:root{--bg:#f6f8fb;--fg:#10182b;--muted:#4a5568;--card:#fff;--accent:#2046d6;--line:#dde3ee}
@media (prefers-color-scheme:dark){:root{--bg:#0e1424;--fg:#eef2fb;--muted:#a9b4cc;--card:#161e33;--accent:#7e9bff;--line:#26304a}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
header,main,footer{max-width:720px;margin:0 auto;padding:0 20px}header{flex-wrap:wrap;gap:8px;display:flex;justify-content:space-between;align-items:center;padding-top:20px;padding-bottom:20px}
.brand{font-weight:700;font-size:20px;color:var(--fg);text-decoration:none}nav{display:flex;flex-wrap:wrap;gap:4px 16px}nav a{color:var(--muted);text-decoration:none}nav a:hover,nav a[aria-current]{color:var(--accent)}
h1{font-size:2rem;line-height:1.2;margin:1.5rem 0 .5rem}h2{font-size:1.25rem;margin:2rem 0 .5rem}a{color:var(--accent)}
.lead{font-size:1.2rem;color:var(--muted)}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin:12px 0}
table{border-collapse:collapse;width:100%;font-size:15px}th,td{border-bottom:1px solid var(--line);padding:8px 6px;text-align:start;vertical-align:top}
footer{padding-top:32px;padding-bottom:48px;color:var(--muted);font-size:14px}.updated{color:var(--muted);font-size:14px}