body{margin:0;font-family:Arial;background:#f5f7fb;color:#222}nav{position:fixed;top:0;width:100%;background:#123c7a;color:#fff;padding:15px}nav a{color:#fff;margin:10px;text-decoration:none}.hero{height:100vh;background:linear-gradient(rgba(0,0,0,.5),rgba(0,0,0,.5)),url('https://images.unsplash.com/photo-1505693416388-ac5ce068fe85?auto=format&fit=crop&w=1400&q=80') center/cover;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff}.btn{background:#f4b400;padding:15px 25px;color:#000;text-decoration:none;border-radius:8px}.sec{padding:60px 20px;max-width:1000px;margin:auto}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:15px}.card{background:#fff;padding:20px;border-radius:10px;box-shadow:0 2px 8px #ccc}footer{background:#123c7a;color:#fff;text-align:center;padding:20px}