:root{color-scheme:light dark;--bg:#EEEDF6;--fg:#0D1526;--muted:#4F566E;--card:rgba(255,255,255,.7);--accent:#0062CC}
@media (prefers-color-scheme:dark){:root{--bg:#0D1526;--fg:#fff;--muted:#B4BCD0;--card:rgba(255,255,255,.06);--accent:#4DA3FF}}
*{box-sizing:border-box}body{margin:0;font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--fg)}
main{max-width:760px;margin:0 auto;padding:48px 22px 80px}header{display:flex;align-items:center;gap:14px;margin-bottom:28px}
header img{width:56px;height:56px;border-radius:13px}h1{font-size:30px;margin:0;letter-spacing:-.5px}h2{margin-top:34px;font-size:20px}
.card{background:var(--card);border:1px solid rgba(127,127,127,.18);border-radius:20px;padding:20px 22px;backdrop-filter:blur(20px)}
a{color:var(--accent)}p,li{color:var(--fg)}small,.muted{color:var(--muted)}nav a{margin-right:18px;font-weight:600}