body{font-family:Arial,sans-serif;margin:0;color:#0b1f3b}
nav{display:flex;justify-content:space-between;padding:20px;border-bottom:1px solid #eee}
a{text-decoration:none;margin:0 8px}
.hero{background:#0b1f3b;color:white;padding:80px 20px;text-align:center}
.section{padding:40px 20px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:15px}
.card{border:1px solid #ddd;padding:20px;border-radius:8px}