Update app.py

app.py

@@ -54,10 +54,21 @@ st.markdown("""
     width: 100%;
     border-radius: 8px;
     font-weight: 600;
-    margin-bottom: 6px; /* Spacing between buttons */
+    margin-bottom: 6px;
 }
 
-/* 3. CHAT & UI STYLING */
+/* 3. HIDE UPLOADED FILE LIST BELOW UPLOADER */
+/* This specifically hides the list of file names that appears below the browse button */
+section[data-testid="stFileUploader"] ul {
+    display: none;
+}
+/* Also hide the small 'Limit 200MB' text if desired, optional:
+section[data-testid="stFileUploader"] small {
+    display: none;
+} 
+*/
+
+/* 4. CHAT & UI STYLING */
 :root {
     --primary-color: #1e3a8a;
     --background-color: #0e1117;
@@ -92,7 +103,7 @@ st.markdown("""
     padding-top: 5px;
 }
 
-/* 4. CENTER TITLE STYLING */
+/* 5. CENTER TITLE STYLING */
 .title-container {
     text-align: center;
     margin-bottom: 20px;
@@ -113,7 +124,7 @@ st.markdown("""
     text-decoration: none;
 }
 
-/* 5. INPUT FORM STYLING */
+/* 6. INPUT FORM STYLING */
 [data-testid="stForm"] {
     border: none;
     padding: 0;
@@ -242,10 +253,9 @@ st.markdown("""
 
 # ---------------- SIDEBAR ----------------
 with st.sidebar:
-    # 1. Spacer to push content down slightly (optional, but looks better without header)
     st.write("") 
     
-    # 2. Action Buttons (No Header)
+    # Action Buttons
     if st.button("🗑️ Clear Chat History", use_container_width=True):
         clear_chat_history()
         
@@ -254,18 +264,21 @@ with st.sidebar:
 
     st.markdown("---")
     
-    # 3. File Upload (Label Hidden)
+    # Dynamic Label based on state
+    # If a file is loaded, show a success icon/text. If not, show "Upload PDF".
+    upload_label = "✅ PDF Uploaded!" if st.session_state.uploaded_file_name else "Upload PDF"
+
     uploaded = st.file_uploader(
-        "Upload PDF", # Label is required but hidden via visibility param
+        upload_label, 
         type=["pdf"],
         key=st.session_state.uploader_key,
-        label_visibility="collapsed" # <--- Hides the "Upload your PDF" text
+        label_visibility="collapsed" # Still hiding the main label text
     )
 
-    # Status Message
+    # Status Message logic
     if uploaded:
         if uploaded.name != st.session_state.uploaded_file_name:
-            # Processing logic
+            # Processing
             st.session_state.uploaded_file_name = None
             st.session_state.chat = []
             
@@ -278,10 +291,10 @@ with st.sidebar:
                 else:
                     st.error("❌ Failed.")
         else:
-            # File is already processed and active
-            st.success(f"✅ **Active:** `{uploaded.name}`")
+            # Active State
+            # This appears BELOW the uploader box
+            st.success(f"👍 **Ready:** `{uploaded.name}`")
     else:
-        # No file uploaded yet
         st.warning("⬆️ Upload a PDF to start chatting!")
 
 # ---------------- INPUT AREA ----------------