:root{--bg:#f7f6f3;--surface:#fff;--ink:#16181d;--muted:#5b616c;--line:#e3e1db;--accent:#e8590c}
@media (prefers-color-scheme:dark){:root{--bg:#0f1114;--surface:#181b20;--ink:#f1f2f4;--muted:#a3a9b3;--line:#2a2e35;--accent:#ff8a4c}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:40px 20px 72px}
h1{font-size:2.2rem;line-height:1.2;margin:.2em 0}h2{font-size:1.25rem;margin:2em 0 .4em}
p,li{color:var(--ink)}.muted{color:var(--muted)}a{color:var(--accent)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:28px;padding:24px;margin:20px 0}
table{width:100%;border-collapse:collapse;font-size:.95rem}th,td{text-align:left;vertical-align:top;padding:10px 8px;border-bottom:1px solid var(--line)}
nav{display:flex;gap:16px;font-size:.95rem}footer{margin-top:48px;color:var(--muted);font-size:.9rem}