diff --git a/public/campaign-icons/apple-touch-icon.png b/public/campaign-icons/apple-touch-icon.png
new file mode 100644
index 00000000..7ad1be1b
Binary files /dev/null and b/public/campaign-icons/apple-touch-icon.png differ
diff --git a/public/campaign-icons/icon-192.png b/public/campaign-icons/icon-192.png
new file mode 100644
index 00000000..1e1f8560
Binary files /dev/null and b/public/campaign-icons/icon-192.png differ
diff --git a/public/campaign-icons/icon-512.png b/public/campaign-icons/icon-512.png
new file mode 100644
index 00000000..3f73342b
Binary files /dev/null and b/public/campaign-icons/icon-512.png differ
diff --git a/public/campaign-icons/icon-maskable-512.png b/public/campaign-icons/icon-maskable-512.png
new file mode 100644
index 00000000..f149edb5
Binary files /dev/null and b/public/campaign-icons/icon-maskable-512.png differ
diff --git a/src/app/(campaign)/campanha/(app)/layout.tsx b/src/app/(campaign)/campanha/(app)/layout.tsx
index 0ed58918..08b70ce4 100644
--- a/src/app/(campaign)/campanha/(app)/layout.tsx
+++ b/src/app/(campaign)/campanha/(app)/layout.tsx
@@ -3,6 +3,7 @@ import React from 'react'
 
 import { CampaignBottomNav } from '@/components/campaign/CampaignBottomNav'
 import { CampaignSidebar } from '@/components/campaign/CampaignSidebar'
+import { InstallPwaToast } from '@/components/campaign/InstallPwaToast'
 import { SidebarInset, SidebarProvider, SidebarTrigger } from '@/components/ui/Sidebar'
 import { Toaster } from '@/components/ui/Toaster'
 import { getCampaignUser } from '@/utilities/campaignAuth'
@@ -38,6 +39,7 @@ export default async function CampaignAppLayout({ children }: { children: React.
         </div>
         <CampaignBottomNav role={user.role} />
         <Toaster position="top-center" />
+        <InstallPwaToast />
       </SidebarInset>
     </SidebarProvider>
   )
diff --git a/src/app/(campaign)/campanha/manifest.webmanifest/route.ts b/src/app/(campaign)/campanha/manifest.webmanifest/route.ts
new file mode 100644
index 00000000..ffc2b243
--- /dev/null
+++ b/src/app/(campaign)/campanha/manifest.webmanifest/route.ts
@@ -0,0 +1,14 @@
+import { NextResponse } from 'next/server'
+
+import { CAMPAIGN_WEB_MANIFEST } from '@/utilities/campaignPwa'
+
+export const dynamic = 'force-static'
+
+export function GET(): NextResponse {
+  return NextResponse.json(CAMPAIGN_WEB_MANIFEST, {
+    headers: {
+      'Content-Type': 'application/manifest+json; charset=utf-8',
+      'Cache-Control': 'no-cache',
+    },
+  })
+}
diff --git a/src/app/(campaign)/campanha/offline/page.tsx b/src/app/(campaign)/campanha/offline/page.tsx
new file mode 100644
index 00000000..d5f01ecf
--- /dev/null
+++ b/src/app/(campaign)/campanha/offline/page.tsx
@@ -0,0 +1,35 @@
+import { WifiOff } from 'lucide-react'
+import type { Metadata } from 'next'
+import Link from 'next/link'
+
+import { Button } from '@/components/ui/button'
+
+export const metadata: Metadata = {
+  title: 'Offline | Campanha',
+  robots: {
+    index: false,
+    follow: false,
+  },
+}
+
+export default function CampaignOfflinePage() {
+  return (
+    <main className="flex min-h-svh flex-col items-center justify-center gap-6 bg-muted p-6">
+      <div className="flex w-full max-w-sm flex-col items-center gap-4 text-center">
+        <div className="flex size-12 items-center justify-center rounded-full bg-primary text-primary-foreground">
+          <WifiOff className="size-6" aria-hidden="true" />
+        </div>
+        <div className="space-y-2">
+          <h1 className="text-xl font-semibold text-foreground">Você está offline</h1>
+          <p className="text-sm text-muted-foreground">
+            Sem conexão no momento. Abra novamente quando a rede voltar, ou tente uma página que
+            você já visitou nesta sessão.
+          </p>
+        </div>
+        <Button asChild className="min-h-11">
+          <Link href="/campanha">Tentar novamente</Link>
+        </Button>
+      </div>
+    </main>
+  )
+}
diff --git a/src/app/(campaign)/campanha/sw.js/route.ts b/src/app/(campaign)/campanha/sw.js/route.ts
new file mode 100644
index 00000000..ac8523a2
--- /dev/null
+++ b/src/app/(campaign)/campanha/sw.js/route.ts
@@ -0,0 +1,22 @@
+import { NextResponse } from 'next/server'
+
+import {
+  buildCampaignServiceWorkerScript,
+  CAMPAIGN_PWA_SCOPE,
+  resolveCampaignPwaBuildId,
+} from '@/utilities/campaignPwa'
+
+// Built once per deploy; build id in the script body still invalidates SW updates.
+export const dynamic = 'force-static'
+
+export function GET(): NextResponse {
+  const script = buildCampaignServiceWorkerScript(resolveCampaignPwaBuildId())
+
+  return new NextResponse(script, {
+    headers: {
+      'Content-Type': 'text/javascript; charset=utf-8',
+      'Cache-Control': 'no-cache',
+      'Service-Worker-Allowed': CAMPAIGN_PWA_SCOPE,
+    },
+  })
+}
diff --git a/src/app/(campaign)/layout.tsx b/src/app/(campaign)/layout.tsx
index 0f7d9d84..01962fe3 100644
--- a/src/app/(campaign)/layout.tsx
+++ b/src/app/(campaign)/layout.tsx
@@ -1,8 +1,10 @@
-import type { Metadata } from 'next'
+import type { Metadata, Viewport } from 'next'
 import { Inter } from 'next/font/google'
 import React from 'react'
 
+import { RegisterServiceWorker } from '@/components/campaign/RegisterServiceWorker'
 import { VoteEstimateFocusProvider } from '@/components/campaign/VoteEstimateFocusProvider'
+import { CAMPAIGN_PWA_MANIFEST_PATH, CAMPAIGN_PWA_THEME_COLOR } from '@/utilities/campaignPwa'
 
 import '../(frontend)/styles.css'
 
@@ -14,6 +16,19 @@ export const metadata: Metadata = {
     index: false,
     follow: false,
   },
+  manifest: CAMPAIGN_PWA_MANIFEST_PATH,
+  appleWebApp: {
+    capable: true,
+    title: 'Campanha',
+    statusBarStyle: 'default',
+  },
+  icons: {
+    apple: '/campaign-icons/apple-touch-icon.png',
+  },
+}
+
+export const viewport: Viewport = {
+  themeColor: CAMPAIGN_PWA_THEME_COLOR,
 }
 
 export default function CampanhaRootLayout({ children }: { children: React.ReactNode }) {
@@ -26,6 +41,7 @@ export default function CampanhaRootLayout({ children }: { children: React.React
     >
       <body className="bg-background bg-none text-foreground antialiased">
         <VoteEstimateFocusProvider>{children}</VoteEstimateFocusProvider>
+        <RegisterServiceWorker />
       </body>
     </html>
   )
diff --git a/src/components/campaign/CampaignSidebar.tsx b/src/components/campaign/CampaignSidebar.tsx
index 528bece8..c79abda5 100644
--- a/src/components/campaign/CampaignSidebar.tsx
+++ b/src/components/campaign/CampaignSidebar.tsx
@@ -1,5 +1,6 @@
 'use client'
 
+import type { FormEvent } from 'react'
 import Link from 'next/link'
 import { usePathname } from 'next/navigation'
 
@@ -21,6 +22,7 @@ import {
   useSidebar,
 } from '@/components/ui/Sidebar'
 import type { CampaignUser } from '@/payload-types'
+import { clearCampaignPwaCaches } from '@/utilities/campaignPwaClient'
 
 export type CampaignSidebarUser = {
   name: string
@@ -38,6 +40,12 @@ export const CampaignSidebar = ({ user }: { user: CampaignSidebarUser }) => {
   const pathname = usePathname()
   const { isMobile, setOpenMobile } = useSidebar()
 
+  const handleLogout = async (event: FormEvent<HTMLFormElement>) => {
+    event.preventDefault()
+    await clearCampaignPwaCaches()
+    await logoutCampaign()
+  }
+
   return (
     <Sidebar collapsible="none" className="h-svh shrink-0 border-r border-sidebar-border">
       <SidebarHeader className="border-b border-sidebar-border">
@@ -82,7 +90,7 @@ export const CampaignSidebar = ({ user }: { user: CampaignSidebarUser }) => {
             <span className="truncate text-xs text-muted-foreground">{user.email}</span>
           ) : null}
         </div>
-        <form action={logoutCampaign}>
+        <form action={logoutCampaign} onSubmit={handleLogout}>
           <Button
             type="submit"
             variant="outline"
diff --git a/src/components/campaign/InstallPwaToast.tsx b/src/components/campaign/InstallPwaToast.tsx
new file mode 100644
index 00000000..122ed6eb
--- /dev/null
+++ b/src/components/campaign/InstallPwaToast.tsx
@@ -0,0 +1,150 @@
+'use client'
+
+import { useEffect, useRef, useState } from 'react'
+import { toast } from 'sonner'
+
+import { Button } from '@/components/ui/button'
+import {
+  Drawer,
+  DrawerClose,
+  DrawerContent,
+  DrawerDescription,
+  DrawerFooter,
+  DrawerHeader,
+  DrawerTitle,
+} from '@/components/ui/Drawer'
+import { CAMPAIGN_PWA_INSTALL_TOAST_KEY } from '@/utilities/campaignPwa'
+
+type BeforeInstallPromptEvent = Event & {
+  prompt: () => Promise<void>
+  userChoice: Promise<{ outcome: 'accepted' | 'dismissed'; platform: string }>
+}
+
+const TOAST_ID = 'campaign-pwa-install'
+
+const isMobileViewport = (): boolean =>
+  window.matchMedia('(pointer: coarse)').matches || window.matchMedia('(max-width: 768px)').matches
+
+const isStandaloneDisplay = (): boolean => {
+  const standaloneMedia = window.matchMedia('(display-mode: standalone)').matches
+  const iosStandalone = Boolean((navigator as Navigator & { standalone?: boolean }).standalone)
+  return standaloneMedia || iosStandalone
+}
+
+const wasDismissedThisSession = (): boolean => {
+  try {
+    return sessionStorage.getItem(CAMPAIGN_PWA_INSTALL_TOAST_KEY) === '1'
+  } catch {
+    // sessionStorage can throw in private mode.
+    return false
+  }
+}
+
+const markDismissedThisSession = (): void => {
+  try {
+    sessionStorage.setItem(CAMPAIGN_PWA_INSTALL_TOAST_KEY, '1')
+  } catch {
+    // Ignore quota / private-mode failures.
+  }
+}
+
+const isIosSafari = (): boolean => {
+  const ua = navigator.userAgent
+  const isIos =
+    /iPad|iPhone|iPod/.test(ua) || (navigator.platform === 'MacIntel' && navigator.maxTouchPoints > 1)
+  return isIos && /WebKit/.test(ua) && !/CriOS|FxiOS|EdgiOS/.test(ua)
+}
+
+const dismissInstallToast = (): void => {
+  markDismissedThisSession()
+  toast.dismiss(TOAST_ID)
+}
+
+export const InstallPwaToast = () => {
+  const deferredPromptRef = useRef<BeforeInstallPromptEvent | null>(null)
+  const [iosDrawerOpen, setIosDrawerOpen] = useState(false)
+
+  useEffect(() => {
+    const onBeforeInstallPrompt = (event: Event) => {
+      event.preventDefault()
+      deferredPromptRef.current = event as BeforeInstallPromptEvent
+    }
+
+    window.addEventListener('beforeinstallprompt', onBeforeInstallPrompt)
+    return () => window.removeEventListener('beforeinstallprompt', onBeforeInstallPrompt)
+  }, [])
+
+  useEffect(() => {
+    if (!isMobileViewport() || isStandaloneDisplay() || wasDismissedThisSession()) return
+
+    const installAndroid = async () => {
+      const promptEvent = deferredPromptRef.current
+      if (!promptEvent) return
+      try {
+        await promptEvent.prompt()
+        const choice = await promptEvent.userChoice
+        if (choice.outcome === 'accepted') dismissInstallToast()
+      } catch {
+        // Native install prompt dismissed or rejected.
+      }
+    }
+
+    // Wait briefly so `beforeinstallprompt` can arrive after SW registration.
+    const timer = window.setTimeout(() => {
+      if (isStandaloneDisplay() || wasDismissedThisSession()) return
+
+      const hasPrompt = deferredPromptRef.current != null
+      if (!hasPrompt && !isIosSafari()) return
+
+      toast.message('Instale o app da campanha', {
+        id: TOAST_ID,
+        description: 'Acesse mais rápido e receba avisos',
+        duration: Infinity,
+        closeButton: true,
+        onDismiss: markDismissedThisSession,
+        action: {
+          label: hasPrompt ? 'Instalar' : 'Como instalar',
+          onClick: () => {
+            if (hasPrompt) {
+              void installAndroid()
+              return
+            }
+            setIosDrawerOpen(true)
+          },
+        },
+      })
+    }, 1200)
+
+    return () => {
+      window.clearTimeout(timer)
+      toast.dismiss(TOAST_ID)
+    }
+  }, [])
+
+  return (
+    <Drawer open={iosDrawerOpen} onOpenChange={setIosDrawerOpen}>
+      <DrawerContent>
+        <DrawerHeader>
+          <DrawerTitle>Como instalar no iPhone</DrawerTitle>
+          <DrawerDescription>
+            No Safari, use o menu de compartilhamento para adicionar o app à Tela de Início.
+          </DrawerDescription>
+        </DrawerHeader>
+        <ol className="list-decimal space-y-2 px-4 pb-2 text-left text-sm text-foreground">
+          <li>Toque no botão Compartilhar (quadrado com seta para cima).</li>
+          <li>Role e toque em &quot;Adicionar à Tela de Início&quot;.</li>
+          <li>Confirme tocando em Adicionar.</li>
+        </ol>
+        <DrawerFooter>
+          <DrawerClose
+            render={
+              <Button type="button" variant="outline" className="w-full" onClick={dismissInstallToast} />
+            }
+          >
+            Entendi
+          </DrawerClose>
+        </DrawerFooter>
+      </DrawerContent>
+    </Drawer>
+  )
+}
diff --git a/src/components/campaign/RegisterServiceWorker.tsx b/src/components/campaign/RegisterServiceWorker.tsx
new file mode 100644
index 00000000..524b33a7
--- /dev/null
+++ b/src/components/campaign/RegisterServiceWorker.tsx
@@ -0,0 +1,20 @@
+'use client'
+
+import { useEffect } from 'react'
+
+import { CAMPAIGN_PWA_SCOPE, CAMPAIGN_PWA_SW_PATH } from '@/utilities/campaignPwa'
+
+export const RegisterServiceWorker = () => {
+  useEffect(() => {
+    if (process.env.NODE_ENV !== 'production') return
+    if (!('serviceWorker' in navigator)) return
+
+    void navigator.serviceWorker
+      .register(CAMPAIGN_PWA_SW_PATH, { scope: CAMPAIGN_PWA_SCOPE })
+      .catch(() => {
+        // Registration failures must never break the campaign UI.
+      })
+  }, [])
+
+  return null
+}
diff --git a/src/utilities/campaignPwa.ts b/src/utilities/campaignPwa.ts
new file mode 100644
index 00000000..f9f3aafd
--- /dev/null
+++ b/src/utilities/campaignPwa.ts
@@ -0,0 +1,191 @@
+export const CAMPAIGN_PWA_SCOPE = '/campanha'
+export const CAMPAIGN_PWA_MANIFEST_PATH = '/campanha/manifest.webmanifest'
+export const CAMPAIGN_PWA_SW_PATH = '/campanha/sw.js'
+export const CAMPAIGN_PWA_THEME_COLOR = '#c51414'
+export const CAMPAIGN_PWA_BACKGROUND_COLOR = '#ffffff'
+export const CAMPAIGN_CACHE_PREFIX = 'campanha-'
+export const CAMPAIGN_PWA_INSTALL_TOAST_KEY = 'pwa-install-toast-dismissed'
+export const CAMPAIGN_PWA_CLEAR_CACHES_MESSAGE = 'clear-campaign-caches' as const
+
+const MANIFEST_ICONS = [
+  {
+    src: '/campaign-icons/icon-192.png',
+    sizes: '192x192',
+    type: 'image/png' as const,
+    purpose: 'any' as const,
+  },
+  {
+    src: '/campaign-icons/icon-512.png',
+    sizes: '512x512',
+    type: 'image/png' as const,
+    purpose: 'any' as const,
+  },
+  {
+    src: '/campaign-icons/icon-maskable-512.png',
+    sizes: '512x512',
+    type: 'image/png' as const,
+    purpose: 'maskable' as const,
+  },
+]
+
+/** Precache list: manifest icons + apple-touch (not in the web manifest). */
+export const CAMPAIGN_PWA_ICON_PATHS = [
+  ...MANIFEST_ICONS.map((icon) => icon.src),
+  '/campaign-icons/apple-touch-icon.png',
+] as const
+
+export type CampaignWebManifest = {
+  name: string
+  short_name: string
+  description: string
+  start_url: string
+  scope: string
+  display: 'standalone'
+  lang: string
+  theme_color: string
+  background_color: string
+  icons: typeof MANIFEST_ICONS
+}
+
+export const CAMPAIGN_WEB_MANIFEST: CampaignWebManifest = {
+  name: 'Campanha Jorge Solla',
+  short_name: 'Campanha',
+  description: 'Ferramenta de campo da campanha Jorge Solla',
+  start_url: CAMPAIGN_PWA_SCOPE,
+  scope: CAMPAIGN_PWA_SCOPE,
+  display: 'standalone',
+  lang: 'pt-BR',
+  theme_color: CAMPAIGN_PWA_THEME_COLOR,
+  background_color: CAMPAIGN_PWA_BACKGROUND_COLOR,
+  icons: MANIFEST_ICONS,
+}
+
+export const resolveCampaignPwaBuildId = (
+  env: Record<string, string | undefined> = process.env,
+): string => env.VERCEL_GIT_COMMIT_SHA || env.VERCEL_DEPLOYMENT_ID || 'dev'
+
+export const buildCampaignServiceWorkerScript = (buildId: string): string => {
+  const cacheName = `${CAMPAIGN_CACHE_PREFIX}${buildId}`
+  const precache = JSON.stringify([
+    `${CAMPAIGN_PWA_SCOPE}/login`,
+    `${CAMPAIGN_PWA_SCOPE}/offline`,
+    ...CAMPAIGN_PWA_ICON_PATHS,
+  ])
+
+  return `/* Campaign PWA service worker — build ${buildId} */
+const CACHE_NAME = ${JSON.stringify(cacheName)};
+const CACHE_PREFIX = ${JSON.stringify(CAMPAIGN_CACHE_PREFIX)};
+const PRECACHE_URLS = ${precache};
+const CLEAR_CACHES_MESSAGE = ${JSON.stringify(CAMPAIGN_PWA_CLEAR_CACHES_MESSAGE)};
+const SCOPE = ${JSON.stringify(CAMPAIGN_PWA_SCOPE)};
+const OFFLINE_URL = SCOPE + '/offline';
+
+self.addEventListener('install', (event) => {
+  event.waitUntil(
+    caches
+      .open(CACHE_NAME)
+      .then((cache) => cache.addAll(PRECACHE_URLS))
+      .then(() => self.skipWaiting()),
+  );
+});
+
+self.addEventListener('activate', (event) => {
+  event.waitUntil(
+    caches
+      .keys()
+      .then((keys) =>
+        Promise.all(
+          keys
+            .filter((key) => key.startsWith(CACHE_PREFIX) && key !== CACHE_NAME)
+            .map((key) => caches.delete(key)),
+        ),
+      )
+      .then(() => self.clients.claim()),
+  );
+});
+
+self.addEventListener('message', (event) => {
+  if (event.data && event.data.type === CLEAR_CACHES_MESSAGE) {
+    event.waitUntil(
+      caches
+        .keys()
+        .then((keys) =>
+          Promise.all(keys.filter((key) => key.startsWith(CACHE_PREFIX)).map((key) => caches.delete(key))),
+        ),
+    );
+  }
+});
+
+const isCampaignPath = (pathname) =>
+  pathname === SCOPE || pathname.startsWith(SCOPE + '/');
+
+const isInvitePath = (pathname) => pathname.startsWith(SCOPE + '/convite');
+
+const isCampaignIconPath = (pathname) => pathname.startsWith('/campaign-icons/');
+
+const isRscRequest = (request) =>
+  request.headers.get('RSC') === '1' || request.headers.has('Next-Router-State-Tree');
+
+const cacheFirst = async (request) => {
+  const cached = await caches.match(request);
+  if (cached) return cached;
+  const response = await fetch(request);
+  if (response && response.ok) {
+    const cache = await caches.open(CACHE_NAME);
+    cache.put(request, response.clone());
+  }
+  return response;
+};
+
+const networkFirst = async (request, { navigate = false } = {}) => {
+  try {
+    const response = await fetch(request);
+    if (response && response.ok && !isRscRequest(request)) {
+      const cache = await caches.open(CACHE_NAME);
+      cache.put(request, response.clone());
+    }
+    return response;
+  } catch {
+    const cached = await caches.match(request);
+    if (cached) return cached;
+    if (!navigate) throw new Error('offline');
+    const offline = await caches.match(OFFLINE_URL);
+    if (offline) return offline;
+    return new Response('Offline', {
+      status: 503,
+      headers: { 'Content-Type': 'text/plain; charset=utf-8' },
+    });
+  }
+};
+
+self.addEventListener('fetch', (event) => {
+  const request = event.request;
+  if (request.method !== 'GET') return;
+
+  const url = new URL(request.url);
+  if (url.origin !== self.location.origin) return;
+
+  // Invite pages are force-no-store and must never be cached.
+  if (isInvitePath(url.pathname)) return;
+
+  if (isCampaignIconPath(url.pathname)) {
+    event.respondWith(cacheFirst(request));
+    return;
+  }
+
+  if (!isCampaignPath(url.pathname)) return;
+
+  if (request.mode === 'navigate') {
+    event.respondWith(networkFirst(request, { navigate: true }));
+    return;
+  }
+
+  // RSC/Flight GETs: network-only (never write personalized payloads to Cache Storage).
+  if (isRscRequest(request)) return;
+
+  event.respondWith(networkFirst(request));
+});
+
+// Push / notificationclick handlers land in D2 (notifications.md).
+`
+}
diff --git a/src/utilities/campaignPwaClient.ts b/src/utilities/campaignPwaClient.ts
new file mode 100644
index 00000000..bf627074
--- /dev/null
+++ b/src/utilities/campaignPwaClient.ts
@@ -0,0 +1,28 @@
+import {
+  CAMPAIGN_CACHE_PREFIX,
+  CAMPAIGN_PWA_CLEAR_CACHES_MESSAGE,
+} from '@/utilities/campaignPwa'
+
+/** Best-effort Cache API wipe on logout. SW cannot be messaged from a server action. */
+export const clearCampaignPwaCaches = async (): Promise<void> => {
+  try {
+    if (!('caches' in window)) return
+    const keys = await caches.keys()
+    await Promise.all(
+      keys
+        .filter((key) => key.startsWith(CAMPAIGN_CACHE_PREFIX))
+        .map((key) => caches.delete(key)),
+    )
+  } catch {
+    // Cache API can throw in private mode / when storage is unavailable.
+  }
+
+  // Notify an active SW so it can drop any in-flight cache work; page already wiped Storage.
+  try {
+    navigator.serviceWorker?.controller?.postMessage({
+      type: CAMPAIGN_PWA_CLEAR_CACHES_MESSAGE,
+    })
+  } catch {
+    // No controller, or postMessage rejected — safe to ignore.
+  }
+}
diff --git a/tests/e2e/campaign-pwa.e2e.spec.ts b/tests/e2e/campaign-pwa.e2e.spec.ts
new file mode 100644
index 00000000..0b5c0bbd
--- /dev/null
+++ b/tests/e2e/campaign-pwa.e2e.spec.ts
@@ -0,0 +1,35 @@
+/* eslint-disable check-file/filename-naming-convention */
+import { expect, test } from '@playwright/test'
+
+test.describe('Campaign PWA foundation', () => {
+  test('exposes manifest link and serves installable assets', async ({ page, request }) => {
+    await page.goto('/campanha/login')
+
+    await expect(page.locator('link[rel="manifest"]')).toHaveAttribute(
+      'href',
+      '/campanha/manifest.webmanifest',
+    )
+
+    const manifestResponse = await request.get('/campanha/manifest.webmanifest')
+    expect(manifestResponse.status()).toBe(200)
+    expect(manifestResponse.headers()['content-type']).toContain('application/manifest+json')
+    await expect(manifestResponse.json()).resolves.toMatchObject({
+      start_url: '/campanha',
+      scope: '/campanha',
+      display: 'standalone',
+    })
+
+    const swResponse = await request.get('/campanha/sw.js')
+    expect(swResponse.status()).toBe(200)
+    expect(swResponse.headers()['content-type']).toContain('text/javascript')
+    expect(swResponse.headers()['service-worker-allowed']).toBe('/campanha')
+    const swBody = await swResponse.text()
+    expect(swBody).toContain(`SCOPE + '/convite'`)
+    expect(swBody).toContain('/campanha/offline')
+    expect(swBody).toContain('isRscRequest')
+
+    await page.goto('/campanha/offline')
+    await expect(page.getByRole('heading', { name: 'Você está offline' })).toBeVisible()
+    await expect(page.getByRole('link', { name: 'Tentar novamente' })).toBeVisible()
+  })
+})
diff --git a/tests/unit/campaignPwa.unit.spec.ts b/tests/unit/campaignPwa.unit.spec.ts
new file mode 100644
index 00000000..3a0fe523
--- /dev/null
+++ b/tests/unit/campaignPwa.unit.spec.ts
@@ -0,0 +1,71 @@
+// @vitest-environment node
+
+import { describe, expect, it } from 'vitest'
+
+import { GET as getManifest } from '@/app/(campaign)/campanha/manifest.webmanifest/route'
+import { GET as getServiceWorker } from '@/app/(campaign)/campanha/sw.js/route'
+import {
+  buildCampaignServiceWorkerScript,
+  CAMPAIGN_CACHE_PREFIX,
+  CAMPAIGN_PWA_CLEAR_CACHES_MESSAGE,
+  CAMPAIGN_PWA_SCOPE,
+  CAMPAIGN_PWA_THEME_COLOR,
+  CAMPAIGN_WEB_MANIFEST,
+  resolveCampaignPwaBuildId,
+} from '@/utilities/campaignPwa'
+
+describe('campaign PWA helpers', () => {
+  it('builds a manifest scoped to /campanha without a trailing slash', () => {
+    expect(CAMPAIGN_WEB_MANIFEST.start_url).toBe(CAMPAIGN_PWA_SCOPE)
+    expect(CAMPAIGN_WEB_MANIFEST.scope).toBe(CAMPAIGN_PWA_SCOPE)
+    expect(CAMPAIGN_WEB_MANIFEST.start_url.endsWith('/')).toBe(false)
+    expect(CAMPAIGN_WEB_MANIFEST.scope.endsWith('/')).toBe(false)
+    expect(CAMPAIGN_WEB_MANIFEST.display).toBe('standalone')
+    expect(CAMPAIGN_WEB_MANIFEST.theme_color).toBe(CAMPAIGN_PWA_THEME_COLOR)
+    expect(CAMPAIGN_WEB_MANIFEST.icons.some((icon) => icon.purpose === 'maskable')).toBe(true)
+  })
+
+  it('resolves a stable build id from Vercel env with a local fallback', () => {
+    expect(resolveCampaignPwaBuildId({ VERCEL_GIT_COMMIT_SHA: 'abc123' })).toBe('abc123')
+    expect(resolveCampaignPwaBuildId({ VERCEL_DEPLOYMENT_ID: 'dpl_1' })).toBe('dpl_1')
+    expect(resolveCampaignPwaBuildId({})).toBe('dev')
+  })
+
+  it('embeds invite exclusion, RSC skip, cache prefix, and logout message in the SW script', () => {
+    const script = buildCampaignServiceWorkerScript('sha-test')
+
+    expect(script).toContain(`${CAMPAIGN_CACHE_PREFIX}sha-test`)
+    expect(script).toContain(`SCOPE + '/convite'`)
+    expect(script).toContain(CAMPAIGN_PWA_CLEAR_CACHES_MESSAGE)
+    expect(script).toContain(`${CAMPAIGN_PWA_SCOPE}/offline`)
+    expect(script).toContain('isRscRequest')
+    expect(script).toContain('skipWaiting')
+    expect(script).toContain('clients.claim')
+  })
+})
+
+describe('campaign PWA route handlers', () => {
+  it('serves the web manifest with the expected headers and body', async () => {
+    const response = getManifest()
+    const body = await response.json()
+
+    expect(response.status).toBe(200)
+    expect(response.headers.get('Content-Type')).toContain('application/manifest+json')
+    expect(response.headers.get('Cache-Control')).toBe('no-cache')
+    expect(body.scope).toBe('/campanha')
+    expect(body.start_url).toBe('/campanha')
+  })
+
+  it('serves the service worker with Service-Worker-Allowed scoped to /campanha', async () => {
+    const response = getServiceWorker()
+    const body = await response.text()
+
+    expect(response.status).toBe(200)
+    expect(response.headers.get('Content-Type')).toContain('text/javascript')
+    expect(response.headers.get('Cache-Control')).toBe('no-cache')
+    expect(response.headers.get('Service-Worker-Allowed')).toBe('/campanha')
+    expect(body).toContain('campanha-')
+    expect(body).toContain(`SCOPE + '/convite'`)
+    expect(body).toContain('isRscRequest')
+  })
+})