diff --git a/src/contexts/AuthContext.tsx b/src/contexts/AuthContext.tsx
new file mode 100644
index 0000000..574c18d
--- /dev/null
+++ b/src/contexts/AuthContext.tsx
@@ -0,0 +1,53 @@
+import React, { createContext, useContext, useEffect, useState } from 'react';
+import { Session, User } from '@supabase/supabase-js';
+import { supabase } from '../lib/supabase';
+
+interface AuthContextType {
+  session: Session | null;
+  user: User | null;
+  isLoading: boolean;
+  signOut: () => Promise<void>;
+}
+
+const AuthContext = createContext<AuthContextType>({
+  session: null,
+  user: null,
+  isLoading: true,
+  signOut: async () => {},
+});
+
+export const useAuth = () => useContext(AuthContext);
+
+export const AuthProvider = ({ children }: { children: React.ReactNode }) => {
+  const [session, setSession] = useState<Session | null>(null);
+  const [user, setUser] = useState<User | null>(null);
+  const [isLoading, setIsLoading] = useState(true);
+
+  useEffect(() => {
+    supabase.auth.getSession().then(({ data: { session } }) => {
+      setSession(session);
+      setUser(session?.user ?? null);
+      setIsLoading(false);
+    });
+
+    const { data: { subscription } } = supabase.auth.onAuthStateChange(
+      (_event, session) => {
+        setSession(session);
+        setUser(session?.user ?? null);
+        setIsLoading(false);
+      }
+    );
+
+    return () => subscription.unsubscribe();
+  }, []);
+
+  const signOut = async () => {
+    await supabase.auth.signOut();
+  };
+
+  return (
+    <AuthContext.Provider value={{ session, user, isLoading, signOut }}>
+      {children}
+    </AuthContext.Provider>
+  );
+};