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

:root {
    /* Dark mode (default) */
    --bg-primary: #0a0e27;
    --bg-secondary: rgba(255, 255, 255, 0.03);
    --bg-tertiary: rgba(255, 255, 255, 0.05);
    --text-primary: #e5e7eb;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-tertiary: rgba(255, 255, 255, 0.6);
    --border-color: rgba(255, 255, 255, 0.1);
    --accent-color: #a8b5ff;
    --accent-gradient: linear-gradient(135deg, #ffffff 0%, #a8b5ff 100%);
    --shadow: rgba(0, 0, 0, 0.3);
}

[data-theme="light"] {
    /* Light mode */
    --bg-primary: #f5f7fa;
    --bg-secondary: rgba(255, 255, 255, 0.8);
    --bg-tertiary: rgba(255, 255, 255, 0.9);
    --text-primary: #1a1f3a;
    --text-secondary: rgba(26, 31, 58, 0.8);
    --text-tertiary: rgba(26, 31, 58, 0.6);
    --border-color: rgba(26, 31, 58, 0.15);
    --accent-color: #667eea;
    --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --shadow: rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', 'Helvetica Neue', sans-serif;
    background: var(--bg-primary);
    background-image: 
        radial-gradient(at 0% 0%, rgba(120, 119, 198, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(255, 255, 255, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(120, 119, 198, 0.1) 0px, transparent 50%);
    min-height: 100vh;
    padding: 0;
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

[data-theme="light"] body {
    background-image: 
        radial-gradient(at 0% 0%, rgba(102, 126, 234, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(118, 75, 162, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(102, 126, 234, 0.05) 0px, transparent 50%);
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 30px 20px;
}

header {
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    padding: 0;
    border-radius: 20px;
    margin-bottom: 30px;
    box-shadow: 0 8px 32px var(--shadow);
    overflow: hidden;
    transition: background 0.3s ease, border-color 0.3s ease;
    opacity: 1;
    visibility: visible;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 35px;
    gap: 30px;
}

.header-title {
    flex: 1;
}

header h1 {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 6px 0;
    font-size: 1.8em;
    font-weight: 700;
    letter-spacing: -0.5px;
    text-align: left;
    transition: background 0.3s ease;
}

.subtitle {
    color: var(--text-tertiary);
    font-size: 0.9em;
    margin: 0;
    font-weight: 400;
    text-align: left;
    transition: color 0.3s ease;
}

nav {
    display: flex;
    gap: 8px;
    align-items: center;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 10px 18px;
    border-radius: 12px;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
    font-weight: 500;
    font-size: 0.9em;
    border: 1px solid transparent;
    background: var(--bg-tertiary);
    position: relative;
    overflow: hidden;
    opacity: 1;
    visibility: visible;
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.3em;
    margin-left: 8px;
    position: relative;
    overflow: hidden;
}

.theme-toggle::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(168, 181, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.theme-toggle:hover::before {
    left: 100%;
}

.theme-toggle:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(168, 181, 255, 0.2);
}

.theme-icon {
    display: block;
    line-height: 1;
    transition: transform 0.3s ease;
}

.theme-toggle:hover .theme-icon {
    transform: rotate(15deg) scale(1.1);
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(168, 181, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.nav-link:hover::before {
    left: 100%;
}

.nav-link:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-color);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(168, 181, 255, 0.2);
}

.nav-link.active {
    background: linear-gradient(135deg, rgba(168, 181, 255, 0.2) 0%, rgba(124, 138, 255, 0.15) 100%);
    border-color: var(--accent-color);
    color: var(--text-primary);
    box-shadow: 0 4px 16px rgba(168, 181, 255, 0.25);
}

[data-theme="light"] .nav-link.active {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-color: var(--accent-color);
}

.nav-link.active::before {
    display: none;
}

.nav-icon {
    font-size: 1.1em;
    line-height: 1;
    filter: grayscale(0.3);
    transition: filter 0.3s ease;
}

.nav-link:hover .nav-icon,
.nav-link.active .nav-icon {
    filter: grayscale(0);
}

.nav-text {
    position: relative;
}

/* Info Sections */
.info-sections {
    margin-bottom: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
}

.info-panel {
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    border-radius: 16px;
    box-shadow: 0 8px 32px var(--shadow);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: background 0.3s ease, border-color 0.3s ease;
}

.info-panel.warning-panel {
    border-color: rgba(255, 193, 7, 0.3);
    background: rgba(255, 251, 240, 0.05);
}

.info-header {
    background: var(--bg-tertiary);
    padding: 15px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    user-select: none;
}

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

.info-panel.warning-panel .info-header {
    background: rgba(255, 243, 205, 0.1);
}

.info-header h3 {
    margin: 0;
    font-size: 1em;
    color: var(--text-primary);
    font-weight: 600;
    transition: color 0.3s ease;
}

.info-panel.warning-panel .info-header h3 {
    color: rgba(255, 193, 7, 0.9);
}

.info-toggle {
    font-size: 1.3em;
    color: rgba(168, 181, 255, 0.8);
    font-weight: 300;
    transition: transform 0.3s ease;
    line-height: 1;
}

.info-panel.active .info-toggle {
    transform: rotate(45deg);
}

.info-content {
    padding: 20px;
    display: none;
    font-size: 0.9em;
    line-height: 1.7;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.info-panel.active .info-content {
    display: block;
}

.info-content p {
    margin-bottom: 12px;
}

.info-content p:last-child {
    margin-bottom: 0;
}

.info-content ol,
.info-content ul {
    margin: 10px 0 10px 20px;
    padding-left: 10px;
}

.info-content li {
    margin-bottom: 8px;
}

.info-content ul {
    list-style-type: disc;
    margin-left: 30px;
    margin-top: 5px;
}

.info-content code {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: monospace;
    font-size: 0.9em;
    color: var(--accent-color);
}

.info-note {
    margin-top: 12px;
    padding: 10px;
    background: var(--bg-tertiary);
    border-left: 3px solid var(--accent-color);
    border-radius: 3px;
    font-size: 0.9em;
}

.info-content a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
}

.info-content a:hover {
    text-decoration: underline;
}

.main-content {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 25px;
    align-items: start;
}

.form-panel, .preview-panel {
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 8px 32px var(--shadow);
    transition: background 0.3s ease, border-color 0.3s ease;
}

.preview-column {
    display: flex;
    flex-direction: column;
    gap: 25px;
    position: sticky;
    top: 30px;
    align-self: start;
}

.preview-panel {
    /* Inherits from form-panel, preview-panel rule above */
}

/* Car Preview Panel */
.car-preview-panel {
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 8px 32px var(--shadow);
    transition: background 0.3s ease, border-color 0.3s ease;
}

.car-preview-panel h2 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 1.6em;
    font-weight: 600;
    letter-spacing: -0.3px;
    transition: color 0.3s ease;
}

/* Site Stats Panel */
.site-stats-panel {
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: 20px;
    margin-top: 20px;
    box-shadow: 0 8px 32px var(--shadow);
}

.site-stats-panel h2 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 1.6em;
    font-weight: 600;
    letter-spacing: -0.3px;
    transition: color 0.3s ease;
}

.site-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.site-stat {
    text-align: center;
    padding: 16px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.site-stat-value {
    display: block;
    font-size: 1.8em;
    font-weight: 600;
    color: var(--accent-color);
}

.site-stat-label {
    display: block;
    font-size: 0.9em;
    color: var(--text-tertiary);
    margin-top: 4px;
}

.car-preview-container {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    overflow: hidden;
    line-height: 0;
}

#carPreviewCanvas {
    display: block;
    border-radius: 8px;
    width: 100%;
    height: auto;
}

.car-preview-error {
    text-align: center;
    color: var(--text-secondary);
    padding: 40px 20px;
}

.car-preview-error p {
    margin: 8px 0;
}

.car-preview-error code {
    background: rgba(255, 255, 255, 0.1);
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 13px;
    color: var(--accent-color);
}

.car-preview-info {
    margin-top: 15px;
    text-align: center;
    font-size: 0.9em;
    color: var(--text-secondary);
}

.car-preview-info p {
    margin: 5px 0;
}

.car-preview-info a {
    color: #00d4ff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.car-preview-info a:hover {
    color: #00b8e6;
    text-decoration: underline;
}

.form-panel h2, .preview-panel h2 {
    color: var(--text-primary);
    margin-bottom: 25px;
    font-size: 1.6em;
    font-weight: 600;
    letter-spacing: -0.3px;
    transition: color 0.3s ease;
}

.loaded-profile-name {
    margin: -15px 0 20px 0;
    padding: 8px 14px;
    font-size: 0.95em;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border-radius: 10px;
    border-left: 4px solid var(--accent-color);
}

.loaded-profile-name::before {
    content: 'Plate Profile Name: ';
    font-weight: 600;
    color: var(--accent-color);
}

.form-section {
    margin-bottom: 12px;
    padding-top: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
    transition: border-color 0.3s ease;
}

.form-section:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
}

.form-section-compact {
    padding-top: 6px;
    padding-bottom: 6px;
    margin-bottom: 8px;
}

.form-section-compact .section-label {
    margin-bottom: 4px;
}

.form-row-compact {
    gap: 12px;
    align-items: center;
}

.section-label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.85em;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s ease;
}

.form-group {
    margin-bottom: 9px;
}

.form-group-compact {
    margin-bottom: 8px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.form-row-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 6px;
}

.inline-label {
    display: block;
    margin-bottom: 4px;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.9em;
    transition: color 0.3s ease;
}

.form-group label {
    display: block;
    margin-bottom: 4px;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-group input[type="text"],
.form-group-compact input[type="text"],
.form-group input[type="range"],
.form-group-compact input[type="range"],
.form-group select,
.form-group-compact select {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 0.95em;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.form-group input[type="text"]:focus,
.form-group-compact input[type="text"]:focus,
.form-group select:focus,
.form-group-compact select:focus {
    outline: none;
    border-color: var(--accent-color);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 3px rgba(168, 181, 255, 0.1);
}

.form-group input[type="text"]::placeholder,
.form-group-compact input[type="text"]::placeholder {
    color: var(--text-tertiary);
}

.full-width {
    width: 100%;
}

/* Plate Text Input - Emphasized styling */
.plate-text-section {
    margin-bottom: 0;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
}

.plate-text-label {
    font-size: 1.2em;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--accent-color);
}

.plate-text-input {
    width: 100%;
    padding: 20px 18px;
    background: var(--bg-tertiary);
    border: 2px solid var(--accent-color);
    border-radius: 12px;
    font-size: 1.5em;
    font-weight: 600;
    letter-spacing: 2px;
    text-align: center;
    text-transform: uppercase;
    color: var(--text-primary);
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(168, 181, 255, 0.15);
}

.plate-text-input:focus {
    outline: none;
    border-color: var(--accent-color);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 4px rgba(168, 181, 255, 0.2), 0 6px 20px rgba(168, 181, 255, 0.25);
    transform: translateY(-2px);
}

.plate-text-input::placeholder {
    color: var(--text-tertiary);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.form-group input[type="text"]:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

.form-group input[type="range"],
.form-group-compact input[type="range"] {
    padding: 0;
    height: 6px;
    background: var(--border-color);
    border-radius: 10px;
    -webkit-appearance: none;
    border: none;
    transition: background 0.3s ease;
}

.form-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: linear-gradient(135deg, #a8b5ff 0%, #ffffff 100%);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(168, 181, 255, 0.4);
    transition: all 0.2s ease;
}

.form-group input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 4px 12px rgba(168, 181, 255, 0.6);
}

.form-group input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: linear-gradient(135deg, #a8b5ff 0%, #ffffff 100%);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 8px rgba(168, 181, 255, 0.4);
    transition: all 0.2s ease;
}

.form-group input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 4px 12px rgba(168, 181, 255, 0.6);
}

.color-input-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

.color-input-group-compact {
    display: flex;
    gap: 10px;
    align-items: center;
}

.color-input-group input[type="color"],
.color-input-group-compact input[type="color"] {
    width: 50px;
    height: 40px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    flex-shrink: 0;
    background: var(--bg-tertiary);
    transition: all 0.3s ease;
}

.color-input-group input[type="color"]:hover,
.color-input-group-compact input[type="color"]:hover {
    border-color: rgba(168, 181, 255, 0.5);
    transform: scale(1.05);
}

.color-input-group input[type="text"],
.color-input-group-compact input[type="text"] {
    flex: 1;
    font-family: 'SF Mono', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
}

.color-text-compact {
    min-width: 80px;
    max-width: 100px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    padding: 10px;
    border-radius: 10px;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.checkbox-label:hover {
    background: var(--bg-tertiary);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: #a8b5ff;
    border-radius: 4px;
}

.checkbox-label input[type="checkbox"]:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.checkbox-label:has(input[type="checkbox"]:disabled) {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-group small,
.form-group-compact small,
.form-note {
    display: block;
    margin-top: 4px;
    color: var(--text-tertiary);
    font-size: 0.85em;
}

.form-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 10px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
    align-items: stretch;
}

.form-actions-divider {
}

.form-actions-divider .btn-primary {
    width: 100%;
    padding: 16px 28px;
    font-size: 1.1em;
}

.action-group {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 12px;
    font-size: 0.95em;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
    font-weight: 600;
    font-family: inherit;
    opacity: 1;
    visibility: visible;
}

.btn-primary {
    background: linear-gradient(135deg, #a8b5ff 0%, #7c8aff 100%);
    color: #0a0e27;
    box-shadow: 0 4px 15px rgba(168, 181, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(168, 181, 255, 0.4);
    background: linear-gradient(135deg, #b8c5ff 0%, #8c9aff 100%);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: 6px;
    justify-content: center;
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-color);
    transform: translateY(-1px);
    color: var(--text-primary);
    box-shadow: 0 2px 8px var(--shadow);
}

.btn-icon {
    font-size: 1em;
    line-height: 1;
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.9em;
}

.btn-compact {
    padding: 10px 18px;
    font-size: 0.95em;
    min-width: 100px;
}

.btn-tiny {
    padding: 6px 12px;
    font-size: 0.85em;
}

.color-quick-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.btn-yellow {
    background-color: #FFFF00;
    color: #0a0e27;
    border: 1px solid rgba(255, 255, 0, 0.3);
    font-weight: 600;
}

.btn-yellow:hover {
    background-color: #FFEB3B;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 235, 59, 0.4);
    border-color: rgba(255, 255, 0, 0.5);
}

.btn-tinted {
    background-color: #E6E600;
    color: #0a0e27;
    border: 1px solid rgba(230, 230, 0, 0.3);
    font-weight: 600;
}

.btn-tinted:hover {
    background-color: #D4D400;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(230, 230, 0, 0.4);
    border-color: rgba(230, 230, 0, 0.5);
}

.load-input-group {
    display: flex;
    gap: 10px;
}

.load-input-group input {
    flex: 1;
}

.save-result {
    margin-top: 15px;
    padding: 15px;
    border-radius: 12px;
    background: rgba(40, 167, 69, 0.15);
    color: var(--text-primary);
    border: 1px solid rgba(40, 167, 69, 0.3);
    backdrop-filter: blur(10px);
}

.save-result.error {
    background: rgba(220, 53, 69, 0.15);
    color: var(--text-primary);
    border-color: rgba(220, 53, 69, 0.3);
}

.save-result a {
    color: var(--accent-color);
    word-break: break-all;
    text-decoration: none;
}

.save-result a:hover {
    text-decoration: underline;
}

.preview-container {
    background: var(--bg-tertiary);
    padding: 25px;
    border-radius: 16px;
    text-align: center;
    min-height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    transition: background 0.3s ease, border-color 0.3s ease;
}

.preview-container img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.loading {
    color: rgba(168, 181, 255, 0.9);
    font-weight: 600;
}

select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.preview-info {
    background: var(--bg-tertiary);
    padding: 15px;
    border-radius: 12px;
    font-size: 0.85em;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.preview-info p {
    margin: 6px 0;
}

.preview-info strong {
    color: var(--text-primary);
}

/* Gallery and History pages */
.gallery-grid, .history-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.gallery-item, .history-item {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 4px var(--shadow);
    text-align: center;
    border: 1px solid var(--border-color);
}

.gallery-item img, .history-item img {
    max-width: 100%;
    height: auto;
    border: 2px solid #e0e0e0;
    border-radius: 5px;
    margin-bottom: 10px;
}

.gallery-item h3, .history-item h3 {
    color: var(--accent-color);
    margin-bottom: 10px;
}

.gallery-item button, .history-item button {
    margin-top: 10px;
}

.history-item .timestamp {
    color: var(--text-tertiary);
    font-size: 0.9em;
    margin-top: 10px;
}

.history-empty-state {
    text-align: center;
    padding: 60px 40px;
    background: var(--bg-tertiary);
    border-radius: 20px;
    border: 2px dashed var(--border-color);
    margin-top: 20px;
}

.history-empty-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.9;
}

.history-empty-title {
    font-size: 1.5em;
    color: var(--text-primary);
    margin-bottom: 12px;
    font-weight: 600;
}

.history-empty-text {
    color: var(--text-secondary);
    font-size: 1.05em;
    line-height: 1.6;
    max-width: 360px;
    margin: 0 auto 24px;
}

.history-empty-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.history-empty-cta:hover {
    transform: translateY(-2px);
}

.history-empty-arrow {
    transition: transform 0.2s ease;
}

.history-empty-cta:hover .history-empty-arrow {
    transform: translateX(4px);
}

/* Responsive */
@media (max-width: 968px) {
    .header-content {
        flex-direction: column;
        align-items: stretch;
        padding: 20px;
    }
    
    header h1 {
        text-align: center;
        font-size: 1.6em;
    }
    
    .subtitle {
        text-align: center;
    }
    
    nav {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .nav-link {
        flex: 1;
        min-width: 120px;
        justify-content: center;
    }
    
    .main-content {
        grid-template-columns: 1fr;
    }
    
    .preview-column {
        position: static;
        gap: 20px;
    }
    
    .preview-panel {
        position: static;
    }
    
    .car-preview-panel {
        position: static;
    }
    
    .info-sections {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .action-group {
        width: 100%;
        justify-content: stretch;
    }
    
    .action-group .btn {
        flex: 1;
    }
    
    .btn {
        width: 100%;
    }
}

@media (max-width: 640px) {
    .header-content {
        padding: 15px;
    }
    
    header h1 {
        font-size: 1.4em;
    }
    
    .nav-link {
        padding: 8px 12px;
        font-size: 0.85em;
    }
    
    .nav-icon {
        font-size: 1em;
    }
}


/* File size status indicators */
.status-ok {
    color: #10b981;
    font-weight: bold;
}

.status-warning {
    color: #f59e0b;
    font-weight: bold;
}

.status-error {
    color: #ef4444;
    font-weight: bold;
}

.preview-info p {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.preview-info p strong {
    flex-shrink: 0;
}

.preview-info p span {
    text-align: right;
}

/* Template section styles */
.template-section {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.template-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.btn-template {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
}

.btn-template:hover {
    background: var(--bg-tertiary);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.btn-template:active {
    transform: translateY(0);
}

.template-icon {
    font-size: 1.5rem;
    line-height: 1;
}

.template-name {
    font-size: 0.8rem;
    font-weight: 500;
    text-align: center;
}

@media (max-width: 768px) {
    .template-buttons {
        grid-template-columns: repeat(3, 1fr);
    }

    .btn-template {
        padding: 0.6rem 0.4rem;
    }

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

    .template-name {
        font-size: 0.75rem;
    }
}