:root{--brand:#0D6E8C;--ink:#16232b;--muted:#5b6b76;--bg:#ffffff;--card:#f2f7f9}
*{box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
max-width:760px;margin:0 auto;padding:36px 20px 64px;line-height:1.6;color:var(--ink);background:var(--bg)}
h1{color:var(--brand);font-size:1.9rem;line-height:1.25;margin-bottom:.2em}
h2{color:var(--brand);font-size:1.15rem;margin-top:1.8em}
a{color:var(--brand)}
.card{background:var(--card);border-radius:14px;padding:18px 20px;margin:20px 0}
.nav{font-size:.95rem}
.muted{color:var(--muted);font-size:.9rem}
ul{padding-left:1.2em}
table{border-collapse:collapse;width:100%;margin:14px 0;font-size:.95rem}
th,td{border:1px solid #d9e4e9;padding:8px 10px;text-align:left}
th{background:var(--card)}
footer{margin-top:44px;font-size:.85rem;color:var(--muted);border-top:1px solid #e4ecef;padding-top:16px}
@media (prefers-color-scheme: dark){
:root{--ink:#e9f1f4;--muted:#9fb2bc;--bg:#101b21;--card:#17262e}
th{background:#17262e}th,td{border-color:#27404b}
}