/* Mejoras compartidas de accesibilidad, interacción y coherencia visual. */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100000;
  padding: 12px 16px;
  border-radius: 4px;
  background: #082369;
  color: #fff;
  font-weight: 700;
  transform: translateY(-160%);
  transition: transform .2s ease;
}

.skip-link:focus { transform: translateY(0); }

:focus-visible {
  outline: 3px solid #d92d27 !important;
  outline-offset: 3px !important;
}

header nav > a {
  padding: 9px 12px !important;
  border-radius: 4px;
  transition: background-color .25s ease, color .25s ease, box-shadow .25s ease;
}

header nav > a:hover,
header nav > a:focus-visible {
  background-color: #082369 !important;
  color: #fff !important;
  box-shadow: 0 0 12px rgba(8, 35, 105, .35);
}

/* El tono anterior (#0f9f98) no alcanzaba el contraste mínimo con blanco. */
.obra-carrusel-badge,
.bg-teal.text-white {
  background-color: #08736f !important;
}

button,
[role="button"],
header button,
.menu-movil-correccion a,
#menu-movil a {
  min-height: 44px;
}

header button,
.social-footer a,
.carrusel-proyectos button,
.obra-carrusel-controles button,
.lightbox-obras button {
  min-width: 44px;
  min-height: 44px;
}

.social-footer a[href="#"] { display: none !important; }
.social-footer:empty { display: none !important; }

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}