/* Device test pages — light theme aligned with Make QR */
:root {
    --dt-line: #e5e7eb;
    --dt-muted: #6b7280;
    --dt-text: #111827;
    --dt-brand: #2563eb;
    --dt-brand-dark: #1e40af;
    --dt-ok: #16a34a;
    --dt-warn: #d97706;
    --dt-bad: #dc2626;
    --dt-radius: 0.75rem;
    --dt-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.06);
}

.page-body .wrap {
    width: min(72rem, calc(100% - 2rem));
    margin: 0 auto;
    padding: 2rem 0 3rem;
}

.page-body .hero {
    padding: 0 0 1.5rem;
    text-align: center;
}

.page-body .badge {
    display: inline-flex;
    gap: 0.5rem;
    align-items: center;
    border: 1px solid #bfdbfe;
    background: #eff6ff;
    border-radius: 999px;
    padding: 0.4rem 0.85rem;
    color: #1d4ed8;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.page-body .hero h1 {
    font-size: clamp(1.875rem, 4vw, 2.5rem);
    line-height: 1.15;
    margin: 0 0 0.75rem;
    letter-spacing: -0.02em;
    color: var(--dt-text);
    font-weight: 700;
}

.page-body .hero p {
    max-width: 42rem;
    margin: 0 auto;
    color: var(--dt-muted);
    font-size: 1.05rem;
    line-height: 1.6;
}

.page-body .tool,
.page-body .grid {
    display: grid;
    grid-template-columns: 1.4fr 0.85fr;
    gap: 1.25rem;
    margin: 1.5rem 0 2rem;
}

.page-body .content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.page-body .panel {
    background: #fff;
    border: 1px solid var(--dt-line);
    border-radius: var(--dt-radius);
    box-shadow: var(--dt-shadow);
    overflow: hidden;
}

.page-body .section {
    padding: 1.5rem;
}

.page-body .section h2 {
    margin: 0 0 0.75rem;
    font-size: 1.25rem;
    letter-spacing: -0.01em;
    color: var(--dt-text);
    font-weight: 700;
}

.page-body .section p,
.page-body .section li {
    color: var(--dt-muted);
    line-height: 1.6;
}

.page-body .toolbox {
    padding: 1.25rem;
}

.page-body .big {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--dt-text);
}

.page-body .controls {
    display: flex;
    gap: 0.65rem;
    flex-wrap: wrap;
    margin-top: 1rem;
    padding: 0;
    background: transparent;
    border: 0;
}

.page-body .tool .controls {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--dt-line);
    background: #f9fafb;
}

.page-body button,
.page-body select {
    border: 1px solid var(--dt-line);
    border-radius: 0.5rem;
    padding: 0.6rem 0.9rem;
    font-weight: 600;
    color: var(--dt-text);
    background: #fff;
    cursor: pointer;
    font-size: 0.925rem;
}

.page-body button.primary {
    background: #2563eb;
    border-color: #2563eb;
    color: #fff;
}

.page-body button.primary:hover {
    background: #1d4ed8;
}

.page-body button.danger {
    background: #fef2f2;
    border-color: #fecaca;
    color: #b91c1c;
}

.page-body button:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.page-body select {
    width: 100%;
    margin: 0.5rem 0 1rem;
}

.page-body .side {
    padding: 1.25rem;
}

.page-body .side h2 {
    font-size: 1.125rem;
    margin: 0 0 0.75rem;
    color: var(--dt-text);
}

.page-body .metric {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.65rem 0;
    border-bottom: 1px solid #f3f4f6;
    font-size: 0.925rem;
}

.page-body .metric span:first-child {
    color: var(--dt-muted);
}

.page-body .metric b {
    text-align: right;
    color: var(--dt-text);
    font-weight: 600;
}

.page-body .ok { color: var(--dt-ok); }
.page-body .bad { color: var(--dt-bad); }
.page-body .warn { color: var(--dt-warn); }

.page-body .note,
.page-body .privacy {
    margin-top: 1rem;
    padding: 0.875rem 1rem;
    border-radius: 0.5rem;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
    font-size: 0.9rem;
    line-height: 1.5;
}

.page-body .links {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.page-body .links a {
    text-decoration: none;
    border: 1px solid var(--dt-line);
    background: #f9fafb;
    padding: 0.45rem 0.75rem;
    border-radius: 999px;
    color: #1d4ed8;
    font-size: 0.875rem;
    font-weight: 500;
}

.page-body .links a:hover {
    background: #eff6ff;
    border-color: #bfdbfe;
}

.page-body .faq details {
    border-top: 1px solid var(--dt-line);
    padding: 0.875rem 0;
}

.page-body .faq summary {
    cursor: pointer;
    font-weight: 700;
    color: var(--dt-text);
}

.page-body .videoBox {
    position: relative;
    aspect-ratio: 16 / 9;
    background: #111827;
    display: grid;
    place-items: center;
}

.page-body .videoBox video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
}

.page-body .videoBox.mirror video {
    transform: scaleX(-1);
}

.page-body .placeholder {
    text-align: center;
    padding: 1.75rem;
    color: #9ca3af;
}

.page-body .placeholder .icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.page-body .statusPill {
    position: absolute;
    left: 1rem;
    top: 1rem;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--dt-line);
    border-radius: 999px;
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
    color: var(--dt-muted);
    font-weight: 600;
}

.page-body .snapshot {
    margin-top: 1rem;
    display: none;
}

.page-body .snapshot img {
    max-width: 100%;
    border-radius: 0.5rem;
    border: 1px solid var(--dt-line);
}

.page-body .test-pad {
    height: 20rem;
    display: grid;
    place-items: center;
    border: 2px dashed #93c5fd;
    border-radius: var(--dt-radius);
    background: #f9fafb;
    user-select: none;
}

.page-body .test-pre {
    white-space: pre-wrap;
    background: #f9fafb;
    border: 1px solid var(--dt-line);
    border-radius: var(--dt-radius);
    padding: 1rem;
    min-height: 15rem;
    overflow: auto;
    color: var(--dt-text);
    font-size: 0.85rem;
    line-height: 1.5;
}

.page-body a:not(.links a):not(.site-logo) {
    color: #2563eb;
}

@media (max-width: 880px) {
    .page-body .tool,
    .page-body .grid,
    .page-body .content {
        grid-template-columns: 1fr;
    }
}

.page-body .level-bar-track {
    height: 28px;
    border-radius: 999px;
    background: #e5e7eb;
    border: 1px solid #d1d5db;
    overflow: hidden;
}

.page-body .level-bar-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(135deg, #2563eb, #1e40af);
    transition: width 0.05s linear;
}

body.dead-pixel-active {
    background: #000 !important;
}