body{margin:0;font-family:Arial,sans-serif;color:#1b1b1b}header{background:#0B2341;color:#fff;position:sticky;top:0}.wrap{max-width:1100px;margin:auto;padding:20px}nav a{color:#fff;margin:0 10px;text-decoration:none}.hero{height:75vh;background:linear-gradient(rgba(11,35,65,.65),rgba(11,35,65,.65)),url('https://images.unsplash.com/photo-1600585154340-be6161a56a0c?auto=format&fit=crop&w=1400&q=80') center/cover;display:flex}.overlay{margin:auto;text-align:center;color:#fff}.btn{display:inline-block;margin:8px;padding:12px 18px;background:#F47C20;color:#fff;text-decoration:none;border-radius:6px}.secondary{background:#fff;color:#0B2341}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}.grid div{background:#f3f3f3;padding:20px;border-radius:8px}footer{background:#0B2341;color:#fff;text-align:center;padding:20px;margin-top:40px}