Cart (Cart Preview, at /cart) is for reviewing/editing what you're buying — quantities, meal selections, module minimums. Delivery/Confirm (/cart_confirm) is one combined, multi-step page for how you receive it and how you pay — pickup/delivery method and address, tips, coupon codes, agreeing to Terms & Conditions, and payment method. You can always go Back to Order Review from Confirm if you need to change items again.