.research-tabs {
  display: grid;
  gap: 1rem;
  margin-bottom: 1rem;
}

.research-tab-list {
  display: flex;
  gap: 0.25rem;
  border-bottom: 1px solid var(--rule);
}

.research-tab {
  min-height: 3.25rem;
  margin: 0 0 -1px;
  border: 1px solid transparent;
  border-bottom: 0;
  border-radius: 6px 6px 0 0;
  background: transparent;
  color: var(--muted);
  padding: 0.75rem 1.2rem;
  font: inherit;
  font-size: 1rem;
  font-weight: 750;
  white-space: nowrap;
  cursor: pointer;
}

.research-tab:hover {
  background: var(--hover-bg);
  color: var(--accent-dark);
}

.research-tab[aria-selected="true"] {
  border-color: var(--rule);
  border-bottom-color: var(--paper);
  background: var(--paper);
  color: var(--foreground);
}

.research-tab:focus-visible {
  position: relative;
  z-index: 1;
  outline: 3px solid rgba(94, 124, 145, 0.45);
  outline-offset: -3px;
}

.research-tab-panel {
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--band-bg);
  padding: 1rem;
}

.research-tab-panel[hidden] {
  display: none;
}

@media (max-width: 560px) {
  .research-tab {
    min-height: 3rem;
    padding: 0.65rem 0.95rem;
    font-size: 0.95rem;
  }
}