diff --git a/frontend/src/index.css b/frontend/src/index.css
index 4b09812..6d7d27e 100644
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -75,9 +75,6 @@ html[data-theme="dark"] body {
     var(--bg);
   background-attachment: fixed;
 }
-html[data-theme="dark"] .glass {
-  background: color-mix(in srgb, var(--surface) 66%, transparent);
-}
 
 /* Performance mode (Settings → Appearance) drops the expensive blur + soft shadows. */
 html[data-perf="1"] .glass,