/* Enable threshold tool — VR-lesson chrome on a standalone tool page */

.et-page {
    max-width: 1380px;
    margin: 0 auto 48px;
}

.et-hero {
    text-align: center;
    padding: 20px 20px 8px;
    max-width: 880px;
    margin: 0 auto;
}

.et-hero .mt-part-label {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ai-gray-600);
    margin: 0 0 8px;
}

.et-hero h1 {
    margin: 0 0 10px;
    color: var(--ai-blue-800);
    font-size: 1.7rem;
}

.et-hero p {
    margin: 0;
    color: var(--ai-gray-600);
    line-height: 1.5;
}

.et-split {
    display: grid;
    grid-template-columns: minmax(240px, 0.78fr) minmax(400px, 1.85fr);
    gap: 22px 32px;
    margin: 12px auto 24px;
    padding: 0 20px 0 24px;
    align-items: start;
}

.et-read {
    position: sticky;
    top: 12px;
    max-height: calc(100vh - 24px);
    overflow-y: auto;
    padding: 2px 6px 20px 0;
}

.et-read h2 {
    margin: 0 0 10px;
    font-size: 1.05rem;
    color: var(--ai-blue-800);
}

.mt-talk-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mt-talk-list li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--ai-gray-700);
}

.mt-talk-list .mt-talk-n {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #dbeafe;
    color: #1d4ed8;
    font-size: 0.75rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.mt-talk-list strong { color: var(--ai-gray-800); }

.et-aside {
    margin-top: 16px;
    padding: 10px 12px;
    background: #fffbeb;
    border: 1px solid #fcd34d;
    border-radius: 8px;
    font-size: 0.84rem;
    color: #78350f;
    line-height: 1.45;
}

.et-aside a { color: #0f4c9e; font-weight: 600; }

.et-lab {
    background: #fff;
    border: 1px solid var(--ai-gray-200);
    border-radius: 10px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
    padding: 16px 16px 18px;
}

.et-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 14px;
}

.et-preset {
    border: 1px solid var(--ai-gray-200);
    background: var(--ai-gray-50);
    color: var(--ai-gray-700);
    border-radius: 999px;
    padding: 4px 12px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
}

.et-preset.is-on {
    background: #eff6ff;
    border-color: #93c5fd;
    color: #1d4ed8;
}

.et-controls {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 10px 14px;
    margin-bottom: 12px;
}

.et-controls label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ai-gray-600);
}

.et-controls input[type="number"],
.et-controls select {
    font: inherit;
    font-weight: 500;
    color: var(--ai-gray-800);
    padding: 5px 8px;
    border: 1px solid var(--ai-gray-200);
    border-radius: 6px;
    background: #fff;
}

.et-controls label.accent-blue input { accent-color: #2563eb; }
.et-controls label.accent-amber input { accent-color: #d97706; }
.et-controls label.accent-emerald input { accent-color: #059669; }
.et-controls label.accent-violet input { accent-color: #7c3aed; }
.et-controls label.accent-rose input { accent-color: #e11d48; }

.et-charts {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 10px;
    margin: 8px 0 10px;
}

.et-chart-card {
    border: 1px solid var(--ai-gray-200);
    border-radius: 8px;
    overflow: hidden;
    background: #fafbfc;
}

.et-chart-card h3 {
    margin: 0;
    padding: 8px 10px 0;
    font-size: 0.78rem;
    color: var(--ai-gray-600);
}

.et-chart-card canvas {
    display: block;
    width: 100%;
    height: auto;
}

.et-scatter {
    margin: 0 0 12px;
    border: 1px solid var(--ai-gray-200);
    border-radius: 8px;
    overflow: hidden;
}

.et-scatter canvas {
    display: block;
    width: 100%;
    height: auto;
}

.et-readouts {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 8px;
    margin: 0 0 12px;
}

.et-readout {
    background: var(--ai-gray-50);
    border: 1px solid var(--ai-gray-200);
    border-radius: 8px;
    padding: 8px 10px;
}

.et-readout-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--ai-gray-500);
}

.et-readout-value {
    font-family: var(--ai-font-mono);
    font-size: 0.95rem;
    color: var(--ai-blue-800);
}

.et-readout-value.is-bad { color: #dc2626; }
.et-readout-value.is-ok { color: #059669; }

.et-eq {
    margin: 8px 0 12px;
    padding: 8px 10px;
    background: #f8fafc;
    border-radius: 8px;
    border: 1px solid var(--ai-gray-200);
}

.et-eq-row {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 8px;
    margin: 4px 0;
}

.im-eq-val {
    font-family: var(--ai-font-mono);
    font-weight: 700;
    color: #1d4ed8;
}

.et-aha {
    margin: 0 0 12px;
    padding: 10px 12px;
    background: #eff6ff;
    border-left: 3px solid #2563eb;
    border-radius: 0 8px 8px 0;
    font-size: 0.88rem;
    color: var(--ai-gray-700);
    line-height: 1.45;
}

.et-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--ai-gray-200);
    border-radius: 8px;
}

.et-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}

.et-table th {
    text-align: left;
    padding: 6px 8px;
    background: #f8fafc;
    color: var(--ai-gray-600);
    font-weight: 700;
}

.et-table td {
    padding: 5px 8px;
    border-top: 1px solid var(--ai-gray-200);
    font-family: var(--ai-font-mono);
    cursor: pointer;
}

.et-table tr.is-sel td {
    background: #eff6ff;
    color: #1d4ed8;
}

.et-table tbody tr:hover td { background: #f8fafc; }

.et-finder {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px dashed var(--ai-gray-200);
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    align-items: end;
    font-size: 0.85rem;
}

.et-finder label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-weight: 600;
    color: var(--ai-gray-600);
    font-size: 0.78rem;
}

.et-finder input {
    padding: 5px 8px;
    border: 1px solid var(--ai-gray-200);
    border-radius: 6px;
}

.et-stack {
    display: grid;
    gap: 10px;
    margin: 0 0 12px;
}

.et-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 12px;
}

@media (max-width: 900px) {
    .et-split { grid-template-columns: 1fr; }
    .et-read { position: static; max-height: none; }
    .et-charts { grid-template-columns: 1fr; }
}