diff --git a/packages/frontend/src/shell/DashboardCalendarTab.module.css b/packages/frontend/src/shell/DashboardCalendarTab.module.css
index 49582e6..75e3f97 100644
--- a/packages/frontend/src/shell/DashboardCalendarTab.module.css
+++ b/packages/frontend/src/shell/DashboardCalendarTab.module.css
@@ -67,13 +67,15 @@
   display: flex;
   align-items: center;
   gap: 1rem;
-  flex-wrap: wrap;
+  flex-wrap: nowrap;    /* Toolbar bleibt immer einzeilig */
+  min-width: 0;
 }
 
 .navGroup {
   display: flex;
   align-items: center;
   gap: 0.25rem;
+  flex-shrink: 0;      /* Navigationsbuttons nie verkleinern */
 }
 
 .navBtn {
@@ -116,15 +118,19 @@
 
 .rangeLabel {
   flex: 1;
+  min-width: 0;          /* Darf schrumpfen, nie viewToggle verdrängen */
   font-size: 1rem;
   font-weight: 600;
   color: var(--color-text);
   margin: 0;
   white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
 }
 
 .viewToggle {
   display: flex;
+  flex-shrink: 0;        /* Immer vollständig sichtbar */
   border: 1px solid var(--color-border);
   border-radius: var(--radius-sm);
   overflow: hidden;
diff --git a/packages/frontend/src/shell/DashboardEmailTab.module.css b/packages/frontend/src/shell/DashboardEmailTab.module.css
index c8e2bde..81e94d4 100644
--- a/packages/frontend/src/shell/DashboardEmailTab.module.css
+++ b/packages/frontend/src/shell/DashboardEmailTab.module.css
@@ -122,7 +122,7 @@
   gap: 1rem;
   align-items: flex-start;
   min-height: 300px;
-  max-width: 50%;
+  max-width: 70%;
 }
 
 /* ── Ordner-Baum (Sidebar) ── */