/* A two-sided page turns around the binding; words connect reading to learning. */
.books-catalog-page .books-hero__art{direction:ltr}
.books-catalog-page .books-art__stage{perspective:1100px}
.books-catalog-page .books-art__spread{transform-style:preserve-3d;filter:none;box-shadow:0 23px 30px -21px #000b;direction:ltr}
.books-catalog-page .books-art__sheet{padding:20px 17px;box-shadow:inset 0 -5px 0 #d7e5e7,0 5px 0 -1px #a5bdc6;backface-visibility:hidden}
.books-catalog-page .books-art__sheet--left{background:linear-gradient(90deg,#f8fcf9 80%,#d6e5e6);border-right:1px solid #b7ced6;transform:none;border-radius:13px 3px 3px 13px}
.books-catalog-page .books-art__sheet--right{background:linear-gradient(90deg,#d6e5e6,#f4faf8 14%);transform:none;border-radius:3px 13px 13px 3px}
.books-catalog-page .books-art__tiny{display:block;direction:ltr;text-align:left;font-size:8px;letter-spacing:1.3px;line-height:1.6}
.books-catalog-page .books-art__title{font-size:25px;line-height:1.1;text-align:left;margin-top:11px}
.books-catalog-page .books-art__illustration{display:grid;place-items:center;width:62px;height:45px;margin-top:12px;border-radius:13px;color:#204e45;font:700 25px Georgia,serif;box-shadow:none;background:linear-gradient(135deg,#c6e349,#a8ded9)}
.books-catalog-page .books-art__page-note{display:block;font:9px/1.45 Georgia,serif;color:#547182;text-align:left;margin-top:12px;max-width:105px}
.books-catalog-page .books-art__page-number{position:absolute;bottom:10px;left:17px;color:#6e97a5;font:8px/1 Arial,sans-serif}
.books-catalog-page .books-art__word{position:relative;display:flex;justify-content:space-between;align-items:center;gap:6px;isolation:isolate;border-bottom:1px solid #cfdee1;padding:14px 0 10px;text-align:left;line-height:1.3}
.books-catalog-page .books-art__word b{font:700 15px Georgia,serif;color:#123f61}
.books-catalog-page .books-art__word>span{font-size:10px;white-space:nowrap;color:#5f7a86}
.books-catalog-page .books-art__word::before{content:"";position:absolute;inset:8px -4px 5px;z-index:-1;background:#ddeb9b;border-radius:5px;transform-origin:left;animation:bkWordRead 10s ease-in-out infinite;opacity:0}
.books-catalog-page .books-art__word:nth-of-type(3)::before{animation-delay:.7s}
.books-catalog-page .books-art__word:nth-of-type(4)::before{animation-delay:1.4s}
.books-catalog-page .books-art__turn{padding:0;transform-style:preserve-3d;backface-visibility:visible;border-radius:3px 13px 13px 3px;background:none;box-shadow:none;animation:bkLearningPageTurn 10s cubic-bezier(.45,.05,.25,1) infinite;will-change:transform}
.books-catalog-page .books-art__turn-face{position:absolute;inset:0;overflow:hidden;padding:22px 18px;border:1px solid #d7e6e6;background:linear-gradient(90deg,#d6e5e6,#fbfcf5 13%);border-radius:3px 13px 13px 3px;backface-visibility:hidden;-webkit-backface-visibility:hidden;box-shadow:5px 4px 12px #0002}
.books-catalog-page .books-art__turn-face--back{transform:rotateY(180deg);border-radius:13px 3px 3px 13px;background:linear-gradient(90deg,#f5faf6 84%,#d7e6e6)}
.books-catalog-page .books-art__turn-face strong{display:block;margin-top:21px;font:700 26px/1.15 Georgia,serif;color:#173f5c;text-align:left}
.books-catalog-page .books-art__back-letter{display:block;color:#446e76;font:700 43px/1.3 Georgia,serif;margin-top:15px;text-align:center}
.books-catalog-page .books-art__reading-line{display:block;width:42px;height:5px;margin-top:15px;border-radius:5px;background:#b7d60b}
.books-catalog-page .books-art__turn-face .books-art__turn-line{height:3px;margin:12px 0;background:#bdd2d7}
.books-catalog-page .books-art__spine{top:42px;bottom:42px;left:50%;transform:translateX(-50%) rotate(-7deg);background:linear-gradient(90deg,#7f9aaa,#ecf5f3,#6a91a6);width:4px;filter:none;opacity:.7;pointer-events:none}
.books-catalog-page .books-art__caption{letter-spacing:2.6px}
@keyframes bkLearningPageTurn{0%,23%,100%{transform:translateZ(3px) rotateY(0deg)}43%,70%{transform:translateZ(3px) rotateY(-178deg)}90%{transform:translateZ(3px) rotateY(0deg)}}
@keyframes bkWordRead{0%,38%,83%,100%{opacity:0;transform:scaleX(.1)}48%,70%{opacity:.75;transform:scaleX(1)}}
@media(prefers-reduced-motion:reduce){.books-catalog-page .books-art__stage,.books-catalog-page .books-art__turn,.books-catalog-page .books-art__word::before{animation:none!important}.books-catalog-page .books-art__turn{display:none}.books-catalog-page .books-art__word::before{opacity:.3;transform:none}}