Update app.py

app.py

@@ -154,15 +154,17 @@ if st.session_state.chunked and not st.session_state.vector_created:
 query = None  
 
 # Step 1: No PDF Provided Yet
-if not st.session_state.pdf_path:
+if not st.session_state.pdf_path and not st.session_state.get("trigger_download", False):
     st.info("📥 **Please upload a PDF or enter a valid URL to proceed.**")
 
 # Step 2: PDF URL Exists but Not Processed Yet
-elif st.session_state.pdf_path and not st.session_state.pdf_loaded:
+elif st.session_state.pdf_path and not st.session_state.pdf_loaded and not st.session_state.get("trigger_download", False):
     st.warning("⚠️ **PDF detected! Click 'Download and Process PDF' to start processing.**")
 
-# Step 3: Processing in Progress
-elif not st.session_state.chunked or not st.session_state.vector_created:
+# Step 3: Processing in Progress 
+elif st.session_state.get("trigger_download", False) and (
+    not st.session_state.pdf_loaded or not st.session_state.chunked or not st.session_state.vector_created
+):
     st.info("⏳ **Processing your document... Please wait.**")
 
 # Step 4: Processing Complete, Ready for Questions