.amazon-shelf {
  max-width: 1180px;
  margin: 0 auto 36px;
  padding: clamp(32px, 5vw, 58px);
  border: 1px solid rgba(36, 50, 56, .1);
  border-radius: 32px;
  background: var(--white);
  box-shadow: 0 18px 60px rgba(36, 50, 56, .08);
}

.amazon-shelf-head {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr);
  align-items: end;
  gap: 36px;
  margin-bottom: 34px;
}

.amazon-shelf-head h3 {
  max-width: 720px;
  margin: 12px 0 0;
  color: var(--teal);
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.04;
  letter-spacing: -.04em;
}

.amazon-shelf-head p {
  margin: 0;
  font-size: 17px;
  line-height: 1.6;
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.book-tile {
  min-height: 0;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 20px;
  overflow: hidden;
  border-radius: 20px;
  background: var(--cream);
  border-top: 5px solid var(--gold);
}

.book-cover {
  aspect-ratio: 1 / 1;
  margin: -24px -24px 0;
  display: block;
  overflow: hidden;
  background: var(--teal);
}

.book-cover img {
  width: 200%;
  height: 100%;
  max-width: none;
  display: block;
  transform: translateX(-50%);
}

.book-cover:focus-visible {
  outline: 4px solid var(--gold);
  outline-offset: -4px;
}

.book-copy {
  min-height: 190px;
  display: flex;
  flex: 1;
  flex-direction: column;
}

.book-number {
  display: block;
  margin-bottom: 14px;
  color: var(--coral);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
}

.book-tile h4 {
  margin: 0;
  font-family: 'Fraunces', Georgia, serif;
  font-size: 24px;
  line-height: 1.15;
  letter-spacing: -.025em;
}

.book-buy {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 20px;
}

.book-buy > span {
  color: var(--teal);
  font-size: 14px;
  font-weight: 700;
}

.book-buy a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--coral);
  color: white;
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}

.book-buy a:hover,
.book-buy a:focus-visible {
  background: var(--teal);
}

@media (max-width: 980px) {
  .book-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .amazon-shelf-head {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .book-tile {
    min-height: 0;
  }

  .book-copy {
    min-height: 160px;
  }
}