ok

src/index.js

@@ -3,6 +3,7 @@ import React from "react";
 import ReactDOM from "react-dom/client"; // ✅ use 'react-dom/client' in React 18+
 import { BrowserRouter } from "react-router-dom";
 import App from "./App";
+import "./index.css";
 
 // ✅ createRoot instead of render
 const root = ReactDOM.createRoot(document.getElementById("root"));