/* ============================================
   AS Cleaning Supply — Admin Dashboard CSS
   Premium white-background dashboard design
   ============================================ */

/* ---- Variables ---- */
:root {
    --admin-primary: #0072BC;
    --admin-primary-dark: #005A96;
    --admin-primary-light: #E8F4FD;
    --admin-green: #10B981;
    --admin-green-light: #ECFDF5;
    --admin-orange: #F59E0B;
    --admin-orange-light: #FFFBEB;
    --admin-red: #EF4444;
    --admin-red-light: #FEF2F2;
    --admin-purple: #8B5CF6;
    --admin-purple-light: #F5F3FF;
    --admin-bg: #F8FAFC;
    --admin-white: #FFFFFF;
    --admin-text: #1E293B;
    --admin-text-secondary: #64748B;
    --admin-border: #E2E8F0;
    --admin-sidebar: #0F172A;
    --admin-sidebar-hover: #1E293B;
    --admin-radius: 12px;
    --admin-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --admin-shadow-md: 0 4px 6px rgba(0,0,0,0.05), 0 2px 4px rgba(0,0,0,0.03);
    --admin-shadow-lg: 0 10px 25px rgba(0,0,0,0.08);
    --admin-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--admin-bg);
    color: var(--admin-text);
    min-height: 100vh;
}

/* ---- Layout ---- */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
    width: 260px;
    background: var(--admin-sidebar);
    color: #fff;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: var(--admin-transition);
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-header .sidebar-logo {
    height: 38px;
    filter: brightness(0) invert(1);
}

.sidebar-header .sidebar-title {
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1.3;
}

.sidebar-header .sidebar-subtitle {
    font-size: 0.68rem;
    color: rgba(255,255,255,0.5);
    font-weight: 400;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.sidebar-section-title {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: rgba(255,255,255,0.35);
    padding: 16px 12px 8px;
    font-weight: 600;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    border-radius: 8px;
    color: rgba(255,255,255,0.65);
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--admin-transition);
    cursor: pointer;
    margin-bottom: 2px;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    font-family: inherit;
}

.sidebar-link:hover {
    background: var(--admin-sidebar-hover);
    color: #fff;
}

.sidebar-link.active {
    background: var(--admin-primary);
    color: #fff;
    font-weight: 600;
}

.sidebar-link .link-icon {
    font-size: 1.15rem;
    width: 24px;
    text-align: center;
}

.sidebar-link .link-badge {
    margin-left: auto;
    background: var(--admin-red);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 50px;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-user .user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--admin-primary), #3399D6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
}

.sidebar-user .user-info {
    flex: 1;
}

.sidebar-user .user-name {
    font-size: 0.82rem;
    font-weight: 600;
}

.sidebar-user .user-role {
    font-size: 0.7rem;
    color: rgba(255,255,255,0.5);
}

/* ---- Main Content ---- */
.admin-main {
    flex: 1;
    margin-left: 260px;
    min-height: 100vh;
}

/* ---- Top Bar ---- */
.admin-topbar {
    background: var(--admin-white);
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--admin-border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.admin-topbar .topbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.admin-topbar .page-title {
    font-size: 1.2rem;
    font-weight: 700;
}

.admin-topbar .breadcrumb {
    font-size: 0.78rem;
    color: var(--admin-text-secondary);
}

.admin-topbar .breadcrumb a {
    color: var(--admin-primary);
    text-decoration: none;
}

.admin-topbar .topbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-btn {
    background: var(--admin-bg);
    border: 1px solid var(--admin-border);
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--admin-transition);
    cursor: pointer;
    font-size: 1.05rem;
    position: relative;
}

.topbar-btn:hover {
    background: var(--admin-primary-light);
    border-color: var(--admin-primary);
    color: var(--admin-primary);
}

.topbar-btn .notif-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background: var(--admin-red);
    border-radius: 50%;
    border: 2px solid var(--admin-white);
}

.store-link-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 9px 16px;
    background: var(--admin-primary);
    color: #fff;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    transition: var(--admin-transition);
    cursor: pointer;
    border: none;
    text-decoration: none;
    font-family: inherit;
}

.store-link-btn:hover {
    background: var(--admin-primary-dark);
    transform: translateY(-1px);
}

/* ---- Content Area ---- */
.admin-content {
    padding: 28px 32px;
}

/* ---- Dashboard Section ---- */
.dashboard-section { display: block; }
.products-section,
.inventory-section,
.stats-section,
.newsletter-admin-section { display: none; }

/* ---- KPI Cards ---- */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 28px;
}

.kpi-card {
    background: var(--admin-white);
    border-radius: var(--admin-radius);
    padding: 22px;
    box-shadow: var(--admin-shadow);
    border: 1px solid var(--admin-border);
    transition: var(--admin-transition);
    position: relative;
    overflow: hidden;
}

.kpi-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--admin-shadow-md);
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.kpi-card:nth-child(1)::before { background: var(--admin-primary); }
.kpi-card:nth-child(2)::before { background: var(--admin-green); }
.kpi-card:nth-child(3)::before { background: var(--admin-orange); }
.kpi-card:nth-child(4)::before { background: var(--admin-purple); }

.kpi-card .kpi-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 14px;
}

.kpi-card .kpi-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.kpi-card:nth-child(1) .kpi-icon { background: var(--admin-primary-light); color: var(--admin-primary); }
.kpi-card:nth-child(2) .kpi-icon { background: var(--admin-green-light); color: var(--admin-green); }
.kpi-card:nth-child(3) .kpi-icon { background: var(--admin-orange-light); color: var(--admin-orange); }
.kpi-card:nth-child(4) .kpi-icon { background: var(--admin-purple-light); color: var(--admin-purple); }

.kpi-card .kpi-change {
    font-size: 0.72rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 50px;
}

.kpi-change.positive {
    background: var(--admin-green-light);
    color: var(--admin-green);
}

.kpi-change.negative {
    background: var(--admin-red-light);
    color: var(--admin-red);
}

.kpi-card .kpi-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--admin-text);
    margin-bottom: 4px;
    line-height: 1;
}

.kpi-card .kpi-label {
    font-size: 0.78rem;
    color: var(--admin-text-secondary);
    font-weight: 500;
}

/* ---- Charts Grid ---- */
.charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    margin-bottom: 28px;
}

.chart-card {
    background: var(--admin-white);
    border-radius: var(--admin-radius);
    padding: 24px;
    box-shadow: var(--admin-shadow);
    border: 1px solid var(--admin-border);
}

.chart-card .chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.chart-card .chart-title {
    font-size: 1rem;
    font-weight: 700;
}

.chart-card .chart-filter {
    display: flex;
    gap: 4px;
    background: var(--admin-bg);
    border-radius: 8px;
    padding: 3px;
}

.chart-filter button {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: 600;
    background: none;
    border: none;
    color: var(--admin-text-secondary);
    cursor: pointer;
    transition: var(--admin-transition);
    font-family: inherit;
}

.chart-filter button.active {
    background: var(--admin-white);
    color: var(--admin-text);
    box-shadow: var(--admin-shadow);
}

.chart-canvas-container {
    position: relative;
    width: 100%;
    height: 280px;
}

.chart-canvas-container canvas {
    width: 100% !important;
    height: 100% !important;
}

/* ---- Activity Timeline ---- */
.activity-card {
    background: var(--admin-white);
    border-radius: var(--admin-radius);
    padding: 24px;
    box-shadow: var(--admin-shadow);
    border: 1px solid var(--admin-border);
}

.activity-card .activity-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.activity-item {
    display: flex;
    gap: 14px;
    padding: 12px 0;
    border-bottom: 1px solid var(--admin-border);
}

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

.activity-item .activity-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-top: 5px;
    flex-shrink: 0;
}

.activity-item .activity-text {
    font-size: 0.82rem;
    color: var(--admin-text);
    line-height: 1.4;
}

.activity-item .activity-time {
    font-size: 0.72rem;
    color: var(--admin-text-secondary);
    margin-top: 2px;
}

/* ---- Data Table ---- */
.table-card {
    background: var(--admin-white);
    border-radius: var(--admin-radius);
    box-shadow: var(--admin-shadow);
    border: 1px solid var(--admin-border);
    overflow: hidden;
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--admin-border);
}

.table-header h3 {
    font-size: 1rem;
    font-weight: 700;
}

.table-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.table-search {
    padding: 8px 14px;
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    font-size: 0.82rem;
    outline: none;
    transition: var(--admin-transition);
    font-family: inherit;
    width: 220px;
}

.table-search:focus {
    border-color: var(--admin-primary);
    box-shadow: 0 0 0 3px rgba(0,114,188,0.1);
}

.btn-add {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--admin-primary);
    color: #fff;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    transition: var(--admin-transition);
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.btn-add:hover {
    background: var(--admin-primary-dark);
    transform: translateY(-1px);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: var(--admin-bg);
}

.data-table th {
    padding: 12px 20px;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--admin-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--admin-border);
}

.data-table td {
    padding: 14px 20px;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--admin-border);
    vertical-align: middle;
}

.data-table tbody tr {
    transition: var(--admin-transition);
}

.data-table tbody tr:hover {
    background: var(--admin-bg);
}

.data-table .product-cell {
    display: flex;
    align-items: center;
    gap: 12px;
}

.data-table .product-thumb {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.data-table .product-name-cell {
    font-weight: 600;
    color: var(--admin-text);
}

.data-table .product-category-cell {
    font-size: 0.72rem;
    color: var(--admin-text-secondary);
}

/* Stock Badges */
.stock-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 600;
}

.stock-badge.high { background: var(--admin-green-light); color: var(--admin-green); }
.stock-badge.medium { background: var(--admin-orange-light); color: var(--admin-orange); }
.stock-badge.low { background: var(--admin-red-light); color: var(--admin-red); }

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 600;
}

.status-badge.active { background: var(--admin-green-light); color: var(--admin-green); }
.status-badge.inactive { background: var(--admin-red-light); color: var(--admin-red); }

.action-btns {
    display: flex;
    gap: 6px;
}

.action-btn {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--admin-border);
    background: var(--admin-white);
    cursor: pointer;
    transition: var(--admin-transition);
    font-size: 0.85rem;
}

.action-btn:hover {
    background: var(--admin-primary-light);
    border-color: var(--admin-primary);
    color: var(--admin-primary);
}

.action-btn.delete:hover {
    background: var(--admin-red-light);
    border-color: var(--admin-red);
    color: var(--admin-red);
}

/* ---- Modal ---- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--admin-transition);
    backdrop-filter: blur(4px);
}

.modal-overlay.open {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--admin-white);
    border-radius: 16px;
    width: 520px;
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--admin-shadow-lg);
    transform: scale(0.95);
    transition: var(--admin-transition);
}

.modal-overlay.open .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--admin-border);
}

.modal-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--admin-bg);
    border: none;
    cursor: pointer;
    transition: var(--admin-transition);
    font-size: 1rem;
}

.modal-close:hover {
    background: var(--admin-red-light);
    color: var(--admin-red);
}

.modal-body {
    padding: 24px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--admin-text);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    font-size: 0.85rem;
    font-family: inherit;
    outline: none;
    transition: var(--admin-transition);
    background: var(--admin-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--admin-primary);
    box-shadow: 0 0 0 3px rgba(0,114,188,0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 16px 24px;
    border-top: 1px solid var(--admin-border);
}

.btn-cancel {
    padding: 9px 18px;
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    background: var(--admin-white);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--admin-transition);
    font-family: inherit;
}

.btn-cancel:hover {
    background: var(--admin-bg);
}

.btn-save {
    padding: 9px 22px;
    background: var(--admin-primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--admin-transition);
    font-family: inherit;
}

.btn-save:hover {
    background: var(--admin-primary-dark);
}

/* ---- Inventory Grid ---- */
.inventory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.inventory-item {
    background: var(--admin-white);
    border-radius: var(--admin-radius);
    padding: 18px;
    box-shadow: var(--admin-shadow);
    border: 1px solid var(--admin-border);
    transition: var(--admin-transition);
}

.inventory-item:hover {
    box-shadow: var(--admin-shadow-md);
}

.inventory-item .inv-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.inventory-item .inv-icon {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

.inventory-item .inv-name {
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1.3;
}

.inventory-item .inv-category {
    font-size: 0.72rem;
    color: var(--admin-text-secondary);
}

.inventory-item .inv-stock-bar {
    width: 100%;
    height: 6px;
    background: var(--admin-bg);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 10px;
}

.inventory-item .inv-stock-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.6s ease;
}

.inventory-item .inv-stock-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.inventory-item .inv-stock-count {
    font-size: 0.82rem;
    font-weight: 700;
}

.inventory-item .inv-stock-input {
    display: flex;
    align-items: center;
    gap: 6px;
}

.inventory-item .inv-stock-input input {
    width: 60px;
    padding: 5px 8px;
    border: 1px solid var(--admin-border);
    border-radius: 6px;
    font-size: 0.8rem;
    text-align: center;
    outline: none;
    font-family: inherit;
}

.inventory-item .inv-stock-input input:focus {
    border-color: var(--admin-primary);
}

.inv-update-btn {
    padding: 5px 10px;
    background: var(--admin-primary);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--admin-transition);
    font-family: inherit;
}

.inv-update-btn:hover {
    background: var(--admin-primary-dark);
}

/* ---- Stats Section ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--admin-white);
    border-radius: var(--admin-radius);
    padding: 22px;
    box-shadow: var(--admin-shadow);
    border: 1px solid var(--admin-border);
    text-align: center;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--admin-primary);
}

.stat-card .stat-label {
    font-size: 0.78rem;
    color: var(--admin-text-secondary);
    margin-top: 4px;
}

/* ---- Newsletter Section ---- */
.newsletter-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 28px;
}

.export-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--admin-green);
    color: #fff;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    transition: var(--admin-transition);
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.export-btn:hover {
    background: #059669;
    transform: translateY(-1px);
}

/* ---- Admin Toast ---- */
.admin-toast {
    position: fixed;
    top: 24px;
    right: 24px;
    background: var(--admin-text);
    color: #fff;
    padding: 14px 22px;
    border-radius: 10px;
    box-shadow: var(--admin-shadow-lg);
    z-index: 9999;
    transform: translateX(120%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.admin-toast.show {
    transform: translateX(0);
}

.admin-toast.success { background: var(--admin-green); }
.admin-toast.error { background: var(--admin-red); }

/* ---- Mobile Sidebar Toggle ---- */
.mobile-sidebar-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    padding: 8px;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
    .charts-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .sidebar {
        left: -260px;
    }
    .sidebar.open {
        left: 0;
    }
    .admin-main {
        margin-left: 0;
    }
    .mobile-sidebar-btn {
        display: block;
    }
    .kpi-grid { grid-template-columns: 1fr; }
    .admin-content { padding: 20px 16px; }
    .admin-topbar { padding: 12px 16px; }
    .table-header { flex-direction: column; gap: 12px; align-items: stretch; }
    .table-actions { flex-direction: column; }
    .table-search { width: 100%; }
    .data-table { font-size: 0.8rem; }
    .data-table th, .data-table td { padding: 10px 12px; }
    .form-row { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr; }
    .newsletter-stats-grid { grid-template-columns: 1fr; }
    .inventory-grid { grid-template-columns: 1fr; }
}

/* ---- Sidebar Overlay (Mobile) ---- */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 99;
}

.sidebar-overlay.open {
    display: block;
}

/* ---- Admin Product & Inventory Thumbnails ---- */
.admin-product-thumb {
    width: 48px;
    height: 48px;
    object-fit: contain;
    background: #ffffff;
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    padding: 3px;
    flex-shrink: 0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.admin-inv-thumb {
    width: 52px;
    height: 52px;
    object-fit: contain;
    background: #ffffff;
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    padding: 4px;
    flex-shrink: 0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}