.woocommerce.loading {
    position: relative;
    min-height: 600px;
}
.woocommerce.loading::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 30px;
    height: 30px;
    margin: -15px 0 0 -15px;
    border: 3px solid rgba(0,0,0,0.1);
    border-radius: 50%;
    border-top-color: #333;
    animation: spin 0.8s linear infinite;
    z-index: 1000;
}
.woocommerce.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.7);
    z-index: 999;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}
.error-message {
    color: #dc3232;
    padding: 15px;
    text-align: center;
    border: 1px solid #dc3232;
    background: rgba(220,50,50,0.1);
}