.lang-picker {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 1000;
  transition: opacity 0.4s ease;
}

.lang-picker.hidden {
  opacity: 0;
  pointer-events: none;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border: none;
  background: transparent;
  color: rgba(0,0,0,.45);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 6px;
  transition: background .15s ease, color .15s ease;
  -webkit-mask-image: -webkit-radial-gradient(white, black);
  mask-image: radial-gradient(white, black);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  transform: translateZ(0);
}

.lang-btn:hover {
  background: rgba(0,0,0,.05);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: rgba(0,0,0,.5);
}

.lang-btn svg {
  width: 16px;
  height: 16px;
}

.lang-btn .chevron {
  width: 12px;
  height: 12px;
  transition: transform .2s ease;
}

.lang-picker.open .lang-btn .chevron {
  transform: rotate(180deg);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,.12), 0 0 0 1px rgba(0,0,0,.05);
  padding: 4px;
  min-width: 120px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all .15s ease;
  -webkit-mask-image: -webkit-radial-gradient(white, black);
  mask-image: radial-gradient(white, black);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.lang-picker.open .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: block;
  width: 100%;
  padding: 8px 12px;
  border: none;
  background: none;
  text-align: left;
  font-size: 13px;
  font-weight: 500;
  color: #333;
  border-radius: 4px;
  cursor: pointer;
  transition: background .1s ease;
}

.lang-option:hover {
  background: rgba(0,0,0,.05);
}

.lang-option.active {
  background: rgba(0,0,0,.08);
}