diff --git a/src/app/(dashboard)/layout.tsx b/src/app/(dashboard)/layout.tsx
index fbd1459ac..2f586137d 100644
--- a/src/app/(dashboard)/layout.tsx
+++ b/src/app/(dashboard)/layout.tsx
@@ -11,7 +11,8 @@ export default function Layout({
     <ModuleAvailabilityProvider>
       <div className="flex h-dvh min-h-0 w-full overflow-hidden">
         <AppSidebar />
-        <main className="relative flex h-dvh min-h-0 flex-1 flex-col overflow-hidden bg-background md:ml-[52px]">
+        {/* isolate keeps in-page stacking (logs tab) from covering sidebar flyouts */}
+        <main className="relative isolate flex h-dvh min-h-0 flex-1 flex-col overflow-hidden bg-background md:ml-[52px]">
           <ModuleGuard>{children}</ModuleGuard>
         </main>
         <CommandPalette />
diff --git a/src/components/logs-viewer/LogsDrawer.test.tsx b/src/components/logs-viewer/LogsDrawer.test.tsx
new file mode 100644
index 000000000..15a21ff24
--- /dev/null
+++ b/src/components/logs-viewer/LogsDrawer.test.tsx
@@ -0,0 +1,37 @@
+import { cleanup, render, screen, waitFor } from '@testing-library/react';
+import { afterEach, describe, expect, it, vi } from 'vitest';
+import { LogsDrawer } from './LogsDrawer';
+
+vi.mock('next/navigation', () => ({
+  usePathname: () => '/settings/general',
+}));
+
+vi.mock('@/lib/observability/lokiAvailability.actions', () => ({
+  getLokiAvailability: vi.fn(async () => ({ state: 'unreachable' })),
+}));
+
+vi.mock('@/lib/loki/requests', () => ({
+  getLogsLevels: vi.fn(async () => []),
+  getLogsQueryRange: vi.fn(async () => []),
+  getModules: vi.fn(async () => []),
+}));
+
+afterEach(() => {
+  cleanup();
+});
+
+describe('LogsDrawer', () => {
+  it('keeps the closed-tab trigger below overlay z-index', async () => {
+    render(
+      <main className="relative isolate">
+        <LogsDrawer />
+      </main>
+    );
+
+    const trigger = await waitFor(() =>
+      screen.getByRole('button', { name: /logs/i })
+    );
+    expect(trigger.className).toMatch(/\bz-20\b/);
+    expect(trigger.className).not.toMatch(/\bz-40\b/);
+  });
+});
diff --git a/src/components/logs-viewer/LogsDrawer.tsx b/src/components/logs-viewer/LogsDrawer.tsx
index f119f1b8b..b2072dd27 100644
--- a/src/components/logs-viewer/LogsDrawer.tsx
+++ b/src/components/logs-viewer/LogsDrawer.tsx
@@ -126,7 +126,7 @@ export function LogsDrawer() {
       <DrawerTrigger asChild>
         <Button
           variant="outline"
-          className="absolute bottom-0 left-4 z-40 h-8 gap-1.5 rounded-t-md rounded-b-none border-b-0 px-3"
+          className="absolute bottom-0 left-4 z-20 h-8 gap-1.5 rounded-t-md rounded-b-none border-b-0 px-3"
         >
           <Logs className="size-4" />
           Logs
diff --git a/src/components/ui/hover-card.test.tsx b/src/components/ui/hover-card.test.tsx
new file mode 100644
index 000000000..badb51128
--- /dev/null
+++ b/src/components/ui/hover-card.test.tsx
@@ -0,0 +1,25 @@
+import { cleanup, render, screen } from '@testing-library/react';
+import { afterEach, describe, expect, it } from 'vitest';
+import { HoverCard, HoverCardContent, HoverCardTrigger } from './hover-card';
+
+afterEach(() => {
+  cleanup();
+});
+
+describe('HoverCard', () => {
+  it('portals content so sidebar flyouts are not trapped in the rail stacking context', () => {
+    const { container } = render(
+      <div className="fixed z-10" data-testid="sidebar">
+        <HoverCard open>
+          <HoverCardTrigger>Settings</HoverCardTrigger>
+          <HoverCardContent>General</HoverCardContent>
+        </HoverCard>
+      </div>
+    );
+
+    const flyout = screen.getByText('General');
+    expect(flyout).toBeInTheDocument();
+    expect(container).not.toContainElement(flyout);
+    expect(document.body).toContainElement(flyout);
+  });
+});
diff --git a/src/components/ui/hover-card.tsx b/src/components/ui/hover-card.tsx
index a6726a428..fe95da532 100644
--- a/src/components/ui/hover-card.tsx
+++ b/src/components/ui/hover-card.tsx
@@ -13,16 +13,18 @@ const HoverCardContent = React.forwardRef<
   React.ElementRef<typeof HoverCardPrimitive.Content>,
   React.ComponentPropsWithoutRef<typeof HoverCardPrimitive.Content>
 >(({ className, align = 'center', sideOffset = 4, ...props }, ref) => (
-  <HoverCardPrimitive.Content
-    ref={ref}
-    align={align}
-    sideOffset={sideOffset}
-    className={cn(
-      'z-50 w-64 rounded-md border bg-popover p-4 text-popover-foreground shadow-md outline-hidden data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2',
-      className
-    )}
-    {...props}
-  />
+  <HoverCardPrimitive.Portal>
+    <HoverCardPrimitive.Content
+      ref={ref}
+      align={align}
+      sideOffset={sideOffset}
+      className={cn(
+        'z-50 w-64 rounded-md border bg-popover p-4 text-popover-foreground shadow-md outline-hidden data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2',
+        className
+      )}
+      {...props}
+    />
+  </HoverCardPrimitive.Portal>
 ));
 HoverCardContent.displayName = HoverCardPrimitive.Content.displayName;
 
diff --git a/src/components/ui/tooltip.test.tsx b/src/components/ui/tooltip.test.tsx
new file mode 100644
index 000000000..70a826781
--- /dev/null
+++ b/src/components/ui/tooltip.test.tsx
@@ -0,0 +1,32 @@
+import { cleanup, render, screen } from '@testing-library/react';
+import { afterEach, describe, expect, it } from 'vitest';
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipProvider,
+  TooltipTrigger,
+} from './tooltip';
+
+afterEach(() => {
+  cleanup();
+});
+
+describe('Tooltip', () => {
+  it('portals content so account labels are not trapped in the rail stacking context', () => {
+    const { container } = render(
+      <TooltipProvider delayDuration={0}>
+        <div className="fixed z-10" data-testid="sidebar">
+          <Tooltip open>
+            <TooltipTrigger>J</TooltipTrigger>
+            <TooltipContent>jordan</TooltipContent>
+          </Tooltip>
+        </div>
+      </TooltipProvider>
+    );
+
+    const label = screen.getByRole('tooltip', { name: 'jordan' });
+    expect(label).toBeInTheDocument();
+    expect(container).not.toContainElement(label);
+    expect(document.body).toContainElement(label);
+  });
+});
diff --git a/src/components/ui/tooltip.tsx b/src/components/ui/tooltip.tsx
index 9799dbeb9..85b9dcbca 100644
--- a/src/components/ui/tooltip.tsx
+++ b/src/components/ui/tooltip.tsx
@@ -22,15 +22,17 @@ const TooltipContent = React.forwardRef<
   React.ElementRef<typeof TooltipPrimitive.Content>,
   React.ComponentPropsWithoutRef<typeof TooltipPrimitive.Content>
 >(({ className, sideOffset = 4, ...props }, ref) => (
-  <TooltipPrimitive.Content
-    ref={ref}
-    sideOffset={sideOffset}
-    className={cn(
-      'z-50 shadow-md rounded-md overflow-hidden bg-popover px-2.5 py-1 text-sm font-normal text-popover-foreground animate-in fade-in-0 zoom-in-95 data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=closed]:zoom-out-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2',
-      className
-    )}
-    {...props}
-  />
+  <TooltipPrimitive.Portal>
+    <TooltipPrimitive.Content
+      ref={ref}
+      sideOffset={sideOffset}
+      className={cn(
+        'z-50 shadow-md rounded-md overflow-hidden bg-popover px-2.5 py-1 text-sm font-normal text-popover-foreground animate-in fade-in-0 zoom-in-95 data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=closed]:zoom-out-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2',
+        className
+      )}
+      {...props}
+    />
+  </TooltipPrimitive.Portal>
 ));
 TooltipContent.displayName = TooltipPrimitive.Content.displayName;