diff --git a/frontend/src/routes/app/+layout.svelte b/frontend/src/routes/app/+layout.svelte
index 2aef877..9964432 100644
--- a/frontend/src/routes/app/+layout.svelte
+++ b/frontend/src/routes/app/+layout.svelte
@@ -154,7 +154,7 @@
 
       #RightColumn {
         position: relative;
-        z-index: 1;
+        z-index: var(--z-right-column);
       }
 
       #MiddleColumn {