body {
      background-color: #f7f8fa;
      font-family: Arial, sans-serif;
    }
    .navbar {
      background: linear-gradient(145deg, #0d6efd, #6f42c1);
    }
    .navbar a {
      color: white !important;
    }
    .container {
      max-width: 1200px;
    }
    .btn-custom {
      background-color: #00aaff;
      color: white;
    }
    .table th, .table td {
      vertical-align: middle;
    }
    .card-custom {
      background-color: #ffffff;
      box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }
    
    .form_label_code{
        margin-top: auto;
    margin-bottom: auto;
    }