:root {
  --bg: #f7f8fb; --card: #ffffff; --text: #1d2433; --muted: #5b6475;
  --accent: #3a5bd9; --border: #e3e6ee;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #11141b; --card: #1a1f2a; --text: #e8ebf2; --muted: #9aa3b5; --accent: #8aa2ff; --border: #2a3140; }
}
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
a { color: var(--accent); }
header { border-bottom: 1px solid var(--border); background: var(--card); }
.wrap { max-width: 860px; margin: 0 auto; padding: 0 16px; }
header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 1.2rem; text-decoration: none; color: var(--text); letter-spacing: .04em; }
nav a { margin-left: 16px; text-decoration: none; font-size: .95rem; }
main { padding: 40px 0 64px; }
h1 { font-size: 2rem; margin: 0 0 8px; }
h2 { margin-top: 40px; }
.lead { color: var(--muted); font-size: 1.1rem; margin-top: 0; }
.apps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.card h3 { margin: 0 0 4px; }
.card p { margin: 0 0 12px; color: var(--muted); }
.card a { margin-right: 12px; font-size: .95rem; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; }
dt { color: var(--muted); }
dd { margin: 0; }
footer { border-top: 1px solid var(--border); color: var(--muted); font-size: .9rem; padding: 24px 0; }
.doc h2 { font-size: 1.25rem; }