Fix CSS and Design Issues on WordPress - Launch Site

We are seeking a very experienced Wordpress developer to fix CSS and responsiveness issues in a new site design. Site was created from FIGMA files as redesign of existing site but there are issues with the CSS and other elements of the front design. This is NOT just UI - we need someone to make the visual adjustments expediently as well as finish site to completion which involves importing content from live site, finalising payment gateway integration and some banner and pop up integration and ensuring site is running very fast and efficiently. There is also some custom coding that has been done and may need adjusting / finishing so experience with ACF essential. WE need someone with EXCELLENT communication skills who is prepared to communicate daily on progress to ensure things are on track. We prefer someone who can be available during Australian working hours as would like to work with freelancer on an ongoing basis to manage site and do updates as required. Unless you believe you are an EXPERT in Wordpress Development / CSS and ACF please DO NOT respond to this task. WE need someone who knows exactly what they are doing and can work efficiently. Not experiment with your skills on our project. Our ideal candidate is highly experienced Wordpress developer who has also been using Claude and other AI programs to work efficiently and clean up redundant code and issues. You must also be available to START IMMEDIATELY on this project and be focused only on this project to ensure the job is finished expediently with no delays. If you already have multiple projects on the go DO NOT respond to this task.