diff --git a/apps/web/src/index.css b/apps/web/src/index.css
index 9416381a2..79dca83e6 100644
--- a/apps/web/src/index.css
+++ b/apps/web/src/index.css
@@ -162,6 +162,10 @@
   --sumi-duration-slow:    300ms;
   --sumi-duration-slower:  500ms;
 
+  /* Aliases for components using legacy var names */
+  --duration-fast:   var(--sumi-duration-fast);
+  --duration-normal: var(--sumi-duration-normal);
+
   --sumi-ease-default: cubic-bezier(0.25, 0.1, 0.25, 1);
   --sumi-ease-out:     cubic-bezier(0.33, 1, 0.68, 1);
   --sumi-ease-in:      cubic-bezier(0.32, 0, 0.67, 0);