Breakpoints at 600px (tablet) and 420px (mobile):
- Header: smaller emblem and title on mobile
- StandingsTable: hide DV/DT/Vorm at 600px, also W/D/L at 420px
- TeamMatchesModal: bottom sheet on mobile, hide matchday column
- CompetitionPicker: smaller buttons, hide country label on mobile
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Vite + React app using football-data.org API to display standings
and match details for 12 competitions. Supports competition switching,
team match history modal, and Vite proxy to handle CORS.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
