disable start button if not logged in

app.py

@@ -133,10 +133,16 @@ def push_results_to_hub(user_answers, token: gr.OAuthToken | None):
 
 
 
-def handle_quiz(question_idx, user_answers, selected_answer, is_start):
+def handle_quiz(
+    question_idx, user_answers, selected_answer, is_start, token: gr.OAuthToken | None
+):
     """
     Handle quiz state transitions and store answers
     """
+    if token is None:
+        gr.Warning("Please log in to Hugging Face before starting the quiz!")
+        return
+
     if not is_start and question_idx < len(quiz_data):
         current_q = quiz_data[question_idx]
         correct_reference = current_q["correct_answer"]