body{font-family:Arial,sans-serif;margin:0;background:#eef2f7;color:#233}header,footer{background:#12324a;color:#fff;padding:20px}nav a{color:#fff;margin:0 10px;text-decoration:none}.wrap{max-width:1100px;margin:auto}.hero{padding:40px}.card{background:#fff;padding:20px;margin:20px 0;border-radius:8px;box-shadow:0 2px 6px #0002}