Rewrite task text in Colors (4 lessons) and Box Model (8 lessons x 6
locales) to describe visual outcomes instead of giving copy-paste CSS
answers. Colors validations changed from property_value to regex
accepting multiple valid named colors per lesson.
Replace copy-pasteable CSS declarations in all 6 flexbox lesson tasks with
outcome-oriented descriptions. Update validation error messages to hint at
properties without revealing exact declarations. Add regex validation for
flexbox-6 to accept both flex: 1 and flex-grow: 1.
- 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 section-specific CodeMirror syntax highlighting (purple selectors for CSS)
- Logo now uses section colors (CSS purple as default, changes per section)
- Add section color coding for hints
- Add full footer to section and reference pages
- Fix nav highlight updates for sidebar and prev/next navigation
- Change welcome module mode to CSS for purple theme on first lesson
- Rebrand "Code Crispies" to "CODE CRISPIES" across all translations
- Fix scroll to top on section page navigation
- Change HTML section color to raspberry (#c75b7a)
- Add extended landing footer with module links grouped by section
- Integrate Liberapay donation widget with Umami tracking
- Add support section to help dialog and goodbye lesson
- Change license from MIT to Unlicense (public domain)
- Disable Tailwind section (not yet activated)
- Update German CTA copy
- Update all 6 language translations for license text
🤖 Generated with [Claude Code](https://claude.com/claude-code)
- Add dice SVG icon for random template button
- Reset button now restores last loaded template in playground
- Clear editor history when switching lessons (prevents cross-lesson undo)
- Add playground link to goodbye lesson
- Center icon buttons with flexbox
🤖 Generated with [Claude Code](https://claude.com/claude-code)
- Reduce welcome module from 3 lessons to 1 concise intro
- Reduce goodbye module from 3 lessons to 1 concise outro
- Create standalone playground module at end of module list
- Update all translated welcome files (de, pl, es, ar, uk)
- Playground now appears after goodbye, less prominent
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Synchronizes 72 lesson files across 5 languages (de, pl, es, ar, uk) to match
the English source. This ensures code, solutions, and validations are identical
while only title, description, task, and message fields are translated.
Changes include:
- Box model lessons (01-box-model.json)
- Units and variables (05-units-variables.json)
- Transitions and animations (06-transitions-animations.json)
- Responsive design (08-responsive.json)
- HTML elements (20-html-elements.json)
- HTML forms basic and validation (21, 22)
- HTML details/summary, progress/meter (23, 24)
- HTML datalist, dialog, fieldset (25, 27, 28)
- HTML tables and SVG (30, 32)
- HTML marquee (31)
- Welcome module (00-welcome.json)
Fixes validation inconsistencies and removes extra content that exceeded
English source. German translations were largely correct; Polish, Spanish,
Arabic, and Ukrainian required full translations.
- Updated de, pl, es, ar, uk flexbox lessons to use identical structure
- All 6 lessons now match English: previewHTML, validations, solutions
- Only title, description, task, and message fields are translated
- Real-world examples: nav menus, headers, cards, toolbars
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Task text now says "Add property: value" instead of "Set property on selector"
since the selector is already shown in the editor via codePrefix.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
- Updated de, pl, es, ar, uk translations to have identical structure
- All 10 lessons now match English: code, solutions, validations
- Only title, description, task, and message fields are translated
- Removed obsolete lessons not present in English version
🤖 Generated with [Claude Code](https://claude.com/claude-code)
CSS Basics:
- Rewrite lessons 3-10 with real UI components (coffee shop, dashboard, buttons)
- Remove artificial examples with dashed borders
- Students write full selectors when learning selector syntax
- Use codePrefix only when focus is on property concepts
Typography:
- Replace Georgia font with universal monospace for code examples
- Use system-ui throughout for consistent rendering
- Replace text-shadow with text-transform and letter-spacing
- Add rich descriptions explaining the "why" behind each property
- Add CSS Colors, Typography, Advanced Selectors, and Grid modules
- Remove deprecated HTML Marquee module from all languages
- Remove redundant div & span lesson from HTML Block & Inline
- Move SVG module from HTML to CSS section
- Enhance first lessons with comprehensive explanations:
- Flexbox: historical context, axes concept
- Colors: named colors, background-color explained
- Grid: comparison to Flexbox, key properties
- Swap header logo highlight (CRISPIES instead of CODE)
- Use English fallbacks for new modules in non-EN languages
- Fix test to include 'playground' mode
New path: 19 modules (~78 lessons) vs previous 16 modules (62 lessons)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
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.
- 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
- 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
- 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
- Shorten German module titles with consistent HTML/CSS prefixes
- Add .completion-badge styling for the lesson title completion badge
- Make sidebar lessons section fill available height on desktop
- Improve flexbox lesson descriptions with more context
- 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)
