/*
 * Selector de idioma desplegable (patron disclosure).
 *
 * Markup en template-parts/dynamic-header.php, JS en
 * assets/js/lang-switcher.js. Sustituye a la lista plana EN / ES que
 * vivia en components.css (bloque retirado al pasar a 6 idiomas).
 * Solo design tokens de tokens.css — sin valores hardcodeados.
 */

.lang-switcher {
  position: relative;
  display: inline-flex;
  margin-inline-start: var(--space-3);
}

.lang-switcher__toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.lang-switcher__toggle:hover,
.lang-switcher__toggle:focus-visible {
  color: var(--accent);
}

.lang-switcher__toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.lang-switcher__toggle[aria-expanded="true"] {
  color: var(--accent);
  border-color: var(--border-default);
}

/* Caret: triangulo CSS que rota al abrir. */
.lang-switcher__caret {
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  transition: transform var(--transition-fast);
}

.lang-switcher__toggle[aria-expanded="true"] .lang-switcher__caret {
  transform: rotate(180deg);
}

.lang-switcher__menu {
  position: absolute;
  top: calc(100% + var(--space-1));
  right: 0;
  z-index: 120;
  min-width: 64px;
  margin: 0;
  padding: var(--space-1) 0;
  list-style: none;
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

.lang-switcher__menu[hidden] {
  display: none;
}

.lang-switcher__item {
  margin: 0;
  padding: 0;
}

.lang-switcher__item a {
  display: block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-secondary);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.lang-switcher__item a:hover,
.lang-switcher__item a:focus-visible {
  color: var(--accent);
  background: rgba(255, 214, 10, 0.06);
}

.lang-switcher__item--current a {
  color: var(--accent);
  font-weight: 700;
}

@media (max-width: 768px) {
  .lang-switcher {
    margin-inline-start: var(--space-2);
  }

  .lang-switcher__menu {
    right: calc(-1 * var(--space-2));
  }
}