@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.wc-checkout-flow-spinner {
    border: 8px solid #fff;
    border-left-color: transparent;
    border-radius: 50%;
    width: 64px;
    height: 64px;
    animation: spin 1.2s linear infinite;
}

.wc-checkout-flow-loader {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    z-index: -1;
    visibility: hidden;
    transition: opacity 0.4s linear;
}

.wc-checkout-flow-loader.show {
    opacity: 1;
    z-index: 999;
    visibility: visible;
}