:root{--bg:#fff;--fg:#1d1d1f;--muted:#6e6e73;--accent:#2668f8;--line:#e5e5ea}
@media (prefers-color-scheme:dark){:root{--bg:#000;--fg:#f5f5f7;--muted:#a1a1a6;--accent:#5b8dff;--line:#2c2c2e}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
main{max-width:760px;margin:0 auto;padding:40px 16px 64px}h1{font-size:2rem;line-height:1.2;margin:0 0 4px}
h2{font-size:1.2rem;margin:2rem 0 .5rem;padding-top:1rem;border-top:1px solid var(--line)}h3{font-size:1rem;margin:1.2rem 0 .3rem}
.meta{color:var(--muted);margin:0 0 1.5rem}a{color:var(--accent)}ul{padding-left:1.2rem}li{margin:.25rem 0}
nav{display:flex;gap:16px;margin-bottom:24px;font-size:.95rem}table{border-collapse:collapse;width:100%;font-size:.95rem}
td,th{border:1px solid var(--line);padding:8px;text-align:left;vertical-align:top}footer{margin-top:48px;color:var(--muted);font-size:.9rem}