.sn-scope-layout {
    max-width: var(--ai-container-max);
    margin: 0 auto;
    padding: 0 12px 48px;
}

.mt-lesson-body--wide {
    max-width: 820px;
    margin: 0 auto;
    padding: 0 20px 32px;
}

.sn-scope-section {
    margin: 20px 0 0;
}

.sn-scope-panel {
    border: 1px solid var(--ai-gray-200);
    border-radius: var(--ai-radius-lg);
    overflow: hidden;
    background: #fff;
    box-shadow: var(--ai-shadow-md);
}

.sn-scope-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 18px;
    background: #f8fafc;
    border-bottom: 1px solid var(--ai-gray-200);
}

.sn-scope-header h2 {
    margin: 0;
    font-size: 1.05rem;
    color: var(--ai-blue-800);
}

.sn-scope-ref {
    margin: 4px 0 0;
    font-size: 0.78rem;
    color: var(--ai-gray-600);
    font-weight: 400;
}

.sn-scope-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
}

.sn-scope-controls label {
    font-size: 0.82rem;
    color: var(--ai-gray-700);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.sn-scope-controls select {
    font-size: 0.82rem;
    padding: 6px 8px;
    border-radius: var(--ai-radius-sm);
    border: 1px solid var(--ai-gray-300);
}

.sn-trigger-btn {
    font-size: 0.88rem;
    padding: 8px 18px;
    font-weight: 600;
    border: none;
    border-radius: var(--ai-radius-md);
    background: var(--ai-blue-600);
    color: #fff;
    cursor: pointer;
}

.sn-trigger-btn:hover {
    background: var(--ai-blue-800);
}

.sn-scope-canvas {
    display: block;
    width: 100%;
    height: min(58vh, 520px);
    min-height: 400px;
    background: #d4d7dc;
}

.sn-readouts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 8px;
    padding: 12px 18px;
    background: #f1f5f9;
    border-top: 1px solid #cbd5e1;
}

.sn-readout {
    padding: 8px 10px;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: var(--ai-radius-sm);
}

.sn-readout-label {
    display: block;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #64748b;
    margin-bottom: 2px;
}

.sn-readout-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--ai-blue-800);
    font-variant-numeric: tabular-nums;
}

.sn-readout-note {
    font-size: 0.68rem;
    color: #94a3b8;
    margin-top: 2px;
}

.sn-readout--fixed .sn-readout-value {
    color: #166534;
}

.sn-hint {
    margin: 10px 18px 14px;
    font-size: 0.82rem;
    color: var(--ai-gray-600);
    line-height: 1.45;
}

.sn-aha {
    margin: 0 18px 18px;
    padding: 12px 14px;
    background: #eff6ff;
    border-left: 4px solid var(--ai-blue-600);
    border-radius: 0 var(--ai-radius-sm) var(--ai-radius-sm) 0;
    font-size: 0.88rem;
    color: var(--ai-gray-700);
    line-height: 1.5;
}