The scan/record button row used justify-between, spreading the two button groups to opposite ends instead of sitting next to each other. Also made the record-controls row and each device card's header wrap instead of overflowing on narrow screens. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WzyfRyA7h5rs5SCAahLAWd