.book-card {
  position: relative;
  cursor: pointer;
}

.book-card .buy::after {
  content: "";
  position: absolute;
  inset: 0;
}

.book-card:focus-within {
  outline: 2px solid var(--gold);
  outline-offset: 5px;
}

.book-card > img.companion-cover {
  object-fit: contain;
  background: #05070d;
  padding: clamp(0.35rem, 1.4vw, 0.9rem);
  filter: none;
}

.alternate > img.companion-cover {
  filter: none;
}