:root{--bg:#0b0b0b;--fg:#f4f4f2;--muted:#a3a3a0;--accent:#ffc928;--line:#262626;color-scheme:dark}
@media (prefers-color-scheme:light){:root{--bg:#fafaf7;--fg:#141414;--muted:#5d5d59;--accent:#9a6b00;--line:#e4e4de;color-scheme:light}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:40px 16px 64px}
header{display:flex;justify-content:space-between;align-items:baseline;gap:16px;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:24px}
.brand{font-weight:800;font-size:22px;color:var(--fg);text-decoration:none;letter-spacing:-.02em}
.brand span{color:var(--accent)}
nav a,a{color:var(--accent)}
h1{font-size:30px;line-height:1.2;margin:0 0 4px}
h2{font-size:19px;margin:32px 0 8px}
.meta{color:var(--muted);font-size:14px;margin:0 0 24px}
ul,ol{padding-left:22px}
li{margin:4px 0}
.box{border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin:20px 0}
footer{margin-top:48px;color:var(--muted);font-size:14px;border-top:1px solid var(--line);padding-top:16px}