## Major CodePress CMS Enhancement

### 🚀 New Features
- **League CommonMark Integration**: Replaced basic Markdown parser with full CommonMark 2.7 support
- **Bootstrap Sass Architecture**: Modern SCSS build system with Bootstrap 5.3.8
- **Enhanced Navigation**: Uses filenames instead of H1 titles for consistency
- **Improved Styling**: Transparent navigation backgrounds, no rounded corners

### 🎨 UI/UX Improvements
- Navigation items now use formatted filenames (e.g., "kennis-boven-aantallen" → "Kennis Boven Aantallen")
- Transparent navigation backgrounds with subtle hover effects
- Removed rounded corners from first-level navigation
- 50% opacity navigation background using Bootstrap variables

### 🔧 Technical Improvements
- **Class Organization**: Extracted CodePressCMS and SimpleTemplate to separate files
- **Full PHPDoc Documentation**: Complete documentation for all methods
- **Modern Build Process**: npm scripts for SCSS compilation
- **Enhanced Markdown Support**: Tables, strikethrough, task lists, autolinks
- **Security**: Proper HTML sanitization with CommonMark

### 📦 Dependencies
- Added `league/commonmark` for professional Markdown parsing
- Added `bootstrap` for SCSS-based styling
- Updated `sass` build process

### 🐛 Bug Fixes
- Fixed content directory path configuration
- Resolved navigation title inconsistencies
- Improved Markdown bold/italic formatting
- Fixed homepage 404 issues

### 🔄 Migration Notes
- Content directory moved from `content/` to `public/content/`
- Navigation now displays filenames instead of content H1 titles
- CSS now compiled from SCSS source files

The CMS now provides a professional, modern experience with robust Markdown support and clean, maintainable code architecture.

README.md

@@ -178,9 +178,57 @@ server {
 }
 ```
 
+## 🏗️ PHP Classes
+
+### SimpleTemplate Class
+
+Lightweight template rendering engine die Mustache-style syntax ondersteunt zonder externe dependencies.
+
+**Methods:**
+- `render($template, $data)` - Rendert template met data
+- `replacePartial($matches)` - Vervangt `{{>partial}}` placeholders
+
+**Features:**
+- `{{>partial}}` - Partial includes
+- `{{#variable}}...{{/variable}}` - Conditionele blocks
+- `{{^variable}}...{{/variable}}` - Negatieve conditionele blocks
+- `{{{variable}}}` - Unescaped HTML content
+- `{{variable}}` - Escaped content
+
+### CodePressCMS Class
+
+Hoofd CMS class die alle content management functionaliteit beheert.
+
+**Public Methods:**
+- `__construct($config)` - Initialiseer CMS met configuratie
+- `getPage()` - Haalt huidige pagina content op
+- `getMenu()` - Genereert navigatiestructuur
+- `render()` - Rendert volledige pagina met templates
+
+**Private Methods:**
+- `buildMenu()` - Bouwt menu structuur van content directory
+- `scanDirectory($dir, $prefix)` - Scant directory voor content
+- `performSearch($query)` - Voert zoekopdracht uit
+- `parseMarkdown($content)` - Converteert Markdown naar HTML
+- `parsePHP($filePath)` - Verwerkt PHP bestanden
+- `parseHTML($content)` - Verwerkt HTML bestanden
+- `getBreadcrumb()` - Genereert breadcrumb navigatie
+- `renderMenu($items, $level)` - Rendert menu HTML
+- `getContentType($page)` - Bepaalt content type
+- `autoLinkPageTitles($content)` - Auto-link pagina titels
+
+**Features:**
+- Multi-format content support (MD, PHP, HTML)
+- Dynamische navigatie met dropdowns
+- Zoekfunctionaliteit met snippets
+- Breadcrumb navigatie
+- Auto-linking tussen pagina's
+- File metadata tracking
+- Responsive template rendering
+
 ## 📖 Documentatie
 
-- **[Handleiding (NL)](guide/nl.md)** - Gedetaillede handleiding
+- **[Handleiding (NL)](guide/nl.md)** - Gedetailleerde handleiding
 - **[Handleiding (EN)](guide/en.md)** - English documentation
 - **[AGENTS.md](AGENTS.md)** - Ontwikkelaar instructies