Update app.py

app.py

@@ -578,7 +578,8 @@ elif menu == "Learn":
             
             with col2:
                 if st.button(f"View Mind Map", key=f"mindmap_{module_name}"):
-                    st.session_state.mind_maps[module_name] = module_info['topics']
+                    # Fixed: Store under user_progress
+                    st.session_state.user_progress['mind_maps'][module_name] = module_info['topics']
             
             with col3:
                 if st.button(f"Take Quiz", key=f"quiz_{module_name}"):
@@ -635,7 +636,7 @@ elif menu == "Practice":
         
         with col3:
             if st.button("View Solution"):
-                st.code(challenge["solution"])
+                st.code(challenge['solution'])
 
 elif menu == "Projects":
     st.markdown("<h1 class='main-header'>🛠️ Hands-on Projects</h1>", unsafe_allow_html=True)
@@ -1045,7 +1046,8 @@ elif menu == "Mind Maps":
             if new_map_topic and new_concepts:
                 concepts_dict = {concept.strip(): f"Description of {concept.strip()}" 
                                 for concept in new_concepts.split(",")}
-                st.session_state.mind_maps[new_map_topic] = concepts_dict
+                # Fixed: Store under user_progress
+                st.session_state.user_progress['mind_maps'][new_map_topic] = concepts_dict
                 st.success("Mind map created!")
     
     with col2:
@@ -1054,9 +1056,10 @@ elif menu == "Mind Maps":
             fig = create_mind_map(selected_map, MIND_MAP_DB[selected_map])
             st.plotly_chart(fig, use_container_width=True)
         
-        if st.session_state.mind_maps:
+        # Fixed: Access through user_progress
+        if st.session_state.user_progress['mind_maps']:
             st.markdown("### 🗂️ Your Custom Maps")
-            for topic, concepts in st.session_state.mind_maps.items():
+            for topic, concepts in st.session_state.user_progress['mind_maps'].items():
                 with st.expander(topic):
                     fig = create_mind_map(topic, concepts)
                     st.plotly_chart(fig, use_container_width=True)