Update app.py

app.py

@@ -1260,11 +1260,25 @@ def explanation_questions():
         )
 
         if st.button("ادامه", key=f"continue_{current_step}"):
-            if st.session_state.get(q["key"]) is None:
+            response = st.session_state.get(q["key"])
+            if response is None:
                 st.warning("لطفاً یک گزینه را انتخاب کنید")
             else:
+                # 🟣 ذخیره پاسخ فعلی در session_state
+                key_mapping = {
+                    "trust_radio": "trust",
+                    "pricing_method_radio": "pricing_method",
+                    "price_increase_radio": "price_increase",
+                    "explanation_received_radio": "explanation_received",
+                    "explanation_type_radio": "explanation_type"
+                }
+                logical_key = key_mapping.get(q["key"])
+                if logical_key:
+                    st.session_state[logical_key] = response
+        
                 st.session_state.explanation_step += 1
                 st.rerun()
+       
     else:
         # مرحله آخر: ذخیره داده‌ها و رفتن به فرم دموگرافیک
         st.session_state.trust = st.session_state.get("trust_radio")