.atlas-hero {
  padding: clamp(2.5rem, 5vw, 4.75rem) 0;
  background: var(--color-surface-soft);
  border-bottom: 1px solid var(--color-line);
}

.atlas-main {
  display: grid;
  gap: 2.5rem;
  padding-block: 2.5rem 4rem;
}

.atlas-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.atlas-metric {
  padding: 1.2rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.atlas-metric strong {
  display: block;
  color: var(--color-primary);
  font-size: clamp(1.8rem, 3.8vw, 2.6rem);
  line-height: 1;
}

.atlas-metric span {
  display: block;
  margin-top: 0.45rem;
  color: var(--color-ink-soft);
}

.atlas-systems {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.atlas-system-card,
.atlas-term-card {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.atlas-system-card {
  display: grid;
  gap: 1rem;
  padding: 1.2rem;
}

.atlas-system-card__header,
.atlas-term-card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.atlas-system-card h3,
.atlas-term-card h3 {
  margin: 0.25rem 0 0;
}

.atlas-coverage-track {
  height: 0.5rem;
  overflow: hidden;
  border-radius: 999px;
  background: var(--color-line);
}

.atlas-coverage-track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--color-primary);
}

.atlas-system-card__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
  margin: 0;
}

.atlas-system-card__stats div {
  padding: 0.65rem;
  border-radius: var(--radius-sm);
  background: var(--color-surface-soft);
}

.atlas-system-card__stats dt {
  color: var(--color-ink-soft);
  font-size: 0.82rem;
}

.atlas-system-card__stats dd {
  margin: 0.2rem 0 0;
  color: var(--color-primary);
  font-weight: 700;
}

.atlas-filters {
  display: grid;
  grid-template-columns: minmax(240px, 1.6fr) repeat(3, minmax(150px, 1fr));
  gap: 0.8rem;
  padding: 1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.atlas-filter-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 1rem 0;
}

.atlas-term-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.atlas-term-card {
  padding: 1.2rem;
}

.atlas-anchor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 1rem 0;
}

.atlas-anchor-grid > div {
  padding: 0.85rem;
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-surface-soft);
}

.atlas-anchor-grid p {
  margin: 0.35rem 0 0;
}

.atlas-thumbs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  margin: 1rem 0;
}

.atlas-thumb {
  display: grid;
  padding: 0;
  overflow: hidden;
  color: var(--color-ink);
  text-align: left;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  cursor: pointer;
}

.atlas-thumb img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.atlas-thumb span {
  padding: 0.55rem;
  font-size: 0.82rem;
}

.atlas-term-card summary {
  margin-top: 0.8rem;
  color: var(--color-primary);
  font-weight: 700;
  cursor: pointer;
}

.atlas-term-detail {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  margin-top: 0.85rem;
}

.atlas-term-detail section {
  padding: 0.8rem;
  border-radius: var(--radius-sm);
  background: var(--color-surface-soft);
}

.atlas-term-detail h4 {
  margin-top: 0;
}

.atlas-viewer {
  width: min(96vw, 1180px);
  max-height: 94vh;
  padding: 0;
  border: 0;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.atlas-viewer::backdrop {
  background: rgba(8, 31, 36, 0.75);
}

.atlas-viewer__header,
.atlas-viewer__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--color-line);
}

.atlas-viewer__footer {
  flex-wrap: wrap;
  border-top: 1px solid var(--color-line);
  border-bottom: 0;
}

.atlas-viewer__canvas {
  display: grid;
  min-height: 360px;
  max-height: 68vh;
  padding: 1rem;
  overflow: auto;
  place-items: center;
  background: #132125;
}

.atlas-viewer__canvas img {
  max-width: 100%;
  max-height: 64vh;
  transform-origin: center;
}

.atlas-viewer__zoom {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

@media (max-width: 960px) {
  .atlas-systems {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .atlas-filters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .atlas-term-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .atlas-metrics,
  .atlas-systems,
  .atlas-filters,
  .atlas-anchor-grid,
  .atlas-term-detail {
    grid-template-columns: 1fr;
  }

  .atlas-system-card__header,
  .atlas-term-card__top,
  .atlas-filter-meta {
    align-items: stretch;
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .atlas-thumbs,
  .atlas-system-card__stats {
    grid-template-columns: 1fr;
  }
}