diff --git a/frontend/public/sw.js b/frontend/public/sw.js
index 7e549c7..4d93cd4 100644
--- a/frontend/public/sw.js
+++ b/frontend/public/sw.js
@@ -32,3 +32,23 @@ self.addEventListener('fetch', e => {
     })
   );
 });
+
+self.addEventListener('push', event => {
+  if (!event.data) return;
+  let data = {};
+  try { data = event.data.json(); } catch { data = { title:'Neue Nachricht', body: event.data.text() }; }
+  event.waitUntil(
+    self.registration.showNotification(data.title || 'DickenDock', {
+      body: data.body || '',
+      icon: data.icon || '/favicon.svg',
+      badge: '/favicon.svg',
+      tag: 'message',
+      renotify: true,
+    })
+  );
+});
+
+self.addEventListener('notificationclick', event => {
+  event.notification.close();
+  event.waitUntil(clients.openWindow('/'));
+});