:root{--bg:#fff;--fg:#1a1a1a;--muted:#5c5c5c;--line:#e4e4e4;--accent:#1f5fbf}
@media (prefers-color-scheme:dark){:root{--bg:#121212;--fg:#ececec;--muted:#a0a0a0;--line:#2c2c2c;--accent:#7aa7ff}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
header,main,footer{max-width:760px;margin:0 auto;padding:0 16px}
header{display:flex;justify-content:space-between;align-items:center;padding-top:20px;padding-bottom:20px;border-bottom:1px solid var(--line);flex-wrap:wrap;gap:8px}
header a.brand{font-weight:700;color:var(--fg);text-decoration:none}nav a{margin-left:16px;color:var(--muted);text-decoration:none}nav a:hover{color:var(--accent)}
a{color:var(--accent)}h1{font-size:2rem;line-height:1.25;margin:40px 0 12px}h2{font-size:1.2rem;margin-top:32px}
.muted{color:var(--muted)}table{border-collapse:collapse;width:100%;font-size:.95rem}td,th{border-bottom:1px solid var(--line);padding:8px 6px;text-align:left;vertical-align:top}
footer{margin-top:56px;padding-top:20px;padding-bottom:40px;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}footer a{color:var(--muted);margin-right:16px}