Update guest v2 branding and theming

resources/js/guest-v2/screens/UploadScreen.tsx

@@ -7,7 +7,7 @@ import AppShell from '../components/AppShell';
 import { useEventData } from '../context/EventDataContext';
 import { useOptionalGuestIdentity } from '../context/GuestIdentityContext';
 import { uploadPhoto, useUploadQueue } from '../services/uploadApi';
-import { useAppearance } from '@/hooks/use-appearance';
+import { useGuestThemeVariant } from '../lib/guestTheme';
 import { useNavigate, useSearchParams } from 'react-router-dom';
 import { useTranslation } from '@/guest/i18n/useTranslation';
 import { useGuestTaskProgress } from '@/guest/hooks/useGuestTaskProgress';
@@ -15,6 +15,7 @@ import { fetchPendingUploadsSummary, type PendingUpload } from '@/guest/services
 import { resolveUploadErrorDialog, type UploadErrorDialog } from '@/guest/lib/uploadErrorDialog';
 import { fetchTasks, type TaskItem } from '../services/tasksApi';
 import SurfaceCard from '../components/SurfaceCard';
+import { pushGuestToast } from '../lib/toast';
 
 function getTaskValue(task: TaskItem, key: string): string | undefined {
   const value = task?.[key as keyof TaskItem];
@@ -46,8 +47,7 @@ export default function UploadScreen() {
   const [mirror, setMirror] = React.useState(true);
   const [previewFile, setPreviewFile] = React.useState<File | null>(null);
   const [previewUrl, setPreviewUrl] = React.useState<string | null>(null);
-  const { resolved } = useAppearance();
-  const isDark = resolved === 'dark';
+  const { isDark } = useGuestThemeVariant();
   const cardBorder = isDark ? 'rgba(255, 255, 255, 0.12)' : 'rgba(15, 23, 42, 0.12)';
   const cardShadow = isDark ? '0 18px 40px rgba(2, 6, 23, 0.4)' : '0 16px 30px rgba(15, 23, 42, 0.12)';
   const iconColor = isDark ? '#F8FAFF' : '#0F172A';
@@ -186,6 +186,7 @@ export default function UploadScreen() {
       for (const file of files) {
         if (!navigator.onLine) {
           await enqueueFile(file);
+          pushGuestToast({ text: t('uploadV2.toast.queued', 'Offline — added to upload queue.'), type: 'info' });
           continue;
         }
 
@@ -204,6 +205,7 @@ export default function UploadScreen() {
           if (autoApprove) {
             void triggerConfetti();
           }
+          pushGuestToast({ text: t('uploadV2.toast.uploaded', 'Upload complete.'), type: 'success' });
           void loadPending();
         } catch (err) {
           const uploadErr = err as { code?: string; meta?: Record<string, unknown> };