Update task task-76

backlog/tasks/task-76 - Fix-dual-menu-visibility-on-desktop.md

@@ -1,9 +1,11 @@
 ---
 id: task-76
 title: Fix dual menu visibility on desktop
-status: To Do
-assignee: []
+status: Done
+assignee:
+  - '@assistant'
 created_date: '2025-07-30'
+updated_date: '2025-07-30'
 labels: []
 dependencies: []
 ---
@@ -19,3 +21,28 @@ Both the UserMenu dropdown and hamburger menu were showing on desktop screens si
 - [ ] Mobile menu functionality works correctly on mobile devices
 - [ ] No JavaScript errors in console
 - [ ] Responsive behavior works correctly on screen resize
+
+## Implementation Notes
+
+Successfully fixed the dual menu issue on desktop screens.
+
+**Root Cause:**
+- Mobile menu container used 'md:hidden' class which wasn't sufficient to prevent JavaScript from showing the menu on desktop
+- JavaScript event handlers weren't screen-size aware, allowing mobile menu interactions on desktop
+
+**Fixes Implemented:**
+1. **Enhanced CSS Classes:** Changed 'md:hidden' to 'md:!hidden' to force-hide mobile menu on desktop with !important
+2. **Screen-Size Aware JavaScript:** Added window.innerWidth checks (≥768px) to prevent mobile menu interactions on desktop
+3. **Automatic Cleanup:** Added resize event listener to close mobile menu when screen becomes desktop-sized
+4. **Consistent Event Handling:** Updated all mobile menu handlers (click, click-outside, escape key) to only work on mobile screens
+
+**Technical Details:**
+- Mobile menu is now force-hidden on desktop screens using 'md:!hidden' class
+- All JavaScript interactions check screen width (768px breakpoint) before executing
+- Window resize handler automatically switches between mobile and desktop layouts
+- No functionality lost while preventing the dual menu issue
+
+**Files Modified:**
+- app/views/layouts/application.html.erb: Enhanced mobile menu CSS and JavaScript logic
+
+All acceptance criteria met - hamburger menu only shows on mobile, desktop UserMenu works properly, and responsive behavior is correct.