:root{--bg:#fff;--fg:#1a1a1a;--muted:#555;--line:#e5e5e5;--link:#0b57d0}
@media (prefers-color-scheme:dark){:root{--bg:#121212;--fg:#eee;--muted:#aaa;--line:#333;--link:#8ab4f8}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
main{max-width:780px;margin:0 auto;padding:32px 16px 64px}header{display:flex;align-items:center;gap:12px}
header img{width:44px;height:44px;border-radius:50%}nav{font-size:14px;margin:8px 0 24px;display:flex;flex-wrap:wrap;gap:4px 16px}
a{color:var(--link)}h1{font-size:28px;margin:8px 0}h2{font-size:20px;margin-top:32px}.muted{color:var(--muted);font-size:14px}
hr{border:0;border-top:1px solid var(--line);margin:40px 0}footer{font-size:13px;color:var(--muted);border-top:1px solid var(--line);margin-top:48px;padding-top:16px}