- Comment out Tailwind nav links in header and sidebar
- Comment out Tailwind card on landing page
- Remove tailwind from router SECTIONS array
- Remove tailwind from landing page progress tracking
Tailwind content and styles remain in codebase for easy re-enabling.
- Add markdown-basics module with lessons for headings, text formatting,
lists, links, and inline code
- Integrate markdown section with blue color theme (#5b8dd9)
- Add markdown mode support in CodeEditor and LessonEngine
- Add markdown preview rendering using marked library
- Add section overview page with educational content
- Add markdown reference page with syntax guide
- Add i18n translations for 6 languages (EN, DE, PL, ES, AR, UK)
- Update router to recognize #markdown as section route
- Add all section-specific CSS styles for markdown theme
- Add computeLessonDifficulty function to determine lesson difficulty
based on selector complexity (easy/medium/hard)
- Display difficulty badge with bar indicator in lesson title row
- Add mobile navigation links (CSS, HTML, Tailwind) to sidebar
- Add mobile auth trigger button in sidebar
- Redesign settings section with card layout and native toggles
- Add difficulty translations for all 6 languages
- Fix module pill overflow on narrow screens
- Visit #de to switch to German and go to home
- Visit #pl for Polish, #es for Spanish, #ar for Arabic, #uk for Ukrainian
- Language is persisted to localStorage
- URL is cleaned up after switching (hash removed)
- Add share button with SVG link icon in lesson title row
- Create share dialog with copy URL functionality
- Implement URL hash-based routing for lesson navigation
- Support browser back/forward navigation
- Add i18n translations for share dialog in all languages
- Position share button between title and completion badge
- Add RTL support for title row layout
🤖 Generated with [Claude Code](https://claude.com/claude-code)
- Add lesson indicator pill to header (visible on desktop only)
- Logo stays centered, pill on left with burger menu
- Replace emoji arrows with CSS triangles for iOS compatibility
- Use native <details>/<summary> for expand/collapse
- Update tests for new implementation
- Wrap lesson label in span for mobile hiding
- Truncate module name with ellipsis if too long
- Hide "Lesson/Lektion" label on mobile, show only "1 / 3"
- Add lessonLabel i18n keys for EN/DE
- Create i18n.js module with EN/DE translations
- Add data-i18n attributes to index.html for dynamic text
- Update renderer.js to use translation functions
- Language switcher button replaces link to German page
- Stores preference in localStorage, detects browser language
- Add skip-to-content link for keyboard users
- Convert module headers and lesson items from divs to buttons
- Add ARIA attributes (aria-expanded, aria-controls, aria-label)
- Add focus return to trigger element when closing sidebar
- Shift main content when sidebar is open using CSS :has()
- Add code element styling in instruction boxes
- Add HTML mode support with new validation types (element_exists,
element_count, attribute_value, element_text, parent_child, sibling)
- Create 3 HTML lesson modules: Elements, Forms Basic, Forms Validation
- Implement side-by-side preview comparison (Your Output vs Expected)
- Add merge animation with "Perfect Match!" overlay on validation success
- Render expected output from solutionCode field in lesson JSON
- Update schema to support HTML mode and solutionCode
- Reorder modules: HTML first, then CSS, then Tailwind
- Update tests for new functionality
