body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      margin: 0;
      padding: 20px;
      background-color: #f5f5f5;
      color: #333;
    }
    .container {
      max-width: 1000px;
      margin: 0 auto;
      background-color: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
      padding: 20px;
    }
    h1 {
      text-align: center;
      color: #2c3e50;
      margin-bottom: 30px;
    }
    .input-group {
      display: flex;
      margin-bottom: 20px;
    }
    #url-input {
      flex: 1;
      padding: 12px 15px;
      border: 1px solid #ddd;
      border-radius: 4px 0 0 4px;
      font-size: 16px;
      outline: none;
    }
    #url-input:focus {
      border-color: #3498db;
    }
    #scrape-btn {
      padding: 12px 20px;
      background-color: #3498db;
      color: white;
      border: none;
      border-radius: 0 4px 4px 0;
      cursor: pointer;
      font-size: 16px;
      transition: background-color 0.3s;
    }
    #scrape-btn:hover {
      background-color: #2980b9;
    }
    .code-container {
      position: relative;
      margin-top: 20px;
      border: 1px solid #ddd;
      border-radius: 4px;
      overflow: hidden;
    }
    .code-header {
      background-color: #f1f1f1;
      padding: 8px 15px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid #ddd;
    }
    .copy-btn {
      background: none;
      border: none;
      color: #555;
      cursor: pointer;
      display: flex;
      align-items: center;
      font-size: 14px;
      padding: 5px 10px;
      border-radius: 4px;
      transition: all 0.3s;
    }
    .copy-btn:hover {
      background-color: rgba(0, 0, 0, 0.1);
      color: #333;
    }
    .code-content {
      display: flex;
      overflow: auto;
      max-height: 500px;
      background-color: #282c34;
      color: #abb2bf;
    }
    .line-numbers {
      padding: 10px;
      text-align: right;
      user-select: none;
      background-color: #21252b;
      color: #5c6370;
      border-right: 1px solid #3b4048;
    }
    #output {
      flex: 1;
      padding: 10px;
      margin: 0;
      white-space: pre;
      overflow-x: auto;
      font-family: 'Consolas', 'Monaco', monospace;
      tab-size: 2;
    }
    .loading {
      display: none;
      text-align: center;
      padding: 20px;
      color: #555;
    }
    .error {
      color: #e74c3c;
      padding: 15px;
      background-color: #fdecea;
      border-radius: 4px;
      margin-top: 20px;
      display: none;
    }