body{font-family:Arial,sans-serif;margin:0;background:#071626;color:#fff}header{display:flex;justify-content:space-between;padding:20px;background:#0c2238}nav a{color:#fff;margin:0 10px;text-decoration:none}.hero{padding:80px 20px;text-align:center;background:linear-gradient(135deg,#0d3b66,#06131f)}section{padding:40px 20px}.card{background:#123;padding:20px;margin:10px;border-radius:10px}footer{padding:20px;text-align:center;background:#000}