Premium 404 and route handling
A new not-found experience that feels like part of the product instead of a generic error page.
- Added a custom root 404 page for unmatched routes.
- Designed the page around the same editorial SaaS layout used on the homepage and download page.
- Added route-state cards, quick links, and mobile-friendly recovery actions.
- Kept the page noindex-friendly so broken routes do not become SEO targets.