:root{--header-height:70px}.checkout-box{border:2px solid #ccc;border-radius:8px;padding:20px;background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.1);max-width:600px;width:100%;box-sizing:border-box}@media (max-width:480px){:root{--header-height:56px}.checkout-box{padding:15px;border-width:1px}}.checkout-page-wrapper{display:flex;flex-wrap:wrap;gap:2rem;padding:2rem 1rem;max-width:1400px;margin:0 auto;width:100%;box-sizing:border-box}.catalog-section{flex:2 1 500px;min-width:300px}.cart-section{flex:1 1 320px;min-width:280px}.embedded-checkout-section{flex:1 1 100%;margin-top:1rem}.error{color:#b00020;margin-bottom:.5rem;padding:1rem;background-color:#ffebee;border-radius:4px}@media (max-width:768px){.checkout-page-wrapper{flex-direction:column}.cart-section,.catalog-section{flex:1 1 100%;min-width:unset}}