Update app.py

app.py

@@ -287,7 +287,7 @@ def generate_qr(json_data):
 def create_interface():
     """Create a comprehensive Gradio interface with advanced features"""
 
-   css = """
+css = """
 .container { max-width: 1200px; margin: auto; }
 .warning { background-color: #fff3cd; color: #856404; }
 .error { background-color: #f8d7da; color: #721c24; }