X_STYLES_GLOBAL_MISSING
Means
a surface renders documents whose CSS defines no :root custom properties
Typical cause
nothing in the app's module graph imports the global layer, so every var(--color-*) and var(--space-*) a component emits resolves to nothing and the browser drops the declaration
Fix
add apps/web/shared/global.scss containing @use '@ultimat3/ui/global.scss'; and apps/web/shared/global.ts containing import './global.scss'; — x new scaffolds both