diff --git a/index.html b/index.html
index 57442bb..036b8b7 100644
--- a/index.html
+++ b/index.html
@@ -1,13 +1,12 @@
-<!doctype html>
-<html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>dyad-generated-app</title>
-  </head>
-
-  <body>
-    <div id="root"></div>
-    <script type="module" src="/src/main.tsx"></script>
-  </body>
-</html>
+<!doctype html>
+<html lang="fr">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Notes App</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.tsx"></script>
+  </body>
+</html>
\ No newline at end of file
diff --git a/postcss.config.js b/postcss.config.js
index 96bb01e..e99ebc2 100644
--- a/postcss.config.js
+++ b/postcss.config.js
@@ -1,4 +1,4 @@
-module.exports = {
+export default {
   plugins: {
     tailwindcss: {},
     autoprefixer: {},
diff --git a/src/App.tsx b/src/App.tsx
index 246486d..9b9a568 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -26,10 +26,8 @@ const App = () => {
   const [isLoading, setIsLoading] = useState(true);
 
   useEffect(() => {
-    // Vérifier le token au démarrage
     const checkAuth = async () => {
       try {
-        // Vérifier si le token est valide
         if (AuthService.getToken()) {
           await AuthService.checkTokenValidity();
         }
@@ -55,8 +53,6 @@ const App = () => {
     <QueryClientProvider client={queryClient}>
       <ThemeProvider defaultTheme="light" storageKey="notes-theme">
         <TooltipProvider>
-          <Toaster />
-          <Sonner />
           <BrowserRouter>
             <Routes>
               <Route path="/login" element={<Login />} />
@@ -71,6 +67,8 @@ const App = () => {
               <Route path="*" element={<NotFound />} />
             </Routes>
           </BrowserRouter>
+          <Toaster />
+          <Sonner />
         </TooltipProvider>
       </ThemeProvider>
     </QueryClientProvider>
diff --git a/src/main.tsx b/src/main.tsx
index ce55ab1..e45c95e 100644
--- a/src/main.tsx
+++ b/src/main.tsx
@@ -1,5 +1,8 @@
-import { createRoot } from "react-dom/client";
-import App from "./App.tsx";
-import "./globals.css";
-
-createRoot(document.getElementById("root")!).render(<App />);
+import { createRoot } from "react-dom/client";
+import App from "./App";
+import "./globals.css";
+
+const root = document.getElementById("root");
+if (!root) throw new Error("Root element not found");
+
+createRoot(root).render(<App />);
\ No newline at end of file