/* =============================================================================
   style.css — Nexus Design System for Reviews Dashboard
   
   Sections:
     1. CSS Custom Properties (Design Tokens)
     2. Reset & Base
     3. Typography
     4. Layout — Sidebar + Main Content
     5. Navigation
     6. Cards & Panels
     7. Forms & Inputs
     8. Buttons
     9. Flash Messages / Alerts
    10. Tables
    11. Badges & Status Indicators
    12. Auth Pages (Login, Reset Password)
    13. Admin Management
    14. Dark Mode Overrides
    15. Responsive / Mobile
   ============================================================================= */

/* =============================================================================
   1. CSS CUSTOM PROPERTIES — Design Tokens
   ============================================================================= */
:root {
    /* --- Colors --- */
    --color-primary: #4F46E5;
    --color-primary-hover: #4338CA;
    --color-primary-light: #EEF2FF;
    --color-secondary: #0F172A;
    --color-accent: #06B6D4;

    /* --- Surfaces --- */
    --bg-body: #F8FAFC;
    --bg-card: #FFFFFF;
    --bg-sidebar: #0F172A;
    --bg-input: #FFFFFF;
    --bg-hover: #F1F5F9;

    /* --- Borders --- */
    --border-color: #E2E8F0;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-sm: 6px;

    /* --- Text --- */
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #94A3B8;
    --text-inverse: #FFFFFF;
    --text-on-primary: #FFFFFF;

    /* --- Status --- */
    --color-success: #10B981;
    --color-success-bg: #ECFDF5;
    --color-warning: #F59E0B;
    --color-warning-bg: #FFFBEB;
    --color-error: #EF4444;
    --color-error-bg: #FEF2F2;
    --color-info: #3B82F6;
    --color-info-bg: #EFF6FF;

    /* --- Shadows --- */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);

    /* --- Spacing --- */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;

    /* --- Typography --- */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;

    /* --- Sidebar --- */
    --sidebar-width: 260px;

    /* --- Transitions --- */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}


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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-body);
    min-height: 100vh;
}

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

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

img {
    max-width: 100%;
    display: block;
}


/* =============================================================================
   3. TYPOGRAPHY
   ============================================================================= */
h1, h2, h3, h4 {
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.3;
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-sm { font-size: var(--font-size-sm); }
.text-xs { font-size: var(--font-size-xs); }


/* =============================================================================
   4. LAYOUT — Sidebar + Main Content
   ============================================================================= */
.app-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    color: var(--text-inverse);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    overflow-y: auto;
    transition: transform var(--transition-normal);
}

.sidebar-header {
    padding: var(--space-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-header h2 {
    color: var(--text-inverse);
    font-size: var(--font-size-lg);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.sidebar-header .subtitle {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-md) 0;
}

.sidebar-nav .nav-section {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--space-md);
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.sidebar-nav .nav-link:hover {
    color: var(--text-inverse);
    background: rgba(255, 255, 255, 0.05);
}

.sidebar-nav .nav-link.active {
    color: var(--text-inverse);
    background: rgba(79, 70, 229, 0.15);
    border-left-color: var(--color-primary);
}

.sidebar-nav .nav-link .icon {
    width: 20px;
    text-align: center;
    font-size: var(--font-size-base);
}

.sidebar-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-footer .admin-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
}

.sidebar-footer .admin-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--text-inverse);
    flex-shrink: 0;
}

.sidebar-footer .admin-name {
    font-weight: 500;
    color: var(--text-inverse);
}

.sidebar-footer .admin-role {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: var(--space-xl);
    min-height: 100vh;
}

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

.page-header h1 {
    font-size: var(--font-size-2xl);
}


/* =============================================================================
   5. NAVIGATION — Top Bar (mobile) + Breadcrumbs
   ============================================================================= */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--bg-sidebar);
    color: var(--text-inverse);
    align-items: center;
    padding: 0 var(--space-md);
    z-index: 101;
    gap: var(--space-md);
}

.mobile-header .menu-toggle {
    background: none;
    border: none;
    color: var(--text-inverse);
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: var(--space-sm);
}

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


/* =============================================================================
   6. CARDS & PANELS
   ============================================================================= */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

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

.card-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

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

.card-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--border-color);
    background: var(--bg-body);
}


/* =============================================================================
   7. FORMS & INPUTS
   ============================================================================= */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.form-group .helper-text {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

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

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

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23475569' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.checkbox-group label {
    font-size: var(--font-size-sm);
    margin-bottom: 0;
    cursor: pointer;
}


/* =============================================================================
   8. BUTTONS
   ============================================================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 10px 20px;
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    line-height: 1.4;
    white-space: nowrap;
}

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

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

.btn-primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: var(--text-on-primary);
}

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

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

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

.btn-danger:hover {
    background: #DC2626;
}

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

.btn-success:hover {
    background: #059669;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border-color: transparent;
}

.btn-ghost:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-sm {
    padding: 6px 12px;
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: 14px 28px;
    font-size: var(--font-size-base);
}

.btn-block {
    width: 100%;
}


/* =============================================================================
   9. FLASH MESSAGES / ALERTS
   ============================================================================= */
.flash-container {
    margin-bottom: var(--space-lg);
}

.flash-message {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--space-sm);
    border-left: 4px solid;
    animation: flashSlideIn 0.3s ease;
}

@keyframes flashSlideIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.flash-message.success {
    background: var(--color-success-bg);
    color: #065F46;
    border-left-color: var(--color-success);
}

.flash-message.error {
    background: var(--color-error-bg);
    color: #991B1B;
    border-left-color: var(--color-error);
}

.flash-message.warning {
    background: var(--color-warning-bg);
    color: #92400E;
    border-left-color: var(--color-warning);
}

.flash-message.info {
    background: var(--color-info-bg);
    color: #1E40AF;
    border-left-color: var(--color-info);
}

.flash-message .flash-dismiss {
    margin-left: auto;
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    cursor: pointer;
    color: inherit;
    opacity: 0.5;
    padding: 0 var(--space-xs);
    line-height: 1;
}

.flash-message .flash-dismiss:hover {
    opacity: 1;
}


/* =============================================================================
   10. TABLES
   ============================================================================= */
.table-container {
    overflow-x: auto;
    border-radius: var(--border-radius);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

table thead th {
    padding: var(--space-md);
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-body);
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

table tbody td {
    padding: var(--space-md);
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

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

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


/* =============================================================================
   11. BADGES & STATUS INDICATORS
   ============================================================================= */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 10px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: 100px;
    white-space: nowrap;
}

.badge-success {
    background: var(--color-success-bg);
    color: #065F46;
}

.badge-error {
    background: var(--color-error-bg);
    color: #991B1B;
}

.badge-warning {
    background: var(--color-warning-bg);
    color: #92400E;
}

.badge-info {
    background: var(--color-info-bg);
    color: #1E40AF;
}

.badge-neutral {
    background: #F1F5F9;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

.status-dot.active { background: var(--color-success); }
.status-dot.inactive { background: var(--text-muted); }


/* =============================================================================
   12. AUTH PAGES — Login, Reset Password
   ============================================================================= */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg-body);
    padding: var(--space-lg);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.auth-card-header {
    padding: var(--space-2xl) var(--space-xl) var(--space-lg);
    text-align: center;
}

.auth-card-header .logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.auth-card-header p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.auth-card-body {
    padding: var(--space-lg) var(--space-xl) var(--space-2xl);
}

.auth-card-footer {
    padding: var(--space-md) var(--space-xl);
    background: var(--bg-body);
    text-align: center;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
}

.password-requirements {
    margin-top: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-body);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.password-requirements ul {
    list-style: none;
    padding: 0;
    margin-top: var(--space-sm);
}

.password-requirements li {
    padding: 2px 0;
    padding-left: 20px;
    position: relative;
}

.password-requirements li::before {
    content: "○";
    position: absolute;
    left: 0;
    color: var(--text-muted);
}

.password-requirements li.met::before {
    content: "●";
    color: var(--color-success);
}


/* =============================================================================
   13. ADMIN MANAGEMENT
   ============================================================================= */
.admin-list .admin-row {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--border-color);
}

.admin-list .admin-row:last-child {
    border-bottom: none;
}

.admin-list .admin-avatar-lg {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-primary-light);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

.admin-list .admin-details {
    flex: 1;
    min-width: 0;
}

.admin-list .admin-details .name {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
}

.admin-list .admin-details .email {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.admin-list .admin-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

/* Utility: visually hidden but accessible */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Separator */
.divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--space-xl) 0;
}


/* =============================================================================
   14. STAT CARDS
   ============================================================================= */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--space-lg);
    text-align: center;
}

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

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
}

.stat-value-sm {
    font-size: var(--font-size-lg);
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--space-xs);
}


/* =============================================================================
   15. REVIEW CARDS
   ============================================================================= */
.review-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.review-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--space-lg);
    transition: box-shadow var(--transition-fast);
}

.review-card:hover {
    box-shadow: var(--shadow-md);
}

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

.reviewer-name {
    font-weight: 600;
    font-size: var(--font-size-base);
    color: var(--text-primary);
}

.review-biz-name {
    margin-top: 2px;
}

.review-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-xs);
    flex-shrink: 0;
}

.star-rating {
    display: flex;
    gap: 1px;
    font-size: var(--font-size-lg);
    line-height: 1;
}

.star.filled {
    color: #F59E0B;
}

.star.empty {
    color: var(--border-color);
}

.review-badges {
    display: flex;
    gap: var(--space-xs);
}

.review-body {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.7;
    word-break: break-word;
}

.review-footer {
    margin-top: var(--space-md);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}


/* =============================================================================
   16. FILTER BAR
   ============================================================================= */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    align-items: flex-end;
}

.filter-group {
    flex: 1;
    min-width: 150px;
}

.filter-group label {
    display: block;
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-xs);
}

.filter-group .form-control {
    font-size: var(--font-size-sm);
    padding: 8px 12px;
}

.filter-actions {
    display: flex;
    gap: var(--space-xs);
    align-items: flex-end;
    padding-bottom: 2px;
}

.export-buttons {
    display: flex;
    gap: var(--space-xs);
}


/* =============================================================================
   PROGRESS BAR
   ============================================================================= */
.progress-bar-container {
    width: 100%;
    height: 12px;
    background: var(--bg-hover);
    border-radius: 100px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: 100px;
    transition: width 0.5s ease;
    min-width: 0;
}


/* =============================================================================
   17. TABS
   ============================================================================= */
.tab-nav {
    display: flex;
    gap: var(--space-xs);
}

.tab-btn {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    font-family: var(--font-family);
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.tab-btn.active {
    color: var(--color-primary);
    background: var(--color-primary-light);
    border-color: rgba(79, 70, 229, 0.2);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}


/* =============================================================================
   18. FILE UPLOAD AREA
   ============================================================================= */
.file-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--space-xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.file-upload-area:hover,
.file-upload-area.drag-over {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.file-upload-icon {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.file-upload-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.file-upload-link {
    color: var(--color-primary);
    font-weight: 500;
    cursor: pointer;
}

.file-upload-hint {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

.file-upload-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}

code {
    font-family: var(--font-mono);
    font-size: var(--font-size-xs);
    background: var(--bg-hover);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--text-secondary);
}


/* =============================================================================
   19. DARK MODE OVERRIDES
   ============================================================================= */
[data-theme="dark"] {
    --bg-body: #0F172A;
    --bg-card: #1E293B;
    --bg-sidebar: #020617;
    --bg-input: #1E293B;
    --bg-hover: #334155;

    --border-color: #334155;

    --text-primary: #F1F5F9;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);

    --color-primary-light: rgba(79, 70, 229, 0.15);
    --color-success-bg: rgba(16, 185, 129, 0.1);
    --color-warning-bg: rgba(245, 158, 11, 0.1);
    --color-error-bg: rgba(239, 68, 68, 0.1);
    --color-info-bg: rgba(59, 130, 246, 0.1);
}

[data-theme="dark"] .flash-message.success { color: #6EE7B7; }
[data-theme="dark"] .flash-message.error { color: #FCA5A5; }
[data-theme="dark"] .flash-message.warning { color: #FCD34D; }
[data-theme="dark"] .flash-message.info { color: #93C5FD; }

[data-theme="dark"] .badge-success { color: #6EE7B7; }
[data-theme="dark"] .badge-error { color: #FCA5A5; }
[data-theme="dark"] .badge-warning { color: #FCD34D; }
[data-theme="dark"] .badge-info { color: #93C5FD; }
[data-theme="dark"] .badge-neutral { background: #334155; color: var(--text-secondary); }

[data-theme="dark"] table thead th { background: var(--bg-body); }

[data-theme="dark"] .admin-list .admin-avatar-lg {
    background: rgba(79, 70, 229, 0.2);
}

.theme-toggle {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-lg);
    transition: color var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
}

.theme-toggle:hover {
    color: var(--text-inverse);
}


/* =============================================================================
   20. RESPONSIVE / MOBILE
   ============================================================================= */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

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

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

    .mobile-header {
        display: flex;
    }

    .main-content {
        margin-left: 0;
        padding: var(--space-md);
        padding-top: 72px; /* Below mobile header */
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .auth-card {
        max-width: 100%;
        border: none;
        box-shadow: none;
        background: var(--bg-body);
    }

    .auth-card-header {
        padding: var(--space-xl) var(--space-md) var(--space-md);
    }

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

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

    .filter-group {
        min-width: 100%;
    }

    .review-card-header {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .review-right {
        flex-direction: row;
        align-items: center;
    }

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