I'm creating an extraordinarily difficult challenge that combines multiple complex pattern types with subtle variations that would trip up naive pattern matching. This challenge includes:
1. Nested parentheses with balanced counts and specific content requirements
2. Currency amounts with various formats (symbols, commas, decimals) 
3. URLs with complex query parameters and fragments
4. JSON-like structures with specific key-value patterns
5. Markdown-style links with specific formats
6. Multi-l... (truncated)