.organization-chart-overview {
  margin: var(--space-3) 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
}

.organization-chart-overview img {
  display: block;
  width: 100%;
  height: auto;
}

.organization-chart-viewer {
  max-width: 100%;
  max-height: min(72vh, 900px);
  margin: var(--space-3) 0;
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
}

.organization-chart-viewer img {
  display: block;
  width: auto;
  max-width: none;
  height: auto;
}

.organization-chart-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: var(--space-3) 0;
}

.organization-chart-summary {
  padding: var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--accent-soft);
}

.organization-chart-summary ul {
  margin-bottom: 0;
}

.organization-evidence-lab {
  padding: var(--space-4);
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--accent-soft), #fff 68%);
}

.organization-lab-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: var(--space-3);
}

.organization-lab-heading h2 {
  margin-top: 0;
}

.organization-lab-progress {
  margin: 0;
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
  background: #fff;
  color: var(--accent-strong);
  font-weight: 700;
  white-space: nowrap;
}

.organization-investigation-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.organization-investigation {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 0.35rem 1rem rgb(31 41 51 / 7%);
}

.organization-investigation > summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  cursor: pointer;
  list-style: none;
}

.organization-investigation > summary::-webkit-details-marker {
  display: none;
}

.organization-investigation > summary::after {
  margin-left: auto;
  content: '+';
  color: var(--accent-strong);
  font-size: 1.35rem;
  font-weight: 700;
}

.organization-investigation[open] > summary::after {
  content: '−';
}

.organization-investigation > summary:focus-visible {
  outline: 3px solid #f6bd60;
  outline-offset: -3px;
}

.organization-investigation-number {
  display: inline-grid;
  flex: 0 0 2rem;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.organization-investigation summary small {
  display: block;
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 400;
}

.organization-investigation-content {
  padding: 0 1rem 1rem;
}

.organization-activity-options {
  display: grid;
  gap: 0.6rem;
  margin: 1rem 0;
}

.organization-activity-option {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 0.55rem;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  text-align: left;
}

.organization-activity-option:hover,
.organization-activity-option:focus-visible {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.organization-activity-option:focus-visible {
  outline: 3px solid #f6bd60;
  outline-offset: 2px;
}

.organization-activity-option.is-correct {
  border-color: #24734d;
  background: #e6f4ec;
}

.organization-activity-option.is-incorrect {
  border-color: #a33b2d;
  background: #fff0ed;
}

.organization-activity-feedback {
  margin: 0 0 1rem;
  padding: 0.75rem;
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
}

.organization-source-note,
.organization-lab-note {
  color: var(--muted);
  font-size: 0.92rem;
}

.organization-activity-nojs {
  padding: 0.75rem;
  border-left: 4px solid var(--border);
  background: var(--surface-soft);
  font-size: 0.92rem;
}

body.has-organization-lab .organization-activity-nojs {
  display: none;
}

@media (max-width: 760px) {
  .organization-lab-heading {
    display: block;
  }

  .organization-lab-progress {
    display: inline-block;
    margin-top: 0.5rem;
  }

  .organization-investigation-grid {
    grid-template-columns: 1fr;
  }
}