diff --git a/app/contexts/AuthContext.js b/app/contexts/AuthContext.js
deleted file mode 100755
index 4afee49..0000000
--- a/app/contexts/AuthContext.js
+++ /dev/null
@@ -1,80 +0,0 @@
-'use client';
-import { createContext, useContext, useEffect, useState } from 'react';
-import axios from 'axios';
-
-const AuthContext = createContext();
-
-const API = process.env.NEXT_PUBLIC_API_URL;
-
-export const AuthProvider = ({ children }) => {
-  const [user, setUser] = useState(null);
-
-  const signup = async (email, password, name) => {
-    try {
-      const res = await axios.post(`${API}/auth/signup`, {
-        email,
-        password,
-        name,
-      });
-
-      if (res.data.success) {
-        setUser(res.data.user);
-        return { success: true };
-      }
-
-      return { success: false, message: res.data.message };
-    } catch (error) {
-      return { success: false, message: error.response?.data?.message || 'Signup failed' };
-    }
-  };
-
-  const login = async (email, password) => {
-    try {
-      const res = await axios.post(`${API}/auth/login`, {
-        email,
-        password,
-      });
-
-      if (res.data.success) {
-        setUser(res.data.user);
-        localStorage.setItem('token', res.data.token);
-        return { success: true };
-      }
-
-      return { success: false, message: res.data.message };
-    } catch (error) {
-      return { success: false, message: error.response?.data?.message || 'Login failed' };
-    }
-  };
-
-  const logout = () => {
-    setUser(null);
-    localStorage.removeItem('token');
-  };
-
-  useEffect(() => {
-    const fetchUser = async () => {
-      const token = localStorage.getItem('token');
-      if (token) {
-        try {
-          const res = await axios.get(`${API}/auth/me`, {
-            headers: { Authorization: `Bearer ${token}` },
-          });
-          if (res.data.user) setUser(res.data.user);
-        } catch {
-          localStorage.removeItem('token');
-        }
-      }
-    };
-
-    fetchUser();
-  }, []);
-
-  return (
-    <AuthContext.Provider value={{ user, signup, login, logout }}>
-      {children}
-    </AuthContext.Provider>
-  );
-};
-
-export const useUser = () => useContext(AuthContext);
\ No newline at end of file
diff --git a/app/design-algorithm/page.jsx b/app/design-algorithm/page.jsx
index 43529be..0dd5258 100755
--- a/app/design-algorithm/page.jsx
+++ b/app/design-algorithm/page.jsx
@@ -3,9 +3,6 @@ import Navbar from '@/app/components/navbar';
 import Footer from '@/app/components/footer';
 import DesignAlgorithmClient from './DesignAlgorithmClient';
 
-// Shape mirrors /visualizer:
-//   { title, icon, info?: { About, ... }, subsections: [{ title, items: [{ name, path }] }] }
-// A section may use a flat `items: [{ name, path }]` instead of `subsections`.
 const sections = [
   {
     title: "Fundamentals of Algorithm Analysis",
diff --git a/app/layout.jsx b/app/layout.jsx
index c84332c..4ecdd83 100755
--- a/app/layout.jsx
+++ b/app/layout.jsx
@@ -1,12 +1,9 @@
 import "./globals.css";
 import Script from "next/script";
 import { SpeedInsights } from "@vercel/speed-insights/next"
-import { AuthProvider } from '@/app/contexts/AuthContext';
 import { UserProvider } from '@/app/contexts/UserContext';
 import { ThemeProvider } from '@/app/contexts/ThemeContext';
 import ClientLayoutWrapper from "@/app/components/ui/ClientLayoutWrapper";
-import { createServerClient } from "@supabase/ssr";
-import { cookies } from "next/headers";
 
 const GA_ID = process.env.NEXT_PUBLIC_GA_ID;
 
@@ -62,24 +59,7 @@ export const metadata = {
   },
 };
 
-export default async function RootLayout({ children }) {
-  const cookieStore = await cookies();
-  const supabase = createServerClient(
-    process.env.NEXT_PUBLIC_SUPABASE_URL,
-    process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY,
-    {
-      cookies: {
-        getAll: () => cookieStore.getAll(),
-        setAll: () => {
-          // Server Components can't set cookies; middleware/route handlers refresh the session.
-        },
-      },
-    }
-  );
-  const {
-    data: { session },
-  } = await supabase.auth.getSession();
-
+export default function RootLayout({ children }) {
   return (
     <html lang="en" data-scroll-behavior="smooth">
       <head>
@@ -108,7 +88,6 @@ export default async function RootLayout({ children }) {
         )}
       </head>
       <body>
-        <AuthProvider session={session}>
         <UserProvider>
           <ThemeProvider>
             <ClientLayoutWrapper>
@@ -116,7 +95,6 @@ export default async function RootLayout({ children }) {
             </ClientLayoutWrapper>
           </ThemeProvider>
         </UserProvider>
-        </AuthProvider>
       </body>
       <SpeedInsights/>
     </html>