A chapter's lesson now shows one page at a time: each section, then a Recap page with the key takeaways, the videos and the quick check. The header card names the path and the chapter's place, counts the pages, says how many minutes are left, and has a pill for each page. Previous and Next sit at the end of every page, and the page you are on stays in the address, so a reload or a shared link opens it again.
When you scroll past the header card, a slim row takes the tab row's place with the way back to the roadmap and the same progress and pills. The roadmap, Projects, Interview prep and every chapter now share one tab row: Roadmap, Pre-check, Chapter, Projects and Interview prep.
The listen bar reads the section you are on in your browser's own voice. You can pause it and carry on, and choose 1×, 1.25×, 1.5× or 2×. A video shows a cover first and loads only when you press play. On a phone, the tabs, pills and buttons are at least 44px tall.