Worked on enhancing the CiviCRM Drupal admin user experience by implementing a menu toggle improvement in the civicrm-core repository. Focused on reducing visual clutter and addressing alignment issues when the menu appears above content, the solution involved refining JavaScript logic and streamlining CSS to remove unused styles. The update introduced adaptive behavior for environments lacking a toolbar button, ensuring the toggle remains accessible and navigation space is preserved. All changes were clearly documented and designed to minimize code churn, laying groundwork for future UI cleanups. The work demonstrated proficiency in front end development, particularly with JavaScript and CSS technologies.