body {
    font-family: Arial, sans-serif;
    margin: 20px;
  }
  
  .controls {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
  }
  
  .control {
    width: 45%;
  }
  
  #switch-button {
    margin-bottom: 20px;
  }
  
  #chart {
    width: 100%;
    height: 600px;
  }
  
  #summary-stats {
    margin-top: 20px;
  }