Initial commit: igny8 project

frontend/src/layout/Backdrop.tsx

@@ -0,0 +1,16 @@
+import { useSidebar } from "../context/SidebarContext";
+
+const Backdrop: React.FC = () => {
+  const { isMobileOpen, toggleMobileSidebar } = useSidebar();
+
+  if (!isMobileOpen) return null;
+
+  return (
+    <div
+      className="fixed inset-0 z-40 bg-gray-900/50 lg:hidden"
+      onClick={toggleMobileSidebar}
+    />
+  );
+};
+
+export default Backdrop;