Fix private Space Gradio 6 runtime API usage

app.py

@@ -294,9 +294,14 @@ def load_example(example_name: str):
     )
 
 
-with gr.Blocks(css=CSS, title="BioAssayAlign Compatibility Explorer") as demo:
+with gr.Blocks(title="BioAssayAlign Compatibility Explorer") as demo:
     gr.Markdown(
         """
+<style>
+"""
+        + CSS
+        + """
+</style>
 <div id="hero">
   <div class="eyebrow">BioAssayAlign · scientist-facing ranking demo</div>
   <div class="hero-title">Rank candidate molecules for a bioassay</div>
@@ -356,7 +361,7 @@ Use the structured fields if you have them. Missing fields are allowed, but spec
 
         summary = gr.Markdown()
         with gr.Accordion("Serialized assay text used by the model", open=False):
-            assay_preview = gr.Textbox(lines=12, show_copy_button=True, label="Model-facing assay text")
+            assay_preview = gr.Textbox(lines=12, label="Model-facing assay text")
         ranked_df = gr.Dataframe(label="Ranked molecules", interactive=False, wrap=True)
         invalid_df = gr.Dataframe(label="Rejected inputs", interactive=False, wrap=True)
         download_file = gr.File(label="Download CSV")