Update task instructions from old format to match English source:
- Old: "Add <kbd>padding: 1rem</kbd> to <kbd>.box</kbd>"
- New: "Set <kbd>padding</kbd> to <kbd>1rem</kbd>"
Removes redundant class name references since codePrefix shows the selector.
Affected languages: ar, es, pl, uk
- Hello World lesson now styles plain text (no h1 required)
- Added syntax examples to CSS Variables, calc(), Media Queries, Flexbox, Grid
- Added goodbye/offboarding module with contribution encouragement
- Fixed validation in welcome lesson (Hello World instead of Hello)
- Replaced 'quoted text' with <code>quoted text</code> in all task descriptions
- Added syntax examples to Transitions and Keyframes lessons
- Updated all language versions (en, de, pl, es, ar, uk)
- Changed solution in 00-welcome.json from "Hallo Welt" to "Hello World"
- Added missing solution fields to 01-box-model.json (8 lessons)
- Added missing solution fields to 05-units-variables.json (4 lessons)
- Added missing solution fields to 06-transitions-animations.json (4 lessons)
- Added missing solution fields to 08-responsive.json (4 lessons)
- Fixed flexbox.json class names from .green/.red/.yellow to .box1/.box2/.box3
- Added missing solution fields to flexbox.json (6 lessons)
German translations now keep all CSS code in English for maintainability,
with only instructional text translated.
- Swap left/right panels in RTL mode
- Flip left panel border to left side
- Flip hint border to right side
- Flip lessons container indentation (margin, border, padding)
- Flip module expand icon and lesson checkmark margins
- Flip toggle switch slider margin
- Reverse setting row and preview controls
- Remove language button from header
- Add language select dropdown in sidebar settings
- Add translations for "Language" label in all languages
- Remove unused .lang-switch CSS
- Language switcher now shows current language code (EN, DE, PL, etc.)
- Add RTL layout support for Arabic (dir="rtl" on html element)
- Sidebar slides from right in RTL mode
- Flip horizontal layouts, navigation, and text alignment for RTL
- Create lesson directories and copy English lessons as templates
- Add full UI translations for pl, es, ar, uk languages
- Update lessons.js with module stores for all new languages
- Implement language cycling (en → de → pl → es → ar → uk → en)
- Fix playground mode detection (lesson.mode takes precedence)
- Rename welcome lessons to Get Started, Overview, Playground
- Remove separate playground module files
- Fix playground detection to check lesson.mode instead of module.id
- Remove ! from CRISPY, add spacing to smiley
- Use darker green for better contrast
- Increase font size to 1.3rem
- Remove GitHub link from sidebar (keep only Gitea)
- Hide Run button (live preview is stable)
- Update all references from librete.ch to LibreTECH
- Add context to repo links (Gitea Source, GitHub Mirror)
- Fix welcome lesson redundant text
- Slow down CRISPY animation to 8s
- Remove editor-tools margin-right
- Add Welcome module with intro lessons (EN/DE)
- Success message now bounces like DVD screensaver (10s duration)
- Mobile: nav bar at top, preview before editor
- Logo: CODE with purple background pill
- Remove unnecessary async/await from loadModules (static imports)
- Move game controls to top of right panel
- Move preview header below controls, above preview
- Flip inset shadow to top of preview section
If no lesson loads within 3 seconds, show a centered, gray notice
with fade-in animation suggesting to select from menu or check help.
Includes link to help dialog.
- 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
Store lesson title, description, and task in localStorage after each
lesson load. On page reload, immediately restore the cached content
to avoid showing "Loading..." placeholder text.
