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

:root {
    --porsche-red: #d5001c;
    --porsche-dark-red: #a60016;
    --dark-bg: #1a1a1a;
    --dark-card: #2a2a2a;
    --dark-lighter: #333333;
    --text-light: #ffffff;
    --text-muted: #999999;
    --success: #4CAF50;
    --warning: #ffaa00;
    --danger: #ff4444;
    --border-color: #444444;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, var(--dark-bg) 0%, #2d2d2d 100%);
    color: var(--text-light);
    min-height: 100vh;
    line-height: 1.6;
}

/* Header */
.main-header {
    background: var(--dark-card);
    border-bottom: 3px solid var(--porsche-red);
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-section h1 {
    font-size: 2.2em;
    color: var(--text-light);
    margin-bottom: 5px;
}

.subtitle {
    color: var(--porsche-red);
    font-size: 1.1em;
    font-weight: 500;
}

.header-actions {
    display: flex;
    gap: 10px;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 10px;
    margin: 30px 0 20px;
    border-bottom: 2px solid var(--border-color);
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 12px 24px;
    font-size: 1.05em;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.3s;
    position: relative;
    top: 2px;
}

.tab-btn:hover {
    color: var(--text-light);
}

.tab-btn.active {
    color: var(--porsche-red);
    border-bottom-color: var(--porsche-red);
}

a.btn-secondary {
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease-in;
}

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

/* Upload Section */
.upload-section {
    margin: 40px 0;
}

.upload-box {
    background: var(--dark-card);
    padding: 50px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    border: 2px dashed var(--border-color);
    transition: all 0.3s;
}

.upload-box:hover {
    border-color: var(--porsche-red);
}

.upload-icon {
    font-size: 4em;
    margin-bottom: 20px;
}

.upload-box h2 {
    color: var(--text-light);
    margin-bottom: 10px;
}

.upload-box > p {
    color: var(--text-muted);
    margin-bottom: 30px;
}

.file-input-wrapper {
    margin: 30px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

input[type="file"] {
    display: none;
}

.file-label {
    display: inline-block;
    cursor: pointer;
}

.file-name {
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.95em;
}

.upload-options {
    margin: 25px 0;
    display: flex;
    gap: 30px;
    justify-content: center;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 0.95em;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.quick-actions {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.or-divider {
    color: var(--text-muted);
    font-size: 0.9em;
    margin-bottom: 15px;
}

/* Buttons */
.btn-primary {
    background: var(--porsche-red);
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 6px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary:hover {
    background: var(--porsche-dark-red);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(213, 0, 28, 0.3);
}

.btn-large {
    padding: 15px 50px;
    font-size: 1.1em;
}

.btn-large span {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-secondary {
    background: var(--dark-lighter);
    color: white;
    padding: 10px 20px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.95em;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: #3a3a3a;
    border-color: var(--porsche-red);
}

.btn-small {
    padding: 6px 15px;
    font-size: 0.85em;
}

.btn-link {
    background: none;
    border: none;
    color: var(--porsche-red);
    cursor: pointer;
    text-decoration: underline;
    font-size: 0.95em;
    padding: 5px;
}

.btn-link:hover {
    color: var(--porsche-dark-red);
}

.btn-icon {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-light);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 1.2em;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-icon:hover {
    background: var(--dark-lighter);
    border-color: var(--porsche-red);
}

/* Cards */
.setup-card,
.detail-card,
.issues-card {
    background: var(--dark-card);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    margin-bottom: 25px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.card-header h2 {
    color: var(--porsche-red);
    font-size: 1.6em;
}

.header-actions {
    display: flex;
    gap: 10px;
}

.card-body {
    color: var(--text-light);
}

/* Details Grid */
.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.detail-card h3 {
    color: var(--porsche-red);
    margin-bottom: 15px;
    font-size: 1.3em;
}

.detail-content {
    margin-bottom: 15px;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.detail-label {
    color: var(--text-muted);
    font-size: 0.95em;
}

.detail-value {
    color: var(--text-light);
    font-weight: 600;
}

/* Issues Grid */
.issues-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.issue-category h4 {
    color: var(--porsche-red);
    margin-bottom: 12px;
    font-size: 1.1em;
}

.issue-btn {
    background: var(--dark-lighter);
    border: 2px solid var(--border-color);
    color: white;
    padding: 15px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    margin-bottom: 10px;
}

.issue-btn:hover {
    background: #3a3a3a;
    border-color: var(--porsche-red);
    transform: translateX(5px);
}

.issue-btn.selected {
    background: var(--porsche-red);
    border-color: var(--porsche-red);
    box-shadow: 0 0 15px rgba(213, 0, 28, 0.5);
}

.issue-icon {
    font-size: 2em;
    min-width: 40px;
}

.issue-text {
    flex: 1;
}

.issue-text strong {
    display: block;
    font-size: 1.05em;
    margin-bottom: 3px;
}

.issue-text small {
    color: var(--text-muted);
    font-size: 0.85em;
}

.selected-issues-summary {
    background: var(--dark-lighter);
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Recommendations */
.recommendations {
    background: var(--dark-card);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    margin-top: 25px;
}

.recommendations h3 {
    color: var(--porsche-red);
    margin-bottom: 25px;
    font-size: 1.8em;
}

.recommendation-item {
    background: var(--dark-lighter);
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 8px;
    border-left: 5px solid var(--porsche-red);
    transition: all 0.3s;
}

.recommendation-item:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

.recommendation-item h4 {
    color: var(--text-light);
    margin-bottom: 12px;
    font-size: 1.2em;
}

.current-value {
    color: var(--text-muted);
    font-size: 0.9em;
    margin-bottom: 8px;
}

.suggested-value {
    color: var(--success);
    font-weight: bold;
    font-size: 1.05em;
    margin-bottom: 12px;
}

.explanation {
    color: #cccccc;
    line-height: 1.6;
    font-size: 0.95em;
}

.priority-high {
    border-left-color: var(--danger);
}

.priority-medium {
    border-left-color: var(--warning);
}

.priority-low {
    border-left-color: var(--success);
}

.priority-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.75em;
    font-weight: bold;
    margin-left: 10px;
    text-transform: uppercase;
}

.priority-high .priority-badge {
    background: var(--danger);
    color: white;
}

.priority-medium .priority-badge {
    background: var(--warning);
    color: #000;
}

.priority-low .priority-badge {
    background: var(--success);
    color: white;
}

/* Multi-issue recommendations */
.recommendations-summary {
    color: var(--text-muted);
    font-size: 0.9em;
    margin-bottom: 15px;
}

.multi-issue-summary {
    color: var(--porsche-red);
    font-weight: 500;
}

.multi-issue-badge {
    display: inline-block;
    padding: 3px 8px;
    margin-left: 8px;
    border-radius: 12px;
    font-size: 0.7em;
    font-weight: bold;
    background: linear-gradient(135deg, var(--porsche-red), #ff6b6b);
    color: white;
    vertical-align: middle;
}

.recommendation-item.multi-issue {
    border-left-width: 5px;
    border-image: linear-gradient(to bottom, var(--porsche-red), #ff6b6b, var(--porsche-red)) 1;
    background: linear-gradient(135deg, var(--dark-lighter) 0%, rgba(213, 0, 28, 0.05) 100%);
}

.addresses-issues {
    font-size: 0.85em;
    color: var(--text-muted);
    margin: 8px 0;
    padding: 6px 10px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 4px;
    border-left: 2px solid var(--border-color);
}

/* Compare Section */
.compare-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 30px;
    align-items: start;
    margin: 30px 0;
}

.compare-upload {
    background: var(--dark-card);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
}

.compare-divider {
    display: flex;
    align-items: center;
    padding-top: 60px;
}

.vs-badge {
    background: var(--porsche-red);
    color: white;
    padding: 15px 25px;
    border-radius: 50%;
    font-weight: bold;
    font-size: 1.5em;
}

.file-label-compare {
    display: inline-block;
    background: var(--porsche-red);
    color: white;
    padding: 12px 30px;
    border-radius: 6px;
    cursor: pointer;
    margin: 15px 0;
    transition: all 0.3s;
}

.file-label-compare:hover {
    background: var(--porsche-dark-red);
}

.setup-preview {
    margin-top: 20px;
    text-align: left;
    color: var(--text-muted);
    font-size: 0.9em;
}

.comparison-results {
    margin-top: 30px;
}

.skin-editor {
    background: radial-gradient(circle at top right, rgba(213,0,28,0.25), transparent 45%),
        linear-gradient(180deg, rgba(255,255,255,0.03), rgba(20,20,20,0.55));
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 45px rgba(0,0,0,0.35);
    margin-bottom: 40px;
}

.skin-editor-intro {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.skin-editor-intro h2 {
    color: var(--text-light);
    font-size: 2em;
    margin-bottom: 8px;
}

.skin-editor-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}

.skin-canvas-panel {
    background: rgba(255,255,255,0.02);
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.06);
    padding: 20px;
    box-shadow: inset 0 0 20px rgba(0,0,0,0.35);
}

.canvas-shell {
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.08);
}

#skinCanvas {
    width: 100%;
    height: auto;
    display: block;
    background: #080808;
    border-radius: 14px;
}

.canvas-hint {
    position: absolute;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    color: rgba(255,255,255,0.65);
    font-size: 1.1em;
    text-align: center;
    pointer-events: none;
    transition: opacity 0.3s;
}

.skin-visibility {
    display: flex;
    justify-content: space-between;
    padding: 15px 0 0;
    color: var(--text-muted);
    font-size: 0.9em;
}

.skin-tool-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skin-tool-card {
    background: rgba(0,0,0,0.4);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 10px 25px rgba(0,0,0,0.35);
}

.skin-tool-card h3 {
    color: var(--porsche-red);
    margin-bottom: 12px;
}

.tool-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.skin-tool-card .tool-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 120px;
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.2);
    background: transparent;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.95em;
}

.skin-tool-card .tool-btn.active {
    background: var(--porsche-red);
    border-color: var(--porsche-red);
    color: white;
}

.skin-tool-card input[type="range"] {
    flex: 1;
    min-width: 120px;
}

.skin-tool-card input[type="text"],
.skin-tool-card input[type="number"],
.skin-tool-card select {
    width: 100%;
    padding: 8px 10px;
    border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.2);
    background: rgba(0,0,0,0.3);
    color: white;
}

.skin-layer-list {
    max-height: 220px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.skin-layer-entry {
    background: rgba(255,255,255,0.04);
    border-radius: 8px;
    padding: 10px 12px;
    border: 1px solid rgba(255,255,255,0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.skin-layer-entry span {
    font-size: 0.95em;
    color: var(--text-light);
}

.skin-layer-actions {
    display: flex;
    gap: 6px;
}

.skin-layer-actions button {
    border: none;
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 0.75em;
    cursor: pointer;
    transition: all 0.2s;
}

.skin-layer-actions button.toggle-btn {
    background: rgba(255,255,255,0.1);
    color: white;
}

.skin-layer-actions button.remove-btn {
    background: rgba(255,68,68,0.15);
    color: #ff7878;
}

.skin-editor-info {
    margin-top: 25px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 12px;
    padding: 20px;
    color: var(--text-light);
    box-shadow: inset 0 2px 8px rgba(0,0,0,0.35);
}

.skin-editor-info h3 {
    color: var(--porsche-red);
    margin-bottom: 10px;
}

.skin-editor-info ol {
    padding-left: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skin-editor-info code {
    background: rgba(255,255,255,0.08);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.95em;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--dark-card);
    border-radius: 10px;
    overflow: hidden;
}

.comparison-table th {
    background: var(--porsche-red);
    color: white;
    padding: 15px;
    text-align: left;
}

.comparison-table td {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table tr:hover {
    background: var(--dark-lighter);
}

.diff-highlight {
    background: rgba(255, 170, 0, 0.2);
    padding: 2px 6px;
    border-radius: 3px;
}

/* Database Section */
.database-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.database-actions {
    display: flex;
    gap: 15px;
}

.search-input {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    color: var(--text-light);
    padding: 10px 15px;
    border-radius: 6px;
    font-size: 0.95em;
    width: 250px;
}

.search-input:focus {
    outline: none;
    border-color: var(--porsche-red);
}

.filter-select {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    color: var(--text-light);
    padding: 10px 15px;
    border-radius: 6px;
    font-size: 0.95em;
    cursor: pointer;
}

.setups-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.setup-item-card {
    background: var(--dark-card);
    padding: 20px;
    border-radius: 10px;
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s;
}

.setup-item-card:hover {
    border-color: var(--porsche-red);
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.4);
}

.setup-item-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
}

.setup-item-title {
    font-weight: 600;
    color: var(--text-light);
}

.setup-item-track {
    color: var(--porsche-red);
    font-size: 0.9em;
}

.setup-item-meta {
    color: var(--text-muted);
    font-size: 0.85em;
}

.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-muted);
}

.empty-icon {
    font-size: 5em;
    margin-bottom: 20px;
    opacity: 0.5;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    animation: fadeIn 0.3s;
}

.modal.active {
    display: block;
}

.modal-content {
    background-color: var(--dark-card);
    margin: 5% auto;
    padding: 40px;
    border-radius: 15px;
    max-width: 700px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
    animation: slideDown 0.3s;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.close {
    color: var(--text-muted);
    float: right;
    font-size: 35px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s;
}

.close:hover {
    color: var(--porsche-red);
}

.help-content, .about-content {
    color: var(--text-light);
    line-height: 1.8;
}

.help-content h3, .about-content h3 {
    color: var(--porsche-red);
    margin: 25px 0 15px;
}

.help-content ul, .about-content ul {
    margin-left: 20px;
    margin-bottom: 15px;
}

.help-content li, .about-content li {
    margin-bottom: 8px;
}

/* Utility Classes */
.help-text {
    color: var(--text-muted);
    font-size: 0.95em;
    margin-bottom: 15px;
}

.loading {
    text-align: center;
    padding: 60px;
    color: var(--text-muted);
    font-size: 1.2em;
}

.loading::after {
    content: '...';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

.error {
    background: var(--danger);
    color: white;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    border-left: 5px solid #cc0000;
}

.success {
    background: var(--success);
    color: white;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
}

/* Canvas Sizing */
canvas {
    max-width: 100% !important;
    max-height: 250px !important;
    height: auto !important;
    width: auto !important;
    margin: 15px auto;
    display: block;
}

.detail-card canvas {
    margin-top: 20px;
}

/* Footer */
.app-footer {
    margin: 40px 0 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85em;
    letter-spacing: 0.02em;
}

.app-footer .footer-label {
    text-transform: uppercase;
    font-size: 0.75em;
    letter-spacing: 0.12em;
    margin-right: 8px;
}

.app-footer .footer-version {
    font-variant-numeric: tabular-nums;
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    padding: 2px 8px;
    border-radius: 999px;
}

/* Auth + Account */
.auth-page {
    display: flex;
    justify-content: center;
    padding: 40px 0 80px;
}

.auth-card,
.account-card {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 40px;
    width: min(620px, 100%);
    box-shadow: 0 8px 20px rgba(0,0,0,0.35);
}

.auth-subtitle {
    color: var(--text-muted);
    margin-bottom: 20px;
}

.auth-error {
    background: rgba(255, 68, 68, 0.15);
    border: 1px solid var(--danger);
    color: var(--text-light);
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.auth-success {
    background: rgba(76, 175, 80, 0.15);
    border: 1px solid var(--success);
    color: var(--text-light);
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.auth-form {
    display: grid;
    gap: 16px;
}

.form-field {
    display: grid;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.95em;
}

.form-input {
    background: var(--dark-lighter);
    border: 1px solid var(--border-color);
    color: var(--text-light);
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 1em;
}

.form-input:focus {
    outline: none;
    border-color: var(--porsche-red);
}

.form-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.auth-links {
    margin-top: 18px;
    color: var(--text-muted);
    display: flex;
    gap: 8px;
}

.auth-links a {
    color: var(--text-light);
}

.account-detail {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-light);
}

.account-section {
    margin-top: 24px;
}

.account-section h3 {
    margin-bottom: 8px;
}

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

.plan-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.plan-card {
    background: var(--dark-lighter);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 24px;
    display: grid;
    gap: 12px;
    position: relative;
}

.plan-card.highlight {
    border-color: var(--porsche-red);
    box-shadow: 0 0 0 1px rgba(213, 0, 28, 0.4), 0 10px 20px rgba(0,0,0,0.3);
}

.plan-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--porsche-red);
    color: #fff;
    font-size: 0.7em;
    padding: 4px 8px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.plan-price {
    font-size: 2em;
    color: var(--text-light);
    margin: 0;
}

.plan-price span {
    font-size: 0.5em;
    color: var(--text-muted);
}

.plan-list {
    list-style: none;
    padding: 0;
    margin: 0;
    color: var(--text-muted);
    display: grid;
    gap: 8px;
}

.plan-note {
    margin-top: 24px;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 1200px) {
    .details-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }

    .skin-editor-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
    }

    .tabs {
        flex-direction: column;
    }

    .tab-btn {
        border-bottom: none;
        border-left: 3px solid transparent;
    }

    .tab-btn.active {
        border-left-color: var(--porsche-red);
    }

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

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

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

    .compare-divider {
        padding-top: 0;
    }

    .upload-box {
        padding: 30px 20px;
    }

    .skin-editor {
        padding: 25px;
    }

    .skin-editor-intro {
        flex-direction: column;
        align-items: flex-start;
    }

    .skin-editor-grid {
        grid-template-columns: 1fr;
    }

    .skin-tool-panel {
        order: 2;
    }
}