@media (max-width: 768px) { 
      .grupos-grid { grid-template-columns: 1fr; } 
      .nav-buttons { flex-wrap: wrap; }
      .btn { font-size: 12px; padding: 8px 15px; }
    }
.type-filter-btn, #searchButton, .category-item, #showMoreCategories, .card-button, .pagination button, .btn {
        -webkit-tap-highlight-color: transparent;
        outline: none;
    }