Update app.py

app.py

@@ -151,15 +151,24 @@ if st.session_state.chunked and not st.session_state.vector_created:
 
 
 # ----------------- Query Input -----------------
-query = None 
+query = None  
 
-# Notify user if no PDF is provided in an aesthetic manner
+# Step 1: No PDF Provided Yet
 if not st.session_state.pdf_path:
-    st.warning("**No PDF detected!** Please enter a valid URL or upload a PDF file to proceed.", icon="⚠️")
-    
-# Show input box ONLY when processing is fully complete
+    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:
+    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:
+    st.info("⏳ **Processing your document... Please wait.**")
+
+# Step 4: Processing Complete, Ready for Questions
 elif st.session_state.pdf_loaded and st.session_state.chunked and st.session_state.vector_created:
-    query = st.text_input("🔍 Ask a question about the document:")
+    st.success("🎉 **Processing complete! You can now ask questions.**")
+    query = st.text_input("🔍 **Ask a question about the document:**")
     
 if query:
     with st.spinner("🔄 Retrieving relevant context..."):