#product-loading {
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: #f8f9fa;
    border-radius: 8px;
    margin-bottom: 20px;
}

/* Spinner principal */
.spinner-border {
    --bs-spinner-width: 3rem;
    --bs-spinner-height: 3rem;
    --bs-spinner-border-width: 0.25em;
}

.spinner-border.text-primary {
    color: #0d6efd;
}

/* Spinner de crecimiento rápido */
.spinner-grow-fast {
    width: 3rem;
    height: 3rem;
    animation: spinner-grow-fast 0.75s linear infinite;
}

@keyframes spinner-grow-fast {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        opacity: 1;
        transform: scale(1);
    }
    100% {
        transform: scale(0);
        opacity: 0;
    }
}

/* Animación de puntos de carga */
.loading-dots:after {
    content: '';
    animation: loading-dots 1.5s infinite;
}

@keyframes loading-dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

/* Texto de carga */
#product-loading p {
    font-size: 1.1rem;
    font-weight: 500;
    margin-top: 1rem;
}