Digital Library Ebook Reader App Note Margin

The image opens on digital library ebook reader app note margin, staged as a quiet literary digital product experience. Show reading text, highlight tools, margin notes, citation export, chapter navigation, and reading progress. Include highlight tools, margin notes, citation export, chapter navigation, and reading progress while keeping the product useful for readers and students. Make the hierarchy easy to scan, with meaningful labels, realistic microcopy, responsive spacing, hover or tap states, and accessible contrast. Add empty, loading, and error states where they would naturally appear, so the interface feels like a complete UI/UX case rather than a single decorative screen.