/* =========================================================
   Vehicle Documents — Premium Dark Mode CSS
   ========================================================= */

/* ── Google Font ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── CSS Custom Properties ── */
:root {
    --bg-primary: #0a0e27;
    --bg-secondary: #111738;
    --bg-card: rgba(30, 41, 59, 0.55);
    --bg-card-hover: rgba(30, 41, 59, 0.75);
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-glow: rgba(99, 102, 241, 0.25);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-primary: #6366f1;
    --accent-secondary: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --success: #22c55e;
    --success-bg: rgba(34, 197, 94, 0.1);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.08);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset & Base ── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Animated background orbs */
body::before,
body::after {
    content: '';
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
    z-index: 0;
    pointer-events: none;
}

body::before {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15), transparent 70%);
    top: -100px;
    right: -100px;
    animation: floatOrb 20s ease-in-out infinite;
}

body::after {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1), transparent 70%);
    bottom: -80px;
    left: -80px;
    animation: floatOrb 25s ease-in-out infinite reverse;
}

@keyframes floatOrb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -40px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ── Navigation ── */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0 24px;
}

.navbar-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.15rem;
}

.navbar-brand .brand-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--accent-primary), #8b5cf6);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
}

.navbar-nav a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.navbar-nav a:hover,
.navbar-nav a.active {
    color: var(--text-primary);
    background: var(--accent-glow);
}

.navbar-nav a.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--accent-primary);
    border-radius: 1px;
}

.navbar-nav .nav-logout {
    color: var(--danger);
    margin-left: 8px;
}

.navbar-nav .nav-logout:hover {
    background: var(--danger-bg);
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
}

/* ── Main Content ── */
.main-content {
    position: relative;
    z-index: 1;
    max-width: 1280px;
    margin: 0 auto;
    padding: 32px 24px 60px;
}

/* ── Page Header ── */
.page-header {
    margin-bottom: 32px;
}

.page-header h1 {
    font-size: 1.85rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 6px;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.page-header-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

/* ── Glass Card ── */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    transition: var(--transition);
}

.glass-card:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-card), var(--shadow-glow);
}

.card-body {
    padding: 28px;
}

/* ── Stats Grid ── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.stat-icon.blue { background: var(--accent-glow); }
.stat-icon.green { background: var(--success-bg); }
.stat-icon.amber { background: var(--warning-bg); }
.stat-icon.red { background: var(--danger-bg); }

.stat-info h3 {
    font-size: 1.65rem;
    font-weight: 700;
    line-height: 1.2;
}

.stat-info p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
}

/* ── Table ── */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table thead {
    background: rgba(99, 102, 241, 0.06);
}

.data-table th {
    padding: 14px 20px;
    text-align: left;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-subtle);
    white-space: nowrap;
}

.data-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-subtle);
    vertical-align: middle;
}

.data-table tbody tr {
    transition: var(--transition);
}

.data-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.04);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* ── Badges ── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    white-space: nowrap;
}

.badge-valid {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.badge-warning {
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge-expired {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.badge-na {
    background: rgba(100, 116, 139, 0.1);
    color: var(--text-muted);
    border: 1px solid rgba(100, 116, 139, 0.15);
}

.badge-type {
    background: var(--accent-glow);
    color: var(--accent-secondary);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), #7c3aed);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-glow);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.2);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.82rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    justify-content: center;
    border-radius: var(--radius-sm);
}

/* ── Forms ── */
.form-group {
    margin-bottom: 22px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 0.92rem;
    transition: var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-control::placeholder {
    color: var(--text-muted);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}

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

.form-control[type="file"] {
    padding: 10px;
}

.form-control[type="file"]::file-selector-button {
    background: linear-gradient(135deg, var(--accent-primary), #7c3aed);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.82rem;
    cursor: pointer;
    margin-right: 12px;
    transition: var(--transition);
}

.form-control[type="file"]::file-selector-button:hover {
    transform: scale(1.02);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* ── Alerts / Flash Messages ── */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideDown 0.4s ease;
}

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

.alert-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.alert-error {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-info {
    background: var(--accent-glow);
    color: var(--accent-secondary);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

/* ── Login Page ── */
.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
}

.login-card {
    width: 100%;
    max-width: 420px;
    padding: 44px 36px;
    text-align: center;
}

.login-card .brand-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-primary), #8b5cf6);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin: 0 auto 20px;
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.35);
}

.login-card h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.login-card .subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 32px;
}

.login-card .form-group {
    text-align: left;
}

.login-card .btn-primary {
    width: 100%;
    justify-content: center;
    padding: 13px;
    font-size: 0.95rem;
    margin-top: 8px;
}

/* ── Empty State ── */
.empty-state {
    text-align: center;
    padding: 60px 24px;
}

.empty-state .icon {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.empty-state p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

/* ── Doc Types Page — Inline Form ── */
.inline-form {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.inline-form .form-control {
    flex: 1;
}

/* ── Search Bar ── */
.search-bar {
    position: relative;
    max-width: 340px;
}

.search-bar .form-control {
    padding-left: 40px;
}

.search-bar .search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
}

/* ── Action Cell ── */
.action-cell {
    display: flex;
    gap: 8px;
}

/* ── Footer ── */
.footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 24px;
    color: var(--text-muted);
    font-size: 0.8rem;
    border-top: 1px solid var(--border-subtle);
}

/* ── Tooltip ── */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) scale(0.8);
    padding: 6px 12px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.78rem;
    font-weight: 500;
    border-radius: 6px;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: var(--transition);
    border: 1px solid var(--border-subtle);
}

[data-tooltip]:hover::after {
    opacity: 1;
    transform: translateX(-50%) scale(1);
}

/* ── Confirm Dialog ── */
.confirm-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.confirm-overlay.active {
    display: flex;
}

.confirm-dialog {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 32px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    animation: scaleIn 0.3s ease;
}

@keyframes scaleIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.confirm-dialog h3 {
    margin-bottom: 8px;
}

.confirm-dialog p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.confirm-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .navbar-nav {
        display: none;
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        background: rgba(10, 14, 39, 0.95);
        backdrop-filter: blur(24px);
        flex-direction: column;
        padding: 16px;
        border-bottom: 1px solid var(--border-subtle);
        gap: 4px;
    }

    .navbar-nav.open {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .navbar-nav a.active::after {
        display: none;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .page-header-actions {
        flex-direction: column;
        align-items: flex-start;
    }

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

    .inline-form {
        flex-direction: column;
    }

    .data-table th,
    .data-table td {
        padding: 12px 14px;
    }
}

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

    .main-content {
        padding: 20px 16px 40px;
    }

    .card-body {
        padding: 20px;
    }

    .login-card {
        padding: 32px 24px;
    }
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.2);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(148, 163, 184, 0.35);
}

/* ── Fade in animation ── */
.fade-in {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Stagger children */
.stagger > * {
    animation: fadeIn 0.4s ease backwards;
}

.stagger > *:nth-child(1) { animation-delay: 0s; }
.stagger > *:nth-child(2) { animation-delay: 0.05s; }
.stagger > *:nth-child(3) { animation-delay: 0.1s; }
.stagger > *:nth-child(4) { animation-delay: 0.15s; }

/* ── Lucide Icons ── */
[data-lucide] {
    width: 18px;
    height: 18px;
    stroke-width: 2;
    vertical-align: middle;
    flex-shrink: 0;
}

.btn [data-lucide] {
    width: 16px;
    height: 16px;
}

.badge [data-lucide] {
    width: 12px;
    height: 12px;
}

.brand-icon [data-lucide] {
    width: 20px;
    height: 20px;
    color: white;
}

.stat-icon [data-lucide] {
    width: 24px;
    height: 24px;
}

.navbar-nav a [data-lucide] {
    width: 16px;
    height: 16px;
    opacity: 0.85;
}

.navbar-nav a:hover [data-lucide],
.navbar-nav a.active [data-lucide] {
    opacity: 1;
}

.empty-state .icon [data-lucide] {
    width: 48px;
    height: 48px;
    opacity: 0.5;
}