Worked on the AxaFrance/design-system repository to enhance UI consistency and readability across modules, focusing on front end development using CSS. Addressed design system cohesion by removing redundant modal-client divider and border tokens, aligning icon and form control visuals, and unifying client and prospect message styles for improved cross-device readability. Implemented practical UI refinements such as increasing radio button checked width to boost usability and accessibility. The work included cross-feature CSS cleanup and token consolidation within modal-related components, resulting in a more maintainable and accessible codebase. All changes were delivered within a one-month period, emphasizing maintainable and accessible design practices.