Smart Cart

The cart page is where shoppers stop shopping. This slide-out cart drawer replaces it, so they add, edit and check out without leaving the page. Build it from modules: shipping-goal bar, product upsells and cross-sells, gift-with-purchase, order notes, discount code field and trust badges. Reward tiers are backed by a real Shopify discount created at publish, so checkout charges what the bar promised. Rules decide who sees what. Installs as a theme app extension, with no theme edits.