body{font-family:Arial,sans-serif;background:#f4f4f4;max-width:900px;margin:auto;padding:20px}
.card{background:#fff;padding:20px;border-radius:10px;margin:15px 0}
.package{border:1px solid #ccc;padding:12px;margin:8px 0;border-radius:8px}
input,select,textarea{width:100%;padding:10px;margin:5px 0}
button{padding:12px 20px}