Audit mobile layout at 375px and 430px

[just-shane]

File: index.html

Steps

• Open Chrome DevTools, set viewport to 375px (iPhone SE)
• Check: hero text wrapping, pricing grid (should be 1 column), stats strip, about grid, contact grid
• Check: nav — only the CTA button should show on mobile; other links hidden
• Fix any layout issues found
• Repeat at 430px (iPhone 15)