diff --git a/index.html b/index.html
index 4eb9d48..c341616 100644
--- a/index.html
+++ b/index.html
@@ -1186,7 +1186,9 @@
         function getFocusableElements(container) {
             const elements = container.querySelectorAll('button, input:not([type="hidden"]), select, textarea, [tabindex]:not([tabindex="-1"])');
             return Array.from(elements).filter(el => {
-                return el.offsetParent !== null && !el.disabled;
+                if (el.disabled) return false;
+                const style = window.getComputedStyle(el);
+                return style.display !== 'none' && style.visibility !== 'hidden';
             });
         }