I'll build this signup modal. Let me first check the existing codebase and generate the images for the slideshow.

All images are generated. Now let me update the layout with Inter font, update the globals.css, and build the modal components.

Now let me build the components. I'll create the slideshow, signup form, and modal components separately.

Now let me add the progress bar animation keyframe and create the page:

The signup modal is ready. It features a two-column layout — the left side has an auto-playing image slideshow with 5 AI-generated images that cross-fade every 3 seconds with a progress bar, style label pills, and a dark gradient overlay with compelling copy. The right side has a clean signup form with Google, Apple, Facebook, Microsoft, and Email options, plus legal microcopy and a sign-in link. The modal opens by default on page load, uses Inter font throughout, and is fully responsive (slideshow hides on mobile).