diff --git a/public/service-worker.js b/public/service-worker.js
index a6650d7..695fdbc 100644
--- a/public/service-worker.js
+++ b/public/service-worker.js
@@ -1,13 +1,20 @@
-const CACHE='sun-catering-pwa-v78-20260909-v17-7-3-clients-server-read';
-const VERSION='20260909-v17-7-3-clients-server-read';
+const CACHE='sun-catering-pwa-v79-20260912-login-refresh';
+const VERSION='20260912-login-refresh';
 const CORE=[
   './','./index.html',
-  `./core/sun-safe.js?v=${VERSION}`,`./core/performance.js?v=${VERSION}`,`./core/data-layer-v1773.js?v=${VERSION}`,`./core/server-automation-v1770.js?v=${VERSION}`,`./core/hotfix-v1763.js?v=${VERSION}`,`./core/ops-ux-v1762.js?v=${VERSION}`,`./core/ux-fixes-v1764.js?v=${VERSION}`,`./core/pdf-engine.js?v=${VERSION}`,`./core/classic-offer-pdf-v1767.js?v=${VERSION}`,`./core/developer-console-v1768.js?v=${VERSION}`,`./core/offer-workspace-v1769.js?v=${VERSION}`,`./legacy/bootstrap.js?v=${VERSION}`,`./app-runtime.js?v=${VERSION}`,
+  `./core/sun-safe.js?v=${VERSION}`,`./core/performance.js?v=${VERSION}`,`./core/login-signature-v1776.js?v=${VERSION}`,`./core/data-layer-v1773.js?v=${VERSION}`,`./core/server-automation-v1770.js?v=${VERSION}`,`./core/hotfix-v1763.js?v=${VERSION}`,`./core/ops-ux-v1762.js?v=${VERSION}`,`./core/ux-fixes-v1764.js?v=${VERSION}`,`./core/pdf-engine.js?v=${VERSION}`,`./core/classic-offer-pdf-v1767.js?v=${VERSION}`,`./core/developer-console-v1768.js?v=${VERSION}`,`./core/offer-workspace-v1769.js?v=${VERSION}`,`./legacy/bootstrap.js?v=${VERSION}`,`./app-runtime.js?v=${VERSION}`,
   './offer-gallery/001.jpg','./offer-gallery/002.jpg',
   './catalog/001.jpg','./catalog/002.jpg','./catalog/003.jpg',
-  './sun-logo.png','./caterium-login-logo.png','./pwa-icon-192.png','./pwa-icon-512.png','./manifest.webmanifest',
+  './sun-logo.png','./caterium-login-logo.png','./caterium-mark-light.svg','./pwa-icon-192.png','./pwa-icon-512.png','./manifest.webmanifest',
   './offer-templates/thumb-light.jpg','./offer-templates/thumb-editorial-grid.jpg','./offer-templates/thumb-midnight-glass.jpg','./offer-templates/thumb-emerald-gold.jpg'
 ];
+const CRITICAL_FRESH=new Set([
+  '/core/performance.js',
+  '/core/login-signature-v1776.js',
+  '/core/auth-security-v1774.js',
+  '/legacy/bootstrap.js',
+  '/app-runtime.js'
+]);
 self.addEventListener('install',event=>{
   event.waitUntil(caches.open(CACHE).then(cache=>cache.addAll(CORE)).then(()=>self.skipWaiting()));
 });
@@ -18,15 +25,23 @@ function cachePut(req,res){
   if(res&&res.ok){const clone=res.clone();caches.open(CACHE).then(c=>c.put(req,clone)).catch(()=>{});}return res;
 }
 function networkFirst(req,fallback){
-  return fetch(req).then(res=>cachePut(req,res)).catch(()=>caches.match(req).then(hit=>hit||caches.match(fallback||req)));
+  return fetch(req,{cache:'no-store'}).then(res=>cachePut(req,res)).catch(()=>caches.match(req).then(hit=>hit||caches.match(fallback||req)));
+}
+function forceFresh(req){
+  const url=new URL(req.url);
+  url.searchParams.set('__caterium_release',VERSION);
+  return fetch(url.toString(),{cache:'no-store',credentials:'same-origin'}).then(res=>cachePut(req,res)).catch(()=>caches.match(req));
 }
 self.addEventListener('fetch',event=>{
   const req=event.request;if(req.method!=='GET')return;
   const url=new URL(req.url);if(url.pathname.startsWith('/api/'))return;
   if(req.mode==='navigate'){
-    event.respondWith(fetch(req).then(res=>{const clone=res.clone();caches.open(CACHE).then(c=>c.put('./index.html',clone)).catch(()=>{});return res}).catch(()=>caches.match('./index.html')));return;
+    event.respondWith(fetch(req,{cache:'no-store'}).then(res=>{const clone=res.clone();caches.open(CACHE).then(c=>c.put('./index.html',clone)).catch(()=>{});return res}).catch(()=>caches.match('./index.html')));return;
+  }
+  if(CRITICAL_FRESH.has(url.pathname)){
+    event.respondWith(forceFresh(req));return;
   }
   const freshAsset=/\.(?:js|css|webmanifest)$/i.test(url.pathname);
   if(freshAsset){event.respondWith(networkFirst(req));return;}
-  event.respondWith(caches.match(req).then(cached=>cached||fetch(req).then(res=>cachePut(req,res))));
+  event.respondWith(caches.match(req).then(cached=>cached||fetch(req,{cache:'no-store'}).then(res=>cachePut(req,res))));
 });