- Move Pi Extensions Manager package UI base styles outside the mobile media query so desktop/tablet renders correctly
- Fix focus-visible rules from outline: 2px solid var(--focus-ring-strong) to box-shadow: var(--focus-ring-strong)
- Keep only mobile-specific overrides (gap, padding, max-width) inside @media (max-width: 768px)
- Remove duplicate CSS sections that resulted from previous edits