Add Base

SRC/main.js

@@ -0,0 +1,16 @@
+function toggleSidebar() {
+    document.getElementById('sidebar').classList.toggle('open');
+}
+
+function showLayer(layerId) {
+    document.querySelectorAll('.layer').forEach(layer => {
+        layer.classList.remove('active');
+    });
+    
+    document.getElementById('layer-' + layerId).classList.add('active');
+    
+    toggleSidebar();
+}
+
+async function fetchData() {
+}