:root {
  --bg: #fafaf9; --surface: #ffffff; --text: #1c1917; --muted: #57534e;
  --border: #e7e5e4; --accent: #c2410c;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0a09; --surface: #1c1917; --text: #f5f5f4; --muted: #a8a29e;
    --border: #292524; --accent: #fb923c;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 56px 16px 72px; }
a { color: var(--accent); }
header.hero { display: flex; gap: 20px; align-items: center; margin-bottom: 32px; }
header.hero img { width: 72px; height: 72px; border-radius: 16px; }
h1 { font-size: 30px; line-height: 1.2; margin: 0; }
.tagline { color: var(--muted); margin: 4px 0 0; }
ul.features { padding: 0; list-style: none; display: grid; gap: 12px; }
ul.features li { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; }
ul.features strong { display: block; }
nav.links { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 32px; }
footer { margin-top: 48px; color: var(--muted); font-size: 14px; }
.doc h1 { margin-bottom: 8px; }
.doc h2 { margin-top: 32px; font-size: 20px; }