.ctf-box{background:#fff;padding:20px;border-radius:12px;box-shadow:0 5px 20px rgba(0,0,0,.05)}
.ctf-package{display:block;padding:10px;border:1px solid #ddd;margin-bottom:10px;border-radius:8px;cursor:pointer}
.ctf-row input{width:32%;margin-right:1%}
.ctf-btn{width:100%;background:#3b71fe;color:#fff;border:none;padding:14px;border-radius:30px;font-size:16px}
#ctf-guests input{margin-top:6px;width:100%}