.pwc-form{max-width:500px;margin:20px auto;display:flex;gap:10px}.pwc-form input{flex:1;padding:12px}.pwc-form button{padding:12px 18px;background:#104fe8;color:#fff;border:0;cursor:pointer}.pwc-result{max-width:500px;margin:20px auto;padding:20px;border-radius:8px}.valid{background:#eef9ef;border:1px solid #4caf50}.invalid{background:#fff1f1;border:1px solid #f44336}