Build a modern blog theme called "Readable" with clean typography.
- Homepage: featured post hero (full-width with overlay), 6 recent posts in a grid
- Post cards: image, category tag (colored), title, excerpt, read time, date
- Categories bar: All, Technology, Design, Startup, Productivity
- Single post view with large header image, reading progress bar, author bio
- Sidebar: search, popular posts, newsletter signup
- Dark mode toggle in nav that actually works
- Footer with about, categories, social links
Design: white (#fff) with dark text, accent indigo (#4f46e5), font: Inter for body, serif for headings. Focus on readability — max-width 680px for article text.