:root{--bg:#f6f8fb;--card:#fff;--ink:#14213d;--muted:#5b6475;--accent:#1f4fd1;--line:#e3e8f0}
@media (prefers-color-scheme:dark){:root{--bg:#0e1420;--card:#161e2e;--ink:#e8edf6;--muted:#9aa5b8;--accent:#7aa2ff;--line:#263248}}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6}
a{color:var(--accent)}
header,footer{max-width:820px;margin:0 auto;padding:20px}
header{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.brand{font-weight:700;font-size:1.15rem;text-decoration:none;color:var(--ink)}
nav a{margin-left:14px;text-decoration:none;color:var(--muted);font-size:.95rem}
nav a:hover{color:var(--accent)}
main{max-width:820px;margin:0 auto;padding:0 20px 40px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:28px;margin-bottom:20px}
h1{font-size:1.9rem;line-height:1.25;margin:.2em 0 .4em}
h2{font-size:1.2rem;margin-top:1.8em}
.hero h1{font-size:2.3rem}
.lead{font-size:1.1rem;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.grid .card{margin:0;padding:20px}
.grid h3{margin:0 0 6px;font-size:1.02rem}
.grid p{margin:0;color:var(--muted);font-size:.95rem}
.pill{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:.9rem;color:var(--muted)}
.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;padding:10px 18px;border-radius:10px;font-weight:600}
.note{font-size:.9rem;color:var(--muted)}
footer{color:var(--muted);font-size:.85rem;border-top:1px solid var(--line)}
footer a{margin-right:14px;color:var(--muted)}