diff --git a/assets/views/base.html b/assets/views/base.html
index 1127682..5685ec6 100644
--- a/assets/views/base.html
+++ b/assets/views/base.html
@@ -48,6 +48,12 @@
         if (!v) return 0;
         return v.split(',').reduce(function (s, e) { return s + (parseInt(e.split(':')[1]) || 0) }, 0);
       }
+      // True while any other navbar menu (profile / settings / mobile / category
+      // toggle) is open — those triggers expose aria-expanded="true". Used to
+      // suppress the cart hover preview so menus don't stack/overlap.
+      function anyMenuOpen() {
+        return !!document.querySelector('header [aria-expanded="true"]');
+      }
       // Show a floating toast notification. Usage: toast('Saved').
       // Bridges to the vendored Penguin UI toast component, which listens for a
       // `notify` event with { variant, title, message }.
@@ -113,7 +119,7 @@
             x-on:keydown.esc.window="isOpen = false"
             class="relative">
             <a href="/cart" data-nav="/cart" hx-boost="false"
-              x-on:mouseenter="isOpen = true"
+              x-on:mouseenter="if (!anyMenuOpen()) isOpen = true"
               x-data="{ count: 0 }"
               x-init="count = cartCount(); ['htmx:afterSwap', 'htmx:afterRequest'].forEach(function (e) { window.addEventListener(e, function () { count = cartCount() }) })"
               hx-get="/partials/cart" hx-trigger="mouseenter delay:150ms" hx-target="#cart-preview-body" hx-swap="innerHTML"