.lang-switch {
  display: inline-flex;
  flex-shrink: 0;
  gap: 0;
  padding: 3px;
  border-radius: 999px;
  background: rgba(61, 44, 30, 0.08);
  border: 1px solid rgba(61, 44, 30, 0.1);
}
.lang-switch button {
  border: none;
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  width: 2.35rem;
  height: 1.85rem;
  padding: 0;
  border-radius: 999px;
  color: var(--brown, #3d2c1e);
  opacity: 0.55;
  transition: background 0.2s, opacity 0.2s;
}
.lang-switch button.is-active {
  opacity: 1;
  background: #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}