body{margin:0;font-family:Arial,sans-serif;background:#f5f7fa;color:#333}
header{background:#123a63;color:#fff;padding:24px}
nav a{color:#fff;margin-right:16px;text-decoration:none}
.hero{background:#2b6cb0;color:#fff;padding:60px 20px;text-align:center}
.container{max-width:1100px;margin:auto;padding:20px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.card{background:#fff;border:1px solid #ddd;border-radius:8px;padding:20px}
footer{background:#123a63;color:#fff;text-align:center;padding:20px;margin-top:40px}