/* Contenedor de feedback */
.shipping_feedback {
    margin-top: 10px;
    padding: 10px;
    border-radius: 4px;
    display: block; /* Oculto inicialmente */
}

/* Estilos para los mensajes */
.shipping_feedback.processing {
    background-color: #fff8e1;
    border-left: 4px solid #ffc107;
    color: #ff8f00;
}

.shipping_feedback.success {
    background-color: #e8f5e9;
    border-left: 4px solid #4caf50;
    color: #2e7d32;
}

.shipping-feedback.error {
    background-color: #ffebee;
    border-left: 4px solid #f44336;
    color: #c62828;
}

/* Estilos para el botón */
.shipping_btn.processing {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Spinner de carga */
.shipping_btn .spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-right: 8px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
}

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