#tg-lightbox {
  position: fixed;
  inset: 0;
  z-index: 999999;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.86);
}
#tg-lightbox.tg-open { display: flex; }

#tg-lightbox .tg-lb-inner {
  position: relative;
  max-width: 70vw;  /* 70% del ancho visible */
  max-height: 70vh; /* 70% del alto visible */
  display: flex;
  align-items: center;
  justify-content: center;
}
#tg-lightbox img.tg-lb-img {
  max-width: 70vw;   /* 70% */
  max-height: 70vh;  /* 70% */
  width: auto;
  height: auto;
  display: block;
  object-fit: contain;
}

#tg-lightbox .tg-lb-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  border: 0;
  background: rgba(0,0,0,0.55);
  color: #fff;
  font-size: 28px;
  line-height: 1;
  padding: 12px 14px;
  cursor: pointer;
  border-radius: 10px;
  user-select: none;
}
#tg-lightbox .tg-lb-prev { left: -56px; }
#tg-lightbox .tg-lb-next { right: -56px; }

#tg-lightbox .tg-lb-close {
  position: absolute;
  top: -54px;
  right: 0;
  border: 0;
  background: rgba(0,0,0,0.55);
  color: #fff;
  font-size: 24px;
  padding: 10px 12px;
  cursor: pointer;
  border-radius: 10px;
}

#tg-lightbox .tg-lb-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -42px;
  color: #fff;
  font-size: 14px;
  text-align: center;
  opacity: 0.9;
}

#tg-lightbox .tg-lb-loader {
  color: #fff;
  font-size: 16px;
  padding: 12px 14px;
  background: rgba(0,0,0,0.55);
  border-radius: 10px;
}

@media (max-width: 640px) {
  /* En móvil dejamos un poquito más grande para que se vea bien */
  #tg-lightbox .tg-lb-inner { max-width: 92vw; max-height: 82vh; }
  #tg-lightbox img.tg-lb-img { max-width: 92vw; max-height: 82vh; }
  #tg-lightbox .tg-lb-prev { left: 8px; }
  #tg-lightbox .tg-lb-next { right: 8px; }
  #tg-lightbox .tg-lb-close { top: 8px; right: 8px; }
  #tg-lightbox .tg-lb-caption { bottom: 12px; }
}