Fix CSS Grid Layout Safari Compatibility Issues

I'm experiencing CSS Grid layout inconsistencies between browsers - it works correctly in Chrome but breaks in Safari. Browser Environment: - Chrome version: [version] ✓ Working - Safari version: [version] ✗ Breaking - iOS Safari: [yes/no, version if applicable] - Other browsers tested: [list] CSS Grid Code: [code] HTML Structure: [relevant HTML markup] Issue Description: - Expected behavior: [how it should look/work] - Safari behavior: [specific breakdown - overlapping, missing items, etc.] - Screenshots: [Chrome vs Safari comparison if possible] Grid Features Used: - [grid-template-areas, subgrid, auto-fit, etc.] - CSS custom properties: [yes/no] - Nested grids: [yes/no] Project Requirements: - Minimum Safari version to support: [version] - Fallback approach acceptable: [yes/no] - Can use CSS preprocessor: [yes/no] Please provide: 1. Root cause analysis of Safari compatibility issue 2. Safari-specific fixes with vendor prefixes if needed 3. Feature detection approach using @supports 4. Progressive enhancement strategy 5. Testing methodology for cross-browser Grid layouts