/* Bookkit Research (R21B): reader-facing research UI. Neutral by design: relation and tier
are text labels, never color-coded truth signals. Works without
JavaScript (native details/summary, server-rendered content). */

.research-card {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--bookkit-border);
  border-radius: 8px;
  background: var(--bookkit-card);
}

.research-card__title {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.research-card__status,
.research-card__counts,
.research-card__notice {
  margin: 0.4rem 0;
  color: var(--bookkit-muted);
}

.research-card__counts {
  font-size: 0.95rem;
}

.research-badge {
  display: inline-block;
  padding: 0.1rem 0.6rem;
  border: 1px solid var(--bookkit-border);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--bookkit-text);
  background: var(--bookkit-surface);
}

.research-card__date {
  margin-left: 0.6rem;
  font-size: 0.9rem;
}

.research-card__link {
  font-weight: 600;
}

.research-card__live {
  font-size: 0.85rem;
  color: var(--bookkit-muted);
}

.research-page {
  max-width: var(--bookkit-content-width);
}

.research-page__title {
  margin-bottom: 0.5rem;
}

.research-back {
  margin: 0 0 1rem;
}

.research-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  margin: 1rem 0 2rem;
  padding: 0;
  list-style: none;
}

.research-overview__counts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.5rem;
  margin: 0.75rem 0;
  padding: 0;
  list-style: none;
}

.research-notice {
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--bookkit-border);
  background: var(--bookkit-surface);
}

.research-evidence-group h2,
.research-gaps h2,
.research-sources h2,
.research-thesis h2 {
  margin-top: 2rem;
}

.research-evidence {
  margin: 1rem 0;
  padding: 1rem 1.25rem;
  border: 1px solid var(--bookkit-border);
  border-radius: 6px;
  background: var(--bookkit-card);
}

.research-evidence__relation {
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.research-evidence__tier {
  margin: 0.15rem 0 0.6rem;
  font-size: 0.85rem;
  color: var(--bookkit-muted);
}

.research-evidence__field {
  font-weight: 600;
}

.research-evidence p {
  margin: 0.35rem 0;
}

.research-collapse {
  margin: 1rem 0;
  border: 1px solid var(--bookkit-border);
  border-radius: 6px;
  background: var(--bookkit-card);
}

.research-collapse > summary {
  padding: 0.75rem 1.25rem;
  cursor: pointer;
  font-weight: 600;
}

.research-collapse .research-evidence {
  margin: 1rem 1.25rem;
}

.research-source {
  margin: 1rem 0;
  padding: 1rem 1.25rem;
  border: 1px solid var(--bookkit-border);
  border-radius: 6px;
  background: var(--bookkit-card);
}

.research-source__title {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}

.research-source__meta,
.research-source__ids,
.research-source__provenance {
  margin: 0.25rem 0;
  font-size: 0.9rem;
  color: var(--bookkit-muted);
}

.research-id {
  display: inline-block;
  margin-right: 0.5rem;
  padding: 0 0.45rem;
  border: 1px solid var(--bookkit-border);
  border-radius: 4px;
  font-size: 0.8rem;
}

.research-thesis__concepts {
  font-size: 0.9rem;
  color: var(--bookkit-muted);
}

.research-experiment,
.research-addition {
  margin: 0.75rem 0;
  padding: 0.75rem 1rem;
  border: 1px solid var(--bookkit-border);
  border-radius: 6px;
}

.research-provenance {
  margin-top: 2rem;
  font-size: 0.85rem;
  color: var(--bookkit-muted);
}

.research-provenance code {
  font-size: 0.8rem;
}

.research-refresh {
  margin-top: 1.5rem;
}

.research-refresh__button {
  cursor: pointer;
}

.research-refresh__button[disabled] {
  cursor: wait;
  opacity: 0.65;
}

.research-refresh__status {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

@media (max-width: 640px) {
  .research-card {
    padding: 1rem;
  }

  .research-evidence,
  .research-source {
    padding: 0.75rem;
  }
}