diff --git a/.jules/bolt.md b/.jules/bolt.md
index a7efe75..f667f2d 100644
--- a/.jules/bolt.md
+++ b/.jules/bolt.md
@@ -1,3 +1,7 @@
 ## 2024-05-22 - Missing Scripts and Environment
 **Learning:** The project lacks `lint` script in `package.json`. Running `pnpm lint` might invoke system tools (like Android Lint?) instead of failing or doing nothing useful. Always check `package.json` scripts first.
 **Action:** Use specific commands like `pnpm exec tsc --noEmit` or `npx vitest` as discovered/documented, rather than assuming standard scripts exist.
+
+## 2025-01-26 - Missing Node Modules
+**Learning:** The environment might lack `node_modules` completely, preventing `npx vitest` or `pnpm exec tsc` from running even if dependencies are listed in `package.json`. Network restrictions may prevent `pnpm install`.
+**Action:** When `node_modules` is missing and cannot be installed, rely on static analysis, careful code review, and verifying file contents manually. Do not assume tests can run.
diff --git a/src/App.tsx b/src/App.tsx
index 77f78cf..5c4e796 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,9 +1,16 @@
+import { Suspense, lazy } from 'react';
 import { BrowserRouter, Routes, Route } from 'react-router-dom';
 import { LanguageProvider } from './i18n';
 import { Navbar, Footer, FancyCursor, ScrollToTop } from './components/layout';
-import { Home, About, Contact } from './pages';
+import { Home } from './pages/Home';
+import { PageLoader } from './components/ui';
 import './styles/global.css';
 
+// Lazy load pages to reduce initial bundle size.
+// Home is imported directly to prevent layout shift on initial load.
+const About = lazy(() => import('./pages/About').then(module => ({ default: module.About })));
+const Contact = lazy(() => import('./pages/Contact').then(module => ({ default: module.Contact })));
+
 export function App() {
   return (
     <LanguageProvider>
@@ -11,11 +18,14 @@ export function App() {
         <ScrollToTop />
         <FancyCursor />
         <Navbar />
-        <Routes>
-          <Route path="/" element={<Home />} />
-          <Route path="/about" element={<About />} />
-          <Route path="/contact" element={<Contact />} />
-        </Routes>
+        {/* Suspense handles the loading state for lazy-loaded routes */}
+        <Suspense fallback={<PageLoader />}>
+          <Routes>
+            <Route path="/" element={<Home />} />
+            <Route path="/about" element={<About />} />
+            <Route path="/contact" element={<Contact />} />
+          </Routes>
+        </Suspense>
         <Footer />
       </BrowserRouter>
     </LanguageProvider>
diff --git a/src/components/ui/PageLoader.module.css b/src/components/ui/PageLoader.module.css
new file mode 100644
index 0000000..ebd2cd0
--- /dev/null
+++ b/src/components/ui/PageLoader.module.css
@@ -0,0 +1,22 @@
+.container {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  min-height: 60vh;
+  width: 100%;
+}
+
+.loader {
+  width: 40px;
+  height: 40px;
+  border: 3px solid var(--md-sys-color-surface-container-highest);
+  border-top-color: var(--md-sys-color-primary);
+  border-radius: 50%;
+  animation: spin 1s linear infinite;
+}
+
+@keyframes spin {
+  to {
+    transform: rotate(360deg);
+  }
+}
diff --git a/src/components/ui/PageLoader.tsx b/src/components/ui/PageLoader.tsx
new file mode 100644
index 0000000..740f9f2
--- /dev/null
+++ b/src/components/ui/PageLoader.tsx
@@ -0,0 +1,9 @@
+import styles from './PageLoader.module.css';
+
+export function PageLoader() {
+  return (
+    <div className={styles.container}>
+      <div className={styles.loader} />
+    </div>
+  );
+}
diff --git a/src/components/ui/index.ts b/src/components/ui/index.ts
index 6ae0113..78cc7f9 100644
--- a/src/components/ui/index.ts
+++ b/src/components/ui/index.ts
@@ -1,3 +1,4 @@
 export { Button } from './Button';
 export { Card } from './Card';
 export { Input, Textarea } from './Input';
+export { PageLoader } from './PageLoader';