.icon-btn {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  font-size: 1.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn {
  background: var(--accent);
  color: var(--accent-text);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 0.7rem 1.1rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn.ghost:hover {
  border-color: var(--accent);
}

.btn-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.badge {
  background: var(--surface-2);
  color: var(--text-muted);
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  font-size: 0.8rem;
  white-space: nowrap;
}

.err-pill {
  background: var(--wrong-bg);
  color: var(--wrong);
  padding: 0.05rem 0.45rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.feedback {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border-left: 3px solid var(--accent);
}

.feedback.good {
  border-left-color: var(--correct);
}

.feedback.bad {
  border-left-color: var(--wrong);
}

.feedback strong {
  display: block;
  margin-bottom: 0.25rem;
}

.progress {
  height: 6px;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 1.25rem;
}

.progress > div {
  height: 100%;
  background: var(--accent);
  transition: width 0.25s ease;
}