.chain-book {
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  color: #f6f7f5;
  grid-column: 2;
  grid-row: 1;
  opacity: 0;
  pointer-events: none;
  transform: translateX(2rem);
  transition:
    opacity 320ms ease 100ms,
    transform 680ms cubic-bezier(.16, 1, .3, 1);
}

.chain-book[hidden] {
  display: none;
}

.chain-book.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}

.chain-book-shell {
  display: flex;
  width: 100%;
  height: 100%;
  min-height: 0;
  flex-direction: column;
  padding: 0 .5rem 0 0;
  overflow: hidden;
}

.chain-book-header {
  display: grid;
  width: 100%;
  min-height: 4.5rem;
  flex: 0 0 auto;
  align-items: center;
  padding: 0 0 .7rem;
  border-bottom: 1px solid rgb(255 255 255 / 22%);
  gap: 1rem;
  grid-template-columns: minmax(5.5rem, auto) minmax(0, 1fr) auto;
}

.chain-book-header h1 {
  margin: 0;
  font-size: clamp(1.2rem, 1.8vw, 1.65rem);
  font-weight: 640;
  letter-spacing: -.05em;
  line-height: 1;
  text-align: center;
}

.chain-book-back {
  display: inline-flex;
  width: max-content;
  min-height: 2.35rem;
  align-items: center;
  padding: 0;
  border: 0;
  background: transparent;
  color: rgb(246 247 245 / 68%);
  cursor: pointer;
  font: inherit;
  gap: .55rem;
}

.chain-book-back i {
  font-size: .88rem;
  font-style: normal;
  transition: transform 180ms ease;
}

.chain-book-back span,
.chain-book-count {
  font-size: .62rem;
  font-weight: 630;
}

.chain-book-back:hover,
.chain-book-back:focus-visible {
  color: #fff;
  outline: none;
}

.chain-book-back:hover i,
.chain-book-back:focus-visible i {
  transform: translateX(-.18rem);
}

.chain-book-back:focus-visible {
  box-shadow: 0 2px 0 #fff;
}

.chain-book-count {
  justify-self: end;
  color: rgb(246 247 245 / 48%);
  font-variant-numeric: tabular-nums;
  letter-spacing: .08em;
}

.chain-book-grid {
  display: grid;
  min-height: 0;
  flex: 1 1 auto;
  align-content: start;
  margin: 0;
  padding: .8rem .2rem 2rem 0;
  overflow-y: auto;
  gap: clamp(.55rem, .8vw, .85rem);
  grid-template-columns: repeat(3, minmax(0, 1fr));
  list-style: none;
  overscroll-behavior: contain;
  scrollbar-color: rgb(255 255 255 / 34%) transparent;
  scrollbar-width: thin;
}

.chain-book-grid::-webkit-scrollbar {
  display: block;
  width: 5px;
}

.chain-book-grid::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgb(255 255 255 / 32%);
}

.chain-book-grid:focus-visible {
  outline: 1px solid rgb(255 255 255 / 72%);
  outline-offset: 3px;
}

.chain-book-card {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgb(255 255 255 / 15%);
  background: rgb(12 15 13 / 78%);
}

.chain-book-image {
  --chain-zoom-x: 50%;
  --chain-zoom-y: 50%;

  position: relative;
  aspect-ratio: 5 / 3;
  overflow: hidden;
  border-bottom: 1px solid rgb(255 255 255 / 13%);
  background: #e8e9e9;
}

.chain-book-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform-origin: var(--chain-zoom-x) var(--chain-zoom-y);
  transition: transform 360ms cubic-bezier(.16, 1, .3, 1);
  will-change: transform;
}

@media (hover: hover) and (pointer: fine) {
  .chain-book-image {
    cursor: zoom-in;
  }

  .chain-book-image:hover img {
    transform: scale(1.75);
  }
}

.chain-book-caption {
  display: grid;
  min-height: 4rem;
  align-content: start;
  padding: clamp(.7rem, .9vw, .9rem);
  gap: .28rem;
}

.chain-book-caption h2,
.chain-book-caption p {
  margin: 0;
  overflow-wrap: anywhere;
  word-break: keep-all;
}

.chain-book-caption h2 {
  font-size: clamp(.82rem, .86vw, .94rem);
  font-weight: 640;
  letter-spacing: -.04em;
  line-height: 1.25;
}

.chain-book-caption p {
  color: rgb(246 247 245 / 52%);
  font-size: clamp(.58rem, .62vw, .67rem);
  font-weight: 430;
  letter-spacing: -.018em;
  line-height: 1.45;
}

.resources-body[data-resources-view="guide"][data-resources-tool="chain"] .resource-entry-chain-book {
  align-items: center;
  border-top-color: rgb(255 255 255 / 48%);
  border-bottom-color: rgb(255 255 255 / 48%);
  background: rgb(255 255 255 / 9%);
  box-shadow: inset 2px 0 #fff;
}

.resources-body[data-resources-view="guide"][data-resources-tool="chain"] .resource-entry-chain-book h2 {
  color: #fff;
  font-size: clamp(1.12rem, 1.3vw, 1.3rem);
}

@media (max-width: 59.999rem) {
  .chain-book {
    grid-column: 1;
    grid-row: 2;
    transform: translateY(1.5rem);
  }

  .chain-book.is-visible {
    transform: translateY(0);
  }

  .chain-book-shell {
    padding-right: .35rem;
  }

  .chain-book-header {
    min-height: 3.7rem;
    padding-bottom: .5rem;
  }
}

@media (max-width: 46rem) {
  .chain-book-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 40rem) {
  .chain-book-header {
    min-height: 3.4rem;
    grid-template-columns: minmax(4.8rem, auto) minmax(0, 1fr) auto;
  }

  .chain-book-header h1 {
    font-size: 1.18rem;
  }

  .chain-book-grid {
    gap: .5rem;
    grid-template-columns: 1fr;
    padding-top: .55rem;
  }

  .chain-book-caption {
    min-height: 3.8rem;
    padding: .7rem .8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .chain-book,
  .chain-book-back i,
  .chain-book-image img {
    transition: none;
  }
}