.fixture-showcase--radical {
  margin-top: 3rem;
  background: transparent;
  border-top-color: var(--gc-signal);
}

.fixture-showcase--radical .fixture-showcase__index {
  color: var(--gc-ink);
}

.fixture-showcase--radical .fixture-witness > code {
  border-left-color: var(--gc-ink);
}

.fixture-model-boundary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--gc-rule);
}

.fixture-model-boundary > div {
  min-height: 7.5rem;
  padding: 1.25rem 1rem 1.35rem 0;
}

.fixture-model-boundary > div + div {
  padding-left: 1.25rem;
  border-left: 1px solid var(--gc-rule);
}

.fixture-model-boundary span {
  display: block;
  color: var(--gc-muted);
  font-size: 0.62rem;
  font-weight: 850;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.fixture-model-boundary strong {
  display: inline-block;
  margin-top: 0.55rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.15rem;
  font-weight: 500;
}

.fixture-model-boundary p {
  margin: 0.55rem 0 0 !important;
  color: var(--gc-muted);
  font-size: 0.76rem;
  line-height: 1.55 !important;
}

.fixture-model-boundary__valid strong {
  color: var(--gc-ink);
}

.fixture-model-boundary__refuted strong {
  color: var(--gc-signal);
  text-decoration: line-through;
  text-decoration-thickness: 0.08em;
}

.fixture-model-boundary code {
  white-space: nowrap;
}

.fixture-series-note {
  display: grid;
  grid-template-columns: minmax(8rem, 0.32fr) 1fr;
  gap: 1.25rem;
  margin: 1rem 0 3rem;
  padding: 1rem 0;
  border-top: 1px solid var(--gc-rule);
  border-bottom: 1px solid var(--gc-rule);
}

.fixture-series-note strong {
  color: var(--gc-signal);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.fixture-series-note p {
  margin: 0 !important;
  color: var(--gc-muted);
  font-size: 0.82rem;
}

@media (max-width: 760px) {
  .fixture-model-boundary,
  .fixture-series-note {
    grid-template-columns: 1fr;
  }

  .fixture-model-boundary > div {
    min-height: auto;
    padding: 1.1rem 0;
  }

  .fixture-model-boundary > div + div {
    padding-left: 0;
    border-top: 1px solid var(--gc-rule);
    border-left: 0;
  }
}