.cbf-container { background:#f8f9fa;padding:20px;border-radius:10px;max-width:600px;margin:auto }
.cbf-step { display:none }
.cbf-step.active { display:block }
input,select,textarea,button { width:100%;margin:10px 0;padding:10px;border:1px solid #ccc;border-radius:5px }
button { background:#28a745;color:#fff;cursor:pointer }
button:hover { background:#218838 }