/* ==========================================================================
   The photograph, on its own
   Clicking a plate used to open a project page that always described the
   same house. It opens the photograph now: the file itself, at the size it
   was made, on a dark ground with nothing else on the screen.
   ========================================================================== */
.pv {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: clamp(.6rem, 2.5vw, 2.2rem);
  background: rgba(6, 6, 6, .94);
  opacity: 0;
  transition: opacity .32s cubic-bezier(.22, 1, .36, 1);
}
.pv.is-open { opacity: 1; }
.pv[hidden] { display: none; }

.pv__img {
  display: block;
  /* Whole photograph on screen, never upscaled past its own pixels. */
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  transform: scale(.985);
  transition: transform .32s cubic-bezier(.22, 1, .36, 1);
  cursor: zoom-out;
}
.pv.is-open .pv__img { transform: scale(1); }

.pv__close {
  position: absolute;
  top: clamp(.5rem, 2vw, 1.4rem);
  right: clamp(.5rem, 2vw, 1.4rem);
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 50%;
  background: rgba(0, 0, 0, .4);
  color: #fff;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  transition: background-color .3s ease, border-color .3s ease, transform .3s ease;
}
.pv__close:hover {
  background: rgba(255, 255, 255, .14);
  border-color: rgba(255, 255, 255, .5);
  transform: rotate(90deg);
}

/* While it is open the page behind must not scroll under it. */
.pv-lock { overflow: hidden; }

@media (prefers-reduced-motion: reduce) {
  .pv, .pv__img, .pv__close { transition: none; }
}