.gastrointestinal-hero {
  background:
    linear-gradient(90deg, rgba(250, 245, 238, 0.96), rgba(238, 246, 244, 0.93)),
    var(--color-surface);
}

.gastrointestinal-atlas-hero {
  padding-block: var(--space-6);
  background: var(--color-surface-soft);
}

.gastrointestinal-visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 300px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, #f8efe8 0 16%, #f2d7ca 16% 34%, #f6e8df 34% 57%, #d8e3df 57% 72%, #e8d8cd 72% 88%, #f7f4ef 88% 100%);
}

.gastrointestinal-wall {
  position: absolute;
  inset: 12% 8% 18%;
  overflow: hidden;
  border: 2px solid #b97e6d;
  border-radius: 46% 46% 42% 42% / 30% 30% 54% 54%;
  background: #fff9f5;
}

.gastrointestinal-lumen {
  position: absolute;
  inset: 12% 10% 42%;
  border: 2px solid #d7a28d;
  border-radius: 45%;
  background: #fff;
}

.gastrointestinal-mucosa {
  position: absolute;
  inset: 42% 6% 27%;
  border-radius: 25% 25% 18% 18%;
  background:
    repeating-linear-gradient(
      90deg,
      #cf8f7c 0 6px,
      #f4cbbd 6px 13px,
      #fff4ee 13px 18px
    );
}

.gastrointestinal-submucosa {
  position: absolute;
  inset: 72% 6% 17%;
  background: #d9e8df;
}

.gastrointestinal-muscle {
  position: absolute;
  inset: 83% 4% 5%;
  border-radius: 0 0 40% 40%;
  background: #c78d83;
}

.gastrointestinal-focus {
  position: absolute;
  width: 3.7rem;
  height: 3.7rem;
  border: 3px solid var(--color-accent);
  border-radius: 50%;
  box-shadow: 0 0 0 7px rgba(180, 105, 80, 0.16);
  transform: translate(-70%, 20%);
  transition: transform 180ms ease;
}

.gastrointestinal-visual[data-segment="stomach"] .gastrointestinal-focus {
  transform: translate(-130%, -40%);
}

.gastrointestinal-visual[data-segment="duodenum"] .gastrointestinal-focus {
  transform: translate(-65%, 8%);
}

.gastrointestinal-visual[data-segment="jejunum"] .gastrointestinal-focus {
  transform: translate(-10%, 10%);
}

.gastrointestinal-visual[data-segment="ileum"] .gastrointestinal-focus {
  transform: translate(70%, 14%);
}

.gastrointestinal-visual[data-segment="cecum"] .gastrointestinal-focus {
  transform: translate(-90%, 90%);
}

.gastrointestinal-visual[data-segment="colon"] .gastrointestinal-focus {
  transform: translate(10%, 92%);
}

.gastrointestinal-visual[data-segment="rectum"] .gastrointestinal-focus {
  transform: translate(95%, 95%);
}

.gastrointestinal-segment-grid,
.gastrointestinal-layer-grid,
.gastrointestinal-evidence-grid {
  display: grid;
  gap: 0.8rem;
}

.gastrointestinal-segment-grid {
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.gastrointestinal-layer-grid,
.gastrointestinal-evidence-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.gastrointestinal-segment,
.gastrointestinal-layer,
.gastrointestinal-evidence {
  min-width: 0;
  padding: 0.9rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-ink);
  text-align: left;
  cursor: pointer;
}

.gastrointestinal-segment strong,
.gastrointestinal-layer strong,
.gastrointestinal-evidence strong {
  display: block;
}

.gastrointestinal-segment small,
.gastrointestinal-layer small {
  display: block;
  margin-top: 0.25rem;
  color: var(--color-ink-soft);
}

.gastrointestinal-segment[aria-selected="true"],
.gastrointestinal-layer[aria-selected="true"],
.gastrointestinal-segment.is-visited,
.gastrointestinal-layer.is-visited,
.gastrointestinal-evidence.is-visited {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}

.gastrointestinal-segment__number {
  display: inline-grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  margin-bottom: 0.45rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
}

.gastrointestinal-panel {
  margin-top: 1rem;
  padding: var(--space-4);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.gastrointestinal-builder-grid,
.gastrointestinal-filter,
.gastrointestinal-species-grid {
  display: grid;
  gap: 1rem;
}

.gastrointestinal-builder-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.gastrointestinal-filter {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.gastrointestinal-filter label,
.gastrointestinal-builder-grid label {
  display: grid;
  gap: 0.35rem;
  min-width: 0;
}

.gastrointestinal-filter input,
.gastrointestinal-filter select,
.gastrointestinal-builder-grid select {
  width: 100%;
  min-width: 0;
}

.gastrointestinal-builder-output {
  margin-top: 1rem;
  padding: 1rem;
  border-left: 4px solid var(--color-primary);
  background: var(--color-surface-soft);
}

.gastrointestinal-term-grid {
  display: grid;
  gap: 1rem;
}

.gastrointestinal-term-card {
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.gastrointestinal-term-card summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.1rem;
  cursor: pointer;
}

.gastrointestinal-term-card__title,
.gastrointestinal-term-card__english {
  display: block;
}

.gastrointestinal-term-card__title {
  color: var(--color-heading);
  font-size: 1.08rem;
  font-weight: 750;
}

.gastrointestinal-term-card__english {
  margin-top: 0.2rem;
  color: var(--color-ink-soft);
}

.gastrointestinal-term-card__body {
  display: grid;
  gap: 1rem;
  padding: 0 1.1rem 1.1rem;
  border-top: 1px solid var(--color-line);
}

.gastrointestinal-species-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gastrointestinal-species-grid article {
  padding: 0.9rem;
  border-radius: var(--radius-md);
  background: var(--color-surface-soft);
}

.filter-actions {
  margin-top: 0.85rem;
}

@media (max-width: 1100px) {
  .gastrointestinal-segment-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 960px) {
  .gastrointestinal-layer-grid,
  .gastrointestinal-evidence-grid,
  .gastrointestinal-builder-grid,
  .gastrointestinal-filter {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .gastrointestinal-segment-grid,
  .gastrointestinal-species-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .gastrointestinal-layer-grid,
  .gastrointestinal-evidence-grid,
  .gastrointestinal-builder-grid,
  .gastrointestinal-filter {
    grid-template-columns: 1fr;
  }

  .gastrointestinal-visual {
    min-height: 240px;
  }

  .gastrointestinal-term-card summary {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .gastrointestinal-focus {
    transition: none;
  }
}