/**
 * FPD Design Lazy Loader Styles
 * 
 * Styles for the lazy loading functionality
 */

/* Loading indicator */
.fpd-lazy-loader {
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    gap: 10px;
    color: var(--fpd-primary-color, #333);
    font-size: 14px;
    animation: fadeIn 0.3s ease-in-out;
}

.fpd-lazy-loader-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-top-color: var(--fpd-secondary-color, #27ae60);
    border-radius: 50%;
    animation: spinner 0.8s linear infinite;
}

@keyframes spinner {
    to { transform: rotate(360deg); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Design item animations */
.fpd-design-item {
    animation: slideUpFade 0.4s ease-out;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

@keyframes slideUpFade {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* All designs loaded message */
.fpd-all-designs-loaded {
    text-align: center;
    padding: 20px;
    color: #666;
    font-style: italic;
    font-size: 13px;
    animation: fadeIn 0.5s ease-in-out;
}

/* Sentinel element (invisible) */
.fpd-lazy-loader-sentinel {
    position: relative;
    pointer-events: none;
}

/* Container adjustments */
.fpd-scroll-area,
.fpd-designs-grid,
.fpd-category-designs-grid {
    position: relative;
}

/* Smooth scroll behavior */
.fpd-module-designs .fpd-scroll-area {
    scroll-behavior: smooth;
}

/* Performance optimizations */
.fpd-design-item img {
    will-change: transform;
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .fpd-lazy-loader {
        padding: 15px;
        font-size: 12px;
    }
    
    .fpd-lazy-loader-spinner {
        width: 16px;
        height: 16px;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .fpd-lazy-loader {
        color: #ddd;
    }
    
    .fpd-lazy-loader-spinner {
        border-color: rgba(255, 255, 255, 0.1);
        border-top-color: var(--fpd-secondary-color, #27ae60);
    }
    
    .fpd-all-designs-loaded {
        color: #999;
    }
}

/* Prevent layout shift */
.fpd-designs-grid {
    min-height: 200px;
}

/* Loading state for container */
.fpd-designs-loading {
    opacity: 0.7;
    pointer-events: none;
}