--app-font-size was still 100% (16px), disconnected from the type scale tokens. Now references var(--text-base) so the 14px enterprise baseline actually takes effect. Remove empty responsive @media font-size placeholders in variables.base.css and raw heading size overrides in app-shell.css that fought the clamp()-based tokens. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>