     
                // Show flex containers
                const advancedFlexElements = document.querySelectorAll('.advanced-mode-only-flex');
                advancedFlexElements.forEach(element => {
                    element.style.display = 'flex';
                });
                
                // Show grid containers
                const advancedGridElements = document.querySelectorAll('.advanced-mode-only-grid');
                advancedGridElements.forEach(element => {
                    e