body{margin:0;font-family:Arial,sans-serif;background:#f4f6fb;color:#222}.hero{height:100vh;background:linear-gradient(rgba(5,20,55,.75),rgba(5,20,55,.75)),url(https://images.unsplash.com/photo-1507525428034-b723cf961d3e?q=80&w=1600&auto=format&fit=crop);background-size:cover;padding:20px 8%;color:#fff}nav{display:flex;justify-content:space-between;align-items:center}nav ul{display:flex;gap:20px;list-style:none}nav ul li a{color:#fff;text-decoration:none}.logo{font-size:30px;font-weight:bold}.hero-content{margin-top:150px;max-width:700px}.hero-content h1{font-size:60px}.btn{display:inline-block;background:#d4af37;color:#081b4b;padding:15px 30px;border-radius:8px;text-decoration:none;font-weight:bold}.section,.dark{padding:80px 8%;text-align:center}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:25px}.card{background:#fff;padding:30px;border-radius:14px;box-shadow:0 5px 15px rgba(0,0,0,.1)}.dark{background:#081b4b;color:#fff}.dark .card{background:#12306d;color:#fff}footer{background:#081b4b;color:#fff;text-align:center;padding:50px 20px}@media(max-width:768px){nav{flex-direction:column}.hero-content h1{font-size:38px}}