body{font-family:Arial,sans-serif;background:#f4f6f9;margin:0}
.container{width:90%;max-width:1100px;margin:auto}
header{background:#0d6efd;color:#fff;padding:60px 20px;text-align:center}
.btn{background:#fff;color:#0d6efd;padding:12px 20px;text-decoration:none;border-radius:6px}
.card{background:#fff;padding:25px;margin:30px 0;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.1)}