:root{--ground:#fff;--ink:#14181f;--muted:#5c6675;--rule:#e2e6ec;--accent:#1f4fd8}@media (prefers-color-scheme:dark){:root{--ground:#0e1218;--ink:#e6eaf0;--muted:#98a3b2;--rule:#252d38;--accent:#7ba3ff}}*{box-sizing:border-box}body{background:var(--ground);color:var(--ink);margin:0;font:16px/1.6 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}main{max-width:62rem;margin:0 auto;padding:2.5rem 1.25rem 5rem}a{color:var(--accent)}h1{letter-spacing:-.02em;margin:0 0 .5rem;font-size:1.9rem}.muted{color:var(--muted)}.grid{grid-template-columns:repeat(auto-fill,minmax(16rem,1fr));gap:.75rem;margin-top:1.5rem;display:grid}.card{border:1px solid var(--rule);border-radius:6px;padding:.9rem 1rem}.card h2{margin:0 0 .25rem;font-size:1rem}