@view-transition{navigation:auto}@media (prefers-reduced-motion:reduce){@view-transition{navigation:none}}::view-transition-old(root),::view-transition-new(root){animation:none}::view-transition-group(*){animation-duration:.42s;animation-timing-function:cubic-bezier(.16,1,.3,1)}.play-discovery:has(.library-book-page){--browse-footer-gap:0px}.play-discovery .discovery-main:has(.library-book-page){min-height:0;padding-bottom:24px}.library-cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:44px 32px;display:grid}.library-card{--preview-ink:var(--subject-ink,var(--ink));grid-template:"art""copy"1fr/minmax(0,1fr);min-width:0;display:grid;position:relative;container:library-card/inline-size}.library-card-art{background:var(--subject-surface,var(--mint));height:148px;color:var(--subject-ink,var(--ink));border-radius:16px;grid-area:art;position:relative;overflow:hidden}.play-discovery .library-card-art .activity-preview{width:320px;height:200px;min-height:0;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)scale(.66)}.library-card-copy{flex-direction:column;grid-area:copy;min-width:0;padding-top:16px;display:flex}.library-card .library-card-meta{color:var(--muted);font-variant-numeric:tabular-nums;flex-wrap:wrap;align-items:baseline;gap:2px 8px;margin:10px 0 0;font-size:.875rem;line-height:1.5;display:flex}.library-card-meta>span:not([hidden])+span:not([hidden]):before{content:"·";color:var(--muted);margin-inline-end:8px}.library-card-status{color:var(--accent);font-weight:600}.library-card-title{letter-spacing:-.015em;text-wrap:balance;overflow-wrap:break-word;margin:0 0 6px;font-size:1.125rem;font-weight:600;line-height:1.35}.library-card-link{color:var(--ink);text-decoration:none}.library-card-link:after{content:"";z-index:1;border-radius:16px;position:absolute;inset:0}.library-card-link:focus-visible{outline:none}.library-card-link:focus-visible:after{outline:3px solid var(--accent);outline-offset:6px}.library-card-description{max-width:42ch;color:var(--muted);text-wrap:pretty;overflow-wrap:break-word;margin:0;font-size:.9375rem;line-height:1.6}.library-card-pair{min-height:44px;color:var(--muted);flex-wrap:wrap;align-items:center;column-gap:.3em;margin:0;font-size:.875rem;line-height:1.4;display:flex}.library-card-pair a{z-index:2;overflow-wrap:anywhere;min-width:0;min-height:44px;color:var(--accent);text-underline-offset:3px;align-items:center;font-weight:550;text-decoration:underline 1px;display:inline-flex;position:relative}.library-card-pair a:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}.library-card-save{z-index:2;width:44px;height:44px;color:var(--ink);font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:0;border-radius:50%;grid-area:art;place-self:start 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2px}.library-card-save:hover{color:var(--accent)}.library-card-save:hover .library-card-star{background:var(--accent-soft);border-color:var(--accent)}.library-card-pair a:hover{text-decoration-thickness:2px}}@media (prefers-reduced-motion:no-preference){.library-card-art,.library-card-save{transition:transform .2s cubic-bezier(.16,1,.3,1)}.library-card:has(.library-card-link:focus-visible) :is(.library-card-art,.library-card-save){transform:translateY(-3px)}}@media (hover:hover) and (prefers-reduced-motion:no-preference){.library-card:has(.library-card-link:hover,.library-card-save:hover) :is(.library-card-art,.library-card-save){transform:translateY(-3px)}}.library-rows{grid-template-columns:minmax(0,1fr);column-gap:32px;display:grid}.library-rows>.library-card{border-top:1px solid var(--line);grid-template:"art copy"/88px minmax(0,1fr);align-items:center;gap:10px 16px;padding:14px 0}.library-rows .library-card-art{border-radius:12px;align-self:start;height:88px}.play-discovery .library-rows .library-card-art .activity-preview{transform:translate(-50%,-50%)scale(.26)}.library-rows .library-card-copy{padding:0}.library-rows :is(.library-card-description,.library-card-pair){display:none}.library-rows .library-card-title{margin:0;font-size:1.0625rem}.library-rows .library-card .library-card-meta{margin-top:4px}.library-rows .library-card-save{margin:-3px -3px 0 0}.library-rows .library-card-star{width:30px;height:30px}.library-rows .library-card-save svg{width:17px;height:17px}.library-rows .library-card-save:focus-visible{outline-offset:-5px;background:0 0}.library-rows .library-card-link:after{border-radius:12px}.library-rows .library-card-link:focus-visible:after{outline-offset:3px}@media (width>=1000px){.library-rows{grid-template-columns:repeat(3,minmax(0,1fr))}}@container library-card (width<16rem){.library-card-copy{grid-area:2/1/auto/-1}.library-card-title{hyphens:auto}}.library-continue{border-top:1px solid var(--line);margin-top:36px;padding-top:32px;scroll-margin-top:96px}.library-section-heading{margin-bottom:16px}.library-section-heading h2,.library-results-heading h2{letter-spacing:-.02em;margin:0;font-size:1.5rem;font-weight:600;line-height:1.3}.library-continue .library-section-heading p{max-width:60ch;color:var(--muted);margin:6px 0 0;font-size:.9375rem;line-height:1.6}.library-more,.library-back{border:1px solid var(--control-border);min-height:44px;color:var(--ink);font:inherit;cursor:pointer;background:0 0;border-radius:8px;align-items:center;gap:8px;padding:0 16px;font-size:.9375rem;font-weight:550;display:inline-flex}.library-more{margin-top:20px}.library-back svg{width:18px;height:18px;transform:scaleX(-1)}.library-more:focus-visible,.library-back:focus-visible{outline:3px solid var(--accent);outline-offset:3px}@media (hover:hover){.library-more:hover,.library-back:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}}.library-results{margin-top:12px;scroll-margin-top:96px}.library-results-heading{border-bottom:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 24px;margin-bottom:28px;padding-bottom:20px;display:flex}.library-results-heading h2:focus{outline:none}.library-results-heading h2:focus-visible{outline:3px solid var(--accent);outline-offset:4px}.library-results .library-results-empty{color:var(--muted);margin:-8px 0 0;font-size:1rem;line-height:1.6}.library-book-topbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:4px 16px;margin:0 0 4px;display:flex}.play-discovery .library-breadcrumb{margin:0;font-size:.9375rem}.play-discovery .library-breadcrumb a{color:var(--accent)}.play-discovery .library-breadcrumb [aria-current]{color:var(--muted)}.library-book-topbar>.language-switcher{margin-inline-start:auto}.library-book-hero{isolation:isolate;grid-template-columns:220px minmax(0,1fr);align-items:end;gap:48px;padding:20px 0 35px;display:grid;position:relative}.library-book-hero:after{content:"";z-index:-1;aspect-ratio:2188/90;pointer-events:none;background:url(/campus/shelf-honey-maple.webp) 50% 51.0753%/100% 448.75% no-repeat;width:100%;position:absolute;bottom:35px;left:0;transform:translateY(65.625%)}.library-book-cover{perspective:1000px;min-width:0;padding:0 12px 0 20px}.library-book-intro{min-width:0;padding-bottom:20px}.play-discovery .library-book-intro h1{font-size:var(--browse-title-size);letter-spacing:-.03em;overflow-wrap:break-word;hyphens:auto;margin:0;line-height:1.1}.library-book-intro .library-book-description{max-width:52ch;color:var(--ink);text-wrap:pretty;margin:14px 0 0;font-size:1.125rem;line-height:1.55}.library-book-intro .library-book-count{color:var(--muted);font-variant-numeric:tabular-nums;margin:10px 0 0;font-size:.9375rem}.library-book-lessons{margin-top:44px}.library-book-page .campus-library-practice{margin-top:48px}.library-card-title:lang(ko),.library-card-description:lang(ko),.library-card-pair:lang(ko),.library-book-description:lang(ko),.library-section-heading p:lang(ko){word-break:keep-all;overflow-wrap:anywhere}@media (width<=850px){.library-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:40px 28px}.library-book-hero{grid-template-columns:188px minmax(0,1fr);gap:32px}.library-book-cover{padding-left:16px}}@media (width<=580px){.library-cards{grid-template-columns:minmax(0,1fr);gap:0}.library-cards>.library-card{border-top:1px solid var(--line);grid-template:"art copy"/112px minmax(0,1fr);gap:12px 16px;padding:20px 0}.library-cards>.library-card:first-child{border-top:0;padding-top:4px}.library-cards .library-card-art{border-radius:12px;align-self:start;height:84px}.play-discovery .library-cards .library-card-art .activity-preview{transform:translate(-50%,-50%)scale(.37)}.library-cards .library-card-copy{padding-top:0}.library-cards .library-card-save{margin:-3px -3px 0 0}.library-cards .library-card-star{width:30px;height:30px}.library-cards .library-card-save svg{width:17px;height:17px}.library-card-title{font-size:1.0625rem}.library-card-description{font-size:.875rem;line-height:1.55}.library-card-pair{min-height:40px}.library-cards .library-card-link:after{border-radius:0}.library-cards .library-card-link:focus-visible:after{outline-offset:2px}.library-rows>.library-card{grid-template-columns:72px minmax(0,1fr);column-gap:14px;padding:12px 0}.library-rows .library-card-art{height:72px}.play-discovery .library-rows .library-card-art .activity-preview{transform:translate(-50%,-50%)scale(.215)}.library-continue{margin-top:28px;padding-top:24px}.library-section-heading{margin-bottom:12px}.library-section-heading h2,.library-results-heading h2{font-size:1.3125rem}.library-results-heading{margin-bottom:8px;padding-bottom:12px}.library-more{margin-top:12px}.library-book-hero{grid-template-columns:136px minmax(0,1fr);gap:18px;padding:12px 0 27px}.library-book-hero:after{bottom:27px}.library-book-cover{padding:0 8px 0 12px}.library-book-intro{padding-bottom:12px}.library-book-intro .library-book-description{margin-top:8px;font-size:.9375rem;line-height:1.55}.library-book-intro .library-book-count{margin-top:6px;font-size:.875rem}.library-book-lessons{margin-top:24px}.library-book-page .campus-library-practice{margin-top:28px}}@media (width<=360px){.library-cards>.library-card{grid-template-columns:84px minmax(0,1fr);column-gap:12px}.library-cards .library-card-art{height:68px}.play-discovery .library-cards .library-card-art .activity-preview{transform:translate(-50%,-50%)scale(.28)}.library-book-hero{grid-template-columns:116px minmax(0,1fr);gap:14px}}@media (forced-colors:active){.library-card-art{forced-color-adjust:none;border:1px solid canvastext}.library-card-save{color:buttontext}.library-card-star{background:buttonface;border-color:buttontext}.library-card-save[aria-pressed=true] .library-card-star{border:2px solid highlight}.library-card:has(.library-card-link:focus-visible) .library-card-link{color:linktext}.library-card-link:focus-visible:after,.library-card-save:focus-visible{outline-color:highlight}}