adds interface improvements

app.py

@@ -258,16 +258,26 @@ def generate_response(input_data, chat_history, max_new_tokens, model_identity,
         logging.exception("Generation streaming failed")
         yield f"❌ Error during generation: {e}"
 
-with gr.Blocks(theme=gr.themes.Soft()) as demo:
+APP_CSS = """
+#main_chatbot {height: calc(100vh - 220px);}
+.gradio-container {min-height: 100vh;}
+"""
+
+with gr.Blocks(theme=gr.themes.Soft(), css=APP_CSS) as demo:
     gr.Markdown(TITLE_MD)
+    # Informational sections above the chatbot
     with gr.Row():
         with gr.Column(scale=3):
             gr.Markdown(DESCRIPTION_MD)
         with gr.Column(scale=2):
             gr.Markdown(JOIN_US_MD)
 
+    # Large chatbot (fills viewport minus header via CSS)
+    large_chatbot = gr.Chatbot(label="Chatbot", elem_id="main_chatbot")
+
     gr.ChatInterface(
         fn=generate_response,
+        chatbot=large_chatbot,
         additional_inputs=[
             gr.Slider(label="Max new tokens", minimum=64, maximum=4096, step=1, value=2048),
             gr.Textbox(
@@ -295,6 +305,7 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
                 interactive=True,
             ),
             ],
+        additional_inputs_accordion="Additional Parameters",
         examples=[
             [{"text": "A 68-year-old man complains of several blisters arising over the back and trunk for the preceding 2 weeks. He takes no medications and has not noted systemic symptoms such as fever, sore throat, weight loss, or fatigue. The general physical examination is normal. The oral mucosa and the lips are normal. Several 2- to 3-cm bullae are present over the trunk and back. A few excoriations where the blisters have ruptured are present. The remainder of the skin is normal, without erythema or scale. What is the best diagnostic approach at this time?"}],
             [{"text": "A 28-year-old woman, gravida 2, para 1, at 40 weeks of gestation is admitted to the hospital in active labor. The patient has attended many prenatal appointments and followed her physician's advice about screening for diseases, laboratory testing, diet, and exercise. Her pregnancy has been uncomplicated. She has no history of a serious illness. Her first child was delivered via normal vaginal delivery. Her vital signs are within normal limits. Cervical examination shows 100% effacement and 10 cm dilation. A cardiotocograph is shown. Which of the following is the most appropriate initial step in management?"}],
@@ -305,6 +316,7 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
         cache_examples=False,
         type="messages",
         fill_height=True,
+        fill_width=True,
         textbox=gr.Textbox(
             label="Query Input",
             placeholder="Type your prompt (supports LaTeX: $x^2 + y^2 = z^2$)"