all local

js/nav.js

@@ -0,0 +1,17 @@
+// Back-to-hub button with active-task confirmation
+(function () {
+  document.addEventListener('DOMContentLoaded', () => {
+    const backBtn = document.getElementById('back-to-hub')
+    if (!backBtn) return
+
+    backBtn.addEventListener('click', (e) => {
+      const playScreen = document.getElementById('play-screen')
+      const taskActive = playScreen && !playScreen.classList.contains('hidden')
+      if (taskActive) {
+        e.preventDefault()
+        const ok = confirm('Masz aktywne zadanie. Czy na pewno chcesz wyjść do menu?')
+        if (ok) window.location.href = backBtn.getAttribute('href')
+      }
+    })
+  })
+})()