.recorder-box {
    max-width: 600px;
    margin: 50px auto;
    padding: 30px;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
  }
  .btn-recording {
    background-color: #dc3545;
    color: #fff;
  }
  .audio-player {
    width: 100%;
    margin-top: 15px;
  }