.lightbox {
  border: none;
  padding: 0;
  border-radius: 18px;
  max-width: min(500px, 80vw); 
  background: transparent;
}

.lightbox::backdrop {
  background: rgba(0,0,0,.65);
}

.lightbox__img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 18px;
  background: #111;
}

.lightbox__close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 999px;
  background: rgba(255,255,255,.15);
  font-size: 26px;
  cursor: pointer;
  outline: none;
}
.lightbox__close:focus {
  outline: none;
}
.lightbox__close:hover {
  background: rgba(255,255,255,.3);
  transition: background .3s ease;
}

.lightbox__nav{
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: none;
  background: rgba(255,255,255,.15);
  color: black;
  font-size: 20px;
  display: grid;
  place-items: center;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: transform .15s ease, background .15s ease, opacity .15s ease;
  z-index: 2;
}

.lightbox__nav:hover{
  background: rgba(255,255,255,.3);
  transform: translateY(-50%) scale(1.04);
}

.lightbox__nav:active{
  transform: translateY(-50%) scale(.98);
}

.lightbox__nav:focus{
  outline: none;
}

.lightbox__nav:focus-visible{
  outline: 2px solid rgba(255,255,255,.7);
  outline-offset: 2px;
}

.lightbox__nav--prev{ left: 14px; }
.lightbox__nav--next{ right: 14px; }


.lightbox__nav.is-hidden{
  opacity: 0;
  pointer-events: none;
}

.lightbox__nav,
.lightbox__close{
  color: var(--text);
  -webkit-appearance: none;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
}


@media (max-width: 720px){
  .lightbox__nav--prev{ left: 10px; }
  .lightbox__nav--next{ right: 10px; }
}