Update app.py

app.py

@@ -72,7 +72,7 @@ def main():
         <style>
         /* Main background color */
         .stApp {
-            background-color: #fffde7;  /* Light blue background */
+            background-color: #0000ff;  /* Light blue background */
             max-width: 1200px;
             margin: 0 auto;
         }