/*
 * LIGHTBOX
 * Overlay de tela cheia para ampliar fotos, com navegação.
 * Componente reutilizável (qualquer galeria pode acioná-lo).
 */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  background-color: var(--color-overlay-strong);
}

.lightbox__img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.lightbox__btn {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  line-height: 1;
}

.lightbox__btn--close {
  top: var(--space-4);
  right: var(--space-4);
  width: 2.5rem;
  height: 2.5rem;
  font-size: var(--text-xl);
}

.lightbox__btn--prev,
.lightbox__btn--next {
  top: 50%;
  transform: translateY(-50%);
  width: 3rem;
  height: 3rem;
  font-size: var(--text-2xl);
}

.lightbox__btn--prev {
  left: var(--space-4);
}

.lightbox__btn--next {
  right: var(--space-4);
}