/* ===================================
   Productos.Plus — Main Stylesheet
   Modern Marketplace / Neutral Palette
   =================================== */

/* CSS Variables */
:root {
    /* Core Palette */
    --bg:            #f7f8fa;
    --surface:       #ffffff;
    --surface-alt:   #f0f2f5;
    --border:        #e5e7eb;
    --border-strong: #d1d5db;

    /* Text */
    --text-primary:  #1f2328;
    --text-secondary:#374151;
    --text-muted:    #6b7280;
    --text-light:    #9ca3af;

    /* Sidebar */
    --sidebar-bg:    #1a1f2e;
    --sidebar-text:  #e5e7eb;
    --sidebar-muted: #9ca3af;
    --sidebar-border:#2d3548;

    /* Accent — Productos.Plus blue-indigo */
    --accent:        #4f46e5;
    --accent-hover:  #4338ca;
    --accent-light:  #eef2ff;
    --accent-dark:   #3730a3;

    /* Semantic */
    --danger:        #ef4444;
    --danger-light:  #fee2e2;
    --success:       #22c55e;
    --warning:       #f59e0b;

    /* Shadows */
    --shadow-sm:     0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --shadow:        0 4px 16px rgba(0,0,0,.10);
    --shadow-lg:     0 10px 40px rgba(0,0,0,.14);
    --shadow-card:   0 8px 30px rgba(0,0,0,.10);

    /* Typography */
    --font-brand:    'Sora', sans-serif;
    --font-body:     'Inter', -apple-system, 'Segoe UI', sans-serif;

    /* Transitions */
    --t-fast:        0.15s ease;
    --t-normal:      0.25s ease;
    --t-slow:        0.4s ease;

    /* Category icon colours */
    --cat-shoes:     #f59e0b;
    --cat-cookware:  #ef4444;
    --cat-vitamins:  #22c55e;
    --cat-backpacks: #3b82f6;
    --cat-misc:      #8b5cf6;
}

/* ===================================
   RESET & BASE
   =================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: var(--font-body);
    color: var(--text-primary);
    background-color: var(--bg);
    font-size: 15px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ===================================
   MAIN LAYOUT — 3 Column
   =================================== */
.main-container {
    display: grid;
    grid-template-columns: 220px 1fr 200px;
    grid-template-rows: 1fr auto;
    height: 100vh;
    width: 100vw;
    position: relative;
}

/* ===================================
   LEFT SIDEBAR
   =================================== */
.left-column {
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    padding: 1.75rem 1.25rem;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    border-right: 1px solid var(--sidebar-border);
}

/* Brand / Logo */
.logo-section {
    text-align: center;
    margin-bottom: 1.25rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--sidebar-border);
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--accent);
    border-radius: 12px;
    margin-bottom: 0.75rem;
}

.brand-mark .brand-plus {
    font-family: var(--font-brand);
    font-size: 1.6rem;
    font-weight: 800;
    color: #fff;
    line-height: 1;
}

.brand-name {
    font-family: var(--font-brand);
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.3px;
}

.brand-dot {
    color: var(--accent);
}

.brand-plus-word {
    color: var(--accent);
}

.brand-tagline {
    font-size: 0.75rem;
    color: var(--sidebar-muted);
    margin-top: 0.25rem;
    letter-spacing: 0.5px;
}

/* Language Toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
    padding: 0.5rem;
    background: rgba(255,255,255,0.05);
    border-radius: 8px;
    border: 1px solid var(--sidebar-border);
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--sidebar-muted);
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: var(--t-fast);
}

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

.lang-btn:hover:not(.active) {
    color: #fff;
}

.lang-divider {
    color: var(--sidebar-border);
    font-size: 0.75rem;
}

/* Nav */
.main-nav { flex: 1; }

.nav-title {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--sidebar-muted);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-list {
    list-style: none;
    margin-bottom: 1.75rem;
}

.nav-list li { margin-bottom: 2px; }

.nav-icon {
    width: 16px;
    text-align: center;
    margin-right: 4px;
    font-size: 0.8rem;
}

.nav-link {
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    transition: var(--t-fast);
    font-weight: 400;
}

.nav-link:hover,
.nav-link.active {
    background-color: rgba(79, 70, 229, 0.2);
    color: #c7d2fe;
}

.nav-link.active {
    font-weight: 600;
    background-color: rgba(79, 70, 229, 0.25);
    color: #a5b4fc;
}

.filter-section { margin-bottom: 1.75rem; }

.filter-btn {
    width: 100%;
    background-color: transparent;
    border: 1px solid var(--sidebar-border);
    color: var(--sidebar-text);
    padding: 0.6rem 0.75rem;
    margin-bottom: 0.375rem;
    border-radius: 8px;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    transition: var(--t-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-btn:hover {
    background-color: rgba(79, 70, 229, 0.2);
    border-color: var(--accent);
    color: #c7d2fe;
}

.info-links {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--sidebar-border);
}

.info-link {
    color: var(--sidebar-muted);
    text-decoration: none;
    font-size: 0.8rem;
    padding: 0.375rem 0.5rem;
    border-radius: 6px;
    transition: var(--t-fast);
}

.info-link:hover {
    color: #fff;
    background: rgba(255,255,255,0.05);
}

/* ===================================
   CENTER CONTENT
   =================================== */
.center-content {
    background-color: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* Hero strip */
.hero-strip {
    width: 100%;
    padding: 0.875rem 2rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-shrink: 0;
}

.hero-text {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.hero-label {
    font-family: var(--font-brand);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hero-separator {
    color: var(--text-light);
    font-size: 1rem;
}

.hero-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Category chips (centre panel quick filter) */
.category-chips {
    display: flex;
    gap: 0.375rem;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
}
.category-chips::-webkit-scrollbar { display: none; }

.chip {
    padding: 0.3rem 0.75rem;
    border-radius: 20px;
    border: 1.5px solid var(--border);
    background: var(--surface);
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--t-fast);
    white-space: nowrap;
}

.chip:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.chip.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    font-weight: 600;
}

/* Card container */
.card-container {
    width: 100%;
    max-width: 480px;
    flex: 1;
    position: relative;
    padding: 0.75rem 0 0;
}

.product-counter {
    position: absolute;
    top: -0.25rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    color: var(--text-muted);
    z-index: 10;
    white-space: nowrap;
}

.current-product {
    color: var(--accent);
    font-weight: 700;
    font-size: 0.95rem;
}

.card-stack {
    width: 100%;
    height: calc(100% - 2rem);
    position: relative;
}

/* ===================================
   PRODUCT CARD
   =================================== */
.product-card {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: var(--surface);
    border-radius: 20px;
    box-shadow: var(--shadow-card);
    overflow: hidden;
    cursor: grab;
    transition: transform var(--t-normal), box-shadow var(--t-normal);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
}

.product-card:active { cursor: grabbing; }
.product-card:hover  { box-shadow: var(--shadow-lg); }

.product-card:nth-child(1) { z-index: 3; opacity: 1; }
.product-card:nth-child(2) { transform: scale(0.96) translateY(8px); opacity: 0; z-index: 2; }
.product-card:nth-child(3) { transform: scale(0.92) translateY(16px); opacity: 0; z-index: 1; }

.product-card.swiping { transition: none; z-index: 100; }

.product-card.swiped-right { animation: swipeRight 0.4s ease-out forwards; }
.product-card.swiped-left  { animation: swipeLeft  0.4s ease-out forwards; }

@keyframes swipeRight {
    to { transform: translateX(150%) rotate(15deg); opacity: 0; }
}
@keyframes swipeLeft {
    to { transform: translateX(-150%) rotate(-15deg); opacity: 0; }
}

.card-image-container {
    width: 100%;
    height: 56%;
    background-color: var(--surface-alt);
    position: relative;
    overflow: hidden;
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--t-slow);
}

.product-card:hover .card-image { transform: scale(1.04); }

/* Category badge on card */
.card-badge {
    position: absolute;
    top: 0.875rem;
    right: 0.875rem;
    background-color: var(--accent);
    color: #fff;
    padding: 0.3rem 0.75rem;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Category tag (bottom-left of image) */
.card-category-tag {
    position: absolute;
    bottom: 0.875rem;
    left: 0.875rem;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(4px);
    color: #fff;
    padding: 0.25rem 0.625rem;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.card-content {
    padding: 1.25rem 1.5rem 1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-title {
    font-family: var(--font-brand);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    line-height: 1.25;
}

.card-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.625rem;
}

.card-description {
    font-size: 0.875rem;
    line-height: 1.55;
    color: var(--text-secondary);
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-top: 0.625rem;
}

.card-meta-tag {
    font-size: 0.72rem;
    background: var(--surface-alt);
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.875rem;
    border-top: 1px solid var(--border);
    margin-top: 0.5rem;
}

.card-price {
    font-family: var(--font-brand);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.card-details-btn {
    background-color: var(--accent);
    color: #fff;
    border: none;
    padding: 0.5rem 1.25rem;
    border-radius: 20px;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--t-fast);
}

.card-details-btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* ===================================
   CARD CONTROLS
   =================================== */
.card-controls {
    position: absolute;
    bottom: -4.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1.25rem;
    z-index: 20;
    align-items: center;
}

.control-btn {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background-color: var(--surface);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    transition: var(--t-fast);
    box-shadow: var(--shadow-sm);
}

.control-btn:hover {
    transform: scale(1.08);
    box-shadow: var(--shadow);
}

.pass-btn { color: var(--danger); border-color: var(--danger); }
.pass-btn:hover { background-color: var(--danger); color: #fff; }

.like-btn { color: #e91e63; border-color: #e91e63; }
.like-btn:hover { background-color: #e91e63; color: #fff; }

.cart-btn {
    width: 64px;
    height: 64px;
    background-color: var(--accent);
    border-color: var(--accent);
    color: #fff;
    font-size: 1.5rem;
}
.cart-btn:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
}

/* Swipe Hint */
.swipe-hint {
    position: absolute;
    bottom: -7.5rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    animation: fadeInOut 3s ease-in-out infinite;
    white-space: nowrap;
}

.swipe-hint i {
    display: block;
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
    color: var(--accent);
}

@keyframes fadeInOut {
    0%, 100% { opacity: 0.3; }
    50%       { opacity: 0.75; }
}

/* ===================================
   RIGHT SIDEBAR
   =================================== */
.right-column {
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    padding: 1.75rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    overflow-y: auto;
    border-left: 1px solid var(--sidebar-border);
}

.user-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.action-btn {
    position: relative;
    background-color: transparent;
    border: 1px solid var(--sidebar-border);
    color: var(--sidebar-text);
    padding: 0.875rem;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.25rem;
    transition: var(--t-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-btn:hover {
    background-color: var(--accent);
    border-color: var(--accent);
    color: #fff;
    transform: scale(1.03);
}

.cart-count,
.wishlist-count {
    position: absolute;
    top: -6px;
    right: -6px;
    background-color: var(--danger);
    color: #fff;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 700;
    font-family: var(--font-body);
}

.store-info { flex: 1; }

.info-title {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--sidebar-muted);
    margin-bottom: 0.375rem;
    margin-top: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.info-title:first-child { margin-top: 0; }

.info-text {
    font-size: 0.8rem;
    line-height: 1.6;
    color: var(--sidebar-text);
    opacity: 0.8;
}

.social-links {
    display: flex;
    gap: 0.875rem;
    margin-top: 0.375rem;
}

.social-link {
    color: var(--sidebar-muted);
    font-size: 1.1rem;
    transition: var(--t-fast);
}

.social-link:hover {
    color: #fff;
    transform: translateY(-2px);
}

.customer-service { margin-top: auto; }

.service-btn {
    width: 100%;
    background-color: var(--accent);
    color: #fff;
    border: none;
    padding: 0.875rem;
    border-radius: 10px;
    cursor: pointer;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--t-fast);
}

.service-btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* ===================================
   FOOTER
   =================================== */
.main-footer {
    grid-column: 1 / -1;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    padding: 0.75rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--sidebar-border);
}

.copyright {
    font-size: 0.78rem;
    color: var(--sidebar-muted);
}

.admin-trigger {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--t-normal);
    color: var(--sidebar-muted);
    font-size: 0.85rem;
}

.main-footer:hover .admin-trigger { opacity: 1; }
.admin-trigger:hover {
    color: var(--accent);
    transform: scale(1.2);
}

/* ===================================
   MODAL SYSTEM
   =================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.65);
    z-index: 1000;
    display: none;
    backdrop-filter: blur(4px);
}

.modal-overlay.active {
    display: block;
    animation: fadeIn var(--t-fast);
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    z-index: 1001;
    display: none;
    max-width: 580px;
    width: 90%;
    max-height: 88vh;
    opacity: 0;
}

.modal.active {
    display: block;
    animation: modalSlideIn var(--t-normal) forwards;
}

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

@keyframes modalSlideIn {
    to {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
}

.modal-content {
    background-color: var(--surface);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    max-height: 88vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.modal-large { max-width: 860px; width: 92vw; }
.modal-large .modal-content { max-width: 100%; }
.modal-small .modal-content { max-width: 380px; }

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.75rem;
    color: var(--text-muted);
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--t-fast);
    line-height: 1;
}
.modal-close:hover {
    background-color: var(--surface-alt);
    color: var(--text-primary);
    transform: rotate(90deg);
}

.modal-title {
    font-family: var(--font-brand);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    padding-bottom: 0.875rem;
    border-bottom: 2px solid var(--accent);
}

/* ===================================
   SHOPPING CART MODAL
   =================================== */
.cart-items,
.wishlist-items {
    min-height: 160px;
    margin-bottom: 1.25rem;
}

.empty-message {
    text-align: center;
    color: var(--text-muted);
    padding: 2.5rem;
    font-style: italic;
    font-size: 0.9rem;
}

.cart-item {
    display: flex;
    gap: 0.875rem;
    padding: 0.875rem 0;
    border-bottom: 1px solid var(--border);
    align-items: flex-start;
}

.cart-item-image {
    width: 72px;
    height: 72px;
    object-fit: cover;
    border-radius: 10px;
    flex-shrink: 0;
    background: var(--surface-alt);
}

.cart-item-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.cart-item-title {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.cart-item-details {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.cart-item-price {
    font-weight: 700;
    color: var(--accent);
    font-size: 0.9rem;
}

.cart-item-remove {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    font-size: 1rem;
    padding: 0.375rem;
    border-radius: 6px;
    transition: var(--t-fast);
    flex-shrink: 0;
}
.cart-item-remove:hover {
    background: var(--danger-light);
    transform: scale(1.1);
}

.cart-summary {
    background-color: var(--surface-alt);
    padding: 1.25rem;
    border-radius: 12px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.625rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.summary-row.total {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    padding-top: 0.875rem;
    border-top: 2px solid var(--border-strong);
    margin-top: 0.75rem;
    margin-bottom: 0;
}

.total-amount { color: var(--accent); }

.checkout-btn {
    width: 100%;
    background-color: var(--accent);
    color: #fff;
    border: none;
    padding: 0.9rem;
    border-radius: 10px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    margin-top: 1rem;
    transition: var(--t-fast);
}
.checkout-btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* ===================================
   PRODUCT DETAILS MODAL
   =================================== */
.product-details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.detail-main-image {
    width: 100%;
    border-radius: 12px;
    object-fit: cover;
    aspect-ratio: 1;
}

.detail-title {
    font-family: var(--font-brand);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.375rem;
    line-height: 1.2;
}

.detail-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.875rem;
}

.detail-price {
    font-family: var(--font-brand);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.875rem;
}

.detail-description {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.size-selector { margin-bottom: 1.25rem; }

.size-selector label {
    display: block;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 0.625rem;
    color: var(--text-secondary);
}

.size-options {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
}

.size-option {
    min-width: 48px;
    height: 44px;
    padding: 0 0.75rem;
    border: 2px solid var(--border);
    background-color: var(--surface);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--t-fast);
    color: var(--text-secondary);
    position: relative;
}

.size-option:hover,
.size-option.selected {
    border-color: var(--accent);
    background-color: var(--accent-light);
    color: var(--accent);
}

.size-option.has-quantity::after {
    content: attr(data-quantity);
    position: absolute;
    top: -7px;
    right: -7px;
    background: var(--accent);
    color: #fff;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    font-weight: 700;
}

.detail-actions {
    display: flex;
    gap: 0.875rem;
}

.btn-primary,
.btn-secondary {
    flex: 1;
    padding: 0.875rem;
    border: none;
    border-radius: 10px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--t-fast);
}

.btn-primary {
    background-color: var(--accent);
    color: #fff;
}
.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background-color: var(--surface);
    color: var(--text-primary);
    border: 2px solid var(--border-strong);
}
.btn-secondary:hover {
    background-color: var(--text-primary);
    color: #fff;
    border-color: var(--text-primary);
}

/* ===================================
   SIZE GUIDE TABLE
   =================================== */
.size-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0.875rem;
    font-size: 0.875rem;
}

.size-table th,
.size-table td {
    padding: 0.625rem 0.75rem;
    text-align: center;
    border: 1px solid var(--border);
}

.size-table th {
    background-color: var(--accent);
    color: #fff;
    font-weight: 600;
    font-size: 0.8rem;
}

.size-table tr:nth-child(even) { background-color: var(--surface-alt); }
.size-table tr:hover { background-color: var(--accent-light); }

/* ===================================
   FORMS
   =================================== */
.contact-form,
.admin-form,
.customer-form {
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.875rem;
}

.form-group { display: flex; flex-direction: column; }

.form-group label {
    font-weight: 500;
    font-size: 0.875rem;
    margin-bottom: 0.375rem;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 0.7rem 0.875rem;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: var(--t-fast);
    color: var(--text-primary);
    background: var(--surface);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}

.form-group input:disabled {
    background: var(--surface-alt);
    cursor: not-allowed;
}

/* ===================================
   ABOUT CONTENT
   =================================== */
.about-content {
    line-height: 1.8;
    color: var(--text-secondary);
}
.about-content h3 {
    font-family: var(--font-brand);
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}
.about-content p { margin-bottom: 0.875rem; }

/* ===================================
   ACCOUNT GATEWAY
   =================================== */
.account-gateway {
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
    padding: 0.5rem 0;
}

.account-note,
.admin-note {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-style: italic;
    margin-top: 0.875rem;
}

/* ===================================
   CUSTOMER PROFILE
   =================================== */
.profile-container {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 1.75rem;
    min-height: 460px;
}

.profile-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.profile-info {
    text-align: center;
    padding: 1.25rem;
    background: var(--surface-alt);
    border-radius: 12px;
}

.profile-avatar { margin-bottom: 0.875rem; }

.profile-info h3 {
    font-family: var(--font-brand);
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.profile-nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.profile-nav-btn {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.75rem 0.875rem;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--t-fast);
    text-align: left;
}

.profile-nav-btn:hover {
    background: var(--surface-alt);
    border-color: var(--accent);
    color: var(--accent);
}

.profile-nav-btn.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.profile-nav-btn.logout-btn {
    margin-top: 0.875rem;
    border-color: var(--danger);
    color: var(--danger);
}
.profile-nav-btn.logout-btn:hover {
    background: var(--danger);
    color: #fff;
}

.profile-nav-btn i { width: 18px; text-align: center; }

.profile-content {
    background: var(--surface);
    border-radius: 12px;
    padding: 1.75rem;
    overflow-y: auto;
    max-height: 540px;
    border: 1px solid var(--border);
}

.profile-section {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.profile-section h3 {
    font-family: var(--font-brand);
    font-size: 1.4rem;
    color: var(--text-primary);
}

.profile-section h4 {
    font-family: var(--font-brand);
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-top: 1rem;
}

.profile-form {
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}

.profile-form label {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.profile-form input {
    padding: 0.7rem 0.875rem;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: var(--t-fast);
}

.profile-form input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}

.profile-form small {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Address Cards */
.address-card {
    padding: 1.25rem;
    background: var(--surface-alt);
    border-radius: 12px;
    border: 1px solid var(--border);
    margin-bottom: 0.875rem;
}

.address-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.625rem;
}

.address-card .badge {
    background: var(--accent);
    color: #fff;
    padding: 0.2rem 0.625rem;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
}

.address-card p {
    margin: 0.2rem 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Wishlist Grid */
.wishlist-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.25rem;
}

.wishlist-product-card {
    background: var(--surface-alt);
    border-radius: 12px;
    padding: 0.875rem;
    text-align: center;
    transition: transform var(--t-fast);
    border: 1px solid var(--border);
}
.wishlist-product-card:hover { transform: translateY(-4px); }

.wishlist-product-card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 0.875rem;
}

.wishlist-product-card h4 {
    font-family: var(--font-brand);
    font-size: 0.9rem;
    margin-bottom: 0.375rem;
}

.wishlist-product-card .price {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.875rem;
}

.btn-sm {
    padding: 0.4rem 0.875rem;
    font-size: 0.8rem;
}

/* Settings Section */
.settings-section {
    background: var(--surface-alt);
    padding: 1.25rem;
    border-radius: 12px;
    margin-bottom: 1.25rem;
}

/* ===================================
   SIZE SELECTION SUMMARY
   =================================== */
.size-selection-summary {
    background: var(--accent-light);
    border: 2px solid var(--accent);
    border-radius: 12px;
    padding: 0.875rem;
    margin: 0.875rem 0;
}

.selection-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-bottom: 0.375rem;
}

.selection-item {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.375rem 0.625rem;
    font-size: 0.85rem;
}

.selection-item-size { font-weight: 700; color: var(--text-primary); }
.selection-item-qty  { color: var(--accent); font-weight: 600; }

.selection-item-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    margin-left: 0.2rem;
    font-size: 0.9rem;
    transition: color var(--t-fast);
}
.selection-item-remove:hover { color: var(--danger); }

/* ===================================
   CART QUANTITY CONTROLS
   =================================== */
.cart-item-quantity-controls {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    margin: 0.375rem 0;
}

.qty-btn {
    width: 26px;
    height: 26px;
    border: 1px solid var(--border);
    background: var(--surface);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--t-fast);
    font-size: 0.8rem;
    color: var(--text-primary);
}
.qty-btn:hover { background: var(--surface-alt); border-color: var(--accent); color: var(--accent); }
.qty-btn:active { transform: scale(0.93); }
.qty-decrease:hover { background: var(--danger-light); border-color: var(--danger); color: var(--danger); }

.qty-display {
    min-width: 28px;
    text-align: center;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-primary);
}

/* ===================================
   TOAST
   =================================== */
.toast {
    position: fixed;
    bottom: 1.75rem;
    right: 1.75rem;
    background-color: var(--text-primary);
    color: #fff;
    padding: 0.875rem 1.25rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 0.625rem;
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    transform: translateY(150%);
    transition: transform var(--t-normal);
    font-size: 0.9rem;
    font-weight: 500;
    max-width: 320px;
}
.toast.show { transform: translateY(0); }
.toast i { color: var(--success); font-size: 1.1rem; }

/* ===================================
   SCROLLBARS
   =================================== */
.left-column::-webkit-scrollbar,
.right-column::-webkit-scrollbar,
.modal-content::-webkit-scrollbar {
    width: 6px;
}

.left-column::-webkit-scrollbar-track,
.right-column::-webkit-scrollbar-track,
.modal-content::-webkit-scrollbar-track {
    background: transparent;
}

.left-column::-webkit-scrollbar-thumb,
.right-column::-webkit-scrollbar-thumb,
.modal-content::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.15);
    border-radius: 4px;
}

.modal-content::-webkit-scrollbar-thumb {
    background: var(--border);
}

/* ===================================
   RESPONSIVE — Tablet
   =================================== */
@media (max-width: 1100px) {
    .main-container {
        grid-template-columns: 180px 1fr 168px;
    }
}

@media (max-width: 900px) {
    .main-container {
        grid-template-columns: 56px 1fr 56px;
    }

    .brand-name, .brand-tagline, .nav-title,
    .nav-link span, .filter-btn span, .info-links,
    .store-info, .customer-service span, .lang-toggle {
        display: none;
    }

    .brand-mark { margin: 0 auto; }
    .logo-section { padding-bottom: 0.75rem; }

    .nav-link { padding: 0.625rem; justify-content: center; }
    .nav-icon { margin: 0; }

    .filter-btn { justify-content: center; }
    .filter-btn i { margin: 0; }

    .service-btn { padding: 0.875rem 0.5rem; }
    .service-btn i { margin: 0; }

    .left-column,
    .right-column {
        padding: 1rem 0.5rem;
    }

    .product-details-grid { grid-template-columns: 1fr; }
}

/* ===================================
   RESPONSIVE — Mobile
   =================================== */
@media (max-width: 640px) {
    .main-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr auto auto;
    }

    .left-column,
    .right-column { display: none; }

    .center-content { padding: 0; }

    .hero-strip { padding: 0.75rem 1rem 0; }
    .hero-text  { display: none; }

    .card-container { max-width: 100%; padding: 0.5rem 0 0; }

    .card-controls {
        bottom: -4rem;
        gap: 0.875rem;
    }

    .control-btn { width: 48px; height: 48px; font-size: 1.1rem; }
    .cart-btn    { width: 58px; height: 58px; font-size: 1.3rem; }
    .swipe-hint  { bottom: -6.5rem; }

    .modal { width: 96%; max-height: 92vh; }
    .modal-content { padding: 1.25rem; }

    .product-details-grid { grid-template-columns: 1fr; }
    .profile-container    { grid-template-columns: 1fr; }
    .form-row             { grid-template-columns: 1fr; }
    .wishlist-grid        { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }

    /* Mobile bottom bar */
    .mobile-nav {
        display: flex;
        justify-content: space-around;
        background-color: var(--sidebar-bg);
        padding: 0.875rem;
        border-top: 1px solid var(--sidebar-border);
    }

    .mobile-nav-btn {
        background: none;
        border: none;
        color: var(--sidebar-text);
        font-size: 1.3rem;
        cursor: pointer;
        transition: var(--t-fast);
    }

    .mobile-nav-btn:hover { color: var(--accent); }
}

/* ===================================
   PRINT
   =================================== */
@media print {
    .left-column, .right-column, .card-controls,
    .swipe-hint, .main-footer { display: none; }
    .main-container { grid-template-columns: 1fr; }
}

/* ===================================
   DYNAMIC CATEGORY SYSTEM
   Sidebar accordion + Topbar dropdown
   =================================== */

/* ── Sidebar: parent row with expand button ── */
.nav-parent-row {
    display: flex;
    align-items: center;
}

.nav-parent-row .nav-link-parent {
    flex: 1;
    min-width: 0;
}

.nav-expand-btn {
    background: none;
    border: none;
    color: var(--sidebar-muted);
    cursor: pointer;
    padding: 0.4rem 0.5rem;
    border-radius: 6px;
    transition: color var(--t-fast), background var(--t-fast);
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.nav-expand-btn:hover {
    color: var(--sidebar-text);
    background: rgba(255,255,255,.07);
}

.nav-expand-btn i {
    font-size: 0.6rem;
    transition: transform var(--t-fast);
}

/* Expanded state — rotate chevron 90° */
.nav-item-expandable.expanded .nav-expand-btn i {
    transform: rotate(90deg);
}

/* ── Sidebar: subcategory list (accordion) ── */
.nav-sublist {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--t-slow);
}

.nav-item-expandable.expanded .nav-sublist {
    max-height: 600px;   /* large enough for any plausible list */
}

.nav-sublink {
    padding-left: 2.25rem !important;
    font-size: 0.82rem;
    opacity: 0.82;
}

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

/* ── Top-bar: chip wrapper (positions the dropdown) ── */
.chip-wrapper {
    position: relative;
    display: inline-flex;
    flex-shrink: 0;
}

/* Parent chip — shows caret */
.chip-parent {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.3rem 0.75rem;
    border-radius: 20px;
    border: 1.5px solid var(--border);
    background: var(--surface);
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--t-fast);
}

.chip-parent:hover,
.chip-wrapper.open .chip-parent {
    border-color: var(--accent);
    color: var(--accent);
}

.chip-parent.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.chip-caret {
    font-size: 0.6rem;
    transition: transform var(--t-fast);
}

.chip-wrapper.open .chip-caret {
    transform: rotate(180deg);
}

/* ── Topbar dropdown panel ── */
.chip-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 160px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow);
    z-index: 200;
    padding: 4px 0;
    overflow: hidden;
}

.chip-wrapper.open .chip-dropdown {
    display: block;
}

.chip-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.5rem 0.875rem;
    background: none;
    border: none;
    font-family: var(--font-body);
    font-size: 0.82rem;
    color: var(--text-secondary);
    cursor: pointer;
    text-align: left;
    transition: background var(--t-fast), color var(--t-fast);
}

.chip-dropdown-item:hover {
    background: var(--accent-light);
    color: var(--accent);
}

.chip-dropdown-item i {
    width: 14px;
    text-align: center;
    font-size: 0.75rem;
    opacity: 0.7;
}

/* ── Top-bar chip strip — scrollable ── */
.category-chips {
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    flex-wrap: nowrap;
    gap: 0.25rem;
}

.chip i, .chip-parent i {
    vertical-align: middle;
    font-size: 0.72rem;
}

.chip:focus-visible,
.chip-parent:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* ── Mobile: top-bar dropdown becomes vertical expand ── */
@media (max-width: 767px) {
    .chip-wrapper.open .chip-dropdown {
        position: static;
        box-shadow: none;
        border: none;
        border-top: 1px solid var(--border);
        border-radius: 0 0 8px 8px;
        padding: 2px 0;
        background: var(--surface-alt);
    }
    .chip-wrapper {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ===================================
   END DYNAMIC CATEGORIES
   =================================== */

/* ===================================
   PRODUCT CARD — MULTI-IMAGE GALLERY
   Up to 10 images, horizontal scroll,
   DOES NOT trigger the card-swipe gesture.
   =================================== */

/* The image container becomes a scroll track when multiple images exist */
.card-image-container.has-gallery {
    overflow: hidden;        /* clips scroll track */
    cursor: default;         /* prevent grab on the image area */
    touch-action: pan-x;     /* only horizontal pan, block vertical swipe */
}

/* Horizontal scrolling track — wraps all img slides */
.card-gallery-track {
    display: flex;
    width: 100%;
    height: 100%;
    overflow-x: scroll;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;   /* Firefox */
    /* stop touch events from bubbling up to the swipe handler */
    touch-action: pan-x;
}

.card-gallery-track::-webkit-scrollbar { display: none; }

/* Each slide */
.card-gallery-slide {
    flex: 0 0 100%;
    height: 100%;
    scroll-snap-align: start;
    overflow: hidden;
}

.card-gallery-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;    /* no drag-on-image triggers */
    user-select: none;
}

/* Dot indicator row */
.card-gallery-dots {
    position: absolute;
    bottom: 0.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.3rem;
    z-index: 5;
}

.card-gallery-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255,255,255,0.45);
    transition: background 0.2s, transform 0.2s;
    cursor: pointer;
    border: none;
    padding: 0;
}

.card-gallery-dot.active {
    background: #fff;
    transform: scale(1.35);
}

/* Prev / Next arrows (appear on hover on desktop) */
.card-gallery-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(4px);
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    font-size: 0.75rem;
    cursor: pointer;
    z-index: 6;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s;
}

.card-image-container.has-gallery:hover .card-gallery-btn { opacity: 1; }

.card-gallery-btn.prev { left: 0.4rem; }
.card-gallery-btn.next { right: 0.4rem; }

/* ===================================
   END MULTI-IMAGE GALLERY
   =================================== */