:root {
    --primary-blue: #3498db;
    --dark-blue: #2980b9;
    --news-primary: #e74c3c;
    --news-dark: #c0392b;
    --news-light: #ffebe9;
    --contacts-primary: #9b59b6;
    --contacts-dark: #8e44ad;
    --contacts-light: #f4ecf7;
    --faq-primary: #f39c12;
    --faq-dark: #d68910;
    --faq-light: #fef5e7;
    --product-primary: #27ae60;
    --product-dark: #229954;
    --product-light: #e9f7ef;
    --product-gradient: linear-gradient(135deg, #27ae60 0%, #229954 100%);
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --text-muted: #95a5a6;
    --text-heading: #34495e;
    --bg-white-semi: rgba(255, 255, 255, 0.3);
    --bg-white-strong: rgba(255, 255, 255, 0.4);
    --bg-white-card: rgba(255, 255, 255, 0.5);
    --bg-white-form: rgba(255, 255, 255, 0.9);
    --bg-white-modal: rgba(255, 255, 255, 0.95);
    --bg-overlay: rgba(255, 255, 255, 0.4);
    --bg-dark-overlay: rgba(0, 0, 0, 0.6);
    --shadow-sm: 0 5px 20px rgba(0, 0, 0, 0.08);
    --shadow-card: 0 20px 40px rgba(39, 174, 96, 0.15);
    --shadow-btn: 0 10px 20px rgba(39, 174, 96, 0.3);
    --shadow-modal: 0 20px 40px rgba(0, 0, 0, 0.2);
    --shadow-detail: 0 20px 60px rgba(0, 0, 0, 0.1);
    --border-light: 1px solid rgba(0, 0, 0, 0.1);
    --border-section: 2px solid rgba(0, 0, 0, 0.1);
    --border-spec: 2px solid rgba(39, 174, 96, 0.3);
    --border-input: 2px solid #e0e0e0;
    --border-modal: 1px solid #eee;
    --radius-sm: 8px;
    --radius-card: 12px;
    --radius-product: 16px;
    --radius-lg: 20px;
    --radius-badge: 20px;
    --radius-btn: 50px;
    --transition-smooth: all 0.3s;
    --transition-card: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-transform: transform 0.8s ease;
}

/* ========================================
   БАЗОВЫЕ СТИЛИ И ФОН
   ======================================== */
body {
    position: relative;
    z-index: 0;
    min-height: 100vh;
    background: url('/static/background.jpg') center/cover no-repeat fixed;
}

/* Размытый фоновый слой */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -2;
    background: inherit;
    background-size: cover;
    background-position: center;
    filter: blur(40px);
    transform: scale(1.1);
}

/* Полупрозрачный оверлей */
body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    background: var(--bg-overlay);
    backdrop-filter: blur(10px);
}

/* Основной контент */
.products-page {
    position: relative;
    z-index: 1;
    padding: 120px 0 60px;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   НАВИГАЦИОННЫЕ КРОШКИ
   ======================================== */
.breadcrumbs {
    margin-bottom: 2rem;
    font-size: 0.875rem;
    color: var(--text-dark);
}

.breadcrumbs a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.3s;
}

.breadcrumbs a:hover {
    color: var(--product-primary);
}

.breadcrumbs span {
    margin: 0 0.5rem;
    color: var(--text-dark);
}

/* ========================================
   ШАПКА СТРАНИЦЫ
   ======================================== */
.page-header {
    text-align: center;
    margin-bottom: 70px;
    animation: fadeInUp 0.8s ease;
}

.page-title {
    font-size: 3rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

/* Декоративная линия */
.page-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--product-primary);
    border-radius: 2px;
}

.page-description {
    font-size: 1.125rem;
    color: var(--text-dark);
    max-width: 600px;
    margin: 2rem auto 0;
    line-height: 1.6;
}

/* ========================================
   СЕТКА КАТЕГОРИЙ
   ======================================== */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

/* Карточка категории */
.category-card {
    background: var(--bg-white-semi);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-product);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-card);
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    animation: cardAppear 0.6s ease forwards;
}

/* Каскадная задержка */
.category-card:nth-child(1) { animation-delay: 0.1s; }
.category-card:nth-child(2) { animation-delay: 0.2s; }
.category-card:nth-child(3) { animation-delay: 0.3s; }

/* Эффект при наведении */
.category-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-card);
    background: var(--bg-white-strong);
}

.category-link {
    display: block;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

/* Изображение категории */
.category-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

/* Затемнение при наведении */
.category-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(39, 174, 96, 0.2) 100%);
    z-index: 1;
    opacity: 0;
    transition: opacity 0.5s;
}

.category-card:hover .category-image::before {
    opacity: 1;
}

.category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-transform);
}

.category-card:hover .category-image img {
    transform: scale(1.1);
}

/* Контент категории */
.category-content {
    padding: 1.5rem;
}

.category-name {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
    transition: color 0.3s;
}

.category-card:hover .category-name {
    color: var(--product-primary);
}

.category-description {
    color: var(--text-dark);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.category-action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--product-primary);
    font-weight: 500;
    font-size: 0.875rem;
    transition: gap 0.3s;
}

.category-card:hover .category-action {
    gap: 0.75rem;
}

/* ========================================
   СЕТКА ТОВАРОВ
   ======================================== */
.products-grid {
    display: grid;
    gap: 2rem;
    margin-bottom: 3rem;
}

/* Карточка товара */
.product-card {
    background: var(--bg-white-semi);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-product);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-card);
    opacity: 0;
    transform: translateY(30px);
}

/* Показ карточки */
.product-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Эффект при наведении */
.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-card);
    background: var(--bg-white-strong);
}

.product-link {
    display: block;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

/* Изображение товара */
.product-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

/* Затемнение на изображении */
.product-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.1) 100%);
    z-index: 1;
    opacity: 0;
    transition: opacity 0.5s;
}

.product-card:hover .product-image::after {
    opacity: 1;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-transform);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

/* Контент товара */
.product-content {
    padding: 1.5rem;
}

.product-name {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
    line-height: 1.4;
    transition: color 0.3s;
}

.product-card:hover .product-name {
    color: var(--product-primary);
}

.product-description {
    color: var(--text-dark);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Цена товара */
.product-price {
    font-size: 1.5rem;
    color: var(--product-primary);
    font-weight: 700;
    margin-bottom: 1rem;
}

.product-action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--product-primary);
    font-weight: 500;
    font-size: 0.875rem;
    transition: gap 0.3s;
}

.product-card:hover .product-action {
    gap: 0.75rem;
}

/* ========================================
   КНОПКА "НАЗАД"
   ======================================== */
.back-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-white-semi);
    backdrop-filter: blur(5px);
    border: 2px solid var(--product-primary);
    color: var(--product-primary);
    text-decoration: none;
    border-radius: var(--radius-btn);
    font-weight: 500;
    transition: var(--transition-smooth);
    margin-bottom: 2rem;
}

.back-button:hover {
    background: var(--product-primary);
    color: white;
    gap: 0.75rem;
}

/* ========================================
   СТРАНИЦА ТОВАРА
   ======================================== */
.product-detail-container {
    max-width: 1000px;
    margin: 0 auto;
    background: var(--bg-white-semi);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-detail);
    animation: slideUp 0.8s ease;
}

.product-detail-header {
    padding: 2rem 2rem 1rem;
}

.product-detail-title {
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

/* Метка категории */
.product-category {
    display: inline-block;
    padding: 0.25rem 1rem;
    background: var(--bg-white-card);
    color: var(--product-primary);
    border-radius: var(--radius-badge);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

/* Изображение товара */
.product-main-image {
    width: 100%;
    height: 400px;
    object-fit: contain;
    background: rgba(248, 249, 250, 0.5);
    padding: 2rem;
}

/* Контент товара */
.product-detail-content {
    padding: 2rem;
}

/* Сетка с информацией */
.product-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

/* Блок цены */
.product-price-block {
    background: var(--bg-white-card);
    backdrop-filter: blur(5px);
    padding: 2rem;
    border-radius: var(--radius-card);
    text-align: center;
}

.product-price-value {
    font-size: 2.5rem;
    color: var(--product-primary);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

/* Статус наличия */
.product-availability {
    display: inline-block;
    padding: 0.25rem 1rem;
    background: var(--product-primary);
    color: white;
    border-radius: var(--radius-badge);
    font-size: 0.875rem;
    font-weight: 500;
}

/* ========================================
   СПЕЦИФИКАЦИИ
   ======================================== */
.product-specifications {
    margin-bottom: 2rem;
}

.specifications-title {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: var(--border-spec);
}

.specifications-list {
    list-style: none;
    padding: 0;
}

.specifications-list li {
    padding: 0.75rem 0;
    border-bottom: var(--border-light);
    display: flex;
    justify-content: space-between;
}

.specifications-list li:last-child {
    border-bottom: none;
}

.spec-label {
    color: var(--text-dark);
    font-weight: 500;
}

.spec-value {
    color: var(--text-dark);
    font-weight: 600;
}

/* ========================================
   ПОЛНОЕ ОПИСАНИЕ
   ======================================== */
.product-full-description {
    margin-bottom: 3rem;
}

.full-description-title {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

/* ========================================
   ПОХОЖИЕ ТОВАРЫ
   ======================================== */
.related-products {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: var(--border-section);
}

.related-title {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

/* ========================================
   КНОПКА ЗАПРОСА КП
   ======================================== */
.request-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--product-primary);
    color: white;
    border: none;
    border-radius: var(--radius-btn);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-decoration: none;
}

.request-button:hover {
    background: var(--product-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-btn);
    gap: 1rem;
}

/* ========================================
   ПУСТОЕ СОСТОЯНИЕ
   ======================================== */
.empty-state {
    text-align: center;
    padding: 4rem 1rem;
}

.empty-state p {
    font-size: 1.125rem;
    color: var(--text-light);
}

/* ========================================
   МОДАЛЬНОЕ ОКНО
   ======================================== */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    inset: 0;
    background-color: var(--bg-dark-overlay);
    backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--bg-white-modal);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: var(--radius-card);
    width: 90%;
    max-width: 600px;
    position: relative;
    box-shadow: var(--shadow-modal);
    animation: modalFadeIn 0.3s ease-out;
}

/* Кнопка закрытия */
.close-modal {
    position: absolute;
    right: 20px;
    top: 15px;
    font-size: 28px;
    font-weight: bold;
    color: var(--text-light);
    cursor: pointer;
    transition: color 0.2s;
}

.close-modal:hover {
    color: var(--text-dark);
}

/* Заголовок модального окна */
.modal-header h3 {
    margin-bottom: 5px;
    color: var(--text-dark);
    font-size: 1.5rem;
}

#modalProductName {
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: 25px;
    border-bottom: var(--border-modal);
    padding-bottom: 15px;
}

/* ========================================
   ФОРМА В МОДАЛЬНОМ ОКНЕ
   ======================================== */
.modal-form .form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.modal-form .form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin-bottom: 15px;
}

.modal-form label {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text-heading);
}

/* Поля ввода */
.modal-form input,
.modal-form textarea {
    padding: 12px;
    background: var(--bg-white-form);
    border: var(--border-input);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: border-color 0.2s;
}

.modal-form input:focus,
.modal-form textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    background: white;
}

/* Кнопка отправки */
.submit-kp-btn {
    width: 100%;
    padding: 15px;
    background-color: var(--primary-blue);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
    margin-top: 10px;
}

.submit-kp-btn:hover {
    background-color: var(--dark-blue);
}

/* Подсказка */
.form-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 10px;
    text-align: center;
}

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

/* ========================================
   АДАПТИВНОСТЬ
   ======================================== */
@media (max-width: 992px) {
    .categories-grid,
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-detail-title {
        font-size: 2rem;
    }
    
    .product-info-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .products-page {
        padding: 100px 0 40px;
    }
    
    .page-title {
        font-size: 2.25rem;
    }
    
    .categories-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-detail-header,
    .product-detail-content {
        padding: 1.5rem;
    }
    
    .product-main-image {
        height: 300px;
        padding: 1rem;
    }
}

@media (max-width: 600px) {
    .modal-form .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .modal-content {
        padding: 20px;
        margin: 10px;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 1.75rem;
    }
    
    .product-detail-title {
        font-size: 1.5rem;
    }
    
    .product-price-value {
        font-size: 2rem;
    }
}