.audio-player-container {
      max-width: 600px;
      margin: 20px auto;
      padding: 20px 30px;
      background: #f5f5f5;
      border: 2px solid #ccc;
      border-radius: 10px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }

    .progress-label {
      text-align: center;
      font-size: 0.9em;
      color: #333;
      margin-bottom: 8px;
      font-weight: 500;
    }

    .audio-element {
      display: none;
    }

    .progress-bar-container {
      width: 100%;
      height: 8px;
      background: #ddd;
      border-radius: 4px;
      margin-bottom: 20px;
      overflow: hidden;
      cursor: pointer;
      border: 1px solid #bbb;
    }

    .progress-fill {
      height: 100%;
      background: #667eea;
      width: 0%;
      transition: width 0.1s ease;
    }

    .main-controls {
      display: flex;
      justify-content: center;
      gap: 20px;
      margin-bottom: 15px;
    }

    .control-btn {
      background: white;
      border: 2px solid #333;
      color: #333;
      padding: 8px 24px;
      border-radius: 4px;
      cursor: pointer;
      font-size: 0.95em;
      font-weight: 600;
      transition: all 0.2s ease;
      min-width: 80px;
    }

    .control-btn:hover {
      background: #f0f0f0;
      transform: translateY(-1px);
    }

    .control-btn:active {
      transform: translateY(0);
      background: #e0e0e0;
    }

    .volume-controls {
      display: flex;
      justify-content: center;
      gap: 15px;
    }

    .volume-btn {
      background: white;
      border: 2px solid #333;
      color: #333;
      padding: 6px 20px;
      border-radius: 4px;
      cursor: pointer;
      font-size: 0.9em;
      font-weight: 600;
      transition: all 0.2s ease;
      min-width: 70px;
    }

    .volume-btn:hover {
      background: #f0f0f0;
      transform: translateY(-1px);
    }

    .volume-btn:active {
      transform: translateY(0);
      background: #e0e0e0;
    }

    .status-message {
      text-align: center;
      margin-top: 15px;
      font-size: 0.85em;
      color: #666;
      min-height: 20px;
    }

    .error-message {
      color: #d32f2f;
      font-weight: 600;
    }

    @media (max-width: 600px) {
      .audio-player-container {
        margin: 10px;
        padding: 15px 20px;
      }

      .main-controls, .volume-controls {
        gap: 10px;
      }

      .control-btn {
        min-width: 70px;
        padding: 8px 16px;
        font-size: 0.85em;
      }

      .volume-btn {
        min-width: 60px;
        padding: 6px 12px;
        font-size: 0.8em;
      }
    }