/* fundo escuro */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
  backdrop-filter: blur(10px);
}

/* quando é o alvo */
.lightbox:target {
  display: flex;
}

/* caixa central */
.lightbox-content {
  background: var(--div-bg);
  padding: var(--div-padding);
  border: var(--div-border);
  max-width: 90%;
  max-height: 90%;
  text-align: center;
  position: relative;
}

/* imagem grande */
.lightbox-content img {
  max-width: 100%;
  max-height: 70vh;
}

/* legenda */
.caption {
  margin-top: 10px;
  font-size: 14px;
}

/* botão fechar */
.close {
  position: absolute;
  top: 8px;
  right: 10px;
  text-decoration: none;
  font-size: 20px;
  color: #000;
}