body{font-family:sans-serif;padding:10px}.container{max-width:600px;margin:auto;background-color:#f9f9f9;border:1px solid #ccc;padding:20px;border-radius:5px}.form-group{margin-bottom:15px}label{font-weight:700;display:block;margin-bottom:5px}h1{font-size:24px;margin-bottom:20px;text-align:center}input,select{width:100%;padding:8px;box-sizing:border-box}.hidden{display:none}.confirm-row{display:flex;align-items:center;margin-bottom:15px}.confirm-row label{width:150px;font-weight:700;margin-right:10px}.confirm-row span{flex:1;padding:8px 0}.button-group{text-align:center;margin-bottom:15px}button.submit{background-color:#007bff;color:#fff;border:none;padding:10px 15px;border-radius:3px;cursor:pointer}button.back{background-color:#6c757d;color:#fff;border:none;padding:10px 15px;border-radius:3px;cursor:pointer;margin-left:10px}button.back:hover,button.submit:hover{opacity:.8}.error{color:red;font-size:14px}