body{margin:0;font-family:Inter,Arial,sans-serif;background:#0a0a0a;color:#fff}
header{background:#111;position:sticky;top:0;padding:15px 30px}
nav a{color:#fff;text-decoration:none;margin-right:20px}
.hero{padding:80px 20px;text-align:center;background:linear-gradient(135deg,#0f172a,#1e3a8a)}
.hero img{max-width:800px;width:100%;border-radius:15px}
.container{max-width:1200px;margin:auto;padding:40px 20px}
.card{background:#161616;padding:20px;border-radius:12px;margin:15px 0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
footer{padding:30px;background:#111;text-align:center}