body {font-family: Arial;background:#f7f9fc;margin:0;}
header {background:#0a3d91;color:white;padding:20px;text-align:center;}
.hero {padding:40px;text-align:center;}
.btn {padding:12px 20px;background:#0a3d91;color:white;text-decoration:none;border-radius:6px;}
.btn:hover {background:#072f6b;}