:root{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#19344c;background:#f2f6f9;--navy:#153b5c;--lime:#b5df4c;--muted:#6b8091;--line:#d9e3e9;font-synthesis:none}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0}button,input,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #609626;outline-offset:3px}.skip{position:absolute;left:10px;top:-80px;z-index:20;background:white;padding:10px}.skip:focus{top:10px}.top{background:var(--navy);color:white;display:flex;justify-content:space-between;align-items:center;gap:15px;padding:20px max(22px,calc((100vw - 1480px)/2));border-bottom:4px solid var(--lime)}.brand{font-weight:850;letter-spacing:.1em;font-size:24px;color:inherit;text-decoration:none}.brand span{display:block;font-size:9px;letter-spacing:.2em;font-weight:500;margin-top:3px;color:#c9dbe8}.account{display:flex;align-items:center;gap:22px;font-size:12px}.back{color:white;text-decoration:none;border:1px solid #ffffff40;border-radius:8px;padding:9px 12px}main{max-width:1480px;margin:auto;padding:30px 22px 50px}.intro{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:10px 5px 34px}.eyebrow{font-size:10px;letter-spacing:.16em;font-weight:800;color:#5e7f96;margin:0 0 10px}.intro h1{font-size:clamp(30px,4vw,47px);letter-spacing:-.04em;line-height:1.05;margin:0 0 14px}.lead{font-size:15px;color:#647d91;line-height:1.6;max-width:650px;margin:0}.book-mark{background:var(--navy);color:white;border-left:6px solid var(--lime);padding:18px 24px;border-radius:3px 15px 15px 3px;display:flex;gap:15px;align-items:center;min-width:240px;box-shadow:0 10px 25px #153b5c14}.book-mark strong{font-size:48px;letter-spacing:-.06em;color:var(--lime)}.book-mark span{font-size:12px;line-height:1.5}.workspace{display:grid;grid-template-columns:265px minmax(0,1fr);gap:24px}.filters{background:white;border:1px solid var(--line);border-radius:14px;padding:19px;align-self:start;position:sticky;top:15px;max-height:calc(100vh - 30px);overflow:auto}.filter-heading{display:flex;justify-content:space-between;gap:10px;align-items:center}.filter-heading h2{font-size:14px;margin:0}.text-button{background:none;border:0;color:#2b6487;font-size:12px;padding:3px 0;text-decoration:underline;text-underline-offset:3px}.field{display:flex;flex-direction:column;gap:7px;font-weight:650;font-size:12px;margin-top:20px}.field input,.field select{border:1px solid #cbd8e1;border-radius:8px;background:white;padding:10px;min-height:42px;color:#19344c;width:100%;font-weight:400;font-size:13px}.field select{white-space:nowrap;text-overflow:ellipsis}fieldset{margin:22px 0 0;padding:0;border:0}legend{font-size:12px;font-weight:650}.hint{font-size:11px;line-height:1.5;color:var(--muted);margin:5px 0 10px}.chips{display:flex;flex-wrap:wrap;gap:6px}.chip{border:1px solid var(--line);border-radius:18px;background:#fff;padding:7px 10px;font-size:11px;color:#496276;min-height:34px}.chip[aria-pressed=true]{background:#e8f3d5;border-color:#93b955;color:#35550d;font-weight:700}.favorite-filter{display:flex;align-items:center;gap:8px;font-weight:650;font-size:13px;padding-top:20px;margin-top:20px;border-top:1px solid var(--line)}.favorite-filter input{accent-color:var(--navy);width:17px;height:17px}.favorite-filter span{background:#eff3f6;border-radius:12px;padding:1px 7px;margin-left:auto}.source-note{font-size:10px;line-height:1.6;color:#778b9a;margin:20px 0 0}.content{min-width:0}.resultbar{display:flex;justify-content:space-between;align-items:center;gap:12px}.resultbar h2{font-size:21px;margin:0;letter-spacing:-.02em}.resultbar .eyebrow{margin-bottom:5px}.availability{font-size:10px;color:#6e8292;background:#e8eff4;padding:6px 10px;border-radius:20px}.summary{font-size:12px;color:var(--muted);margin:9px 0 18px;min-height:18px}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.exercise{background:white;border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 3px 14px #153b5c04}.image-button{width:100%;padding:8px;background:white;border:0;border-bottom:1px solid #e7edf1;position:relative;cursor:zoom-in;display:block}.image-button img{display:block;object-fit:contain;width:100%;height:auto;aspect-ratio:1.85;background:white}.image-button .expand{position:absolute;right:8px;bottom:8px;background:#153b5ce8;color:white;border-radius:5px;font-size:9px;padding:4px 6px}.card-body{padding:12px 13px 8px;flex:1}.card-meta{display:flex;justify-content:space-between;gap:8px;color:#567587;font-size:10px}.card-meta strong{font-size:10px;color:#214b6a}.exercise h3{font-size:14px;line-height:1.35;margin:9px 0 8px;letter-spacing:-.01em}.exercise .sequence{font-size:10px;color:#5d7486;line-height:1.5;margin:0 0 8px}.card-footer{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:0 12px 11px}.badge{font-size:9px;border:1px solid #e0e8ed;color:#5b7385;border-radius:20px;padding:3px 7px;max-width:65%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.save{font-size:10px;border:0;background:#f0f5f8;color:#285573;border-radius:6px;padding:7px 8px}.save[aria-pressed=true]{background:#edf4d9;color:#4c6816}.pagination{display:flex;justify-content:center;align-items:center;gap:16px;margin:28px 0}.pagination span{font-size:12px;color:var(--muted)}.button{background:var(--navy);color:#fff;border:1px solid var(--navy);text-decoration:none;border-radius:8px;display:inline-flex;justify-content:center;align-items:center;padding:10px 13px;font-size:12px;min-height:40px}.button.secondary{background:white;color:#244e6b;border-color:#ccdae3}.empty{text-align:center;background:white;border:1px dashed #c6d5df;border-radius:12px;padding:45px 20px}.empty>span{font-size:40px;color:#658b9d}.empty h3{font-size:18px}.empty p{color:var(--muted);font-size:13px}.status{color:#9c3331;font-size:13px;margin-bottom:12px}.status:empty{display:none}.gate{max-width:600px;margin:90px auto;padding:30px}.gate h1{font-size:30px}.gate p{color:#6c8191}.preview{padding:12px 15px;background:#fff7d8;color:#795c18;border:1px solid #ecda9c;font-size:12px;border-radius:8px;margin:0 0 20px}dialog{padding:0;border:0;border-radius:15px;max-width:min(1140px,96vw);width:1140px;max-height:94dvh;color:#19344c;box-shadow:0 20px 90px #102b4b50}dialog::backdrop{background:#102639b8;backdrop-filter:blur(4px)}.dialog-head{position:sticky;top:0;background:white;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:15px;padding:18px 22px;border-bottom:1px solid var(--line)}.dialog-head h2{font-size:20px;margin:6px 0 0}.icon-button{background:#edf3f6;border:0;border-radius:50%;font-size:24px;width:38px;height:38px;flex-shrink:0;color:#204861}.detail-body{padding:18px 22px}.detail-tools{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-bottom:15px}.detail-tools a{margin-left:auto}.figure-scroll{background:#edf2f5;border:1px solid var(--line);border-radius:8px;overflow:auto;padding:10px}.figure-scroll img{display:block;width:100%;height:auto;margin:auto;background:white}.figure-scroll.zoomed img{width:1600px;max-width:none;cursor:grab}.detail-meta{display:grid;grid-template-columns:2fr 1fr 1fr;gap:18px;font-size:12px}.detail-meta strong{display:block;color:#638298;font-size:10px;letter-spacing:.04em;margin-bottom:5px}.detail-meta span{line-height:1.6}details{border-top:1px solid var(--line);padding:13px 0;font-size:13px}summary{cursor:pointer;color:#315972;font-weight:600}details p{line-height:1.7;max-width:850px}.preview~.workspace .availability{color:#976b15}
@media(min-width:1600px){.cards{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:1180px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.book-mark{min-width:210px}.workspace{gap:18px;grid-template-columns:245px minmax(0,1fr)}}@media(max-width:760px){.top{padding:16px}.account{gap:8px;flex-direction:column;align-items:flex-end}.account>span{font-size:10px}main{padding:22px 13px}.intro{padding:5px 2px 23px;gap:15px}.intro h1{font-size:32px}.lead{font-size:13px}.book-mark{display:none}.workspace{grid-template-columns:1fr}.filters{position:static;max-height:none;padding:16px;display:grid;grid-template-columns:1fr 1fr;gap:0 14px}.filter-heading,fieldset,.favorite-filter{grid-column:1/-1}.field{margin-top:14px}fieldset{margin-top:16px}.source-note{grid-column:1/-1;margin-top:12px}.favorite-filter{margin-top:15px;padding-top:13px}.availability{display:none}.cards{gap:10px}.card-body{padding:10px}.exercise h3{font-size:13px}.card-footer{padding:0 8px 9px}.badge{max-width:55%;font-size:8px}.card-meta{font-size:9px}.resultbar h2{font-size:20px}.detail-meta{grid-template-columns:1fr}.detail-meta p{margin:8px 0}.dialog-head{padding:14px}.dialog-head h2{font-size:17px}.detail-body{padding:12px}.detail-tools .button{font-size:11px;padding:8px 10px}.detail-tools a{font-size:10px}.figure-scroll{padding:3px}.pagination{gap:12px}.pagination .button{font-size:11px;padding:8px 10px}}@media(max-width:390px){.cards{grid-template-columns:1fr}.filters{grid-template-columns:1fr}.field{grid-column:1/-1}.brand{font-size:21px}}

.filter-toggle{display:none}@media(max-width:760px){.filter-toggle{display:block;border:1px solid #c9d9e4;background:white;border-radius:9px;color:#245372;padding:12px 16px;margin:0 0 16px;font-size:13px;font-weight:650;width:100%;text-align:left}.filters:not(.expanded){display:none}}

/* Identidad de la biblioteca */
.library-logo{display:block;width:240px;max-width:65vw;height:auto;margin:0 0 24px}.intro h1{max-width:1000px}.intro{padding-top:4px}@media(max-width:760px){.library-logo{width:205px;margin-bottom:20px}.intro h1{font-size:32px;line-height:1.12}}