html,
body {
  min-height: 100%;
}

body {
  overflow-x: hidden;
  background: #0f0f10;
}

.portal-page {
  width: 100%;
  min-height: 100dvh;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  padding: 0;
  background: #0f0f10;
}

.portal-card {
  position: relative;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  overflow: hidden;
  color: #fffaf2;
  text-decoration: none;
  isolation: isolate;
}

.portal-card img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.01);
  transition: transform 700ms ease, filter 700ms ease;
}

.portal-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.12), rgba(0, 0, 0, 0.56)),
    rgba(0, 0, 0, 0.18);
  transition: background 300ms ease;
}

.portal-card span {
  position: relative;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: #fffaf2;
  font-size: clamp(0.95rem, 1.8vw, 1.35rem);
  line-height: 1;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  text-align: center;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: none;
  text-shadow: 0 0.35rem 1.4rem rgba(0, 0, 0, 0.55);
}

.portal-card span::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -0.75rem;
  width: 2.2rem;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
  transform: translateX(-50%);
}

.portal-card:hover img,
.portal-card:focus-visible img {
  transform: scale(1.045);
  filter: contrast(1.04);
}

.portal-card:hover::before,
.portal-card:focus-visible::before {
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.08), rgba(0, 0, 0, 0.48)),
    rgba(0, 0, 0, 0.1);
}

.portal-card:focus-visible {
  outline: 2px solid #fffaf2;
  outline-offset: -0.6rem;
}

@media (orientation: portrait), (max-width: 52rem) {
  .portal-page {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(2, minmax(0, 1fr));
  }

  .portal-card {
    min-height: 50dvh;
  }

  .portal-card span {
    font-size: clamp(0.9rem, 3.8vw, 1.15rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .portal-card img,
  .portal-card::before {
    transition: none;
  }

  .portal-card:hover img,
  .portal-card:focus-visible img {
    transform: scale(1.01);
  }
}