:root{--bg:#0d1220;--card:#151c2e;--ink:#e6ebf6;--muted:#98a3ba;--accent:#7b96ff}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:760px;margin:0 auto;padding:48px 20px 80px}
h1{font-size:2.2rem;line-height:1.15;margin:0 0 8px}
h2{font-size:1.2rem;margin:32px 0 8px}
p,li{color:var(--ink)}
.muted{color:var(--muted)}
a{color:var(--accent)}
nav{display:flex;gap:18px;flex-wrap:wrap;margin-bottom:36px;font-weight:600}
.card{background:var(--card);border-radius:14px;padding:20px 22px;margin:20px 0}
footer{margin-top:48px;color:var(--muted);font-size:.9rem}