body{margin:0;font-family:Arial,sans-serif;background:#f5f5f5}
header{background:#0b3d91;color:white;padding:15px;text-align:center}
nav{background:#28a745;padding:10px;text-align:center}
nav a{color:white;margin:10px;text-decoration:none;font-weight:bold}
.hero{padding:60px;text-align:center;background:#e6f2ff}
.btn{background:#28a745;color:white;padding:12px 25px;border:none;border-radius:5px;cursor:pointer}
.section{padding:40px;text-align:center}
footer{background:#0b3d91;color:white;padding:20px;text-align:center}
.card{background:white;padding:20px;margin:10px;display:inline-block;width:250px;border-radius:10px;box-shadow:0 2px 5px rgba(0,0,0,0.2)}