/*
 * Shared presentation layer for the configurable system-module renderer.
 *
 * system-* selectors support the shared module and lesion-atlas renderers for
 * respiratory, endocrine, cardiovascular, reproductive and nervous systems.
 */

.system-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, #f2f8f7 0 32%, #dbe9e7 32% 55%, #f0ddd7 55% 100%);
}

.system-airway {
  position: absolute;
  inset: 12% 16% 25%;
  border: 3px solid #477e7a;
  border-radius: 46% 46% 38% 38%;
  background: #f9fdfc;
}

.system-airway::before {
  position: absolute;
  inset: 14% 20%;
  border: 2px solid #d29782;
  border-radius: 50%;
  background: #fff;
  content: "";
}

.system-branch {
  position: absolute;
  top: 46%;
  left: 50%;
  width: 52%;
  height: 30%;
  border-right: 9px solid #7daaa5;
  border-bottom: 9px solid #7daaa5;
  border-radius: 0 0 60% 0;
  transform: translateX(-50%) rotate(8deg);
}

.system-alveoli {
  position: absolute;
  right: 11%;
  bottom: 10%;
  width: 38%;
  height: 34%;
  background:
    radial-gradient(circle at 20% 35%, #fff 0 13%, #b8d5d1 14% 17%, transparent 18%),
    radial-gradient(circle at 48% 22%, #fff 0 14%, #b8d5d1 15% 18%, transparent 19%),
    radial-gradient(circle at 75% 40%, #fff 0 15%, #b8d5d1 16% 19%, transparent 20%),
    radial-gradient(circle at 34% 72%, #fff 0 14%, #b8d5d1 15% 18%, transparent 19%),
    radial-gradient(circle at 67% 72%, #fff 0 14%, #b8d5d1 15% 18%, transparent 19%);
}

.system-focus {
  position: absolute;
  width: 3.8rem;
  height: 3.8rem;
  border: 3px solid var(--color-accent);
  border-radius: 50%;
  box-shadow: 0 0 0 7px rgba(180, 105, 80, 0.16);
  transform: translate(-110%, -65%);
  transition: transform 180ms ease;
}

.system-site-grid,
.system-compartment-grid,
.system-evidence-grid {
  display: grid;
  gap: 0.8rem;
}

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

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

.system-tab,
.system-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;
}

.system-tab strong,
.system-tab small,
.system-evidence strong,
.system-evidence small {
  display: block;
}

.system-tab small,
.system-evidence small {
  margin-top: 0.25rem;
  color: var(--color-ink-soft);
}

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

.system-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;
}

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

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

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

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

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

.system-builder-output {
  border-left: 4px solid var(--color-primary);
  background: var(--color-surface-soft);
}

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

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

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

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

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

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

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

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

.system-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: 960px) {
  .system-compartment-grid,
  .system-evidence-grid,
  .system-builder-grid,
  .system-filter {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

@media (max-width: 480px) {
  .system-compartment-grid,
  .system-evidence-grid,
  .system-builder-grid,
  .system-filter,
  .system-term-card summary {
    grid-template-columns: 1fr;
  }

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

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