/* Compact, accessible cover cards with an anchored information footer. */
.commerce-page .catalog-flip-card{display:block!important;position:relative;perspective:1200px;overflow:visible!important;border:0!important;background:transparent!important;box-shadow:none!important;min-width:0}
.commerce-page .catalog-flip-card[hidden]{display:none!important}
.catalog-flip-rotor{position:relative;width:100%;height:360px;transform-style:preserve-3d;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.is-flipped .catalog-flip-rotor{transform:rotateY(180deg)}
.catalog-flip-front,.catalog-flip-back{position:absolute;inset:0;border:1px solid var(--shop-line,#e7e0da);border-radius:12px;backface-visibility:hidden;-webkit-backface-visibility:hidden;overflow:hidden;box-shadow:0 4px 14px #2018100d;background:var(--shop-surface,#fff);box-sizing:border-box}
.catalog-flip-back{transform:rotateY(180deg);display:flex;flex-direction:column;padding:14px;cursor:pointer}
.commerce-page .catalog-flip-front :is(.pf-product-card-media,.library-book-cover){position:absolute!important;inset:0!important;height:100%!important;width:100%!important;border:0!important;aspect-ratio:auto!important}
.commerce-page .catalog-flip-front :is(.pf-product-card-media,.library-book-cover) img{position:absolute!important;inset:0!important;width:100%!important;height:100%!important;object-fit:cover!important;padding:0!important;transform:none!important}
.catalog-flip-trigger{position:absolute;inset:0;display:flex;align-items:flex-end;justify-content:center;padding:0 10px 15px;border:0;color:#fff;font-size:.76rem;font-weight:700;gap:7px;background:linear-gradient(transparent 75%,#171310d9);border-radius:12px}
.catalog-flip-close{align-self:flex-start;flex-shrink:0;display:flex;align-items:center;gap:6px;padding:5px 0;margin-bottom:10px;border:0;background:transparent;color:var(--shop-muted);font-size:.68rem;min-height:30px}
.commerce-page .catalog-flip-back .catalog-flip-content{display:block!important;flex:1!important;min-height:0!important;width:100%!important;padding:0!important;overflow-y:auto;overflow-x:hidden;scrollbar-width:thin}
.catalog-flip-back *{min-width:0;box-sizing:border-box;overflow-wrap:anywhere}
.commerce-page .catalog-flip-back :is(.pf-product-category,.library-book-category){display:block;font-size:.58rem;line-height:1.4;letter-spacing:.02em;margin:0 0 8px}
.commerce-page .catalog-flip-back h3{font-size:.92rem!important;line-height:1.4;font-weight:750;margin:0 0 10px!important}
.commerce-page .catalog-flip-back :is(.commerce-product-summary,.library-book-authors){font-size:.7rem;line-height:1.5;margin:0 0 10px;min-height:0}
.catalog-book-facts{display:grid;gap:5px;margin:10px 0;padding:8px 0;border-top:1px solid var(--shop-line);font-size:.65rem}
.catalog-book-facts>div{display:flex;justify-content:space-between;gap:8px}
.catalog-book-facts dt{color:var(--shop-muted);font-weight:400}
.catalog-book-facts dd{margin:0;font-weight:650;text-align:right;color:var(--shop-ink)}
.catalog-flip-footer{flex-shrink:0;padding-top:10px;border-top:1px solid var(--shop-line);margin-top:10px;background:var(--shop-surface)}
.commerce-page .catalog-flip-footer :is(.pf-product-price-row,.library-book-access){display:block!important;margin:0 0 9px!important;padding:0!important;border:0!important;width:100%}
.commerce-page .catalog-flip-footer :is(.pf-price,.library-book-access strong){font-size:1.2rem!important;line-height:1.2}
.commerce-page .catalog-flip-footer :is(.pf-digital-note,.pf-ebook-note,.library-book-access>span){display:block!important;font-size:.6rem;white-space:normal;margin:4px 0 0!important;padding:0!important;border:0!important}
.commerce-page .catalog-flip-footer :is(.pf-product-actions,.library-book-actions){display:grid!important;grid-template-columns:1fr!important;gap:6px;margin:0!important;width:100%}
.commerce-page .catalog-flip-footer .pf-btn{width:100%!important;min-height:35px!important;font-size:.68rem!important;padding:7px!important;white-space:normal}
.catalog-subject-filters{display:flex;align-items:center;flex-wrap:wrap;gap:7px;margin:12px 0 18px}
.catalog-subject-label{font-size:.72rem;color:var(--shop-muted);margin-right:4px}
.catalog-subject-filters button{display:flex;align-items:center;gap:7px;padding:8px 10px;border:1px solid var(--shop-line);border-radius:8px;background:var(--shop-surface);color:var(--shop-ink);font-size:.68rem;line-height:1.4;min-height:36px;text-align:left}
.catalog-subject-filters button i{color:var(--shop-accent)}
.catalog-subject-filters button small{background:var(--shop-soft);padding:1px 5px;border-radius:4px}
.catalog-subject-filters button[aria-pressed=true]{background:var(--shop-active);border-color:var(--shop-accent);color:var(--shop-accent)}
.commerce-page :is(.pf-store-grid-v6,.library-catalog-grid:not(.library-list-view)){gap:14px!important}
@media(min-width:1200px){.commerce-page :is(.pf-store-grid-v6,.library-catalog-grid:not(.library-list-view)){grid-template-columns:repeat(5,minmax(0,1fr))!important}}
.catalog-flip-trigger:focus-visible,.catalog-flip-close:focus-visible,.catalog-subject-filters button:focus-visible{outline:3px solid var(--shop-accent);outline-offset:3px}
@media(hover:hover) and (prefers-reduced-motion:no-preference){.catalog-flip-card{transition:translate .2s}.catalog-flip-card:hover{translate:0 -3px}.catalog-flip-card:hover .catalog-flip-front{box-shadow:0 10px 22px #20181020}}
@media(prefers-reduced-motion:reduce){.catalog-flip-rotor{transition:none}}
@media(max-width:600px){.catalog-flip-rotor{height:390px}.catalog-subject-filters{flex-wrap:nowrap;overflow:auto;padding-bottom:6px}.catalog-subject-filters button{flex-shrink:0;max-width:230px}}
/* Final sizing rules: override inherited catalog dimensions on both faces. */
#main-content.commerce-page .catalog-flip-card{align-self:start;min-height:0!important;height:auto!important}
#main-content.commerce-page .catalog-flip-rotor{height:365px!important;min-height:0!important;aspect-ratio:auto!important}
#main-content.commerce-page .catalog-flip-back{padding:14px 16px;border-color:var(--shop-line);gap:0}
#main-content.commerce-page .catalog-flip-close{font-size:.68rem;line-height:1.2;min-height:24px;padding:3px 0;margin-bottom:10px}
#main-content.commerce-page .catalog-flip-content{scrollbar-width:thin;overscroll-behavior:contain}
#main-content.commerce-page .catalog-flip-content h3{font-size:1rem!important;line-height:1.35!important;margin-bottom:8px!important}
#main-content.commerce-page .catalog-flip-content .library-book-authors{font-size:.72rem;line-height:1.4;margin-bottom:8px}
#main-content.commerce-page .catalog-flip-content :is(.pf-product-category,.library-book-category){font-size:.6rem;line-height:1.4;margin-bottom:7px;color:var(--shop-accent)}
#main-content.commerce-page .catalog-book-facts{margin:8px 0 0;padding:9px 0 0;gap:7px;font-size:.7rem}
#main-content.commerce-page .catalog-flip-footer{padding-top:10px;margin-top:10px}
#main-content.commerce-page .catalog-flip-footer :is(.pf-product-actions,.library-book-actions){grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:6px}
#main-content.commerce-page .catalog-flip-footer .pf-btn{font-size:.67rem!important;min-height:38px!important;padding:8px 5px!important;border-radius:7px}
#main-content.commerce-page .catalog-flip-footer :is(.pf-product-price-row,.library-book-access){margin-bottom:10px!important}
#main-content.commerce-page .catalog-flip-front .pf-ebook-badge{font-size:.58rem;padding:5px 7px;top:10px;left:10px;box-shadow:0 2px 6px #00000010}
#main-content.commerce-page .catalog-flip-trigger{font-size:.72rem;padding-bottom:13px;background:linear-gradient(transparent 82%,#171310d9)}
@media(min-width:1200px){#main-content.commerce-page :is(.pf-store-grid-v6,.library-catalog-grid:not(.library-list-view)){grid-template-columns:repeat(5,minmax(0,1fr))!important;gap:16px!important}}
@media(max-width:600px){#main-content.commerce-page .catalog-flip-rotor{height:380px!important}}
@media(min-width:601px) and (max-width:800px){#main-content.commerce-page .catalog-flip-rotor{height:370px!important}}/* Discovery workspace */
.catalog-discovery{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:20px 24px;margin:16px 0 20px;border:1px solid var(--shop-line,#e7e0da);border-radius:14px;background:linear-gradient(120deg,var(--shop-surface,#fff),var(--shop-soft,#f7f3ef))}
.catalog-discovery-kicker{font-size:.6rem;letter-spacing:.14em;color:var(--shop-accent,#c92535);font-weight:750}
.catalog-discovery h2{font-size:1.35rem;margin:5px 0!important;line-height:1.3}.catalog-discovery p{font-size:.75rem;margin:0;color:var(--shop-muted,#776f69)}
.catalog-discovery-actions{display:flex;flex-wrap:wrap;gap:8px;max-width:340px}.catalog-discovery-actions button,.catalog-compare-pick{border:1px solid var(--shop-line,#ddd);background:var(--shop-surface,#fff);color:var(--shop-ink,#211e1c);border-radius:8px;padding:9px 12px;font-size:.72rem;font-weight:650;cursor:pointer}.catalog-discovery-actions button:disabled{opacity:.45;cursor:default}.catalog-discovery-status{font-size:.65rem;flex-basis:100%;color:var(--shop-accent,#c92535)}
.catalog-save{position:absolute;top:10px;right:10px;z-index:4;border:0;border-radius:50%;width:33px;height:33px;background:#fffffff2;color:#c92535;font-size:1.3rem;box-shadow:0 2px 8px #0002;cursor:pointer}.catalog-save[aria-pressed=true]{background:#c92535;color:white}
.catalog-compare-pick{position:absolute;right:14px;top:13px;font-size:.6rem;padding:5px 7px}.catalog-compare-pick[aria-pressed=true]{background:#fff0f1;color:#c92535;border-color:#c92535}
#main-content.commerce-page .catalog-flip-close{max-width:55%;font-size:.62rem}
#main-content.commerce-page .catalog-flip-content h3{font-size:.87rem!important;line-height:1.3!important}
#main-content.commerce-page .catalog-book-facts{font-size:.65rem;gap:5px;padding-top:7px}
#main-content.commerce-page .catalog-flip-footer .pf-btn{font-size:.62rem!important;white-space:nowrap;padding:8px 4px!important}
.catalog-discovery-dialog{width:min(940px,94vw);max-height:85vh;box-sizing:border-box;border:1px solid #e7e0da;border-radius:18px;padding:24px;background:var(--shop-surface,#fff);color:var(--shop-ink,#211e1c);box-shadow:0 24px 80px #0004}.catalog-discovery-dialog::backdrop{background:#161312a6;backdrop-filter:blur(5px)}.catalog-discovery-dialog header{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px}.catalog-discovery-dialog h2{font-size:1.35rem;margin:0}.catalog-discovery-dialog header button,.catalog-shelf-remove{border:0;background:transparent;color:var(--shop-muted,#776f69);cursor:pointer;padding:8px;font-size:.75rem}
.catalog-discovery-body{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}.catalog-comparison-item{padding:18px;border:1px solid var(--shop-line,#e7e0da);border-radius:12px;display:flex;flex-direction:column;gap:10px}.catalog-comparison-item img{height:150px;width:100%;object-fit:contain;background:var(--shop-soft,#f7f3ef);border-radius:6px}.catalog-comparison-item small{color:#c92535;font-size:.65rem}.catalog-comparison-item h3{font-size:.95rem;line-height:1.4;margin:0}.catalog-comparison-item p{font-size:.75rem;margin:0}.catalog-comparison-item dl{font-size:.73rem;margin:0}.catalog-comparison-item dl>div{display:flex;justify-content:space-between;gap:10px;padding:7px 0;border-bottom:1px solid var(--shop-line,#eee)}.catalog-comparison-item dd{margin:0;font-weight:650}.catalog-comparison-item strong{margin-top:auto;font-size:1.15rem}.catalog-comparison-item .pf-btn{font-size:.75rem}.catalog-discovery-empty{font-size:.85rem;padding:24px;color:var(--shop-muted,#776f69)}
@media(max-width:700px){.catalog-discovery{align-items:flex-start;flex-direction:column;padding:16px}.catalog-discovery-dialog{padding:16px}.catalog-discovery-body{grid-template-columns:1fr}.catalog-comparison-item img{height:120px}}
.catalog-discovery-dialog{padding:0;overflow:hidden;max-height:calc(100dvh - 40px)}
.catalog-discovery-dialog[open]{display:flex;flex-direction:column}
.catalog-discovery-dialog header{flex-shrink:0;padding:22px 24px;margin:0;border-bottom:1px solid var(--shop-line,#e7e0da)}
.catalog-dialog-subtitle{margin:6px 0 0;font-size:.85rem;color:var(--shop-muted,#776f69)}
.catalog-discovery-dialog header .catalog-dialog-close{width:42px;height:42px;flex-shrink:0;border:1px solid var(--shop-line,#e7e0da);border-radius:50%;font-size:1.5rem;padding:0}
.catalog-discovery-body{padding:20px 24px;overflow:auto;overscroll-behavior:contain;min-height:0}
.catalog-item-details{display:flex;flex-direction:column;gap:8px;min-width:0}
.catalog-item-actions{display:flex;flex-direction:column;gap:10px;margin-top:auto}
.catalog-item-actions .catalog-shelf-remove{border:1px solid var(--shop-line,#e7e0da);border-radius:8px;font-size:.8rem;min-height:36px}
.catalog-shelf-dialog .catalog-discovery-body{grid-template-columns:1fr;gap:12px}
.catalog-shelf-dialog .catalog-comparison-item{display:grid;grid-template-columns:96px minmax(0,1fr) 150px;align-items:center;padding:16px;gap:20px}
.catalog-shelf-dialog .catalog-comparison-item img{height:130px}
.catalog-shelf-dialog .catalog-comparison-item h3{font-size:1rem}
.catalog-shelf-dialog .catalog-comparison-item small{font-size:.75rem}
.catalog-shelf-dialog .catalog-comparison-item dl{display:flex;flex-wrap:wrap;gap:4px 16px}
.catalog-shelf-dialog .catalog-comparison-item dl>div{border:0;gap:5px;padding:0}
.catalog-shelf-dialog .catalog-item-actions{margin:0}
.catalog-shelf-remove:hover,.catalog-dialog-close:hover{background:var(--shop-soft,#f7f3ef);color:var(--shop-accent,#c92535)}
.catalog-discovery-dialog :is(button,a):focus-visible{outline:3px solid var(--shop-accent,#c92535);outline-offset:3px}
body.theme-dark .catalog-discovery-dialog{--shop-surface:#211e1c;--shop-soft:#292420;--shop-line:#43382f;--shop-ink:#f0ece8;--shop-muted:#b9ada3;border-color:var(--shop-line)}
body.high-contrast .catalog-discovery-dialog{--shop-surface:#000;--shop-soft:#000;--shop-line:#fff;--shop-ink:#fff;--shop-muted:#fff;--shop-accent:#ffeb3b;border-color:#fff}
@media(max-width:600px){
 .catalog-discovery-dialog{width:calc(100vw - 20px);max-width:calc(100vw - 20px);max-height:calc(100dvh - 20px)}
 .catalog-discovery-dialog header{padding:16px}
 .catalog-discovery-body{padding:12px}
 .catalog-shelf-dialog .catalog-comparison-item{grid-template-columns:70px minmax(0,1fr);gap:12px;padding:12px}
 .catalog-shelf-dialog .catalog-comparison-item img{height:104px}
 .catalog-shelf-dialog .catalog-item-actions{grid-column:1/-1;display:grid;grid-template-columns:1fr auto;align-items:center}
 .catalog-shelf-dialog .catalog-shelf-remove{grid-column:2}
}
/* Full covers framed by a discreet segmented border; uniform concise backs. */
#main-content.commerce-page .catalog-flip-front{background:var(--shop-soft,#f7f3ef);border:1px dashed #c8beb5;box-shadow:0 3px 12px #2018100c}
#main-content.commerce-page .catalog-flip-front :is(.pf-product-card-media,.library-book-cover){inset:8px 8px 35px!important;width:calc(100% - 16px)!important;height:calc(100% - 43px)!important;background:transparent!important;border-radius:6px!important;overflow:hidden}
#main-content.commerce-page .catalog-flip-front :is(.pf-product-card-media,.library-book-cover) img{object-fit:contain!important;object-position:center!important;background:transparent!important}
#main-content.commerce-page .catalog-flip-trigger{background:transparent;color:var(--shop-ink,#211e1c);padding-bottom:10px;font-size:.65rem}
#main-content.commerce-page .catalog-flip-front .pf-ebook-badge{display:none!important}
#main-content.commerce-page .catalog-flip-back{padding:14px 16px}
#main-content.commerce-page .catalog-flip-content{overflow:hidden!important;display:flex!important;flex-direction:column!important;padding-top:6px!important}
#main-content.commerce-page .catalog-flip-content :is(.commerce-product-summary,.library-book-authors,.pf-course-progress){display:none!important}
#main-content.commerce-page .catalog-flip-content :is(.pf-product-category,.library-book-category){display:-webkit-box!important;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;min-height:28px;margin-bottom:12px;font-size:.62rem;line-height:1.4}
#main-content.commerce-page .catalog-flip-content h3{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;font-size:.94rem!important;line-height:1.4!important;margin:0!important;min-height:63px}
#main-content.commerce-page .catalog-book-facts{margin-top:14px;padding-top:12px;font-size:.7rem}
#main-content.commerce-page .catalog-book-facts>div:not(:first-child){display:none}
#main-content.commerce-page .catalog-flip-footer :is(.pf-digital-note,.pf-ebook-note,.library-book-access>span){display:none!important}
#main-content.commerce-page .catalog-flip-footer{padding-top:12px;margin-top:12px}
#main-content.commerce-page .catalog-flip-footer :is(.pf-product-price-row,.library-book-access){margin-bottom:12px!important}
@media(hover:hover){#main-content.commerce-page .catalog-flip-card:hover .catalog-flip-front{border-color:var(--shop-accent,#c92535)}}
/* Balanced book frame with segmented corners and a compact information face. */
#main-content.commerce-page .catalog-flip-rotor{height:320px!important}
#main-content.commerce-page .catalog-flip-front{border:1px solid var(--shop-line,#e7e0da);background:var(--shop-surface,#fff);border-radius:12px}
#main-content.commerce-page .catalog-flip-front::after{content:'';position:absolute;inset:5px;pointer-events:none;border-radius:8px;background:linear-gradient(#c8beb5,#c8beb5) left top/16px 1px no-repeat,linear-gradient(#c8beb5,#c8beb5) left top/1px 16px no-repeat,linear-gradient(#c8beb5,#c8beb5) right top/16px 1px no-repeat,linear-gradient(#c8beb5,#c8beb5) right top/1px 16px no-repeat,linear-gradient(#c8beb5,#c8beb5) left bottom/16px 1px no-repeat,linear-gradient(#c8beb5,#c8beb5) left bottom/1px 16px no-repeat,linear-gradient(#c8beb5,#c8beb5) right bottom/16px 1px no-repeat,linear-gradient(#c8beb5,#c8beb5) right bottom/1px 16px no-repeat}
#main-content.commerce-page .catalog-flip-front :is(.pf-product-card-media,.library-book-cover){inset:10px 10px 34px!important;width:calc(100% - 20px)!important;height:calc(100% - 44px)!important}
#main-content.commerce-page .catalog-flip-back{background:linear-gradient(145deg,var(--shop-surface,#fff),var(--shop-soft,#f7f3ef));padding:13px 15px}
#main-content.commerce-page .catalog-flip-content{flex:1!important;justify-content:flex-start;gap:0}
#main-content.commerce-page .catalog-flip-content :is(.pf-product-category,.library-book-category){min-height:0;margin:0 0 9px!important;font-size:.58rem;letter-spacing:.04em}
#main-content.commerce-page .catalog-flip-content h3{min-height:0;font-size:.88rem!important;line-height:1.35!important}
#main-content.commerce-page .catalog-book-facts{margin:12px 0 0!important;padding:9px 10px!important;border:0;background:var(--shop-surface,#fff);border-radius:7px;font-size:.66rem}
#main-content.commerce-page .catalog-flip-footer{background:transparent;padding-top:10px;margin-top:8px}
#main-content.commerce-page .catalog-flip-footer :is(.pf-price,.library-book-access strong){font-size:1.1rem!important}
#main-content.commerce-page .catalog-flip-footer .pf-btn{min-height:34px!important;font-size:.62rem!important}
#main-content.commerce-page .catalog-flip-close{margin-bottom:12px}
#main-content.commerce-page .catalog-save{width:29px;height:29px;font-size:1.1rem;top:9px;right:9px}
#main-content.commerce-page .catalog-flip-trigger{font-size:.62rem;padding-bottom:9px}
@media(max-width:600px){#main-content.commerce-page .catalog-flip-rotor{height:310px!important}}
@media(hover:hover) and (prefers-reduced-motion:no-preference){#main-content.commerce-page .catalog-flip-front img{transition:filter .2s!important}#main-content.commerce-page .catalog-flip-card:hover .catalog-flip-front img{filter:brightness(1.035)}}
#main-content.commerce-page .catalog-landscape-cover :is(.pf-product-card-media,.library-book-cover){height:60%!important;inset:10px 10px auto!important}
.catalog-cover-caption{position:absolute;left:16px;right:16px;bottom:42px;pointer-events:none;display:grid;gap:6px}
.catalog-cover-caption small{font-size:.52rem;font-weight:700;letter-spacing:.1em;color:var(--shop-accent,#c92535)}
.catalog-cover-caption strong{font-size:.72rem;line-height:1.4;color:var(--shop-ink,#211e1c);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
#main-content.commerce-page .catalog-flip-front{box-shadow:0 4px 12px #20181008}
#main-content.commerce-page .catalog-flip-trigger{border-top:1px solid transparent;transition:color .2s}
@media(hover:hover){#main-content.commerce-page .catalog-flip-card:hover .catalog-flip-trigger{color:var(--shop-accent,#c92535)}}
/* One clear path from search to the books. */
#main-content.pf-store-page .pf-store-catalog{margin-top:12px!important;scroll-margin-top:150px}
#main-content.pf-store-page .pf-section-head--catalog{margin:0 0 8px!important;padding:0!important}
#main-content.pf-store-page .pf-section-head--catalog h2{font-size:1.45rem!important;margin:2px 0!important}
#main-content.pf-store-page .pf-section-head--catalog p{font-size:.8rem;margin:0}
#main-content.pf-store-page .store-offer-details{padding:0!important;margin:8px 0 0!important;background:transparent;border:0}
.store-offer-details>summary,.store-browse-details>summary,.catalog-subject-drawer>summary{cursor:pointer;display:flex;align-items:center;gap:9px;list-style:none;font-size:.75rem;color:var(--shop-muted,#776f69);padding:6px 0}
.store-offer-details>summary::-webkit-details-marker,.store-browse-details>summary::-webkit-details-marker,.catalog-subject-drawer>summary::-webkit-details-marker{display:none}
.store-offer-details .pf-store-campaign-note{padding:12px;background:var(--shop-surface,#fff);border:1px solid var(--shop-line,#e7e0da);border-radius:8px;font-size:.75rem!important}
.store-browse-details{margin:0 0 4px;border-bottom:1px solid var(--shop-line,#e7e0da)}
#main-content.pf-store-page .store-browse-details .pf-book-category-nav{margin:6px 0 10px!important;padding:16px!important}
#main-content.pf-store-page .store-browse-details .pf-school-shortcuts{margin:10px 0 14px!important;padding:12px!important}
#main-content.pf-store-page .pf-store-filter{margin:0!important;padding:10px!important;gap:8px!important}
#main-content.pf-store-page .pf-store-filter :is(.pf-input,.pf-select,.pf-btn){min-height:40px!important;height:40px!important}
#main-content.pf-store-page .pf-catalog-toolbar{margin:8px 0 2px!important;padding:0!important;font-size:.75rem}
.catalog-subject-drawer{margin:0 0 4px}.catalog-subject-drawer>summary{padding:7px 0;font-size:.68rem;color:var(--shop-accent,#c92535)}.catalog-subject-drawer>summary::after{content:'⌄';margin-left:4px}.catalog-subject-drawer .catalog-subject-filters{margin:5px 0 10px}
#main-content.commerce-page .catalog-discovery{margin:8px 0 14px!important;padding:9px 12px!important;gap:12px;border-radius:8px;background:var(--shop-surface,#fff)}
#main-content.commerce-page .catalog-discovery-kicker,#main-content.commerce-page .catalog-discovery p{display:none}
#main-content.commerce-page .catalog-discovery h2{font-size:.8rem!important;margin:0!important;font-weight:600}
#main-content.commerce-page .catalog-discovery-actions{max-width:none;align-items:center}
#main-content.commerce-page .catalog-discovery-actions button{font-size:.65rem;padding:7px 10px}
#main-content.commerce-page .catalog-discovery-status:empty{display:none}
@media(max-width:700px){#main-content.commerce-page .catalog-discovery{flex-direction:row;flex-wrap:wrap}#main-content.pf-store-page .pf-section-head--catalog h2{font-size:1.25rem!important}}
/* Library: optional exploration, direct access to search and results. */
.library-browse-details{margin:16px 0 12px;border-bottom:1px solid var(--shop-line,#e7e0da)}
.library-browse-details>summary{display:flex;align-items:center;gap:9px;cursor:pointer;list-style:none;font-size:.78rem;font-weight:600;padding:11px 0;color:var(--shop-ink,#211e1c)}
.library-browse-details>summary::-webkit-details-marker{display:none}.library-browse-details>summary>i{color:var(--shop-accent,#c92535)}.library-browse-details>summary>span{margin-left:auto;font-size:.65rem;font-weight:400;color:var(--shop-muted,#776f69)}
#main-content.platform-library-page .library-browse-details .pf-book-category-nav{margin:4px 0 10px!important;padding:16px!important}
#main-content.platform-library-page .library-browse-details .pf-school-shortcuts{margin:10px 0 14px!important;padding:12px!important}
#main-content.platform-library-page .pf-filter-library{padding:16px!important;margin:0 0 16px!important;gap:12px!important}
#main-content.platform-library-page .pf-filter-library :is(.pf-input,.pf-select,.pf-btn){min-height:42px!important;height:42px!important}
#main-content.platform-library-page .pf-library-heading{margin:14px 0 10px!important;padding:0 0 10px!important;border-left:0!important;align-items:center}
#main-content.platform-library-page .pf-library-heading .platform-kicker,#main-content.platform-library-page .pf-library-heading p{display:none}
#main-content.platform-library-page .pf-library-heading h2{font-size:1.35rem!important;margin:0!important}
#main-content.platform-library-page .pf-library-count{padding:7px 10px;font-size:.7rem}
#main-content.platform-library-page .library-view-switch{margin:0 0 8px!important}
/* List view exposes both faces as an accessible horizontal book row. */
#main-content.commerce-page .library-list-view{grid-template-columns:1fr!important;gap:12px!important}
#main-content.commerce-page .library-list-view .catalog-flip-rotor{height:auto!important;min-height:175px!important;display:grid;grid-template-columns:115px minmax(0,1fr);gap:18px;transform:none!important;transform-style:flat;padding:14px;border:1px solid var(--shop-line,#e7e0da);border-radius:12px;background:var(--shop-surface,#fff);box-sizing:border-box}
#main-content.commerce-page .library-list-view :is(.catalog-flip-front,.catalog-flip-back){position:relative;inset:auto;transform:none!important;backface-visibility:visible;border:0;box-shadow:none;background:transparent;border-radius:0;overflow:visible}
#main-content.commerce-page .library-list-view .catalog-flip-front{min-height:147px}
#main-content.commerce-page .library-list-view .catalog-flip-front::after,#main-content.commerce-page .library-list-view :is(.catalog-flip-trigger,.catalog-flip-close){display:none!important}
#main-content.commerce-page .library-list-view .catalog-flip-front .library-book-cover{inset:0!important;width:100%!important;height:100%!important}
#main-content.commerce-page .library-list-view .catalog-save{top:3px;right:3px;width:26px;height:26px}
#main-content.commerce-page .library-list-view .catalog-flip-back{display:grid;grid-template-columns:minmax(0,1fr) 190px;gap:20px;padding:10px 0!important;cursor:default}
#main-content.commerce-page .library-list-view .catalog-flip-content{padding:0!important;overflow:visible!important}
#main-content.commerce-page .library-list-view .catalog-flip-content h3{display:block;min-height:0;font-size:1rem!important}
#main-content.commerce-page .library-list-view .library-book-authors{display:block!important;margin:8px 0!important}
#main-content.commerce-page .library-list-view .catalog-book-facts{padding:0!important;background:transparent;margin-top:8px!important;max-width:170px}
#main-content.commerce-page .library-list-view .catalog-flip-footer{margin:0!important;padding:0 0 0 18px!important;border-top:0;border-left:1px solid var(--shop-line,#e7e0da);align-self:center}
#main-content.commerce-page .library-list-view .catalog-compare-pick{position:static;grid-column:1/-1;grid-row:2;justify-self:start}
@media(max-width:600px){#main-content.commerce-page .library-list-view .catalog-flip-rotor{grid-template-columns:80px minmax(0,1fr);gap:12px;padding:12px}#main-content.commerce-page .library-list-view .catalog-flip-back{grid-template-columns:1fr;gap:10px;padding:0!important}#main-content.commerce-page .library-list-view .catalog-flip-footer{border:0;padding:0!important}#main-content.commerce-page .library-list-view .catalog-flip-content h3{font-size:.85rem!important}}