.responsive-image {
    display: block;
    position: relative;
    overflow: hidden;
    background-color: #f1f2f3;
}

.has-image-skeleton .responsive-image.is-loading::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(100deg, #f1f2f3 25%, #e5e7e9 45%, #f1f2f3 65%);
    background-size: 220% 100%;
    animation: image-skeleton-shimmer 1.3s ease-in-out infinite;
}

.responsive-image__img {
    position: relative;
    z-index: 2;
    display: block;
    width: 100%;
    height: auto;
    opacity: 1;
}

.has-image-skeleton .responsive-image.is-loading .responsive-image__img {
    opacity: 0;
    transition: opacity 160ms ease;
}

.has-image-skeleton .responsive-image.is-loaded::before {
    content: none;
}

.has-image-skeleton .responsive-image.is-loaded .responsive-image__img {
    opacity: 1;
    transition: opacity 160ms ease;
}

@keyframes image-skeleton-shimmer {
    from { background-position: 100% 0; }
    to { background-position: -120% 0; }
}

@media (prefers-reduced-motion: reduce) {
    .has-image-skeleton .responsive-image.is-loading::before {
        animation: none;
    }

    .has-image-skeleton .responsive-image__img {
        transition: none;
    }
}