.error {
    border: 1px solid #dc3545 !important;
}

.error-message {
    color: #dc3545;
    font-size: 12px;
    margin-top: 5px;
}

/* Additional styling for shipping details */
.shipping-details {
    margin-bottom: 30px;
}

/* Make checkout button more prominent */
.checkout-button {
    font-size: 18px !important;
    padding: 15px 30px !important;
    border-radius: 30px !important;
    margin-top: 20px;
}

/* Improve spacing between sections */
.coupon-section {
    margin-top: 20px;
    margin-bottom: 20px;
}

/* Responsive improvements */
@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
    }
    
    .form-row .form-group {
        width: 100%;
        margin-right: 0;
    }
    
    .checkout-button {
        width: 100%;
    }
}