.dataset-group {
  display: grid;
  gap: 8px;
}

.dataset-toggle-btn {
  position: sticky;
  top: 8px;
  z-index: 3;
  width: 100%;
  min-height: 48px;
  border: 2px solid var(--border);
  border-radius: 14px;
  background: #f0fdfa;
  color: var(--text);
  padding: 12px 14px;
  text-align: left;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
}

.dataset-quiz-list {
  display: grid;
  gap: 10px;
  padding-left: 14px;
}

.dataset-quiz-list[hidden] {
  display: none !important;
}

.quiz-list-item {
  display: grid;
  gap: 8px;
  width: 100%;
  min-height: 56px;
  border: 2px solid var(--border);
  border-radius: 14px;
  background: #fff;
  color: var(--text);
  padding: 12px 14px;
  text-align: left;
  cursor: pointer;
}

.quiz-list-item.is-selected {
  border-color: var(--primary);
  box-shadow: inset 0 0 0 1px var(--primary);
}

.quiz-list-item-title {
  display: block;
  color: var(--text);
  font-weight: 700;
}

.quiz-list-item-status {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: #f3f4f6;
  color: var(--subtext);
  font-size: 0.9rem;
  font-weight: 700;
}

.quiz-list-item-status.is-not-started {
  background: #f7efe4;
  color: #7c4a18;
}

.quiz-list-item-status.is-in-progress {
  background: #def7ec;
  color: #0f766e;
}

.quiz-list-item-status.is-finished {
  background: #e8eefc;
  color: #1d4ed8;
}

.dataset-toggle-btn:focus-visible,
.quiz-list-item:focus-visible {
  outline: 3px solid rgba(15, 118, 110, 0.28);
  outline-offset: 2px;
}