diff --git a/src/frontend/styles.css b/src/frontend/styles.css
index 2486649..6026c13 100644
--- a/src/frontend/styles.css
+++ b/src/frontend/styles.css
@@ -1,3 +1,12 @@
+/* Default theme fallback for when JS is disabled */
+html {
+    --bg-primary: #eff1f5;
+    --bg-secondary: #e6e9f0;
+    --text-primary: #4c4f69;
+    --text-secondary: #6c6f85;
+    --border-color: #dce0e8;
+}
+
 /* Catppuccin Latte - Light theme */
 html[data-theme="latte"] {
     --bg-primary: #eff1f5;