/* Submenús de navegación — flyout en desktop (hover/click/teclado), acordeón en el sheet móvil (tap) */

.nav__item { position: relative; }

.nav__trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3xs);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-ink-2);
  white-space: nowrap;
  padding-block: var(--space-2xs);
  border-bottom: 1px solid transparent;
  transition: color var(--dur-short) var(--ease-out), border-color var(--dur-short) var(--ease-out);
}
.nav__trigger:hover { color: var(--color-ink); border-color: var(--color-accent); }

.nav__chevron {
  width: 14px;
  height: 14px;
  transition: transform var(--dur-short) var(--ease-out);
}
.nav__trigger[aria-expanded="true"] .nav__chevron { transform: rotate(180deg); }

/* ---- Desktop flyout ----
   .nav__panel queda PEGADO al trigger (top: 100%, sin hueco) y el respiro visual lo da su propio
   padding-top — así ese espacio sigue siendo parte del área "hover" y el mouse nunca pasa por una
   zona muerta entre el botón y el panel al bajar hacia él. El contenido visible (fondo, borde,
   sombra, y el pequeño deslizamiento de entrada) vive en .nav__panel-inner. */
.nav__panel {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding-top: var(--space-sm);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--dur-short) var(--ease-out),
              visibility 0s linear var(--dur-short);
  z-index: var(--z-dropdown);
}

.nav__panel-inner {
  min-width: 14rem;
  padding: var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-raised);
  transform: translateY(-6px);
  transition: transform var(--dur-short) var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .nav__item:hover .nav__panel,
  .nav__item.is-open .nav__panel {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity var(--dur-short) var(--ease-out), visibility 0s;
  }
  .nav__item:hover .nav__panel-inner,
  .nav__item.is-open .nav__panel-inner {
    transform: translateY(0);
  }
}
.nav__item.is-open .nav__panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity var(--dur-short) var(--ease-out), visibility 0s;
}
.nav__item.is-open .nav__panel-inner {
  transform: translateY(0);
}

.nav__panel-link {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  white-space: nowrap;
  transition: background-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out);
}
.nav__panel-link:hover,
.nav__panel-link:focus-visible { background: var(--color-paper-2); color: var(--color-ink); }

.nav__panel-label {
  padding: var(--space-xs) var(--space-sm) var(--space-2xs);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-neutral);
}
.nav__panel-label:not(:first-child) { margin-top: var(--space-xs); }

.nav__panel-icon {
  display: inline-flex;
  width: 14px; height: 14px;
  vertical-align: -2px;
  margin-right: var(--space-2xs);
}

@media (prefers-reduced-motion: reduce) {
  .nav__panel,
  .nav__panel-inner { transition-duration: 1ms; }
}

/* ---- Mobile sheet: accordion (tap opens/closes inline) ---- */
@media (max-width: 60rem) {
  .nav__sheet-item { border-bottom: 1px solid var(--color-rule); }
  .nav__sheet-item:last-child { border-bottom: none; }

  .nav__sheet-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding-block: var(--space-md);
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 600;
    text-align: left;
  }
  .nav__sheet-trigger .nav__chevron { width: 20px; height: 20px; }

  .nav__sheet-panel {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows var(--dur-long) var(--ease-in-out);
  }
  .nav__sheet-item.is-open .nav__sheet-panel { grid-template-rows: 1fr; }
  .nav__sheet-panel > div { overflow: hidden; }

  .nav__sheet-panel-link {
    display: block;
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-md);
    color: var(--color-ink-2);
  }
  .nav__sheet-panel-link:hover { color: var(--color-accent); }

  .nav__sheet-panel-label {
    padding: var(--space-sm) var(--space-md) var(--space-2xs);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-neutral);
  }

  @media (prefers-reduced-motion: reduce) {
    .nav__sheet-panel { transition-duration: 1ms; }
  }
}

/* ---- Resaltado temporal al navegar desde el submenú de Formaciones ---- */
.is-highlighted {
  animation: highlight-pulse 1.6s var(--ease-out);
}
@keyframes highlight-pulse {
  0%   { box-shadow: 0 0 0 3px var(--color-accent); }
  70%  { box-shadow: 0 0 0 3px var(--color-accent); }
  100% { box-shadow: 0 0 0 0 transparent; }
}
@media (prefers-reduced-motion: reduce) {
  .is-highlighted { animation-duration: 1ms; }
}