/* ===== Змінні ===== */
:root {
    --primary-color: #0891b2;
    --primary-dark: #0e7490;
    --primary-light: #06b6d4;
    --secondary-color: #3b82f6;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    
    --bg-color: #ffffff;
    --bg-secondary: #f0f9ff;
    --bg-card: #ffffff;
    --text-color: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
}

/* Темна тема */
body.dark-theme {
    --bg-color: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --text-color: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #334155;
}

/* ===== Загальні стилі ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: var(--transition);
    overflow-x: hidden;
}

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

/* ===== Навігація ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-card);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-lg);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    cursor: pointer;
}

.logo i {
    font-size: 2rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-icons {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-color);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
    position: relative;
}

.icon-btn:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

.badge {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--danger-color);
    color: white;
    font-size: 0.7rem;
    padding: 0.2rem 0.4rem;
    border-radius: 10px;
    font-weight: bold;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    transition: var(--transition);
    border-radius: 2px;
}

/* ===== Hero секція ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0891b2 0%, #06b6d4 100%);
    overflow: hidden;
    margin-top: 70px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,144C960,149,1056,139,1152,122.7C1248,107,1344,85,1392,74.7L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    animation: wave 15s linear infinite;
}

@keyframes wave {
    0% { background-position: 0 0; }
    100% { background-position: 1440px 0; }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    animation: fadeInUp 1s ease;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-waves {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
}

.hero-waves svg {
    display: block;
}

/* ===== Кнопки ===== */
.btn {
    padding: 0.875rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-color);
}

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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

/* ===== Пошук ===== */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 100px;
}

.search-overlay.active {
    display: flex;
}

.search-container {
    width: 100%;
    max-width: 600px;
    position: relative;
    padding: 0 20px;
}

#searchInput {
    width: 100%;
    padding: 1.5rem 3rem 1.5rem 1.5rem;
    font-size: 1.2rem;
    border: none;
    border-radius: var(--border-radius);
    background: white;
    color: var(--text-color);
}

.close-search {
    position: absolute;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
}

.search-results {
    margin-top: 1rem;
    background: white;
    border-radius: var(--border-radius);
    max-height: 400px;
    overflow-y: auto;
}

.search-result-item {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    gap: 1rem;
    align-items: center;
}

.search-result-item:hover {
    background: var(--bg-secondary);
}

.search-result-item img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
}

/* ===== Секції ===== */
section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-color);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* ===== Фільтри ===== */
.filters-section {
    background: var(--bg-secondary);
}

.filters {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    align-items: flex-end;
    margin-bottom: 2rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.filter-select,
.price-input {
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-card);
    color: var(--text-color);
    font-size: 1rem;
    transition: var(--transition);
}

.filter-select:focus,
.price-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.price-range {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.price-input {
    width: 100px;
}

.categories-chips {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
}

.category-chip {
    padding: 0.5rem 1.25rem;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.category-chip:hover,
.category-chip.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* ===== Товари ===== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.product-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
    z-index: 10;
}

.badge-hit {
    background: var(--danger-color);
    color: white;
}

.badge-new {
    background: var(--success-color);
    color: white;
}

.badge-sale {
    background: var(--accent-color);
    color: white;
}

.product-image-container {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
    background: var(--bg-secondary);
}

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

.product-card:hover .product-image {
    transform: scale(1.05);
}

.image-nav {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 5px;
}

.image-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition);
}

.image-dot.active {
    background: white;
    width: 24px;
    border-radius: 4px;
}

.product-actions {
    position: absolute;
    top: 10px;
    left: 10px;
    display: flex;
    gap: 0.5rem;
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-actions {
    opacity: 1;
}

.action-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: white;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.action-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.action-btn.active {
    background: var(--danger-color);
    color: white;
}

.product-info {
    padding: 1.25rem;
}

.product-category {
    font-size: 0.85rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.product-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-color);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.product-price {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.product-old-price {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-decoration: line-through;
}

.product-discount {
    background: var(--danger-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: bold;
}

.product-views {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.product-buy {
    width: 100%;
    padding: 0.875rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.product-buy:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* ===== Завантаження ===== */
.loading {
    text-align: center;
    padding: 3rem;
    grid-column: 1 / -1;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== Про нас ===== */
.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.about-card {
    text-align: center;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.about-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.about-card h3 {
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.about-card p {
    color: var(--text-secondary);
}

/* ===== Контакти ===== */
.contact-section {
    background: var(--bg-secondary);
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
}

.contact-item i {
    font-size: 2rem;
    color: var(--primary-color);
}

.contact-item h4 {
    margin-bottom: 0.25rem;
    color: var(--text-color);
}

.contact-item p {
    color: var(--text-secondary);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.social-link {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-card);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

/* ===== Footer ===== */
.footer {
    background: var(--text-color);
    color: white;
    text-align: center;
    padding: 2rem 0;
}

/* ===== Модальні вікна ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 3000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

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

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--bg-secondary);
    color: var(--text-color);
    cursor: pointer;
    font-size: 1.5rem;
    z-index: 10;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--danger-color);
    color: white;
}

.modal-header {
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-color);
}

.modal-body {
    padding: 2rem;
}

/* ===== Кнопка "Вгору" ===== */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    z-index: 999;
}

.scroll-top.active {
    display: flex;
}

.scroll-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ===== Адаптивність ===== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: var(--bg-card);
        width: 100%;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transition: var(--transition);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-group {
        width: 100%;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .price-range {
        flex-direction: column;
    }
    
    .price-input {
        width: 100%;
    }
}

/* ===== Пусте повідомлення ===== */
.empty-message {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.empty-message i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* ===== Елементи кошика та обраного ===== */
.cart-item,
.favorite-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
}

.cart-item img,
.favorite-item img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
}

.cart-item-info,
.favorite-item-info {
    flex: 1;
}

.cart-item-name,
.favorite-item-name {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.cart-item-price,
.favorite-item-price {
    color: var(--primary-color);
    font-weight: bold;
}

.remove-btn {
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.remove-btn:hover {
    background: #dc2626;
}

.cart-total {
    padding: 1.5rem;
    border-top: 2px solid var(--border-color);
    text-align: right;
}

.cart-total-label {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.cart-total-price {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}