function toggleSidebar() { const sb = document.getElementById('sidebar'); const ov = document.getElementById('sidebarOverlay'); const open = sb.classList.toggle('open'); ov.classList.toggle('active', open); document.body.style.overflow = open ? 'hidden' : ''; } function closeSidebar() { document.getElementById('sidebar').classList.remove('open'); document.getElementById('sidebarOverlay').classList.remove('active'); document.body.style.overflow = ''; }