/* Lazy Loading Styles */
.lazy {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease-out;
}

.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Loading placeholder animation */
.img-placeholder {
    background: var(--panel2);
    position: relative;
    overflow: hidden;
}

.img-placeholder::before {
    content: '';
    display: block;
    position: absolute;
    left: -200px;
    top: 0;
    height: 100%;
    width: 200px;
    background: linear-gradient(
        to right,
        transparent 0%,
        var(--panel) 50%,
        transparent 100%
    );
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-200px);
    }
    100% {
        transform: translateX(calc(100% + 200px));
    }
}

/* Fallback for browsers that don't support IntersectionObserver */
.no-js img.lazy {
    display: none;
}

/* Progressive loading effect */
.lazy.loaded {
    filter: blur(0);
    transition: filter 0.3s ease-out;
}

.lazy:not(.loaded) {
    filter: blur(10px);
}