diff --git a/packages/client/ui-sidebar/src/client/SidebarRoot.module.css b/packages/client/ui-sidebar/src/client/SidebarRoot.module.css
index ebb47467af..3013570d16 100644
--- a/packages/client/ui-sidebar/src/client/SidebarRoot.module.css
+++ b/packages/client/ui-sidebar/src/client/SidebarRoot.module.css
@@ -15,6 +15,16 @@
   background: var(--dsw-specific-sidebar-fill);
   color: var(--dsw-alias-label-primary);
   font-size: 14px;
+  /* Scrollbar hides until the pointer is over the sidebar: rebind the
+     ui-theme scrollbar indirection (styles/scrollbar.css) to transparent;
+     the session list's scrollbar-gutter keeps layout stable either way. */
+  --dsh-scrollbar-thumb: transparent;
+  --dsh-scrollbar-thumb-hover: transparent;
+}
+
+.root:hover {
+  --dsh-scrollbar-thumb: var(--dsw-alias-scrollbar-bg-l1);
+  --dsh-scrollbar-thumb-hover: var(--dsw-alias-scrollbar-hover-l1);
 }
 
 /* Rail geometry (figma rail spec): 36x36 control boxes centered in the 56px
diff --git a/packages/client/ui-workspace/src/client/WorkspaceBrowser.module.css b/packages/client/ui-workspace/src/client/WorkspaceBrowser.module.css
index 970fc64e8b..f4238b0360 100644
--- a/packages/client/ui-workspace/src/client/WorkspaceBrowser.module.css
+++ b/packages/client/ui-workspace/src/client/WorkspaceBrowser.module.css
@@ -207,7 +207,9 @@
   flex: 1;
   min-height: 0;
   overflow-y: auto;
-  padding-bottom: 12px;
+  /* Clears the 72px bottom fade overlay: at scroll end the last row sits
+     above the gradient instead of under it. */
+  padding-bottom: 48px;
   /* Row trailing content (the relative time, and the hover action buttons
      that replace it) sits flush against the row's 8px right padding, so an
      overlaid scrollbar covers it. Reserving the gutter keeps the bar beside