.book-detail-main {
  padding-top: 72px;
}

.book-detail-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 96px 0 80px;
  background:
    radial-gradient(circle at 22% 38%, rgba(184,155,94,.08), transparent 32%),
    linear-gradient(180deg, #070707, #0c0c0d);
}

.book-detail-cover {
  display: block;
  width: min(100%, 390px);
  margin: 0 auto;
  border: 1px solid rgba(255,255,255,.16);
  box-shadow: 0 28px 70px rgba(0,0,0,.55);
}

.book-detail-title {
  margin: 14px 0 22px;
  font-size: clamp(3rem, 7vw, 6rem);
  letter-spacing: .16em;
}

.book-detail-intro {
  max-width: 36rem;
  color: var(--muted);
  line-height: 2;
}

.book-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 30rem;
  margin: 36px 0 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.book-facts div {
  padding: 18px 0;
}

.book-facts div + div {
  padding-left: 24px;
  border-left: 1px solid var(--line);
}

.book-facts dt {
  margin-bottom: 6px;
  color: var(--gold);
  font-size: .75rem;
  letter-spacing: .18em;
}

.book-facts dd {
  margin: 0;
  font-size: 1.1rem;
}

.book-toc {
  margin: 0;
  padding: 0;
  list-style: none;
  columns: 2;
  column-gap: 72px;
}

.book-toc li {
  break-inside: avoid;
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.book-toc-title {
  flex: 0 1 auto;
  line-height: 1.8;
}

.book-toc-rule {
  flex: 1;
  min-width: 24px;
  border-bottom: 1px dotted rgba(255,255,255,.2);
}

.book-toc-page {
  flex: 0 0 auto;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.book-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 48px;
}

.book-detail-actions a {
  min-width: 190px;
  padding: 13px 24px;
  border: 1px solid rgba(255,255,255,.55);
  color: var(--text);
  text-align: center;
  text-decoration: none;
  transition: border-color .3s ease, color .3s ease, background .3s ease;
}

.book-detail-actions a:hover,
.book-detail-actions a:focus-visible {
  border-color: var(--gold);
  background: rgba(184,155,94,.08);
  color: var(--gold);
}

.book-detail-actions .amazon-purchase-link {
  border-color: rgba(184,155,94,.75);
  background: rgba(184,155,94,.1);
  color: var(--gold);
}

.book-detail-actions .amazon-purchase-link:hover,
.book-detail-actions .amazon-purchase-link:focus-visible {
  background: var(--gold);
  color: #080808;
}

.essay-book-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.essay-book-item {
  min-height: 190px;
  padding: 30px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.035);
}

.essay-book-year {
  margin-bottom: 24px;
  color: var(--gold);
  font-size: .78rem;
  letter-spacing: .18em;
}

.essay-book-item h3 {
  margin: 0;
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  line-height: 1.7;
  letter-spacing: .08em;
}

@media (max-width: 767px) {
  .book-detail-main {
    padding-top: 62px;
  }

  .book-detail-hero {
    padding: 72px 0 64px;
  }

  .book-detail-copy {
    margin-top: 50px;
  }

  .book-toc {
    columns: 1;
  }

  .book-facts {
    grid-template-columns: 1fr;
  }

  .book-facts div + div {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .book-detail-actions a {
    width: 100%;
  }

  .essay-book-list {
    grid-template-columns: 1fr;
  }
}