.knowledge-library{width:min(1180px,96vw);max-width:1180px;max-height:94dvh;padding:0;border:1px solid #bd975c;border-radius:24px;background:#102c29;color:#f4edda;overflow:auto;box-shadow:0 30px 100px #0009}.knowledge-library::backdrop{background:#061b20c9;backdrop-filter:blur(5px)}.library-hero{position:relative;isolation:isolate;min-height:270px;display:flex;align-items:center;padding:38px;background:linear-gradient(90deg,#092821ef,#09282111),url('./library/hall.webp') center 48%/cover;overflow:hidden}.library-hero h2{font-size:clamp(1.8rem,4vw,3.5rem);color:#fff1d0;margin:8px 0}.library-hero>div{max-width:650px;z-index:1}.library-close,.library-motion{position:absolute;z-index:2;background:#12352fed;color:#f5e0ab;border:1px solid #bb9859}.library-close{top:14px;right:14px}.library-motion{bottom:12px;right:12px;font-size:.75rem;padding:8px}.library-motes{position:absolute;inset:-40px;pointer-events:none;background-image:radial-gradient(circle,#f5d27e 1px,transparent 3px),radial-gradient(circle,#6ee8ba 1px,transparent 3px);background-size:113px 137px,173px 193px;opacity:.45;animation:library-dust 14s linear infinite}.library-paused *{animation-play-state:paused!important}.library-content{padding:28px}.library-content h3,.library-content h4{color:inherit}.library-filters{display:grid;grid-template-columns:1fr 1fr 2fr;gap:16px}.library-filters label{color:#f1dfb4}.library-filters input,.library-filters select{width:100%;margin-top:8px}.library-shelves{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px 16px}.library-book{display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center;background:linear-gradient(#214138,#152e29);color:#faeed2;padding:12px 14px 20px;border:1px solid #8b744a;border-bottom:6px solid #ad8546;border-radius:14px;box-shadow:0 12px 14px #0005;transition:transform .25s,box-shadow .25s}.library-book:hover{transform:translateY(-5px);box-shadow:0 16px 28px #0008}.library-book strong{font-size:1rem;line-height:1.4}.library-book>span:last-child,.library-book-category{font-size:.75rem;font-weight:400;color:#d6d9c3}.library-book-art{display:block;width:100%;aspect-ratio:1;background-image:url('./library/books.webp');background-size:300% 300%;background-position:var(--bx) var(--by);border-radius:12px;mix-blend-mode:lighten}.library-reader-toolbar{display:flex;align-items:center;gap:20px;margin-bottom:20px}.library-reader{display:grid;grid-template-columns:240px minmax(0,1fr);gap:24px}.library-reader nav{display:flex;flex-direction:column;gap:8px}.library-reader nav .library-book-art{width:160px;align-self:center}.library-reader nav button{text-align:left;font-size:.85rem;padding:12px;background:#20453c;color:#efe6ce;border:1px solid #537869}.library-reader nav button[aria-current]{background:#d6b56d;color:#18302b}.library-page{background:#fff7e7;color:#233c37;border:1px solid #d3b77e;border-radius:12px 24px 24px 12px;box-shadow:inset 10px 0 15px #b3966c22;padding:30px;animation:library-page-in .25s ease-out}.library-page h3{font-size:1.7rem;margin-top:6px}.library-explanation,.learning-path>p{white-space:pre-line;line-height:1.8}.library-formula,.library-example,.library-tip{padding:16px 20px;border-radius:12px;margin:16px 0;white-space:pre-line;line-height:1.65}.library-formula{background:#e2ece0;border-left:5px solid #408064;color:#173d2d}.library-example{background:#e5ebfa;border-left:5px solid #597cba;color:#243f68}.library-tip{background:#fff0c8;border-left:5px solid #c99936;color:#61491f}.library-formula p,.library-example p{margin:6px 0 0}.library-check{border-top:1px solid #c9ba92;margin-top:24px;padding-top:10px}.library-check>div,.library-page-turn{display:flex;flex-wrap:wrap;gap:10px}.library-page-turn{justify-content:space-between;margin-top:26px}.library-check button{white-space:normal;text-align:left}.library-feedback.correct{color:#196043}.library-feedback.retry{color:#874023}.learning-path{background:#f5f6ed;border:1px solid #c9d8c5;border-radius:18px;padding:22px;margin:20px 0;color:#243f37}.learning-path h3{margin:5px 0 14px}.library-content .ghost{background:#e6e9d9;color:#23433a}.library-content button:focus-visible{outline:3px solid #49b8d1;outline-offset:3px}@keyframes library-dust{to{transform:translate(15px,-35px)}}@keyframes library-page-in{from{opacity:.4;transform:translateX(8px)}to{opacity:1;transform:none}}@media(max-width:760px){.library-shelves{grid-template-columns:repeat(2,minmax(0,1fr))}.library-filters{grid-template-columns:1fr 1fr}.library-filters label:last-child{grid-column:1/-1}.library-content{padding:16px}.library-hero{padding:24px;min-height:245px}.library-reader{grid-template-columns:1fr}.library-reader nav{flex-direction:row;overflow:auto;padding-bottom:8px}.library-reader nav .library-book-art{display:none}.library-reader nav button{flex:0 0 145px}.library-page{padding:20px}.library-reader-toolbar{flex-wrap:wrap}.library-book{padding:8px}.library-motion{font-size:.65rem}}@media(prefers-reduced-motion:reduce){.knowledge-library *{animation:none!important;transition:none!important}}

.knowledge-library .library-close{position:fixed;top:max(24px,5dvh);right:max(3vw,calc((100vw - 1180px)/2 + 14px));z-index:20}