�”„ Restart
            </button>
        </div>
        
        <div class="toolbar-separator"></div>
        
        <div class="toolbar-group">
            <button class="btn" id="btn-save" title="Save Notebook">
                ðŸ’¾ Save
            </button>
            <button class="btn" id="btn-add-cell" title="Add Cell Below">
                âž• Add Cell
            </button>
        </div>
        
        <div class="toolbar-separator"></div>
        
        <div class="toolbar-g