Update app.py

app.py

@@ -1,8 +1,11 @@
 import openai, gradio as gr, json, plotly.graph_objects as go
 from pathlib import Path
 
-# --- Style: load from local CSS file ---
-CUSTOM_CSS = Path("style.css").read_text()
+# --- Try loading CSS, fallback to "" if not found ---
+try:
+    CUSTOM_CSS = Path("style.css").read_text()
+except Exception:
+    CUSTOM_CSS = ""
 
 SYSTEM_PROMPT = """
 You are ZEN Multimodal Assistant by ZEN AI Co.
@@ -35,12 +38,11 @@ def multimodal_chat(api_key, user_msg, history):
     )
     assistant_content = response.choices[0].message.content.strip()
 
-    # Defensive: Never show the word "text" alone
     if assistant_content.lower() == "text":
         assistant_content = "(I'm sorry, I didn't understand. Could you rephrase?)"
 
     img_url, fig = None, None
-    try:  # Try to parse as JSON for image or chart
+    try:
         parsed = json.loads(assistant_content)
         if parsed.get("type") == "image":
             dalle = openai.images.generate(
@@ -65,10 +67,8 @@ def multimodal_chat(api_key, user_msg, history):
             fig.update_layout(title=parsed.get("title", "Chart"))
             history.append([user_msg, parsed.get("title", "Chart below")])
         else:
-            # If unexpected JSON, fallback to text
             history.append([user_msg, str(assistant_content)])
     except (json.JSONDecodeError, KeyError, TypeError):
-        # If not JSON, treat as text
         history.append([user_msg, assistant_content])
 
     return history, img_url, fig