/* ==========================================================================
   Chassis OCR — Clean Light UI
   ========================================================================== */

:root {
    --blue: #2563eb;
    --blue-light: #eff6ff;
    --blue-mid: #dbeafe;
    --green: #16a34a;
    --green-light: #f0fdf4;
    --amber: #d97706;
    --amber-light: #fffbeb;
    --red: #dc2626;
    --red-light: #fef2f2;

    --text: #111827;
    --text-2: #6b7280;
    --text-3: #9ca3af;
    --border: #e5e7eb;
    --bg: #f9fafb;
    --surface: #ffffff;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);

    --radius: 8px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
    font-family: var(--font);
    font-size: 14px;
    color: var(--text);
    background: var(--bg);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

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

.header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 15px;
    color: var(--text);
}

.header-brand svg {
    color: var(--blue);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.online {
    background: var(--green);
}

.status-dot.offline {
    background: var(--red);
}

.btn-install {
    font-family: var(--font);
    font-size: 13px;
    font-weight: 500;
    color: var(--blue);
    background: var(--blue-light);
    border: 1px solid var(--blue-mid);
    padding: 5px 12px;
    border-radius: var(--radius);
    cursor: pointer;
}

/* ── Tab Nav ───────────────────────────────────────────── */
.tab-nav {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    gap: 0;
    padding: 0 20px;
    max-width: 100%;
    overflow-x: auto;
}

.tab-btn {
    font-family: var(--font);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-2);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 12px 16px;
    cursor: pointer;
    white-space: nowrap;
    transition: color 0.15s, border-color 0.15s;
}

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

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

/* ── Main Layout ───────────────────────────────────────── */
.main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px 20px;
}

.tab-panel {
    display: none;
}

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

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-items: start;
}

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

/* ── Panel ─────────────────────────────────────────────── */
.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.panel-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.panel-header h2 {
    font-size: 15px;
    font-weight: 600;
}

.panel-desc {
    color: var(--text-2);
    font-size: 13px;
    margin-top: 2px;
}

.panel-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* ── Form Fields ───────────────────────────────────────── */
.field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-2);
}

.input,
.select {
    font-family: var(--font);
    font-size: 14px;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 8px 12px;
    outline: none;
    transition: border-color 0.15s;
    width: 100%;
}

.input:focus,
.select:focus {
    border-color: var(--blue);
}

/* ── Segmented Control ─────────────────────────────────── */
.seg-control {
    display: flex;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 3px;
    gap: 2px;
}

.seg-btn {
    flex: 1;
    font-family: var(--font);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-2);
    background: transparent;
    border: none;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s;
}

.seg-btn.active {
    background: var(--surface);
    color: var(--text);
    box-shadow: var(--shadow);
}

/* ── Dropzones ─────────────────────────────────────────── */
.dropzone {
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
    background: var(--bg);
    text-align: center;
}

.dropzone:hover {
    border-color: var(--blue);
    background: var(--blue-light);
}

.dropzone svg {
    color: var(--text-3);
}

.dropzone span {
    font-size: 13px;
    color: var(--text-2);
}

/* ── Camera ────────────────────────────────────────────── */
.camera-step {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.camera-step.disabled {
    opacity: 0.4;
    pointer-events: none;
}

.step-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cam-view {
    width: 100%;
    min-height: 160px;
    background: #000;
    border-radius: 6px;
    overflow: hidden;
}

.snap-preview {
    width: 100%;
    border-radius: 6px;
    display: block;
}

.cam-actions {
    display: flex;
    gap: 8px;
}

/* ── Buttons ───────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-family: var(--font);
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius);
    padding: 8px 16px;
    cursor: pointer;
    border: none;
    transition: all 0.15s;
}

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

.btn-primary:hover:not(:disabled) {
    background: #1d4ed8;
}

.btn-primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

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

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

.btn-secondary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

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

.btn-ghost:hover {
    background: var(--bg);
}

.btn-full {
    width: 100%;
}

/* ── Spinner ───────────────────────────────────────────── */
.spinner {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    display: inline-block;
}

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

/* ── Empty State ───────────────────────────────────────── */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 48px 20px;
    text-align: center;
    color: var(--text-3);
}

.empty-state p {
    font-size: 13px;
    max-width: 260px;
}

/* ── Result Banner ─────────────────────────────────────── */
.result-banner {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    border: 1px solid;
}

.result-banner.EXACT {
    background: var(--green-light);
    border-color: #bbf7d0;
}

.result-banner.CORRECTED {
    background: var(--amber-light);
    border-color: #fde68a;
}

.result-banner.FAILED {
    background: var(--red-light);
    border-color: #fecaca;
}

.banner-title {
    font-size: 14px;
    font-weight: 600;
}

.EXACT .banner-title {
    color: var(--green);
}

.CORRECTED .banner-title {
    color: var(--amber);
}

.FAILED .banner-title {
    color: var(--red);
}

.banner-sub {
    font-size: 12px;
    color: var(--text-2);
    margin-top: 1px;
}

/* ── Result Table ──────────────────────────────────────── */
.result-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 16px;
}

.result-table td {
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

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

.rt-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-2);
    width: 40%;
    padding-right: 12px;
}

.rt-value {
    font-size: 14px;
}

.mono {
    font-family: 'Courier New', monospace;
    letter-spacing: 0.5px;
}

/* ── Preprocessing Tabs ─────────────────────────────────── */
.section-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.pre-tabs {
    display: flex;
    gap: 4px;
    overflow-x: auto;
    margin-bottom: 10px;
}

.pre-tab {
    font-family: var(--font);
    font-size: 12px;
    font-weight: 500;
    color: var(--text-2);
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 4px 10px;
    border-radius: 20px;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.15s;
}

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

.pre-tab.active {
    background: var(--blue);
    color: #fff;
    border-color: var(--blue);
}

.pre-img-wrap {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    background: #f3f4f6;
    position: relative;
}

.pre-img-wrap img {
    width: 100%;
    display: block;
    max-height: 240px;
    object-fit: contain;
    background: #000;
}

.pre-ocr-label {
    padding: 8px 12px;
    font-size: 12px;
    color: var(--text-2);
    border-top: 1px solid var(--border);
    background: var(--surface);
}

/* ── Batch Evaluation ──────────────────────────────────── */
.progress-row {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-2);
    margin-bottom: 6px;
}

.progress-track {
    height: 6px;
    background: var(--bg);
    border-radius: 3px;
    border: 1px solid var(--border);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--blue);
    border-radius: 3px;
    transition: width 0.3s;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

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

.stat-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
    background: var(--bg);
}

.stat-value {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    line-height: 1.2;
}

.stat-label {
    font-size: 12px;
    color: var(--text-2);
    margin-top: 4px;
}

.table-toolbar {
    margin-bottom: 12px;
}

.search-input {
    max-width: 300px;
}

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

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table th {
    text-align: left;
    padding: 8px 12px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-2);
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.data-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.data-table tbody tr:hover {
    background: var(--bg);
}

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

.badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 20px;
    letter-spacing: 0.2px;
}

.badge-exact {
    background: var(--green-light);
    color: var(--green);
}

.badge-corrected {
    background: var(--amber-light);
    color: var(--amber);
}

.badge-failed {
    background: var(--red-light);
    color: var(--red);
}

/* ── Modal ─────────────────────────────────────────────── */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-box {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 860px;
    overflow: hidden;
}

.modal-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 14px;
}

.modal-close-btn {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--text-2);
    cursor: pointer;
    line-height: 1;
    padding: 0 4px;
}

.modal-body {
    padding: 20px;
    max-height: 75vh;
    overflow-y: auto;
}

/* ── Toasts ────────────────────────────────────────────── */
.toast-stack {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 1000;
}

.toast {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 10px 16px;
    font-size: 13px;
    font-weight: 500;
    max-width: 320px;
    animation: slide-up 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.toast.success {
    border-left: 3px solid var(--green);
}

.toast.error {
    border-left: 3px solid var(--red);
}

.toast.info {
    border-left: 3px solid var(--blue);
}

@keyframes slide-up {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ADD THIS TO THE END OF YOUR EXISTING app.css — guide box for chassis camera capture */

.chassis-video-wrap {
    position: relative;
    display: inline-block;
    width: 100%;
}

.guide-box {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70%;
    height: 22%;
    border: 3px solid #2563eb;
    border-radius: 8px;
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.45);
    pointer-events: none;
    z-index: 2;
}

/* ── Utilities ─────────────────────────────────────────── */
.hidden {
    display: none !important;
}

.hidden-input {
    display: none;
}