diff --git a/activity-feed.js b/activity-feed.js
index c3e9be3..5ba275a 100644
--- a/activity-feed.js
+++ b/activity-feed.js
@@ -272,8 +272,10 @@ function createTriggerButton() {
             dragging = true;
         }
         if (dragging) {
-            const x = Math.max(0, Math.min(window.innerWidth - 40, e.clientX - offsetX));
-            const y = Math.max(0, Math.min(window.innerHeight - 40, e.clientY - offsetY));
+            const viewportWidth = (window.visualViewport ? window.visualViewport.width : window.innerWidth);
+            const x = Math.max(0, Math.min(viewportWidth - 40, e.clientX - offsetX));
+            const viewportHeight = (window.visualViewport ? window.visualViewport.height : window.innerHeight);
+            const y = Math.max(0, Math.min(viewportHeight - 40, e.clientY - offsetY));
             triggerEl.style.left = `${x}px`;
             triggerEl.style.top = `${y}px`;
             triggerEl.style.bottom = 'auto';
diff --git a/style.css b/style.css
index 05ba272..3236cec 100644
--- a/style.css
+++ b/style.css
@@ -817,6 +817,7 @@
         height: 44px;
         font-size: 17px;
         bottom: 120px;
+        top: 450px;
     }
 
     /* Mobile: full-width panel */