:root{--bg:#0b1020;--fg:#e8ecf5;--muted:#9aa4bd;--accent:#5b8cff;--card:#131a30}
*{box-sizing:border-box}body{margin:0;font:16px/1.6 system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--fg)}
a{color:var(--accent)}header,main,footer{max-width:880px;margin:0 auto;padding:24px 16px}
header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
header strong{font-size:1.2rem}nav a{margin-left:16px;text-decoration:none;color:var(--muted)}
h1{font-size:2.2rem;line-height:1.2}h2{margin-top:2rem}
.card{background:var(--card);border-radius:12px;padding:16px 20px;margin:12px 0}
.muted{color:var(--muted)}footer{border-top:1px solid #222a44;color:var(--muted);font-size:.9rem}