:root { --ink:#0C1220; --muted:#6B7385; --brand:#163A6B; --deep:#0C2448; --foam:#F0F2F7; --line:rgba(12,18,32,.08); }
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--foam);color:var(--ink);line-height:1.65}
main{max-width:760px;margin:0 auto;padding:28px 20px 64px}
nav{display:flex;justify-content:space-between;gap:12px;margin-bottom:24px;flex-wrap:wrap}
a{color:var(--brand);text-decoration:none;font-weight:600}
h1{font-size:1.9rem;letter-spacing:-.03em;margin:8px 0 12px}
h2{font-size:1.05rem;color:var(--deep);margin:22px 0 8px}
p{margin:0 0 10px}
.muted{color:var(--muted)}
.card{margin-top:28px;padding:16px;border:1px solid var(--line);border-radius:14px;background:#fff}
.langs a{margin-left:10px;font-weight:500}