/**
 * Lazy Loading Styles
 * Provides smooth transitions and placeholders for lazy-loaded content
 */

/* Base lazy loading styles */
[data-lazy-src],
[data-lazy-bg] {
    transition: opacity 0.3s ease-in-out;
}

/* Placeholder for images before loading */
img[data-lazy-src] {
    background: #f0f0f0;
    min-height: 100px;
}

/* Blur effect while loading (optional) */
img[data-lazy-src]:not(.lazy-loaded) {
    filter: blur(5px);
    opacity: 0.6;
}

/* Loaded state */
img.lazy-loaded,
[data-lazy-bg].lazy-loaded {
    opacity: 1;
    filter: none;
}

/* Fade in animation */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.lazy-loaded {
    animation: fadeIn 0.3s ease-in-out;
}

/* Skeleton loader for images (optional) */
img[data-lazy-src]:not(.lazy-loaded)::before {
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Prevent layout shift */
img[data-lazy-src] {
    display: block;
    width: 100%;
    height: auto;
}