:root{--ink:#203331;--muted:#5f716c;--line:#e1e9e5;--paper:#fafbf9;--red:#d93444;--card:#fff}
@media(prefers-color-scheme:dark){:root{--ink:#e3efe9;--muted:#9fb5aa;--line:#2b4140;--paper:#0c1719;--red:#f27582;--card:#132522}}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.65 system-ui,-apple-system,'Segoe UI',Arial,sans-serif}
header,main,footer{max-width:760px;margin:auto;padding:0 20px}
header{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;padding-top:22px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.brand{font-weight:700;font-size:20px;color:var(--ink);text-decoration:none}.brand b{color:var(--red)}
nav{display:flex;gap:16px;flex-wrap:wrap}nav a{color:var(--muted);text-decoration:none;font-size:15px}nav a:hover,nav a[aria-current]{color:var(--red)}
h1{font-size:34px;line-height:1.2;margin:34px 0 4px}h2{font-size:21px;margin:32px 0 8px}
.updated{color:var(--muted);font-size:14px;margin:0 0 20px}
a{color:var(--red)}ul{padding-left:22px}li{margin:6px 0}
.box{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:6px 20px;margin:18px 0}
footer{border-top:1px solid var(--line);margin-top:48px;padding-top:18px;padding-bottom:40px;color:var(--muted);font-size:14px}