body{font-family:Arial;margin:0;background:#0b1220;color:white}nav{display:flex;justify-content:space-between;padding:20px;background:#08101d}.hero{text-align:center;padding:100px 20px;background:linear-gradient(135deg,#0a4d8c,#18a0fb)}section{padding:40px 20px;max-width:1100px;margin:auto}.cards{display:flex;gap:15px}.cards div{background:#182235;padding:20px;border-radius:12px}input,button{padding:12px;margin:5px}