.books { max-width: 1120px; margin: auto; padding: 50px 24px 80px; }
.book-hero { margin-bottom: 40px; max-width: 680px; }
.book-hero h1 { font-size: clamp(2rem, 6vw, 4rem); margin-bottom: 16px; }
.book-hero p, .book-reason p { font-size: 16px; }
.book-filter { display: flex; gap: 12px; flex-wrap: wrap; align-items: end; border-block: 1px solid var(--surface); padding: 16px 0; }
.book-filter label { display: grid; gap: 4px; }
.book-filter select { background: var(--surface); color: var(--text); padding: 8px 10px; border-radius: 6px; font: inherit; }
.book-count { margin: 22px 0; }
.book-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 30px 20px; }
.book-cover { display: grid; place-items: center; aspect-ratio: 4 / 5; background: #f7f5f0; color: #29262f; border-radius: 12px; padding: 12%; text-align: center; }
.book-cover img { width: 100%; height: 100%; max-height: 100%; object-fit: contain; }
.book-card .tags { margin-top: 12px; }
.book-card h2 { margin: 4px 0; }
.book-wall, .book-purchase { padding: 24px; border: 1px solid var(--surface); border-radius: 14px; }
.book-wall { text-align: center; }
.book-wall .tags { justify-content: center; }
.books .cta { display: inline-block; margin: 12px 0; }
.books-back { display: inline-block; margin-bottom: 26px; color: var(--muted); }
.book-detail { display: grid; grid-template-columns: minmax(170px, 320px) minmax(0, 1fr); gap: 48px; }
.book-detail h1 { margin: 14px 0; overflow-wrap: anywhere; }
.book-purchase, .book-reason { margin-top: 28px; }
.book-reason p { white-space: pre-line; margin: 12px 0; line-height: 1.75; color: var(--text); }
.book-related { margin-top: 48px; border-top: 1px solid var(--surface); padding-top: 24px; }
.book-related .book-grid { margin-top: 18px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 680px) {
  .books { padding: 30px 16px 60px; }
  .book-grid, .book-related .book-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .book-detail { grid-template-columns: 1fr; gap: 24px; }
  .book-detail > .book-cover { width: min(100%, 240px); margin-inline: auto; }
}