.catalog-book { --book-red:#9b2024; color:#222321; background:#f3f2ee; overflow:hidden; }
.catalog-book, .catalog-book * { box-sizing:border-box; }
.material-catalog-book { margin-block:32px; scroll-margin-top:120px; order:8; }
.material-catalog-book[hidden] { display:none; }
.catalog-book-inner { max-width:1440px; margin:auto; display:grid; grid-template-columns:minmax(0,.91fr) minmax(0,1.65fr); align-items:center; gap:8px; padding:45px 48px 40px 64px; }
.catalog-book-copy { position:relative; z-index:2; padding:25px 0; }
.catalog-book-kicker { margin:0 0 20px; font-size:15px; font-weight:650; letter-spacing:.035em; color:var(--book-red); }
.catalog-book h2 { margin:0; font-size:clamp(30px,3.1vw,46px); line-height:1.3; letter-spacing:-.035em; font-weight:650; }
.catalog-book h2 span { display:block; }
.catalog-book-description { margin:24px 0 28px; font-size:16px; line-height:1.85; color:#666760; }
.catalog-book-actions { display:flex; flex-wrap:wrap; align-items:center; gap:20px 24px; }
.catalog-book-primary { display:inline-flex; align-items:center; justify-content:center; gap:24px; min-height:52px; padding:14px 22px; border:1px solid var(--book-red); border-radius:2px; background:var(--book-red); color:white; font:inherit; font-size:14px; font-weight:600; text-decoration:none; cursor:pointer; transition:background .2s; }
.catalog-book-primary:hover { background:#852228; }
.catalog-book-primary > span { font-size:20px; line-height:1; }
.catalog-book-download { display:inline-flex; align-items:center; gap:8px; min-height:44px; border:0; padding:0; background:transparent; color:#33342f; font:inherit; font-size:13px; font-weight:600; text-decoration:underline; text-underline-offset:5px; cursor:pointer; }
.catalog-book-download svg { width:15px; height:15px; fill:none; stroke:currentColor; stroke-width:1.6; }
.catalog-book-meta { display:flex; flex-wrap:wrap; gap:10px; margin:23px 0 0; font-size:10px; letter-spacing:.04em; color:#777871; }
.catalog-book-meta span { color:#a8a8a1; }
.catalog-book-visual { min-width:0; margin:0; }
.catalog-book-stage { display:block; position:relative; width:100%; aspect-ratio:1.67; border:0; padding:0; background:none; perspective:1400px; cursor:zoom-in; }
.catalog-book-paper { position:absolute; display:block; width:62%; aspect-ratio:var(--catalog-spread-ratio,1600 / 1132); background:#fff; border:1px solid #e1e0da; box-shadow:0 2px 0 #f8f7f3,0 4px 0 #d8d7d0,0 6px 0 #f8f7f3,0 7px 0 #cfcec7,2px 20px 22px -13px #3d3a3266,5px 34px 36px -20px #3d3a324d; transition:transform .4s ease; }
.catalog-book-paper--back { top:6%; left:4%; transform:rotate(-10deg) rotateY(8deg) rotateX(7deg); }
.catalog-book-paper--front { top:18%; right:2%; transform:rotate(5deg) rotateY(-9deg) rotateX(6deg); }
.catalog-book-page { position:relative; display:block; width:100%; aspect-ratio:var(--catalog-spread-ratio,1600 / 1132); overflow:hidden; }
.catalog-book-page > img { display:block; width:100%; height:100%; object-fit:contain; }
.catalog-book-page::after { content:""; position:absolute; inset:0; pointer-events:none; background:linear-gradient(90deg,#a8a2920d 0%,transparent 12%,#fff4 43%,#39332425 49.7%,#2923183d 50%,#fff7 50.6%,#fff2 55%,transparent 85%,#d5d1c31a 100%); box-shadow:inset 0 0 1px #938b7544; }
.catalog-book-visual figcaption { margin:8px 3% 0 0; text-align:right; font-size:10px; letter-spacing:.18em; color:#8a8a82; }
.catalog-book :is(a,button):focus-visible { outline:2px solid var(--book-red); outline-offset:5px; }
@media (hover:hover) and (prefers-reduced-motion:no-preference) { .catalog-book-stage:hover .catalog-book-paper--front { transform:translateY(-5px) rotate(3deg) rotateY(-7deg) rotateX(4deg); } }
@media (max-width:1000px) { .catalog-book-inner { padding:40px 30px; grid-template-columns:minmax(0,1fr) minmax(0,1.3fr); } .catalog-book h2 { font-size:32px; } .catalog-book-actions { gap:12px 18px; } .catalog-book-primary { gap:16px; padding-inline:16px; } .catalog-book-description { font-size:14px; } }
@media (max-width:720px) {
  .catalog-book-inner { display:flex; flex-direction:column; gap:14px; padding:38px 22px 28px; }
  .catalog-book-copy { width:100%; padding:0; }
  .catalog-book-kicker { font-size:12px; margin-bottom:16px; }
  .catalog-book h2 { font-size:33px; line-height:1.35; }
  .catalog-book-description { margin:18px 0 23px; font-size:14px; }
  .catalog-book-actions { gap:16px; }
  .catalog-book-primary { min-height:49px; font-size:13px; }
  .catalog-book-download { font-size:12px; }
  .catalog-book-meta { margin-top:18px; font-size:9px; }
  .catalog-book-visual { width:100%; }
  .catalog-book-stage { aspect-ratio:1.52; }
  .catalog-book-paper { width:64%; }
  .catalog-book-paper--back { top:9%; left:2%; }
  .catalog-book-paper--front { top:21%; right:2%; }
  .catalog-book-visual figcaption { margin-top:10px; font-size:9px; }
}
@media (max-width:360px) { .catalog-book h2 { font-size:29px; } .catalog-book-inner { padding-inline:18px; } .catalog-book-actions { gap:10px; } .catalog-book-primary { padding-inline:12px; gap:10px; } }
@media (prefers-reduced-motion:reduce) { .catalog-book * { transition:none; } }