diff --git a/app.js b/app.js
index ce215d7..992199c 100644
--- a/app.js
+++ b/app.js
@@ -327,7 +327,7 @@
     }
 
     function onDown(e) {
-      e.preventDefault();
+      // Don't preventDefault here — breaks iOS-Safari pointer sequence
       const p = getXY(e, canvas);
       isDragging = true;
       moved = false;
@@ -387,7 +387,7 @@
     canvas.addEventListener('pointerleave', onUp);
 
     // Touch events fallback (older iOS Safari 12-)
-    canvas.addEventListener('touchstart', onDown, { passive: false });
+    canvas.addEventListener('touchstart', onDown, { passive: true });
     canvas.addEventListener('touchmove', onMove, { passive: false });
     canvas.addEventListener('touchend', onUp, { passive: false });
     canvas.addEventListener('touchcancel', onUp, { passive: false });