/* Tab Dán đề — Thêm đề */
.card.exam-paste-active > *:not(.add-mode-tabs):not(.exam-paste-panel) {
  display: none !important;
}

.card.exam-paste-active .exam-paste-panel {
  display: block;
}

.exam-paste-panel {
  display: none;
  margin-top: 0.25rem;
}

.exam-paste-textarea {
  width: 100%;
  min-height: 280px;
  padding: 0.75rem 0.85rem;
  font-family: Consolas, 'Segoe UI', system-ui, sans-serif;
  font-size: 0.92rem;
  line-height: 1.5;
  border: 1px solid var(--gray-200, #dde3ec);
  border-radius: var(--radius-sm, 8px);
  resize: vertical;
  box-sizing: border-box;
}

.exam-paste-textarea:focus {
  outline: 2px solid rgba(21, 101, 192, 0.35);
  border-color: var(--blue-mid, #1976d2);
}

.exam-paste-hint {
  margin: 0.45rem 0 0;
  font-size: 0.88rem;
  color: var(--gray-600, #5a6578);
  line-height: 1.45;
}

.exam-paste-sample-link {
  color: var(--blue, #1565c0);
  text-decoration: underline;
  cursor: pointer;
}

.exam-paste-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.exam-paste-required {
  color: var(--red, #c62828);
}

.exam-paste-callout-hint {
  margin: 0 0 0.65rem;
  padding: 0.5rem 0.65rem;
  background: rgba(21, 101, 192, 0.08);
  border-radius: var(--radius-sm, 8px);
  font-size: 0.9rem;
  line-height: 1.45;
}

.add-mode-tab.exam-paste-tab.active {
  background: var(--blue-light, #e3f2fd);
  color: var(--blue-dark, #0d47a1);
  border-color: var(--blue-mid, #1976d2);
}

@media (max-width: 600px) {
  .exam-paste-textarea {
    min-height: 220px;
    font-size: 16px;
  }
}