Update app.py

app.py

@@ -312,7 +312,7 @@ def predict_gradio(*values):
 
 
 # ---------------------------------------------------------------------------
-# CSS
+# CSS  (passed to launch() in Gradio 6+)
 # ---------------------------------------------------------------------------
 
 custom_css = """
@@ -333,7 +333,7 @@ custom_css = """
 # Gradio UI
 # ---------------------------------------------------------------------------
 
-with gr.Blocks(title="HCT Outcome Prediction Model", css=custom_css) as demo:
+with gr.Blocks(title="HCT Outcome Prediction Model") as demo:
     gr.Markdown(
         """
         # HCT Outcome Prediction Model
@@ -412,7 +412,7 @@ with gr.Blocks(title="HCT Outcome Prediction Model", css=custom_css) as demo:
             headers=["Outcome", "Probability", "95% CI"],
             label="",
             row_count=(len(REPORTING_OUTCOMES), "dynamic"),
-            col_count=(3, "fixed"),
+            column_count=(3, "fixed"),   # fixed: col_count → column_count (Gradio 6)
         )
 
     gr.Markdown("---")
@@ -470,4 +470,7 @@ with gr.Blocks(title="HCT Outcome Prediction Model", css=custom_css) as demo:
 
 
 if __name__ == "__main__":
-    demo.launch(ssr_mode=False)
+    demo.launch(
+        ssr_mode=False,
+        css=custom_css,   # css moved to launch() in Gradio 6
+    )