/* ====================================
   CS Inventory - Modern CSS Styles
   ==================================== */

/* CSS Variables - Design System (Dashboard dark mode for all modules) */
:root {
    /* Dashboard dark mode – used across all modules */
    --color-bg: #1a1e29;
    --color-surface: #222632;
    --color-surface-elevated: #2a2f3d;
    --color-border: #4b5563;
    --color-text: #ffffff;
    --color-text-muted: #94a3b8;
    --color-text-subtle: #64748b;

    /* Brand Colors (dashboard-aligned) */
    --color-primary: #3b82f6;
    --color-primary-hover: #2563eb;
    --color-primary-light: rgba(59, 130, 246, 0.15);

    /* Status Colors */
    --color-success: #10b981;
    --color-success-light: rgba(16, 185, 129, 0.1);
    --color-warning: #f59e0b;
    --color-warning-light: rgba(245, 158, 11, 0.15);
    --color-danger: #ef4444;
    --color-danger-light: rgba(239, 68, 68, 0.15);
    --color-info: #3b82f6;
    --color-info-light: rgba(59, 130, 246, 0.15);

    /* Aliases for dashboard/super_admin (same palette for all modules) */
    --bg-body: var(--color-bg);
    --bg-card: var(--color-surface);
    --bg-input: var(--color-surface-elevated);
    --border-color: var(--color-border);
    --text-primary: var(--color-text);
    --text-secondary: var(--color-text-muted);
    --text-placeholder: var(--color-text-subtle);
    --primary-color: var(--color-primary);
    --success-color: var(--color-success);
    --danger-color: var(--color-danger);
    --success-bg: var(--color-success-light);
    --success-text: #34d399;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);

    /* Overlay (modals, sidebar backdrop) */
    --color-overlay: rgba(0, 0, 0, 0.7);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-base: 0.2s ease;

    /* Font - WowDash-style (Poppins) */
    --font-sans: 'Poppins', system-ui, -apple-system, sans-serif;
    --font-mono: ui-monospace, 'Cascadia Code', 'JetBrains Mono', monospace;
}

/* Light Mode Overrides */
[data-theme="light"] {
    --color-bg: #f3f4f6;
    --color-surface: #ffffff;
    --color-surface-elevated: #ffffff;
    --color-border: #e5e7eb;
    --color-text: #1f2937;
    --color-text-muted: #6b7280;
    --color-text-subtle: #9ca3af;

    --color-primary-light: rgba(59, 130, 246, 0.1);
    --color-overlay: rgba(0, 0, 0, 0.5);

    /* Dashboard/super_admin light aliases */
    --bg-body: #f3f4f6;
    --bg-card: #ffffff;
    --bg-input: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #111827;
    --text-secondary: #64748b;
    --text-placeholder: #9ca3af;
    --success-bg: #dcfce7;
    --success-text: #166534;
    --primary-color: var(--color-primary);
    --success-color: var(--color-success);
    --danger-color: var(--color-danger);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 0 15px rgba(59, 130, 246, 0.2);
}

/* Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-weight: 400;
    letter-spacing: 0.01em;
    background: var(--color-bg);
    color: var(--color-text);
    padding-left: env(safe-area-inset-left, 0);
    padding-right: env(safe-area-inset-right, 0);
    padding-bottom: env(safe-area-inset-bottom, 0);
    line-height: 1.6;
    min-height: 100vh;
    padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-surface);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}


/* Typography - WowDash-style */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.35;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 2rem;
    font-weight: 700;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.25rem;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-hover);
}

code {
    font-family: var(--font-mono);
    background: var(--color-surface-elevated);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-size: 0.875em;
}

/* ====================================
   Navigation Bar
   ==================================== */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.navbar-brand .brand-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-text);
}

.brand-icon {
    font-size: 1.5rem;
}

.navbar-menu {
    display: flex;
    gap: var(--spacing-sm);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-text);
    background: var(--color-surface-elevated);
}

.nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.navbar-end {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-name {
    color: var(--color-text-muted);
}

.logout-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-surface-elevated);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
}

.logout-btn:hover {
    color: var(--color-danger);
    background: var(--color-danger-light);
}

/* Navigation Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    z-index: 1000;
    margin-top: var(--spacing-xs);
}

.nav-dropdown:hover .nav-dropdown-content {
    display: block;
}

.nav-dropdown-content a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.nav-dropdown-content a:hover {
    background: var(--color-surface-elevated);
    color: var(--color-text);
}

/* ====================================
   Main Content
   ==================================== */
.main-content {
    padding: var(--spacing-xl);
    padding-bottom: calc(var(--spacing-xl) + env(safe-area-inset-bottom, 0));
    max-width: 1400px;
    margin: 0 auto;
    min-width: 0;
    width: 100%;
}

/* Focus visible for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}
button:focus:not(:focus-visible),
a:focus:not(:focus-visible) {
    outline: none;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
}

.page-header h1 {
    margin: 0;
}

.page-header .subtitle {
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

/* Report Page (Low Stock, Customer Outstanding, Inventory, etc.) */
.report-page {
    padding: var(--spacing-md);
}

.report-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.report-header-left {
    flex: 1;
    min-width: 0;
}

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

.report-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin: 0;
    color: var(--color-text);
}

.report-subtitle {
    color: var(--color-text-muted);
    margin: 0.25rem 0 0;
    font-size: 0.9rem;
}

.report-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.report-stat-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-left-width: 4px;
    border-left-color: var(--color-border);
}

.report-stat-card .stat-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.report-stat-card .stat-icon-lg {
    font-size: 1.5rem;
    line-height: 1;
}

.report-stat-card .stat-value-lg {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.2;
}

.report-stat-card .stat-label-lg {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: 0.125rem;
}

.report-stat-card .stat-badge {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-sm);
}

.report-stat-card .stat-badge.warning {
    background: var(--color-warning-light);
    color: var(--color-warning);
}

.report-stat-card .stat-badge.stat-badge-danger {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

.report-stat-card.report-stat-danger {
    border-left-color: var(--color-border);
}

.report-stat-card.report-stat-danger.has-alert {
    border-left-color: var(--color-danger);
}

.report-stat-card.report-stat-low {
    border-left-color: var(--color-border);
}

.report-stat-card.report-stat-low.has-alert {
    border-left-color: var(--color-warning);
}

.sales-table-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
}

.sales-table-card .table-header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-surface-elevated);
    border-bottom: 1px solid var(--color-border);
}

.sales-table-card .table-header-bar h2 {
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
    color: var(--color-text);
}

.sales-table-card .result-count {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.sales-table-card .result-count.warning {
    color: var(--color-warning);
}

.sales-table-card .result-count.result-count-danger {
    color: var(--color-danger);
}

.sales-table-card.sales-table-card-danger {
    border-left: 4px solid var(--color-danger);
}

.sales-table-card.sales-table-card-warning {
    border-left: 4px solid var(--color-warning);
}

.sales-table .row-danger {
    background: var(--color-danger-light);
}

.sales-table-card .table-responsive {
    overflow-x: auto;
}

.sales-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.sales-table th {
    text-align: left;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-surface-elevated);
    font-weight: 600;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-border);
}

.sales-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
    color: var(--color-text);
}

.sales-table tbody tr:hover {
    background: var(--color-surface-elevated);
}

.sales-table .product-cell {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sales-table .product-icon {
    font-size: 1.125rem;
    flex-shrink: 0;
}

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

.sales-table .sku-badge {
    font-size: 0.75rem;
    padding: 0.125rem 0.375rem;
    background: var(--color-surface-elevated);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
}

.sales-table .stock-badge {
    font-size: 0.8125rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
}

.sales-table .stock-badge.danger {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

.sales-table .row-warning {
    background: var(--color-warning-light);
}

.sales-table .text-right {
    text-align: right;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.action-btn.primary-btn {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.action-btn.primary-btn:hover {
    background: var(--color-primary-hover);
    color: white;
}

.action-btn.secondary-btn {
    background: var(--color-surface-elevated);
    color: var(--color-text);
    border-color: var(--color-border);
}

.action-btn.secondary-btn:hover {
    background: var(--color-surface-elevated);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.text-danger {
    color: var(--color-danger);
}

.text-warning {
    color: var(--color-warning);
}

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

.report-empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
}

.report-empty-state .stat-icon-lg {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    line-height: 1;
}

.report-empty-state h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0 0 var(--spacing-sm);
    color: var(--color-text);
}

.report-empty-state p {
    margin: 0 0 var(--spacing-md);
    font-size: 0.9375rem;
}

.report-empty-state .action-btn {
    margin-top: var(--spacing-sm);
}

@media (max-width: 768px) {
    .report-header {
        flex-direction: column;
        align-items: stretch;
    }
    .report-header-right {
        justify-content: flex-start;
    }
    .report-stats {
        grid-template-columns: 1fr;
    }
}

.page-header-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* ====================================
   Cards
   ==================================== */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.card-header h2 {
    font-size: 1.125rem;
    margin: 0;
}

.card-body {
    padding: var(--spacing-lg);
}

/* ====================================
   Statistics Grid
   ==================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.stat-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface-elevated);
    border-radius: var(--radius-lg);
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
}

.stat-label {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.stat-card.stat-primary .stat-icon {
    background: var(--color-primary-light);
}

.stat-card.stat-success .stat-icon {
    background: var(--color-success-light);
}

.stat-card.stat-warning .stat-icon {
    background: var(--color-warning-light);
}

.stat-card.stat-info .stat-icon {
    background: var(--color-info-light);
}

/* ====================================
   Data Tables
   ==================================== */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.data-table th {
    font-weight: 600;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-table tbody tr:hover {
    background: var(--color-surface-elevated);
}

.data-table-compact th,
.data-table-compact td {
    padding: var(--spacing-xs) var(--spacing-sm);
}

.row-warning {
    background: var(--color-warning-light) !important;
}

.row-danger {
    background: var(--color-danger-light) !important;
}

/* ====================================
   Buttons - WowDash / Bootstrap 5 style
   ==================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.5rem 1rem;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.5;
    border: 1px solid transparent;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* Primary */
.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    box-shadow: var(--shadow-glow);
}

/* Secondary - surface/muted */
.btn-secondary {
    background: var(--color-surface-elevated);
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-border);
    border-color: var(--color-text-muted);
    color: var(--color-text);
}

.btn-success {
    background: var(--color-success);
    color: #fff;
    border-color: var(--color-success);
}

.btn-success:hover:not(:disabled) {
    filter: brightness(1.08);
}

.btn-warning {
    background: var(--color-warning);
    color: #111;
    border-color: var(--color-warning);
}

.btn-warning:hover:not(:disabled) {
    filter: brightness(1.08);
}

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

.btn-danger:hover:not(:disabled) {
    filter: brightness(1.08);
}

/* Ghost - no border, transparent bg */
.btn-ghost {
    background: transparent;
    color: var(--color-text-muted);
    border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
    color: var(--color-text);
    background: var(--color-surface-elevated);
}

/* Outline - transparent with border */
.btn-outline {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text);
}

.btn-outline:hover:not(:disabled) {
    background: var(--color-surface-elevated);
}

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

.btn-outline-primary:hover:not(:disabled) {
    background: var(--color-primary-light);
}

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

.btn-outline-secondary:hover:not(:disabled) {
    background: var(--color-surface-elevated);
    color: var(--color-text);
}

/* Sizes */
.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.8125rem;
    border-radius: 0.375rem;
}

.btn-lg {
    padding: 0.625rem 1.25rem;
    font-size: 1rem;
    border-radius: 0.5rem;
}

.btn-block {
    width: 100%;
}

.btn-group {
    display: inline-flex;
    gap: var(--spacing-xs);
}

/* ====================================
   Forms
   ==================================== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--color-text);
}

.form-input,
.form-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-input::placeholder {
    color: var(--color-text-subtle);
}

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

.form-help {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.form-group-full {
    grid-column: span 2;
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.form-inline {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* ====================================
   Badges
   ==================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.125rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-success {
    background: var(--color-success-light);
    color: var(--color-success);
}

.badge-warning {
    background: var(--color-warning-light);
    color: var(--color-warning);
}

.badge-danger {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

.badge-info {
    background: var(--color-info-light);
    color: var(--color-info);
}

/* ====================================
   Alerts & Flash Messages
   ==================================== */
.flash-message {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
}

.flash-icon {
    font-size: 1.25rem;
}

.flash-text {
    flex: 1;
}

.flash-close {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.flash-success {
    background: var(--color-success-light);
    border-color: var(--color-success);
}

.flash-error {
    background: var(--color-danger-light, rgba(220, 38, 38, 0.15));
    border-color: var(--color-danger, #dc2626);
    border-left: 4px solid var(--color-danger, #dc2626);
}
.flash-error .flash-text {
    color: var(--color-danger, #dc2626);
    font-weight: 600;
}

.flash-warning {
    background: var(--color-warning-light);
    border-color: var(--color-warning);
}

.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-md);
}

.alert-warning {
    background: var(--color-warning-light);
    border: 1px solid var(--color-warning);
}

.alert-icon {
    font-size: 1.25rem;
}

.alert-link {
    color: var(--color-warning);
    font-weight: 500;
}

/* ====================================
   Empty States
   ==================================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.empty-state h3 {
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

.empty-state-sm {
    padding: var(--spacing-lg);
}

.empty-state-sm .empty-icon {
    font-size: 2rem;
}

.empty-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
}

/* ====================================
   Quick Actions
   ==================================== */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
}

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--color-surface-elevated);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    text-align: center;
}

.quick-action-btn:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
}

.quick-action-icon {
    font-size: 2rem;
}

.quick-action-text {
    font-weight: 500;
    color: var(--color-text);
}

/* ====================================
   Grids
   ==================================== */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 768px) {

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }
}

/* ====================================
   Login Page
   ==================================== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--color-bg);
    background-image: linear-gradient(135deg, var(--color-bg) 0%, var(--color-surface) 100%);
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: var(--spacing-xl);
}

.login-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-header .brand-logo {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.login-header h1 {
    margin-bottom: var(--spacing-xs);
}

.login-header p {
    color: var(--color-text-muted);
}

.login-form .form-group {
    margin-bottom: var(--spacing-lg);
}

/* ====================================
   POS Interface
   ==================================== */
.pos-page .main-content {
    padding: 0;
    max-width: none;
}

/* Full-screen POS (no sidebar, no app chrome) */
.pos-fullscreen {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    overflow: hidden;
    width: 100%;
}

.pos-app-wrap {
    display: flex;
    flex-direction: column;
    height: 100vh;
    min-height: 0;
    min-width: 0;
    width: 100%;
    overflow: hidden;
    background: var(--color-bg);
}

/* Top-tier POS: minimal top bar – compact for more content */
.pos-top-bar {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.4rem var(--spacing-md);
    padding-top: calc(0.4rem + env(safe-area-inset-top, 0));
    padding-left: calc(var(--spacing-md) + env(safe-area-inset-left, 0));
    padding-right: calc(var(--spacing-md) + env(safe-area-inset-right, 0));
    background: var(--color-surface-elevated);
    border-bottom: 1px solid var(--color-border);
    min-height: 44px;
}

.pos-back-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
    transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

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

.pos-top-bar-title {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.pos-top-bar-spacer {
    flex: 1;
}

.pos-content {
    flex: 1 1 0;
    min-height: 0;
    min-width: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    width: 100%;
}

.pos-content .pos-container {
    flex: 1;
    min-height: 0;
    height: 100%;
}

.pos-container {
    display: grid;
    grid-template-columns: 1fr 520px;
    height: 100%;
    min-height: 0;
    min-width: 0;
    width: 100%;
    overflow: hidden;
}

.pos-fullscreen .pos-container {
    height: 100%;
    min-height: 0;
}

.pos-main {
    display: flex;
    flex-direction: column;
    min-height: 0;
    min-width: 0;
    background: var(--color-bg);
    overflow: hidden;
}

/* Products area: minimal search row – more space for product grid */
.pos-header {
    flex-shrink: 0;
    padding: 0.35rem var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface);
}

.pos-search-wrap {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0 0.5rem;
    min-height: 36px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.pos-search-wrap:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-light);
}

.pos-search-icon {
    font-size: 0.875rem;
    opacity: 0.65;
    flex-shrink: 0;
}

.pos-search-input {
    flex: 1;
    min-width: 0;
    padding: 0.3rem 0;
    font-size: 0.875rem;
    font-weight: 500;
    background: transparent;
    border: none;
    color: var(--color-text);
    transition: none;
}

.pos-search-input::placeholder {
    color: var(--color-text-subtle);
}

.pos-search-input:focus {
    outline: none;
    box-shadow: none;
}

.pos-section-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-muted);
    margin: 0;
    letter-spacing: 0.02em;
    text-transform: none;
}

.pos-products-title {
    flex-shrink: 0;
}

.pos-products {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-sm);
    -webkit-overflow-scrolling: touch;
}

.pos-products-count {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    flex-shrink: 0;
}

.pos-instructions {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 140px;
    color: var(--color-text-muted);
    font-size: 0.8125rem;
}

.pos-instructions .instruction-icon {
    font-size: 2.5rem;
    margin-bottom: 0.25rem;
    opacity: 0.75;
}

.pos-instructions p {
    margin: 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 0.6rem;
    padding-bottom: var(--spacing-sm);
}

/* Full-screen POS: more products visible (denser grid) */
.pos-fullscreen .product-grid {
    grid-template-columns: repeat(auto-fill, minmax(95px, 1fr));
    gap: 0.5rem;
    padding-bottom: var(--spacing-sm);
}

.pos-fullscreen .product-card {
    padding: var(--spacing-xs) var(--spacing-sm);
}

.pos-fullscreen .product-card-name {
    font-size: 0.8125rem;
    line-height: 1.25;
}

.pos-fullscreen .product-card-price {
    font-size: 0.9375rem;
}

.pos-fullscreen .product-card-placeholder {
    font-size: 1.5rem;
}

.product-card {
    position: relative;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    cursor: pointer;
    transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.product-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.product-card:active {
    transform: translateY(0);
}

.product-card.out-of-stock {
    opacity: 0.5;
    cursor: not-allowed;
}

/* "Already added" highlight: shown for any product that exists in the cart.
   Especially useful in POS edit mode where the cart is pre-loaded from a
   saved sale, so the cashier can instantly tell which grid items are part
   of the bill they're editing. */
.product-card.in-cart {
    border-color: var(--color-primary);
    background: color-mix(in srgb, var(--color-primary) 10%, var(--color-surface));
    box-shadow: 0 0 0 1px var(--color-primary) inset;
}

.product-card.in-cart:hover {
    background: color-mix(in srgb, var(--color-primary) 16%, var(--color-surface));
}

.product-card-cart-badge {
    position: absolute;
    top: 6px;
    right: 6px;
    z-index: 2;
    min-width: 26px;
    padding: 2px 8px;
    font-size: 0.75rem;
    font-weight: 700;
    line-height: 1.2;
    color: #fff;
    background: var(--color-primary);
    border-radius: 999px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.18);
    pointer-events: none;
}

.product-card-visual {
    width: 100%;
    aspect-ratio: 1;
    background: var(--color-surface-elevated);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-card-placeholder {
    font-size: 2rem;
}

.product-card-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.product-card-name {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    line-height: 1.2;
}

.product-card-sku {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.product-card-barcode {
    font-size: 0.70rem;
    color: var(--color-text-subtle);
    font-family: var(--font-mono);
}

.product-card-price {
    font-size: 1.0625rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-top: 2px;
    letter-spacing: -0.02em;
}

.product-card-stock {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* POS Cart: clear separation from products; footer always visible */
.pos-cart {
    display: flex;
    flex-direction: column;
    min-height: 0;
    min-width: 0;
    max-width: 100%;
    background: var(--color-surface);
    border-left: 2px solid var(--color-border);
    overflow: hidden;
    box-shadow: -4px 0 16px rgba(0, 0, 0, 0.1);
}

.pos-cart-inner {
    display: flex;
    flex-direction: column;
    min-height: 0;
    flex: 1;
    overflow: hidden;
}

.cart-section {
    display: flex;
    flex-direction: column;
    min-height: 0;
    flex: 1;
    overflow: hidden;
}

.cart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 2px solid var(--color-border);
    flex-shrink: 0;
    background: var(--color-surface-elevated);
}

.pos-cart .pos-section-title {
    font-size: 0.8125rem;
}

.cart-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text);
}

.cart-title-text {
    letter-spacing: -0.02em;
}

.cart-count-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.5rem;
    height: 1.5rem;
    padding: 0 0.35rem;
    font-size: 0.8125rem;
    font-weight: 700;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
}

.btn-clear-cart {
    font-size: 0.8125rem;
    padding: var(--spacing-xs) var(--spacing-sm);
}

.cart-header .pos-section-title,
.customer-section .pos-section-title {
    font-size: 0.875rem;
    margin: 0;
}

.cart-header h2 {
    font-size: 1.125rem;
    margin: 0;
}

/* Cart list: scrollable middle; min-height so at least one full item visible */
.cart-items {
    flex: 1 1 0;
    min-height: 120px;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-bottom: var(--spacing-lg);
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
}

.cart-items::-webkit-scrollbar {
    width: 8px;
}

.cart-items::-webkit-scrollbar-track {
    background: var(--color-surface-elevated);
    border-radius: var(--radius-full);
}

.cart-items::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-full);
}

.cart-items::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}

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

.cart-item {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-surface-elevated);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    border: 1px solid var(--color-border);
    flex-shrink: 0;
    min-height: 64px;
}

.cart-item-info {
    flex: 1 1 0;
    min-width: 0;
}

.cart-item-name {
    font-weight: 600;
    font-size: 0.9375rem;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.cart-item-price {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: 2px;
}

/* Editable price row inside each cart item */
.cart-item-price-row {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 4px;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.cart-price-label {
    font-weight: 600;
    color: var(--color-text-muted);
    font-size: 0.8125rem;
    flex-shrink: 0;
}

.cart-price-input {
    width: 64px;
    min-width: 0;
    padding: 2px 6px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text);
    background: var(--color-surface-elevated, #f3f4f6);
    border: 1px solid var(--color-border, #e5e7eb);
    border-radius: var(--radius-sm, 6px);
    text-align: center;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    -moz-appearance: textfield;
}

.cart-price-input::-webkit-outer-spin-button,
.cart-price-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.cart-price-input:hover {
    border-color: var(--color-text-muted, #9ca3af);
    background: var(--color-surface, #ffffff);
}

.cart-price-input:focus {
    outline: none;
    border-color: var(--color-primary, #3b82f6);
    background: var(--color-surface, #ffffff);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
    transform: translateY(-1px);
}

/* Highlight when price has been edited from original */
.cart-price-input.is-price-edited {
    color: var(--color-warning, #d97706);
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.4);
}

.cart-price-input.is-price-edited:focus {
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
    border-color: var(--color-warning, #f59e0b);
}

.cart-price-times {
    color: var(--color-text-muted);
    font-size: 0.75rem;
    font-weight: 500;
    flex-shrink: 0;
}

.cart-price-qty {
    font-weight: 600;
    color: var(--color-text-muted);
    font-size: 0.8125rem;
    flex-shrink: 0;
    background: var(--color-surface-elevated, #f3f4f6);
    padding: 2px 6px;
    border-radius: var(--radius-sm, 6px);
    border: 1px solid transparent;
}

.cart-price-reset {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.25rem;
    height: 1.25rem;
    margin-left: 4px;
    padding: 0;
    font-size: 0.8rem;
    line-height: 1;
    color: var(--color-text-muted);
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.cart-price-reset:hover {
    color: var(--color-warning, #d97706);
    background: rgba(245, 158, 11, 0.15);
    transform: rotate(-45deg);
}

.cart-item-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
    flex-wrap: nowrap;
}

.cart-item-qty {
    display: flex;
    align-items: center;
    gap: 2px;
    flex-shrink: 0;
}

.cart-qty-btn,
.cart-item-qty button {
    width: 32px;
    height: 32px;
    min-width: 32px;
    min-height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--color-text);
    font-size: 1.125rem;
    font-weight: 600;
    padding: 0;
    flex-shrink: 0;
}

.cart-qty-btn:hover,
.cart-item-qty button:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.cart-qty-input,
.cart-item-qty input {
    width: 44px;
    min-width: 44px;
    text-align: center;
    padding: var(--spacing-xs);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 0.9375rem;
    font-weight: 600;
    flex-shrink: 0;
}

.cart-item-total {
    font-weight: 600;
    min-width: 64px;
    text-align: right;
    flex-shrink: 0;
}

.cart-item-remove {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
    padding: 0;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    color: var(--color-danger);
    cursor: pointer;
    font-size: 1rem;
    flex-shrink: 0;
    transition: background var(--transition-fast), border-color var(--transition-fast);
}

.cart-item-remove:hover {
    background: var(--color-danger-light);
    border-color: var(--color-danger);
}

.cart-summary {
    flex-shrink: 0;
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 2px solid var(--color-border);
    background: var(--color-surface-elevated);
}

.pos-cart .cart-summary .summary-row {
    margin-bottom: 0.2rem;
}
.pos-cart .cart-summary .summary-total {
    margin-top: 0.35rem;
    padding-top: 0.35rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
    align-items: center;
    font-size: 0.875rem;
}

.summary-discount .discount-input {
    width: 80px;
    padding: var(--spacing-xs) var(--spacing-sm);
    text-align: right;
    font-size: 0.875rem;
}

.summary-total {
    font-size: 1.375rem;
    font-weight: 800;
    padding-top: var(--spacing-sm);
    border-top: 2px solid var(--color-border);
    margin-top: var(--spacing-xs);
    margin-bottom: 0;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.pos-sale-date-row {
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 1px solid var(--color-border);
    background: var(--color-surface);
}

.pos-sale-date-label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 0.2rem;
}

.pos-sale-date-hint {
    margin: 0 0 var(--spacing-xs) 0;
    font-size: 0.6875rem;
    color: var(--color-text-subtle);
    line-height: 1.35;
}

.pos-sale-date-row .dmy-date-field {
    max-width: 100%;
}

.pos-sale-date-row .dmy-date-field-inner {
    width: 100%;
    max-width: 17rem;
}

.cart-payment {
    flex-shrink: 0;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-bottom: max(var(--spacing-md), env(safe-area-inset-bottom, 0));
    border-top: 2px solid var(--color-border);
    background: var(--color-surface);
    min-width: 0;
    overflow-x: hidden;
}

/* Payment single row: all controls aligned, small button */
.payment-single-row {
    --payment-control-height: 2rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.payment-type-wrap {
    flex: 0 0 auto;
    min-width: 160px;
    max-width: 220px;
}

/* POS UPI bank dropdown: slightly narrower so row stays compact */
.payment-single-row #pos-bank-wrap {
    min-width: 140px;
    max-width: 200px;
}
.payment-type-label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 0.15rem;
}
.payment-type-select {
    width: 100%;
    height: var(--payment-control-height);
    padding: 0 1.75rem 0 0.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    line-height: 1;
    color: var(--color-text);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.35rem center;
    background-size: 0.75rem;
}
.payment-type-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
}

.gst-toggle-wrap {
    flex-shrink: 0;
    height: var(--payment-control-height);
    display: flex;
    align-items: center;
}
.gst-toggle-wrap .gst-toggle-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
}
.gst-toggle-wrap .gst-toggle-label input {
    width: 0.875rem;
    height: 0.875rem;
    cursor: pointer;
}

.amount-paid-wrap {
    flex: 1;
    min-width: 140px;
    max-width: 280px;
}
.amount-paid-label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--color-text-muted);
    margin: 0 0 0.15rem 0;
}
.amount-paid-wrap .amount-paid-input,
.payment-single-row .amount-paid-input {
    width: 100%;
    height: var(--payment-control-height);
    min-width: 0;
    padding: 0 0.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    box-sizing: border-box;
    line-height: 1;
}

.payment-single-row .complete-sale-btn {
    flex-shrink: 0;
    white-space: nowrap;
    height: var(--payment-control-height);
    margin: 0;
    line-height: 1;
}

.cart-payment .change-display {
    margin-top: 0.25rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-success);
}

/* POS notes: compact, no extra header spacing */
.pos-notes-row {
    padding: 0.5rem var(--spacing-md);
    border-top: 1px solid var(--color-border);
    background: var(--color-surface);
}
.pos-notes-row textarea.form-input {
    min-height: 2.5rem;
    resize: vertical;
}

/* POS Complete Sale – small button, aligned with row */
.complete-sale-btn {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0 0.6rem;
    margin-top: 0;
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px rgba(34, 197, 94, 0.3);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
    background: linear-gradient(180deg, var(--color-success, #22c55e) 0%, #16a34a 100%);
    border: none;
    color: white;
    min-width: 88px;
}

.complete-sale-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.45);
    background: linear-gradient(180deg, #22c55e 0%, #15803d 100%);
}

.complete-sale-btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    box-shadow: none;
}

/* ====================================
   Modal
   ==================================== */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: var(--color-overlay);
}

.modal-content {
    position: relative;
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-lg);
}

/* ====================================
   Receipt
   ==================================== */
.receipt-page {
    max-width: 400px;
    margin: 0 auto;
    padding: var(--spacing-xl);
}

.receipt {
    background: var(--color-surface);
    color: var(--color-text);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.receipt-header {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.receipt-header h1 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.receipt-divider {
    border-top: 1px dashed var(--color-border);
    margin: var(--spacing-md) 0;
}

.receipt-info p {
    margin-bottom: var(--spacing-xs);
}

.receipt-items {
    width: 100%;
    margin-bottom: var(--spacing-md);
}

.receipt-items th,
.receipt-items td {
    padding: var(--spacing-xs);
    text-align: left;
}

.receipt-items th {
    border-bottom: 1px solid var(--color-border);
}

.receipt-totals {
    margin: var(--spacing-md) 0;
}

.receipt-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
}

.receipt-total {
    font-size: 1.125rem;
    font-weight: 700;
    padding-top: var(--spacing-sm);
    border-top: 2px solid var(--color-text);
    margin-top: var(--spacing-sm);
}

.receipt-footer {
    text-align: center;
    margin-top: var(--spacing-md);
}

.receipt-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-xl);
}

/* Print Styles */
@media print {
    body * {
        visibility: hidden;
    }

    .receipt,
    .receipt * {
        visibility: visible;
    }

    .receipt {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
    }

    .receipt-actions {
        display: none;
    }
}

/* ====================================
   Utilities
   ==================================== */
.text-muted {
    color: var(--color-text-muted);
}

.text-success {
    color: var(--color-success);
}

.text-warning {
    color: var(--color-warning);
}

.text-danger {
    color: var(--color-danger);
}

.text-sm {
    font-size: 0.875rem;
}

.text-xs {
    font-size: 0.75rem;
}

/* ====================================
   Responsive
   ==================================== */
/* Short viewport (e.g. 13.6" MacBook Air 1440x900): compact cart so button visible */
@media (max-height: 900px) {
    .customer-section {
        padding: var(--spacing-xs) var(--spacing-md);
    }
    .cart-header {
        padding: var(--spacing-xs) var(--spacing-md);
    }
    .cart-summary {
        padding: var(--spacing-xs) var(--spacing-md);
    }
    .cart-payment {
        padding: var(--spacing-xs) var(--spacing-md);
    }
    .complete-sale-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 1.0625rem;
    }
}

/* Full-screen POS: wider cart (desktop only; overridden in 1024px for stack) */
@media (min-width: 1025px) {
    .pos-fullscreen .pos-container {
        grid-template-columns: 1fr minmax(440px, 540px);
    }
}

/* 13.6" MacBook Air / small laptops: cart still wide */
@media (max-width: 1440px) and (min-width: 1025px) {
    .pos-container {
        grid-template-columns: 1fr minmax(400px, 480px);
        height: calc(100vh - 52px);
    }
    .pos-fullscreen .pos-container {
        grid-template-columns: 1fr minmax(400px, 500px);
    }
}

@media (max-width: 1400px) and (min-width: 1025px) {
    .pos-container {
        grid-template-columns: 1fr minmax(380px, 460px);
    }
}

/* 13" laptop (1280px–1024px): narrower cart so products get more space */
@media (max-width: 1280px) and (min-width: 1025px) {
    .pos-container {
        grid-template-columns: 1fr minmax(320px, 400px);
    }
    .pos-fullscreen .pos-container {
        grid-template-columns: 1fr minmax(340px, 420px);
    }
    .pos-fullscreen .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
}

@media (max-width: 1200px) and (min-width: 1025px) {
    .pos-fullscreen .pos-container {
        grid-template-columns: 1fr minmax(320px, 400px);
    }
    .pos-fullscreen .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
}

/* Tablet / small laptop: stack products above cart; cart has fixed min height so button visible */
@media (max-width: 1024px) {
    .pos-container,
    .pos-fullscreen .pos-container {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr minmax(280px, 48vh);
        height: calc(100vh - 52px);
    }

    .pos-cart {
        min-height: 280px;
        border-left: none;
        border-top: 2px solid var(--color-border);
        box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.1);
    }

    .pos-main {
        min-height: 0;
    }

    .pos-fullscreen .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(95px, 1fr));
        gap: 0.5rem;
    }

    /* Cart items scroll; summary + payment + button stay visible */
    .cart-items {
        min-height: 0;
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }

    .navbar-menu {
        order: 3;
        width: 100%;
        overflow-x: auto;
    }

    .main-content {
        padding: var(--spacing-md);
    }

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

    .form-group-full {
        grid-column: span 1;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
}

/* ====================================
   Receipt (Enhanced) - theme-aware; print overrides below
   ==================================== */
.receipt {
    background: var(--color-surface);
    color: var(--color-text);
    padding: var(--spacing-lg);
    width: 100%;
    max-width: 380px;
    box-shadow: var(--shadow-md);
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.85rem;
    line-height: 1.4;
    margin: 0 auto;
}

.receipt-header h1 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.receipt-items th {
    text-align: left;
    border-bottom: 2px solid var(--color-text);
    padding: 4px 0;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75rem;
}

.receipt-total {
    font-size: 1.1rem;
    font-weight: 800;
    border-top: 2px solid var(--color-text);
    border-bottom: 2px double var(--color-text);
    padding: 8px 0;
    margin: 8px 0;
}

/* Print Styles (Modal Fix) */
@media print {
    body * {
        visibility: hidden;
    }

    .modal.active {
        position: fixed;
        inset: 0;
        z-index: 9999;
        display: flex !important;
        justify-content: center;
        align-items: flex-start;
        background: white;
        visibility: visible !important;
        padding-top: 0;
    }

    .modal-overlay,
    .modal-actions,
    .flash-message {
        display: none !important;
    }

    .modal-content {
        position: static;
        box-shadow: none;
        border: none;
        padding: 0;
        margin: 0;
        width: 100%;
        max-width: 100%;
        height: auto;
        overflow: visible;
        visibility: visible !important;
    }

    .receipt,
    .receipt * {
        visibility: visible !important;
        box-shadow: none;
    }

    .receipt {
        width: 100%;
        max-width: 100%;
        padding: 0;
        margin: 0;
        background: #fff !important;
        color: #000 !important;
    }
    .receipt-items th,
    .receipt-total { border-color: #000 !important; }
}

/* ====================================
   POS Customer Section (Compact)
   ==================================== */
.customer-section {
    padding: var(--spacing-xs) var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface-elevated);
    flex-shrink: 0;
}

.customer-section .pos-section-title {
    margin-bottom: 0.25rem;
    font-size: 0.8125rem;
}

.customer-search-wrapper {
    display: flex;
    gap: var(--spacing-xs);
    position: relative;
}

.customer-search-input {
    flex: 1;
    padding: 0.4rem var(--spacing-sm);
    font-size: 0.875rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.customer-search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.customer-search-input::placeholder {
    color: var(--color-text-subtle);
}

.btn-add-customer {
    width: 36px;
    height: 36px;
    padding: 0;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.btn-add-customer:hover {
    background: var(--color-primary-hover);
    transform: scale(1.05);
}

.customer-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 44px;
    background: var(--color-surface);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 100;
    max-height: 280px;
    overflow-y: auto;
    margin-top: var(--spacing-xs);
}

.customer-results-header {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-surface-elevated);
    color: var(--color-text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-border);
}

.customer-result-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    border-bottom: 1px solid var(--color-border);
}

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

.customer-result-item:hover {
    background: var(--color-primary-light);
}

.customer-result-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface-elevated);
    border-radius: var(--radius-full);
    font-size: 1.25rem;
}

.customer-result-info {
    flex: 1;
    min-width: 0;
}

.customer-result-name {
    font-weight: 600;
    margin-bottom: 2px;
}

.customer-result-phone {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.customer-no-results {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    color: var(--color-text-muted);
}

.customer-no-results .btn {
    margin-left: var(--spacing-sm);
}

/* Selected Customer Display */
.selected-customer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-success-light);
    border: 1px solid var(--color-success);
    border-radius: var(--radius-md);
}

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

.customer-icon {
    font-size: 1.5rem;
}

.customer-details {
    display: flex;
    flex-direction: column;
}

.customer-name {
    font-weight: 600;
}

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

.btn-remove-customer {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 1.25rem;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.btn-remove-customer:hover {
    color: var(--color-danger);
    background: var(--color-danger-light);
}

/* Customer Modal Improvements */
#customer-modal .modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

#customer-modal .modal-header h3 {
    margin: 0;
    font-size: 1.25rem;
}

#customer-modal .close-btn {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

#customer-modal .close-btn:hover {
    color: var(--color-text);
}

#customer-modal .modal-body .form-group {
    margin-bottom: var(--spacing-md);
}

#customer-modal .modal-body label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    font-size: 0.9rem;
}

#customer-modal .form-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
}

/* Field Validation Feedback */
.field-feedback {
    font-size: 0.8rem;
    margin-top: var(--spacing-xs);
    min-height: 1.25rem;
}

.field-feedback-success {
    color: var(--color-success);
}

.field-feedback-error {
    color: var(--color-danger);
}

.field-feedback strong {
    font-weight: 600;
}

/* ====================================
   Pagination Component
   ==================================== */
.pagination-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    margin-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.pagination {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.pagination-btn:hover:not(.disabled) {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

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

.pagination-pages {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.pagination-page {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--color-text);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.pagination-page:hover:not(.active) {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
}

.pagination-page.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    cursor: default;
}

.pagination-ellipsis {
    color: var(--color-text-muted);
    padding: 0 var(--spacing-xs);
}

@media (max-width: 768px) {
    .pagination-wrapper {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .pagination-pages {
        display: none;
    }
}

/* ====================================
   Mobile Navigation Enhancements
   ==================================== */

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
}

/* Body scroll lock when menu is open */
body.menu-open {
    overflow: hidden;
}

/* Small Mobile Devices (320px - 480px) */
@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .main-content {
        padding: var(--spacing-sm);
    }

    .page-header h1 {
        font-size: 1.5rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .stat-card {
        padding: var(--spacing-md);
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .stat-icon {
        width: 48px;
        height: 48px;
        font-size: 1.5rem;
    }

    .card-body {
        padding: var(--spacing-md);
    }

    .btn {
        padding: var(--spacing-sm);
        font-size: 0.8rem;
    }

    .quick-actions {
        grid-template-columns: repeat(2, 1fr);
    }

    .quick-action-btn {
        padding: var(--spacing-md);
    }

    .quick-action-icon {
        font-size: 1.5rem;
    }

    /* POS: very narrow – payment row stacks, 3-col products, compact cart */
    .pos-container,
    .pos-fullscreen .pos-container {
        grid-template-rows: 1fr minmax(260px, 45vh);
    }

    .pos-cart {
        min-height: 260px;
    }

    .pos-top-bar {
        padding: 0.35rem var(--spacing-sm);
        min-height: 40px;
    }

    .pos-top-bar-title {
        font-size: 1rem;
    }

    .pos-back-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.8125rem;
    }

    .pos-fullscreen .product-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.3rem;
    }

    .pos-fullscreen .product-card-name {
        font-size: 0.6875rem;
    }

    .pos-fullscreen .product-card-price {
        font-size: 0.8125rem;
    }

    .payment-type-wrap {
        min-width: 72px;
        max-width: 100%;
    }

    .amount-paid-wrap {
        min-width: 60px;
    }

    .customer-section,
    .cart-header,
    .cart-summary,
    .cart-payment {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

/* Mobile Navigation (up to 768px) */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .navbar {
        flex-wrap: wrap;
        padding: var(--spacing-sm) var(--spacing-md);
        position: relative;
    }

    .navbar-brand .brand-text {
        display: none;
    }

    .navbar-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 280px;
        height: 100vh;
        background: var(--color-surface);
        border-right: 1px solid var(--color-border);
        flex-direction: column;
        padding: var(--spacing-xl) var(--spacing-md);
        z-index: 1000;
        overflow-y: auto;
        transition: left 0.3s ease;
        box-shadow: var(--shadow-lg);
    }

    .navbar-menu.is-open {
        left: 0;
    }

    .navbar-menu .nav-link {
        width: 100%;
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
        margin-bottom: var(--spacing-xs);
    }

    .navbar-menu .nav-dropdown {
        width: 100%;
    }

    .navbar-menu .nav-dropdown-content {
        position: static;
        display: block;
        box-shadow: none;
        border: none;
        background: var(--color-surface-elevated);
        margin-top: var(--spacing-xs);
        margin-bottom: var(--spacing-sm);
        border-radius: var(--radius-md);
    }

    .navbar-end {
        gap: var(--spacing-sm);
    }

    .navbar-end .user-name {
        display: none;
    }

    .logout-btn span:last-child {
        display: none;
    }

    /* Modal Full Screen on Mobile */
    .modal-content {
        width: 100%;
        max-width: 100%;
        height: 100%;
        max-height: 100%;
        border-radius: 0;
    }

    /* Form Grid Single Column */
    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-group-full {
        grid-column: span 1;
    }

    /* Table Responsive Wrapper */
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 calc(-1 * var(--spacing-md));
        padding: 0 var(--spacing-md);
    }

    .data-table {
        min-width: 600px;
    }

    /* Card-based table for very small screens */
    .data-table-cards {
        min-width: auto;
    }

    .data-table-cards thead {
        display: none;
    }

    .data-table-cards tbody tr {
        display: block;
        background: var(--color-surface-elevated);
        border-radius: var(--radius-md);
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-sm);
        border: 1px solid var(--color-border);
    }

    .data-table-cards tbody td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: var(--spacing-xs) 0;
        border-bottom: 1px solid var(--color-border);
    }

    .data-table-cards tbody td:last-child {
        border-bottom: none;
    }

    .data-table-cards tbody td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--color-text-muted);
        font-size: 0.75rem;
        text-transform: uppercase;
    }
}

/* Tablet (768px - 1024px): same stacked layout so cart is visible when adding items */
@media (min-width: 768px) and (max-width: 1024px) {
    .pos-fullscreen .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }
}

/* Small screens / mobile: cart panel tall enough so Complete Sale button visible */
@media (max-width: 640px) {
    .pos-container,
    .pos-fullscreen .pos-container {
        grid-template-rows: 1fr minmax(280px, 50vh);
        height: calc(100vh - 52px);
    }

    .pos-cart {
        min-height: 280px;
        min-width: 0;
    }

    .pos-cart-inner {
        min-width: 0;
        overflow-x: hidden;
    }

    /* Payment row: fit narrow cart – smaller min-widths, allow wrap */
    .payment-single-row {
        gap: var(--spacing-xs);
    }
    .payment-type-wrap {
        min-width: 80px;
        max-width: 120px;
    }
    .amount-paid-wrap {
        min-width: 70px;
        max-width: 100%;
    }
    .complete-sale-btn {
        min-width: 80px;
        font-size: 0.75rem;
        padding: 0 0.5rem;
    }

    /* Denser product grid = more products on screen */
    .pos-fullscreen .product-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.375rem;
        padding-bottom: var(--spacing-sm);
    }

    .pos-fullscreen .product-card {
        padding: var(--spacing-xs);
    }

    .pos-fullscreen .product-card-name {
        font-size: 0.75rem;
        line-height: 1.2;
    }

    .pos-fullscreen .product-card-price {
        font-size: 0.875rem;
    }

    .pos-fullscreen .product-card-placeholder {
        font-size: 1.25rem;
    }

    .pos-fullscreen .product-card-visual {
        aspect-ratio: 0.9;
    }

    .pos-fullscreen .product-card-stock {
        font-size: 0.6875rem;
    }

    .pos-header {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .pos-search-wrap {
        padding: 0 var(--spacing-sm);
    }

    .pos-search-input {
        padding: var(--spacing-sm) 0;
        font-size: 1rem;
    }

    .pos-products {
        padding: var(--spacing-sm);
    }

    /* Cart list: scroll; summary + button stay visible */
    .cart-items {
        min-height: 0;
        -webkit-overflow-scrolling: touch;
    }

    .cart-summary,
    .cart-payment {
        padding: var(--spacing-xs) var(--spacing-sm);
        flex-shrink: 0;
    }

    .summary-row {
        font-size: 0.8125rem;
    }

    .summary-total {
        font-size: 1.125rem;
    }

    .complete-sale-btn {
        font-size: 0.875rem;
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .cart-item {
        padding: var(--spacing-xs);
    }

    .cart-title {
        font-size: 1rem;
    }

    .cart-count-badge {
        min-width: 1.35rem;
        height: 1.35rem;
        font-size: 0.75rem;
    }
}

/* Touch-friendly Controls */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 44px;
        min-width: 44px;
    }

    .form-input,
    .form-select {
        min-height: 44px;
        font-size: 16px;
        /* Prevents iOS zoom on focus */
    }

    .nav-link {
        min-height: 44px;
    }

    .cart-qty-btn,
    .cart-item-qty button {
        width: 40px;
        height: 40px;
        min-width: 40px;
        min-height: 40px;
    }

    .cart-item-remove {
        width: 44px;
        height: 44px;
        min-width: 44px;
        min-height: 44px;
    }

    .product-card {
        -webkit-tap-highlight-color: transparent;
    }
}

/* High Contrast Print Styles */
@media print {
    .app-top-bar,
    .sidebar,
    .sidebar-overlay,
    .mobile-menu-toggle,
    .navbar-end,
    .btn,
    .flash-message {
        display: none !important;
    }

    .navbar {
        position: static;
        border-bottom: 2px solid #000;
    }

    .main-content {
        padding: 0;
        max-width: none;
    }

    .card {
        border: 1px solid #000;
        break-inside: avoid;
    }
}

/* ====================================
   Modern UI Enhancements (WowDash-inspired)
   ==================================== */

/* Enhanced Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.page-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

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

/* Search Bar in Header */
.header-search {
    position: relative;
}

.header-search .search-input {
    padding: var(--spacing-sm) var(--spacing-md);
    padding-left: 2.5rem;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text);
    min-width: 250px;
    font-size: 0.875rem;
}

.header-search .search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
}

/* Modern Table Container (bank-ledger style – use project-wide) */
.table-container {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.table-container-padding {
    padding: var(--spacing-lg);
}

.table-container-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.table-container-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}

.table-container .table-responsive {
    overflow-x: auto;
}

.table-container .result-count,
.table-container .badge {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    background: var(--color-surface-elevated);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-weight: 500;
}

.data-table-modern .text-right {
    text-align: right;
}

/* Enhanced Data Table */
.data-table-modern {
    width: 100%;
    border-collapse: collapse;
}

.data-table-modern thead {
    background: var(--color-surface-elevated);
}

.data-table-modern th {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    font-weight: 600;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-border);
}

.data-table-modern td {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

.data-table-modern tbody tr {
    transition: background-color var(--transition-fast);
}

.data-table-modern tbody tr:hover {
    background: var(--color-surface-elevated);
}

.data-table-modern tbody tr:last-child td {
    border-bottom: none;
}

/* Product Info Cell */
.product-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.product-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    object-fit: cover;
    border: 1px solid var(--color-border);
}

.product-avatar-placeholder {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--color-surface-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    border: 1px solid var(--color-border);
}

.product-details {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

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

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

/* Icon Action Buttons */
.action-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--color-surface-elevated);
    color: var(--color-text);
    border-color: var(--color-text-muted);
}

/* View = light blue (eye), Edit = light green (pencil), Delete = light red (trash) */
.btn-icon.btn-icon-view {
    color: var(--color-info);
    border-color: var(--color-info-light);
    background: var(--color-info-light);
}
.btn-icon.btn-icon-view:hover {
    background: rgba(59, 130, 246, 0.25);
    color: var(--color-info);
    border-color: var(--color-info);
}

.btn-icon.btn-icon-edit {
    color: var(--color-success);
    border-color: var(--color-success-light);
    background: var(--color-success-light);
}
.btn-icon.btn-icon-edit:hover {
    background: rgba(16, 185, 129, 0.25);
    color: var(--color-success);
    border-color: var(--color-success);
}

.btn-icon.btn-icon-delete {
    color: var(--color-danger);
    border-color: var(--color-danger-light);
    background: var(--color-danger-light);
}
.btn-icon.btn-icon-delete:hover {
    background: rgba(239, 68, 68, 0.25);
    color: var(--color-danger);
    border-color: var(--color-danger);
}

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

.btn-icon.btn-icon-success:hover {
    background: var(--color-success-light);
    color: var(--color-success);
    border-color: var(--color-success);
}

.btn-icon.btn-icon-danger:hover {
    background: var(--color-danger-light);
    color: var(--color-danger);
    border-color: var(--color-danger);
}

.btn-icon.btn-icon-warning:hover {
    background: var(--color-warning-light);
    color: var(--color-warning);
    border-color: var(--color-warning);
}

.btn-icon svg {
    width: 18px;
    height: 18px;
}

/* Modern Form Section Title */
.form-section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.form-section-title-icon {
    color: var(--color-primary);
}

/* Price Display */
.price-display {
    font-weight: 600;
    color: var(--color-text);
}

.price-original {
    text-decoration: line-through;
    color: var(--color-text-muted);
    font-size: 0.8rem;
    margin-left: 0.25rem;
}

/* Stock Display */
.stock-display {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.stock-qty {
    font-weight: 500;
}

/* Enhanced Card */
.card-modern {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.card-modern .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface);
}

.card-modern .card-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
}

.card-modern .card-body {
    padding: var(--spacing-lg);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    cursor: pointer;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--color-border);
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    left: 2px;
    top: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: var(--transition-fast);
}

.toggle-switch input:checked+.toggle-slider {
    background: var(--color-success);
}

.toggle-switch input:checked+.toggle-slider::before {
    transform: translateX(20px);
}

/* Status Badge Pills */
.status-active {
    background: var(--color-success-light);
    color: var(--color-success);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.status-inactive {
    background: var(--color-danger-light);
    color: var(--color-danger);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.status-warning {
    background: var(--color-warning-light);
    color: var(--color-warning);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

/* ====================================
   Sidebar Navigation
   ==================================== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 240px;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    z-index: 1001;
    transition: width var(--transition-base), transform var(--transition-normal);
}

.sidebar-collapsed {
    width: 72px;
}

.sidebar-collapsed .sidebar-brand-text,
.sidebar-collapsed .sidebar-section-title,
.sidebar-collapsed .sidebar-text,
.sidebar-collapsed .sidebar-user-info,
.sidebar-collapsed .sidebar-actions {
    opacity: 0;
    visibility: hidden;
    width: 0;
    overflow: hidden;
}

/* Sidebar Header - compact */
.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    min-height: 52px;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-text);
}

.sidebar-brand-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.sidebar-brand-text {
    font-size: 1rem;
    font-weight: 700;
    white-space: nowrap;
    transition: opacity var(--transition-fast), width var(--transition-fast);
}

.sidebar-toggle {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.sidebar-toggle:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

/* Sidebar Content - compact, less scroll */
.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm) var(--spacing-md);
}

.sidebar-section {
    margin-bottom: var(--spacing-sm);
}

.sidebar-section-title {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    padding: 0.2rem var(--spacing-sm);
    margin-bottom: 0.15rem;
    white-space: nowrap;
    transition: opacity var(--transition-fast);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem var(--spacing-sm);
    border-radius: var(--radius-md);
    color: var(--color-text);
    text-decoration: none;
    transition: all var(--transition-fast);
    margin-bottom: 1px;
}

.sidebar-link:hover {
    background: var(--color-surface-elevated);
    color: var(--color-primary);
}

.sidebar-link.active {
    background: var(--color-primary);
    color: white;
}

/* Sidebar dropdown (Sales Reports, Other Reports) */
.sidebar-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}
.sidebar-menu .dropdown {
    list-style: none;
    margin: 0 0 2px 0;
}
.sidebar-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem var(--spacing-sm);
    border-radius: var(--radius-md);
    color: var(--color-text);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: 0;
}
.sidebar-dropdown-toggle:hover {
    background: var(--color-surface-elevated);
    color: var(--color-primary);
}
.sidebar-dropdown-toggle .dropdown-arrow {
    margin-left: auto;
    font-size: 0.75rem;
    transition: transform var(--transition-fast);
    opacity: 0.7;
}
.dropdown.dropdown-open .sidebar-dropdown-toggle .dropdown-arrow {
    transform: rotate(180deg);
}
.sidebar-submenu {
    list-style: none;
    margin: 0;
    padding: 0.15rem 0 0 0.5rem;
    border-left: 1px solid var(--color-border);
    margin-left: calc(20px + 0.35rem);
}
.sidebar-submenu li {
    margin: 0;
}
.sidebar-submenu li a {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem var(--spacing-sm);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.75rem;
    transition: all var(--transition-fast);
}
.sidebar-submenu li a:hover {
    background: var(--color-surface-elevated);
    color: var(--color-primary);
}
.sidebar-submenu li a.active {
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-weight: 600;
}
/* Circle icon (colored dot) for submenu items */
.circle-icon {
    display: inline-block;
    width: 6px;
    height: 6px;
    min-width: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}
.circle-icon.text-primary-600 { background: var(--color-primary); color: var(--color-primary); }
.circle-icon.text-warning-main { background: var(--color-warning); color: var(--color-warning); }
.circle-icon.text-info-main { background: var(--color-info); color: var(--color-info); }
.circle-icon.text-success-main { background: var(--color-success); color: var(--color-success); }
.circle-icon.text-danger-main { background: var(--color-danger); color: var(--color-danger); }

/* Collapsed sidebar: hide submenu and dropdown arrow */
.sidebar-collapsed .sidebar-submenu,
.sidebar-collapsed .dropdown-arrow {
    display: none !important;
}
.sidebar-collapsed .dropdown.open .sidebar-dropdown-toggle {
    background: transparent;
}

/* Legacy subsection (keep for any other use) */
.sidebar-subsection {
    margin-bottom: var(--spacing-md);
}
.sidebar-subsection-title {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    padding: var(--spacing-xs) var(--spacing-sm);
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    opacity: 0.9;
}
.sidebar-sublink {
    padding-left: 0;
    font-size: 0.8125rem;
}
.sidebar-submenu .sidebar-sublink {
    padding-left: 0;
}
.sidebar-sublink .sidebar-icon {
    font-size: 1rem;
    width: 20px;
}

.sidebar-icon {
    font-size: 1rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar-text {
    font-size: 0.8125rem;
    font-weight: 500;
    white-space: nowrap;
    transition: opacity var(--transition-fast), width var(--transition-fast);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.sidebar-user-avatar {
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.sidebar-user-info {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: opacity var(--transition-fast), width var(--transition-fast);
}

.sidebar-user-name {
    font-weight: 600;
    font-size: 0.875rem;
    white-space: nowrap;
}

.sidebar-user-role {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    white-space: nowrap;
}

.sidebar-actions {
    display: flex;
    gap: var(--spacing-xs);
    transition: opacity var(--transition-fast);
}

.sidebar-action-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* Theme toggle - WowDash-style pill */
.theme-toggle-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    min-width: 36px;
    height: 36px;
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-muted);
    font-size: 1rem;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

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

[data-theme="light"] .theme-toggle-btn {
    background: var(--color-surface-elevated);
}

/* Layout with Sidebar */
.app-layout {
    display: flex;
    min-height: 100vh;
    min-width: 0;
    width: 100%;
    overflow-x: clip;
}

.app-main {
    flex: 1;
    min-width: 0;
    margin-left: 240px;
    transition: margin-left var(--transition-base);
}

.sidebar-collapsed~.app-main {
    margin-left: 72px;
}

/* Top Header Bar */
.top-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.top-header-title h1 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.top-header-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.top-header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Top bar - clean header for all pages (menu + page title + actions) */
.app-top-bar {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    padding-top: calc(var(--spacing-sm) + env(safe-area-inset-top, 0px));
    padding-left: calc(var(--spacing-lg) + env(safe-area-inset-left, 0px));
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 1px 0 var(--color-border);
    min-height: 56px;
    min-width: 0;
    position: sticky;
    top: 0;
    z-index: 50;
}

.app-top-bar-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    cursor: pointer;
    min-height: 44px;
    min-width: 44px;
    transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}
.app-top-bar-menu-btn:hover {
    background: var(--color-surface-elevated);
    border-color: var(--color-primary);
    color: var(--color-primary);
}
.app-top-bar-menu-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.app-top-bar-title {
    flex: 1;
    min-width: 0;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.app-top-bar-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    min-width: 0;
    flex-shrink: 1;
}

.app-top-bar-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}
.app-top-bar-btn:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}
.app-top-bar-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.app-top-bar-user-block {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-left: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 1px solid var(--color-border);
}
.app-top-bar-user {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}
.app-top-bar-user-avatar {
    width: 28px;
    height: 28px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.75rem;
    flex-shrink: 0;
}
.app-top-bar-user-name {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.app-top-bar-theme-btn {
    padding: 0.35rem 0.5rem;
    min-width: auto;
}
.app-top-bar-logout-btn {
    padding: 0.35rem 0.6rem;
    font-size: 0.8125rem;
}
@media (max-width: 768px) {
    .app-top-bar-user-name { display: none; }
    .app-top-bar-user-block { margin-left: var(--spacing-sm); padding-left: var(--spacing-sm); }
}

/* Mobile: show menu button */
@media (max-width: 768px) {
    .app-top-bar-menu-btn {
        display: flex;
    }
}

/* Desktop: hide menu button, stronger title for wayfinding */
@media (min-width: 769px) {
    .app-top-bar {
        padding-left: var(--spacing-lg);
    }
    .app-top-bar-title {
        font-size: 1.0625rem;
        font-weight: 600;
        color: var(--color-text);
    }
}

/* Tablet & small laptop: avoid header overflow, slightly tighter content */
@media (min-width: 769px) and (max-width: 1024px) {
    .app-top-bar {
        flex-wrap: wrap;
        row-gap: var(--spacing-sm);
        align-items: center;
    }

    .app-top-bar-title {
        flex: 1 1 40%;
        min-width: 12rem;
    }

    .app-top-bar-actions {
        flex: 1 1 auto;
        justify-content: flex-end;
    }

    .app-top-bar-user-name {
        max-width: 72px;
    }

    .main-content {
        padding: var(--spacing-lg);
        padding-bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom, 0));
    }

    .report-page {
        padding: var(--spacing-sm);
    }

    .report-header {
        gap: var(--spacing-sm);
    }

    .report-header-right {
        width: 100%;
        max-width: 100%;
    }

    .report-header-right .date-range-form,
    .report-header-right form {
        flex-wrap: wrap;
        width: 100%;
    }
}

/* Legacy mobile header (keep for any refs) */
.mobile-header {
    display: none;
}
.mobile-header-menu-btn { display: none; }
.mobile-header-title { font-size: 0.9375rem; }

/* Body scroll lock when sidebar open on mobile */
body.sidebar-open-active {
    overflow: hidden;
    position: fixed;
    width: 100%;
}

/* Mobile Sidebar */
@media (max-width: 768px) {
    .app-top-bar-menu-btn {
        display: flex;
    }

    .sidebar {
        transform: translateX(-100%);
        width: min(240px, 85vw) !important;
        box-shadow: var(--shadow-lg);
    }

    .sidebar.sidebar-open {
        transform: translateX(0);
    }

    .app-main {
        margin-left: 0 !important;
    }

    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: var(--color-overlay);
        z-index: 1000;
        opacity: 0;
        transition: opacity var(--transition-normal);
    }

    .sidebar-overlay.active {
        display: block;
        opacity: 1;
    }
}

@media (min-width: 769px) {
    .app-top-bar-menu-btn {
        display: none !important;
    }
}

/* ====================================
   Receipt Modal Popup
   ==================================== */
.receipt-modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--color-overlay, rgba(0, 0, 0, 0.7));
    backdrop-filter: blur(4px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.receipt-modal {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 420px;
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.receipt-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.receipt-modal-header h3 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
}

.receipt-modal-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-modal {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.813rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
}

.btn-modal.print-btn {
    background: var(--color-surface);
    color: var(--color-primary);
}

.btn-modal.print-btn:hover {
    background: var(--color-surface-elevated);
}

.btn-modal.close-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.btn-modal.close-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.receipt-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    background: var(--color-bg);
}

.receipt-loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-muted);
}

.receipt-error {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-danger);
}

.receipt-error a {
    color: var(--color-primary);
    text-decoration: underline;
}

@media print {
    .receipt-modal,
    .receipt-modal-body,
    .receipt-modal-body .receipt {
        background: #fff !important;
        color: #000 !important;
    }
    .receipt-modal-body .receipt-items th,
    .receipt-modal-body .receipt-total { border-color: #000 !important; }
}

/* Receipt content styling in modal (theme-aware; print stays light below) */
.receipt-modal-body .receipt {
    background: var(--color-surface-elevated);
    color: var(--color-text);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    font-family: 'Courier New', monospace;
    font-size: 0.813rem;
}

.receipt-modal-body .receipt-header {
    text-align: center;
    margin-bottom: 1rem;
}

.receipt-modal-body .receipt-header h1 {
    font-size: 1.125rem;
    margin: 0 0 0.25rem;
}

.receipt-modal-body .receipt-header p {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 0.75rem;
}

.receipt-modal-body .receipt-divider {
    border-top: 1px dashed var(--color-border);
    margin: 0.75rem 0;
}

.receipt-modal-body .receipt-info p {
    margin: 0.25rem 0;
    font-size: 0.75rem;
}

.receipt-modal-body .receipt-items {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.75rem;
}

.receipt-modal-body .receipt-items th,
.receipt-modal-body .receipt-items td {
    padding: 0.25rem 0;
    text-align: left;
}

.receipt-modal-body .receipt-items th {
    border-bottom: 1px solid var(--color-border);
    font-weight: 600;
}

.receipt-modal-body .receipt-totals {
    margin-top: 0.5rem;
}

.receipt-modal-body .receipt-row {
    display: flex;
    justify-content: space-between;
    padding: 0.25rem 0;
    font-size: 0.813rem;
}

.receipt-modal-body .receipt-total {
    font-weight: 700;
    font-size: 1rem;
    border-top: 2px solid var(--color-border);
    margin-top: 0.5rem;
    padding-top: 0.5rem;
}

.receipt-modal-body .receipt-footer {
    text-align: center;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 1rem;
}

.receipt-modal-body .receipt-footer p {
    margin: 0.25rem 0;
}

/* ====================================
   Premium Components
   ==================================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    transition: all var(--transition-normal);
}

.glass-card:hover {
    border-color: var(--color-primary-glow);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.5);
}

.vibrant-card-primary {
    background: var(--gradient-primary);
    color: white;
}

.vibrant-card-success {
    background: var(--gradient-success);
    color: white;
}

.vibrant-card-danger {
    background: var(--gradient-danger);
    color: white;
}

.vibrant-card-warning {
    background: var(--gradient-warning);
    color: black;
}

.vibrant-card-info {
    background: var(--gradient-info);
    color: white;
}

.vibrant-card {
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    position: relative;
    overflow: hidden;
    border: none;
    box-shadow: var(--shadow-md);
}

.vibrant-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

.premium-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 8px;
}

.premium-table tr {
    transition: all var(--transition-fast);
}

.premium-table tbody tr {
    background: var(--color-surface);
    box-shadow: var(--shadow-soft);
}

.premium-table tbody tr:hover {
    transform: scale(1.01);
    background: var(--color-surface-elevated);
    box-shadow: var(--shadow-md);
}

.premium-table td:first-child,
.premium-table th:first-child {
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.premium-table td:last-child,
.premium-table th:last-child {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.premium-table th {
    padding: 1rem;
    color: var(--color-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
}

.premium-table td {
    padding: 1.25rem 1rem;
}

.btn-premium {
    background: var(--gradient-primary);
    color: white;
    font-weight: 600;
    border: none;
    box-shadow: var(--shadow-glow);
    transition: all var(--transition-normal);
}

.btn-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--color-primary-glow);
    filter: brightness(1.1);
}

/* DD/MM + calendar: one input-group (matches .form-input / .filter-input height) */
.dmy-date-field {
    display: inline-flex;
    max-width: 100%;
    vertical-align: middle;
}

.dmy-date-field-inner {
    position: relative;
    display: inline-flex;
    align-items: stretch;
    flex: 1 1 auto;
    min-width: 0;
    max-width: 100%;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface-elevated);
    overflow: hidden;
    min-height: 42px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.dmy-date-field-inner:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.dmy-date-field .dmy-date-display.form-input {
    width: auto;
    min-width: 6.75rem;
    flex: 1 1 auto;
    margin: 0;
    border: none;
    border-radius: 0;
    box-shadow: none !important;
    background: transparent;
    min-height: 42px;
    padding: 0.5rem 0.65rem;
    font-size: 0.9rem;
}

.dmy-date-field .dmy-date-display.form-input:focus {
    outline: none;
    box-shadow: none !important;
}

/* Hidden native date; opened via calendar button */
.dmy-date-picker-native {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: 0;
    padding: 0;
    bottom: 0;
    right: 2.75rem;
    opacity: 0;
    pointer-events: none;
    border: 0;
    clip: rect(0, 0, 0, 0);
}

.dmy-date-calendar-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    align-self: stretch;
    min-width: 2.75rem;
    margin: 0;
    padding: 0 0.45rem;
    border: none;
    border-left: 1px solid var(--color-border);
    border-radius: 0;
    background: var(--color-surface);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.dmy-date-calendar-btn:hover {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.dmy-date-calendar-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: -2px;
}

.dmy-date-calendar-icon {
    display: block;
    flex-shrink: 0;
}