/**
 * Admin Dashboard Styles
 */

:root {
    --primary-color: #0d6efd;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
}

body {
    background-color: #f8f9fa;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    transition: background-color 0.3s, color 0.3s;
}

/* Dark Theme - Multiple Color Palettes */
body.dark-theme {
    min-height: 100vh;
    transition: background-color 0.3s, color 0.3s;
}

/* Theme 1: Neutral Gray (Default) */
body.dark-theme[data-theme="neutral"],
body.dark-theme:not([data-theme]) {
    --bg-primary: #1e1e1e;
    --bg-secondary: #252526;
    --bg-tertiary: #2d2d30;
    --bg-hover: #323233;
    --bg-alt: #2a2a2a;
    --border: #3e3e42;
    --border-hover: #464647;
    --text-primary: #d4d4d4;
    --text-secondary: #cccccc;
    --text-muted: #858585;
    --text-heading: #ffffff;
    --accent-primary: #569cd6;
    --accent-success: #89d185;
    background: var(--bg-primary);
    color: var(--text-primary);
}

/* Theme 2: Warm Dark (Brown/Amber) */
body.dark-theme[data-theme="warm"] {
    --bg-primary: #1f1b16;
    --bg-secondary: #2a241f;
    --bg-tertiary: #332d26;
    --bg-hover: #3a342c;
    --bg-alt: #2f2922;
    --border: #4a4238;
    --border-hover: #554c41;
    --text-primary: #e8dcc6;
    --text-secondary: #d4c4a8;
    --text-muted: #9d8e7a;
    --text-heading: #f5ead8;
    --accent-primary: #d4a574;
    --accent-success: #a8c48a;
    background: var(--bg-primary);
    color: var(--text-primary);
}

/* Theme 3: Cool Slate (Slate/Charcoal) */
body.dark-theme[data-theme="slate"] {
    --bg-primary: #1e293b;
    --bg-secondary: #273548;
    --bg-tertiary: #334155;
    --bg-hover: #3c4a61;
    --bg-alt: #2d3a4d;
    --border: #475569;
    --border-hover: #52667a;
    --text-primary: #cbd5e1;
    --text-secondary: #b8c5d4;
    --text-muted: #94a3b8;
    --text-heading: #f1f5f9;
    --accent-primary: #7c9bc4;
    --accent-success: #86b3a8;
    background: var(--bg-primary);
    color: var(--text-primary);
}

/* Theme 4: Forest Green (Dark with Green Accents) */
body.dark-theme[data-theme="forest"] {
    --bg-primary: #1a1f1c;
    --bg-secondary: #232825;
    --bg-tertiary: #2d332f;
    --bg-hover: #353b37;
    --bg-alt: #282e2a;
    --border: #3d4a42;
    --border-hover: #46554c;
    --text-primary: #d4e4d4;
    --text-secondary: #c4d4c4;
    --text-muted: #8fa08f;
    --text-heading: #e8f4e8;
    --accent-primary: #6fb87f;
    --accent-success: #7fc89f;
    background: var(--bg-primary);
    color: var(--text-primary);
}

/* Theme 5: Deep Purple (Dark with Purple Accents) */
body.dark-theme[data-theme="purple"] {
    --bg-primary: #1e1a24;
    --bg-secondary: #27222f;
    --bg-tertiary: #312b3a;
    --bg-hover: #3a3443;
    --bg-alt: #2c2635;
    --border: #4a4255;
    --border-hover: #554d66;
    --text-primary: #e4d4e8;
    --text-secondary: #d4c4d8;
    --text-muted: #9d8da1;
    --text-heading: #f0e4f4;
    --accent-primary: #a78bfa;
    --accent-success: #86b3a8;
    background: var(--bg-primary);
    color: var(--text-primary);
}

/* Theme 6: Ocean Blue (Dark with Teal/Blue Accents) */
body.dark-theme[data-theme="ocean"] {
    --bg-primary: #1a1f2e;
    --bg-secondary: #232836;
    --bg-tertiary: #2d3440;
    --bg-hover: #353c4a;
    --bg-alt: #282e3c;
    --border: #3d4755;
    --border-hover: #465260;
    --text-primary: #d4e4f4;
    --text-secondary: #c4d4e4;
    --text-muted: #8fa0b0;
    --text-heading: #e8f4ff;
    --accent-primary: #5fb3d4;
    --accent-success: #7fc8a8;
    background: var(--bg-primary);
    color: var(--text-primary);
}

/* Common Dark Theme Styles */
body.dark-theme .card {
    background: var(--bg-secondary);
    color: var(--text-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    transition: all 0.2s ease;
}

body.dark-theme .card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    border-color: var(--border-hover);
}

body.dark-theme .card-header {
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    font-weight: 600;
}

body.dark-theme .card-body {
    background: transparent;
}

body.dark-theme .table {
    color: var(--text-primary) !important;
    border-collapse: separate;
    border-spacing: 0;
    background-color: transparent !important;
}

body.dark-theme .table thead th {
    background: var(--bg-tertiary) !important;
    border-bottom: 1px solid var(--border) !important;
    color: var(--text-secondary) !important;
    font-weight: 600;
    padding: 1rem;
}

body.dark-theme .table tbody {
    background-color: transparent !important;
}

body.dark-theme .table tbody tr {
    border-color: var(--border) !important;
    background-color: var(--bg-secondary) !important;
    transition: background-color 0.15s ease;
    color: var(--text-primary) !important;
}

body.dark-theme .table tbody tr:nth-child(even) {
    background-color: var(--bg-alt) !important;
}

body.dark-theme .table.table-striped tbody tr:nth-child(even) {
    background-color: var(--bg-alt) !important;
}

body.dark-theme .table.table-striped tbody tr:nth-child(odd) {
    background-color: var(--bg-secondary) !important;
}

body.dark-theme .table tbody tr:hover {
    background-color: var(--bg-hover) !important;
}

body.dark-theme .table-sm {
    font-size: 0.875rem;
    background-color: transparent !important;
}

body.dark-theme .table-sm thead th {
    background: var(--bg-tertiary) !important;
    border-bottom: 1px solid var(--border) !important;
    color: var(--text-secondary) !important;
    font-weight: 600;
    padding: 0.75rem;
}

body.dark-theme .table-sm tbody {
    background-color: transparent !important;
}

body.dark-theme .table-sm tbody tr {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

body.dark-theme .table-sm tbody tr:nth-child(even) {
    background-color: var(--bg-alt) !important;
}

body.dark-theme .table-sm tbody td {
    border-color: var(--border) !important;
    padding: 0.75rem;
    color: var(--text-primary) !important;
    background-color: transparent !important;
}

/* Dark theme pagination and page info */
body.dark-theme #pageInfo {
    color: var(--text-primary);
}

body.dark-theme .text-center {
    color: var(--text-primary);
}

/* Ensure all text elements have proper color in dark theme */
body.dark-theme p,
body.dark-theme span:not(.badge):not(.bi) {
    color: var(--text-primary);
}

body.dark-theme .card-body p,
body.dark-theme .card-body span {
    color: var(--text-primary);
}

body.dark-theme .card-body {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

body.dark-theme .table-responsive {
    background-color: transparent !important;
}

body.dark-theme .text-center {
    color: var(--text-primary) !important;
}

/* Dark theme modals */
body.dark-theme .modal-content {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border) !important;
    color: var(--text-primary) !important;
}

body.dark-theme .modal-header {
    background: var(--bg-tertiary) !important;
    border-bottom: 1px solid var(--border) !important;
    color: var(--text-primary) !important;
}

body.dark-theme .modal-header .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

body.dark-theme .modal-body {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

body.dark-theme .modal-footer {
    background: var(--bg-secondary) !important;
    border-top: 1px solid var(--border) !important;
}

body.dark-theme .modal-title {
    color: var(--text-heading) !important;
}

/* Dark theme form labels */
body.dark-theme .form-label {
    color: var(--text-primary) !important;
}

body.dark-theme .form-text,
body.dark-theme small.text-muted {
    color: var(--text-muted) !important;
}

/* Dark theme form switches */
body.dark-theme .form-check-label {
    color: var(--text-primary) !important;
}

body.dark-theme .form-check-input {
    background-color: var(--bg-tertiary);
    border-color: var(--border);
}

body.dark-theme .form-check-input:checked {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
}

body.dark-theme .form-check-input:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 0.2rem rgba(111, 184, 127, 0.25);
}

/* Override Bootstrap table defaults in dark theme */
body.dark-theme .table.table-striped > tbody > tr:nth-of-type(odd) > td,
body.dark-theme .table.table-striped > tbody > tr:nth-of-type(odd) > th {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

body.dark-theme .table.table-striped > tbody > tr:nth-of-type(even) > td,
body.dark-theme .table.table-striped > tbody > tr:nth-of-type(even) > th {
    background-color: var(--bg-alt) !important;
    color: var(--text-primary) !important;
}

body.dark-theme .table.table-hover > tbody > tr:hover > td,
body.dark-theme .table.table-hover > tbody > tr:hover > th {
    background-color: var(--bg-hover) !important;
    color: var(--text-primary) !important;
}

/* Ensure all table cells have dark backgrounds */
body.dark-theme .table td,
body.dark-theme .table th {
    background-color: transparent !important;
}

body.dark-theme .table tbody td,
body.dark-theme .table tbody th {
    color: var(--text-primary) !important;
}

body.dark-theme .table tbody td {
    border-color: var(--border) !important;
    padding: 0.875rem 1rem;
    color: var(--text-primary) !important;
    background-color: transparent !important;
}

body.dark-theme .form-control,
body.dark-theme .form-select {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border) !important;
    color: var(--text-primary) !important;
    transition: all 0.2s ease;
}

body.dark-theme .form-control::placeholder {
    color: var(--text-muted) !important;
    opacity: 0.6;
}

body.dark-theme .form-control:focus,
body.dark-theme .form-select:focus {
    background: var(--bg-tertiary);
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 0.2rem rgba(86, 156, 214, 0.2);
    color: var(--text-heading);
}

/* Theme-specific focus shadows */
body.dark-theme[data-theme="warm"] .form-control:focus,
body.dark-theme[data-theme="warm"] .form-select:focus {
    box-shadow: 0 0 0 0.2rem rgba(212, 165, 116, 0.2);
}

body.dark-theme[data-theme="slate"] .form-control:focus,
body.dark-theme[data-theme="slate"] .form-select:focus {
    box-shadow: 0 0 0 0.2rem rgba(124, 155, 196, 0.2);
}

body.dark-theme[data-theme="forest"] .form-control:focus,
body.dark-theme[data-theme="forest"] .form-select:focus {
    box-shadow: 0 0 0 0.2rem rgba(111, 184, 127, 0.2);
}

body.dark-theme[data-theme="purple"] .form-control:focus,
body.dark-theme[data-theme="purple"] .form-select:focus {
    box-shadow: 0 0 0 0.2rem rgba(167, 139, 250, 0.2);
}

body.dark-theme[data-theme="ocean"] .form-control:focus,
body.dark-theme[data-theme="ocean"] .form-select:focus {
    box-shadow: 0 0 0 0.2rem rgba(95, 179, 212, 0.2);
}

body.dark-theme .text-muted {
    color: var(--text-muted) !important;
}

body.dark-theme .stat-card {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: all 0.2s ease;
}

body.dark-theme .stat-card:hover {
    background: var(--bg-tertiary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

body.dark-theme .stat-card h3 {
    color: var(--text-heading);
    font-weight: 700;
}

body.dark-theme .stat-card h6 {
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

body.dark-theme .stat-icon {
    opacity: 0.5;
}

/* Theme Toggle Switch */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-right: 15px;
    cursor: pointer;
}

.theme-toggle-switch {
    position: relative;
    width: 50px;
    height: 26px;
    background-color: #ccc;
    border-radius: 13px;
    transition: background-color 0.3s;
}

body.dark-theme .theme-toggle-switch {
    background-color: #4CAF50;
}

.theme-toggle-switch::before {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    left: 2px;
    top: 2px;
    background-color: white;
    border-radius: 50%;
    transition: transform 0.3s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

body.dark-theme .theme-toggle-switch::before {
    transform: translateX(24px);
}

.theme-toggle-label {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.9);
    user-select: none;
}

/* Login Page */
.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-page .card {
    border: none;
    border-radius: 10px;
}

/* Navigation */
.navbar-brand {
    font-weight: bold;
    font-size: 1.25rem;
}

.navbar {
    min-height: 56px;
}

.navbar-nav {
    align-items: center;
}

.navbar-nav .nav-link {
    display: flex;
    align-items: center;
    padding: 0.5rem 1rem;
    white-space: nowrap;
}

.navbar-nav .nav-link i {
    font-size: 1rem;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.2em;
    flex-shrink: 0;
}

.navbar-nav .nav-link span {
    line-height: 1.5;
}

/* Stat Cards */
.stat-card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.stat-icon {
    font-size: 2.5rem;
    opacity: 0.3;
}

.stat-card h3 {
    font-size: 2rem;
    font-weight: bold;
}

.stat-card h6 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Cards */
.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: #fff;
    border-bottom: 2px solid #f0f0f0;
    font-weight: 600;
    padding: 1rem 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* Tables */
.table {
    margin-bottom: 0;
}

.table thead th {
    border-bottom: 2px solid #dee2e6;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
    color: #6c757d;
}

.table tbody tr {
    transition: background-color 0.2s;
}

.table tbody tr:hover {
    background-color: #f8f9fa;
}

/* Badges */
.badge {
    padding: 0.35em 0.65em;
    font-weight: 500;
}

/* Dark theme badges */
body.dark-theme .badge.bg-info {
    background-color: var(--accent-primary) !important;
    color: var(--bg-primary);
}

body.dark-theme .badge.bg-warning {
    background-color: #f0ad4e !important;
    color: var(--bg-primary);
}

body.dark-theme .badge.bg-danger {
    background-color: #d9534f !important;
    color: #ffffff;
}

/* Forms */
.form-control, .form-select {
    border-radius: 5px;
    border: 1px solid #ced4da;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* Buttons */
.btn {
    border-radius: 5px;
    font-weight: 500;
    padding: 0.5rem 1rem;
}

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

.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
}

/* Dark theme buttons */
body.dark-theme .btn-outline-primary {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

body.dark-theme .btn-outline-primary:hover {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--bg-primary);
}

body.dark-theme .btn-outline-primary:disabled {
    border-color: var(--border);
    color: var(--text-muted);
    opacity: 0.5;
}

/* Charts */
canvas {
    max-height: 400px;
}

/* Loading States */
.text-center {
    padding: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
    .stat-card h3 {
        font-size: 1.5rem;
    }
    
    .stat-icon {
        font-size: 2rem;
    }
    
    .card-body {
        padding: 1rem;
    }
}

/* Utilities */
.text-muted {
    color: #6c757d !important;
}

.shadow {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;
}

.shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;
}

/* Dark theme dropdown menu */
body.dark-theme .dropdown-menu {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

body.dark-theme .dropdown-item {
    color: var(--text-primary);
    transition: background-color 0.15s ease;
}

body.dark-theme .dropdown-item:hover {
    background-color: var(--bg-hover);
    color: var(--text-heading);
}

/* Dark theme headings */
body.dark-theme h1,
body.dark-theme h2,
body.dark-theme h3,
body.dark-theme h4,
body.dark-theme h5,
body.dark-theme h6 {
    color: var(--text-heading);
}

/* Dark theme badges */
body.dark-theme .badge {
    font-weight: 600;
}

/* Gender badges - maintain blue and green colors in dark mode */
body.dark-theme .badge.bg-primary {
    background-color: #0d6efd !important; /* Bootstrap primary blue */
    color: #ffffff !important;
}

body.dark-theme .badge.bg-success {
    background-color: #198754 !important; /* Bootstrap success green */
    color: #ffffff !important;
}

/* Dark theme buttons */
body.dark-theme .btn-primary {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--bg-primary);
    font-weight: 600;
}

body.dark-theme .btn-primary:hover {
    opacity: 0.9;
    filter: brightness(0.95);
}

/* Dark theme navbar - Forest Green */
body.dark-theme .navbar {
    background: linear-gradient(135deg, #1a1f1c 0%, #232825 100%) !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

body.dark-theme .navbar .nav-link {
    color: var(--text-secondary) !important;
}

body.dark-theme .navbar .nav-link:hover,
body.dark-theme .navbar .nav-link.active {
    color: var(--text-heading) !important;
    background-color: rgba(111, 184, 127, 0.2) !important;
}

/* Ensure all nav-link icons (including theme toggle) are aligned consistently */
.navbar-nav .nav-link i.bi,
.navbar-nav .nav-link #themeIcon {
    font-size: 1rem;
    line-height: 1;
    display: inline-block;
    vertical-align: middle;
    width: 1em;
    height: 1em;
}

/* Ensure theme toggle nav-link matches other nav-links exactly */
.navbar-nav .nav-link:has(#themeIcon) {
    padding: 0.5rem 1rem;
}

/* Dark theme container */
body.dark-theme .container-fluid {
    background: transparent;
}


/* Dark theme charts background */
body.dark-theme canvas {
    background: var(--bg-secondary);
    border-radius: 4px;
}

/* Dark theme category cards */
body.dark-theme .card.border-primary {
    border-color: var(--border) !important;
}

body.dark-theme .card.border-primary .card-header {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

body.dark-theme .card.border-primary .card-body {
    background: var(--bg-secondary);
}

/* Category header readability */
.category-header-gradient {
    position: relative;
}

.category-header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.5) 100%);
    pointer-events: none;
    border-radius: 10px 10px 0 0;
    z-index: 1;
}

/* Custom color classes for category headers */
.bg-purple {
    background-color: #6f42c1 !important;
}

.bg-indigo {
    background-color: #6610f2 !important;
}

/* Category header styles */
.card-header {
    border-radius: 10px 10px 0 0 !important;
}

/* Theme Selector Dropdown */
.theme-selector {
    position: relative;
    display: inline-block;
    margin-right: 15px;
}

.theme-selector-btn {
    background: transparent;
    border: 1px solid #dee2e6;
    color: #495057;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.theme-selector-btn:hover {
    background: #f8f9fa;
    border-color: #adb5bd;
    color: #212529;
}

body.dark-theme .theme-selector-btn {
    border-color: var(--border);
    color: var(--text-secondary);
}

body.dark-theme .theme-selector-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-hover);
    color: var(--text-heading);
}

.theme-options {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 5px;
    background: #ffffff;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    min-width: 180px;
    z-index: 1050;
    display: none;
    padding: 8px 0;
}

body.dark-theme .theme-options {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.theme-options.show {
    display: block;
}

.theme-option {
    padding: 10px 16px;
    cursor: pointer;
    color: #495057;
    transition: background-color 0.15s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.theme-option:hover {
    background-color: #f8f9fa;
}

.theme-option.active {
    background-color: #e9ecef;
    color: #212529;
    font-weight: 600;
}

body.dark-theme .theme-option {
    color: var(--text-primary);
}

body.dark-theme .theme-option:hover {
    background-color: var(--bg-hover);
}

body.dark-theme .theme-option.active {
    background-color: var(--bg-hover);
    color: var(--text-heading);
    font-weight: 600;
}

.theme-preview {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    flex-shrink: 0;
}

.theme-option[data-theme="neutral"] .theme-preview {
    background: linear-gradient(135deg, #1e1e1e 0%, #252526 50%, #569cd6 50%);
}

.theme-option[data-theme="warm"] .theme-preview {
    background: linear-gradient(135deg, #1f1b16 0%, #2a241f 50%, #d4a574 50%);
}

.theme-option[data-theme="slate"] .theme-preview {
    background: linear-gradient(135deg, #1e293b 0%, #273548 50%, #7c9bc4 50%);
}

.theme-option[data-theme="forest"] .theme-preview {
    background: linear-gradient(135deg, #1a1f1c 0%, #232825 50%, #6fb87f 50%);
}

.theme-option[data-theme="purple"] .theme-preview {
    background: linear-gradient(135deg, #1e1a24 0%, #27222f 50%, #a78bfa 50%);
}

.theme-option[data-theme="ocean"] .theme-preview {
    background: linear-gradient(135deg, #1a1f2e 0%, #232836 50%, #5fb3d4 50%);
}