/* Language switcher — segmented control */
.lang-switch {
  --lang-track-bg: #f1f5f9;
  --lang-track-border: #e2e8f0;
  --lang-btn-color: #64748b;
  --lang-btn-hover: #334155;
  --lang-btn-active-bg: #ffffff;
  --lang-btn-active-color: #1d4ed8;
  --lang-btn-active-ring: rgba(37, 99, 235, 0.18);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.lang-switch--inline {
  flex-direction: row;
  align-items: center;
  gap: 0.65rem;
}

.lang-switch--compact {
  flex-direction: row;
  align-items: center;
  gap: 0;
}

.lang-switch__label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #94a3b8;
  line-height: 1;
}

.lang-switch--compact .lang-switch__label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.lang-switch__btns {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border-radius: 999px;
  background: var(--lang-track-bg);
  border: 1px solid var(--lang-track-border);
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.04);
}

.lang-btn {
  position: relative;
  min-width: 2.35rem;
  padding: 0.34rem 0.58rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--lang-btn-color);
  font-family: Inter, system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1;
  cursor: pointer;
  transition:
    color 0.16s ease,
    background 0.16s ease,
    box-shadow 0.16s ease,
    transform 0.16s ease;
}

.lang-btn:hover:not(.lang-btn--active) {
  color: var(--lang-btn-hover);
  background: rgba(255, 255, 255, 0.55);
}

.lang-btn:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.45);
  outline-offset: 2px;
}

.lang-btn--active {
  color: var(--lang-btn-active-color);
  background: var(--lang-btn-active-bg);
  box-shadow:
    0 1px 2px rgba(15, 23, 42, 0.08),
    0 0 0 1px var(--lang-btn-active-ring);
}

.lang-btn--active:hover {
  color: var(--lang-btn-active-color);
  background: var(--lang-btn-active-bg);
}

.topnav-admin__lang .lang-switch {
  margin: 0;
}

.topnav-admin__lang .lang-switch__btns {
  min-height: 2rem;
}

.header__lang {
  margin-right: 0.5rem;
}

.login-lang {
  margin-bottom: 0;
}

.login-lang .lang-switch {
  align-items: flex-start;
}

.login-lang .lang-switch__label {
  color: var(--login-muted, #94a3b8);
}

/* Dark login shells */
.login-card .lang-switch,
.main-admin .login-lang .lang-switch {
  --lang-track-bg: rgba(255, 255, 255, 0.06);
  --lang-track-border: rgba(148, 163, 184, 0.22);
  --lang-btn-color: #94a3b8;
  --lang-btn-hover: #e2e8f0;
  --lang-btn-active-bg: rgba(255, 255, 255, 0.12);
  --lang-btn-active-color: #f8fafc;
  --lang-btn-active-ring: rgba(148, 163, 184, 0.28);
}

@media (max-width: 640px) {
  .lang-btn {
    min-width: 2rem;
    padding: 0.3rem 0.45rem;
    font-size: 0.66rem;
  }

  .topnav-admin__lang .lang-switch__btns {
    padding: 0.14rem;
  }
}

@media (max-width: 420px) {
  .lang-btn {
    min-width: 1.85rem;
    padding: 0.28rem 0.38rem;
    font-size: 0.62rem;
    letter-spacing: 0.02em;
  }
}