.language-selector {
  position: fixed;
  top: var(--space-xl);
  right: var(--space-xl);
  z-index: var(--z-dropdown);
  animation: fadeInUp var(--transition-slow) ease-out 0.6s both;
}

.language-selector-inner {
  position: relative;
}

.language-display-button {
  background: var(--glass-bg);
  color: var(--color-primary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  backdrop-filter: blur(10px);
  cursor: pointer;
  transition: all var(--transition-normal);
  outline: none;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-width: 140px;
  justify-content: space-between;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.language-display-button:hover {
  background: var(--glass-hover);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

.language-display-button:focus {
  border-color: var(--glass-focus);
  box-shadow: var(--shadow-focus);
}

.language-display-button.active {
  background: var(--glass-hover);
  border-color: var(--glass-focus);
}

.dropdown-arrow {
  transition: transform var(--transition-normal);
  opacity: 0.7;
}

.language-display-button.active .dropdown-arrow {
  transform: rotate(180deg);
}

.language-dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--space-sm);
  background: var(--bg-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
  padding: var(--space-xs) 0;
  min-width: 160px;
  opacity: 0;
  transform: translateY(-10px);
  transition: all var(--transition-normal);
  pointer-events: none;
  visibility: hidden;
}

.language-dropdown-menu.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
  visibility: visible;
}

.language-dropdown-menu.hidden {
  display: none !important;
}

.language-option {
  /* <button> para ser alcancavel por teclado; zera o visual nativo. */
  width: calc(100% - 0.25rem);
  background: none;
  border: none;
  font-family: inherit;
  text-align: left;
  color: var(--color-primary);
  padding: 0.75rem var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  position: relative;
  border-radius: var(--radius-sm);
  margin: 0.125rem;
}

.language-option:hover {
  background: rgba(255, 255, 255, 0.1);
}

.language-option:focus-visible {
  outline: 2px solid var(--glass-focus);
  outline-offset: -2px;
}

.language-option.selected {
  background: var(--color-accent);
  font-weight: var(--font-weight-semibold);
}

.language-option.selected .check-icon {
  opacity: 1;
}

.check-icon {
  font-size: var(--font-size-base);
  line-height: 1;
  color: var(--color-primary);
  opacity: 0;
  transition: opacity var(--transition-fast);
  font-weight: var(--font-weight-bold);
}

@media (max-width: 768px) {
  .language-selector {
    top: var(--space-md);
    right: var(--space-md);
  }

  .language-display-button {
    font-size: var(--font-size-base);
    padding: 0.6rem 0.8rem;
    min-width: 140px;
    min-height: 40px;
  }

  .language-dropdown-menu {
    min-width: 160px;
  }

  .language-option {
    font-size: var(--font-size-base);
    padding: 0.7rem 0.9rem;
    min-height: 42px;
  }
}

@media (max-width: 480px) {
  .language-selector {
    top: var(--space-sm);
    right: var(--space-sm);
  }

  .language-display-button {
    font-size: 0.85rem;
    padding: var(--space-sm) 0.7rem;
    min-width: 130px;
    min-height: 36px;
  }

  .language-dropdown-menu {
    min-width: 150px;
  }

  .language-option {
    font-size: 0.85rem;
    padding: 0.6rem 0.8rem;
    min-height: 38px;
  }
}