:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #e94560;
    --text-color: #333;
    --text-light: #666;
    --bg-color: #fff;
    --bg-light: #f8f9fa;
    --border-color: #e0e0e0;
    --success-color: #28a745;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

header {
    background: var(--primary-color);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 2px;
}

.logo span {
    color: var(--accent-color);
}

nav {
    display: flex;
    align-items: center;
    gap: 30px;
}

nav a {
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

nav a:hover {
    color: var(--accent-color);
}

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

nav a:hover::after {
    width: 100%;
}

.cart-icon {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    position: relative;
}

.cart-icon svg {
    width: 24px;
    height: 24px;
    fill: #fff;
}

.cart-count {
    background: var(--accent-color);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: -8px;
    right: -8px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: #fff;
    border-radius: 3px;
    transition: var(--transition);
}

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #fff;
    padding: 100px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    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 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></svg>');
    background-size: 100px;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--accent-color);
    color: #fff;
}

.btn-primary:hover {
    background: #d63050;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(233, 69, 96, 0.4);
}

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

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

.section {
    padding: 80px 20px;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-title p {
    color: var(--text-light);
    font-size: 1.1rem;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.product-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.product-image {
    position: relative;
    height: 250px;
    overflow: hidden;
    background: var(--bg-light);
}

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

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

.product-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--accent-color);
    color: #fff;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.product-info {
    padding: 20px;
}

.product-info h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.product-info p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.product-price {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.price {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-color);
}

.add-to-cart {
    background: var(--primary-color);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    font-size: 0.9rem;
}

.add-to-cart:hover {
    background: var(--accent-color);
}

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

.features {
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    text-align: center;
    padding: 40px 30px;
    background: #fff;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.feature-card svg {
    width: 60px;
    height: 60px;
    fill: var(--accent-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.feature-card p {
    color: var(--text-light);
}

.about-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.about-image img {
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.about-content h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.about-content p {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

footer {
    background: var(--primary-color);
    color: #fff;
    padding: 60px 20px 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto 40px;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--accent-color);
}

.footer-section p,
.footer-section a {
    color: rgba(255,255,255,0.8);
    display: block;
    margin-bottom: 10px;
}

.footer-section a:hover {
    color: var(--accent-color);
}

.contact-info {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.contact-info svg {
    width: 20px;
    height: 20px;
    fill: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p {
    color: rgba(255,255,255,0.6);
}

.catalog-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #fff;
    padding: 60px 20px;
    text-align: center;
}

.catalog-header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.catalog-header p {
    opacity: 0.8;
}

.catalog-filters {
    padding: 30px 20px;
    background: var(--bg-light);
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: #fff;
}

.product-detail {
    padding: 60px 20px;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.product-gallery {
    position: relative;
}

.product-gallery img {
    width: 100%;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.product-details h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.product-category {
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 20px;
}

.product-description {
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

.product-detail-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 30px;
}

.quantity-selector {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 30px;
}

.quantity-selector label {
    font-weight: 500;
}

.quantity-controls {
    display: flex;
    align-items: center;
    border: 2px solid var(--border-color);
    border-radius: 30px;
    overflow: hidden;
}

.quantity-btn {
    width: 45px;
    height: 45px;
    border: none;
    background: transparent;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.quantity-btn:hover {
    background: var(--bg-light);
}

.quantity-input {
    width: 60px;
    height: 45px;
    border: none;
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
}

.product-features {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.product-features h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.product-features ul {
    display: grid;
    gap: 10px;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-light);
}

.product-features li svg {
    width: 20px;
    height: 20px;
    fill: var(--success-color);
}

.cart-page {
    padding: 60px 20px;
    min-height: 60vh;
}

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

.cart-header {
    text-align: center;
    margin-bottom: 50px;
}

.cart-header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.cart-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.cart-items {
    background: #fff;
    border-radius: 15px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.cart-item {
    display: grid;
    grid-template-columns: 120px 1fr auto auto;
    gap: 20px;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item-image {
    width: 120px;
    height: 100px;
    border-radius: 10px;
    overflow: hidden;
}

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

.cart-item-info h3 {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.cart-item-info p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.cart-item-price {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent-color);
}

.cart-item-remove {
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    transition: var(--transition);
}

.cart-item-remove svg {
    width: 24px;
    height: 24px;
    fill: var(--text-light);
}

.cart-item-remove:hover svg {
    fill: var(--accent-color);
}

.cart-summary {
    background: #fff;
    border-radius: 15px;
    box-shadow: var(--shadow);
    padding: 30px;
    height: fit-content;
    position: sticky;
    top: 100px;
}

.cart-summary h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    color: var(--text-light);
}

.summary-row.total {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
    padding-top: 20px;
    margin-top: 20px;
    border-top: 2px solid var(--border-color);
}

.checkout-btn {
    width: 100%;
    margin-top: 30px;
    padding: 16px;
    font-size: 1.1rem;
}

.empty-cart {
    text-align: center;
    padding: 80px 20px;
}

.empty-cart svg {
    width: 100px;
    height: 100px;
    fill: var(--text-light);
    margin-bottom: 30px;
    opacity: 0.5;
}

.empty-cart h2 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.empty-cart p {
    color: var(--text-light);
    margin-bottom: 30px;
}

.thank-you-page {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
}

.thank-you-content {
    text-align: center;
    max-width: 600px;
}

.thank-you-icon {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--success-color) 0%, #20c997 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
}

.thank-you-icon svg {
    width: 60px;
    height: 60px;
    fill: #fff;
}

.thank-you-content h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.thank-you-content p {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.order-number {
    background: var(--bg-light);
    padding: 20px;
    border-radius: 10px;
    margin: 30px 0;
}

.order-number span {
    color: var(--accent-color);
    font-weight: 700;
    font-size: 1.3rem;
}

.breadcrumb {
    padding: 20px;
    background: var(--bg-light);
}

.breadcrumb ul {
    display: flex;
    gap: 10px;
    max-width: 1200px;
    margin: 0 auto;
}

.breadcrumb li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-light);
}

.breadcrumb li a:hover {
    color: var(--accent-color);
}

.breadcrumb li:not(:last-child)::after {
    content: '/';
    color: var(--border-color);
}

@media (max-width: 992px) {
    .about-section {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .product-detail-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .cart-content {
        grid-template-columns: 1fr;
    }
    
    .cart-summary {
        position: static;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--primary-color);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        transform: translateX(-100%);
        transition: var(--transition);
    }
    
    nav.active {
        transform: translateX(0);
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .section-title h2 {
        font-size: 1.8rem;
    }
    
    .cart-item {
        grid-template-columns: 80px 1fr;
        gap: 15px;
    }
    
    .cart-item-image {
        width: 80px;
        height: 80px;
    }
    
    .cart-item-price,
    .cart-item-remove {
        grid-column: 2;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-section h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .contact-info {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: 10px 15px;
    }
    
    .logo {
        font-size: 1.4rem;
    }
    
    .hero {
        padding: 60px 15px;
    }
    
    .section {
        padding: 50px 15px;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
}

.notification {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--success-color);
    color: #fff;
    padding: 15px 25px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    gap: 10px;
    transform: translateX(150%);
    transition: var(--transition);
    z-index: 9999;
}

.notification.show {
    transform: translateX(0);
}

.notification svg {
    width: 24px;
    height: 24px;
    fill: #fff;
}