/* Biblioteca 1ARC% — catálogo, ficha, lector y cierre. Usa los tokens de design.css. */
.lib-page{--serif:'Literata',Georgia,'Times New Roman',serif;max-width:880px;margin:auto;padding-bottom:120px;gap:26px}
.lib-page a{color:inherit;text-decoration:none}
.lib-page svg:not(.logo){width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
.lib-page :focus-visible{outline:2px solid var(--signal,var(--accent));outline-offset:3px;border-radius:8px}
.lib-eyebrow{display:block;font:600 .8125rem/1.4 var(--body);color:var(--muted)}
.lib-head p{font:400 .9375rem/1.5 var(--body);color:var(--muted);margin:8px 0 0;max-width:560px}
.lib-head small{display:block;margin-top:8px;font:500 .8125rem var(--body);color:var(--muted)}

/* Barra de progreso */
.lib-bar{display:block;height:4px;border-radius:4px;background:var(--fill,var(--line));overflow:hidden}
.lib-bar i{display:block;height:100%;border-radius:inherit;background:var(--signal,var(--accent));transition:width .4s var(--ease,ease)}

/* 1ARC editions: original engraved art, literary typography and tactile print surfaces. */
.lib-cover{--cover-bg:#e6dfce;--cover-ink:#252d28;--cover-accent:#b45436;container-type:inline-size;aspect-ratio:3/4;box-sizing:border-box;position:relative;overflow:hidden;border-radius:2px 5px 5px 2px;box-shadow:inset 1px 0 #ffffff30,inset -1px 0 #00000025,0 8px 18px -10px #00000080;display:block;color:var(--cover-ink);background:var(--cover-bg);isolation:isolate}
.lib-cover::before{content:'';position:absolute;inset:0;z-index:3;pointer-events:none;opacity:.18;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='grain'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.88' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' opacity='.38' filter='url(%23grain)'/%3E%3C/svg%3E");background-size:130px 130px;mix-blend-mode:multiply}
.lib-cover::after{content:'';position:absolute;inset:0;z-index:4;pointer-events:none;background:linear-gradient(90deg,#0000001f,transparent 2%,#ffffff14 3%,#0000000e 4%,transparent 5%);border:1px solid #ffffff10;border-radius:inherit}
.lib-cover-masthead{position:absolute;left:10%;right:9%;top:6.5%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid color-mix(in srgb,var(--cover-ink) 35%,transparent);padding-bottom:4%;z-index:1}
.lib-page .lib-cover .lib-cover-brand{font:800 clamp(8px,4.9cqw,13px)/1 var(--body);letter-spacing:-.07em;color:inherit}
.lib-cover-brand>span{margin-left:1px;font-weight:500}
.lib-cover-number{font:500 clamp(7px,3.6cqw,10px)/1 var(--body);letter-spacing:.12em;font-variant-numeric:tabular-nums}
.lib-page .lib-cover .lib-cover-title{position:absolute;left:10%;right:8%;top:18%;z-index:2;margin:0;font:400 clamp(16px,12.4cqw,34px)/1.12 var(--serif);letter-spacing:-.055em;text-transform:none;text-wrap:balance;overflow-wrap:normal;color:inherit}
.lib-cover-title>span{display:block}
.lib-cover-title-last{font-style:italic;letter-spacing:-.06em}
.lib-page .lib-cover-long .lib-cover-title{font-size:clamp(11px,9.2cqw,26px);line-height:1.18}
.lib-page .lib-cover .lib-cover-art{position:absolute;left:0;bottom:13%;width:100%;height:44%;fill:none;stroke:none;stroke-linecap:round;stroke-linejoin:round;overflow:hidden;color:var(--cover-ink)}
.lib-cover .lib-cover-accent{fill:var(--cover-accent)}
.lib-cover-footer{position:absolute;left:10%;right:9%;bottom:5.5%;display:flex;flex-direction:column;gap:1.7cqw;border-top:1px solid color-mix(in srgb,var(--cover-ink) 35%,transparent);padding-top:3.5%}
.lib-page .lib-cover .lib-cover-topic{font:600 clamp(6px,3cqw,8px)/1 var(--body);letter-spacing:.16em;text-transform:uppercase;color:inherit}
.lib-cover-publisher{font:400 clamp(5px,2.25cqw,6.5px)/1 var(--body);letter-spacing:.19em}
.lib-sand{--cover-bg:#e6dfce;--cover-ink:#252d28;--cover-accent:#b45436}
.lib-teal{--cover-bg:#1c3d38;--cover-ink:#eee4ce;--cover-accent:#c4a16c}
.lib-blue{--cover-bg:#cbd7d8;--cover-ink:#203e46;--cover-accent:#886e45}
.lib-olive{--cover-bg:#393f30;--cover-ink:#eee7d4;--cover-accent:#b8bf87}
.lib-night{--cover-bg:#1c2836;--cover-ink:#ece2c8;--cover-accent:#bca275}
.lib-plum{--cover-bg:#51333f;--cover-ink:#f0e2d4;--cover-accent:#d2a585}
.lib-gold{--cover-bg:#ddbb72;--cover-ink:#302f27;--cover-accent:#8b4936}
.lib-rust{--cover-bg:#913f30;--cover-ink:#f1dfca;--cover-accent:#dfb67b}
.lib-ink{--cover-bg:#e2d9c7;--cover-ink:#25463f;--cover-accent:#a36042}
.lib-steel{--cover-bg:#263331;--cover-ink:#ece3ce;--cover-accent:#99b0a2}
.lib-cover-sm{width:64px;flex:none;border-radius:2px 3px 3px 2px}
.lib-page .lib-cover-sm .lib-cover-masthead,.lib-page .lib-cover-sm .lib-cover-footer{display:none}
.lib-page .lib-cover-sm .lib-cover-title{font-size:.5312rem;line-height:1.13;top:10%}
.lib-page .lib-cover-sm.lib-cover-long .lib-cover-title{font-size:.4188rem}
.lib-page .lib-cover-sm .lib-cover-art{bottom:3%;height:48%}
.lib-cover-lg{width:min(240px,60vw);flex:none;padding:0}
.lib-page .lib-card .lib-cover{width:100%;padding:0;flex:none}

/* Seguir leyendo / recomendado */
.lib-now{display:flex;align-items:center;gap:16px;padding:14px 16px 14px 14px;background:var(--surface);border-radius:var(--r-card,20px);transition:transform .2s var(--ease,ease)}
.lib-now:active{transform:scale(.985)}
.lib-now-text{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}
.lib-now-text strong{font:600 1.1875rem/1.2 var(--body);letter-spacing:-.015em}
.lib-now-text small{font:400 .875rem/1.35 var(--body);color:var(--muted);overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.lib-now-text .lib-bar{margin-top:6px;max-width:260px}
.lib-now-go{color:var(--muted)}

/* Controles del catálogo */
.lib-browse{display:flex;flex-direction:column;gap:14px}
.lib-controls{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.lib-seg{display:flex;background:var(--fill,var(--surface));border-radius:var(--r-ctl,12px);padding:3px;flex:none}
.lib-seg button{border:0;background:transparent;color:var(--ink);font:500 .875rem var(--body);padding:8px 14px;min-height:36px;border-radius:9px;cursor:pointer}
.lib-seg [aria-pressed=true]{background:var(--bg);box-shadow:0 1px 3px rgba(0,0,0,.14);font-weight:600}
.lib-search{flex:1;min-width:180px}
.lib-search input{width:100%;box-sizing:border-box;border:0;background:var(--fill,var(--surface));color:var(--ink);font:400 16px var(--body);padding:10px 14px;min-height:42px;border-radius:var(--r-ctl,12px)}
.lib-chips{display:flex;gap:8px;overflow-x:auto;scrollbar-width:thin;scrollbar-color:var(--muted) transparent;margin:0;padding:0 0 5px}
.lib-chips::-webkit-scrollbar{height:3px}
.lib-chips::-webkit-scrollbar-thumb{background:var(--muted);border-radius:3px}
.lib-chips button{flex:none;border:1px solid var(--hair,var(--line));background:transparent;color:var(--ink);font:500 .875rem var(--body);padding:7px 14px;min-height:36px;border-radius:20px;cursor:pointer;white-space:nowrap}
.lib-chips [aria-pressed=true]{background:var(--ink);color:var(--bg);border-color:var(--ink)}

/* Rejilla */
.lib-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px 18px;margin-top:6px}
.lib-card{display:flex;flex-direction:column;gap:4px;min-width:0}
.lib-card .lib-cover{margin-bottom:8px;transition:transform .25s var(--ease,ease)}
.lib-card:hover .lib-cover{transform:translateY(-2px)}
.lib-card:active .lib-cover{transform:scale(.97)}
.lib-card-meta{display:flex;align-items:center;justify-content:space-between;min-height:20px}
.lib-card>strong{font:600 1rem/1.25 var(--body);letter-spacing:-.01em}
.lib-card>small{font:400 .8125rem/1.35 var(--body);color:var(--muted)}
.lib-card>em{font:500 .75rem/1.4 var(--body);font-style:normal;color:var(--muted);display:flex;align-items:center;gap:4px}
.lib-card>em svg{width:14px;height:14px;color:var(--signal,var(--accent));stroke-width:2.4}
.lib-card .lib-bar{margin-top:6px}
.lib-tag{font:700 .625rem/1 var(--body);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:4px 7px;border-radius:6px;background:var(--fill,var(--surface))}
.lib-tag-pro{color:var(--bg);background:var(--ink)}
.lib-fav-dot svg{width:16px;height:16px;fill:currentColor;stroke:none;color:var(--ink)}
.lib-empty{grid-column:1/-1;padding:28px 0;text-align:center;color:var(--muted)}
.lib-empty p{margin:0 0 12px}

/* Botones */
.lib-primary,.lib-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:14px;font:600 1rem var(--body);cursor:pointer;border:0;transition:transform .15s var(--ease,ease),opacity .15s}
.lib-primary{background:var(--ink);color:var(--bg)!important}
.lib-ghost{background:var(--fill,var(--surface));color:var(--ink)}
.lib-primary:active,.lib-ghost:active{transform:scale(.97)}
.lib-ghost[aria-pressed=true] svg{fill:currentColor}
.lib-ghost:disabled{opacity:.6;cursor:default;transform:none}
.lib-wide{width:100%;box-sizing:border-box}
.lib-back{display:inline-flex;align-items:center;gap:2px;font:500 1rem var(--body);color:var(--signal,var(--accent))!important;min-height:44px;margin-left:-6px;max-width:70%}
.lib-back span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* Ficha */
.lib-book-hero{display:flex;gap:28px;align-items:flex-end}
.lib-book-info{display:flex;flex-direction:column;gap:8px;min-width:0;flex:1}
.lib-book-info h1{font:600 clamp(30px,6vw,44px)/1.06 var(--serif);letter-spacing:-.025em;margin:0}
.lib-book-sub{font:400 1.0625rem/1.4 var(--body);color:var(--muted);margin:0}
.lib-book-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:4px 0 0;font:500 .8125rem var(--body);color:var(--muted)}
.lib-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.lib-book-progress{display:flex;flex-direction:column;gap:6px;max-width:320px;margin-top:6px}
.lib-book-progress small{font:500 .75rem var(--body);color:var(--muted)}
.lib-intro{font:400 1.1875rem/1.6 var(--serif);margin:0;max-width:640px}
.lib-toc h2,.lib-next h2{font:var(--t-head,600 20px/1.25 var(--body));letter-spacing:-.02em;margin:0 0 10px}
.lib-toc ol{list-style:none;margin:0;padding:0;background:var(--surface);border-radius:var(--r-card,20px);overflow:hidden}
.lib-toc li+li a{border-top:1px solid var(--hair,var(--line))}
.lib-toc a{display:flex;align-items:center;gap:14px;padding:14px 16px;min-height:56px;box-sizing:border-box}
.lib-toc a>svg{color:var(--muted);width:18px;height:18px}
.lib-num{width:28px;height:28px;flex:none;border-radius:50%;display:grid;place-items:center;font:600 .8125rem var(--body);background:var(--fill,var(--surface2));color:var(--ink)}
.lib-num svg{width:16px;height:16px;stroke-width:2.6;color:var(--signal,var(--accent))}
.lib-toc-t{flex:1;min-width:0;font:500 1rem/1.3 var(--body);display:flex;flex-direction:column;gap:2px}
.lib-toc-t small{font:400 .75rem var(--body);color:var(--muted)}
.lib-toc .is-locked .lib-toc-t{color:var(--muted)}
.lib-lock{color:var(--muted)}
.lib-pro{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;align-items:start;padding:20px;border-radius:var(--r-card,20px);background:var(--surface)}
.lib-pro>svg{margin-top:2px}
.lib-pro h3{font:600 1.0625rem/1.3 var(--body);margin:0}
.lib-pro p{font:400 .875rem/1.45 var(--body);color:var(--muted);margin:4px 0 0}
.lib-pro .lib-primary{grid-column:1/-1;margin-top:10px}
.lib-sources{font:400 .8125rem/1.5 var(--body);color:var(--muted)}
.lib-sources summary{cursor:pointer;font-weight:600;color:var(--ink);min-height:44px;display:flex;align-items:center}
.lib-sources ul{margin:0;padding-left:18px;display:flex;flex-direction:column;gap:8px}

/* Lector */
.lib-reading{max-width:720px}
.lib-reader-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:-14px}
.lib-tools{display:flex;gap:6px}
.lib-tools button{width:44px;height:40px;border:0;border-radius:var(--r-ctl,12px);background:var(--fill,var(--surface));color:var(--ink);font:600 1.1875rem var(--serif);cursor:pointer}
.lib-tools button small{font-size:.875rem}
.lib-tools button:disabled{opacity:.35;cursor:default}
.lib-reader{--lib-size:19px;font:400 var(--lib-size)/1.7 var(--serif);overflow-wrap:break-word;hyphens:auto}
.lib-reader>.lib-eyebrow{font-family:var(--body)}
.lib-reader h1{font:600 1.6em/1.15 var(--serif);letter-spacing:-.02em;margin:6px 0 26px}
.lib-reader>p{margin:0 0 1.1em}
.lib-reader>p:first-of-type::first-letter{float:left;font:600 3.2em/.86 var(--serif);margin:.08em .1em 0 0;color:var(--ink)}
.lib-keys,.lib-try{font-family:var(--body);border-radius:var(--r-card,20px);padding:20px 22px;margin:30px 0 0}
.lib-keys{background:var(--surface)}
.lib-keys h2,.lib-try h2{font:600 .8125rem/1.3 var(--body);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:0 0 12px}
.lib-keys ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:12px}
.lib-keys li{font:500 1.0625rem/1.4 var(--body);padding-left:20px;position:relative}
.lib-keys li:before{content:'';position:absolute;left:2px;top:.55em;width:7px;height:7px;border-radius:50%;background:var(--signal,var(--accent))}
.lib-try{border:1.5px solid var(--ink);margin-top:14px}
.lib-try p{font:500 1.125rem/1.45 var(--body);margin:0 0 16px}
.lib-try small{display:block;margin-top:10px;font:400 .8125rem var(--body);color:var(--muted)}
.lib-try .lib-ghost{background:var(--ink);color:var(--bg)}
.lib-try .lib-ghost:disabled{background:var(--fill,var(--surface));color:var(--ink);opacity:1}
.lib-try .lib-ghost:disabled svg{color:var(--signal,var(--accent));stroke-width:2.6}
.lib-nav{display:flex;justify-content:space-between;gap:12px;padding-top:6px}
.lib-nav>*{flex:1;max-width:240px}
.lib-nav>.lib-primary{margin-left:auto}
.lib-locked h1{color:var(--muted)}
.lib-lock-card{font-family:var(--body);text-align:center;padding:32px 22px;border-radius:var(--r-card,20px);background:var(--surface);display:flex;flex-direction:column;align-items:center;gap:10px}
.lib-lock-card>svg{width:30px;height:30px}
.lib-lock-card h2{font:600 1.1875rem/1.3 var(--body);margin:4px 0 0}
.lib-lock-card p{font:400 .9375rem/1.5 var(--body);color:var(--muted);margin:0 0 8px;max-width:380px}
.lib-spin{width:26px;height:26px;border-radius:50%;border:2.5px solid var(--hair,var(--line));border-top-color:var(--ink);animation:lib-spin .8s linear infinite}
@keyframes lib-spin{to{transform:rotate(360deg)}}

/* Cierre */
.lib-done{text-align:center;display:flex;flex-direction:column;align-items:center;gap:6px;padding:10px 0}
.lib-done-mark{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:var(--bg);margin-bottom:8px;animation:lib-pop .5s var(--ease,ease) both}
.lib-done-mark svg{width:30px;height:30px;stroke-width:2.6}
.lib-done h1{font:var(--t-title,700 34px/1.08 var(--body));letter-spacing:-.03em;margin:0}
.lib-done>p{font:400 .9375rem var(--body);color:var(--muted);margin:0 0 10px}
.lib-done ol{text-align:left;margin:6px 0 0;padding:18px 20px 18px 40px;background:var(--surface);border-radius:var(--r-card,20px);display:flex;flex-direction:column;gap:10px;font:500 1rem/1.4 var(--body);width:100%;box-sizing:border-box;max-width:560px}
@keyframes lib-pop{from{transform:scale(.6);opacity:0}}

@media (max-width:720px){.lib-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:560px){
 .lib-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 14px}
 .lib-controls{flex-direction:column;align-items:stretch}.lib-seg{display:grid;grid-template-columns:repeat(4,1fr)}.lib-seg button{padding:8px 4px}
 .lib-book-hero{flex-direction:column;align-items:center;text-align:center;gap:20px}.lib-book-meta,.lib-actions{justify-content:center}.lib-book-progress{align-self:center;width:100%}
 .lib-actions .lib-primary{flex:1}
 .lib-intro{font-size:1.125rem}
 .lib-nav>*{max-width:none}
}
@media (max-width:340px){.lib-grid{gap:20px 10px}.lib-cover{padding:10px}.lib-cover strong{font-size:1rem}}
@media (prefers-reduced-motion:reduce){.lib-page *{animation:none!important;transition:none!important}}
/* Listen mode */
.lib-listen-btn{color:inherit}
.lib-listen-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.lib-listen-btn.is-on{background:var(--signal,var(--accent));color:var(--on-accent,#fff)}
.lib-reader .is-speaking{background:color-mix(in srgb,var(--signal,var(--accent)) 16%,transparent);box-shadow:0 0 0 8px color-mix(in srgb,var(--signal,var(--accent)) 16%,transparent);border-radius:6px;transition:background .3s,box-shadow .3s}
.lib-player{position:fixed;left:12px;right:12px;bottom:calc(env(safe-area-inset-bottom,0px) + 84px);z-index:70;max-width:560px;margin:0 auto;display:flex;align-items:center;gap:10px;padding:10px 10px 10px 14px;border-radius:22px;overflow:hidden;
  background:color-mix(in srgb,var(--surface,#1c1c1e) 88%,transparent);-webkit-backdrop-filter:blur(22px) saturate(160%);backdrop-filter:blur(22px) saturate(160%);box-shadow:0 18px 44px rgba(0,0,0,.28),0 0 0 1px var(--hair,rgba(127,127,127,.2));animation:lib-pl-in .35s cubic-bezier(.2,.9,.2,1) both}
@keyframes lib-pl-in{from{transform:translateY(24px);opacity:0}}
.lib-player-bar{position:absolute;left:0;top:0;height:3px;width:var(--p);background:var(--signal,var(--accent));transition:width .4s}
.lib-player-ico{flex:none;width:36px;height:36px;border-radius:10px;display:grid;place-items:center;background:color-mix(in srgb,var(--signal,var(--accent)) 18%,transparent);color:var(--signal,var(--accent))}
.lib-player-ico svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.lib-player-txt{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px}
.lib-player-txt b{font:600 .875rem/1.2 var(--body);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lib-player-txt small{font:500 .75rem var(--body);color:var(--muted)}
.lib-player button{flex:none;min-width:40px;height:40px;border:0;border-radius:50%;background:transparent;color:inherit;font:700 .8125rem var(--body);display:grid;place-items:center;cursor:pointer}
.lib-player button svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round}
.lib-player .lib-player-main{background:var(--ink);color:var(--bg)}
.lib-player button:focus-visible{outline:2px solid var(--signal,var(--accent));outline-offset:2px}
@media (prefers-reduced-motion:reduce){.lib-player{animation:none}.lib-reader .is-speaking{transition:none}}