:root{--bg:#0b0f14;--fg:#e8edf2;--muted:#9aa7b4;--accent:#4f8cff;--card:#121821;--border:#1f2a36;--max:1100px}
@media(prefers-color-scheme:light){:root{--bg:#fff;--fg:#0b0f14;--muted:#5a6773;--card:#f5f7fa;--border:#e3e8ee}}
*{box-sizing:border-box}body{margin:0;font:16px/1.6 system-ui,-apple-system,Segoe UI,Inter,sans-serif;background:var(--bg);color:var(--fg)}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:var(--max);margin:0 auto;padding:0 1.25rem}
header{border-bottom:1px solid var(--border)}header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:700;font-size:1.2rem;color:var(--fg)}nav a{margin-left:1.25rem;color:var(--muted)}nav a:hover{color:var(--fg)}
.hero{padding:5rem 0 3rem}.hero h1{font-size:clamp(2rem,5vw,3.25rem);line-height:1.1;margin:0 0 1rem;max-width:18ch}.hero p{font-size:1.2rem;color:var(--muted);max-width:60ch}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:.8rem 1.4rem;border-radius:8px;font-weight:600;margin-top:1.5rem}.btn:hover{text-decoration:none;opacity:.9}
.grid{display:grid;gap:1.25rem;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));margin:2rem 0}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1.5rem}.card h3{margin:0 0 .5rem}.card p{color:var(--muted);margin:0}
section{padding:2.5rem 0}h2{font-size:1.75rem;margin:0 0 1rem}ul{padding-left:1.2rem}li{margin:.35rem 0}
footer{border-top:1px solid var(--border);padding:2rem 0;color:var(--muted);font-size:.9rem}