Build a blog website theme with:
- Homepage: featured post (large), recent posts grid (6 posts)
- Post cards with image placeholder, category tag, title, excerpt, date
- Categories sidebar or filter bar
- Single post layout with large title, meta info, content area with good typography
- Dark mode toggle that remembers preference
- Responsive design
Use placeholder content. Make the typography excellent for reading (proper line-height, max-width, font choices). Put in ~/data/public/