/* --- MODAL & TRANSICIÓN ESCALONADA --- */
.modal-galeria{
  display:none; position:fixed; inset:0; z-index:9999;
  background:rgba(0,0,0,0); /* inicia transparente */
  justify-content:center; align-items:center; padding:10px; box-sizing:border-box;
  opacity:0; transition:background .3s ease, opacity .3s ease;
}
.modal-galeria.show{ display:flex; background:rgba(0,0,0,.9); opacity:1; }

.modal-content{
  position:relative; width:100%; max-width:1000px; max-height:90vh; background:transparent;
  display:flex; flex-direction:column; align-items:center;
}

/* Título */
.modal-titulo{ margin:0 0 12px; color:#fff; font-size:20px; font-weight:600; text-align:center; }

/* Cerrar con CSS (X) */
.modal-close{
  position:absolute; top:14px; right:18px; width:36px; height:36px; cursor:pointer;
  background:transparent; border:0; outline:none;
}
.modal-close::before, .modal-close::after{
  content:""; position:absolute; top:50%; left:50%; width:22px; height:2px; background:#fff; border-radius:2px;
  transform-origin:center; transition:background .25s ease;
}
.modal-close::before{ transform:translate(-50%,-50%) rotate(45deg); }
.modal-close::after{  transform:translate(-50%,-50%) rotate(-45deg); }
.modal-close:hover::before, .modal-close:hover::after{ background:#ffcc00; }

/* Slider e imagen con retardo (después del fondo) */
#modal-slider{ position:relative; display:flex; justify-content:center; align-items:center; }
#modal-slider img{
  max-width:90vw; max-height:70vh; object-fit:contain; border-radius:6px;
  box-shadow:0 4px 15px rgba(0,0,0,.6);
  opacity:0; transform:scale(.9);
  transition:opacity .4s ease, transform .4s ease; transition-delay:.25s;
}
.modal-galeria.show #modal-slider img{ opacity:1; transform:scale(1); }

/* Botones flecha: sin texto en HTML, sólo CSS */
.slider-btn{
  position:absolute; top:50%; transform:translateY(-50%);
  width:44px; height:44px; border-radius:50%; border:0; cursor:pointer;
  background:rgba(255,255,255,.15); transition:background .25s ease, transform .2s ease;
  outline:none; z-index:20;
}
.slider-btn:hover{ background:rgba(255,255,255,.3); transform:translateY(-50%) scale(1.06); }
.slider-btn:active{ transform:translateY(-50%) scale(.98); }

/* Flechas dibujadas con ::before (triángulos mediante borde) */
.slider-btn::before{
  content:""; position:absolute; top:50%; left:50%; width:0; height:0; transform:translate(-50%,-50%);
  border-top:8px solid transparent; border-bottom:8px solid transparent;
}
.slider-btn.prev{ left:-60px; }
.slider-btn.next{ right:-60px; }
.slider-btn.prev::before{ border-right:12px solid #fff; margin-left:-2px; }
.slider-btn.next::before{ border-left:12px solid #fff;  margin-left:2px; }

/* Índice */
#foto-indice{ margin-top:12px; font-size:14px; color:#ccc; font-family:Arial, sans-serif; }

/* Responsive */
@media (max-width:768px){
  .slider-btn.prev{ left:10px; } .slider-btn.next{ right:10px; }
  .slider-btn{ width:40px; height:40px; }
}

/* Imagen dentro del slider con transición */
#modal-slider img {
  max-width: 90vw;
  max-height: 70vh;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.6);

  opacity: 0;
  transform: translateX(0) scale(0.98);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

/* Estado visible */
#modal-slider img.show {
  opacity: 1;
  transform: translateX(0) scale(1);
}

/* Animación según dirección */
#modal-slider img.slide-left {
  transform: translateX(-40px);
}
#modal-slider img.slide-right {
  transform: translateX(40px);
}