add a collapsed menu icon here to allow the nav bar to be optional

index.html

@@ -696,6 +696,24 @@ el: "#vanta-bg",
             backgroundColor: 0x0,
             size: 0.8
         });
+        // Sidebar toggle functionality
+        const sidebar = document.getElementById('sidebar');
+        const toggleBtn = document.getElementById('toggle-sidebar');
+        
+        toggleBtn.addEventListener('click', () => {
+            sidebar.classList.toggle('w-16');
+            sidebar.classList.toggle('w-64');
+            
+            if (sidebar.classList.contains('w-16')) {
+                feather.replace();
+                toggleBtn.innerHTML = '<i data-feather="chevron-right" class="w-5 h-5"></i>';
+                feather.replace();
+            } else {
+                feather.replace();
+                toggleBtn.innerHTML = '<i data-feather="chevron-left" class="w-5 h-5"></i>';
+                feather.replace();
+            }
+        });
 
         // Feather icons
         feather.replace();