/* Estilos para a seção de detalhes do produto */
.product-details-section {
    max-width: 420px;
    margin: 0 auto;
    padding: 24px 16px;
    box-sizing: border-box;
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 2px 16px 0 rgba(0,0,0,0.07);
    word-break: break-word;
    overflow: auto;
}

/* Estilos para a seção de descrição do produto */
.product-description-section {
    max-width: 100%;
    overflow-x: auto;
    padding-bottom: 8px;
}

/* === CARD DO KIT - LAYOUT PADRÃO IMUTÁVEL === */
/* ATENÇÃO: Este "Card do Kit" é OBRIGATÓRIO para todos os kits de todas as séries */
/* Consulte docs/DESIGN_SYSTEM.md antes de fazer qualquer alteração */
/* REGRA IMUTÁVEL - NÃO ALTERAR SEM APROVAÇÃO EXPLÍCITA */

/* Estilos para os novos cards de kit */
.new-kit-card {
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    padding: 0;
    margin: 16px 0;
    transition: all 0.3s ease;
    border: 1px solid #e5e7eb;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.new-kit-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    border-color: #3b82f6;
}

.new-kit-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: #f8fafc;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px 8px 0 0;
}

.new-kit-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.3s ease;
    border-radius: 8px 8px 0 0;
    /* Ajuste automático para diferentes tamanhos de imagem */
    max-width: 100%;
    max-height: 100%;
    min-width: 100%;
    min-height: 100%;
}

/* Ajustes responsivos para diferentes proporções de imagem */
.new-kit-image img[data-aspect="square"] {
    object-fit: cover;
    object-position: center;
}

.new-kit-image img[data-aspect="landscape"] {
    object-fit: cover;
    object-position: center;
}

.new-kit-image img[data-aspect="portrait"] {
    object-fit: cover;
    object-position: center top;
}

/* Fallback para imagens muito pequenas */
.new-kit-image img[width="1"], 
.new-kit-image img[height="1"],
.new-kit-image img[style*="width: 1px"],
.new-kit-image img[style*="height: 1px"] {
    object-fit: contain;
    background: #f1f5f9;
}

/* Ajuste para imagens SVG */
.new-kit-image img[src$=".svg"] {
    object-fit: contain;
    padding: 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

/* Ajuste para imagens com erro de carregamento */
.new-kit-image img[alt]:after {
    content: attr(alt);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #f1f5f9;
    padding: 20px;
    border-radius: 8px;
    color: #64748b;
    font-size: 14px;
    text-align: center;
    border: 2px dashed #cbd5e1;
}

.new-kit-card:hover .new-kit-image img {
    transform: scale(1.05);
}

.new-kit-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.new-kit-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.new-kit-title {
    font-size: 18px;
    font-weight: 700;
    color: #1f2937;
    margin: 0 0 12px 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.new-kit-description {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.6;
    margin: 0 0 20px 0;
    flex: 1;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.new-kit-footer {
    display: flex;
    flex-direction: column;
    margin-top: auto;
    gap: 12px;
}

.new-kit-price {
    display: flex;
    align-items: baseline;
    gap: 8px;
    justify-content: flex-start;
}

.price-label {
    font-size: 12px;
    color: #9ca3af;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.price-value {
    font-size: 20px;
    font-weight: 800;
    color: #059669;
    line-height: 1;
    white-space: nowrap;
}

.new-add-to-cart-btn {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 10px 16px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
    width: 100%;
    justify-content: center;
}

.new-add-to-cart-btn:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.new-add-to-cart-btn:active {
    transform: translateY(0);
}

.cart-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.btn-text {
    white-space: nowrap;
}

/* Responsividade para cards */
@media (max-width: 768px) {
    .new-kit-card {
        margin: 12px 0;
    }
    
    .new-kit-image {
        height: 160px;
    }
    
    .new-kit-content {
        padding: 16px;
    }
    
    .new-kit-title {
        font-size: 16px;
    }
    
    .new-kit-description {
        font-size: 13px;
    }
    
    .new-kit-footer {
        gap: 10px;
    }
    
    .new-kit-price {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
    
    .new-add-to-cart-btn {
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .price-value {
        font-size: 18px;
    }
}

/* Estilos para o card de kit moderno (mantido para compatibilidade) */
.modern-kit-card {
    background: var(--white);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-6);
    margin: var(--spacing-4) 0;
    transition: var(--transition-normal);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    position: relative;
}

.modern-kit-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.modern-kit-image {
    width: 100%;
    height: 200px;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-4);
    background: var(--gray-100);
    position: relative;
}

.modern-kit-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: var(--transition-normal);
}

.modern-kit-image:hover img {
    transform: scale(1.05);
}

.modern-kit-image .image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
    color: var(--gray-500);
    font-size: var(--font-size-sm);
    text-align: center;
}

.modern-kit-category {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-3);
}

.modern-kit-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-2);
    line-height: 1.3;
}

.modern-kit-description {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    margin-bottom: var(--spacing-4);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    /* line-clamp: 3; - Removido: propriedade não suportada em navegadores mais antigos */
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.modern-kit-price {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-4);
}

.modern-kit-price .currency {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.modern-add-to-cart {
    width: 100%;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: var(--spacing-4) var(--spacing-6);
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
}

.modern-add-to-cart:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.modern-add-to-cart:active {
    transform: translateY(0);
}

.modern-add-to-cart:disabled {
    background: var(--gray-400);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.modern-add-to-cart .cart-icon {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* Responsividade para o card moderno */
@media (max-width: 768px) {
    .modern-kit-card {
        padding: var(--spacing-4);
        margin: var(--spacing-3) 0;
    }
    
    .modern-kit-image {
        height: 160px;
    }
    
    .modern-kit-title {
        font-size: var(--font-size-lg);
    }
    
    .modern-kit-price {
        font-size: var(--font-size-xl);
    }
}
.kit-card-compact {
    padding: var(--spacing-3) var(--spacing-4);
    min-height: 120px;
    max-width: 400px;
    width: 100%;
    margin: var(--spacing-3) auto;
    box-sizing: border-box;
}

/* Card Layout Principal */
.kit-card-flex {
    display: flex;
    flex-direction: row;
    align-items: stretch;
    gap: var(--spacing-2);
    height: 100%;
}

/* 1. Espaço para Foto com Auto-Ajuste Perfeito */
.kit-image-compact {
    width: 80px;
    height: 80px;
    min-width: 80px;
    min-height: 80px;
    border-radius: var(--border-radius-lg);
    background: var(--gray-100);
    overflow: hidden;
    position: relative;
    box-shadow: 0 2px 8px 0 rgba(0,0,0,0.1);
    flex-shrink: 0;
}

.kit-image-compact img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    border-radius: var(--border-radius-lg);
    transition: transform 0.3s ease;
}

.kit-image-compact:hover img {
    transform: scale(1.05);
}

/* 2. Layout das Informações do Kit */
.kit-info-compact {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
    padding: var(--spacing-1) 0;
    justify-content: space-between;
}

.kit-header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--spacing-1);
    gap: var(--spacing-1);
}

.kit-description-compact {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin-bottom: 0;
    -webkit-line-clamp: 2;
    /* line-clamp: 2; - Removido: propriedade não suportada em navegadores mais antigos */
    -webkit-box-orient: vertical;
    display: -webkit-box;
    overflow: hidden;
}
/**
 * CSS Grid de Livros - BookStore E-commerce
 * Estilos profissionais para o catálogo de produtos
 * 
 * @author Arquiteto de Software
 * @version 2.0
 */

/* Grid Profissional de Livros */
.kits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: var(--spacing-10);
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 1rem;
}

/* Card Profissional do Livro */
.kit-card {
    background: var(--white);
    border-radius: var(--border-radius-xl);
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    border: 1px solid var(--gray-100);
    overflow: hidden;
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
    height: 100%;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    width: 100%;
}

.kit-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    border-color: var(--gray-200);
}

/* Imagem Profissional do Livro */
.kit-image {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: var(--gray-50);
}

.kit-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform var(--transition-slow);
    max-width: 100%;
    max-height: 100%;
}

.kit-card:hover .kit-image img {
    transform: scale(1.03);
}

/* Placeholder Elegante para Imagem */
.kit-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    color: var(--gray-400);
    font-size: var(--font-size-3xl);
}

/* Badges Minimalistas Corporativos */
.kit-badge {
    position: absolute;
    top: var(--spacing-3);
    right: var(--spacing-3);
    /* Fallback para navegadores que não suportam backdrop-filter */
    background: rgba(59, 130, 246, 0.9);
    color: var(--white);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--border-radius-xl);
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.75px;
    z-index: 10;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.12), 0 1px 2px 0 rgba(0, 0, 0, 0.24);
    /* Suporte para backdrop-filter com fallback para compatibilidade */
    -webkit-backdrop-filter: blur(8px);
    /* backdrop-filter: blur(8px); - Removido: propriedade não suportada em navegadores mais antigos */
    background: rgba(255, 255, 255, 0.9); /* Fallback para navegadores sem suporte */
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.kit-badge.destaque {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.kit-badge.promocao {
    background: linear-gradient(135deg, var(--success-color), #15803d);
}

.kit-badge.novo {
    background: linear-gradient(135deg, var(--info-color), #0284c7);
}

.kit-badge.limitado {
    background: linear-gradient(135deg, var(--warning-color), #c2410c);
}

/* Conteúdo Profissional do Card */
.kit-content {
    padding: var(--spacing-6);
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Título do Kit */
.kit-title {
    font-family: var(--font-family-heading);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-900);
    margin: 0 0 var(--spacing-1) 0;
    line-height: 1.2;
    letter-spacing: -0.025em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    /* line-clamp: 2; - Removido: propriedade não suportada em navegadores mais antigos */
    overflow-wrap: break-word;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Descrição do Kit */
.kit-description {
    color: var(--gray-600);
    font-size: 0.65rem;
    line-height: 1.3;
    margin-bottom: var(--spacing-1);
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    /* line-clamp: 2; - Removido: propriedade não suportada em navegadores mais antigos */
    overflow-wrap: break-word;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.kit-description-compact {
    font-size: 0.6rem;
    color: var(--gray-600);
    line-height: 1.2;
    margin-bottom: 0;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    /* line-clamp: 2; - Removido: propriedade não suportada em navegadores mais antigos */
    -webkit-box-orient: vertical;
    overflow: hidden;
    overflow-wrap: break-word;
}

/* Informações do Kit */
.kit-info {
    margin-bottom: var(--spacing-4);
}

.kit-stock {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-2);
}

.stock-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success-color);
}

.stock-indicator.low {
    background: var(--warning-color);
}

.stock-indicator.out {
    background: var(--error-color);
}

.stock-text {
    color: var(--gray-600);
    font-weight: 500;
}

.stock-text.low {
    color: var(--warning-color);
}

.stock-text.out {
    color: var(--error-color);
}

/* Preço Profissional */
/* 3. Preço Destacado */
.kit-price {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary-600);
    background: var(--primary-50);
    padding: 2px 6px;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--primary-200);
    white-space: nowrap;
    align-self: flex-start;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-5);
}

.price-current {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.025em;
}

.price-original {
    font-size: var(--font-size-base);
    color: var(--gray-500);
    text-decoration: line-through;
    margin-left: var(--spacing-2);
    font-weight: 400;
}

.price-discount {
    background: var(--success-color);
    color: var(--white);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.1);
}

/* Ações Profissionais do Card */
.kit-actions {
    display: flex;
    margin-top: auto;
    width: 100%;
}

/* Estilos de botões removidos - Ver detalhes não é mais necessário */

/* Botão Adicionar ao Carrinho */
/* 4. Botão do Carrinho Otimizado */
.btn-add-cart {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px 8px;
    font-size: 0.65rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    gap: 4px;
    min-width: 100px;
    height: 28px;
    width: 100%;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.1);
    margin-top: auto;
    position: relative;
    overflow: hidden;
}

.btn-add-cart:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-800) 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px 0 rgba(0, 0, 0, 0.2);
}

.btn-add-cart:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.1);
}

.btn-add-cart:disabled {
    background: var(--gray-400);
    cursor: not-allowed;
    transform: none;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    opacity: 0.6;
}

.btn-add-cart svg {
    width: 12px;
    height: 12px;
    stroke-width: 2;
    flex-shrink: 0;
}

.btn {
    padding: var(--spacing-3) var(--spacing-5);
    border: none;
    border-radius: var(--border-radius-md);
    font-family: var(--font-family-base);
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 0.025em;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-color);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.btn-add-cart:disabled {
    background: var(--gray-300);
    border-color: var(--gray-300);
    color: var(--gray-500);
    cursor: not-allowed;
    transform: none;
    opacity: 0.6;
}

.btn-add-cart .cart-icon {
    width: 18px;
    height: 18px;
    stroke-width: 1.75;
    filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.1));
    transition: all var(--transition-fast);
}

.btn-add-cart:hover .cart-icon {
    transform: scale(1.1);
}

/* Responsividade Otimizada */
@media (max-width: 768px) {
    .kit-card-flex {
        flex-direction: column;
        gap: var(--spacing-3);
        align-items: stretch;
    }
    
    .kit-image-compact {
        width: 100%;
        height: 180px;
        min-width: unset;
        min-height: 180px;
        align-self: center;
        max-width: 300px;
    }
    
    .kit-info-compact {
        padding: var(--spacing-2) 0;
    }
    
    .kit-header-row {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
    
    .kit-price {
        font-size: 1rem;
    }
    
    .btn-add-cart {
        min-width: 100%;
        height: 48px;
        font-size: 0.9rem;
    }
}

/* Estados do Card */
.kit-card.out-of-stock {
    opacity: 0.7;
}

.kit-card.out-of-stock .kit-image::after {
    content: 'Esgotado';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-lg);
}

/* Loading State para Cards */
.kit-card.loading {
    background: var(--gray-100);
    animation: pulse 2s infinite;
}

.kit-card.loading .kit-content {
    opacity: 0.5;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* Skeleton Loading */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

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

.skeleton-image {
    width: 100%;
    height: 200px;
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.skeleton-title {
    height: 20px;
    margin: var(--spacing-4) var(--spacing-5) var(--spacing-2);
    border-radius: var(--border-radius);
}

.skeleton-description {
    height: 60px;
    margin: 0 var(--spacing-5) var(--spacing-4);
    border-radius: var(--border-radius);
}

.skeleton-price {
    height: 24px;
    width: 80px;
    margin: 0 var(--spacing-5) var(--spacing-4);
    border-radius: var(--border-radius);
}

.skeleton-button {
    height: 40px;
    margin: 0 var(--spacing-5) var(--spacing-5);
    border-radius: var(--border-radius);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-16);
    grid-column: 1 / -1;
}

.empty-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-4);
    opacity: 0.4;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.08));
    transition: all var(--transition-slow);
}

.empty-state:hover .empty-icon {
    opacity: 0.6;
    transform: scale(1.05);
}

.empty-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-600);
    margin-bottom: var(--spacing-2);
}

.empty-description {
    color: var(--gray-500);
    margin-bottom: var(--spacing-6);
}

.empty-action {
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-3) var(--spacing-6);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.empty-action:hover {
    background: var(--primary-dark);
}

/* Design Responsivo Aprimorado para Grid */

/* Desktops grandes */
@media (max-width: 1400px) {
    .kits-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 1.25rem;
    }
}

/* Desktops médios */
@media (max-width: 1200px) {
    .kits-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }
    
    .kit-content {
        padding: var(--spacing-5);
    }
}

/* Tablets grandes */
@media (max-width: 1024px) {
    .kits-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.875rem;
        padding: 0 var(--spacing-2);
    }
    
    .kit-content {
        padding: var(--spacing-4);
    }
    
    .kit-title {
        font-size: var(--font-size-lg);
    }
}

/* Tablets pequenos */
@media (max-width: 768px) {
    .kits-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
        padding: 0 var(--spacing-3);
    }
    
    .kit-content {
        padding: var(--spacing-4);
    }
    
    .kit-title {
        font-size: var(--font-size-base);
        line-height: 1.4;
        margin-bottom: var(--spacing-2);
    }
    
    .kit-description {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-3);
        line-height: 1.5;
    }
    
    .price-current {
        font-size: var(--font-size-lg);
    }
    
    .kit-actions {
        gap: var(--spacing-2);
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        padding: var(--spacing-3);
        font-size: var(--font-size-sm);
        min-width: auto;
    }
}

/* Smartphones grandes */
@media (max-width: 600px) {
    .kits-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.625rem;
        padding: 0 var(--spacing-2);
    }
    
    .kit-card {
        border-radius: var(--border-radius-md);
    }
    
    .kit-content {
        padding: var(--spacing-3);
    }
    
    .kit-title {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-2);
    }
    
    .kit-description {
        font-size: var(--font-size-xs);
        margin-bottom: var(--spacing-2);
    }
    
    .price-current {
        font-size: var(--font-size-base);
    }
}

/* Smartphones pequenos */
@media (max-width: 480px) {
    .kits-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
        padding: 0 var(--spacing-3);
    }
    
    .kit-card {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .kit-content {
        padding: var(--spacing-4);
    }
    
    .kit-title {
        font-size: var(--font-size-base);
        text-align: center;
        margin-bottom: var(--spacing-3);
    }
    
    .kit-description {
        text-align: center;
        margin-bottom: var(--spacing-4);
    }
    
    .kit-price {
        text-align: center;
        margin-bottom: var(--spacing-4);
    }
    
    .kit-actions {
        flex-direction: column;
        gap: var(--spacing-3);
    }
    
    .btn {
        width: 100%;
        min-width: auto;
        padding: var(--spacing-4);
        font-size: var(--font-size-base);
    }
}

/* Animações de Entrada */
.kit-card.animate-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease-out forwards;
}

.kit-card.animate-in:nth-child(1) { animation-delay: 0.1s; }
.kit-card.animate-in:nth-child(2) { animation-delay: 0.2s; }
.kit-card.animate-in:nth-child(3) { animation-delay: 0.3s; }
.kit-card.animate-in:nth-child(4) { animation-delay: 0.4s; }
.kit-card.animate-in:nth-child(5) { animation-delay: 0.5s; }
.kit-card.animate-in:nth-child(6) { animation-delay: 0.6s; }
.kit-card.animate-in:nth-child(7) { animation-delay: 0.7s; }
.kit-card.animate-in:nth-child(8) { animation-delay: 0.8s; }
.kit-card.animate-in:nth-child(9) { animation-delay: 0.9s; }
.kit-card.animate-in:nth-child(10) { animation-delay: 1.0s; }
.kit-card.animate-in:nth-child(11) { animation-delay: 1.1s; }
.kit-card.animate-in:nth-child(12) { animation-delay: 1.2s; }
.kit-card.animate-in:nth-child(13) { animation-delay: 1.3s; }
.kit-card.animate-in:nth-child(14) { animation-delay: 1.4s; }
.kit-card.animate-in:nth-child(15) { animation-delay: 1.5s; }
.kit-card.animate-in:nth-child(16) { animation-delay: 1.6s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Desabilitar animações se preferir movimento reduzido */
@media (prefers-reduced-motion: reduce) {
    .kit-card {
        animation: none;
        opacity: 1;
        transform: none;
    }
    
    .kit-card:hover {
        transform: none;
    }
    
    .kit-card:hover .kit-image img {
        transform: none;
    }
}

/* Melhorias de Acessibilidade */
.kit-card:focus-within {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn-details:focus,
.btn-add-cart:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Tooltip para informações adicionais */
.tooltip {
    position: relative;
    cursor: help;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gray-800);
    color: var(--white);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
    z-index: 1000;
}

.tooltip:hover::after {
    opacity: 1;
}

/* Indicador de Carregamento para Ações */
.btn-loading {
    position: relative;
    color: transparent;
}

.btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    color: var(--white);
}