.page-section {
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.page-section.active {
    display: block;
    opacity: 1;
}

.lang-switch {
  display: flex;
  gap: 8px;
}

.lang-btn {
  background: transparent;
  border: 1px solid #334155;
  color: #94a3b8;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s ease;
}

.lang-btn.active, .lang-btn:hover {
  background: #4f46e5;
  color: #ffffff;
  border-color: #4f46e5;
}