:root {
    /* Color Palette - Nothing Monochrome */
    --color-bg: #FFFFFF;
    --color-primary: #000000;
    --color-accent: #000000;
    --color-accent-light: #333333;
    --color-secondary: #666666;
    --color-tertiary: #999999;
    --color-border: #000000;
    --color-hover: #F5F5F5;
    --color-text-muted: #666666;
    --color-dot: #FF0000;
    
    /* Typography - Nothing uses very geometric sans */
    --font-display: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Effects */
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    
    /* Transitions */
    --transition-fast: 100ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-primary);
    line-height: 1.4;
    overflow-x: hidden;
    font-weight: 400;
    letter-spacing: -0.01em;
}

/* Header Styles */
.site-header {
    background: var(--color-bg);
    border-bottom: 2px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: -0.04em;
    color: var(--color-primary);
    text-transform: lowercase;
}

.logo::before {
    content: '•';
    color: var(--color-dot);
    margin-right: 0.5rem;
    font-size: 1.2rem;
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.btn-shuffle,
.btn-cart {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    border: 2px solid var(--color-border);
    background: transparent;
    color: var(--color-primary);
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-shuffle:hover,
.btn-cart:hover {
    background: var(--color-primary);
    color: var(--color-bg);
}

.btn-cart {
    position: relative;
}

.cart-count {
    background: var(--color-dot);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.15rem 0.4rem;
    border-radius: 0;
    min-width: 18px;
    text-align: center;
}

/* Search Container */
.search-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    animation: fadeInDown 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.search-wrapper {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.8rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    border: 2px solid var(--color-border);
    border-radius: 0;
    background: var(--color-bg);
    transition: all var(--transition-fast);
    letter-spacing: -0.01em;
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-hover);
}

/* Category Pills */
.category-pills {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.pill {
    padding: 0.4rem 1rem;
    border: 2px solid var(--color-border);
    background: transparent;
    color: var(--color-primary);
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pill:hover {
    background: var(--color-hover);
}

.pill.active {
    background: var(--color-primary);
    color: var(--color-bg);
}

/* Breadcrumb */
.breadcrumb-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg) var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    animation: fadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.breadcrumb-back {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.4rem 0.8rem;
    border: 2px solid var(--color-border);
    background: transparent;
    color: var(--color-primary);
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.breadcrumb-back:hover {
    background: var(--color-primary);
    color: var(--color-bg);
}

.breadcrumb-trail {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
    overflow-x: auto;
    padding: var(--spacing-xs) 0;
}

.breadcrumb-item {
    width: 50px;
    height: 50px;
    overflow: hidden;
    border: 2px solid var(--color-border);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.breadcrumb-item:hover {
    border-color: var(--color-primary);
    border-width: 3px;
}

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

/* Grid Container */
.grid-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg) var(--spacing-xl);
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1px;
    background: var(--color-border);
    border: 1px solid var(--color-border);
}

@media (max-width: 1200px) {
    .grid-container {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 900px) {
    .grid-container {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 600px) {
    .grid-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Product Card */
.product-card {
    position: relative;
    background: var(--color-bg);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-fast);
    animation: scaleIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}

@keyframes scaleIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.product-card:nth-child(1) { animation-delay: 0.02s; }
.product-card:nth-child(2) { animation-delay: 0.04s; }
.product-card:nth-child(3) { animation-delay: 0.06s; }
.product-card:nth-child(4) { animation-delay: 0.08s; }
.product-card:nth-child(5) { animation-delay: 0.1s; }
.product-card:nth-child(6) { animation-delay: 0.12s; }
.product-card:nth-child(7) { animation-delay: 0.14s; }
.product-card:nth-child(8) { animation-delay: 0.16s; }
.product-card:nth-child(9) { animation-delay: 0.18s; }
.product-card:nth-child(10) { animation-delay: 0.2s; }

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

.product-card:hover::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 3px solid var(--color-primary);
    pointer-events: none;
    z-index: 10;
}

.product-image {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    display: block;
}

.product-info {
    padding: var(--spacing-sm);
    background: var(--color-bg);
}

.product-title {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0.4rem;
    color: var(--color-primary);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.product-tags {
    display: flex;
    gap: 0.25rem;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
}

.product-tag {
    font-size: 0.6rem;
    padding: 0.15rem 0.4rem;
    background: transparent;
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
    font-weight: 400;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.product-price {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.product-actions {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.25rem;
}

.btn-view,
.btn-add-cart {
    padding: 0.5rem;
    border: 2px solid var(--color-border);
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: transparent;
}

.btn-view {
    color: var(--color-primary);
}

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

.btn-add-cart {
    color: var(--color-primary);
    padding: 0.5rem 0.7rem;
}

.btn-add-cart:hover {
    background: var(--color-primary);
    color: var(--color-bg);
}

.btn-add-cart svg {
    stroke-width: 2.5;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.98);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-lg);
    animation: fadeIn 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.modal-content {
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    max-width: 1000px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalSlideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: transparent;
    border: 2px solid var(--color-border);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 10;
}

.modal-close:hover {
    background: var(--color-primary);
    color: var(--color-bg);
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.modal-image {
    width: 100%;
    border: 2px solid var(--color-border);
}

.modal-details h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-sm);
}

.modal-details .product-tags {
    margin-bottom: var(--spacing-md);
}

.modal-details .product-price {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
}

.modal-description {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    font-size: 0.9rem;
}

.modal-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.modal-actions .btn-add-cart,
.modal-actions .btn-view {
    padding: 0.75rem 1.5rem;
    font-size: 0.75rem;
}

.similar-products {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--color-border);
}

.similar-products h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
}

/* Image Carousel */
.image-carousel {
    width: 100%;
}

.carousel-main {
    width: 100%;
    margin-bottom: var(--spacing-sm);
    border: 2px solid var(--color-border);
}

.carousel-main-image {
    width: 100%;
    display: block;
}

.carousel-thumbnails {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 0.5rem;
}

.carousel-thumb {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border: 2px solid var(--color-border);
    cursor: pointer;
    opacity: 0.5;
    transition: all var(--transition-fast);
}

.carousel-thumb:hover {
    opacity: 0.8;
}

.carousel-thumb.active {
    opacity: 1;
    border-color: var(--color-primary);
    border-width: 3px;
}

/* Variant Selector */
.variant-selector {
    margin: var(--spacing-md) 0;
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.variant-group {
    margin-bottom: var(--spacing-sm);
}

.variant-group:last-child {
    margin-bottom: 0;
}

.variant-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    margin-bottom: 0.4rem;
    color: var(--color-text-muted);
}

.variant-select {
    width: 100%;
    padding: 0.6rem 0.8rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    border: 2px solid var(--color-border);
    background: var(--color-bg);
    cursor: pointer;
    transition: all var(--transition-fast);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.8rem center;
    padding-right: 2.5rem;
}

.variant-select:hover {
    border-color: var(--color-primary);
    background-color: var(--color-hover);
}

.variant-select:focus {
    outline: none;
    border-color: var(--color-primary);
    background-color: var(--color-hover);
}

/* Cart Item Variant Text */
.cart-item-variant {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: 0.2rem;
    text-transform: uppercase;
    letter-spacing: 0.01em;
}

/* Share Button & Menu */
.btn-share {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem;
    margin-top: var(--spacing-md);
    border: 2px solid var(--color-border);
    background: transparent;
    color: var(--color-primary);
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-share:hover {
    background: var(--color-hover);
}

.share-menu {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    border: 2px solid var(--color-border);
    background: var(--color-bg);
    animation: slideDown 0.2s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.share-menu-header {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.share-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.share-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem;
    border: 2px solid var(--color-border);
    background: transparent;
    color: var(--color-primary);
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.share-option:hover {
    background: var(--color-primary);
    color: var(--color-bg);
}

.share-option svg {
    flex-shrink: 0;
}

.share-option span {
    flex: 1;
}

@media (max-width: 768px) {
    .modal-grid {
        grid-template-columns: 1fr;
    }
    
    .carousel-thumbnails {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .share-options {
        grid-template-columns: 1fr;
    }
}

/* Cart Sidebar */
.cart-sidebar {
    position: fixed;
    top: 0;
    right: -400px;
    width: 400px;
    height: 100vh;
    background: var(--color-bg);
    border-left: 2px solid var(--color-border);
    z-index: 1100;
    transition: right var(--transition-slow);
    display: flex;
    flex-direction: column;
}

.cart-sidebar.active {
    right: 0;
}

.cart-header {
    padding: var(--spacing-lg);
    border-bottom: 2px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-header h2 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    text-transform: lowercase;
}

.cart-close {
    background: transparent;
    border: 2px solid var(--color-border);
    cursor: pointer;
    padding: 0.4rem;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.cart-close:hover {
    background: var(--color-primary);
    color: var(--color-bg);
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.cart-item {
    display: grid;
    grid-template-columns: 70px 1fr auto;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.cart-item-image {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border: 2px solid var(--color-border);
}

.cart-item-details {
    flex: 1;
}

.cart-item-title {
    font-weight: 500;
    font-size: 0.85rem;
    margin-bottom: 0.3rem;
    letter-spacing: -0.01em;
}

.cart-item-price {
    color: var(--color-primary);
    font-weight: 500;
    font-size: 0.9rem;
}

.cart-item-remove {
    background: transparent;
    border: 2px solid var(--color-border);
    color: var(--color-primary);
    cursor: pointer;
    padding: 0.3rem;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    align-self: start;
    transition: all var(--transition-fast);
}

.cart-item-remove:hover {
    background: var(--color-primary);
    color: var(--color-bg);
}

.cart-footer {
    padding: var(--spacing-lg);
    border-top: 2px solid var(--color-border);
}

.cart-total {
    display: flex;
    justify-content: space-between;
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.01em;
}

.btn-checkout {
    width: 100%;
    padding: 0.75rem;
    background: var(--color-primary);
    color: var(--color-bg);
    border: 2px solid var(--color-primary);
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-checkout:hover {
    background: transparent;
    color: var(--color-primary);
}

.cart-empty {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

@media (max-width: 480px) {
    .cart-sidebar {
        width: 100%;
        right: -100%;
    }
}