:root{--ink:#14202b;--mut:#4a5a68;--bg:#f6f8fa;--card:#fff;--line:#d9e0e6;--acc:#0b5c8a}
*{box-sizing:border-box}body{margin:0;font:17px/1.55 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--acc)}header,main,footer{max-width:960px;margin:0 auto;padding:20px}
header{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}
header strong{font-size:1.15rem}nav a{margin-right:16px;text-decoration:none;font-weight:600}
h1{font-size:2rem;line-height:1.2}h2{margin-top:2rem}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:18px}
.card h3{margin:.2rem 0}.tag{display:inline-block;font-size:.8rem;font-weight:700;padding:2px 10px;border-radius:99px;background:#e7eef3;color:#27465a}
footer{color:var(--mut);font-size:.9rem;border-top:1px solid var(--line);margin-top:32px}