Finish Squarespace Store, Pop-Up & CSS

My Squarespace site is already half-built on a standard template and has the core Home, Store, and Information pages in place. I now need a Squarespace specialist who can jump in and complete the last pieces so the site is ready to launch.

Here’s what I still need:

• Build an age-verification pop-up that appears before any page loads and keeps non-qualified visitors out.
• Write clean, well-commented custom CSS for:
– Changing image sizes in the Store grid
– A few additional layout design tweaks to keep everything responsive
• Create a wholesale landing page that is password-protected and also checks for a user name, then connect it properly in the navigation.
• Help me add or adjust copy and images across the existing pages.
• If time allows, design a handful of simple product visuals in Canva and upload them.

Everything must be done within my existing Squarespace account, using best practices so I can maintain the site later. When we’re finished I want a fully functional, polished site plus brief notes on where any code was added and how to update the pop-up and wholesale credentials.

Let me know your estimated timeline and share one or two Squarespace examples that show similar custom work. Thanks!