/* Language Toggle isolated styles v6 */
.lang-toggle{
  position:relative;
  display:flex;
  align-items:center;
  padding:0 6px;
  width:49px;
  height:20px;
  border-radius:10px;
  background:rgba(255,255,255,0.12);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  font:600 10px/1 'Inter', sans-serif;
  color:#88755f;           /* milk tea tone */
  cursor:pointer;
  user-select:none;
  transition:background .3s ease;
}

.lang-toggle.lang-en{ justify-content:flex-end; }
.lang-toggle.lang-zh{ justify-content:flex-start; }

.lang-toggle::after{
  content:'';
  position:absolute;
  top:1px;
  left:1px;
  width:19px;              /* switch knob enlarged about five percent */
  height:19px;
  border-radius:50%;
  background:rgba(255,255,255,0.85);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  transition:transform .3s ease;
}

.lang-toggle.lang-zh::after{
  transform:translateX(28px);   /* recalculated for wider knob */
}

.lang-toggle:hover{
  background:rgba(255,255,255,0.2);
}