* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    min-width: 600px;
  }
  
  .container {
    max-width: 800px;
    margin: 20px auto;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
  }
  
  header {
    background-color: #2196F3;
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  h1 {
    font-size: 24px;
    font-weight: bold;
  }
  
  .back-btn {
    color: white;
    text-decoration: none;
    background-color: rgba(255, 255, 255, 0.2);
    padding: 8px 15px;
    border-radius: 15px;
    font-size: 14px;
    transition: background-color 0.2s ease;
  }
  
  .back-btn:hover {
    background-color: rgba(255, 255, 255, 0.3);
  }
  
  main {
    padding: 20px;
  }
  
  h2 {
    color: #333;
    font-size: 18px;
    margin-bottom: 15px;
  }
  
  .primary-btn {
    background-color: #2196F3;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    transition: background-color 0.2s ease;
  }
  
  .primary-btn:hover {
    background-color: #1976D2;
  }
  
  .secondary-btn {
    background-color: #e0e0e0;
    color: #333;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s ease;
  }
  
  .secondary-btn:hover {
    background-color: #d0d0d0;
  }
  
  .actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
  }
  
  footer {
    background-color: #f5f5f5;
    padding: 15px;
    text-align: center;
    color: #666;
    font-size: 12px;
    border-top: 1px solid #eee;
  }
  
  .progress-bar {
    width: 100%;
    height: 20px;
    background-color: #e0e0e0;
    border-radius: 10px;
    overflow: hidden;
    margin: 20px 0;
  }
  
  .progress {
    height: 100%;
    background-color: #2196F3;
    width: 0;
    transition: width 0.3s ease;
  }
  
  /* Responsive adjustments */
  @media (max-width: 650px) {
    .container {
      margin: 0;
      border-radius: 0;
    }
    
    header {
      flex-direction: column;
      align-items: flex-start;
    }
    
    .back-btn {
      margin-top: 10px;
    }
    
    .actions {
      flex-direction: column;
    }
    
    .primary-btn, .secondary-btn {
      width: 100%;
    }
  }