An <x-group> segment is a plain label, 32px or 40px tall, with nothing reaching past it, and nothing gave a connected <x-button-group> its 48dp minimum width either — both numbers M3 names and tells you not to reduce. The segment now carries the shared `touch-target` utility and a 48px floor, and groups.css puts the floor on the buttons a caller nests in a connected group. <x-button> drops its hand-rolled ::after for the same utility. Plan step 11, actions.md ACT-05. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9