body{font-family:Arial;margin:0}header,footer{background:#112244;color:#fff;padding:20px;text-align:center}nav a{color:#fff;margin:10px;text-decoration:none}.hero{padding:80px;text-align:center;background:#eef2f7}.btn,button{background:#112244;color:#fff;padding:10px 20px;border:none;text-decoration:none}section{padding:40px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}.card{border:1px solid #ccc;padding:20px;border-radius:8px}form{display:flex;flex-direction:column;gap:10px;max-width:400px;margin:auto}input,textarea{padding:10px}