Worked on refining the User Authentication flow in the Automattic/wp-calypso repository, focusing on enhancing the visual consistency and stability of the login interface. Addressed layout jitter by aligning the bot-check challenge with the login form’s width and ensuring the container filled the available column space across different viewports. Introduced conditional vertical spacing so that margins appeared only when the bot-check content was rendered, eliminating unnecessary gaps during inactive states. Collaborated with other contributors to support design system standards. Utilized React, JavaScript, and SCSS to implement these UI improvements, resulting in a more cohesive and reliable authentication experience.