:root {
    --bg: #0f1419;
    --bg-card: #1a2332;
    --bg-hover: #243044;
    --text: #e8edf4;
    --text-muted: #8b9cb3;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent: #10b981;
    --accent-hover: #059669;
    --danger: #ef4444;
    --border: #2d3a4f;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --best: rgba(16, 185, 129, 0.15);
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }

/* Header */
.site-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text);
    text-decoration: none;
}

.logo-icon { font-size: 1.5rem; }

.main-nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.main-nav a {
    color: var(--text-muted);
    font-weight: 500;
    text-decoration: none;
    transition: color 0.2s;
}

.main-nav a:hover { color: var(--text); }

.compare-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.compare-badge {
    background: var(--primary);
    color: white;
    font-size: 0.75rem;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    min-width: 1.25rem;
    text-align: center;
}

.compare-badge:empty,
.compare-badge[data-count="0"] { display: none; }

.admin-link {
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: 8px;
}

/* Hero */
.hero {
    background: linear-gradient(135deg, #1e3a5f 0%, var(--bg) 100%);
    padding: 3rem 0;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.hero p { color: var(--text-muted); font-size: 1.1rem; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    font-family: inherit;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); text-decoration: none; }

.btn-accent { background: var(--accent); color: white; }
.btn-accent:hover { background: var(--accent-hover); text-decoration: none; }

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-outline:hover { background: var(--bg-hover); text-decoration: none; }

.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #dc2626; }

.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.8rem; }
.btn-block { width: 100%; }

/* Filters */
.filter-panel {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.filter-main {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr) auto;
    gap: 1rem;
    padding: 1.5rem;
    align-items: end;
}

.filter-search { grid-column: span 1; }

.filter-advanced {
    display: none;
    border-top: 1px solid var(--border);
    padding: 1.25rem 1.5rem 1.5rem;
    background: var(--bg);
}

.filter-advanced.open { display: block; }

.filter-advanced-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

.filter-advanced-actions {
    margin-top: 1rem;
    display: flex;
    justify-content: flex-end;
}

.filter-count-badge {
    background: var(--accent);
    color: white;
    font-size: 0.7rem;
    padding: 0.1rem 0.45rem;
    border-radius: 999px;
    margin-left: 0.25rem;
}

.active-filters {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.active-filters-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.filter-chip {
    font-size: 0.8rem;
    padding: 0.3rem 0.7rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-muted);
}

@media (max-width: 1100px) {
    .filter-main {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
}

.filter-bar {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    margin-bottom: 2rem;
    align-items: end;
}

.filter-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.filter-group input,
.filter-group select,
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.6rem 0.8rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.9rem;
}

.filter-group input:focus,
.filter-group select:focus,
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.filter-actions { display: flex; gap: 0.5rem; }

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.results-header h2 { font-size: 1.25rem; }

/* Car grid */
.car-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.car-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.car-card-image {
    position: relative;
    height: 180px;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.car-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.car-placeholder {
    font-size: 4rem;
    opacity: 0.3;
}

.car-placeholder.large { font-size: 6rem; }

.car-year {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: rgba(0,0,0,0.7);
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    font-size: 0.8rem;
}

.car-card-body { padding: 1.25rem; }

.car-card-body h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.car-card-body h3 a { color: var(--text); text-decoration: none; }
.car-card-body h3 a:hover { color: var(--primary); }

.car-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.75rem;
}

.tag {
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    background: var(--bg);
    border-radius: 6px;
    color: var(--text-muted);
}

.car-specs-preview {
    list-style: none;
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.car-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.car-price {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--accent);
}

.car-actions { display: flex; gap: 0.5rem; }

/* Car detail */
.car-detail { padding: 2rem 0 3rem; }

.back-link {
    display: inline-block;
    margin-bottom: 1.5rem;
    color: var(--text-muted);
}

.car-detail-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .car-detail-header { grid-template-columns: 1fr; }
}

.car-detail-image {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.car-detail-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.car-brand-label {
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

.car-detail-info h1 {
    font-size: 2rem;
    margin: 0.25rem 0 1rem;
}

.year-badge {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 400;
}

.car-price-large {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent);
    margin: 1rem 0;
}

.car-description {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.specs-table-wrapper {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 1.5rem;
}

.specs-table-wrapper h2 { margin-bottom: 1rem; }

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

.specs-table th,
.specs-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.specs-table th {
    width: 40%;
    color: var(--text-muted);
    font-weight: 500;
}

/* Compare */
.compare-page { padding: 2rem 0 3rem; }

.compare-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.compare-table-wrapper {
    overflow-x: auto;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 700px;
}

.compare-table th,
.compare-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.compare-table .spec-label-col,
.compare-table .spec-label {
    text-align: left;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--bg);
    position: sticky;
    left: 0;
    z-index: 1;
}

.compare-car-header {
    position: relative;
    padding: 0.5rem;
}

.compare-car-header strong { display: block; font-size: 1rem; }
.compare-car-header span { color: var(--text-muted); }
.compare-car-header small { color: var(--text-muted); font-size: 0.8rem; }

.remove-compare {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--danger);
    color: white;
    border: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
}

.best-value {
    background: var(--best);
    color: var(--accent);
    font-weight: 600;
}

.empty-col { color: var(--text-muted); }

.add-car-slot {
    display: block;
    padding: 2rem 1rem;
    color: var(--text-muted);
    border: 2px dashed var(--border);
    border-radius: 8px;
    text-decoration: none;
}

.add-car-slot:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.empty-state h2 { margin-bottom: 0.5rem; }
.empty-state p { color: var(--text-muted); margin-bottom: 1.5rem; }

/* Footer */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 1.5rem 0;
    margin-top: auto;
    color: var(--text-muted);
    font-size: 0.85rem;
    text-align: center;
}

.main-content { min-height: calc(100vh - 64px - 60px); }

/* Admin */
.admin-body {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 240px;
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 1.5rem 0;
    flex-shrink: 0;
}

.admin-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    padding: 0 1.5rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.admin-nav {
    display: flex;
    flex-direction: column;
    padding: 1rem 0;
    flex: 1;
}

.admin-nav a {
    padding: 0.75rem 1.5rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.2s;
}

.admin-nav a:hover,
.admin-nav a.active {
    background: var(--bg-hover);
    color: var(--text);
}

.admin-nav .logout-link { margin-top: auto; color: var(--danger); }

.admin-user {
    padding: 1rem 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
}

.admin-main {
    flex: 1;
    padding: 2rem;
    overflow-x: auto;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.admin-header h1 { font-size: 1.5rem; }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label { color: var(--text-muted); font-size: 0.9rem; }

.admin-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.admin-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.admin-section h2 { font-size: 1.1rem; margin-bottom: 1rem; }

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

.admin-table th,
.admin-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.admin-table th {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.85rem;
}

.actions-cell {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.inline-form { display: inline; }

.status-badge {
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
}

.status-badge.active { background: rgba(16,185,129,0.2); color: var(--accent); }
.status-badge.inactive { background: rgba(239,68,68,0.2); color: var(--danger); }

.text-center { text-align: center; }

/* Forms */
.admin-form .form-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.admin-form .form-section h3 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}

.form-group { margin-bottom: 1rem; }

.form-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.admin-two-col {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 1.5rem;
}

@media (max-width: 900px) {
    .admin-two-col { grid-template-columns: 1fr; }
    .admin-sidebar { width: 100%; }
    .admin-body { flex-direction: column; }
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.alert-error { background: rgba(239,68,68,0.15); border: 1px solid var(--danger); color: #fca5a5; }
.alert-success { background: rgba(16,185,129,0.15); border: 1px solid var(--accent); color: #6ee7b7; }

.alert ul { margin-left: 1.25rem; }

/* Login */
.login-card {
    max-width: 400px;
    margin: 10vh auto;
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header .logo-icon { font-size: 2.5rem; }
.login-header h1 { margin: 0.5rem 0 0.25rem; }
.login-header p { color: var(--text-muted); }

.login-form .form-group { margin-bottom: 1.25rem; }

.login-hint {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 1rem;
}

.login-hint code {
    background: var(--bg);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
}

.back-to-site {
    display: block;
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.compare-btn.added {
    background: var(--accent);
}

.compare-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Image upload */
.form-group-wide { grid-column: 1 / -1; }

.image-upload-area {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 1.5rem;
    align-items: start;
}

.image-preview {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    text-align: center;
}

.image-preview img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    display: block;
}

.image-preview.empty {
    padding: 2rem 1rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.preview-placeholder {
    display: block;
    font-size: 3rem;
    opacity: 0.3;
    margin-bottom: 0.5rem;
}

.remove-image-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.6rem;
    font-size: 0.8rem;
    color: var(--danger);
    cursor: pointer;
    border-top: 1px solid var(--border);
}

.upload-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.4rem;
}

.upload-controls input[type="file"] {
    width: 100%;
    padding: 0.5rem;
    background: var(--bg);
    border: 1px dashed var(--border);
    border-radius: 8px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

@media (max-width: 600px) {
    .image-upload-area { grid-template-columns: 1fr; }
}