* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      min-height: 100vh;
      padding: 20px;
    }

    main {
      max-width: 1400px;
      margin: 0 auto;
    }

    h1 {
      color: white;
      text-align: center;
      margin-bottom: 30px;
      font-size: 2.5rem;
    }

    .container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 20px;
    }

    .card {
      background: white;
      border-radius: 12px;
      padding: 25px;
      box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    }

    .card.full-width {
      grid-column: 1 / -1;
    }

    h2 {
      color: #333;
      margin-bottom: 20px;
      font-size: 1.5rem;
      border-bottom: 2px solid #667eea;
      padding-bottom: 10px;
    }

    label {
      display: block;
      color: #555;
      font-weight: 600;
      margin-bottom: 5px;
      margin-top: 15px;
    }

    input, select, textarea {
      width: 100%;
      padding: 12px;
      border: 2px solid #e0e0e0;
      border-radius: 8px;
      font-size: 14px;
      transition: border-color 0.3s;
    }

    input:focus, select:focus, textarea:focus {
      outline: none;
      border-color: #667eea;
    }

    textarea {
      font-family: 'Courier New', monospace;
      resize: vertical;
      min-height: 100px;
    }

    button {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: white;
      border: none;
      padding: 12px 24px;
      border-radius: 8px;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      margin-top: 15px;
      margin-right: 10px;
      transition: transform 0.2s, box-shadow 0.2s;
    }

    button:hover {
      transform: translateY(-2px);
      box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
    }

    button:active {
      transform: translateY(0);
    }

    button.secondary {
      background: #6c757d;
    }

    button.danger {
      background: #dc3545;
    }

    button.success {
      background: #28a745;
    }

    pre {
      background: #f8f9fa;
      border: 1px solid #dee2e6;
      border-radius: 8px;
      padding: 15px;
      overflow-x: auto;
      font-size: 13px;
      max-height: 300px;
      overflow-y: auto;
    }

    .table-container {
      overflow-x: auto;
      margin-top: 20px;
    }

    table {
      width: 100%;
      border-collapse: collapse;
      background: white;
      border-radius: 8px;
      overflow: hidden;
    }

    th {
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      color: white;
      padding: 12px;
      text-align: left;
      font-weight: 600;
    }

    td {
      padding: 12px;
      border-bottom: 1px solid #e0e0e0;
    }

    tr:hover {
      background: #f8f9fa;
    }

    .crud-controls {
      display: flex;
      gap: 10px;
      align-items: center;
      margin-top: 20px;
      flex-wrap: wrap;
    }

    .crud-controls input {
      flex: 1;
      min-width: 200px;
    }

    .status-badge {
      display: inline-block;
      padding: 4px 12px;
      border-radius: 12px;
      font-size: 12px;
      font-weight: 600;
    }

    .status-success {
      background: #d4edda;
      color: #155724;
    }

    .status-error {
      background: #f8d7da;
      color: #721c24;
    }

    .method-badge {
      display: inline-block;
      padding: 4px 8px;
      border-radius: 4px;
      font-size: 11px;
      font-weight: 600;
      margin-right: 8px;
    }

    .method-get { background: #28a745; color: white; }
    .method-post { background: #007bff; color: white; }
    .method-put { background: #ffc107; color: #333; }
    .method-delete { background: #dc3545; color: white; }

    .login-section {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 15px;
    }

    @media (max-width: 768px) {
      .container {
        grid-template-columns: 1fr;
      }
      
      .login-section {
        grid-template-columns: 1fr;
      }
    }