Fixed the Gradio 6.0 compatibility issues

- Removed css parameter from gr.Blocks() constructor (moved to launch() in Gradio 6.0)
- Removed show_copy_button=True from gr.Textbox() (not supported in Gradio 6.0)

app.py

@@ -737,20 +737,8 @@ def process_question(question: str) -> str:
     return query(question)
 
 
-# Custom CSS for professional appearance
-custom_css = """
-.gradio-container {
-    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
-}
-.output-text {
-    font-family: 'Consolas', 'Monaco', monospace;
-    font-size: 14px;
-    line-height: 1.5;
-}
-"""
-
-# Create the interface
-with gr.Blocks(css=custom_css, title="Fraud Model Explainability Assistant") as iface:
+# Create the interface (Gradio 6.0 compatible)
+with gr.Blocks(title="Fraud Model Explainability Assistant") as iface:
     gr.Markdown("""
     # 🔍 Fraud Model Explainability Assistant
     
@@ -777,8 +765,7 @@ with gr.Blocks(css=custom_css, title="Fraud Model Explainability Assistant") as
     with gr.Row():
         output = gr.Textbox(
             label="Analysis Results",
-            lines=25,
-            show_copy_button=True
+            lines=25
         )
     
     gr.Markdown("### 💡 Example Questions")