:root{--bg:#fff;--fg:#172b4d;--muted:#44546f;--line:#dfe1e6;--accent:#0c66e4}
@media (prefers-color-scheme:dark){:root{--bg:#1d2125;--fg:#dee4ea;--muted:#9fadbc;--line:#2c333a;--accent:#579dff}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
main{max-width:760px;margin:0 auto;padding:32px 16px 64px}nav{display:flex;gap:16px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:24px}
a{color:var(--accent)}h1{font-size:1.8rem;line-height:1.25}h2{margin-top:2rem;font-size:1.25rem}small,.muted{color:var(--muted)}
table{border-collapse:collapse;width:100%}td,th{border:1px solid var(--line);padding:6px 8px;text-align:left;vertical-align:top}