.n3-wrap {
  max-width: var(--panel-max);
  margin: 0 auto;
  padding: 0 1rem 3rem;
}

.n3-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}
.n3-title {
  font-size: clamp(1.4rem, 1rem + 2vw, 2.1rem);
  font-weight: 700;
  color: var(--color-text, #28251d);
  line-height: 1.15;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
}
.n3-title .n3-star-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2rem 0.65rem;
  border-radius: 9999px;
  background: color-mix(in srgb, var(--color-gold, #d19900) 18%, transparent);
  color: #8a5b00;
  border: 1px solid color-mix(in srgb, var(--color-gold, #d19900) 40%, transparent);
  vertical-align: middle;
}
.n3-subtitle {
  font-size: 0.88rem;
  color: var(--color-text-muted, #7a7974);
  margin-top: 0.3rem;
}

.n3-runinfo-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-primary, #01696f);
  background: color-mix(in srgb, var(--color-primary, #01696f) 8%, var(--color-surface, #f9f8f5));
  border: 1px solid color-mix(in srgb, var(--color-primary, #01696f) 30%, transparent);
  border-radius: 9999px;
  padding: 0.35rem 0.85rem;
  cursor: pointer;
  transition: background 160ms, color 160ms;
  white-space: nowrap;
  align-self: flex-start;
  margin-top: 0.2rem;
}
.n3-runinfo-btn:hover {
  background: color-mix(in srgb, var(--color-primary, #01696f) 15%, var(--color-surface, #f9f8f5));
}
.n3-runinfo-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: oklch(0.1 0 0 / 0.55);
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.n3-runinfo-overlay.open { display: flex; }
.n3-runinfo-card {
  background: var(--color-surface-2, #fbfbf9);
  border: 1px solid var(--color-border, #d4d1ca);
  border-radius: 1rem;
  padding: 1.75rem 2rem;
  max-width: 480px;
  width: 100%;
  box-shadow: 0 16px 48px oklch(0 0 0 / 0.2);
  position: relative;
}
.n3-runinfo-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--color-text, #28251d);
}
.n3-runinfo-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.83rem;
}
.n3-runinfo-table tr + tr td { border-top: 1px solid var(--color-divider, #dcd9d5); }
.n3-runinfo-table td {
  padding: 0.45rem 0.25rem;
  vertical-align: top;
  color: var(--color-text-muted, #7a7974);
}
.n3-runinfo-table td:first-child {
  font-weight: 700;
  color: var(--color-text, #28251d);
  white-space: nowrap;
  padding-right: 1rem;
  width: 38%;
}
.n3-runinfo-close {
  position: absolute;
  top: 0.85rem; right: 1rem;
  background: none; border: none;
  font-size: 1.35rem; line-height: 1;
  cursor: pointer;
  color: var(--color-text-muted, #7a7974);
  opacity: 0.7;
  transition: opacity 150ms;
}
.n3-runinfo-close:hover { opacity: 1; }

@keyframes n3-shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}
.n3-skeleton {
  background: linear-gradient(
    90deg,
    var(--color-surface-offset, #f3f0ec) 25%,
    var(--color-surface-dynamic, #e6e4df) 50%,
    var(--color-surface-offset, #f3f0ec) 75%
  );
  background-size: 200% 100%;
  animation: n3-shimmer 1.5s ease-in-out infinite;
  border-radius: 0.5rem;
}
@media (prefers-reduced-motion: reduce) {
  .n3-skeleton { animation: none; background: var(--color-surface-offset, #f3f0ec); }
}
.n3-skeleton-png   { height: 220px; margin-bottom: 1rem; }
.n3-skeleton-chart { height: 280px; margin-bottom: 1rem; }

.n3-error-card {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.85rem 1rem;
  border-radius: 0.6rem;
  background: color-mix(in srgb, var(--color-error, #a12c7b) 8%, var(--color-surface, #f9f8f5));
  border: 1px solid color-mix(in srgb, var(--color-error, #a12c7b) 30%, transparent);
  font-size: 0.8rem;
  color: var(--color-error, #a12c7b);
  font-weight: 600;
}

.n3-section-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-text-faint, #bab9b4);
  margin: 0 0 0.85rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--color-divider, #dcd9d5);
}

.n3-png-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem;
  margin-bottom: 2.5rem;
}
@media (max-width: 600px) {
  .n3-png-grid { grid-template-columns: 1fr; }
}
.n3-png-card {
  background: var(--color-surface, #f9f8f5);
  border: 1px solid oklch(from var(--color-text, #28251d) l c h / 0.08);
  border-radius: 0.65rem;
  overflow: hidden;
  cursor: zoom-in;
  transition: transform 180ms cubic-bezier(0.16,1,0.3,1), box-shadow 180ms;
}
@media (prefers-reduced-motion: reduce) { .n3-png-card { transition: none; } }
.n3-png-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px oklch(0.2 0.01 80 / 0.1);
}
.n3-png-card img {
  display: block;
  width: 100%;
  height: auto;
  background: var(--color-surface-offset, #f3f0ec);
}
.n3-png-caption {
  padding: 0.45rem 0.7rem 0.55rem;
}
.n3-png-name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted, #7a7974);
  line-height: 1.3;
}

.n3-charts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-bottom: 2rem;
}
@media (max-width: 660px) {
  .n3-charts-grid { grid-template-columns: 1fr; }
}
.n3-chart-card {
  background: var(--color-surface, #f9f8f5);
  border: 1px solid var(--color-border, #d4d1ca);
  border-radius: 0.75rem;
  padding: 1rem 1rem 0.75rem;
}
.n3-chart-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-text, #28251d);
  margin-bottom: 0.6rem;
  letter-spacing: 0.01em;
}
.n3-chart-wrap {
  position: relative;
  height: 240px;
}

#panel3 details {
  border: 1px solid var(--color-border, #d4d1ca);
  border-radius: 0.5rem;
  margin-bottom: 1.25rem;
  background: var(--color-surface, #f9f8f5);
}
#panel3 details[open] {
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.panel-section-header {
  cursor: pointer;
  padding: 0.75rem 1rem;
  font-weight: 600;
  font-size: 0.95rem;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text, #28251d);
  border-radius: 0.5rem;
  user-select: none;
}
.panel-section-header::-webkit-details-marker {
  display: none;
}
.panel-section-header::before {
  content: '\25B6';
  font-size: 0.7rem;
  transition: transform 0.2s ease;
  color: var(--color-primary, #01696f);
}
details[open] > .panel-section-header::before {
  transform: rotate(90deg);
}
.chart-desc {
  padding: 0 1rem 0.5rem;
  font-size: 0.82rem;
  color: var(--color-text-muted, #7a7974);
}
.charts-stack {
  padding: 0.5rem 1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.chart-section h3 {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--color-text, #28251d);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tail-grid,
.recall-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
@media (max-width: 768px) {
  .tail-grid,
  .recall-grid {
    grid-template-columns: 1fr;
  }
}
.heatmap-wrapper {
  padding: 0.5rem 1rem 1rem;
  overflow-x: auto;
}
.heatmap-wrapper svg {
  min-width: 600px;
}