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:root{--paper:#f6f3ec;--surface:#fffcf5;--ink:#302e27;--muted:#797568;--line:#d9d2c4;--catalogue-red:#773a36;--catalogue-olive:#4c5945;--display:var(--font-book-text), "Songti SC", serif;--text-serif:var(--font-book-text), "Songti SC", serif}body{background:var(--paper);color:var(--ink)}h1,h2,h3{font-family:var(--display);font-synthesis:none}.brand-name{font-family:var(--font-shelf), var(--text-serif);color:var(--catalogue-red)}::selection{color:#292d25;background:#e1dfcb}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--catalogue-olive);outline-offset:3px}.library-frame{--rail-width:196px;padding-left:var(--rail-width)}.library-frame>.library-header{width:var(--rail-width);border-right:1px solid var(--line);z-index:35;background:#f2efe6;flex-direction:column;align-items:stretch;gap:0;height:100dvh;padding:32px 20px 22px;display:flex;position:fixed;inset:0 auto 0 0}.library-header .brand-home{align-self:center;margin-bottom:43px}.library-header .brand-lockup{flex-direction:column;gap:10px}.library-header .brand-mascot{width:64px;height:64px}.library-header .brand-name{letter-spacing:-.7px;font-size:34px}.library-header .library-menu-toggle{display:none}.desktop-primary-nav{flex-direction:column;align-items:stretch;gap:9px;display:flex}.desktop-primary-nav a{color:#57564a;border-left:3px solid #0000;padding:13px 16px;font-size:17px;font-weight:500;line-height:1.6}.desktop-primary-nav a[aria-current=page]{border-color:var(--catalogue-red);color:#35392e;background:#e2e3d4}.desktop-primary-nav a[aria-current=page]:after{display:none}.desktop-primary-nav a:hover{background:#e7e6db}.library-header-right{border-top:1px solid var(--line);flex-direction:column;align-items:stretch;gap:12px;margin-top:auto;padding-top:24px;display:flex}.library-area-label{color:#8c897c;letter-spacing:1.5px;padding-left:5px;font-size:10px}.account-menu summary{gap:9px;padding:8px 3px;font-size:12px}.account-initial{color:#515d46;background:#ececdf;border-color:#b4b9a5;border-radius:2px;width:29px;height:32px}.account-menu summary>span:not(.account-initial){max-width:87px}.account-menu summary>svg{margin-left:auto}.account-popover{background:var(--surface);border:1px solid #cac4b5;border-radius:2px;width:244px;padding:10px;inset:auto auto 0 calc(100% + 20px);box-shadow:4px 5px #e6e0d1,0 12px 30px #40372a12}.account-popover:before{content:"";background:#e8e5d8;border:1px solid #cac4b5;border-bottom:0;width:45px;height:7px;position:absolute;top:-7px;left:17px}.account-popover a,.account-popover button{color:#4d5044;border-radius:0}.account-popover a:hover,.account-popover button:hover{background:#e9ebdf}.library-login{border-color:var(--catalogue-red);text-align:center;color:var(--catalogue-red);border-radius:2px}.library-main{width:min(1280px,100% - 84px);padding:30px 0 50px}.library-footer{color:#888477;border-color:var(--line);width:min(1280px,100% - 84px)}.library-drawer{background:var(--paper);border-right:1px solid #c6c7b5;width:315px}.library-drawer::backdrop{background:#282e264d}.drawer-inner nav a.active{box-shadow:inset 3px 0 var(--catalogue-red);background:#e2e3d4}.drawer-title{font-weight:500}.management-nav{background:#f0ede3;padding:0 42px}.management-nav a.active{box-shadow:inset 0 -2px var(--catalogue-red)}.page-title,.library-main>div>div:first-child>h1{font-family:var(--display);letter-spacing:.8px;color:var(--ink);font-size:46px;font-weight:600;line-height:1.35}.page-intro{color:var(--muted)}.catalogue-kicker{font-family:var(--text-serif);align-items:center;gap:13px;margin-bottom:15px;display:flex}.catalogue-kicker>span:first-child{letter-spacing:2px;color:#938b7d;font-size:10px}.catalogue-kicker>span:nth-child(2){color:var(--catalogue-red);font-size:16px}.catalogue-kicker i{background:var(--line);flex:1;height:1px;margin-left:3px}.learning-page .page-heading-row{align-items:center;gap:34px;margin-bottom:30px}.learning-page .page-heading-row>div:first-child{flex-shrink:0}.learning-page .page-heading-row>.catalogue-search{width:min(600px,64%);margin-left:auto}.library-section-banner{border-color:var(--line);margin-bottom:27px;padding-bottom:22px}.text-link{color:var(--catalogue-red);text-underline-offset:5px;font-size:12px}.text-link:hover{color:#54312c;text-decoration:underline}.quiet-button{font-family:var(--text-serif);color:#4d5945;background:0 0;border:1px solid #aaa792;border-radius:2px}.quiet-button:hover{background:#e7e8dc;border-color:#647054}.course-toolbar{border:0;align-items:flex-end;gap:16px;padding:0}.library-tabs{align-items:stretch;gap:6px;display:flex;overflow:visible}.library-tabs button{min-width:118px;font-family:var(--text-serif);color:#6b685b;clip-path:polygon(0 0,calc(100% - 13px) 0,100% 13px,100% 100%,0 100%);background:#e8e3d6;border:1px solid #0000;border-bottom:0;border-radius:2px 0 0;padding:12px 23px 13px;font-size:16px;font-weight:500;position:relative}.library-tabs button:after{content:"";clip-path:polygon(0 0,0 100%,100% 100%);background:#d3ccbc;width:13px;height:13px;position:absolute;top:0;right:0}.library-tabs button.active{border-color:var(--catalogue-red);color:var(--catalogue-red);background:#fffcf4}.library-tabs button.active:after{background:var(--catalogue-red)}.library-tabs button:hover{color:var(--catalogue-red)}.library-tabs button:focus-visible{box-shadow:inset 0 0 0 2px var(--catalogue-olive);outline:0}.course-toolbar>.text-link{margin-bottom:10px}.category-filters{gap:4px;margin-top:16px}.category-filters button{border:0;padding:5px 13px;font-size:12px}.category-filters button.active{color:#43533a;background:#e2e5d8}.catalogue-result-count{border-top:1px solid var(--line);color:#8a8577;overflow-wrap:anywhere;justify-content:space-between;gap:16px;padding:12px 0 14px;font-size:11px;display:flex}.category-filters+.catalogue-result-count{margin-top:12px}.collection-hint{margin:10px 0;font-size:11px}.results-heading{margin:24px 0 20px}.results-heading h2{font-family:var(--display);color:var(--catalogue-red);font-size:25px;font-weight:500}.discovery-shelf{border-color:var(--line);margin-top:26px}.catalogue-search{z-index:12;width:100%;min-width:0;position:relative}.catalogue-search-field{color:#3f4938;background:#fdfbf5;border:1px solid #939983;border-radius:2px;align-items:center;min-width:0;height:49px;padding:4px;display:flex}.catalogue-search-field>svg{flex:none;margin:0 13px 0 12px}.catalogue-search-field input{width:100%;min-width:0;box-shadow:none;color:#353b2e;background:0 0;border:0;outline:none;flex:1;padding:8px 0;font-size:14px}.catalogue-search-field input:focus-visible{box-shadow:none;outline:none}.catalogue-search-field input::placeholder{color:#8b897b}.catalogue-search-field:focus-within{border-color:#46583c;box-shadow:0 0 0 1px #46583c}.search-submit{background:var(--catalogue-red);color:#fffaf1;min-width:65px;height:100%;font-family:var(--text-serif);border-radius:1px;flex:none;padding:0 17px;font-size:14px}.search-submit:hover{background:#5f2e2b}.search-clear{color:#81816f;border-right:1px solid var(--line);flex:none;margin-right:4px;padding:8px 11px;font-size:11px}.catalogue-suggestions{background:var(--surface);border:1px solid #cbc7b7;border-radius:2px;padding:8px 0;position:absolute;top:calc(100% + 7px);left:0;right:0;box-shadow:3px 4px #e5dfd0,0 12px 25px #332e2417}.search-index-label{letter-spacing:1px;color:#8a897b;border-bottom:1px solid #e6e0d3;padding:5px 17px 9px;font-size:10px}.catalogue-suggestions [role=option]{color:#474a3f;cursor:pointer;justify-content:space-between;align-items:center;gap:20px;padding:11px 17px;font-size:13px;display:flex}.catalogue-suggestions [role=option].is-active{background:#e5e7d9}.catalogue-suggestions [role=option]>span{overflow-wrap:anywhere;min-width:0}.catalogue-suggestions small{color:#858574;flex:none;max-width:35%;font-size:10px}.book-grid{--book-height:294px;grid-template-columns:repeat(4,minmax(0,1fr));gap:29px 38px;padding:10px 11px 0}.book-grid>.shelf-book:nth-child(n):before{display:none}.book-grid>.shelf-book:nth-child(4n+1):before{display:block}.shelf-book:before{top:var(--book-height);background:linear-gradient(#dcccac,#e5d5b7 25%,#cbb18a 27%,#d5bb94 82%,#a58a67);width:calc(100cqw + 22px);height:12px;left:-11px;box-shadow:0 11px 15px -6px #5e4c3240}.book-stage{margin:0 7px}.book-stage:hover .course-cover,.book-stage:focus-visible .course-cover{transform:perspective(1000px)rotateY(-7deg)translateY(-4px)}.course-cover-title{font-family:var(--text-serif);letter-spacing:-.5px;overflow-wrap:normal;max-height:4em;font-size:29px;font-weight:600;line-height:1.3}.course-cover-title .cover-title-long{letter-spacing:-1px;font-size:.82em}.book-cover-copy{top:27px;left:29px;right:12px}.course-cover-subtitle{font-family:var(--text-serif);margin-top:15px;font-size:10px;line-height:1.8}.course-cover-edition{font-family:var(--text-serif);background:0 0;font-size:8px}.book-information{flex-direction:column;align-items:stretch;gap:0;margin:29px 7px 0;display:flex}.book-progress{color:#6d6d5e;width:100%;max-width:none;font-size:11px;line-height:1.7}.reading-line{background:0 0;border:1px solid #ada993;height:5px}.reading-line i{background:#824c43;height:100%}.book-progress .reading-line{margin-bottom:7px}.book-lesson-count{color:#6d6d5e;min-height:32px;padding:0;font-size:11px;line-height:1.7}.book-catalogue-data{gap:4px;margin:14px 0;font-size:11px;line-height:1.65;display:grid}.book-catalogue-data>div{grid-template-columns:34px minmax(0,1fr);gap:12px;display:grid}.book-catalogue-data dt{color:#8b877a}.book-catalogue-data dd{color:#55594b;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.course-action{min-height:34px;font-family:var(--text-serif);color:var(--catalogue-red);background:#faf8f1;border:1px solid #91675b;border-radius:1px;align-self:stretch;padding:6px 10px;font-size:13px;font-weight:500}.course-action:hover{color:#fff9ec;background:var(--catalogue-red);border-color:var(--catalogue-red)}.course-save{font-family:var(--font-sans);color:#8a8778;margin:7px 7px 0 auto;font-size:10px}.course-save.is-saved{color:#4c5945;border-color:#9ca48a}.library-panel{border:1px solid var(--line);box-shadow:none;background:#fcfaf4;border-radius:2px}.library-panel thead{background:#eae8dd}.library-panel th{color:#747967}.library-panel tbody tr:hover{background:#eeeee3}.library-button{font-family:var(--text-serif);box-shadow:none;border:1px solid #0000;border-radius:2px;min-height:34px;font-weight:500}.library-button.border{border-color:#b6b69f}.library-button:hover{box-shadow:none}.catalogue-badge{border:1px solid #b8bba744;border-radius:1px;line-height:1.6}.catalogue-input,.library-frame textarea,.auth-page textarea,.library-frame select,.auth-page select{box-shadow:none;border-color:#b8baa7;border-radius:2px}.catalogue-input:focus,.library-frame textarea:focus,.auth-page textarea:focus{border-color:#57654a;outline:none;box-shadow:0 0 0 1px #57654a}.library-frame input:not([type=checkbox]):not([type=radio]),.auth-page input:not([type=checkbox]):not([type=radio]){border-radius:2px}.library-frame input[type=checkbox],.auth-page input[type=checkbox],.library-frame input[type=radio]{accent-color:var(--catalogue-olive)}.library-empty{border:1px solid var(--line);background:#f1eee4;border-radius:2px}.empty-title{color:#505844;font-weight:500}.weekly-paper{background:#fffcf4;border-color:#cbc5b5 #cbc5b5 #cbc5b5 #8d987c;border-left-style:solid;border-left-width:3px;position:relative;box-shadow:3px 4px #e7e2d6}.weekly-paper h2{font-family:var(--text-serif)}.catalogue-dialog{width:calc(100% - 40px);max-height:90dvh;color:var(--ink);background:0 0;border:0;margin:auto;padding:15px 0 4px;overflow:visible}.catalogue-dialog::backdrop{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#2c302655}.catalogue-dialog-paper{background:#fffcf3;border:1px solid #bfb9a6;border-radius:2px;padding:27px 28px 28px;position:relative;box-shadow:5px 5px #e3ddcc,0 18px 60px #2027192e}.catalogue-dialog-paper:before{content:"";clip-path:polygon(0 0,calc(100% - 14px) 0,100% 100%,0 100%);background:#ede7d7;border:1px solid #bfb9a6;border-bottom:0;width:104px;height:14px;position:absolute;top:-14px;left:28px}.catalogue-dialog-heading{border-bottom:1px solid 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.course-cover:before,.course-cover:after{display:none}.book-front{isolation:isolate;background:var(--cover-color);border-radius:inherit;transform-origin:0;position:absolute;inset:0;overflow:hidden}.book-front:before{content:"";z-index:-1;background:linear-gradient(180deg,var(--cover-color),transparent 67%);opacity:.75;pointer-events:none;position:absolute;inset:0}.book-front:after{content:"";pointer-events:none;position:absolute;inset:0;box-shadow:inset 0 0 0 1px #ffffff35,inset 21px 0 15px -20px #2e2012}.course-cover.can-open{isolation:auto;transform-style:preserve-3d;perspective:2000px;perspective-origin:0;background:var(--cover-color);overflow:visible}.can-open .book-front{z-index:5;backface-visibility:hidden;transition:transform .8s cubic-bezier(.2,.65,.2,1),box-shadow .6s;transform:rotateY(0);box-shadow:2px 0 5px #3c30281c}.book-paper-block{transform-style:preserve-3d;display:block;position:absolute;inset:4px 2px 4px 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17%}.leaf-back{z-index:2}.leaf-front{z-index:3}.book-stage{perspective:none}.book-stage .can-open{transition:transform .55s cubic-bezier(.2,.65,.2,1),box-shadow .55s}.book-save-ribbon{z-index:6;clip-path:polygon(0 0,100% 0,100% 100%,50% 82%,0 100%);opacity:0;background:linear-gradient(90deg,#733129,#a45441 55%,#87392f);border-inline:1px solid #6e312d50;width:15px;height:39px;transition:transform .5s cubic-bezier(.22,1.35,.4,1),opacity .18s;position:absolute;top:0;right:15px;transform:translateY(-110%)}.has-bookmark .book-save-ribbon{opacity:1;transform:translateY(0)}.book-stage:focus-visible .can-open{transform:translateY(-10px);box-shadow:12px 17px 24px #263c3026}.book-stage:focus-visible .book-front{transform:rotateY(-56deg);box-shadow:7px 3px 12px #3c302825}.book-stage:focus-visible .leaf-front{transition-delay:70ms;transform:rotateY(-41deg)}.book-stage:focus-visible .leaf-back{transition-delay:.14s;transform:rotateY(-22deg)}.shelf-book:focus-within{z-index:4}.brand-mascot{width:var(--mascot-size);height:var(--mascot-size);flex:none;display:block;position:relative}.mascot-reader{transform-origin:50% 82%;display:block;position:absolute;inset:0}.mascot-art{object-fit:contain;width:100%;height:100%;display:block}.mascot-pages{pointer-events:none;width:100%;height:100%;position:absolute;inset:0;overflow:hidden}.mascot-page{fill:#f4ead2;stroke:#9a6d51;stroke-width:4px;stroke-linejoin:round;opacity:0}.brand-home{-webkit-user-select:none;user-select:none}.brand-name{display:inline-flex;position:relative}.brand-letter{transform-origin:50% 90%;display:inline-block}.brand-name:after{content:"";opacity:0;transform-origin:0;background:currentColor;width:90%;height:1px;transition:transform .65s,opacity .4s;position:absolute;bottom:-7px;left:5%;transform:scaleX(.2)}.brand-home:focus-visible{--bird-nod:bird-reading;--bird-page:bird-turn-page;--wordmark-motion:letter-reading;--wordmark-rule:1}.brand-home .mascot-reader{animation:var(--bird-nod,none) 2.6s ease-in-out}.brand-home .mascot-page{animation:var(--bird-page,none) 2.6s ease-in-out}.brand-home .brand-letter{animation:var(--wordmark-motion,none) .95s calc(var(--letter-index) * 65ms) ease-in-out both}.brand-home .brand-name:after{opacity:var(--wordmark-rule,0);transform:scaleX(var(--wordmark-rule,.2))}@keyframes bird-reading{0%,to{transform:rotate(0)}23%,52%{transform:translateY(1px)rotate(2deg)}76%{transform:rotate(-.6deg)}}@keyframes bird-turn-page{0%,12%{d:path("M632 808 C708 754 805 716 888 698 L881 722 C792 741 704 775 632 829 Z");opacity:0}21%{d:path("M632 808 C708 754 805 716 888 698 L881 722 C792 741 704 775 632 829 Z");opacity:1}46%{d:path("M632 808 C654 741 667 694 652 666 L668 682 C684 733 659 784 632 829 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0,100% 0,100% 100%,50% 78%,0 100%);background:#963f33;width:8px;height:20px;transition:transform .55s cubic-bezier(.22,1.25,.4,1),opacity .2s;top:0;right:12px;transform:translateY(-24px)}[data-shelf-tab=finished] .shelf-tab-detail{outline-offset:2px;border:1px solid #8a302b80;outline:1px solid #8a302b40;width:56px;height:27px;transition:transform .4s,opacity .3s;top:calc(50% - 13px);left:calc(50% - 28px);transform:scale(1.14)rotate(-7deg)}.library-tabs button:focus-visible{--tab-lift:-3px;--tab-fold:-10deg;--tab-detail:1;--tab-ribbon:0px;--tab-stamp:1;--tab-reading:tab-page-ink;--tab-press:tab-stamp-ink}.library-tabs button{transform:translateY(var(--tab-lift,0))}.library-tabs button:after{transform:skewY(var(--tab-fold,0deg))}.library-tabs .shelf-tab-detail{opacity:var(--tab-detail,0)}[data-shelf-tab=reading] .shelf-tab-detail,[data-shelf-tab=all] .shelf-tab-detail{transform:scaleX(var(--tab-detail,0));animation:var(--tab-reading,none) .65s ease both}[data-shelf-tab=saved] .shelf-tab-detail{transform:translateY(var(--tab-ribbon,-24px))}[data-shelf-tab=finished] .shelf-tab-detail{transform:scale(var(--tab-stamp,1.14)) rotate(-3deg)}[data-shelf-tab=finished] .shelf-tab-label{animation:var(--tab-press,none) .45s ease}@keyframes tab-page-ink{0%{clip-path:inset(0 100% 0 0)}55%{clip-path:inset(0);transform:translateY(-2px)}to{clip-path:inset(0);transform:translateY(0)}}@keyframes tab-stamp-ink{0%,to{transform:scale(1)}55%{transform:scale(.95)}}.catalogue-result-actions{flex-wrap:wrap;justify-content:flex-end;gap:8px 18px;display:flex}.primary-nav-link{transition:background .3s,color .3s,box-shadow .3s}.primary-nav-label{transform:translateX(var(--nav-shift,0));transition:transform .3s;display:block}.primary-nav-link>svg{overflow:visible}.nav-shelf-book{transform-box:fill-box;transform-origin:bottom;animation:var(--nav-books,none) .75s ease both}.nav-book-two{animation-delay:80ms}.nav-book-three{animation-delay:.16s}.nav-index-card{transform-box:fill-box;transform-origin:bottom;transform:translateY(var(--nav-card,0)) rotate(var(--nav-card-tilt,0deg));transition:transform .4s cubic-bezier(.22,1.25,.4,1)}.nav-index-drawer{transform:translateY(var(--nav-drawer,0));transition:transform .4s}.nav-manual-cover{transform-box:fill-box;transform-origin:0;transform:scaleX(var(--nav-cover,1)) skewY(var(--nav-cover-angle,0deg));transition:transform .45s}.nav-manual-pages{transform:translateX(var(--nav-pages,0));transition:transform .45s}.primary-nav-link:focus-visible{--nav-shift:3px;--nav-books:nav-books-lift;--nav-card:-3px;--nav-card-tilt:-5deg;--nav-drawer:1px;--nav-cover:.8;--nav-cover-angle:-7deg;--nav-pages:1px}@keyframes 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.shelf-action-label{transform:translate(10px)}.course-action-enroll:focus-visible:not(:disabled) .shelf-action-scene{opacity:1;transform:translateY(0)}.course-action-enroll:focus-visible:not(:disabled) .arriving-book{animation:.75s 80ms both book-to-shelf}.book-tools .course-save{border-bottom-color:#0000;position:relative}.course-save>span{transition:transform .3s,color .3s;display:inline-block}.course-save:after{content:"";transform-origin:0;background:#903e32;width:100%;height:1px;transition:transform .35s;position:absolute;bottom:3px;left:0;transform:scaleX(0)}.course-save:focus-visible>span{color:#8a302b;transform:translateY(-2px)}.course-save:focus-visible:after,.course-save.is-saved:after{transform:scaleX(1)}.shelf-book:has(.course-save:focus-visible) .book-save-ribbon{opacity:1;transform:translateY(0)}.shelf-book:has(.course-save.is-saved:focus-visible) .book-save-ribbon{transform:translateY(-6px)}@keyframes book-to-shelf{0%{opacity:0;transform:translate(7px,-18px)rotate(24deg)}38%{opacity:1;transform:translateY(-8px)rotate(8deg)}72%{transform:translateY(1px)rotate(-3deg)}to{opacity:1;transform:translate(0)rotate(0)}}@keyframes book-settle{0%,to{transform:translateY(0)}35%{transform:translateY(-7px)}78%{transform:translateY(1px)}}@media (hover:hover) and (pointer:fine){.shelf-book:hover{z-index:4}.book-stage:hover .can-open{transform:translateY(-10px);box-shadow:12px 17px 24px #263c3026}.book-stage:hover .book-front{transform:rotateY(-56deg);box-shadow:7px 3px 12px #3c302825}.book-stage:hover .leaf-front{transition-delay:70ms;transform:rotateY(-41deg)}.book-stage:hover .leaf-back{transition-delay:.14s;transform:rotateY(-22deg)}.brand-home:hover{--bird-nod:bird-reading;--bird-page:bird-turn-page;--wordmark-motion:letter-reading;--wordmark-rule:1}.library-tabs button:hover{--tab-lift:-3px;--tab-fold:-10deg;--tab-detail:1;--tab-ribbon:0px;--tab-stamp:1;--tab-reading:tab-page-ink;--tab-press:tab-stamp-ink}.primary-nav-link:hover{--nav-shift:3px;--nav-books:nav-books-lift;--nav-card:-3px;--nav-card-tilt:-5deg;--nav-drawer:1px;--nav-cover:.8;--nav-cover-angle:-7deg;--nav-pages:1px}.course-action-enroll:hover:not(:disabled) .shelf-action-label{transform:translate(10px)}.course-action-enroll:hover:not(:disabled) .shelf-action-scene{opacity:1;transform:translateY(0)}.course-action-enroll:hover:not(:disabled) .arriving-book{animation:.75s 80ms both book-to-shelf}.shelf-book:has(.course-action-enroll:hover:not(:disabled)) .book-stage{animation:.75s both book-settle}.course-save:hover>span{color:#8a302b;transform:translateY(-2px)}.course-save:hover:after{transform:scaleX(1)}.shelf-book:has(.course-save:hover) .book-save-ribbon{opacity:1;transform:translateY(0)}.shelf-book:has(.course-save.is-saved:hover) .book-save-ribbon{transform:translateY(-6px)}}.book-grid.is-sorting .book-front,.book-grid.is-sorting .book-turn-leaf{transition:none;transform:rotateY(0)}.book-grid.is-sorting .book-stage{animation:none}.book-grid.is-sorting .book-stage .can-open{transform:perspective(1000px)rotateY(-5deg)}.book-grid.is-sorting .book-save-ribbon{opacity:0}.book-grid.is-sorting .has-bookmark .book-save-ribbon{opacity:1}@media (max-width:640px){.book-save-ribbon{width:12px;height:30px;right:10px}}@media (prefers-reduced-motion:reduce){.brand-home .mascot-reader,.brand-home .mascot-page,.brand-home .brand-letter,.shelf-book .book-stage,.course-action-enroll .arriving-book,.library-tabs .shelf-tab-detail,.library-tabs .shelf-tab-label{animation:none!important}.brand-home .mascot-pages{opacity:0!important}.book-stage .can-open,.book-stage .book-front,.book-stage .book-turn-leaf{transition:none!important;transform:none!important}.shelf-action-label,.shelf-action-scene,.course-save>span,.course-save:after,.book-save-ribbon{transition:none!important}.library-tabs button,.library-tabs button:after{transition:none!important;transform:none!important}.library-tabs .shelf-tab-detail,.brand-home .brand-name:after{transition:none!important}.primary-nav-link,.primary-nav-label,.primary-nav-link svg *{transition:none!important;animation:none!important;transform:none!important}}