diff --git a/src/main/windows/createMainWindow.ts b/src/main/windows/createMainWindow.ts
index 5d69ad8..73fbaea 100644
--- a/src/main/windows/createMainWindow.ts
+++ b/src/main/windows/createMainWindow.ts
@@ -21,6 +21,9 @@ export function createMainWindow(): BrowserWindowType {
     }),
     backgroundColor: '#09090b',
     titleBarStyle: 'hidden',
+    ...(process.platform === 'darwin' && {
+      trafficLightPosition: { x: 16, y: 22 },
+    }),
     titleBarOverlay: {
       color: '#09090b',
       symbolColor: '#a1a1aa',
diff --git a/src/renderer/components/Sidebar.tsx b/src/renderer/components/Sidebar.tsx
index ad22a65..7506d26 100644
--- a/src/renderer/components/Sidebar.tsx
+++ b/src/renderer/components/Sidebar.tsx
@@ -1,5 +1,6 @@
 import { useEffect, useMemo, useRef, useState } from 'react';
 import appIconUrl from '../../../assets/icons/icon.png';
+import { isMac } from '@renderer/lib/platform';
 import {
   AlertTriangle,
   Archive,
@@ -581,7 +582,7 @@ export function Sidebar({
   return (
     <div className="flex h-full flex-col">
       {/* Header — extra top padding clears the title bar overlay zone */}
-      <div className="drag-region flex items-center justify-between border-b border-[var(--color-border-subtle)] px-4 pb-3 pt-3">
+      <div className={`drag-region flex items-center justify-between border-b border-[var(--color-border-subtle)] pb-3 pt-3 pr-4 ${isMac ? 'pl-20' : 'pl-4'}`}>
         <div className="flex items-center gap-2.5">
           <img alt="aryx" className="size-8 rounded-xl" src={appIconUrl} />
           <div>
diff --git a/src/renderer/lib/keyboardShortcuts.ts b/src/renderer/lib/keyboardShortcuts.ts
index c26e1ec..249b60b 100644
--- a/src/renderer/lib/keyboardShortcuts.ts
+++ b/src/renderer/lib/keyboardShortcuts.ts
@@ -1,4 +1,4 @@
-const isMac = navigator.platform.startsWith('Mac');
+import { isMac } from '@renderer/lib/platform';
 
 /** Platform-aware modifier key label. */
 export const MOD = isMac ? '⌘' : 'Ctrl';
diff --git a/src/renderer/lib/platform.ts b/src/renderer/lib/platform.ts
new file mode 100644
index 0000000..954617b
--- /dev/null
+++ b/src/renderer/lib/platform.ts
@@ -0,0 +1 @@
+export const isMac = navigator.platform.startsWith('Mac');