:root{color-scheme:light dark;--fg:#1c1c1e;--muted:#5b5b60;--bg:#fff;--card:#f2f2f7;--accent:#0a6e5c}
@media (prefers-color-scheme:dark){:root{--fg:#f2f2f7;--muted:#a1a1a6;--bg:#000;--card:#1c1c1e;--accent:#4fc3a8}
}
*{box-sizing:border-box}
body{margin:0;font:17px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--fg);background:var(--bg)}
main{max-width:720px;margin:0 auto;padding:24px 20px 48px}
header{display:flex;align-items:center;gap:14px;margin-bottom:8px}
header img{width:56px;height:56px;border-radius:13px}
header p{margin:0;color:var(--muted);font-size:15px}
h1{font-size:28px;margin:0;line-height:1.2}
h2{font-size:20px;margin:32px 0 8px}
a{color:var(--accent)}
nav{margin:12px 0 24px;font-size:15px}
nav a{margin-right:16px}
.card{background:var(--card);border-radius:12px;padding:14px 18px;margin:16px 0}
.small,footer{font-size:14px;color:var(--muted)}
footer{margin-top:40px;border-top:1px solid var(--card);padding-top:16px}
ul{padding-left:22px}