:root{--bg:#faf8ff;--fg:#131b2e;--muted:#464555;--accent:#4f46e5;--card:#fff;--rim:rgba(15,23,42,.08)}
@media (prefers-color-scheme:dark){:root{--bg:#0f131c;--fg:#dfe2ef;--muted:#c7c4d7;--accent:#c0c1ff;--card:#1c1f29;--rim:rgba(255,255,255,.08)}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,sans-serif}
main{max-width:720px;margin:0 auto;padding:48px 16px 64px}
header{display:flex;align-items:center;gap:14px;margin-bottom:32px}header img{width:56px;height:56px;border-radius:14px}
header a{color:var(--fg);text-decoration:none;font-weight:700;font-size:24px;letter-spacing:-.4px}
h1{font-size:34px;letter-spacing:-.8px;line-height:1.2;margin:0 0 8px}h2{font-size:21px;margin:36px 0 8px;letter-spacing:-.3px}
p,li{color:var(--muted)}a{color:var(--accent)}.card{background:var(--card);border:1px solid var(--rim);border-radius:20px;padding:20px 24px;margin:16px 0}
footer{margin-top:48px;font-size:14px;color:var(--muted)}