Refine green circle interaction in demo interface by disabling pointer events and updating cursor styles, ensuring only the inner button is clickable.

app.py

@@ -589,7 +589,8 @@ def create_demo():
             background: linear-gradient(135deg, #6ee7b7 0%, #34d399 100%);
             box-shadow: 0 20px 40px rgba(16,185,129,0.3), 0 0 0 1px rgba(255,255,255,0.1) inset;
             transition: all 250ms cubic-bezier(0.4, 0, 0.2, 1);
-            cursor: pointer;
+            cursor: default;            /* green circle itself is not clickable */
+            pointer-events: none;       /* ignore clicks on the green circle */
             position: relative;
         }
         #voice-bubble:hover { 
@@ -610,6 +611,8 @@ def create_demo():
         #voice-bubble select { display: none !important; }
         #voice-bubble .source-selection { display: none !important; }
         #voice-bubble label[for] { display: none !important; }
+        /* Make the inner button the only clickable target */
+        #voice-bubble button { pointer-events: auto; cursor: pointer; }
         /* Hide TTS player UI but keep it in DOM for autoplay */
         #tts-player { width: 0 !important; height: 0 !important; opacity: 0 !important; position: absolute; pointer-events: none; }
         '''