diff --git a/package.json b/package.json
index d69b875..8f5a1f1 100644
--- a/package.json
+++ b/package.json
@@ -12,14 +12,16 @@
   "dependencies": {
     "@base-ui-components/react": "^1.0.0-beta.3",
     "@radix-ui/react-slot": "^1.2.3",
+    "@tabler/icons-react": "^3.35.0",
     "@tailwindcss/vite": "^4.1.13",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
-    "lucide-react": "^0.543.0",
+    "lucide-react": "^0.544.0",
     "react": "^19.1.1",
     "react-dom": "^19.1.1",
     "tailwind-merge": "^3.3.1",
     "tailwindcss": "^4.1.13",
+    "wouter": "^3.7.1",
     "zustand": "^5.0.8"
   },
   "devDependencies": {
diff --git a/src/components/PageContainer.tsx b/src/components/PageContainer.tsx
index 3ecee3a..8d616a5 100644
--- a/src/components/PageContainer.tsx
+++ b/src/components/PageContainer.tsx
@@ -1,12 +1,22 @@
+import { Route, Switch } from 'wouter';
+
 import Topbar from './Topbar';
 
+import Home from './pages/Home';
+import Dashboard from './pages/Dashboard';
+import Todos from './pages/Todos';
+import NotFound from './pages/default/NotFound';
+
 function PageContainer() {
   return (
     <div className="flex flex-col flex-1">
       <Topbar />
-      <div className="p-4">
-        <h1 className="text-2xl font-bold">Main Content</h1>
-      </div>
+      <Switch>
+        <Route path="/" component={Home} />
+        <Route path="/dashboard" component={Dashboard} />
+        <Route path="/todos" component={Todos} />
+        <Route component={NotFound} />
+      </Switch>
     </div>
   );
 }
diff --git a/src/components/Sidebar.tsx b/src/components/Sidebar.tsx
index 39f93bd..154f73a 100644
--- a/src/components/Sidebar.tsx
+++ b/src/components/Sidebar.tsx
@@ -1,7 +1,40 @@
+import { Button } from '@/components/ui/button';
+import { useLocation, Link } from 'wouter';
+import {
+  IconHome,
+  IconCalendarWeekFilled,
+  IconLayoutCollage,
+  IconCheckupList,
+} from '@tabler/icons-react';
+
+// TODO: Add Sidebar Items(Pages, etc...) to Zustand Store
+export const items = [
+  { name: 'Home', href: '/', icon: IconHome },
+  { name: 'Dashboard', href: '/dashboard', icon: IconLayoutCollage },
+  { name: 'Todos', href: '/todos', icon: IconCheckupList },
+  { name: 'Calendar', href: '/calendar', icon: IconCalendarWeekFilled },
+];
+
 function Sidebar() {
+  const [location] = useLocation();
   return (
-    <nav className="flex justify-center min-w-[240px] max-w-[480px] bg-sidebar border">
-      <p>Sidebar</p>
+    <nav className="flex flex-col min-w-[240px] max-w-[480px] bg-sidebar border">
+      <div className="flex flex-col m-2 gap-2">
+        <p className="text-muted-foreground text-sm font-bold pl-2">Menus</p>
+        {items.map((item) => (
+          <Button
+            asChild
+            size="sm"
+            key={item.name}
+            variant={location === item.href ? 'secondary' : 'ghost'}
+            className="justify-start"
+          >
+            <Link href={item.href}>
+              <item.icon /> {item.name}
+            </Link>
+          </Button>
+        ))}
+      </div>
     </nav>
   );
 }
diff --git a/src/components/Topbar.tsx b/src/components/Topbar.tsx
index 88733d3..f6901d5 100644
--- a/src/components/Topbar.tsx
+++ b/src/components/Topbar.tsx
@@ -1,9 +1,15 @@
+import { Button } from '@/components/ui/button';
+import { items } from './Sidebar';
+import { useLocation } from 'wouter';
+
 function Topbar() {
+  const [location] = useLocation();
   return (
     <div className="flex bg-sidebar p-2 gap-2 border-t border-r border-b border-l-0">
-      <span>item 1</span>
-      <span>item 2</span>
-      <span>item 3</span>
+      <Button variant="ghost" size="sm" className="font-semibold">
+        {items.find((item) => item.href === location)?.name}
+        {/* TODO: Add Sidebar Items(Pages, etc...) to Zustand Store */}
+      </Button>
     </div>
   );
 }
diff --git a/src/components/pages/Dashboard.tsx b/src/components/pages/Dashboard.tsx
new file mode 100644
index 0000000..38b7203
--- /dev/null
+++ b/src/components/pages/Dashboard.tsx
@@ -0,0 +1,9 @@
+function Dashboard() {
+  return (
+    <div className="p-4">
+      <h1 className="text-2xl font-bold">Dashboard</h1>
+    </div>
+  );
+}
+
+export default Dashboard;
diff --git a/src/components/pages/Home.tsx b/src/components/pages/Home.tsx
new file mode 100644
index 0000000..aaa526f
--- /dev/null
+++ b/src/components/pages/Home.tsx
@@ -0,0 +1,9 @@
+function Home() {
+  return (
+    <div className="p-4">
+      <h1 className="text-2xl font-bold">Home</h1>
+    </div>
+  );
+}
+
+export default Home;
diff --git a/src/components/pages/Todos.tsx b/src/components/pages/Todos.tsx
new file mode 100644
index 0000000..374a37a
--- /dev/null
+++ b/src/components/pages/Todos.tsx
@@ -0,0 +1,9 @@
+function Todos() {
+  return (
+    <div className="p-4">
+      <h1 className="text-2xl font-bold">Todos</h1>
+    </div>
+  );
+}
+
+export default Todos;
diff --git a/src/components/pages/default/NotFound.tsx b/src/components/pages/default/NotFound.tsx
new file mode 100644
index 0000000..1134774
--- /dev/null
+++ b/src/components/pages/default/NotFound.tsx
@@ -0,0 +1,9 @@
+function NotFound() {
+  return (
+    <div className="p-4">
+      <h1 className="text-2xl font-bold">404 - Not Found!</h1>
+    </div>
+  );
+}
+
+export default NotFound;
diff --git a/src/components/ui/button.tsx b/src/components/ui/button.tsx
index faae88b..e0ddef7 100644
--- a/src/components/ui/button.tsx
+++ b/src/components/ui/button.tsx
@@ -9,16 +9,15 @@ const buttonVariants = cva(
   {
     variants: {
       variant: {
-        default:
-          'bg-primary text-primary-foreground shadow-xs hover:bg-primary/90',
+        default: 'bg-primary text-primary-foreground hover:bg-primary/90',
         destructive:
-          'bg-destructive text-white shadow-xs hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60',
+          'bg-destructive text-white hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60',
         outline:
           'border bg-background shadow-xs hover:bg-accent hover:text-accent-foreground dark:bg-input/30 dark:border-input dark:hover:bg-input/50',
         secondary:
-          'bg-secondary text-secondary-foreground shadow-xs hover:bg-secondary/80',
+          'bg-black/10 text-secondary-foreground hover:bg-black/5 dark:bg-secondary dark:hover:bg-secondary/80',
         ghost:
-          'hover:bg-accent hover:text-accent-foreground dark:hover:bg-accent/50',
+          'hover:bg-black/5 hover:text-accent-foreground dark:hover:bg-accent/50',
         link: 'text-primary underline-offset-4 hover:underline',
       },
       size: {
diff --git a/yarn.lock b/yarn.lock
index d6ef2e1..5fd4c93 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -866,6 +866,24 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@tabler/icons-react@npm:^3.35.0":
+  version: 3.35.0
+  resolution: "@tabler/icons-react@npm:3.35.0"
+  dependencies:
+    "@tabler/icons": "npm:3.35.0"
+  peerDependencies:
+    react: ">= 16"
+  checksum: 10c0/8d280fcdae00916b001142ba0800ea05d8fa2acdcbd82f88a299b4141fb941237be2e826b86b1af710e038b4f8bb6f76f452c3309c29fd62398b4d5789c2b3e0
+  languageName: node
+  linkType: hard
+
+"@tabler/icons@npm:3.35.0":
+  version: 3.35.0
+  resolution: "@tabler/icons@npm:3.35.0"
+  checksum: 10c0/93098828128ffed2cf412b39bd78992f93f25b22349a4e04523d2a018b7fe376ddeff105babcc3efedd707aa00b705425c7d9f598d6987552a563c62125795a2
+  languageName: node
+  linkType: hard
+
 "@tailwindcss/node@npm:4.1.13":
   version: 4.1.13
   resolution: "@tailwindcss/node@npm:4.1.13"
@@ -1883,6 +1901,7 @@ __metadata:
     "@base-ui-components/react": "npm:^1.0.0-beta.3"
     "@eslint/js": "npm:^9.33.0"
     "@radix-ui/react-slot": "npm:^1.2.3"
+    "@tabler/icons-react": "npm:^3.35.0"
     "@tailwindcss/vite": "npm:^4.1.13"
     "@types/node": "npm:^24.3.1"
     "@types/react": "npm:^19.1.10"
@@ -1894,7 +1913,7 @@ __metadata:
     eslint-plugin-react-hooks: "npm:^5.2.0"
     eslint-plugin-react-refresh: "npm:^0.4.20"
     globals: "npm:^16.3.0"
-    lucide-react: "npm:^0.543.0"
+    lucide-react: "npm:^0.544.0"
     react: "npm:^19.1.1"
     react-dom: "npm:^19.1.1"
     tailwind-merge: "npm:^3.3.1"
@@ -1903,6 +1922,7 @@ __metadata:
     typescript: "npm:~5.8.3"
     typescript-eslint: "npm:^8.39.1"
     vite: "npm:^7.1.2"
+    wouter: "npm:^3.7.1"
     zustand: "npm:^5.0.8"
   languageName: unknown
   linkType: soft
@@ -2328,12 +2348,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"lucide-react@npm:^0.543.0":
-  version: 0.543.0
-  resolution: "lucide-react@npm:0.543.0"
+"lucide-react@npm:^0.544.0":
+  version: 0.544.0
+  resolution: "lucide-react@npm:0.544.0"
   peerDependencies:
     react: ^16.5.1 || ^17.0.0 || ^18.0.0 || ^19.0.0
-  checksum: 10c0/76bb54f9c602ff5d44ec66f2786c035d92aaabca1e1abb380b0c8101dfb3290e52c82fa4d630e286ef07c05b63696e187f0ca3ae186535d9c5b4de7aa8825bd3
+  checksum: 10c0/2503f8cf65e62915997073b6053423bf8091b9470cb397560b417ef2f1628ea162c49e821b787cf153afb86828482d941f051c3f2aa642a1fa58c3de227e0113
   languageName: node
   linkType: hard
 
@@ -2476,6 +2496,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"mitt@npm:^3.0.1":
+  version: 3.0.1
+  resolution: "mitt@npm:3.0.1"
+  checksum: 10c0/3ab4fdecf3be8c5255536faa07064d05caa3dd332bd318ff02e04621f7b3069ca1de9106cfe8e7ced675abfc2bec2ce4c4ef321c4a1bb1fb29df8ae090741913
+  languageName: node
+  linkType: hard
+
 "mkdirp@npm:^3.0.1":
   version: 3.0.1
   resolution: "mkdirp@npm:3.0.1"
@@ -2713,6 +2740,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"regexparam@npm:^3.0.0":
+  version: 3.0.0
+  resolution: "regexparam@npm:3.0.0"
+  checksum: 10c0/a6430d7b97d5a7d5518f37a850b6b73aab479029d02f46af4fa0e8e4a1d7aad05b7a0d2d10c86ded21a14d5f0fa4c68525f873a5fca2efeefcccd93c36627459
+  languageName: node
+  linkType: hard
+
 "reselect@npm:^5.1.1":
   version: 5.1.1
   resolution: "reselect@npm:5.1.1"
@@ -3136,7 +3170,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"use-sync-external-store@npm:^1.5.0":
+"use-sync-external-store@npm:^1.0.0, use-sync-external-store@npm:^1.5.0":
   version: 1.5.0
   resolution: "use-sync-external-store@npm:1.5.0"
   peerDependencies:
@@ -3229,6 +3263,19 @@ __metadata:
   languageName: node
   linkType: hard
 
+"wouter@npm:^3.7.1":
+  version: 3.7.1
+  resolution: "wouter@npm:3.7.1"
+  dependencies:
+    mitt: "npm:^3.0.1"
+    regexparam: "npm:^3.0.0"
+    use-sync-external-store: "npm:^1.0.0"
+  peerDependencies:
+    react: ">=16.8.0"
+  checksum: 10c0/1974f32f425c1cf6412e6946936e37db3a283e6e6965acd336ce04d67bb36fbf2c40fc90a1bc4537930b326e370b5e053437e0f80554cb94d34ec8c354b86693
+  languageName: node
+  linkType: hard
+
 "wrap-ansi-cjs@npm:wrap-ansi@^7.0.0":
   version: 7.0.0
   resolution: "wrap-ansi@npm:7.0.0"