Adds two desktop breakpoints (900px, 1400px) that progressively
increase card width (290→340→400px), logo size (40→48→56px), score
font size (1.6→1.9→2.2rem), and team name size. Adds max-width on
main to keep layout centred on ultra-wide screens.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>