:root{--bg:#121735;--card:#1c2350;--ink:#eef1fb;--muted:#aab3d6;--accent:#3fd6c8}
@media (prefers-color-scheme: light){:root{--bg:#f3f5fb;--card:#ffffff;--ink:#141a3a;--muted:#55607f;--accent:#0f8f86}}
*{box-sizing:border-box}body{margin:0;font:17px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink)}
main{max-width:720px;margin:0 auto;padding:28px 18px 60px}
header{display:flex;align-items:center;gap:14px;margin-bottom:8px}header img{width:64px;height:64px;border-radius:15px}
h1{font-size:28px;margin:0}h2{font-size:22px;margin:30px 0 10px}h3{font-size:18px;margin:18px 0 6px}
.sub{color:var(--muted);margin:0}.card{background:var(--card);border-radius:16px;padding:16px 18px;margin:14px 0}
a{color:var(--accent)}.muted{color:var(--muted);font-size:15px}
details{background:var(--card);border-radius:14px;padding:12px 16px;margin:10px 0}summary{cursor:pointer;font-weight:600}
details p,details ul{margin:8px 0 2px}code{font-size:15px}