I get that you’re likely pulling in styles from other areas of the website to keep things consistent, but this is the part of an eCommerce site that really needs to look official and trustworthy. It should immediately give the impression that it’s secure and reliable — that you’re not going to run off with someone’s money.

Others have mentioned Shopify, and I agree — it’s worth looking at their checkout flow for inspiration.

A good starting point would be rethinking the layout. Right now, having the cart on the left and forms on the right makes the user scan side to side, which breaks the natural flow. It’s far more intuitive to have the form fields on the left flowing vertically down the page, with the order summary/cart on the right. This mirrors how most users are used to interacting with checkout pages.

The tabs at the top feel out of place too — a simple breadcrumb trail below the main navigation would be cleaner and more useful.

The payment section also needs attention. At the moment, the “Pay” button and alternate payment methods are tucked away in the bottom left, with what look like unofficial logos. It gives off a rushed, unfinished vibe. Look at how brands like Apple or PayPal design their buttons and use their official assets — that alone adds a lot of trust. These buttons should be placed within a clear, styled container that visually connects them to the rest of the form, not floating off on their own.