.book-cover {
  --book-cover-inline-size: 15rem;
  --book-cover-tilt: -16deg;
  aspect-ratio: 3/4;
  container-type: inline-size;
  inline-size: min(var(--book-cover-inline-size), 100%);
  perspective: 75rem;
  position: relative;
}
.book-cover--sm {
  --book-cover-inline-size: 9rem;
}
.book-cover--lg {
  --book-cover-inline-size: 20rem;
}
.book-cover::before {
  background-color: var(--spruce-base-color-surface);
  background-image: repeating-linear-gradient(90deg, var(--spruce-base-color-border) 0 1px, transparent 1px 3px);
  border: var(--spruce-border-width-base) solid var(--spruce-base-color-border);
  border-end-end-radius: var(--spruce-border-radius-sm);
  border-start-end-radius: var(--spruce-border-radius-sm);
  content: "";
  inset-block: 2%;
  inset-inline: 6% -4%;
  position: absolute;
  transform: rotateY(var(--book-cover-tilt));
  transform-origin: left center;
}
.book-cover__front {
  --spruce-base-color-heading: var(--spruce-btn-color-primary-foreground);
  --spruce-base-color-text: var(--spruce-btn-color-primary-foreground);
  background-color: var(--spruce-btn-color-primary-background);
  background-image: linear-gradient(90deg, color-mix(in srgb, var(--spruce-btn-color-primary-foreground) 18%, transparent) 0 3%, transparent 3% 5%, color-mix(in srgb, var(--spruce-btn-color-primary-foreground) 8%, transparent) 5% 6%, transparent 6%), radial-gradient(circle at 85% 15%, color-mix(in srgb, var(--spruce-btn-color-secondary-background) 60%, transparent), transparent 45%), radial-gradient(circle at 10% 100%, color-mix(in srgb, var(--spruce-btn-color-primary-foreground) 16%, transparent), transparent 50%);
  block-size: 100%;
  border-end-end-radius: var(--spruce-border-radius-md);
  border-end-start-radius: 2px;
  border-start-end-radius: var(--spruce-border-radius-md);
  border-start-start-radius: 2px;
  box-shadow: var(--spruce-shadow-xl);
  color: var(--spruce-btn-color-primary-foreground);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  hyphens: manual;
  justify-content: space-between;
  padding: 12cqi 10cqi 10cqi 14cqi;
  position: relative;
  transform: rotateY(var(--book-cover-tilt));
  transform-origin: left center;
}
.book-cover__edition, .book-cover__author {
  font-size: 6cqi;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin: 0;
  text-transform: uppercase;
}
.book-cover__heading > * {
  margin-block-end: 0;
  margin-block-start: 0;
}
.book-cover__heading > * + * {
  margin-block-start: 0.5rem;
}
.book-cover__title {
  font-family: var(--spruce-font-family-heading);
  font-size: 13cqi;
  font-weight: var(--spruce-font-weight-heading);
  line-height: 1.05;
  text-wrap: balance;
}
.book-cover__subtitle {
  font-size: 6.5cqi;
  line-height: 1.35;
  opacity: 0.85;
}
@media (prefers-reduced-motion: no-preference) {
  .book-cover::before, .book-cover__front {
    transition: transform 0.4s ease;
  }
  .book-cover:hover {
    --book-cover-tilt: -6deg;
  }
}

[dir=rtl] .book-cover::before, [dir=rtl] .book-cover__front {
  transform: rotateY(calc(var(--book-cover-tilt) * -1));
  transform-origin: right center;
}
[dir=rtl] .book-cover__front {
  background-image: linear-gradient(270deg, color-mix(in srgb, var(--spruce-btn-color-primary-foreground) 18%, transparent) 0 3%, transparent 3% 5%, color-mix(in srgb, var(--spruce-btn-color-primary-foreground) 8%, transparent) 5% 6%, transparent 6%), radial-gradient(circle at 15% 15%, color-mix(in srgb, var(--spruce-btn-color-secondary-background) 60%, transparent), transparent 45%), radial-gradient(circle at 90% 100%, color-mix(in srgb, var(--spruce-btn-color-primary-foreground) 16%, transparent), transparent 50%);
  padding: 12cqi 14cqi 10cqi 10cqi;
}