.book-detail-page {
  max-width: 58rem;
  margin: 0 auto;
}

.book-detail-kicker {
  margin: 0 0 0.55rem;
  color: var(--primary);
  font-family: var(--font-secondary), sans-serif;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.book-detail-kicker a {
  text-decoration: none;
}

.book-detail-main {
  display: grid;
  grid-template-columns: minmax(10rem, 14rem) minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
  padding-top: 0.6rem;
}

.book-detail-cover {
  display: block;
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  border: 1px solid var(--tertiary);
}

.book-detail-copy h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1;
  letter-spacing: -0.035em;
}

.book-detail-author {
  margin: 0.65rem 0 0;
  font-size: 1.15rem;
  opacity: 0.78;
}

.book-detail-description {
  margin-top: 1.5rem;
  line-height: 1.65;
}

.book-detail-description p:first-child {
  margin-top: 0;
}

.book-detail-meta,
.book-detail-isbn {
  margin: 0.5rem 0 0;
  opacity: 0.68;
  font-size: 0.9rem;
}

.book-detail-writing {
  margin-top: 3rem;
  padding-top: 2.2rem;
  border-top: 2px solid var(--tertiary);
}

.book-detail-writing h2 {
  margin: 0;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
}

@media (max-width: 640px) {
  .book-detail-main {
    grid-template-columns: 1fr;
  }

  .book-detail-cover-wrap {
    max-width: 12rem;
  }
}