During December 2024, Yurii Pasternak developed a robust header system for the DBodies/project-Group-03 repository, focusing on enhancing user interface quality across large screens. Yurii implemented a new header component with responsive layout and navigation styling, ensuring consistent appearance and usability throughout the application. The work involved using HTML and CSS to create a menu icon sprite and refine header partial styling, addressing both visual and functional requirements. Yurii also resolved a minor HTML syntax issue to maintain valid markup. This feature-driven contribution demonstrated attention to responsive design principles and code maintainability, with all changes tracked through clear, traceable commits.