/* ============================================================
   GALERÍA DE INFOGRAFÍAS — compartida entre los dos libros
   ============================================================ */

.marco-infografias {
  max-width: 1100px;
}

.marco-infografias h1 {
  font-family: var(--fuente-titulo);
  font-weight: 700;
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  color: var(--blanco);
  text-shadow: var(--sombra-texto);
  margin-bottom: .8rem;
}

.intro-infografias {
  font-family: var(--fuente-cuerpo);
  font-size: 1.15rem;
  color: var(--blanco-tenue);
  max-width: 60ch;
  margin: 0 auto 2.4rem;
  line-height: 1.7;
}

.galeria-infografias {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 1.4rem;
  margin-bottom: 2.4rem;
}

.tarjeta-infografia {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 12px;
  overflow: hidden;
  background: rgba(255, 255, 255, .04);
  transition: transform .3s ease, border-color .3s ease;
}

.tarjeta-infografia:hover {
  transform: translateY(-4px);
  border-color: var(--azul-cielo);
}

.tarjeta-infografia img {
  display: block;
  width: 100%;
  height: auto;
  cursor: zoom-in;
}

.tarjeta-infografia figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .6rem;
  padding: .6rem .8rem;
  font-family: var(--fuente-cuerpo);
  font-size: .9rem;
  color: var(--blanco-tenue);
}

.tarjeta-infografia figcaption .num-infografia {
  white-space: nowrap;
}

.tarjeta-infografia figcaption a {
  font-family: var(--fuente-mano);
  font-size: 1rem;
  color: var(--azul-bruma);
  text-decoration: none;
  white-space: nowrap;
}

.tarjeta-infografia figcaption a:hover {
  color: var(--blanco);
  text-decoration: underline;
}

.volver-libros {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.6rem;
  margin-top: 1rem;
}

.volver-libros a {
  font-family: var(--fuente-mano);
  font-size: 1.1rem;
  color: var(--blanco-tenue);
  text-decoration: none;
  opacity: .85;
  transition: .3s ease;
}

.volver-libros a:hover {
  opacity: 1;
  color: var(--blanco);
}

/* ------------------------------------------------------------
   Visor a pantalla completa (zoom)
   ------------------------------------------------------------ */
.lightbox-infografia {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(6, 12, 24, .94);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  padding: 2rem 1rem;
}

.lightbox-infografia.oculto {
  display: none;
}

.lightbox-infografia img {
  max-width: min(90vw, 700px);
  max-height: 75vh;
  width: auto;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .6);
}

.cerrar-lightbox {
  position: absolute;
  top: 1.2rem;
  right: 1.4rem;
  background: none;
  border: 1px solid rgba(255, 255, 255, .4);
  color: var(--blanco);
  font-size: 1.6rem;
  line-height: 1;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  cursor: pointer;
}

.cerrar-lightbox:hover {
  background: rgba(255, 255, 255, .1);
}

.descargar-lightbox {
  font-family: var(--fuente-mano);
  font-size: 1.25rem;
  color: var(--azul-noche);
  background: var(--blanco);
  border-radius: 999px;
  padding: .55rem 2rem;
  text-decoration: none;
  transition: transform .25s ease, background .25s ease;
}

.descargar-lightbox:hover {
  transform: translateY(-2px);
  background: var(--azul-bruma);
}

@media (max-width: 480px) {
  .galeria-infografias {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
  }
}