.checkout-btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.5rem}.checkout-btn--loading{opacity:.8;cursor:not-allowed}.checkout-btn__spinner{display:inline-block;width:1rem;height:1rem;border-radius:50%;border:2px solid rgba(255,255,255,.3);border-top-color:currentcolor;animation:spin 1s ease-in-out infinite}@keyframes spin{to{transform:rotate(1turn)}}