Clean coherent rebuild: hero with image, normal features, proper proportions

Stop experimenting. Just a normal well-built website:
- Hero: text left, screenshot right, normal size
- Features: 3-col grid with icon/title/description
- Screenshots: 2x2 grid, small with captions
- CTA: navy background, white button
- Footer: 3-col with links
Normal proportions, nothing oversized, nothing weird.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>