:root {
    color-scheme: dark;

    --bg: #0a0c12;
    --bg-glow-1: #1c1436;
    --bg-glow-2: #06202c;

    --surface: #12151f;
    --surface-2: #171b28;
    --surface-hover: #1d2233;
    --border: #262b3d;
    --border-soft: #1c2130;

    --text: #eef0f6;
    --text-dim: #9aa1b5;
    --text-faint: #656d84;

    --accent-1: #8b5cf6;
    --accent-2: #22d3ee;
    --accent-grad: linear-gradient(135deg, var(--accent-1), var(--accent-2));

    --success: #34d399;
    --success-bg: rgba(52, 211, 153, 0.12);
    --success-border: rgba(52, 211, 153, 0.3);

    --danger: #fb7185;
    --danger-bg: rgba(251, 113, 133, 0.1);
    --danger-border: rgba(251, 113, 133, 0.28);

    --warning: #fbbf24;
    --warning-bg: rgba(251, 191, 36, 0.1);
    --warning-border: rgba(251, 191, 36, 0.28);

    --neutral-bg: rgba(154, 161, 181, 0.1);
    --neutral-border: rgba(154, 161, 181, 0.22);

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;

    --shadow-lg: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
    --shadow-sm: 0 8px 24px -12px rgba(0, 0, 0, 0.5);
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
    background:
        radial-gradient(circle at 12% -10%, var(--bg-glow-1), transparent 42%),
        radial-gradient(circle at 88% 0%, var(--bg-glow-2), transparent 40%),
        var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

.mono {
    font-family: "SF Mono", ui-monospace, "Cascadia Code", Menlo, Consolas, monospace;
}

.app-shell {
    max-width: 1080px;
    margin: 0 auto;
    padding: 48px 24px 80px;
}

/* ---------- Header ---------- */

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 36px;
}

.app-header .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent-2);
    margin-bottom: 10px;
}

.app-header .eyebrow .dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent-grad);
    box-shadow: 0 0 12px var(--accent-2);
}

.app-header .eyebrow .doc-icon {
    width: 20px;
    height: 20px;
    filter: drop-shadow(0 0 6px var(--accent-2));
}

.app-header h1 {
    margin: 0;
    font-size: 30px;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff, #b9c0d4);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.app-header p {
    margin: 8px 0 0;
    color: var(--text-dim);
    font-size: 14.5px;
    max-width: 520px;
    line-height: 1.5;
}

.header-stats {
    display: flex;
    gap: 12px;
}

.stat-pill {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 10px 16px;
    min-width: 84px;
    text-align: center;
}

.stat-pill .value {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.1;
}

.stat-pill .label {
    font-size: 11px;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: 4px;
}

.stat-pill.success .value { color: var(--success); }
.stat-pill.danger .value { color: var(--danger); }

/* ---------- Card / Table ---------- */

.card {
    background: linear-gradient(180deg, var(--surface), var(--surface) 60%, var(--surface-2));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.card-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 22px;
    border-bottom: 1px solid var(--border-soft);
}

.card-toolbar h2 {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}

.card-toolbar .sub {
    margin-top: 2px;
    font-size: 12.5px;
    color: var(--text-faint);
}

.connect-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 22px;
    border-bottom: 1px solid var(--border-soft);
    flex-wrap: wrap;
}

.vin-input {
    flex: 1;
    min-width: 220px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-size: 13px;
    color: var(--text);
}

.vin-input::placeholder {
    color: var(--text-faint);
}

.vin-input:focus {
    outline: none;
    border-color: var(--accent-1);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.18);
}

.table-scroll {
    overflow-x: auto;
}

table.fleet-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

.fleet-table thead th {
    text-align: left;
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-faint);
    font-weight: 600;
    padding: 12px 22px;
    border-bottom: 1px solid var(--border-soft);
    white-space: nowrap;
}

.fleet-table tbody td {
    padding: 13px 22px;
    border-bottom: 1px solid var(--border-soft);
    vertical-align: middle;
    color: var(--text);
}

.fleet-table tbody tr {
    transition: background-color 120ms ease;
}

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

.fleet-table tbody tr:hover {
    background: var(--surface-hover);
}

.telemetry-table {
    font-size: 12.5px;
}

.telemetry-table th,
.telemetry-table td {
    padding-left: 18px;
    padding-right: 18px;
    white-space: nowrap;
}

.vin-cell {
    font-weight: 600;
    letter-spacing: 0.01em;
}

.actions-cell {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

/* ---------- Badges ---------- */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.badge .badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.badge.success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success-border);
}
.badge.success .badge-dot { background: var(--success); box-shadow: 0 0 8px var(--success); }

.badge.danger {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid var(--danger-border);
}
.badge.danger .badge-dot { background: var(--danger); }

.badge.warning {
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid var(--warning-border);
}
.badge.warning .badge-dot { background: var(--warning); }

.badge.neutral {
    background: var(--neutral-bg);
    color: var(--text-dim);
    border: 1px solid var(--neutral-border);
}
.badge.neutral .badge-dot { background: var(--text-faint); }

.error-code {
    font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
    font-size: 10.5px;
    color: var(--danger);
    opacity: 0.85;
}

/* ---------- Buttons ---------- */

.btn {
    appearance: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 12.5px;
    font-weight: 600;
    padding: 7px 14px;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: transform 100ms ease, box-shadow 150ms ease, background-color 150ms ease, opacity 150ms ease;
    white-space: nowrap;
}

.btn:active:not(:disabled) {
    transform: translateY(1px);
}

.btn:disabled {
    cursor: not-allowed;
    opacity: 0.55;
}

.btn-primary {
    background: var(--accent-grad);
    color: #0a0c12;
    box-shadow: 0 6px 18px -6px rgba(139, 92, 246, 0.55);
}

.btn-primary:hover:not(:disabled) {
    box-shadow: 0 8px 22px -6px rgba(139, 92, 246, 0.75);
}

.btn-ghost {
    background: var(--surface-2);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--surface-hover);
    border-color: #343b52;
}

.btn-outline-danger {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger-border);
}

.btn-outline-danger:hover:not(:disabled) {
    background: var(--danger-bg);
}

.btn-sm {
    padding: 5px 11px;
    font-size: 11.5px;
}

.btn-icon {
    padding: 7px 9px;
}

.spinner {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid rgba(0, 0, 0, 0.25);
    border-top-color: rgba(0, 0, 0, 0.75);
    animation: spin 0.7s linear infinite;
}

.spinner.light {
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--text);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ---------- Toasts ---------- */

.toast-stack {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 200;
}

.toast {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-left: 3px solid var(--danger);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    font-size: 13px;
    max-width: 320px;
    animation: toast-in 180ms ease;
}

.toast.info {
    border-left-color: var(--accent-2);
}

@keyframes toast-in {
    from { opacity: 0; transform: translateX(12px); }
    to { opacity: 1; transform: translateX(0); }
}

/* ---------- Modal ---------- */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(4, 5, 10, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 24px;
    animation: overlay-in 150ms ease;
}

@keyframes overlay-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-panel {
    width: 100%;
    max-width: 90vw;
    max-height: 84vh;
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: panel-in 180ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

@keyframes panel-in {
    from { opacity: 0; transform: translateY(10px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-soft);
}

.modal-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 700;
}

.modal-header .sub {
    margin-top: 4px;
    font-size: 12.5px;
    color: var(--text-faint);
}

.modal-close {
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--text-dim);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.modal-close:hover {
    background: var(--surface-hover);
    color: var(--text);
}

.modal-body {
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 24px;
    border-top: 1px solid var(--border-soft);
}

.pager {
    display: flex;
    align-items: center;
    gap: 10px;
}

.pager .page-info {
    font-size: 12.5px;
    color: var(--text-dim);
}

.vin-list-panel {
    max-width: 440px;
}

.vin-list {
    list-style: none;
    margin: 0;
    padding: 8px;
    max-height: 50vh;
    overflow-y: auto;
}

.vin-list-item {
    appearance: none;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: var(--text);
    font-size: 13px;
    cursor: pointer;
    transition: background-color 120ms ease;
}

.vin-list-item:hover {
    background: var(--surface-hover);
}

.copy-hint {
    flex-shrink: 0;
    font-size: 10.5px;
    font-weight: 600;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.vin-list-item:hover .copy-hint {
    color: var(--accent-2);
}

.empty-state {
    padding: 48px 24px;
    text-align: center;
    color: var(--text-faint);
    font-size: 13.5px;
}

.empty-state .glyph {
    font-size: 28px;
    margin-bottom: 10px;
    opacity: 0.6;
    display: flex;
    justify-content: center;
}

.empty-state .glyph .delorean-icon {
    width: 72px;
    height: auto;
}

.loading-row {
    padding: 40px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--text-faint);
    font-size: 13px;
}

.footer-note {
    text-align: center;
    margin-top: 28px;
    color: var(--text-faint);
    font-size: 12px;
}

.footer-note a, .footer-note button.link {
    color: var(--text-dim);
    background: none;
    border: none;
    cursor: pointer;
    text-decoration: underline;
    font-size: inherit;
    font-family: inherit;
    padding: 0;
}