## 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.

vendor/nette/utils/src/Utils/Helpers.php

@@ -0,0 +1,109 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Utils;
+
+use Nette;
+use function array_unique, ini_get, levenshtein, max, min, ob_end_clean, ob_get_clean, ob_start, preg_replace, strlen;
+use const PHP_OS_FAMILY;
+
+
+class Helpers
+{
+	public const IsWindows = PHP_OS_FAMILY === 'Windows';
+
+
+	/**
+	 * Executes a callback and returns the captured output as a string.
+	 */
+	public static function capture(callable $func): string
+	{
+		ob_start(fn() => '');
+		try {
+			$func();
+			return ob_get_clean();
+		} catch (\Throwable $e) {
+			ob_end_clean();
+			throw $e;
+		}
+	}
+
+
+	/**
+	 * Returns the last occurred PHP error or an empty string if no error occurred. Unlike error_get_last(),
+	 * it is nit affected by the PHP directive html_errors and always returns text, not HTML.
+	 */
+	public static function getLastError(): string
+	{
+		$message = error_get_last()['message'] ?? '';
+		$message = ini_get('html_errors') ? Html::htmlToText($message) : $message;
+		$message = preg_replace('#^\w+\(.*?\): #', '', $message);
+		return $message;
+	}
+
+
+	/**
+	 * Converts false to null, does not change other values.
+	 */
+	public static function falseToNull(mixed $value): mixed
+	{
+		return $value === false ? null : $value;
+	}
+
+
+	/**
+	 * Returns value clamped to the inclusive range of min and max.
+	 */
+	public static function clamp(int|float $value, int|float $min, int|float $max): int|float
+	{
+		if ($min > $max) {
+			throw new Nette\InvalidArgumentException("Minimum ($min) is not less than maximum ($max).");
+		}
+
+		return min(max($value, $min), $max);
+	}
+
+
+	/**
+	 * Looks for a string from possibilities that is most similar to value, but not the same (for 8-bit encoding).
+	 * @param  string[]  $possibilities
+	 */
+	public static function getSuggestion(array $possibilities, string $value): ?string
+	{
+		$best = null;
+		$min = (strlen($value) / 4 + 1) * 10 + .1;
+		foreach (array_unique($possibilities) as $item) {
+			if ($item !== $value && ($len = levenshtein($item, $value, 10, 11, 10)) < $min) {
+				$min = $len;
+				$best = $item;
+			}
+		}
+
+		return $best;
+	}
+
+
+	/**
+	 * Compares two values in the same way that PHP does. Recognizes operators: >, >=, <, <=, =, ==, ===, !=, !==, <>
+	 */
+	public static function compare(mixed $left, string $operator, mixed $right): bool
+	{
+		return match ($operator) {
+			'>' => $left > $right,
+			'>=' => $left >= $right,
+			'<' => $left < $right,
+			'<=' => $left <= $right,
+			'=', '==' => $left == $right,
+			'===' => $left === $right,
+			'!=', '<>' => $left != $right,
+			'!==' => $left !== $right,
+			default => throw new Nette\InvalidArgumentException("Unknown operator '$operator'"),
+		};
+	}
+}