.auth {
  min-height: 88vh;
  padding-block: calc(var(--nav-h, 68px) + 2.5rem) 4rem;
}

.auth__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
  gap: clamp(1.75rem, 5vw, 4rem);
  align-items: center;
}

@media (max-width: 860px) {
  .auth__grid {
    grid-template-columns: 1fr;
  }
  /* On a phone the form is the job; the photograph is decoration. */
  .auth__plate {
    display: none;
  }
}

.auth__plate {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: 2px;
  margin: 0;
}

.auth__plate img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.68) contrast(1.08) brightness(0.72);
}

.auth__plate::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 5, 4, 0.15) 0%, rgba(6, 5, 4, 0.75) 100%);
}

.auth__plate figcaption {
  position: absolute;
  left: 1.1rem;
  bottom: 1.1rem;
  z-index: 1;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
  font-size: var(--step-0);
  color: var(--gold-200);
  max-width: 22ch;
}

.auth__in {
  display: grid;
  justify-items: center;
}