }
pre { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; overflow-x: auto; font-size: 14px; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.btn { display: inline-block; background: var(--accent); color: var(--accent-fg); text-decoration: none; font-size: 11px; font-weight: 900; text-transform: uppercase; letter-spacing: 0.12em; border-radius: 8px; padding: 12px 18px; }
details { border-bottom: 1px solid var(--border); padding: 12px 0; }
summary { cursor: pointer; font-weight: 600; }
details p { margin: 8px 0 0; color: var(--muted); }
footer.site { border-top: 1px solid var(--border); font-size: 14px; color: var(--muted); flex-wrap: wrap; }
footer.site nav a { margin: 0 16px 0 0; }