Update app.py

app.py

@@ -40,7 +40,7 @@ def check_cc(n):
         digits[i] *= 2
         
     total = sum(digits)
-    return "Valid" if total % 2 == 0 else "Invalid"
+    return "Valid" if total % 2 == 0 and len(digits) == 16 else "Invalid"
 
 
 with gr.Blocks(title="Josiah's Gradio Playground") as playground:
@@ -59,7 +59,7 @@ with gr.Blocks(title="Josiah's Gradio Playground") as playground:
         num = gr.Textbox("CC Number (DO NOT USE MALICIOUSLY)")
         valid = gr.Textbox("Is valid (DO NOT USE MALICIOUSLY)")
         with gr.Row():
-            validate = gr.Button("Validate")
+            validate = gr.Button("Validate", variant="primary")
             gr.ClearButton([num, valid])
             validate.click(fn=check_cc, inputs=num,outputs=valid)