Update app.py

app.py

@@ -69,8 +69,11 @@ chat = gr.ChatInterface(
     undo_btn=None,
 )
 
-# Wrap in Blocks to add custom CSS
-with gr.Blocks(css=".footer {display: none !important;}") as demo:
+# Wrap in Blocks to add custom CSS and preserve theme
+with gr.Blocks(
+    theme=gr.themes.Soft(),
+    css=".footer {display: none !important;} .gradio-container-4-42-0 .footer {display: none !important;}"
+) as demo:
     chat.render()
 
 if __name__ == "__main__":