diff --git a/app/layouts/catalog.vue b/app/layouts/catalog.vue
index c82e103..a157975 100644
--- a/app/layouts/catalog.vue
+++ b/app/layouts/catalog.vue
@@ -109,9 +109,9 @@ const localePath = useLocalePath()
 const { t } = useI18n()
 
 // Smooth collapsible header
-// MainNav: h-16 (64px) + border (1px) = 65px
-// SubNav: py-2 (16px) + links (36px) + border (1px) = 53px
-// Total header = 65 + 53 = 118px, SearchBar = 48px
+// MainNav: 64px (h-16)
+// SubNav: 40px (py-2 + links)
+// Total header = 104px, SearchBar = 48px
 const {
   headerOffset,
   searchBarTop,
@@ -120,7 +120,7 @@ const {
   isCollapsed,
   expand,
   collapse
-} = useScrollCollapse(118, 48)
+} = useScrollCollapse(104, 48)
 
 // Mobile view toggle
 const mobileView = ref<'list' | 'map'>('list')