Shopify Store Responsive Audit and Cleanup

Hi,

I'm preparing to launch a Shopify store built on the Shrine Pro theme and I'm looking for an experienced Shopify front-end developer to perform a final responsive audit and cleanup.

The site is largely complete, but there are a handful of issues that I'd like reviewed and resolved before launch. These include:

• Hero/banner image displaying differently across devices and screen sizes
• Image cropping and spacing inconsistencies
• Mobile responsiveness and layout adjustments
• Header, menu and cart positioning over hero artwork
• General CSS/theme cleanup
• Cross-device and browser testing
• Overall QA to ensure the site is ready for launch

I'm not looking for a redesign, just someone with strong Shopify and CSS experience who can identify and fix any issues and make sure the site performs consistently across desktop, tablet and mobile.

Please let me know your experience with Shopify theme customisation and an estimate of time/cost for a pre-launch audit and implementation.

Thanks,
Mario @ Calcio Nino