/* ==================== SKELETON SCREENS ==================== */

/* Shimmer Animation */
@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* Product Skeleton */
.product-skeleton {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.skeleton-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

.skeleton-content {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.skeleton-line {
    height: 16px;
    border-radius: 8px;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

.skeleton-title {
    width: 80%;
    height: 18px;
}

.skeleton-price {
    width: 60%;
    height: 20px;
}

.skeleton-button {
    width: 100%;
    height: 40px;
    border-radius: 8px;
    margin-top: 8px;
}

/* Campaign Skeleton */
.campaign-skeleton {
    width: 100%;
    height: 400px;
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

.skeleton-shimmer {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.3) 50%,
        rgba(255, 255, 255, 0) 100%);
    animation: shimmer 1.5s infinite;
}

/* Category Skeleton */
.category-skeleton {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background: white;
    border-radius: 12px;
    transition: transform 0.2s ease;
}

.skeleton-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

/* Flash Sale Skeleton Container */
.flash-sale-skeleton-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    width: 100%;
}

@media (max-width: 1200px) {
    .flash-sale-skeleton-container {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .flash-sale-skeleton-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .flash-sale-skeleton-container {
        grid-template-columns: 1fr;
    }
}

/* Skeleton Container */
.product-skeleton-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 24px;
    width: 100%;
}

/* Responsive Skeleton */
@media (max-width: 768px) {
    .product-skeleton-container {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 16px;
    }
    
    .skeleton-image {
        height: 160px;
    }
    
    .campaign-skeleton {
        height: 280px;
    }
}