#lang-bar {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 1000;
  display: flex;
  gap: 4px;
  background: rgba(0, 30, 30, 0.92);
  border: 1px solid #00ffaa;
  border-radius: 8px;
  padding: 4px;
  box-shadow: 0 0 12px rgba(0, 255, 170, 0.25);
}

#lang-bar button {
  background: transparent;
  border: none;
  color: #66ffff;
  font-size: 14px;
  font-weight: bold;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: 0.2s;
}

#lang-bar button:hover {
  color: #fff;
  background: rgba(0, 255, 170, 0.15);
}

#lang-bar button.active {
  background: linear-gradient(135deg, #00bbff, #00ffaa);
  color: #000;
}