- Remove data-i18n="loading" from lesson title and module name
- Start with empty content instead of "Loading..." placeholder
- Remove data-i18n attribute after restoring cache to prevent overwrites
- Add contact section to help dialog with librete.ch, GitHub, Gitea, LinkedIn links
- Add HTML/CSS prefixes to English module titles for consistency with German
- Add CSS transitions for smooth lesson switching
- Add transitioning class to prevent content flash during lesson changes
- Module pill now in game-controls between prev/next buttons
- Level indicator (e.g. "1 of 3") inside the pill
- Updated pill styling for nav bar context
- Reorder modules by learning path: HTML first, then CSS, then Tailwind
- Group modules with comments for clarity
- Change footer link from GitHub to Gitea (librete.ch)
- Replace single quotes with <kbd> tags in validation messages
- German and English lessons updated for consistent formatting
- Move task instruction before description in UI (index.html)
- 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 module title pill above lesson title showing current category
- Enable next/prev buttons to cross module boundaries
- Automatically advance to next module when completing last lesson
- Go to last lesson of previous module when navigating back
- Convert help and reset modals to native <dialog> elements
- Content is now in HTML, not dynamically generated via JS
- Use dialog.showModal() and dialog.close() native API
- Dialog handles Escape key natively for closing
- Fix list indentation in help dialog with proper padding
- Add styled kbd elements for keyboard shortcuts
- Separate dialogs for help and reset confirmation
- Apply same changes to German version
Benefits:
- Better accessibility (native focus trapping, escape handling)
- Simpler JavaScript (no DOM manipulation for content)
- Content visible in HTML source for easier editing
- Native backdrop styling via ::backdrop
- Add language toggle button in header (EN/DE)
- Link directly to the other language version
- Style consistent with existing header buttons
- Accessible with proper aria-labels
- Add history extension to CodeMirror for undo/redo support
- Ctrl+Z for undo, Ctrl+Shift+Z for redo now work
- Add toolbar buttons: ↶ Undo, ↷ Redo, ⟲ Reset
- Reset button restores editor to initial lesson code
- Add .btn-icon and .editor-tools CSS styles
- Implement 50/50 split layout (left: instructions + editor, right: preview)
- Replace always-visible sidebar with slide-out drawer menu
- Move footer, progress, and settings into sidebar
- Add toggleable expected result overlay (hidden by default)
- Create new hint system with step progress indicators
- Add ghost button styles for modal and text button for sidebar reset
- Fix HTML lesson task instruction and typo ("important" not "importing")
- Add padding to preview frames to prevent corner clipping
- Optimize layout for iPadOS and tablet devices
- 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
