Found while doing plan step 46: withoutFontFace() searched the raw bundle, so the `@font-face` that foundation/base.css's and error-page.css's header comments mention read as the rule. Each cut from inside its comment to the end of the next block and left the comment open, so the no-build fallback lost base.css's html rule and icon.css's rules. The search and the brace count now read Stylesheets::mask(), and only tokens/font.css's real block leaves. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>