#lang-toggle {
  position: fixed;
  top: 0.2rem;
  /* sit just left of #theme-toggle (right: calc(50% - 250px), ~50px wide, 8px gap) */
  right: calc(50% - 250px + 58px);

  z-index: 9999;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--text);
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  box-shadow: var(--shadow);
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

#lang-toggle:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--accent);
}

:root.light #lang-toggle {
  background: rgba(0,0,0,0.05);
  border: 1px solid rgba(0,0,0,0.12);
}

:root.light #lang-toggle:hover {
  border-color: var(--accent);
}

@media (max-width: 1200px) {
  #lang-toggle {
    right: 76px; /* 20px (theme) + ~48px (theme button) + 8px gap */
  }
}