diff --git a/src/middleware.ts b/src/middleware.ts
new file mode 100644
index 0000000..84e9b87
--- /dev/null
+++ b/src/middleware.ts
@@ -0,0 +1,26 @@
+import { NextResponse } from 'next/server'
+import type { NextRequest } from 'next/server'
+
+export function middleware(request: NextRequest) {
+  // Verifica se é uma rota admin
+  if (request.nextUrl.pathname.startsWith('/admin')) {
+    // Excluir a página de login da verificação
+    if (request.nextUrl.pathname === '/admin/login') {
+      return NextResponse.next()
+    }
+
+    // Verificar se está autenticado
+    const isAuthenticated = request.cookies.get('auth_token')
+    
+    if (!isAuthenticated) {
+      // Redirecionar para login
+      return NextResponse.redirect(new URL('/admin/login', request.url))
+    }
+  }
+
+  return NextResponse.next()
+}
+
+export const config = {
+  matcher: ['/admin/:path*']
+}
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