diff --git a/public/router.js b/public/router.js
index 011a0a9..fa2e72b 100644
--- a/public/router.js
+++ b/public/router.js
@@ -521,7 +521,7 @@ function renderAppShell(container) {
   moreBtn.setAttribute('aria-label', t('nav.more'));
   moreBtn.setAttribute('aria-expanded', 'false');
   const moreBtnIcon = document.createElement('i');
-  moreBtnIcon.dataset.lucide = 'grid-2x2';
+  moreBtnIcon.dataset.lucide = 'ellipsis';
   moreBtnIcon.className = 'nav-item__icon';
   moreBtnIcon.setAttribute('aria-hidden', 'true');
   const moreBtnLabel = document.createElement('span');
diff --git a/public/styles/layout.css b/public/styles/layout.css
index a7fa983..434d458 100755
--- a/public/styles/layout.css
+++ b/public/styles/layout.css
@@ -676,7 +676,7 @@
 }
 
 /* Tooltip für collapsed Sidebar (nur Icons sichtbar bei 1024–1439px) */
-@media (min-width: 1024px) and (max-width: 1439px) {
+@media (min-width: 1024px) and (max-width: 1279px) {
   .nav-sidebar .nav-item {
     overflow: visible;
   }
@@ -710,7 +710,7 @@
 /* ================================================================
  * Sidebar Expanded (≥ 1280px) - Labels sichtbar
  * ================================================================ */
-@media (min-width: 1440px) {
+@media (min-width: 1280px) {
   :root {
     --sidebar-width: var(--sidebar-width-expanded);
   }