diff --git a/packages/dashboard/app/components/__tests__/GitManagerModal.test.tsx b/packages/dashboard/app/components/__tests__/GitManagerModal.test.tsx
index abddeb8eb9..ac0f842ff7 100644
--- a/packages/dashboard/app/components/__tests__/GitManagerModal.test.tsx
+++ b/packages/dashboard/app/components/__tests__/GitManagerModal.test.tsx
@@ -3417,8 +3417,9 @@ describe("GitManagerModal", () => {
 
       const navItemRules = getRuleBlocks(mobile768, ".gm-nav-item");
       expect(navItemRules).toHaveLength(1);
+      // Mobile tabs are compact ICON-ONLY in one scrolling row: non-shrinking via flex:0 0 auto + intrinsic width:auto (overrides the base .gm-nav-item width:100% that otherwise made one tab fill the row).
       expect(navItemRules[0]).toContain("flex: 0 0 auto;");
-      expect(navItemRules[0]).toContain("min-height: calc(var(--space-xl) + var(--space-sm));");
+      expect(navItemRules[0]).toContain("width: auto;");
 
       expect(mobile720).not.toContain(".gm-sidebar");
       expect(mobile720).not.toContain(".gm-nav-item");
diff --git a/packages/dashboard/app/components/__tests__/MailboxView.test.tsx b/packages/dashboard/app/components/__tests__/MailboxView.test.tsx
index 9f30123ac7..43be43816b 100644
--- a/packages/dashboard/app/components/__tests__/MailboxView.test.tsx
+++ b/packages/dashboard/app/components/__tests__/MailboxView.test.tsx
@@ -1884,13 +1884,14 @@ describe("MailboxView", () => {
       const resizeHandleBlockMatch = css.match(/\.mailbox-view\s+\.mailbox-split-resize-handle\s*\{([^}]*)\}/);
       expect(resizeHandleBlockMatch).toBeTruthy();
       const resizeHandleBlock = resizeHandleBlockMatch![1];
-      expect(resizeHandleBlock).toContain("width: var(--space-xs);");
+      // FNXC:Mailbox 2026-06-22-18:20: handle mirrors the Chat sidebar divider — hit area var(--space-sm), transparent until hover, centered var(--space-xs) line.
+      expect(resizeHandleBlock).toContain("width: var(--space-sm);");
       expect(resizeHandleBlock).toContain("cursor: col-resize;");
-      expect(resizeHandleBlock).toContain("background: color-mix(in srgb, var(--border) 70%, transparent);");
+      expect(resizeHandleBlock).toContain("background: transparent;");
 
       const resizeHandleTargetBlockMatch = css.match(/\.mailbox-view\s+\.mailbox-split-resize-handle::before\s*\{([^}]*)\}/);
       expect(resizeHandleTargetBlockMatch).toBeTruthy();
-      expect(resizeHandleTargetBlockMatch![1]).toContain("width: var(--space-sm);");
+      expect(resizeHandleTargetBlockMatch![1]).toContain("width: var(--space-xs);");
       expect(css).toMatch(/\.mailbox-view\s+\.mailbox-split-resize-handle:hover::before,\s*\n\.mailbox-view\s+\.mailbox-split-resize-handle:active::before\s*\{[^}]*background:\s*color-mix\(in srgb,\s*var\(--todo\)\s*35%,\s*transparent\);[^}]*\}/);
 
       const splitEmptyBlockMatch = css.match(/\.mailbox-view\s+\.mailbox-split-empty\s*\{([^}]*)\}/);