/* NEXA CORE - Main Stylesheet */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #000000;
    --color-secondary: #333333;
    --color-muted: #666666;
    --color-light: #999999;
    --color-border: #e5e5e5;
    --color-bg: #ffffff;
    --color-bg-alt: #f4f4f5;
    --color-dark: #0b0b0b;
    --color-accent: #c8a45e;
    --font-display: 'Helvetica Neue', Arial, sans-serif;
    --font-body: 'Helvetica Neue', Arial, sans-serif;
    --header-height: 64px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-primary);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

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

button {
    cursor: pointer;
    font-family: inherit;
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    transition: all 0.35s ease;
}

.site-header.transparent {
    background: transparent;
    border-bottom-color: transparent;
}

.site-header.transparent .nav-link,
.site-header.transparent .site-logo {
    color: #ffffff;
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 48px);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-logo {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--color-primary);
    text-decoration: none;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 13px;
    letter-spacing: 0.06em;
    color: var(--color-primary);
    text-decoration: none;
    opacity: 0.75;
    transition: opacity 0.2s;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    opacity: 1;
}

.nav-link .badge {
    margin-left: 4px;
    font-size: 10px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 50%;
    width: 16px;
    height: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Mobile menu */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    color: var(--color-primary);
}

/* Hero */
.hero {
    min-height: 100vh;
    min-height: 600px;
    background-color: var(--color-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(30,30,30,0.8) 0%, var(--color-dark) 70%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 24px;
}

.hero-eyebrow {
    font-size: 11px;
    letter-spacing: 0.3em;
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(40px, 8vw, 96px);
    font-weight: 300;
    letter-spacing: -0.04em;
    line-height: 1.05;
    color: #ffffff;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 16px;
    line-height: 1.7;
    color: rgba(255,255,255,0.6);
    max-width: 480px;
    margin: 0 auto 40px;
}

.btn {
    display: inline-block;
    padding: 16px 48px;
    font-size: 13px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    text-decoration: none;
    transition: all 0.3s ease;
    font-family: var(--font-display);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: #333;
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

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

.btn-outline-light {
    background-color: transparent;
    color: #ffffff;
    border: 1px solid #ffffff;
}

.btn-outline-light:hover {
    background-color: #ffffff;
    color: var(--color-primary);
}

.btn-sm {
    padding: 10px 24px;
    font-size: 12px;
}

/* Section styles */
.section {
    padding: 100px 0;
}

.section-alt {
    background-color: var(--color-bg-alt);
}

.section-dark {
    background-color: var(--color-dark);
    color: #ffffff;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 48px);
}

.section-eyebrow {
    font-size: 11px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: #999;
    margin-bottom: 16px;
    text-align: center;
}

.section-dark .section-eyebrow {
    color: rgba(255,255,255,0.5);
}

.section-title {
    font-size: clamp(28px, 3.5vw, 48px);
    font-weight: 300;
    letter-spacing: -0.03em;
    text-align: center;
    margin-bottom: 60px;
    color: var(--color-primary);
}

.section-dark .section-title {
    color: #ffffff;
}

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.product-card {
    display: block;
    text-decoration: none;
    color: var(--color-primary);
    background-color: #ffffff;
    overflow: hidden;
    transition: box-shadow 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.product-card:hover {
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}

.product-image-wrap {
    position: relative;
    padding-top: 100%;
    overflow: hidden;
    background-color: var(--color-bg-alt);
}

.product-image-wrap img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.product-info {
    padding: 16px;
}

.product-name {
    font-size: 13px;
    line-height: 1.5;
    color: #333;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 39px;
}

.product-price {
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-price-current {
    font-size: 16px;
    font-weight: 500;
}

.product-price-original {
    font-size: 13px;
    color: #999;
    text-decoration: line-through;
}

.discount-badge {
    font-size: 11px;
    padding: 3px 8px;
    background: var(--color-primary);
    color: #fff;
}

/* Category Cards */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.category-card {
    display: block;
    padding: 60px 40px;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: all 0.3s ease;
}

.category-card:hover {
    background: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
}

.category-card h3 {
    font-size: 24px;
    font-weight: 400;
    letter-spacing: -0.02em;
}

/* Product Detail */
.product-detail {
    padding-top: var(--header-height);
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    padding: 48px 0;
}

.product-gallery {
    display: grid;
    gap: 16px;
}

.product-gallery-main {
    position: relative;
    padding-top: 100%;
    overflow: hidden;
    background: var(--color-bg-alt);
}

.product-gallery-main img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-gallery-thumbs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.thumb {
    position: relative;
    padding-top: 100%;
    overflow: hidden;
    background: var(--color-bg-alt);
    cursor: pointer;
}

.thumb img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-meta-sku {
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: #999;
    margin-bottom: 12px;
}

.product-detail-name {
    font-size: clamp(24px, 3vw, 36px);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 20px;
}

.product-detail-price {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.product-detail-price .current {
    font-size: 28px;
    font-weight: 500;
}

.product-detail-price .original {
    font-size: 18px;
    color: #999;
    text-decoration: line-through;
}

.product-description {
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: 20px 0;
    margin-bottom: 32px;
    font-size: 14px;
    line-height: 1.7;
    color: #666;
}

.quantity-selector {
    display: flex;
    align-items: center;
    margin-bottom: 24px;
}

.quantity-selector label {
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #999;
    margin-right: 16px;
}

.quantity-controls {
    display: flex;
}

.quantity-controls button {
    width: 44px;
    height: 44px;
    border: 1px solid var(--color-border);
    background: #fff;
    font-size: 18px;
    cursor: pointer;
}

.quantity-controls .qty-value {
    width: 60px;
    height: 44px;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
}

.product-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.product-actions .btn {
    flex: 1;
    min-width: 200px;
    text-align: center;
}

/* Filters */
.filters-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
    align-items: center;
    justify-content: space-between;
}

.filter-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    font-size: 13px;
    letter-spacing: 0.06em;
    border: 1px solid var(--color-border);
    background: #fff;
    color: var(--color-primary);
    cursor: pointer;
    transition: all 0.2s;
}

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

.search-input {
    padding: 10px 16px;
    font-size: 14px;
    border: 1px solid var(--color-border);
    outline: none;
    width: 260px;
    font-family: inherit;
}

/* Cart */
.cart-layout {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 48px;
    align-items: flex-start;
}

.cart-item {
    display: flex;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--color-border);
}

.cart-item-image {
    width: 100px;
    height: 100px;
    flex-shrink: 0;
    overflow: hidden;
    background: var(--color-bg-alt);
}

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

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

.cart-item-name {
    font-size: 14px;
    color: var(--color-primary);
    margin-bottom: 8px;
    line-height: 1.4;
    text-decoration: none;
    display: block;
}

.cart-item-price {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.cart-item-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cart-item-total {
    font-size: 16px;
    font-weight: 500;
    min-width: 100px;
    text-align: right;
}

.order-summary {
    border: 1px solid var(--color-border);
    padding: 32px;
    background: var(--color-bg-alt);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 14px;
}

.summary-row.total {
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
    font-size: 18px;
    font-weight: 500;
}

.coupon-section {
    margin-bottom: 24px;
}

.coupon-section label {
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #999;
    display: block;
    margin-bottom: 8px;
}

.coupon-input-group {
    display: flex;
    gap: 8px;
}

.coupon-input-group input {
    flex: 1;
    padding: 10px 12px;
    font-size: 14px;
    border: 1px solid var(--color-border);
    outline: none;
    font-family: inherit;
}

.coupon-input-group button {
    padding: 10px 20px;
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: var(--color-primary);
    color: #fff;
    border: none;
    cursor: pointer;
}

/* Checkout */
.checkout-layout {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 48px;
    align-items: flex-start;
}

.address-card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    border: 1px solid var(--color-border);
    cursor: pointer;
    background: #fff;
    transition: all 0.2s;
}

.address-card:hover,
.address-card.selected {
    border-color: var(--color-primary);
    background: var(--color-bg-alt);
}

.payment-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: all 0.2s;
}

.payment-option:hover,
.payment-option.selected {
    border-color: var(--color-primary);
    background: var(--color-bg-alt);
}

.form-group {
    margin-bottom: 16px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    font-size: 14px;
    border: 1px solid var(--color-border);
    outline: none;
    font-family: inherit;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* Orders */
.order-card {
    border: 1px solid var(--color-border);
    margin-bottom: 16px;
    overflow: hidden;
}

.order-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background: var(--color-bg-alt);
    cursor: pointer;
}

.order-meta {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.order-meta-label {
    font-size: 11px;
    color: #999;
    margin-bottom: 4px;
}

.order-status {
    font-size: 12px;
    padding: 4px 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.order-status.pending { background: #fff3e0; color: #e65100; }
.order-status.processing { background: #e3f2fd; color: #1565c0; }
.order-status.shipped { background: #e8f5e9; color: #1a6b3a; }
.order-status.delivered { background: #e8f5e9; color: #1a6b3a; }
.order-status.cancelled { background: #ffebee; color: #c62828; }

.order-details {
    padding: 24px;
    border-top: 1px solid var(--color-border);
}

/* Footer */
.site-footer {
    background-color: var(--color-dark);
    color: #ffffff;
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 48px;
}

.footer-title {
    font-size: 12px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 20px;
    color: rgba(255,255,255,0.4);
}

.footer-brand {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 0.08em;
    margin-bottom: 24px;
}

.footer-desc {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255,255,255,0.6);
    max-width: 300px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #ffffff;
}

.footer-contact {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-bottom {
    margin-top: 60px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    font-size: 12px;
    color: rgba(255,255,255,0.35);
}

/* Breadcrumb */
.breadcrumb {
    margin-bottom: 32px;
    font-size: 13px;
    color: #999;
}

.breadcrumb a {
    color: #999;
    text-decoration: none;
}

/* Auth */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-dark);
    color: #ffffff;
}

.auth-box {
    text-align: center;
    padding: 0 24px;
    max-width: 400px;
    width: 100%;
}

.auth-title {
    font-size: clamp(28px, 3vw, 40px);
    font-weight: 300;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}

.auth-subtitle {
    font-size: 15px;
    color: rgba(255,255,255,0.5);
    margin-bottom: 40px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.auth-form input {
    padding: 14px 16px;
    font-size: 14px;
    border: 1px solid rgba(255,255,255,0.2);
    background: transparent;
    color: #fff;
    outline: none;
    font-family: inherit;
}

.auth-form input::placeholder {
    color: rgba(255,255,255,0.4);
}

.auth-toggle {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
    margin-top: 24px;
}

.auth-toggle button {
    background: none;
    border: none;
    color: #fff;
    text-decoration: underline;
    cursor: pointer;
    font-family: inherit;
}

/* Alerts */
.alert {
    padding: 14px 18px;
    font-size: 13px;
    margin-bottom: 16px;
}

.alert-error {
    border: 1px solid rgba(255,100,100,0.5);
    color: #c00;
    background: #ffebee;
}

.alert-success {
    border: 1px solid #1a6b3a;
    color: #1a6b3a;
    background: #e8f5e9;
}

/* Loading */
.loading {
    text-align: center;
    padding: 80px 0;
    color: #999;
}

.empty-state {
    text-align: center;
    padding: 80px 0;
}

.empty-state p {
    font-size: 18px;
    color: #666;
    margin-bottom: 24px;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 48px;
}

.pagination button {
    padding: 10px 20px;
    font-size: 13px;
    border: 1px solid var(--color-border);
    background: #fff;
    cursor: pointer;
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination .current {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #fff;
}

/* Related products */
.related-section {
    margin-top: 80px;
}

/* Responsive */
@media (max-width: 768px) {
    .main-nav {
        display: none;
    }

    .mobile-toggle {
        display: block;
    }

    .product-detail-grid,
    .cart-layout,
    .checkout-layout {
        grid-template-columns: 1fr;
    }

    .filters-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .search-input {
        width: 100%;
    }

    .order-meta {
        flex-direction: column;
        gap: 12px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .product-actions .btn {
        min-width: 100%;
    }
}

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 16px 24px;
    background: var(--color-primary);
    color: #fff;
    font-size: 14px;
    z-index: 9999;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* Wishlist heart */
.wishlist-btn {
    background: none;
    border: 1px solid var(--color-primary);
    padding: 10px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s;
}

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