/* frontend/product/product.css */

/* ===== Общие стили ===== */
.product-page {
    padding: 80px 0;
    background: var(--bg-primary);
    min-height: 60vh;
    transition: background-color 0.3s;
}

.product-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}

/* ===== Хлебные крошки ===== */
.breadcrumbs {
    margin-bottom: 40px;
    font-size: 0.95rem;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.breadcrumbs a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s;
    position: relative;
    padding-bottom: 2px;
    white-space: nowrap;
}

.breadcrumbs a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--red-light);
    transition: width 0.3s;
}

.breadcrumbs a:hover {
    color: var(--red-light);
}

.breadcrumbs a:hover::after {
    width: 100%;
}

.breadcrumbs span {
    color: var(--red-light);
    font-weight: 500;
    word-break: break-word;
}

/* ===== Детальная информация ===== */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 80px;
    align-items: start;
}

/* ===== Галерея ===== */
.product-gallery {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.gallery-main {
    background: white;
    border-radius: 30px;
    padding: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: var(--border-light);
}

.gallery-main:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.gallery-main img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
    transition: transform 0.5s cubic-bezier(0.2, 0.9, 0.3, 1);
}

.gallery-main img:hover {
    transform: scale(1.03);
}

.gallery-thumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.thumb-item {
    width: 80px;
    height: 80px;
    border: 2px solid transparent;
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s;
    background: var(--bg-tertiary);
    box-shadow: var(--shadow-sm);
}

.thumb-item:hover {
    border-color: var(--red-light);
    transform: scale(1.05);
}

.thumb-item.active {
    border-color: var(--red-light);
    box-shadow: 0 0 10px var(--shadow-red);
}

.thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===== Информация о товаре ===== */
.product-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.product-title {
    font-size: clamp(1.5rem, 6vw, 2.8rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
    line-height: 1.2;
    letter-spacing: -0.5px;
    word-break: break-word;
}

.product-category {
    font-size: clamp(0.9rem, 4vw, 1.1rem);
    color: var(--text-secondary);
    border-left: 3px solid var(--red-light);
    padding-left: 15px;
    margin-bottom: 10px;
    word-break: break-word;
}

.product-category a {
    color: var(--red-light);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.product-category a:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

/* ===== Блок характеристик ===== */
.product-specs {
    margin: 25px 0 20px;
    padding: 20px 0;
    border-top: var(--border-light);
    border-bottom: var(--border-light);
}

.spec-item {
    display: flex;
    margin-bottom: 15px;
    line-height: 1.6;
    font-size: 0.95rem;
    max-width: 100%;
}

.spec-item:last-child {
    margin-bottom: 0;
}

.spec-label {
    min-width: 130px;
    font-weight: 600;
    color: var(--red-light);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.spec-value {
    color: var(--text-secondary);
    flex: 1;
    /* Критически важно для длинных строк */
    word-break: break-word;
    overflow-wrap: break-word;
    -webkit-hyphens: auto;
    -ms-hyphens: auto;
    hyphens: auto;
    max-width: 100%;
    font-size: clamp(0.8rem, 3.5vw, 0.95rem);
}

.spec-value p {
    margin: 0 0 5px;
}

/* ===== Вкладки ===== */
.product-tabs {
    margin: 30px 0 20px;
    width: 100%;
}

.tabs-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    border-bottom: 2px solid var(--border-light);
    padding-bottom: 5px;
    margin-bottom: 25px;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 600;
    padding: 12px 20px;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    border-radius: 30px 30px 0 0;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(139, 0, 0, 0.1);
}

.tab-btn.active {
    color: var(--red-light);
    background: rgba(139, 0, 0, 0.15);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -7px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--red-light);
    border-radius: 2px 2px 0 0;
}

.tabs-content {
    background: var(--bg-secondary);
    border-radius: 20px;
    padding: 25px;
    border-left: 3px solid var(--red-dark);
    box-shadow: inset 0 2px 5px rgba(0,0,0,0.5);
    min-height: 150px;
}

.tab-pane {
    display: none;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    word-break: break-word;
    overflow-wrap: break-word;
}

.tab-pane.active {
    display: block;
}

.tab-pane p {
    margin-bottom: 15px;
}

.tab-pane ul, .tab-pane ol {
    margin-left: 20px;
    margin-bottom: 15px;
}

.tab-pane li {
    margin-bottom: 5px;
}

/* ===== Кнопка заказа ===== */
.btn--order {
    font-size: clamp(1rem, 5vw, 1.2rem);
    padding: 16px 50px;
    align-self: flex-start;
    border: none;
    cursor: pointer;
    background: var(--red-dark);
    box-shadow: 0 10px 20px var(--shadow-red);
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 50px;
    color: #ffffff;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
}

.btn--order:hover {
    background: var(--red-light);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 20px 30px var(--shadow-red);
}

/* ===== Похожие товары ===== */
.related-products {
    margin-top: 80px;
    padding-top: 40px;
    border-top: var(--border-light);
    position: relative;
}

.related-products::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--red-light), transparent);
    border-radius: 2px;
}

.section-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
    white-space: normal;
    word-break: keep-all;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--red-light), transparent);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 30px;
}

.related-grid .product-card {
    background: var(--gradient-card);
    border-radius: 20px;
    border: var(--border-light);
    display: flex;
    flex-direction: column;
    transition: all 0.3s cubic-bezier(0.2, 0.9, 0.3, 1);
    overflow: hidden;
    height: 100%;
    box-shadow: var(--shadow-md);
}

.related-grid .product-card:hover {
    transform: translateY(-8px);
    border-color: var(--red-light);
    box-shadow: 0 25px 40px -10px var(--shadow-red);
}

.related-grid .product-card__image {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    overflow: hidden;
    position: relative;
}

.related-grid .product-card__image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.5) 100%);
    pointer-events: none;
}

.related-grid .product-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.related-grid .product-card:hover .product-card__image img {
    transform: scale(1.08);
}

.related-grid .product-card__info {
    padding: 20px 15px;
    text-align: center;
    border-top: var(--border-light);
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
}

.related-grid .product-card__title {
    font-size: clamp(0.9rem, 4vw, 1.1rem);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.4;
    word-break: break-word;
}

.related-grid .btn--small {
    display: inline-block;
    padding: 8px 20px;
    background: var(--red-dark);
    color: #ffffff;
    text-decoration: none;
    border-radius: 40px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s;
    margin-top: auto;
    align-self: center;
    border: none;
    box-shadow: 0 5px 10px var(--shadow-red);
}

.related-grid .btn--small:hover {
    background: var(--red-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 15px var(--shadow-red);
}

/* ===== Стрелки для галереи ===== */
.gallery-main {
    position: relative;
}

.gallery-prev,
.gallery-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: var(--border-light);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
    opacity: 0;
    z-index: 5;
    backdrop-filter: blur(2px);
}

.gallery-main:hover .gallery-prev,
.gallery-main:hover .gallery-next {
    opacity: 1;
}

.gallery-prev {
    left: 10px;
}

.gallery-next {
    right: 10px;
}

.gallery-prev:hover,
.gallery-next:hover {
    background: var(--red-dark);
    color: #ffffff;
    border-color: var(--red-light);
    transform: translateY(-50%) scale(1.1);
}

/* ===== АДАПТИВНОСТЬ ===== */

@media (max-width: 992px) {
    .product-detail {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .product-gallery {
        max-width: 600px;
        margin: 0 auto;
        width: 100%;
    }
    .gallery-main {
        min-height: 350px;
    }
    .product-info {
        text-align: center;
    }
    .btn--order {
        align-self: center;
    }
    .related-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .product-title {
        font-size: 2.2rem;
    }
    .tabs-nav {
        justify-content: center;
        overflow-x: auto;
        white-space: nowrap;
        flex-wrap: nowrap;
        padding-bottom: 10px;
        -webkit-overflow-scrolling: touch;
    }
    .tabs-nav::-webkit-scrollbar {
        height: 4px;
    }
    .tabs-nav::-webkit-scrollbar-thumb {
        background: var(--red-light);
        border-radius: 2px;
    }
    .tab-btn {
        padding: 12px 18px;
        font-size: 0.95rem;
        flex: 0 0 auto;
    }
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .breadcrumbs {
        font-size: 0.9rem;
        justify-content: center;
    }
    .gallery-main {
        min-height: 300px;
    }
    .thumb-item {
        width: 60px;
        height: 60px;
    }
    .spec-item {
        flex-direction: column;
        margin-bottom: 20px;
        max-width: 100%;
    }
    .spec-label {
        margin-bottom: 5px;
        min-width: auto;
    }
    .spec-value {
        font-size: 0.9rem;
    }
    .gallery-prev,
    .gallery-next {
        opacity: 0.8;
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .product-page {
        padding: 20px 0;
    }
    .product-container {
        padding: 0 10px;
    }
    .product-detail {
        display: flex;
        flex-direction: column;
        gap: 30px;
        margin-bottom: 40px;
    }
    .gallery-main {
        min-height: 250px;
        padding: 15px;
        border-radius: 15px;
    }
    .gallery-main img {
        max-height: 200px;
    }
    .thumb-item {
        width: 40px;
        height: 40px;
    }
    .gallery-prev,
    .gallery-next {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
        opacity: 0.8;
    }
    .product-title {
        font-size: 1.6rem;
        text-align: center;
        margin-bottom: 5px;
    }
    .product-category {
        font-size: 0.95rem;
        border-left: none;
        border-top: 2px solid var(--red-light);
        padding: 8px 0 0;
        margin-top: 5px;
        text-align: center;
    }
    .product-specs {
        margin: 15px 0;
        padding: 15px 0;
    }
    .spec-item {
        font-size: 0.85rem;
        margin-bottom: 12px;
        flex-direction: column;
        gap: 4px;
        max-width: 100%;
    }
    .spec-label {
        font-size: 0.75rem;
        min-width: unset;
        width: 100%;
        margin-bottom: 3px;
    }
    .spec-value {
        font-size: 0.9rem;
        line-height: 1.4;
        width: 100%;
    }
    .tabs-nav {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 10px;
        gap: 10px;
        border-bottom: 2px solid var(--border-light);
    }
    .tab-btn {
        padding: 8px 15px;
        font-size: 0.9rem;
        flex: 0 0 auto;
    }
    .tabs-content {
        padding: 12px;
        font-size: 0.9rem;
    }
    .tab-pane {
        font-size: 0.9rem;
    }
    .btn--order {
        width: 100%;
        align-self: center;
        padding: 14px 20px;
        font-size: 1.1rem;
    }
    .related-products {
        margin-top: 40px;
        padding-top: 20px;
    }
    .section-title {
        font-size: 1.5rem;
        margin-bottom: 25px;
        white-space: normal;
        width: 100%;
        left: 0;
        transform: none;
        text-align: center;
    }
    .related-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .related-grid .product-card__image {
        height: 140px;
    }
    .related-grid .product-card__title {
        font-size: 0.9rem;
    }
    .related-grid .btn--small {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
}

@media (max-width: 360px) {
    .product-title {
        font-size: 1.4rem;
    }
    .product-category {
        font-size: 0.85rem;
    }
    .spec-item {
        font-size: 0.8rem;
    }
    .spec-value {
        font-size: 0.8rem;
    }
    .tab-btn {
        padding: 5px 6px;
        font-size: 0.7rem;
    }
    .tabs-content {
        padding: 8px;
    }
    .thumb-item {
        width: 35px;
        height: 35px;
    }
    .gallery-main {
        min-height: 160px;
    }
    .gallery-main img {
        max-height: 160px;
    }
    .related-grid .product-card__image {
        height: 120px;
    }
    .breadcrumbs {
        font-size: 0.7rem;
    }
    .btn--order {
        font-size: 1rem;
        padding: 12px 20px;
    }
}

@media (max-width: 350px) {
    /* Специальная сетка 2x2 для вкладок на очень узких экранах */
    .tabs-nav {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
        border-bottom: none;
    }
    .tab-btn {
        padding: 8px 4px;
        font-size: 11px;
        text-align: center;
        background: rgba(139, 0, 0, 0.05);
        border-radius: 8px;
        border: 1px solid var(--border-light);
        white-space: normal;
        line-height: 1.2;
    }
    .tab-btn.active {
        background: var(--red-light);
        color: #fff;
    }
    .tab-btn.active::after {
        display: none;
    }
}

/* Экстра-маленькие экраны (320px и меньше) */
@media (max-width: 320px) {
    .product-container {
        padding: 0 8px;
    }
    .breadcrumbs {
        font-size: 0.65rem;
        gap: 2px;
    }
    .gallery-main {
        min-height: 150px;
        padding: 5px;
    }
    .gallery-main img {
        max-height: 150px;
    }
    .thumb-item {
        width: 30px;
        height: 30px;
    }
    .product-title {
        font-size: 1.2rem;
    }
    .product-category {
        font-size: 0.8rem;
    }
    .spec-label {
        font-size: 0.7rem;
    }
    .spec-value {
        font-size: 0.75rem;
    }
    .tab-btn {
        padding: 4px 5px;
        font-size: 0.65rem;
    }
    .tabs-content {
        padding: 6px;
        font-size: 0.8rem;
    }
    .btn--order {
        font-size: 0.9rem;
        padding: 10px 15px;
    }
    .related-grid .product-card__image {
        height: 100px;
    }
    .related-grid .product-card__title {
        font-size: 0.8rem;
    }
    .related-grid .btn--small {
        padding: 5px 8px;
        font-size: 0.7rem;
    }
    .gallery-prev,
    .gallery-next {
        width: 24px;
        height: 24px;
        font-size: 0.7rem;
    }
}

/* ===== УЛУЧШЕНИЯ: АБСОЛЮТНЫЙ ПЕРЕНОС ДЛЯ МОБИЛЬНЫХ ===== */
/* Эти правила гарантируют перенос длинных слов и строк на всех мобильных устройствах */
@media (max-width: 768px) {
    /* Применяем ко всем текстовым элементам внутри спецификаций */
    .product-specs .spec-value,
    .product-specs .spec-value *,
    .product-specs .spec-value p,
    .product-specs .spec-value span,
    .product-specs .spec-value br {
        word-break: break-word !important;
        overflow-wrap: break-word !important;
        -webkit-hyphens: auto !important;
        -ms-hyphens: auto !important;
        hyphens: auto !important;
        white-space: normal !important;
        max-width: 100% !important;
    }

    /* Убираем фиксированную ширину у меток и переводим блок в колонку */
    .spec-item {
        flex-direction: column !important;
        align-items: flex-start !important;
    }

    .spec-label {
        min-width: auto !important;
        width: 100% !important;
        display: block;
        margin-bottom: 5px !important;
    }

    .spec-value {
        width: 100% !important;
    }
}

/* Для особо упрямых случаев на 320px уменьшаем шрифт ещё сильнее */
@media (max-width: 320px) {
    .product-specs .spec-value,
    .product-specs .spec-value * {
        font-size: 0.7rem !important;
        line-height: 1.4 !important;
    }
}

/* Глобальная гарантия отсутствия горизонтального скролла */
html, body {
    overflow-x: hidden;
    width: 100%;
}

/* Все секции и контейнеры не должны выходить за пределы */
section, .container, .product-container, .product-gallery, .product-info {
    max-width: 100%;
    box-sizing: border-box;
}