/**
 * RELATED PRODUCTS - Стили для секции похожих товаров
 * Адаптивная сетка товаров с анимацией и hover-эффектами
 * @version 1.0
 */

/* ============================================
   ОСНОВНАЯ СЕКЦИЯ
   ============================================ */

.related-products-section {
    padding: 5rem 0;
    background: linear-gradient(to bottom, #ffffff 0%, #f8f9fa 100%);
    border-top: 1px solid #e9ecef;
}

.related-products-title {
    font-size: 2.5rem;
    font-weight: 300;
    text-align: center;
    margin-bottom: 3rem;
    color: #1a1a1a;
    letter-spacing: 2px;
    text-transform: uppercase;
    position: relative;
    padding-bottom: 1.5rem;
}

.related-products-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 2px;
    background: linear-gradient(to right, transparent, #B8860B, transparent);
}

/* ============================================
   СЕТКА ТОВАРОВ
   ============================================ */

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

/* ============================================
   КАРТОЧКА ТОВАРА (переиспользуем существующие стили)
   ============================================ */

.related-products-section .luxury-product-card {
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

/* Анимация появления с задержкой для каждой карточки */
.related-products-section .luxury-product-card:nth-child(1) {
    animation-delay: 0.1s;
}

.related-products-section .luxury-product-card:nth-child(2) {
    animation-delay: 0.2s;
}

.related-products-section .luxury-product-card:nth-child(3) {
    animation-delay: 0.3s;
}

.related-products-section .luxury-product-card:nth-child(4) {
    animation-delay: 0.4s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   АДАПТИВНОСТЬ
   ============================================ */

/* Планшеты (landscape) */
@media (max-width: 1200px) {
    .related-products-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }

    .related-products-title {
        font-size: 2rem;
    }
}

/* Планшеты (portrait) */
@media (max-width: 768px) {
    .related-products-section {
        padding: 3rem 0;
    }

    .related-products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .related-products-title {
        font-size: 1.75rem;
        margin-bottom: 2rem;
        letter-spacing: 1px;
    }
}

/* Мобильные устройства */
@media (max-width: 480px) {
    .related-products-section {
        padding: 2rem 0;
    }

    .related-products-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .related-products-title {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }
}

/* ============================================
   ДОПОЛНИТЕЛЬНЫЕ СТИЛИ ДЛЯ КАРТОЧЕК
   ============================================ */

/* Улучшенный hover-эффект для карточек в секции похожих товаров */
.related-products-section .luxury-product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

/* Плавный переход изображений */
.related-products-section .luxury-product-image img {
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.related-products-section .luxury-product-card:hover .luxury-product-image img {
    transform: scale(1.05);
}

/* Анимация кнопок действий */
.related-products-section .luxury-product-actions {
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.related-products-section .luxury-product-card:hover .luxury-product-actions {
    opacity: 1;
    transform: translateY(0);
}

/* Стили для кнопки "В корзину" */
.related-products-section .add-to-cart-btn {
    width: 100%;
    transition: all 0.3s ease;
}

.related-products-section .add-to-cart-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(184, 134, 11, 0.3);
}

/* ============================================
   ПУСТОЕ СОСТОЯНИЕ (если нет похожих товаров)
   ============================================ */

.related-products-empty {
    text-align: center;
    padding: 3rem 0;
    color: #6c757d;
    font-size: 1.1rem;
}

/* ============================================
   ЗАГРУЗКА (skeleton для будущей оптимизации)
   ============================================ */

.related-products-skeleton {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.related-products-skeleton-item {
    background: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
}

.related-products-skeleton-image {
    width: 100%;
    height: 300px;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

.related-products-skeleton-content {
    padding: 1rem;
}

.related-products-skeleton-line {
    height: 1rem;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    margin-bottom: 0.5rem;
    border-radius: 4px;
}

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

/* ============================================
   ОПТИМИЗАЦИЯ ПРОИЗВОДИТЕЛЬНОСТИ
   ============================================ */

/* Ленивая загрузка изображений */
.related-products-section img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s ease-in;
}

.related-products-section img[loading="lazy"].loaded {
    opacity: 1;
}

/* Reduce motion для пользователей с настройками доступности */
@media (prefers-reduced-motion: reduce) {
    .related-products-section .luxury-product-card,
    .related-products-section .luxury-product-image img,
    .related-products-section .luxury-product-actions,
    .related-products-section .add-to-cart-btn {
        animation: none;
        transition: none;
    }

    .related-products-section .luxury-product-card:hover {
        transform: none;
    }
}