/* Custom styles for loading state */
.btn-loading {
    position: relative;
  }
  .btn-loading .spinner-border {
    width: 1rem;
    height: 1rem;
  }
  .alert {
    margin-bottom: 1rem;
    border-radius: 5px;
  }
  .form-group.loading input {
    opacity: 0.7;
  }

  /* Estilos para as tabs */
  .auth-tabs {
    display: flex;
    border-bottom: 2px solid #e9ecef;
    margin-bottom: 30px;
  }

  .auth-tab {
    flex: 1;
    text-align: center;
    padding: 15px;
    background: #f8f9fa;
    border: none;
    color: #6c757d;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
  }

  .auth-tab.active {
    background: #fff;
    color: #1967d2;
    border-bottom: 2px solid #1967d2;
    margin-bottom: -2px;
  }

  .auth-tab:hover {
    color: #495057;
    text-decoration: none;
  }

  .auth-content {
    display: none;
  }

  .auth-content.active {
    display: block;
  }

  /* Melhorar aparência do upload de arquivo */
  .file-upload-wrapper {
    position: relative;
    overflow: hidden;
    display: inline-block;
    width: 100%;
  }

  .file-upload-input {
    position: absolute;
    left: -9999px;
  }

  .file-upload-label {
    cursor: pointer;
    display: block;
    padding: 12px 15px;
    border: 2px dashed #ddd;
    border-radius: 5px;
    text-align: center;
    transition: all 0.3s ease;
    background: #f8f9fa;
  }

  .file-upload-label:hover {
    border-color: #1967d2;
    background: #fff;
  }

  .file-selected {
    border-color: #28a745;
    background: #f8fff9;
    color: #28a745;
  }

  /* Responsividade */
  @media (max-width: 768px) {
    .auth-tabs {
      flex-direction: column;
    }
    
    .auth-tab {
      border-radius: 0;
    }
  }