/**
 * Estilos para Sistema de Lazy Loading
 * LaraClassificados - Otimização de Performance
 */

/* Imagens com lazy loading */
img[data-lazy] {
    background-color: #f8f9fa;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Crect width='100' height='100' fill='%23f8f9fa'/%3E%3Cpath d='M30 30h40v40H30z' fill='%23dee2e6'/%3E%3Cpath d='M35 40l5 5 10-10 15 15v10H35z' fill='%23adb5bd'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 60px 60px;
    min-height: 200px;
    transition: opacity 0.3s ease-in-out;
}

/* Estado de carregamento */
img.lazy-loading {
    opacity: 0.7;
    filter: blur(2px);
    transition: all 0.3s ease-in-out;
}

/* Estado carregado */
img.lazy-loaded {
    opacity: 1;
    filter: none;
    background-image: none;
    transition: all 0.3s ease-in-out;
}

/* Estado de erro */
img.lazy-error {
    background-color: #f8d7da;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Crect width='100' height='100' fill='%23f8d7da'/%3E%3Cpath d='M30 30h40v40H30z' fill='%23f5c6cb'/%3E%3Cpath d='M45 35h10v20H45z' fill='%23721c24'/%3E%3Cpath d='M45 60h10v10H45z' fill='%23721c24'/%3E%3C/svg%3E");
    opacity: 0.8;
}

/* Componentes com lazy loading */
[data-lazy-component] {
    min-height: 100px;
    background-color: #f8f9fa;
    border: 1px dashed #dee2e6;
    border-radius: 0.375rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* Placeholder para componentes */
[data-lazy-component]:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transform: translateX(-100%);
    animation: shimmer 1.5s infinite;
}

[data-lazy-component].lazy-loading:before {
    animation: shimmer 1.5s infinite;
}

[data-lazy-component].lazy-loaded:before {
    display: none;
}

/* Animação de shimmer */
@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* Estado de carregamento para componentes */
[data-lazy-component].lazy-loading {
    background-color: #f8f9fa;
    border-style: solid;
    opacity: 0.8;
}

/* Estado carregado para componentes */
[data-lazy-component].lazy-loaded {
    background-color: transparent;
    border: none;
    opacity: 1;
    animation: fadeIn 0.3s ease-in-out;
}

/* Estado de erro para componentes */
[data-lazy-component].lazy-error {
    background-color: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

[data-lazy-component].lazy-error:after {
    content: '⚠️ Erro ao carregar componente';
    font-size: 0.875rem;
    text-align: center;
}

/* Animação de fade-in */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Otimizações específicas para cards de classificados */
.classified-card img[data-lazy] {
    min-height: 200px;
    object-fit: cover;
}

.classified-card img.lazy-loading {
    transform: scale(1.02);
}

.classified-card img.lazy-loaded {
    transform: scale(1);
}

/* Otimizações para thumbnails pequenos */
.thumbnail img[data-lazy] {
    min-height: 80px;
    background-size: 30px 30px;
}

/* Otimizações para imagens de banner */
.banner-image img[data-lazy] {
    min-height: 300px;
    background-size: 80px 80px;
}

/* Otimizações para mobile */
@media (max-width: 768px) {
    img[data-lazy] {
        min-height: 150px;
        background-size: 40px 40px;
    }
    
    [data-lazy-component] {
        min-height: 80px;
    }
    
    .banner-image img[data-lazy] {
        min-height: 200px;
        background-size: 60px 60px;
    }
}

/* Prevenção de layout shift */
.lazy-container {
    position: relative;
    overflow: hidden;
}

.lazy-container img {
    width: 100%;
    height: auto;
    display: block;
}

/* Skeleton loading para listas */
.skeleton-item {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: 0.375rem;
    margin-bottom: 1rem;
}

.skeleton-item.skeleton-card {
    height: 300px;
}

.skeleton-item.skeleton-list {
    height: 80px;
}

.skeleton-item.skeleton-banner {
    height: 200px;
}

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

/* Otimizações para impressão */
@media print {
    img[data-lazy] {
        background-image: none;
        min-height: auto;
    }
    
    [data-lazy-component] {
        border: none;
        background: none;
        min-height: auto;
    }
    
    [data-lazy-component]:before {
        display: none;
    }
}

/* Modo escuro */
@media (prefers-color-scheme: dark) {
    img[data-lazy] {
        background-color: #343a40;
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Crect width='100' height='100' fill='%23343a40'/%3E%3Cpath d='M30 30h40v40H30z' fill='%23495057'/%3E%3Cpath d='M35 40l5 5 10-10 15 15v10H35z' fill='%236c757d'/%3E%3C/svg%3E");
    }
    
    [data-lazy-component] {
        background-color: #343a40;
        border-color: #495057;
        color: #f8f9fa;
    }
    
    .skeleton-item {
        background: linear-gradient(90deg, #343a40 25%, #495057 50%, #343a40 75%);
    }
}

/* Redução de movimento para acessibilidade */
@media (prefers-reduced-motion: reduce) {
    img[data-lazy],
    [data-lazy-component],
    .skeleton-item {
        animation: none;
        transition: none;
    }
    
    [data-lazy-component]:before {
        animation: none;
    }
}