Faced with the challenge of transforming a horizontal menu-based theme into a responsive vertical menu theme, we embarked on a comprehensive solution. This transformation entailed a complete overhaul, involving the modification of nearly 300 CSS and JavaScript files to align with the new vertical menu theme. To achieve this, we worked on separate template files, adjusted the graphical structure for both the main and production dashboards, fine-tuned the sidebar menu to reflect user permissions, and ensured responsive alignment across all interfaces.