.puzzle-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.puzzle-picker {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  font-size: 13px;
  color: #747a6e;
}
.puzzle-picker select {
  max-width: 100%;
  padding: 9px 12px;
  border: 1px solid #b9beb1;
  border-radius: 8px;
  background: #f7f6f2;
  color: #303c2c;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.puzzle-picker select:focus-visible {
  outline: 3px solid #477653;
  outline-offset: 4px;
}
.puzzle-arrow {
  flex: 0 0 44px;
  height: 44px;
  border: 1px solid #b9beb1;
  border-radius: 50%;
  background: transparent;
  color: #454d3f;
  font-size: 20px;
}
.puzzle-arrow:hover:not(:disabled) { background: #e9e9df; }