:root{color-scheme:light dark;--bg:#fff;--fg:#0b0b0f;--muted:#6c6c70;--accent:#0b5cad;--card:#f2f2f7}
@media (prefers-color-scheme:dark){:root{--bg:#000;--fg:#f5f5f7;--muted:#98989f;--accent:#4a94ff;--card:#1c1c1e}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.55 -apple-system,system-ui,"Helvetica Neue",sans-serif;-webkit-font-smoothing:antialiased}
main{max-width:640px;margin:0 auto;padding:48px 20px 64px}
h1{font-size:34px;line-height:1.15;margin:0 0 8px;letter-spacing:-.5px}
h2{font-size:20px;margin:32px 0 8px}
p,li{color:var(--fg)}
.muted{color:var(--muted);font-size:15px}
a{color:var(--accent)}
.card{background:var(--card);border-radius:20px;padding:18px 20px;margin:20px 0}
.bands{display:flex;gap:3px;margin:16px 0 4px}
.bands span{height:8px;flex:1;border-radius:2px}
footer{margin-top:48px;font-size:14px;color:var(--muted)}