CSS @import and url() references resolve to existing files

An @import './variables.css' or url('/fonts/Inter.woff2') pointing at a file that does not exist produces no build error in most setups — the bundler emits a warning, the missing font falls back to the system default, and the broken background shows as a color block. The regression is invisible in code review and invisible in the build log, but the rendered page loses the typography and visuals the design system intended. AI-generated CSS especially drifts this way when the model hallucinates font filenames.

Open the flagged CSS file and for each unresolved reference either create the file at the path or correct the path to an existing one. A typical Next.js src/app/globals.css layout:

@import "tailwindcss";
@import './design-tokens.css';

@font-face {
  font-family: 'Inter';
  src: url('/fonts/Inter-Regular.woff2') format('woff2');
}

Confirm the font file sits at public/fonts/Inter-Regular.woff2.