/* Modern Image Loading Optimizations */

/* Lazy loading styles */
.lazy-image {
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.lazy-image.loaded {
    opacity: 1;
}

/* Blur-up loading effect */
.image-container {
    position: relative;
    overflow: hidden;
}

.image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    filter: blur(10px);
    transform: scale(1.1);
    transition: opacity 0.3s ease-in-out;
    z-index: 1;
}

.image-container.loaded .image-placeholder {
    opacity: 0;
}

.image-container img {
    position: relative;
    z-index: 2;
}

/* Responsive images */
.responsive-image {
    width: 100%;
    height: auto;
    display: block;
}

/* Critical images that should load immediately */
.critical-image {
    /* No lazy loading for above-fold content */
}

/* Skeleton loading for image placeholders */
.image-skeleton {
    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;
    }
}

/* Video optimization */
.optimized-video {
    width: 100%;
    height: auto;
}

/* Smooth video loading transition */
video {
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

video.loaded,
video[autoplay] {
    opacity: 1;
}

.video-container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    overflow: hidden;
}

.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Preload hints for critical resources */
.preload-hint {
    /* Images that should be preloaded */
}

/* WebP support detection */
.webp .jpg-fallback {
    display: none;
}

.no-webp .webp-image {
    display: none;
}

/* Mobile-specific optimizations */
@media (max-width: 768px) {
    .desktop-only-image {
        display: none;
    }
    
    .mobile-optimized {
        /* Smaller images for mobile */
    }
}