/* =====================================================
   Cefalon B2B - Stylesheet
   Light theme, responsive, clean
   ===================================================== */

:root {
    --c-primary: #2d6a4f;
    --c-primary-light: #40916c;
    --c-primary-dark: #1b4332;
    --c-secondary: #d4a373;
    --c-bg: #f8f9fa;
    --c-card: #ffffff;
    --c-text: #1a1a1a;
    --c-muted: #6c757d;
    --c-border: #dee2e6;
    --c-danger: #dc3545;
    --c-success: #28a745;
    --c-warning: #ffc107;
    --c-accent: #e9ecef;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
    --radius: 8px;
    --radius-sm: 4px;
    --max-width: 1280px;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

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

html { font-size: 16px; }

body {
    font-family: var(--font);
    background: var(--c-bg);
    color: var(--c-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1rem;
    width: 100%;
}

/* --- Top bar --- */
.topbar {
    background: var(--c-primary-dark);
    color: #fff;
    padding: 0.625rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.5px;
}
.logo span {
    background: var(--c-secondary);
    color: var(--c-primary-dark);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    margin-left: 4px;
    font-size: 0.9rem;
}
.logo:hover { text-decoration: none; }

.nav {
    display: flex;
    gap: 1.25rem;
    align-items: center;
}
.nav a {
    color: rgba(255,255,255,0.85);
    font-size: 0.95rem;
    font-weight: 500;
}
.nav a:hover { color: #fff; text-decoration: none; }
.nav .badge {
    background: var(--c-secondary);
    color: var(--c-primary-dark);
    padding: 1px 7px;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 700;
}
.nav-admin {
    background: rgba(255,255,255,0.15);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
}
.nav-logout { color: rgba(255,255,255,0.6); font-size: 0.9rem; }

/* --- Main --- */
main.container {
    flex: 1;
    padding: 1.5rem 1rem;
}

/* --- Cards & buttons --- */
.card {
    background: var(--c-card);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    max-width: 420px;
    width: 100%;
    text-align: center;
}

.center-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--c-primary-dark);
}

.btn {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
    font-family: var(--font);
}
.btn:hover { text-decoration: none; opacity: 0.9; }

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

.btn-secondary { background: var(--c-secondary); color: var(--c-primary-dark); }
.btn-danger { background: var(--c-danger); color: #fff; }
.btn-ghost { background: transparent; color: var(--c-text); border: 1px solid var(--c-border); }
.btn-ghost:hover { background: var(--c-accent); }

.btn-block { display: block; width: 100%; text-align: center; }
.btn-lg { padding: 0.75rem 1.5rem; font-size: 1.05rem; }
.btn-sm { padding: 0.3rem 0.7rem; font-size: 0.85rem; }

/* --- Login --- */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 120px);
    padding: 2rem 0;
}
.login-card {
    background: var(--c-card);
    padding: 2.5rem 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    max-width: 380px;
    width: 100%;
}
.login-card h1 {
    font-size: 1.6rem;
    color: var(--c-primary-dark);
    margin-bottom: 0.25rem;
}
.subtitle { color: var(--c-muted); margin-bottom: 1.5rem; }
.login-card form { display: flex; flex-direction: column; gap: 1rem; }
.login-card label { display: flex; flex-direction: column; gap: 0.35rem; }
.login-card label span { font-size: 0.9rem; font-weight: 600; color: var(--c-text); }
.input, .login-card input, .login-card select, .login-card textarea {
    padding: 0.625rem 0.75rem;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: var(--font);
    width: 100%;
    background: #fff;
}
.input:focus, input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px rgba(45,106,79,0.12);
}
.hint { color: var(--c-muted); font-size: 0.85rem; margin-top: 1rem; }

/* --- Flash messages --- */
.flash {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}
.flash-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.flash-error { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }

/* --- Catalog --- */
.catalog-header {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 1.25rem;
}
.catalog-header h1 { font-size: 1.5rem; }
.count { color: var(--c-muted); font-size: 0.9rem; }

.catalog-grid {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 1.5rem;
}

.filters {
    background: var(--c-card);
    padding: 1.25rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    height: fit-content;
    position: sticky;
    top: 70px;
}
.filter-group {
    margin-bottom: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}
.filter-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--c-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.filters form { display: flex; flex-direction: column; gap: 0.5rem; }

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}

.product-card-wrap {
    background: var(--c-card);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.15s, box-shadow 0.15s;
    display: flex;
    flex-direction: column;
}
.product-card-wrap:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
}

.product-card {
    display: flex;
    flex-direction: column;
    flex: 1;
    color: inherit;
}
.product-card:hover { text-decoration: none; }

.product-img {
    width: 100%;
    aspect-ratio: 3/4;
    overflow: hidden;
    background: var(--c-accent);
    display: flex;
    align-items: center;
    justify-content: center;
}
.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.no-image { color: var(--c-muted); font-size: 0.85rem; }

.product-info {
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}
.product-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--c-text);
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.product-sku { font-size: 0.8rem; color: var(--c-muted); }
.product-price {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--c-primary);
    margin-top: 0.25rem;
}
.tag {
    font-size: 0.75rem;
    background: var(--c-accent);
    padding: 2px 6px;
    border-radius: 3px;
    color: var(--c-muted);
    display: inline-block;
    width: fit-content;
}

/* --- Pagination --- */
.pagination {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}
.page-link {
    padding: 0.4rem 0.7rem;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--c-text);
    font-size: 0.9rem;
}
.page-link:hover { background: var(--c-accent); text-decoration: none; }
.page-link.active { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }

/* --- Product page --- */
/* overflow-wrap: anywhere — let long SKU-style tokens (e.g. STONE_44MATTAWLITESTNMV)
   break instead of widening the page on mobile */
.product-page { max-width: 960px; margin: 0 auto; overflow-wrap: anywhere; }
.product-top {
    display: grid;
    grid-template-columns: 360px minmax(0, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}
/* Grid items must be able to shrink below their min-content width,
   otherwise the 500px-wide matrix table widens the whole page on mobile. */
.product-top > * { min-width: 0; }
.product-gallery img.main-image {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.no-image-large {
    width: 100%;
    aspect-ratio: 3/4;
    background: var(--c-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    color: var(--c-muted);
}
.product-details h1 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.product-meta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: var(--c-muted);
    margin-bottom: 0.75rem;
}
.gender-tag {
    background: var(--c-accent);
    padding: 2px 8px;
    border-radius: 3px;
}
.product-price-big {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--c-primary);
    margin-bottom: 1rem;
}
.product-desc {
    color: var(--c-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

/* --- Matrix table --- */
.matrix-section { margin-top: 2rem; }
.matrix-section h2 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.matrix-hint { color: var(--c-muted); font-size: 0.9rem; margin-bottom: 1rem; }

.matrix-table-wrap {
    overflow-x: auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.matrix-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--c-card);
    min-width: 500px;
}
.matrix-table th {
    background: var(--c-primary);
    color: #fff;
    padding: 0.625rem 0.5rem;
    font-weight: 600;
    font-size: 0.85rem;
    text-align: center;
    position: sticky;
    top: 0;
}
.matrix-table th:first-child { text-align: left; }
.matrix-table td {
    padding: 0.5rem;
    border-bottom: 1px solid var(--c-border);
    text-align: center;
}
.matrix-table tbody tr:nth-child(even) { background: #f8f9fa; }
.color-cell {
    font-weight: 600;
    text-align: left;
    padding-left: 0.75rem;
    white-space: nowrap;
}
.qty-cell { min-width: 70px; }
.qty-input {
    width: 60px;
    padding: 0.35rem;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    text-align: center;
    font-size: 0.95rem;
    -moz-appearance: textfield;
}
.qty-input::-webkit-outer-spin-button,
.qty-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.qty-input:disabled { background: #f0f0f0; color: var(--c-muted); }
.stock-label {
    display: block;
    font-size: 0.72rem;
    color: var(--c-muted);
    margin-top: 2px;
}
.stock-label.in-stock { color: var(--c-success); }
.stock-label.no-stock { color: var(--c-danger); }
.row-total { font-weight: 700; color: var(--c-primary); }
.na { color: var(--c-muted); }

.matrix-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding: 1rem 0;
}
.grand-total { font-size: 1.15rem; font-weight: 700; }
.grand-total-value { color: var(--c-primary); }

/* --- Cart --- */
.cart-page { max-width: 960px; margin: 0 auto; }
.cart-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--c-card);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.cart-table th {
    background: var(--c-accent);
    padding: 0.75rem;
    text-align: left;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--c-muted);
    text-transform: uppercase;
}
.cart-table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--c-border);
    vertical-align: middle;
}
.cart-product { display: flex; align-items: center; gap: 0.75rem; }
.cart-thumb { width: 50px; height: 60px; object-fit: cover; border-radius: 4px; }
.cart-name { font-weight: 600; font-size: 0.9rem; }
.cart-sku { font-size: 0.8rem; color: var(--c-muted); }
.cart-qty { width: 60px; padding: 0.35rem; border: 1px solid var(--c-border); border-radius: 4px; text-align: center; }
.stock-mini { font-size: 0.72rem; color: var(--c-muted); }
.cart-line-total, .cart-total { font-weight: 700; text-align: right; }
.cart-total { font-size: 1.2rem; color: var(--c-primary); }
.text-right { text-align: right; }
.cart-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    margin-top: 1rem;
    flex-wrap: wrap;
}
.btn-icon {
    background: none;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    padding: 0 0.6rem;
    font-size: 1.2rem;
    color: var(--c-danger);
    cursor: pointer;
    line-height: 1.8;
}

/* --- Checkout --- */
.checkout-page { max-width: 960px; margin: 0 auto; }
.checkout-grid { display: grid; grid-template-columns: 1fr 320px; gap: 1.5rem; }
.summary-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--c-card);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.summary-table th { background: var(--c-accent); padding: 0.625rem; text-align: left; font-size: 0.85rem; }
.summary-table td { padding: 0.625rem; border-bottom: 1px solid var(--c-border); }
.summary-table tfoot td { font-weight: 700; background: var(--c-accent); }
.grand-total-cell { color: var(--c-primary); font-size: 1.1rem; }
.checkout-form {
    background: var(--c-card);
    padding: 1.25rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.checkout-form h2 { font-size: 1.1rem; margin-bottom: 0.75rem; }
.checkout-form textarea {
    width: 100%;
    padding: 0.625rem;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-family: var(--font);
    margin-bottom: 1rem;
    resize: vertical;
}

/* --- Success --- */
.success-page { text-align: center; padding: 2rem 0; }
.success-icon {
    font-size: 3rem;
    color: var(--c-success);
    margin-bottom: 1rem;
}
.success-subtitle { font-size: 1.1rem; margin-bottom: 0.5rem; }
.status {
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}
.status-new { background: #d1ecf1; color: #0c5460; }
.status-processing { background: #fff3cd; color: #856404; }
.status-shipped { background: #d4edda; color: #155724; }
.status-completed { background: #d4edda; color: #155724; }
.status-cancelled { background: #f8d7da; color: #721c24; }
.success-actions { display: flex; gap: 1rem; justify-content: center; margin-top: 2rem; }

/* --- Account --- */
.account-page { max-width: 960px; margin: 0 auto; }
.orders-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--c-card);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.orders-table th { background: var(--c-accent); padding: 0.625rem; text-align: left; font-size: 0.85rem; }
.orders-table td { padding: 0.625rem; border-bottom: 1px solid var(--c-border); }
.back-link { color: var(--c-muted); font-size: 0.9rem; }
.order-info-bar {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    background: var(--c-card);
    padding: 1rem;
    border-radius: var(--radius);
    margin: 1rem 0;
    box-shadow: var(--shadow);
}
.order-info-bar span { color: var(--c-muted); }
.order-comment {
    background: var(--c-card);
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    border-left: 4px solid var(--c-secondary);
}
.empty { text-align: center; padding: 3rem 1rem; color: var(--c-muted); }
.empty-cart { text-align: center; padding: 3rem 1rem; }

/* --- Admin --- */
.admin-page { max-width: 1280px; }
.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.stat-card {
    background: var(--c-card);
    padding: 1.25rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
}
.stat-card.highlight { border-left: 4px solid var(--c-danger); }
.stat-value { font-size: 1.8rem; font-weight: 800; color: var(--c-primary); }
.stat-label { font-size: 0.85rem; color: var(--c-muted); margin-top: 0.25rem; }

.admin-nav { display: flex; gap: 0.75rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.admin-nav-btn {
    background: var(--c-card);
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    color: var(--c-text);
    font-weight: 600;
}
.admin-nav-btn:hover { background: var(--c-primary); color: #fff; text-decoration: none; }

.admin-table, .summary-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--c-card);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.admin-table th { background: var(--c-accent); padding: 0.625rem; text-align: left; font-size: 0.85rem; }
.admin-table td { padding: 0.625rem; border-bottom: 1px solid var(--c-border); vertical-align: middle; }
.admin-thumb { width: 40px; height: 50px; object-fit: cover; border-radius: 4px; }
.no-image-sm { color: var(--c-muted); }
.actions { display: flex; gap: 0.25rem; flex-wrap: wrap; }

.product-form { display: flex; flex-direction: column; gap: 1rem; max-width: 700px; }
.product-form label { display: flex; flex-direction: column; gap: 0.35rem; }
.product-form label span { font-size: 0.85rem; font-weight: 600; }
.product-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.product-form input, .product-form select, .product-form textarea {
    padding: 0.625rem 0.75rem;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: var(--font);
}

.variant-form .form-row { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.variant-form input { flex: 1; min-width: 120px; padding: 0.5rem; border: 1px solid var(--c-border); border-radius: 4px; }

.status-form { display: flex; gap: 0.5rem; align-items: center; margin: 1rem 0; }
.status-form select { padding: 0.4rem; border: 1px solid var(--c-border); border-radius: 4px; }

.import-form { display: flex; flex-direction: column; gap: 1rem; max-width: 500px; margin-bottom: 2rem; }
.import-form label { display: flex; flex-direction: column; gap: 0.35rem; }
.import-form label span { font-size: 0.85rem; font-weight: 600; }
.import-result { background: var(--c-card); padding: 1.25rem; border-radius: var(--radius); margin-bottom: 1.5rem; box-shadow: var(--shadow); }
.import-stats { display: flex; gap: 1.5rem; margin: 1rem 0; flex-wrap: wrap; }
.import-stat { display: flex; flex-direction: column; align-items: center; }
.import-stat .num { font-size: 1.6rem; font-weight: 800; color: var(--c-primary); }
.import-errors { background: #f8d7da; padding: 1rem; border-radius: var(--radius-sm); margin-top: 1rem; }
.import-errors ul { margin-left: 1.5rem; }
.import-help { background: var(--c-card); padding: 1.25rem; border-radius: var(--radius); box-shadow: var(--shadow); }
.import-help pre { background: var(--c-accent); padding: 0.75rem; border-radius: var(--radius-sm); overflow-x: auto; margin-top: 0.5rem; font-size: 0.85rem; }
.import-help code { background: var(--c-accent); padding: 2px 6px; border-radius: 3px; }

.add-user summary { cursor: pointer; }
.user-form { margin: 1rem 0; display: flex; flex-direction: column; gap: 0.75rem; }
.user-form .form-row { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.user-form input, .user-form select { flex: 1; min-width: 120px; padding: 0.5rem; border: 1px solid var(--c-border); border-radius: 4px; }

.role-badge { padding: 2px 8px; border-radius: 10px; font-size: 0.8rem; }
.role-admin { background: #d4edda; color: #155724; }
.role-buyer { background: var(--c-accent); color: var(--c-muted); }

.muted { color: var(--c-muted); }

/* --- Promo banner --- */
.promo-banner {
    background: linear-gradient(90deg, var(--c-secondary), #e8b88f);
    color: var(--c-primary-dark);
    text-align: center;
    padding: 0.5rem 1rem;
    font-weight: 600;
    font-size: 0.9rem;
}

/* --- Chat widget (floating, expandable) --- */
.chat-widget {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 300;
}

.chat-toggle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border: none;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(102,126,234,0.4);
    transition: transform 0.25s, box-shadow 0.25s;
    position: relative;
}
.chat-toggle:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 20px rgba(102,126,234,0.5);
}
.chat-toggle.active {
    transform: rotate(135deg);
    background: linear-gradient(135deg, #e74c3c, #c0392b);
}
.chat-toggle .chat-icon-close { display: none; }
.chat-toggle.active .chat-icon-open { display: none; }
.chat-toggle.active .chat-icon-close { display: block !important; }

.chat-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #e74c3c;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #fff;
    animation: pulse-badge 2s infinite;
}
@keyframes pulse-badge {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

.chat-popup {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 300px;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
    overflow: hidden;
    animation: popup-in 0.25s ease;
}
@keyframes popup-in {
    from { opacity: 0; transform: translateY(12px) scale(0.96); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.chat-popup-header {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    padding: 0.875rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    font-size: 0.95rem;
}
.chat-close {
    background: none;
    border: none;
    color: #fff;
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
    padding: 0 0 0 0.5rem;
    opacity: 0.8;
}
.chat-close:hover { opacity: 1; }

.chat-popup-body {
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.chat-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: 10px;
    text-decoration: none;
    color: #333;
    transition: background 0.15s;
}
.chat-option:hover {
    background: #f0f0f5;
    text-decoration: none;
}
.chat-option-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.chat-option-text {
    display: flex;
    flex-direction: column;
    gap: 1px;
}
.chat-option-title {
    font-weight: 600;
    font-size: 0.9rem;
}
.chat-option-desc {
    font-size: 0.78rem;
    color: #888;
}

@media (max-width: 480px) {
    .chat-popup { width: 260px; }
    .chat-toggle { width: 50px; height: 50px; }
}

/* --- Quick-add on catalog cards --- */
.product-card { text-decoration: none; color: inherit; display: flex; flex-direction: column; }
.quick-add {
    padding: 0.5rem 0.75rem;
    border-top: 1px solid var(--c-border);
    display: flex;
    gap: 0.4rem;
    align-items: center;
    flex-wrap: wrap;
}
.quick-add select {
    flex: 1;
    min-width: 60px;
    padding: 0.3rem;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    font-size: 0.8rem;
    background: #fff;
}
.quick-add .qa-qty {
    width: 45px;
    padding: 0.3rem;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    text-align: center;
    font-size: 0.85rem;
    -moz-appearance: textfield;
}
.quick-add .qa-qty::-webkit-outer-spin-button,
.quick-add .qa-qty::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.quick-add .qa-btn {
    background: var(--c-primary);
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 0.35rem 0.6rem;
    font-size: 0.8rem;
    cursor: pointer;
    white-space: nowrap;
    font-weight: 600;
}
.quick-add .qa-btn:hover { background: var(--c-primary-light); }
.quick-add .qa-btn:disabled { background: var(--c-muted); cursor: not-allowed; }
.price-on-order {
    color: var(--c-warning);
    font-size: 0.8rem;
    font-weight: 600;
}

/* --- Product gallery --- */
.gallery-main {
    width: 100%;
    aspect-ratio: 3/4;
    overflow: hidden;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    background: var(--c-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
}
.gallery-main img { width: 100%; height: 100%; object-fit: cover; cursor: zoom-in; }
.gallery-thumbs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 0.25rem;
    scrollbar-width: thin;
}
.gallery-thumb {
    flex: 0 0 64px;
    width: 64px;
    height: 80px;
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    background: var(--c-accent);
}
.gallery-thumb.active { border-color: var(--c-primary); }
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }

/* --- Min order warning --- */
.min-order-warning {
    background: #fff3cd;
    border: 1px solid #ffc107;
    color: #856404;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}
.checkout-blocked {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
    padding: 1rem;
    border-radius: var(--radius-sm);
    text-align: center;
}

/* --- Admin settings --- */
.settings-form { display: flex; flex-direction: column; gap: 1rem; max-width: 600px; }
.settings-form .form-group { display: flex; flex-direction: column; gap: 0.3rem; }
.settings-form label { font-size: 0.85rem; font-weight: 600; color: var(--c-text); }
.settings-form input, .settings-form select, .settings-form textarea {
    padding: 0.5rem;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    font-size: 0.95rem;
}
.settings-form .hint-text { font-size: 0.8rem; color: var(--c-muted); }
.settings-form .checkbox-row { display: flex; align-items: center; gap: 0.5rem; }

/* --- Admin image management --- */
.image-manager { margin-top: 1.5rem; }
.image-grid { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.image-item {
    position: relative;
    width: 100px;
    height: 125px;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 2px solid transparent;
}
.image-item.is-main { border-color: var(--c-primary); }
.image-item img { width: 100%; height: 100%; object-fit: cover; }
.image-item .img-actions {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    background: rgba(0,0,0,0.6);
    justify-content: center;
    gap: 0.25rem;
    padding: 2px;
}
.image-item .img-actions button, .image-item .img-actions a {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 0.75rem;
    padding: 2px 6px;
    border-radius: 2px;
    text-decoration: none;
}
.image-item .img-actions .del { color: #ff6b6b; }
.image-item .main-badge {
    position: absolute;
    top: 2px;
    left: 2px;
    background: var(--c-primary);
    color: #fff;
    font-size: 0.65rem;
    padding: 1px 5px;
    border-radius: 2px;
}
.upload-form { margin-bottom: 1rem; display: flex; gap: 0.5rem; align-items: center; }

/* --- Footer --- */
.footer {
    background: var(--c-primary-dark);
    color: rgba(255,255,255,0.7);
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 2rem;
}
.footer p { font-size: 0.85rem; }

/* --- Responsive --- */
@media (max-width: 900px) {
    .catalog-grid { grid-template-columns: 1fr; }
    .filters { position: static; }
    .product-top { grid-template-columns: minmax(0, 1fr); }
    .checkout-grid { grid-template-columns: 1fr; }
    .product-form .form-row { grid-template-columns: 1fr; }
    .nav { gap: 0.75rem; }
    .nav a { font-size: 0.85rem; }
}
@media (max-width: 600px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .topbar-inner { flex-direction: column; gap: 0.5rem; }
    .nav { flex-wrap: wrap; justify-content: center; }
    .cart-table, .summary-table, .admin-table { font-size: 0.85rem; }
    .cart-table th, .cart-table td { padding: 0.5rem 0.35rem; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* --- Product tabs and description --- */
.product-tabs { display:flex; gap:0; margin-top:1.25rem; border-bottom:1px solid var(--c-border); overflow-x:auto; }
.product-tab { flex:0 0 auto; border:0; border-bottom:2px solid transparent; background:transparent; color:var(--c-muted); padding:.7rem 1rem; font:inherit; font-weight:600; cursor:pointer; }
.product-tab:hover, .product-tab.active { color:var(--c-primary); }
.product-tab.active { border-bottom-color:var(--c-primary); }
.product-tab-panel { display:none; padding-top:1rem; color:var(--c-text); }
.product-tab-panel.active { display:block; }
.product-tab-panel .matrix-table-wrap { margin-top:.5rem; box-shadow:none; }
.product-tab-panel h2 { font-size:1.1rem; margin-bottom:.25rem; }
.product-description-bottom { margin-top:2rem; padding:1.5rem; background:var(--c-card); border-radius:var(--radius); box-shadow:var(--shadow); scroll-margin-top:80px; }
.product-description-bottom h2 { font-size:1.35rem; margin-bottom:.75rem; }
.product-description-bottom div, .product-tab-panel { white-space:normal; }
.gallery-thumb { border:2px solid transparent; padding:0; }

/* --- Hamburger menu (mobile) --- */
.nav-toggle {
    display: none;
    background: none;
    border: 0;
    padding: 0.5rem;
    margin: -0.5rem;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    flex-shrink: 0;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2.5px;
    border-radius: 2px;
    background: #fff;
    transition: transform .25s ease, opacity .2s ease;
}
@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .topbar-inner { flex-direction: row; align-items: center; }
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        flex-wrap: nowrap;
        gap: 0;
        background: var(--c-primary-dark);
        padding: 0.25rem 1rem 0.5rem;
        border-top: 1px solid rgba(255,255,255,0.12);
        box-shadow: 0 10px 20px rgba(0,0,0,0.3);
        max-height: calc(100vh - 60px);
        overflow-y: auto;
    }
    .topbar.nav-open .nav { display: flex; }
    .nav a {
        padding: 0.75rem 0.5rem;
        font-size: 1rem;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .nav a:last-child { border-bottom: 0; }
    .nav .nav-admin { background: none; padding: 0.75rem 0.5rem; border-radius: 0; }
    .topbar.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
    .topbar.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
    .topbar.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

    /* Wide data tables: scroll inside their own box instead of
       widening the whole page (cart/orders/checkout/admin on phones) */
    .cart-table, .orders-table, .summary-table, .admin-table {
        display: block;
        overflow-x: auto;
    }
}

/* --- Product page: touch-friendly variant list (mobile) --- */
.variant-picker { display: none; }
.variant-group {
    background: var(--c-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 0.75rem;
}
.variant-group-title {
    background: var(--c-primary);
    color: #fff;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.55rem 0.85rem;
}
.variant-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.55rem 0.85rem;
    border-bottom: 1px solid var(--c-border);
}
.variant-row:last-child { border-bottom: 0; }
.vr-size { font-weight: 700; min-width: 3em; }
.vr-stock { flex: 1; font-size: 0.8rem; color: var(--c-muted); }
.vr-stock.in-stock { color: var(--c-success); }
.vr-stock.no-stock { color: var(--c-danger); }
.vr-qty { display: flex; align-items: center; }
.qty-step {
    width: 38px;
    height: 38px;
    border: 1px solid var(--c-border);
    background: #fff;
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    color: var(--c-text);
    font-family: var(--font);
}
.qty-step:first-child { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.qty-step:last-child { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.qty-step:disabled { color: #c8c8c8; background: #f3f3f3; cursor: not-allowed; }
.vr-input {
    width: 52px;
    height: 38px;
    border: 1px solid var(--c-border);
    border-left: 0;
    border-right: 0;
    text-align: center;
    font-size: 1rem;
    font-family: var(--font);
    -moz-appearance: textfield;
}
.vr-input::-webkit-outer-spin-button,
.vr-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.vr-input:disabled { background: #f3f3f3; color: var(--c-muted); }
.matrix-footer { flex-wrap: wrap; gap: 0.75rem; }
@media (max-width: 768px) {
    .matrix-table-wrap { display: none; }
    .variant-picker { display: block; }
}

/* --- Catalog: searchable category picker --- */
.cat-picker { display: flex; flex-direction: column; gap: 0.35rem; }
.cat-picker .cat-search { width: 100%; }
.cat-list {
    max-height: 230px;
    overflow-y: auto;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    background: #fff;
    scrollbar-width: thin;
}
.cat-option {
    display: block;
    width: 100%;
    text-align: left;
    padding: 0.45rem 0.65rem;
    border: 0;
    background: none;
    font-size: 0.9rem;
    color: var(--c-text);
    cursor: pointer;
    font-family: var(--font);
    line-height: 1.35;
}
.cat-option:hover { background: var(--c-accent); }
.cat-option.active { background: var(--c-primary); color: #fff; font-weight: 600; }

/* --- Catalog: filters collapsible on mobile --- */
.filters-toggle { display: none; }
@media (max-width: 768px) {
    .filters { background: none; padding: 0; box-shadow: none; }
    .filters-toggle {
        display: flex;
        width: 100%;
        justify-content: space-between;
        align-items: center;
        background: var(--c-card);
        border: 0;
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        padding: 0.85rem 1.15rem;
        font-size: 1rem;
        font-weight: 600;
        color: var(--c-text);
        cursor: pointer;
        font-family: var(--font);
        margin-bottom: 0.75rem;
    }
    .filters-toggle-caret { transition: transform .2s; font-size: 1.1rem; }
    .filters.open .filters-toggle-caret { transform: rotate(180deg); }
    .filters form { display: none; }
    .filters.open form {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
        background: var(--c-card);
        padding: 1.25rem;
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        margin-bottom: 1rem;
    }
    .filters.open .cat-list { max-height: 200px; }
}

/* --- Admin: category tree manager --- */
#cm-csrf { display: none; }
.cm-tree, .cm-tree ul { list-style: none; margin: 0; padding: 0; }
.cm-tree ul { padding-left: 1.5rem; }
.cm-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--c-card);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.6rem;
    margin: 0.3rem 0;
}
.cm-handle {
    cursor: grab;
    color: var(--c-muted);
    font-size: 1.05rem;
    touch-action: none;
    user-select: none;
    padding: 0 0.25rem;
}
.cm-handle:active { cursor: grabbing; }
.cm-name { font-weight: 600; }
.cm-meta { color: var(--c-muted); font-size: 0.8rem; flex: 1; }
.cm-actions { display: flex; gap: 0.25rem; }
.cm-btn {
    background: none;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    width: 28px;
    height: 28px;
    cursor: pointer;
    color: var(--c-text);
    line-height: 1;
    font-size: 0.95rem;
}
.cm-btn:hover { background: var(--c-accent); }
.cm-btn-danger { color: var(--c-danger); }
.cm-dragging { opacity: 0.45; pointer-events: none; }
body.cm-drag-active { cursor: grabbing; user-select: none; }
.cm-row.cm-drop-before { box-shadow: 0 -3px 0 0 var(--c-primary); }
.cm-row.cm-drop-after { box-shadow: 0 3px 0 0 var(--c-primary); }
.cm-row.cm-drop-inside { background: rgba(45,106,79,0.08); outline: 2px dashed var(--c-primary); }
.cm-edit { display: inline-flex; gap: 0.35rem; align-items: center; margin-left: auto; }
.cm-edit-input {
    padding: 0.3rem 0.5rem;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    min-width: 200px;
    font-family: var(--font);
}
.cm-confirm-text { color: var(--c-danger); font-size: 0.85rem; }
.cm-search-hidden { display: none !important; }
.cm-empty { padding: 1rem; }
.cat-manager-toolbar { display: flex; gap: 0.5rem; margin-bottom: 0.75rem; flex-wrap: wrap; }
.cat-manager-toolbar .input { flex: 1; min-width: 200px; max-width: 380px; }
@media (max-width: 600px) {
    .cm-meta { display: none; }
    .cm-edit { margin-left: 0; flex-wrap: wrap; }
    .cm-edit-input { min-width: 140px; }
}

/* --- Admin: product form category picker --- */
.cat-picker-admin { position: relative; }
.cpa-current {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    text-align: left;
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    padding: 0.625rem 0.75rem;
    font-size: 1rem;
    cursor: pointer;
    font-family: var(--font);
    color: var(--c-text);
}
.cpa-caret { color: var(--c-muted); }
.cpa-dropdown {
    position: absolute;
    z-index: 50;
    left: 0;
    right: 0;
    top: calc(100% + 4px);
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 0.6rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.cpa-tree {
    max-height: 260px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    scrollbar-width: thin;
}
.cpa-option {
    text-align: left;
    border: 0;
    background: none;
    padding: 0.45rem 0.65rem;
    font-size: 0.9rem;
    cursor: pointer;
    border-radius: 4px;
    color: var(--c-text);
    font-family: var(--font);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.cpa-option:hover { background: var(--c-accent); }
.cpa-option.active { background: var(--c-primary); color: #fff; font-weight: 600; }
.cpa-quickadd { display: flex; gap: 0.4rem; border-top: 1px solid var(--c-border); padding-top: 0.5rem; }
.cpa-quickadd .input { flex: 1; }