:root{--bg:#fbfaf7;--fg:#1f2328;--muted:#5b6470;--accent:#1d5c8f;--line:#e4e1da}
@media (prefers-color-scheme:dark){:root{--bg:#15181c;--fg:#e8e6e1;--muted:#a3abb5;--accent:#7fb4e0;--line:#2b3037}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.65 Georgia,"Times New Roman",serif}
header,main,footer{max-width:760px;margin:0 auto;padding:0 20px}
header{padding-top:28px;padding-bottom:14px;border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;gap:8px 20px;align-items:baseline;justify-content:space-between}
.brand{font-weight:bold;color:var(--fg);text-decoration:none;font-size:1.05rem}
nav a{color:var(--accent);text-decoration:none;margin-left:16px;font-family:system-ui,sans-serif;font-size:.92rem}
nav a:first-child{margin-left:0}
h1{font-size:1.9rem;line-height:1.25;margin:32px 0 6px}
h2{font-size:1.2rem;margin:30px 0 6px}
.updated{color:var(--muted);font-family:system-ui,sans-serif;font-size:.9rem;margin-top:0}
a{color:var(--accent)}
footer{margin-top:48px;padding-top:16px;padding-bottom:40px;border-top:1px solid var(--line);color:var(--muted);font-family:system-ui,sans-serif;font-size:.88rem}