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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-text-color, #333333);
    line-height: 1.6;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: var(--tg-theme-bg-color, #1a1a1a);
        --text-color: var(--tg-theme-text-color, #ffffff);
        --secondary-text: var(--tg-theme-hint-color, #aaaaaa);
        --card-bg: var(--tg-theme-secondary-bg-color, #2a2a2a);
        --border-color: #444444;
        --shadow-color: rgba(0, 0, 0, 0.5);
    }
}

.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    text-align: center;
    position: relative;
}

.header-content h1 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 5px;
}

.tagline {
    font-size: 14px;
    opacity: 0.9;
}

.cart-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.2);
    padding: 10px 15px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s;
}

.cart-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.main-nav {
    display: flex;
    justify-content: center;
    padding: 15px;
    background: #f8f9fa;
    gap: 10px;
    flex-wrap: wrap;
    border-bottom: 1px solid #dee2e6;
}

.nav-btn {
    padding: 8px 16px;
    border: 2px solid #6c757d;
    background: transparent;
    color: #6c757d;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
}

.nav-btn.active,
.nav-btn:hover {
    background: #6c757d;
    color: white;
}

.categories {
    display: flex;
    justify-content: center;
    padding: 15px;
    background: #f8f9fa;
    gap: 10px;
    flex-wrap: wrap;
}

.category-btn {
    padding: 8px 16px;
    border: 2px solid #667eea;
    background: transparent;
    color: #667eea;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
}

.category-btn.active,
.category-btn:hover {
    background: #667eea;
    color: white;
}

.main-content {
    padding: 20px;
    min-height: 60vh;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.product-card {
    background: white;
    border-radius: 12px;
    padding: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.product-image-container {
    position: relative;
    margin-bottom: 15px;
}

.product-image {
    width: 100%;
    aspect-ratio: 3/4;
    background: #f0f0f0 center/cover no-repeat;
    border-radius: 8px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: #ccc;
}

.image-count {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.product-info h3 {
    font-size: 18px;
    margin-bottom: 8px;
    font-weight: 600;
}

.product-price {
    font-size: 20px;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 10px;
}

.product-category {
    display: inline-block;
    background: #e9ecef;
    color: #6c757d;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.product-age {
    font-size: 14px;
    color: #667eea;
    margin-bottom: 10px;
    font-weight: 500;
}

.add-to-cart-btn {
    width: 100%;
    padding: 10px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.3s;
}

.add-to-cart-btn:hover {
    background: #5a6fd8;
}

.loading {
    text-align: center;
    padding: 40px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
}

.modal-content {
    background: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
}

#checkoutModal .modal-content {
    margin: 8% auto;
    width: 80%;
    max-width: 400px;
    padding: 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

#checkoutModal form {
    padding: 15px 30px 30px 30px;
    margin: 0;
}

#checkoutModal .modal-header {
    padding: 25px 30px 20px 30px;
    margin: 0;
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.close {
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: #000;
}

#productModal .close {
    position: absolute;
    top: 15px;
    right: 20px;
    z-index: 1001;
    background: rgba(255, 255, 255, 0.9);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    color: #666;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    transition: all 0.3s ease;
}

#productModal .close:hover {
    background: rgba(255, 255, 255, 1);
    color: #333;
    transform: scale(1.1);
}

.cart-items {
    padding: 20px;
}

.cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid #eee;
}

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

.cart-item-info {
    flex-grow: 1;
}

.cart-item-name {
    font-weight: 600;
    margin-bottom: 5px;
}

.cart-item-price {
    color: #667eea;
    font-weight: 500;
}

.quantity-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.quantity-btn {
    width: 30px;
    height: 30px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.quantity-btn:hover {
    background: #f0f0f0;
}

.cart-footer {
    padding: 20px;
    border-top: 1px solid #eee;
}

.cart-total {
    text-align: center;
    margin-bottom: 15px;
    font-size: 18px;
}

.checkout-btn {
    width: 100%;
    padding: 15px;
    background: #28a745;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.checkout-btn:hover {
    background: #218838;
}

.product-details {
    padding: 0;
}

#productModal .modal-content {
    position: relative;
}

.product-detail-gallery {
    position: relative;
    margin-bottom: 20px;
}

.image-gallery {
    position: relative;
    width: 100%;
}

.main-image {
    width: 100%;
    aspect-ratio: 3/4;
    max-height: 400px;
    background: #f0f0f0 center/cover no-repeat;
    border-radius: 0;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.7);
    color: white;
    border: none;
    padding: 10px 15px;
    font-size: 18px;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.3s;
}

.gallery-btn:hover {
    background: rgba(0,0,0,0.9);
}

.prev-btn {
    left: 10px;
}

.next-btn {
    right: 10px;
}

.image-indicators {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}

.indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: background 0.3s;
}

.indicator.active {
    background: white;
}

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

.product-age-badge {
    display: inline-block;
    background: #667eea;
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    margin-bottom: 15px;
    font-weight: 500;
}

.product-description {
    margin: 20px 0;
}

.detailed-description {
    margin-top: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.6;
}

.product-specs {
    margin: 15px 0;
    padding: 15px;
    background: #f1f3f4;
    border-radius: 8px;
}

.product-specs h4 {
    margin: 0 0 8px 0;
    color: #495057;
    font-size: 14px;
    font-weight: 600;
}

.product-specs p {
    margin: 0;
    font-size: 14px;
    color: #6c757d;
}

.colors, .sizes {
    margin: 20px 0;
}

.colors h3, .sizes h3 {
    margin-bottom: 10px;
    font-size: 16px;
    color: #495057;
}

.color-options, .size-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.color-btn, .size-btn {
    padding: 8px 16px;
    border: 2px solid #ddd;
    background: white;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 14px;
    min-width: 60px;
    text-align: center;
}

.color-btn:hover, .size-btn:hover {
    border-color: #667eea;
}

.color-btn.selected, .size-btn.selected {
    border-color: #667eea;
    background: #667eea;
    color: white;
}

.form-group {
    margin-bottom: 20px;
}

#checkoutModal .form-group {
    margin-bottom: 25px;
}

#checkoutModal .payment-options {
    margin: 25px 0;
}

#checkoutModal .order-summary {
    margin: 20px 0 25px 0;
}

#checkoutModal .submit-btn {
    margin-top: 10px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
}

.order-summary {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.submit-btn {
    width: 100%;
    padding: 15px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.submit-btn:hover {
    background: #5a6fd8;
}

.section {
    display: block;
}

.section.hidden {
    display: none;
}

.content-section {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.content-section h2 {
    color: #667eea;
    margin-bottom: 20px;
    text-align: center;
}

.content-section h3 {
    color: #495057;
    margin: 20px 0 10px 0;
}

.about-intro {
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.about-section {
    margin-bottom: 25px;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.about-section h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #495057;
}

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

.principles-list li {
    padding: 12px 0;
    border-bottom: 1px solid #eee;
    color: #6c757d;
}

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

.principles-list strong {
    color: #495057;
    font-weight: 600;
}

.delivery-info ul {
    list-style: none;
    padding: 0;
}

.delivery-info li {
    padding: 8px 0;
    border-bottom: 1px solid #eee;
}

.delivery-info li:last-child {
    border-bottom: none;
}

.contacts-info {
    display: grid;
    gap: 20px;
}

.contact-item h3 {
    margin-bottom: 8px;
    font-size: 16px;
}

.contact-item p {
    margin: 5px 0;
}

.contact-item a {
    color: #667eea;
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

.payment-options {
    margin: 20px 0;
}

.payment-options h3 {
    margin-bottom: 15px;
    color: #495057;
}

.payment-method {
    margin-bottom: 15px;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    transition: border-color 0.3s;
}

#checkoutModal .payment-method {
    margin-bottom: 18px;
    padding: 18px;
}

.payment-method:hover,
.payment-method:has(input:checked) {
    border-color: #667eea;
}

.payment-method label {
    display: flex;
    align-items: center;
    padding: 15px;
    cursor: pointer;
    margin: 0;
}

.payment-method input[type="radio"] {
    display: none;
}

.payment-icon {
    font-size: 24px;
    margin-right: 15px;
    min-width: 40px;
}

.payment-method div strong {
    display: block;
    margin-bottom: 5px;
    color: #495057;
}

.payment-method div p {
    margin: 0;
    font-size: 14px;
    color: #6c757d;
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 15px;
        padding: 0 10px;
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
    
    .header-content h1 {
        font-size: 24px;
    }
    
    .main-nav,
    .categories {
        padding: 10px;
        gap: 8px;
    }
    
    .nav-btn,
    .category-btn {
        padding: 6px 12px;
        font-size: 14px;
    }
    
    .content-section {
        padding: 15px;
    }
}

@media (prefers-color-scheme: dark),
.dark-theme {
    .product-card {
        background: var(--tg-theme-secondary-bg-color, #2a2a2a);
        border: 1px solid var(--border-color, #444444);
        color: var(--tg-theme-text-color, #ffffff);
    }
    
    .modal-content {
        background: var(--tg-theme-bg-color, #1a1a1a);
        color: var(--tg-theme-text-color, #ffffff);
        border: 1px solid var(--border-color, #444444);
    }
    
    .modal-header {
        border-bottom: 1px solid var(--border-color, #444444);
        color: var(--tg-theme-text-color, #ffffff);
    }
    
    .product-detail-info {
        color: var(--tg-theme-text-color, #ffffff);
    }
    
    .product-specs {
        background: var(--tg-theme-secondary-bg-color, #2a2a2a);
        color: var(--tg-theme-text-color, #ffffff);
        border: 1px solid var(--border-color, #444444);
    }
    
    .detailed-description {
        background: var(--tg-theme-secondary-bg-color, #2a2a2a);
        color: var(--tg-theme-text-color, #ffffff);
        border: 1px solid var(--border-color, #444444);
    }
    
    .about-intro,
    .about-section {
        background: var(--tg-theme-secondary-bg-color, #2a2a2a);
        color: var(--tg-theme-text-color, #ffffff);
        border: 1px solid var(--border-color, #444444);
    }
    
    .principles-list li {
        border-bottom: 1px solid var(--border-color, #444444);
        color: var(--tg-theme-text-color, #ffffff);
    }
    
    .form-group input {
        background: var(--tg-theme-secondary-bg-color, #2a2a2a);
        color: var(--tg-theme-text-color, #ffffff);
        border: 2px solid var(--border-color, #444444);
    }
    
    .form-group label {
        color: var(--tg-theme-text-color, #ffffff);
    }
    
    .order-summary {
        background: var(--tg-theme-secondary-bg-color, #2a2a2a);
        color: var(--tg-theme-text-color, #ffffff);
        border: 1px solid var(--border-color, #444444);
    }
    
    .payment-method {
        background: var(--tg-theme-secondary-bg-color, #2a2a2a);
        border: 2px solid var(--border-color, #444444);
        color: var(--tg-theme-text-color, #ffffff);
    }
    
    .payment-method:hover,
    .payment-method:has(input:checked) {
        border-color: #667eea;
        background: var(--tg-theme-secondary-bg-color, #2a2a2a);
    }
    
    .cart-item {
        background: var(--tg-theme-secondary-bg-color, #2a2a2a);
        color: var(--tg-theme-text-color, #ffffff);
        border: 1px solid var(--border-color, #444444);
    }
    
    .nav-btn {
        background: var(--tg-theme-secondary-bg-color, #2a2a2a);
        color: var(--tg-theme-text-color, #ffffff);
        border: 1px solid var(--border-color, #444444);
    }
    
    .nav-btn.active {
        background: #667eea;
        color: white;
        border-color: #667eea;
    }
    
    .nav-btn:hover {
        background: var(--tg-theme-secondary-bg-color, #333333);
        border-color: #667eea;
    }
    
    .content-section h2,
    .content-section h3,
    .content-section h4 {
        color: var(--tg-theme-text-color, #ffffff);
    }
    
    .content-section p,
    .content-section li {
        color: var(--tg-theme-text-color, #ffffff);
    }
    
    .delivery-info ul li,
    .contact-info p {
        color: var(--tg-theme-text-color, #ffffff);
    }
    
    /* Close button for dark theme */
    #productModal .close {
        background: rgba(42, 42, 42, 0.9);
        color: var(--tg-theme-text-color, #ffffff);
        border: 1px solid var(--border-color, #444444);
    }
    
    #productModal .close:hover {
        background: var(--tg-theme-secondary-bg-color, #2a2a2a);
        color: var(--tg-theme-text-color, #ffffff);
    }
}