/**
 * ScanFlow Design System
 *
 * A shared CSS design system for Tenant and Company portals.
 * Uses CSS custom properties (variables) for theming.
 *
 * @version 1.0.0
 * @since 017-ui-redesign
 */

/* =============================================================================
   1. CSS Reset (Minimal)
   ============================================================================= */

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    min-height: 100vh;
    line-height: var(--leading-normal);
    font-family: var(--font-family);
    background: var(--color-background);
    color: var(--color-text-primary);
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

input, button, textarea, select {
    font: inherit;
}

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

button {
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* =============================================================================
   2. Design Tokens (CSS Variables)
   ============================================================================= */

:root {
    /* -------------------------------------------------------------------------
       Google Fonts: Inter
       Add to HTML <head>:
       <link rel="preconnect" href="https://fonts.googleapis.com">
       <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
       <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
       ------------------------------------------------------------------------- */

    /* Font family */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;

    /* Font sizes */
    --font-xs: 0.75rem;     /* 12px */
    --font-sm: 0.875rem;    /* 14px */
    --font-base: 1rem;      /* 16px */
    --font-lg: 1.125rem;    /* 18px */
    --font-xl: 1.25rem;     /* 20px */
    --font-2xl: 1.5rem;     /* 24px */
    --font-3xl: 1.875rem;   /* 30px */

    /* Font weights */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /* Line heights */
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;

    /* Surface colors */
    --color-surface: #ffffff;
    --color-background: #faf9f7;
    --color-border: #d6d3d1;
    --color-border-light: #e7e5e4;

    /* Text colors */
    --color-text-primary: #1c1917;
    --color-text-secondary: #57534e;
    --color-text-muted: #a8a29e;
    --color-text-inverse: #ffffff;

    /* Accent colors (default - overridden by portal class) */
    --color-accent: #dc2626;
    --color-accent-hover: #b91c1c;
    --color-accent-subtle: rgba(220, 38, 38, 0.08);

    /* Semantic colors */
    --color-success: #22c55e;
    --color-success-subtle: #dcfce7;
    --color-warning: #f59e0b;
    --color-warning-subtle: #fef3c7;
    --color-danger: #ef4444;
    --color-danger-subtle: #fee2e2;
    --color-info: #3b82f6;
    --color-info-subtle: #dbeafe;

    /* Header */
    --color-header-bg: #1c1917;
    --color-header-text: #ffffff;

    /* Spacing scale (4px base) */
    --space-0: 0;
    --space-1: 0.25rem;    /* 4px */
    --space-2: 0.5rem;     /* 8px */
    --space-3: 0.75rem;    /* 12px */
    --space-4: 1rem;       /* 16px */
    --space-5: 1.25rem;    /* 20px */
    --space-6: 1.5rem;     /* 24px */
    --space-8: 2rem;       /* 32px */
    --space-10: 2.5rem;    /* 40px */
    --space-12: 3rem;      /* 48px */

    /* Border radius */
    --radius-sm: 0.1875rem;  /* 3px */
    --radius-md: 0.25rem;    /* 4px */
    --radius-lg: 0.375rem;   /* 6px */
    --radius-xl: 0.5rem;     /* 8px */
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.07);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* Layout */
    --sidebar-width: 240px;
    --sidebar-collapsed-width: 64px;
    --header-height: 52px;
    --content-max-width: 1280px;
}

/* =============================================================================
   3. Portal-Specific Color Overrides
   ============================================================================= */

html.portal-tenant {
    --color-accent: #dc2626;
    --color-accent-hover: #b91c1c;
    --color-accent-subtle: rgba(220, 38, 38, 0.08);
}

html.portal-company {
    --color-accent: #2563eb;
    --color-accent-hover: #1d4ed8;
    --color-accent-subtle: rgba(37, 99, 235, 0.08);
}

html.portal-saas-admin {
    --color-accent: #4f46e5;
    --color-accent-hover: #4338ca;
    --color-accent-subtle: rgba(79, 70, 229, 0.1);
}

/* =============================================================================
   4. Base Typography
   ============================================================================= */

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-semibold);
    line-height: var(--leading-tight);
    color: var(--color-text-primary);
}

h1 { font-size: var(--font-3xl); letter-spacing: -0.03em; }
h2 { font-size: var(--font-2xl); letter-spacing: -0.025em; }
h3 { font-size: var(--font-xl);  letter-spacing: -0.02em; }
h4 { font-size: var(--font-lg); }
h5 { font-size: var(--font-base); }
h6 { font-size: var(--font-sm); }

p {
    margin-bottom: var(--space-4);
}

small {
    font-size: var(--font-sm);
}

.text-xs { font-size: var(--font-xs); }
.text-sm { font-size: var(--font-sm); }
.text-base { font-size: var(--font-base); }
.text-lg { font-size: var(--font-lg); }
.text-xl { font-size: var(--font-xl); }
.text-2xl { font-size: var(--font-2xl); }
.text-3xl { font-size: var(--font-3xl); }

.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-accent { color: var(--color-accent); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }
.text-info { color: var(--color-info); }

.font-normal { font-weight: var(--font-normal); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}
.status-dot--success { background: var(--color-success); }
.status-dot--danger  { background: var(--color-danger); }
.status-dot--warning { background: var(--color-warning); }
.status-dot--info    { background: var(--color-info); }

.badge-purple {
    background: rgba(124, 58, 237, 0.1);
    color: #7c3aed;
}

/* =============================================================================
   5. Layout Components
   ============================================================================= */

.layout {
    display: flex;
    min-height: calc(100vh - var(--header-height));
}

.main-content {
    flex: 1;
    padding: var(--space-6);
    overflow-x: auto;
    max-width: var(--content-max-width);
}

.page-header {
    margin-bottom: var(--space-6);
}

.page-title {
    font-size: var(--font-2xl);
    font-weight: var(--font-semibold);
    letter-spacing: -0.03em;
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
}

.page-subtitle {
    color: var(--color-text-secondary);
    font-size: var(--font-sm);
}

/* =============================================================================
   6. Header Styles
   ============================================================================= */

.header {
    background: var(--color-header-bg);
    padding: var(--space-3) var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-header-text);
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-height);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-weight: var(--font-semibold);
    font-size: var(--font-lg);
    text-decoration: none;
    color: var(--color-header-text);
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--color-accent);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-image {
    max-height: 40px;
    width: auto;
    object-fit: contain;
}

/* Tenant logo in header */
.logo .tenant-logo {
    max-height: 36px;
    max-width: 120px;
    width: auto;
    height: auto;
    object-fit: contain;
}

.logo-text {
    font-weight: var(--font-semibold);
    font-size: var(--font-lg);
    color: var(--color-header-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

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

.role-badge {
    display: inline-block;
    background: var(--color-accent-subtle);
    color: var(--color-accent);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    font-size: var(--font-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
}

.btn-logout {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-header-text);
    padding: var(--space-2) var(--space-3);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    font-size: var(--font-sm);
    transition: background var(--transition-fast);
}

.btn-logout:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-header-text);
    padding: var(--space-2) var(--space-3);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    font-size: var(--font-sm);
    transition: background var(--transition-fast);
}

.btn-back:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Search placeholder (disabled) */
.search-placeholder {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    font-size: var(--font-sm);
    opacity: 0.5;
    cursor: not-allowed;
}

.search-placeholder svg {
    width: 16px;
    height: 16px;
}

/* =============================================================================
   7. Sidebar Navigation Styles
   ============================================================================= */

.sidebar {
    width: var(--sidebar-width);
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    padding: var(--space-4) 0;
    flex-shrink: 0;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: var(--space-6);
}

.nav-section-title {
    font-size: var(--font-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    padding: 0 var(--space-4);
    margin-bottom: var(--space-2);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-sm);
    transition: background var(--transition-fast), color var(--transition-fast);
    border-left: 3px solid transparent;
    min-height: 44px; /* Touch target */
}

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

.nav-link.active {
    background: transparent;
    color: var(--color-accent);
    border-left-color: var(--color-accent);
    font-weight: var(--font-medium);
}

.nav-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-label {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-badge {
    flex-shrink: 0;
    background: var(--color-danger);
    color: var(--color-text-inverse);
    font-size: var(--font-xs);
    font-weight: var(--font-semibold);
    padding: 0.125rem var(--space-2);
    border-radius: var(--radius-full);
    min-width: 1.25rem;
    text-align: center;
}

/* =============================================================================
   8. Card Styles
   ============================================================================= */

.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    margin-bottom: var(--space-4);
}

.card-header {
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title {
    font-size: var(--font-base);
    font-weight: var(--font-semibold);
    margin: 0;
}

.card-body {
    padding: var(--space-5);
}

/* Stat Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.stat-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: var(--space-5);
    transition: border-color var(--transition-fast);
}

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

.stat-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-2);
}

.stat-icon {
    width: 24px;
    height: 24px;
    color: var(--color-accent);
}

.stat-label {
    color: var(--color-text-secondary);
    font-size: var(--font-sm);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.stat-value {
    font-size: var(--font-3xl);
    font-weight: var(--font-semibold);
    letter-spacing: -0.04em;
    color: var(--color-text-primary);
    line-height: 1;
}

.stat-card.highlight {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.stat-card.highlight .stat-label,
.stat-card.highlight .stat-value,
.stat-card.highlight .stat-icon {
    color: var(--color-text-inverse);
}

.stat-link {
    display: block;
    margin-top: var(--space-3);
    font-size: var(--font-sm);
    color: var(--color-accent);
    text-decoration: none;
}

.stat-link:hover {
    text-decoration: underline;
}

.stat-card.highlight .stat-link {
    color: var(--color-text-inverse);
    opacity: 0.9;
}

/* Stat card component structure */
.stat-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.stat-card-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.stat-card-icon {
    width: 20px;
    height: 20px;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.stat-card-highlight .stat-card-icon {
    color: rgba(255, 255, 255, 0.7);
}

.stat-card-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.stat-card-label {
    display: block;
    font-size: var(--font-xs);
    font-weight: var(--font-medium);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.stat-card-value {
    display: block;
    font-size: var(--font-3xl);
    font-weight: var(--font-semibold);
    letter-spacing: -0.04em;
    line-height: 1;
    color: var(--color-text-primary);
}

.stat-card-highlight .stat-card-value,
.stat-card-highlight .stat-card-label {
    color: var(--color-text-inverse);
}

.stat-card-badge {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    background: var(--color-danger);
    color: var(--color-text-inverse);
    font-size: var(--font-xs);
    font-weight: var(--font-semibold);
    padding: 0.125rem var(--space-2);
    border-radius: var(--radius-full);
    min-width: 1.25rem;
    text-align: center;
}

.stat-card {
    position: relative;
}

/* =============================================================================
   9. Button Styles
   ============================================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-sm);
    font-weight: var(--font-medium);
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast);
    min-height: 44px; /* Touch target */
}

.btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-text-inverse);
}

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

.btn-secondary {
    background: var(--color-background);
    color: var(--color-text-primary);
}

.btn-secondary:hover {
    background: var(--color-border);
}

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

.btn-danger:hover {
    background: #dc2626;
}

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

.btn-success:hover {
    background: #16a34a;
}

.btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-xs);
    min-height: 32px;
}

.btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-base);
}

/* Button loading state */
.btn.is-loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn.is-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: btn-spinner 0.6s linear infinite;
}

@keyframes btn-spinner {
    to { transform: rotate(360deg); }
}

/* =============================================================================
   10. Form Styles
   ============================================================================= */

.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    font-weight: var(--font-medium);
    margin-bottom: var(--space-2);
    font-size: var(--font-sm);
    color: var(--color-text-primary);
}

.form-control {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-sm);
    background: var(--color-surface);
    color: var(--color-text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    min-height: 44px; /* Touch target */
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-subtle);
}

.form-control:disabled {
    background: var(--color-background);
    cursor: not-allowed;
    opacity: 0.6;
}

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

.form-text {
    font-size: var(--font-xs);
    color: var(--color-text-secondary);
    margin-top: var(--space-1);
}

.form-error {
    color: var(--color-danger);
    font-size: var(--font-xs);
    margin-top: var(--space-1);
}

.form-control.is-invalid {
    border-color: var(--color-danger);
}

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px var(--color-danger-subtle);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    background-size: 16px;
    padding-right: var(--space-10);
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

/* =============================================================================
   11. Table Styles
   ============================================================================= */

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

.table th,
.table td {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--color-border-light);
}

.table th {
    font-weight: var(--font-semibold);
    color: var(--color-text-secondary);
    font-size: var(--font-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--color-background);
}

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

/* Zebra striping */
.table-striped tbody tr:nth-child(even) {
    background: var(--color-background);
}

.table-striped tbody tr:nth-child(even):hover {
    background: var(--color-border-light);
}

/* Responsive table wrapper */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* =============================================================================
   12. Alert and Badge Styles
   ============================================================================= */

.alert {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    font-size: var(--font-sm);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.alert-success {
    background: var(--color-success-subtle);
    color: #166534;
    border: 1px solid #bbf7d0;
}

.alert-danger {
    background: var(--color-danger-subtle);
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-warning {
    background: var(--color-warning-subtle);
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert-info {
    background: var(--color-info-subtle);
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    font-size: var(--font-xs);
    font-weight: var(--font-semibold);
}

.badge-success {
    background: var(--color-success-subtle);
    color: #166534;
}

.badge-warning {
    background: var(--color-warning-subtle);
    color: #92400e;
}

.badge-danger {
    background: var(--color-danger-subtle);
    color: #991b1b;
}

.badge-info {
    background: var(--color-info-subtle);
    color: #1e40af;
}

.badge-secondary {
    background: var(--color-background);
    color: var(--color-text-secondary);
}

/* =============================================================================
   13. Utility Classes
   ============================================================================= */

/* Spacing utilities */
.m-0 { margin: 0; }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-3 { margin: var(--space-3); }
.m-4 { margin: var(--space-4); }
.m-6 { margin: var(--space-6); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }

.p-0 { padding: 0; }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }

/* Flexbox utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

/* Display utilities */
.hidden { display: none; }
.is-hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.inline-flex { display: inline-flex; }

/* Text utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Layout utilities */
.card-body--flush { padding: 0; }

.btn-group {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
    align-items: center;
}

.page-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.order-detail-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-6);
}

@media (max-width: 767px) {
    .order-detail-grid { grid-template-columns: 1fr; }
    .page-header-row { flex-direction: column; align-items: flex-start; }
}

/* Spinner */
.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--color-text-inverse);
    border-radius: var(--radius-full);
    animation: spin 0.6s linear infinite;
    margin-right: var(--space-2);
    vertical-align: middle;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* =============================================================================
   14. Icon Utilities
   ============================================================================= */

.icon-xs { width: 0.75rem; height: 0.75rem; }
.icon-sm { width: 1rem; height: 1rem; }
.icon-base { width: 1.25rem; height: 1.25rem; }
.icon-lg { width: 1.5rem; height: 1.5rem; }
.icon-xl { width: 2rem; height: 2rem; }

.icon-nav { width: 1.25rem; height: 1.25rem; }
.icon-btn { width: 1rem; height: 1rem; }
.icon-stat { width: 1.5rem; height: 1.5rem; }

/* =============================================================================
   15. Empty State
   ============================================================================= */

.empty-state {
    text-align: center;
    padding: var(--space-12);
    color: var(--color-text-secondary);
}

.empty-state-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-4);
    color: var(--color-text-muted);
}

.empty-state-title {
    font-size: var(--font-lg);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.empty-state-text {
    font-size: var(--font-sm);
    margin-bottom: var(--space-4);
}

/* =============================================================================
   16. Pagination
   ============================================================================= */

.pagination {
    display: flex;
    gap: var(--space-1);
    list-style: none;
    margin-top: var(--space-4);
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: var(--space-1) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--color-text-primary);
    font-size: var(--font-sm);
    transition: background var(--transition-fast);
}

.pagination a:hover {
    background: var(--color-background);
}

.pagination .active span {
    background: var(--color-accent);
    color: var(--color-text-inverse);
    border-color: var(--color-accent);
}

.pagination .disabled span {
    color: var(--color-text-muted);
    cursor: not-allowed;
}

/* =============================================================================
   17. Actions Row
   ============================================================================= */

.actions {
    display: flex;
    gap: var(--space-2);
}

.filter-bar {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
}

.filter-bar .form-control {
    max-width: 250px;
}

/* =============================================================================
   18. Breadcrumbs
   ============================================================================= */

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.breadcrumbs a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
    color: var(--color-accent);
}

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

.breadcrumbs-current {
    color: var(--color-text-primary);
    font-weight: var(--font-medium);
}

/* =============================================================================
   19. Responsive Breakpoints
   ============================================================================= */

/* Mobile: < 768px */
@media (max-width: 767px) {
    .sidebar {
        display: none;
    }

    .main-content {
        padding: var(--space-4);
    }

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

    .header {
        padding: var(--space-3) var(--space-4);
    }

    .user-name {
        display: none;
    }

    .search-placeholder {
        display: none;
    }

    .filter-bar {
        flex-direction: column;
    }

    .filter-bar .form-control {
        max-width: 100%;
    }

    .breadcrumbs {
        display: none;
    }
}

/* Tablet: 768px - 1023px */
@media (min-width: 768px) and (max-width: 1023px) {
    .sidebar {
        width: var(--sidebar-collapsed-width);
    }

    .nav-section-title,
    .nav-label {
        display: none;
    }

    .nav-link {
        justify-content: center;
        padding: var(--space-3);
    }

    .nav-badge {
        position: absolute;
        top: 2px;
        right: 2px;
        transform: scale(0.8);
    }

    .sidebar:hover {
        width: var(--sidebar-width);
    }

    .sidebar:hover .nav-section-title,
    .sidebar:hover .nav-label {
        display: block;
    }

    .sidebar:hover .nav-link {
        justify-content: flex-start;
        padding: var(--space-3) var(--space-4);
    }

    .sidebar:hover .nav-badge {
        position: static;
        transform: scale(1);
    }
}

/* Wide screens: >= 1280px */
@media (min-width: 1280px) {
    .main-content {
        margin: 0 auto;
    }
}

/* =============================================================================
   20. Mobile Menu
   ============================================================================= */

.mobile-menu-trigger {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    background: transparent;
    border: none;
    color: var(--color-header-text);
    cursor: pointer;
}

@media (max-width: 767px) {
    .mobile-menu-trigger {
        display: flex;
    }
}

.mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    width: 280px;
    background: var(--color-surface);
    visibility: hidden;
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    z-index: 200;
    overflow-y: auto;
    padding: var(--space-4) 0;
}

.mobile-menu.is-open {
    visibility: visible;
    transform: translateX(0);
}

.mobile-menu-overlay {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
    z-index: 199;
}

.mobile-menu-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

body.menu-open {
    overflow: hidden;
}

/* =============================================================================
   21. Skeleton Loading
   ============================================================================= */

.skeleton {
    background: linear-gradient(90deg,
        var(--color-background) 25%,
        var(--color-border-light) 50%,
        var(--color-background) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

.skeleton-text {
    height: 1em;
    margin-bottom: var(--space-2);
}

.skeleton-title {
    height: 1.5em;
    width: 60%;
    margin-bottom: var(--space-3);
}

.skeleton-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
}

.skeleton-card {
    height: 120px;
}

@keyframes skeleton-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* =============================================================================
   22. Transitions and Animations
   ============================================================================= */

/* Spinner animation */
@keyframes spin {
    to { transform: rotate(360deg); }
}

.animate-spin {
    animation: spin 1s linear infinite;
}

/* Fade in */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.animate-fade-in {
    animation: fadeIn var(--transition-base);
}

/* =============================================================================
   23. Accessibility: Reduced Motion
   ============================================================================= */

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

    .skeleton {
        animation: none;
        background: var(--color-background);
    }
}

/* =============================================================================
   24. Focus Visible (Keyboard Navigation)
   ============================================================================= */

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Remove default focus for mouse users */
:focus:not(:focus-visible) {
    outline: none;
}

/* =============================================================================
   25. Print Styles
   ============================================================================= */

@media print {
    .header,
    .sidebar,
    .mobile-menu,
    .mobile-menu-overlay,
    .btn,
    .pagination {
        display: none !important;
    }

    .main-content {
        padding: 0;
        max-width: 100%;
    }

    body {
        background: white;
        color: black;
    }
}

/* =============================================================================
   26. User App Layout (Feature 018)
   ============================================================================= */

/* User Layout Container */
.user-layout {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-height: 100dvh; /* Dynamic viewport height for mobile */
    background: var(--color-background);
}

/* Compact User Header (48-56px height) */
.user-header {
    background: var(--color-header-bg);
    padding: var(--space-2) var(--space-4);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-header-text);
    position: sticky;
    top: 0;
    z-index: 100;
    height: 52px;
    flex-shrink: 0;
}

.user-header-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    color: var(--color-header-text);
}

.user-logo-image,
.user-header-logo .tenant-logo {
    max-height: 32px !important;
    max-width: 120px;
    width: auto;
    height: auto;
    object-fit: contain;
}

.user-header-title {
    font-weight: var(--font-semibold);
    font-size: var(--font-base);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 180px;
}

.user-header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.user-header-name {
    font-size: var(--font-sm);
    color: var(--color-text-muted);
    display: none;
}

@media (min-width: 480px) {
    .user-header-name {
        display: block;
    }
}

/* User Content Area */
.user-content {
    flex: 1;
    padding: var(--space-4);
    padding-bottom: calc(70px + var(--space-4)); /* Space for bottom nav */
    max-width: var(--content-max-width);
    margin: 0 auto;
    width: 100%;
}

/* =============================================================================
   27. Bottom Navigation (Feature 018)
   ============================================================================= */

/* Bottom Nav Container - Mobile */
.bottom-nav {
    display: flex;
    justify-content: space-around;
    align-items: stretch;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-1) 0;
    padding-bottom: env(safe-area-inset-bottom, 0); /* iOS safe area */
    height: auto;
    min-height: 60px;
}

/* Desktop Nav Container - Hidden on mobile */
.desktop-nav {
    display: none;
}

/* Bottom Nav Item */
.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    padding: var(--space-2);
    min-width: 64px;
    min-height: 44px; /* Touch target */
    text-decoration: none;
    color: var(--color-text-secondary);
    font-size: var(--font-xs);
    transition: color var(--transition-fast);
    position: relative;
}

.bottom-nav-item:hover {
    color: var(--color-text-primary);
}

.bottom-nav-item.active {
    color: var(--color-accent);
}

.bottom-nav-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
}

.bottom-nav-icon svg {
    width: 24px;
    height: 24px;
}

.bottom-nav-label {
    font-weight: var(--font-medium);
    white-space: nowrap;
}

/* Bottom Nav Badge */
.bottom-nav-badge {
    position: absolute;
    top: 2px;
    right: calc(50% - 20px);
    background: var(--color-danger);
    color: var(--color-text-inverse);
    font-size: 10px;
    font-weight: var(--font-bold);
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

/* =============================================================================
   28. Desktop Navigation Override (≥1024px)
   ============================================================================= */

@media (min-width: 1024px) {
    /* Hide mobile bottom nav on desktop */
    .bottom-nav {
        display: none;
    }

    /* Show desktop nav in header area */
    .desktop-nav {
        display: flex;
        justify-content: flex-start;
        align-items: center;
        gap: var(--space-2);
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        padding: 0 var(--space-6);
        height: 48px;
    }

    .desktop-nav .bottom-nav-item {
        flex-direction: row;
        gap: var(--space-2);
        padding: var(--space-2) var(--space-4);
        min-width: auto;
        border-radius: var(--radius-md);
    }

    .desktop-nav .bottom-nav-item:hover {
        background: var(--color-background);
    }

    .desktop-nav .bottom-nav-item.active {
        background: var(--color-accent-subtle);
        color: var(--color-accent);
    }

    .desktop-nav .bottom-nav-icon {
        width: 20px;
        height: 20px;
    }

    .desktop-nav .bottom-nav-icon svg {
        width: 20px;
        height: 20px;
    }

    .desktop-nav .bottom-nav-badge {
        position: static;
        margin-left: var(--space-1);
    }

    /* Remove bottom padding on desktop */
    .user-content {
        padding-bottom: var(--space-4);
    }
}

/* =============================================================================
   29. Compact Scanner Layout (Feature 018 - US2)
   ============================================================================= */

.compact-scanner {
    height: calc(100vh - 52px - 60px); /* Header + Bottom nav */
    height: calc(100dvh - 52px - 60px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: var(--space-3);
    gap: var(--space-3);
}

@media (min-width: 1024px) {
    .compact-scanner {
        height: calc(100vh - 52px - 48px); /* Header + Desktop nav */
        height: calc(100dvh - 52px - 48px);
        max-width: 600px;
        margin: 0 auto;
    }
}

.scanner-camera-container {
    flex: 1;
    max-height: 50vh;
    min-height: 200px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #000;
    position: relative;
}

.scanner-camera-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.scanner-controls-compact {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

/* Mode Selector (Compact Dropdown Style) */
.mode-selector-compact {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: box-shadow var(--transition-fast);
}

.mode-selector-compact:hover {
    box-shadow: var(--shadow-md);
}

.mode-selector-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-text-secondary);
    font-size: var(--font-sm);
}

.mode-selector-value {
    color: var(--color-accent);
    font-weight: var(--font-semibold);
}

/* Scan History Toggle */
.scan-history-container {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.scan-history-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3);
    background: transparent;
    border: none;
    width: 100%;
    cursor: pointer;
    color: var(--color-text-primary);
    font-size: var(--font-sm);
    font-weight: var(--font-medium);
}

.scan-history-toggle:hover {
    background: var(--color-background);
}

.scan-history-toggle-icon {
    transition: transform var(--transition-fast);
}

.scan-history-toggle[aria-expanded="true"] .scan-history-toggle-icon {
    transform: rotate(180deg);
}

.scan-history-content {
    display: none;
    max-height: 30vh;
    overflow-y: auto;
    border-top: 1px solid var(--color-border);
}

.scan-history-content.expanded {
    display: block;
}

.scan-history-item {
    padding: var(--space-3);
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-sm);
}

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

.scan-history-item.new {
    background: var(--color-success-subtle);
}

.scan-history-product {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-right: var(--space-3);
}

.scan-history-qty {
    color: var(--color-accent);
    font-weight: var(--font-semibold);
}

.scan-history-time {
    color: var(--color-text-muted);
    font-size: var(--font-xs);
    margin-left: var(--space-2);
}

.scan-history-empty {
    padding: var(--space-4);
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-sm);
}

/* =============================================================================
   30. Compact Product Card (Feature 018 - US5)
   ============================================================================= */

.product-card-compact {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-3);
    box-shadow: var(--shadow-md);
    max-height: 40vh;
    overflow-y: auto;
    animation: slideUp var(--transition-base);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-2);
}

.product-card-name {
    font-size: var(--font-base);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    line-height: var(--leading-tight);
    /* Truncate after 2 lines */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card-details {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
    font-size: var(--font-xs);
    color: var(--color-text-secondary);
}

.product-card-detail {
    background: var(--color-background);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
}

.product-card-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.product-card-quantity {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.product-card-qty-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-primary);
    font-size: var(--font-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.product-card-qty-btn:hover {
    background: var(--color-background);
    border-color: var(--color-accent);
}

.product-card-qty-input {
    width: 60px;
    text-align: center;
    padding: var(--space-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-base);
    font-weight: var(--font-semibold);
}

.product-card-qty-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-subtle);
}

.product-card-add-btn {
    flex: 1;
}

/* =============================================================================
   31. User Dashboard Cards (Feature 018 - US1)
   ============================================================================= */

.user-dashboard {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.user-dashboard-header {
    margin-bottom: var(--space-2);
}

.user-dashboard-greeting {
    font-size: var(--font-2xl);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
}

.user-dashboard-subtitle {
    color: var(--color-text-secondary);
    font-size: var(--font-sm);
}

.user-action-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-4);
}

.user-action-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: var(--space-5);
    transition: border-color var(--transition-fast);
    text-decoration: none;
    color: inherit;
    display: block;
}

.user-action-card:hover {
    border-color: var(--color-accent);
}

.user-action-card-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
    color: var(--color-accent);
}

.user-action-card-title {
    font-size: var(--font-base);
    font-weight: var(--font-semibold);
    letter-spacing: -0.01em;
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
}

.user-action-card-description {
    font-size: var(--font-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
    line-height: var(--leading-relaxed);
}

.user-action-card-link {
    font-size: var(--font-sm);
    font-weight: var(--font-medium);
    color: var(--color-accent);
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.user-action-card-link::after {
    content: '→';
}

/* Highlighted card variant (e.g., for company admin access) */
.user-action-card.highlight {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-text-inverse);
}

.user-action-card.highlight:hover {
    border-color: var(--color-accent-hover);
    background: var(--color-accent-hover);
}

.user-action-card.highlight .user-action-card-icon {
    color: rgba(255, 255, 255, 0.85);
}

.user-action-card.highlight .user-action-card-title,
.user-action-card.highlight .user-action-card-description,
.user-action-card.highlight .user-action-card-link {
    color: var(--color-text-inverse);
}

/* Pending badge on card */
.user-action-card-badge {
    display: inline-block;
    background: var(--color-warning-subtle);
    color: #92400e;
    font-size: var(--font-xs);
    font-weight: var(--font-semibold);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-2);
}

/* =============================================================================
   32. Status Message (User App)
   ============================================================================= */

.user-status-message {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-3);
    font-size: var(--font-sm);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.user-status-message.info {
    background: var(--color-info-subtle);
    color: #1e40af;
}

.user-status-message.success {
    background: var(--color-success-subtle);
    color: #166534;
}

.user-status-message.error {
    background: var(--color-danger-subtle);
    color: #991b1b;
}

.user-status-message.warning {
    background: var(--color-warning-subtle);
    color: #92400e;
}

/* =============================================================================
   33. Toast Notifications (User App)
   ============================================================================= */

.toast-container {
    position: fixed;
    bottom: 80px; /* Above bottom nav */
    left: 50%;
    transform: translateX(-50%);
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    pointer-events: none;
}

@media (min-width: 1024px) {
    .toast-container {
        bottom: var(--space-6);
    }
}

.toast {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-sm);
    font-weight: var(--font-medium);
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.3s ease, toastOut 0.3s ease 1.7s forwards;
    white-space: nowrap;
}

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

.toast.error {
    background: var(--color-danger);
    color: var(--color-text-inverse);
}

.toast.warning {
    background: var(--color-warning);
    color: #000;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes toastOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-20px);
    }
}

/* =============================================================================
   34. Bluetooth Scanner Section (Feature 018)
   ============================================================================= */

.bluetooth-section {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.bluetooth-section-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-3);
}

.bluetooth-section-title {
    font-size: var(--font-lg);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-3);
}

.bluetooth-input {
    width: 100%;
    padding: var(--space-3);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-background);
    color: var(--color-text-primary);
    font-size: var(--font-lg);
    text-align: center;
    transition: border-color var(--transition-fast);
}

.bluetooth-input:focus {
    outline: none;
    border-color: var(--color-accent);
    background: var(--color-surface);
}

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

.bluetooth-hint {
    font-size: var(--font-sm);
    color: var(--color-text-secondary);
    margin-top: var(--space-3);
}

.bluetooth-last-scan {
    margin-top: var(--space-4);
    padding: var(--space-3);
    background: var(--color-success-subtle);
    border-radius: var(--radius-md);
    display: none;
}

.bluetooth-last-scan.visible {
    display: block;
    animation: slideUp var(--transition-base);
}

.bluetooth-last-product {
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
}

.bluetooth-last-qty {
    appearance: none;
    padding: 0;
    border: 0;
    background: transparent;
    font: inherit;
    font-size: var(--font-sm);
    color: #166534;
    cursor: pointer;
    text-decoration: underline;
}

.bluetooth-last-qty:hover {
    color: #15803d;
}

.bluetooth-last-qty:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* =============================================================================
   35. User App - Responsive Adjustments
   ============================================================================= */

/* Very small screens (< 320px) */
@media (max-width: 319px) {
    .user-header {
        padding: var(--space-2);
    }

    .user-header-title {
        max-width: 120px;
        font-size: var(--font-sm);
    }

    .bottom-nav-item {
        min-width: 48px;
        padding: var(--space-1);
    }

    .bottom-nav-label {
        font-size: 10px;
    }

    .user-content {
        padding: var(--space-2);
        padding-bottom: calc(60px + var(--space-2));
    }

    .compact-scanner {
        padding: var(--space-2);
        gap: var(--space-2);
    }
}

/* Landscape mode on small phones */
@media (max-height: 500px) and (orientation: landscape) {
    .compact-scanner {
        flex-direction: row;
        height: calc(100vh - 52px);
        height: calc(100dvh - 52px);
    }

    .scanner-camera-container {
        flex: 1;
        max-height: none;
        max-width: 50%;
    }

    .scanner-controls-compact {
        flex: 1;
        overflow-y: auto;
    }

    .bottom-nav {
        display: none;
    }

    .user-content {
        padding-bottom: var(--space-4);
    }
}

/* =============================================================================
   36. Cart Page Styles (Feature 018)
   ============================================================================= */

.cart-container {
    max-width: 600px;
    margin: 0 auto;
}

.cart-summary {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-bottom: var(--space-4);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

.cart-summary-label {
    color: var(--color-text-secondary);
    font-size: var(--font-sm);
}

.cart-summary-value {
    font-size: var(--font-2xl);
    font-weight: var(--font-bold);
    color: var(--color-accent);
}

.cart-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.cart-item {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
    animation: fadeIn var(--transition-base);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeOut {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(-10px); }
}

.cart-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-3);
}

.cart-item-name {
    font-weight: var(--font-semibold);
    font-size: var(--font-base);
    flex: 1;
    margin-right: var(--space-4);
    color: var(--color-text-primary);
}

.cart-item-remove {
    background: var(--color-danger-subtle);
    color: var(--color-danger);
    border: none;
    width: 28px;
    height: 28px;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast);
}

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

.cart-item-details {
    color: var(--color-text-secondary);
    font-size: var(--font-sm);
    margin-bottom: var(--space-3);
}

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

.cart-quantity-control {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.cart-quantity-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-primary);
    font-size: var(--font-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.cart-quantity-btn:hover {
    background: var(--color-background);
    border-color: var(--color-accent);
}

.cart-quantity-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.cart-quantity-input {
    width: 70px;
    text-align: center;
    font-weight: var(--font-semibold);
    font-size: var(--font-base);
    background: var(--color-background);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    padding: var(--space-2);
    outline: none;
    transition: all var(--transition-fast);
}

.cart-quantity-input:focus {
    border-color: var(--color-accent);
    background: var(--color-surface);
}

.cart-quantity-input.error {
    border-color: var(--color-danger);
    background: var(--color-danger-subtle);
}

.cart-item-unit {
    color: var(--color-text-secondary);
    font-size: var(--font-sm);
}

/* Empty Cart State */
.cart-empty {
    text-align: center;
    padding: var(--space-12) var(--space-4);
}

.cart-empty-icon {
    font-size: 4rem;
    margin-bottom: var(--space-4);
    opacity: 0.3;
}

.cart-empty-title {
    font-size: var(--font-xl);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.cart-empty-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

/* Cart Submit Section (Fixed Bottom) */
.cart-submit-section {
    position: fixed;
    bottom: 60px; /* Above bottom nav */
    left: 0;
    right: 0;
    background: var(--color-surface);
    padding: var(--space-4);
    border-top: 1px solid var(--color-border);
    z-index: 90;
}

@media (min-width: 1024px) {
    .cart-submit-section {
        bottom: 0;
    }
}

.cart-submit-container {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    gap: var(--space-3);
}

.cart-submit-btn {
    flex: 2;
}

.cart-clear-btn {
    flex: 1;
}

/* Cart page needs extra padding for fixed submit section */
.cart-page .user-content {
    padding-bottom: calc(70px + 80px + var(--space-4)); /* Bottom nav + submit section */
}

@media (min-width: 1024px) {
    .cart-page .user-content {
        padding-bottom: calc(80px + var(--space-4));
    }
}

/* =============================================================================
   37. Orders List Page Styles (Feature 018)
   ============================================================================= */

.orders-container {
    max-width: 800px;
    margin: 0 auto;
}

.orders-pending-alert {
    background: var(--color-warning-subtle);
    border-left: 4px solid var(--color-warning);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    font-size: var(--font-sm);
    color: #92400e;
}

.orders-filters {
    display: flex;
    gap: var(--space-2);
    overflow-x: auto;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-2);
    -webkit-overflow-scrolling: touch;
}

.orders-filter-btn {
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-size: var(--font-sm);
    white-space: nowrap;
    background: var(--color-surface);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

.orders-filter-btn:hover {
    background: var(--color-background);
    color: var(--color-text-primary);
}

.orders-filter-btn.active {
    background: var(--color-accent-subtle);
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.orders-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.order-card {
    background: var(--color-surface);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: inherit;
    display: block;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

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

.order-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-3);
}

.order-card-number {
    font-size: var(--font-lg);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
}

.order-card-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-3);
    font-size: var(--font-xs);
}

.order-meta-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.order-meta-label {
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.order-meta-value {
    font-weight: var(--font-medium);
    color: var(--color-text-primary);
}

/* Empty Orders State */
.orders-empty {
    text-align: center;
    padding: var(--space-12) var(--space-4);
}

.orders-empty-title {
    font-size: var(--font-xl);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.orders-empty-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

.orders-empty-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--color-accent-subtle);
    color: var(--color-accent);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: var(--font-medium);
    transition: all var(--transition-fast);
}

.orders-empty-link:hover {
    background: var(--color-accent);
    color: var(--color-text-inverse);
}

/* Pagination */
.orders-pagination {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-6);
}

.orders-pagination a,
.orders-pagination span {
    padding: var(--space-2) var(--space-3);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--color-text-secondary);
    font-size: var(--font-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

.orders-pagination a:hover {
    background: var(--color-background);
    color: var(--color-text-primary);
}

.orders-pagination .active {
    background: var(--color-accent-subtle);
    color: var(--color-accent);
    border-color: var(--color-accent);
}

/* =============================================================================
   38. Order Detail Page Styles (Feature 018)
   ============================================================================= */

.order-detail-container {
    max-width: 800px;
    margin: 0 auto;
}

.order-detail-header {
    background: var(--color-surface);
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-sm);
}

.order-detail-number {
    font-size: var(--font-2xl);
    font-weight: var(--font-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-4);
}

.order-detail-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
}

.order-detail-meta-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.order-detail-meta-label {
    font-size: var(--font-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.order-detail-meta-value {
    font-size: var(--font-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-primary);
}

.order-line-items {
    background: var(--color-surface);
    padding: var(--space-5);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-sm);
}

.order-line-items-title {
    font-size: var(--font-lg);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-4);
}

.order-item-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.order-item-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3);
    background: var(--color-background);
    border-radius: var(--radius-md);
}

.order-item-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.order-item-name {
    font-weight: var(--font-medium);
    color: var(--color-text-primary);
}

.order-item-barcode {
    font-size: var(--font-xs);
    color: var(--color-text-muted);
}

.order-item-quantity {
    font-weight: var(--font-semibold);
    color: var(--color-accent);
}

.order-detail-actions {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.order-detail-empty {
    text-align: center;
    padding: var(--space-8);
    color: var(--color-text-secondary);
}