.progress-bar-wrap {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.progress-bar-fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 0.2s ease;
}

#quiz-meta {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 0 1.2rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.75rem;
}

.topic-tag {
  display: inline-block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-dark);
  background: #e7ecdf;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  margin: 0 0 0.9rem;
}

#question-text {
  margin: 0 0 1.3rem;
  font-size: 1.25rem;
  line-height: 1.5;
}

textarea {
  width: 100%;
  font-family: inherit;
  font-size: 1rem;
  padding: 0.9rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  resize: vertical;
  background: #fbfaf6;
}

textarea:focus { outline: 2px solid var(--accent); }

.mc-hint {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 0 0.8rem;
}

.mc-option {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 0.6rem;
  cursor: pointer;
  background: #fbfaf6;
  transition: border-color 0.12s ease, background 0.12s ease;
}
.mc-option:hover { border-color: var(--accent); }
.mc-option.selected {
  border-color: var(--accent);
  background: #e7ecdf;
}
.mc-option.is-correct {
  border-color: var(--box5);
  background: #e2ede2;
}
.mc-option.is-wrong {
  border-color: var(--danger);
  background: #f5e6e2;
}
.mc-letter { font-weight: 700; color: var(--accent-dark); }

.actions {
  margin-top: 1rem;
  display: flex;
  justify-content: flex-end;
  gap: 0.7rem;
}

.browse-nav {
  display: flex;
  justify-content: space-between;
  gap: 0.7rem;
  margin-top: 1rem;
}
.browse-nav button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}