/**
 * WCAG 2.1 AA — accesibilidad
 */

/* Skip link (2.4.1 Bypass Blocks) */
.skip-link {
  position: absolute;
  top: 0;
  left: var(--side-margin);
  z-index: 1000;
  padding: 0.75rem 1.25rem;
  background: var(--color-text);
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 0 0 0.25rem 0.25rem;
  transform: translateY(-120%);
  transition: transform 0.2s;
}

.skip-link:focus {
  transform: translateY(0);
  outline: none;
}

/* Focus visible (2.4.7) — contraste ≥ 3:1 sobre fondo */
:focus {
  outline: none;
}

:focus-visible {
  outline: var(--focus-outline-width) solid var(--color-focus-ring);
  outline-offset: var(--focus-outline-offset);
}

.site-nav__link:focus-visible {
  outline-color: var(--color-accent);
  outline-offset: 0.125rem;
}

.site-nav__sublink:focus-visible {
  outline-color: var(--color-accent);
  outline-offset: -0.125rem;
}

.btn:focus-visible,
.lang-switcher__toggle:focus-visible,
.lang-switcher__option:focus-visible {
  outline-color: var(--color-teal);
  outline-offset: 0.125rem;
}

.section-gallery__open:focus-visible,
.section-gallery .swiper-button-prev:focus-visible,
.section-gallery .swiper-button-next:focus-visible,
.gallery-lightbox__close:focus-visible,
.gallery-lightbox__prev:focus-visible,
.gallery-lightbox__next:focus-visible,
.video-modal__close:focus-visible {
  outline-color: var(--color-focus-ring);
  box-shadow: 0 0 0 0.125rem var(--color-teal);
}

.rollover:focus-visible {
  outline-color: var(--color-teal);
  background: rgba(1, 103, 104, 0.08);
}

/* Language switcher */
.lang-switcher__toggle:focus-visible {
  outline-color: var(--color-accent);
}

.lang-switcher__option:focus-visible {
  outline-color: var(--color-teal);
  outline-offset: -0.125rem;
}

/* Reduced motion (2.3.3) */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .skip-link {
    transition: none;
  }

  .site-nav__link::after {
    transition: none;
    transform: scaleX(1);
  }

  .site-nav__link:not(.site-nav__link--active)::after {
    transform: scaleX(0);
  }

  .section-media-block--fixed-bg .section-media-block__media::before,
  .section-media--fixed-bg::before {
    background-attachment: scroll;
  }

  .section-media-block--fixed-bg .section-media-block__media img.visually-hidden,
  .section-media--fixed-bg > img.visually-hidden {
    position: static;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: visible;
    clip-path: none;
    white-space: normal;
    border: 0;
  }

  .animate-on-scroll,
  .animate-on-scroll .section-article__inner > *,
  .section-profile.animate-on-scroll .section-profile__aside,
  .section-profile.animate-on-scroll .section-profile__content > *,
  .section-person.animate-on-scroll .section-person__quote,
  .section-person.animate-on-scroll .section-person__media,
  body:not(.is-loaded) .site-header .header-title,
  body:not(.is-loaded) #introduccion .section-media-block__text {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .btn--read-more:hover::after,
  .btn--read-more:focus-visible::after {
    transform: scaleX(1);
  }

  .read-more-panel,
  .read-more-panel__inner {
    transition: none !important;
  }

  .read-more-panel.is-expanded .read-more-panel__inner {
    opacity: 1;
  }

  .qbus-map__lines,
  .qbus-map__lines path,
  .qbus-map__pin,
  .qbus-map__label {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
    clip-path: none !important;
  }

  .qbus-map__pin {
    transform: translate(-50%, -100%) !important;
  }

  .qbus-map__label:not(.qbus-map__label--left) {
    transform: translateX(-50%) !important;
  }
}

/* High contrast tooltips — texto oscuro sobre fondo claro alternativo */
.rollover__tip {
  background: var(--color-text);
  color: var(--color-white);
  border: 0.0625rem solid var(--color-white);
}

/* Video modal — bloqueo scroll */
body.modal-open {
  overflow: hidden;
}

/* Decorative overlays no leídos por AT */
.section-media-block__overlay,
.site-credits__bg {
  pointer-events: none;
}

/* Read more — panel anunciado (altura animada vía grid en styles.css) */

/* Target size mínimo 44×44 en controles táctiles (2.5.5 AAA aspiracional, 1.5rem+ en desktop) */
.section-gallery__open,
.section-gallery .swiper-button-prev,
.section-gallery .swiper-button-next,
.gallery-lightbox__close,
.gallery-lightbox__prev,
.gallery-lightbox__next {
  min-width: 2.75rem;
  min-height: 2.75rem;
}