Fix Dawn Mobile Layout

My Shopify store is running on the free Dawn theme and the desktop experience is fine, but the mobile view of the landing page has gone out of shape. The hero image banner and its call-to-action button refuse to align the way they should. I need someone who knows their way around Shopify Liquid, Dawn’s section schema, and mobile-first CSS to put these pieces back where they belong.

Here’s what I’m expecting:
• Hero banner scales proportionally on phones and tablets, with the button centered and fully tappable.
• Products not sorting in ascending order
• All fixes done through Dawn’s theme editor or custom CSS/Liquid snippets—no third-party apps, so the theme stays lightweight and update-safe.
• After you’re done, I’ll test on iOS Safari, Chrome Android, and a desktop browser in responsive mode; everything should hold together across breakpoints.

Access to the store will be provided in a collaborator invite. Let me know your turnaround time and any previous Dawn or responsive repair work you can point me to.