:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary: #475569;
    --secondary-hover: #334155;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --success: #10b981;
    --warning: #f59e0b;
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
}

/* Navbar */
.navbar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 50;
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 1.5rem;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--text-main);
    white-space: nowrap;
}

.logo-icon {
    font-size: 1.6rem;
}

.navbar-search {
    display: flex;
    align-items: center;
    position: relative;
    max-width: 320px;
    width: 100%;
}

.navbar-search-input {
    width: 100%;
    padding: 0.45rem 2.2rem 0.45rem 0.85rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-family: inherit;
    background: #f1f5f9;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.navbar-search-input:focus {
    outline: none;
    background: #fff;
    border-color: var(--primary);
}

.navbar-search-btn {
    position: absolute;
    right: 0.5rem;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    opacity: 0.6;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: color 0.2s, background-color 0.2s;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--primary);
    background-color: #eff6ff;
}

.user-pill {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: #f1f5f9;
    padding: 0.3rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
}

.user-role-badge {
    padding: 0.15rem 0.45rem;
    border-radius: 9999px;
    font-size: 0.7rem;
    text-transform: uppercase;
}

.badge-admin {
    background-color: #fee2e2;
    color: #991b1b;
}

.badge-user {
    background-color: #e0e7ff;
    color: #3730a3;
}

.nav-link-logout {
    text-decoration: none;
    opacity: 0.7;
    margin-left: 0.25rem;
    transition: opacity 0.2s;
}

.nav-link-logout:hover {
    opacity: 1;
}

/* Plaque d'immatriculation style FR */
.license-plate {
    display: inline-flex;
    align-items: center;
    background: #ffffff;
    border: 2px solid #0f172a;
    border-radius: 4px;
    overflow: hidden;
    font-family: 'Plus Jakarta Sans', monospace;
    font-weight: 800;
    box-shadow: var(--shadow-sm);
}

.plate-country {
    background: #003399;
    color: #ffd700;
    padding: 0.2rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
}

.plate-number {
    padding: 0.2rem 0.65rem;
    letter-spacing: 0.12em;
    color: #0f172a;
    font-size: 0.95rem;
}

.license-plate-lg .plate-country {
    padding: 0.4rem 0.8rem;
    font-size: 0.95rem;
}
.license-plate-lg .plate-number {
    padding: 0.4rem 1.1rem;
    font-size: 1.4rem;
}

/* Main Content */
.main-content {
    flex: 1;
    padding-top: 2rem;
    padding-bottom: 3.5rem;
}

/* Page Header */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.75rem;
}

.page-title {
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--text-main);
}

.page-subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 0.25rem;
}

.back-link {
    display: inline-block;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
}

.back-link:hover {
    text-decoration: underline;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-family: inherit;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s ease-in-out;
}

.btn-sm {
    padding: 0.4rem 0.85rem;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background-color: var(--primary);
    color: #fff;
}
.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-secondary {
    background-color: var(--secondary);
    color: #fff;
}
.btn-secondary:hover {
    background-color: var(--secondary-hover);
}

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

.btn-outline {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-main);
}
.btn-outline:hover {
    background-color: #f1f5f9;
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.95rem;
}

.alert-success {
    background-color: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-warning {
    background-color: #fffbeb;
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert-danger {
    background-color: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-info {
    background-color: #eff6ff;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

.alert-close {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    color: inherit;
    padding-left: 1rem;
}

/* Filter Bar */
.filter-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.75rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 420px;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.5;
}

.search-box input {
    padding-left: 2.75rem;
    width: 100%;
}

.filter-tabs {
    display: flex;
    background: #e2e8f0;
    padding: 3px;
    border-radius: var(--radius-md);
    gap: 3px;
}

.filter-tab {
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: all 0.2s;
}

.filter-tab.active {
    background: #fff;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.filter-count {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 600;
}

/* Cards Grid */
.cars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.car-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}

.car-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.car-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.car-year {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 700;
}

.car-title {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 0.75rem;
}

.car-stats-row {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

.stat-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 700;
}

.stat-km {
    background-color: #eff6ff;
    color: var(--primary);
}

.stat-km-lg {
    background-color: #eff6ff;
    color: var(--primary);
    font-size: 1.25rem;
    padding: 0.5rem 1rem;
}

.stat-date {
    background-color: #f1f5f9;
    color: var(--secondary);
}

.car-attribute {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.car-owner {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.4rem;
    padding-top: 0.5rem;
    border-top: 1px dashed var(--border-color);
}

.car-card-footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.inline-form {
    display: inline;
}

/* Detail Card */
.detail-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
}

.detail-hero-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 1rem;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

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

@media (max-width: 480px) {
    .detail-grid {
        grid-template-columns: 1fr;
    }
}

.detail-item {
    display: flex;
    flex-direction: column;
}

.detail-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 700;
    letter-spacing: 0.04em;
    margin-bottom: 0.2rem;
}

.detail-value {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-main);
}

/* Tabs */
.tab-navigation {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.tab-btn {
    background: transparent;
    border: none;
    font-family: inherit;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-muted);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

.tab-btn:hover {
    background-color: #f1f5f9;
    color: var(--text-main);
}

.tab-btn.active {
    background-color: var(--primary);
    color: #fff;
}

.tab-content {
    display: none;
}

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

.section-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    box-shadow: var(--shadow-sm);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

.section-header h3 {
    font-size: 1.2rem;
    font-weight: 800;
}

/* Data Tables */
.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

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

.data-table th {
    background-color: #f8fafc;
    color: var(--text-muted);
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.data-table tr:hover td {
    background-color: #f8fafc;
}

.text-right {
    text-align: right !important;
}

/* Notes Grid */
.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.note-card {
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    display: flex;
    flex-direction: column;
}

.note-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.note-header h4 {
    font-size: 1rem;
    color: #92400e;
    font-weight: 700;
}

.note-date {
    font-size: 0.75rem;
    color: #b45309;
}

.note-content {
    font-size: 0.9rem;
    color: #78350f;
    flex-grow: 1;
    margin-bottom: 0.75rem;
}

.note-footer {
    display: flex;
    justify-content: flex-end;
}

/* Forms */
.form-card-container {
    max-width: 720px;
    margin: 0 auto;
}

.form-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

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

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.required {
    color: var(--danger);
}

.form-input {
    width: 100%;
    padding: 0.65rem 0.9rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.95rem;
    background: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-help {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    display: block;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.collapsible-form {
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.collapsible-form.hidden {
    display: none;
}

.inline-add-form {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

/* Auth Cards */
.auth-wrapper {
    display: flex;
    justify-content: center;
    padding-top: 2rem;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    max-width: 460px;
    width: 100%;
    box-shadow: var(--shadow-md);
}

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

.auth-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    display: inline-block;
}

.auth-title {
    font-size: 1.6rem;
    font-weight: 800;
}

.auth-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.demo-accounts-box {
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    border-top: 1px dashed var(--border-color);
}

.demo-accounts-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 0.75rem;
}

.demo-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.auth-footer a {
    color: var(--primary);
    font-weight: 700;
    text-decoration: none;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Empty State / 404 */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--bg-card);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-lg);
    grid-column: 1 / -1;
}

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

/* Footer */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: auto;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-meta {
    margin-top: 0.5rem;
    font-size: 0.8rem;
}

.footer-meta code {
    background: #f1f5f9;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    color: #0f172a;
}