Update guest v2 branding and theming

resources/js/guest-v2/components/FabActionRing.tsx

@@ -2,7 +2,7 @@ import React from 'react';
 import { YStack, XStack } from '@tamagui/stacks';
 import { Button } from '@tamagui/button';
 import { SizableText as Text } from '@tamagui/text';
-import { useAppearance } from '@/hooks/use-appearance';
+import { useGuestThemeVariant } from '../lib/guestTheme';
 
 type FabAction = {
   key: string;
@@ -25,8 +25,7 @@ const positions = [
 ];
 
 export default function FabActionRing({ open, onOpenChange, actions }: FabActionRingProps) {
-  const { resolved } = useAppearance();
-  const isDark = resolved === 'dark';
+  const { isDark } = useGuestThemeVariant();
   const borderColor = isDark ? 'rgba(255,255,255,0.18)' : 'rgba(15, 23, 42, 0.12)';
   const surfaceColor = isDark ? 'rgba(12, 16, 32, 0.92)' : 'rgba(255, 255, 255, 0.95)';
   const textColor = isDark ? '#F8FAFF' : '#0F172A';