:root{
  --paper:#f6f1e7; --paper-2:#efe7d6; --ink:#1f1a14; --ink-2:#5a5046; --rule:#d8ccb4;
  --accent:#7a2a1f; --accent-soft:#f0dcd3; --night:#16130f; --night-rule:#3d352b; --night-ink:#d9cfbd; --night-accent:#e3a08a;
  --serif-d:"Cormorant Garamond","EB Garamond",Garamond,"Iowan Old Style",Baskerville,"Palatino Linotype",Georgia,serif; --serif:"Source Serif 4","Iowan Old Style","Palatino Linotype",Charter,Georgia,serif; --sans:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --w:680px; --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--paper);color:var(--ink);font:400 1.25rem/1.75 var(--serif);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-underline-offset:3px}
h1,h2,h3{text-wrap:balance}

/* foco de teclado visible */
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}
.band :focus-visible,footer :focus-visible,.pop :focus-visible,dialog :focus-visible{outline-color:var(--night-accent)}
.skip{position:absolute;left:16px;top:-60px;z-index:50;background:var(--ink);color:#fff;padding:10px 16px;font:600 .8rem var(--sans);text-decoration:none;transition:top .2s}
.skip:focus{top:12px}

/* nav */
.nav{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--night) 94%,transparent);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--night-rule)}
.nav :focus-visible{outline-color:var(--night-accent)}
.nav-in{max-width:1180px;margin:auto;padding:10px 24px;min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{font:600 1.35rem/1 var(--serif-d);letter-spacing:.02em;color:#f3ece0;text-decoration:none}
.nav ul{list-style:none;display:flex;gap:26px;margin:0;padding:0}
.nav ul a{display:inline-block;padding:10px 0;font:500 .78rem/1 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:#c9bda8;text-decoration:none;transition:color .2s}
.nav ul a:hover{color:#fff}
.nav ul a[aria-current="page"]{color:var(--night-accent);box-shadow:inset 0 -2px 0 var(--night-accent)}
.menu-btn{display:none;align-items:center;gap:8px;min-height:44px;padding:0 12px;margin-right:-12px;background:none;border:0;cursor:pointer;font:600 .78rem var(--sans);letter-spacing:.12em;text-transform:uppercase;color:#f3ece0}
.menu-btn svg path{stroke:currentColor;stroke-width:1.6;stroke-linecap:round;transition:transform .25s var(--ease),opacity .2s;transform-origin:10px 10px}
.menu-btn[aria-expanded="true"] .l1{transform:rotate(45deg) translateY(4px)}
.menu-btn[aria-expanded="true"] .l2{opacity:0}
.menu-btn[aria-expanded="true"] .l3{transform:rotate(-45deg) translateY(-4px)}

/* hero (portada) */
.hero{max-width:1180px;margin:auto;padding:72px 24px 88px;display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:center}
.eyebrow{font:600 .75rem/1.5 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin:0 0 22px}
.hero h1{font:500 clamp(2.8rem,6vw,5.2rem)/.98 var(--serif-d);margin:0 0 28px;letter-spacing:-.01em}
.hero h1 em{font-style:italic;color:var(--accent)}
.hero .lede{font-size:1.25rem;color:var(--ink-2);max-width:30ch;margin:0 0 36px}
.facts{display:grid;grid-template-columns:repeat(3,auto);gap:28px;justify-content:start;border-top:1px solid var(--rule);padding-top:24px}
.facts b{display:block;font:600 2rem/1 var(--serif-d);color:var(--ink)}
.facts span{font:500 .72rem/1.3 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2)}
.hero figure{margin:0;position:relative;isolation:isolate}
.hero figure img{width:100%;height:auto;filter:sepia(.12) contrast(1.02)}
.hero figure::before{content:"";position:absolute;inset:18px -18px -18px 18px;border:1px solid var(--accent);z-index:-1}

/* cabecera de página interna */
.page-head{position:relative;overflow:hidden;isolation:isolate;padding:88px 24px 72px;text-align:center;background:radial-gradient(ellipse 70% 90% at 50% 0%,var(--paper-2),var(--paper) 70%)}
.page-head::before{content:attr(data-num);position:absolute;left:50%;top:50%;transform:translate(-50%,-52%);z-index:-1;font:500 clamp(10rem,26vw,20rem)/1 var(--serif-d);color:var(--accent);opacity:.07;pointer-events:none;white-space:nowrap}
.page-head h1{font:500 clamp(2.6rem,5.5vw,4.4rem)/1 var(--serif-d);margin:0 0 22px;letter-spacing:-.01em}
.page-head h1 em{font-style:italic;color:var(--accent)}
.page-head .lede{font-size:1.2rem;color:var(--ink-2);max-width:46ch;margin:0 auto}
.page-head .lede::after{content:"";display:block;width:56px;height:1px;background:var(--accent);margin:34px auto 0}
.ph-name{display:flex;align-items:center;justify-content:center;gap:14px;margin:0 0 16px;font:500 italic 1.15rem/1.2 var(--serif-d);letter-spacing:.04em;color:var(--accent)}
.ph-name::before,.ph-name::after{content:"";width:28px;height:1px;background:currentColor;opacity:.45}
.page-head .crumbs{font:500 .74rem/1 var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);margin:0 0 30px}
.crumbs a{color:var(--ink-2);text-decoration:none}
.crumbs a:hover{color:var(--accent)}
.crumbs span{margin:0 6px;opacity:.6}

/* capítulos */
.chapter{padding:96px 24px;border-top:1px solid var(--rule)}
.chapter.alt{background:var(--paper-2)}
.ch-head{max-width:var(--w);margin:0 auto 44px}
.ch-num{font:600 .75rem/1 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--accent)}
.ch-head h2{font:500 clamp(2.1rem,4vw,3.1rem)/1.05 var(--serif-d);margin:14px 0 0}
.prose{max-width:var(--w);margin:auto}
.prose p{margin:0 0 1.35em;text-wrap:pretty}
.prose .drop::first-letter{float:left;font:600 4.6rem/.8 var(--serif-d);color:var(--accent);margin:.08em .1em 0 0}
.prose em.t{font-style:italic}

/* llamadas a nota */
sup.fn{font:600 .68rem/0 var(--sans);vertical-align:super;margin-left:1px}
sup.fn a{text-decoration:none;padding:2px 5px;border-radius:3px;background:var(--accent-soft);color:var(--accent);transition:background .2s,color .2s}
sup.fn a:hover{background:var(--accent);color:#fff}
.band sup.fn a{background:#3a2a22;color:var(--night-accent)}
.band sup.fn a:hover{background:var(--night-accent);color:var(--night)}
.pop{position:absolute;z-index:40;max-width:min(420px,calc(100vw - 32px));background:var(--night);color:#efe7d6;font:400 .86rem/1.55 var(--serif);padding:16px 18px;border-radius:6px;box-shadow:0 18px 40px -12px rgba(0,0,0,.45);animation:pop .18s var(--ease)}
@keyframes pop{from{opacity:0;transform:translateY(-4px)}}
.pop a{color:#f3b9a6;overflow-wrap:anywhere}
.pop .n{font:600 .7rem var(--sans);letter-spacing:.14em;color:#c9bba2;display:block;margin-bottom:6px}

/* figuras */
.split{max-width:1080px;margin:56px auto;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split.rev figure{order:2}
.fig{margin:0}
.fig img{box-shadow:0 22px 40px -22px rgba(31,26,20,.55);background:#fff}
.fig figcaption{font:500 .78rem/1.4 var(--sans);color:var(--ink-2);margin-top:12px;letter-spacing:.02em}
.fig figcaption b{color:var(--ink)}
.covers{max-width:1080px;margin:56px auto;display:grid;grid-template-columns:repeat(3,1fr);gap:36px;align-items:end}
.covers .fig img{width:100%;height:auto}
.covers .fig.clip img{background:#fbf8f1;padding:8px}
.pull{font:500 italic clamp(1.6rem,2.6vw,2.1rem)/1.3 var(--serif-d);color:var(--accent);border-left:2px solid var(--accent);padding-left:24px;margin:0}

/* banda oscura (premios) */
.band{background:var(--night);color:var(--night-ink);padding:88px 24px 96px}
.band .prose{color:var(--night-ink)}
.palmares{max-width:1000px;margin:56px auto 0;padding:0;list-style:none;border-top:1px solid var(--night-rule)}
.palmares li{display:grid;grid-template-columns:150px 1fr auto;gap:32px;align-items:center;padding:30px 4px;border-bottom:1px solid var(--night-rule);transition:background .25s}
.palmares li:hover{background:#1e1a15}
.palmares .y{font:600 .9rem var(--sans);letter-spacing:.12em;color:var(--night-accent)}
.palmares h3{font:500 clamp(1.7rem,2.6vw,2.15rem)/1.15 var(--serif-d);color:#fff;margin:0 0 4px}
.palmares p{font-size:1.1rem;line-height:1.5;color:#b9ad98;margin:0}
.palmares li.win h3{color:#fff}
.tag{display:inline-block;font:600 .76rem var(--sans);letter-spacing:.14em;text-transform:uppercase;padding:7px 12px;border:1px solid #5d5245;color:var(--night-ink);white-space:nowrap}
.tag.win{border-color:var(--night-accent);color:var(--night-accent)}

/* crítica y estudio */
.facets{max-width:1080px;margin:auto;display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.facet{background:#fff;border:1px solid var(--rule);padding:28px 26px}
.facet .y{font:600 .72rem var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.facet h3{font:500 1.6rem/1.15 var(--serif-d);margin:10px 0 10px}
.facet p{font-size:.98rem;line-height:1.6;color:var(--ink-2);margin:0}

/* cronología */
.tl{max-width:var(--w);margin:0 auto;list-style:none;padding:0;border-left:1px solid var(--rule)}
.tl li{position:relative;padding:0 0 28px 28px}
.tl li::before{content:"";position:absolute;left:-5px;top:.55em;width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--paper-2)}
.tl .y{font:600 .76rem var(--sans);letter-spacing:.12em;color:var(--accent);display:block}
.tl p{margin:2px 0 0;font-size:1rem;line-height:1.6}

/* documentos */
.docs{max-width:1180px;margin:56px auto 0;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;align-items:start}
.doc{background:#fff;border:1px solid var(--rule);padding:14px;cursor:zoom-in;text-align:left;font:inherit;color:inherit;transition:transform .3s var(--ease),box-shadow .3s}
.doc:hover{transform:translateY(-3px);box-shadow:0 20px 36px -24px rgba(31,26,20,.5)}
.doc img{width:100%;height:auto}
.doc b{display:block;font:600 1.15rem/1.25 var(--serif-d);margin:14px 2px 4px}
.doc span{display:block;font:500 .74rem/1.4 var(--sans);color:var(--ink-2);margin:0 2px}

/* tres portadas de matemáticas */
.trio-in{display:flex;align-items:flex-end;justify-content:center;padding:10px 0 6px}
.trio-in img{width:33%;height:auto;box-shadow:0 18px 30px -18px rgba(31,26,20,.6);background:#fff;transition:transform .35s var(--ease)}
.trio-in img:nth-child(1){transform:rotate(-4deg) translateX(10%)}
.trio-in img:nth-child(2){position:relative;z-index:1;width:36%}
.trio-in img:nth-child(3){transform:rotate(4deg) translateX(-10%)}
.trio:hover .trio-in img:nth-child(1){transform:rotate(-6deg) translateX(4%)}
.trio:hover .trio-in img:nth-child(3){transform:rotate(6deg) translateX(-4%)}

/* bibliografía */
.books{max-width:1080px;margin:auto;display:grid;grid-template-columns:repeat(4,1fr);gap:44px 28px}
.book{display:flex;flex-direction:column}
.book .cover{position:relative;aspect-ratio:2/3;margin-bottom:16px;display:flex;align-items:flex-end;justify-content:center;transition:transform .35s var(--ease)}
.book:hover .cover{transform:translateY(-4px)}
.book .cover img{max-width:100%;max-height:100%;width:auto;height:auto;box-shadow:0 22px 34px -22px rgba(31,26,20,.6)}
.cover-t{width:100%;height:100%;box-shadow:0 22px 34px -22px rgba(31,26,20,.6);display:flex;flex-direction:column;justify-content:space-between;padding:18px 16px;background:var(--accent);color:#f6efe3;border-left:6px solid rgba(0,0,0,.18);text-align:center}
.cover-t[data-g="Novela"]{background:#2e3a34}
.cover-t[data-g="Ensayo"],.cover-t[data-g="Artículos"]{background:#3b3328}
.cover-t[data-g="Didáctica"]{background:#2b3446}
.cover-t span{font:600 .62rem var(--sans);letter-spacing:.18em;text-transform:uppercase;opacity:.75}
.cover-t b{font:500 italic 1.45rem/1.15 var(--serif-d)}
.cover-t i{font:500 .68rem var(--sans);letter-spacing:.12em;text-transform:uppercase;font-style:normal;opacity:.75}
.book .meta{font:600 .7rem var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.book h3{font:500 1.35rem/1.15 var(--serif-d);margin:6px 0 4px}
.book p{font-size:.88rem;line-height:1.5;color:var(--ink-2);margin:0 0 10px;flex:1}
.book a{font:600 .72rem var(--sans);letter-spacing:.08em;text-decoration:none;padding:6px 0}
.book a:hover{text-decoration:underline}

/* fuentes */
.notes{max-width:880px;margin:auto}
.note-group+.note-group{margin-top:64px}
.note-group h2{display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap;font:500 2rem/1.1 var(--serif-d);margin:0 0 12px;padding-bottom:12px;border-bottom:2px solid var(--ink)}
.note-group h2 a{font:600 .72rem var(--sans);letter-spacing:.12em;text-transform:uppercase;text-decoration:none}
.notes ol{padding-left:1.6em;margin:0}
.notes li{font-size:.95rem;line-height:1.65;color:var(--ink-2);padding:12px 0 12px 8px;border-bottom:1px solid var(--rule)}
.notes li::marker{font:600 .8rem var(--sans);color:var(--accent)}
.notes li:target{background:var(--accent-soft);animation:flash 1.6s ease}
@keyframes flash{from{background:#e9bfae}}
.notes a{overflow-wrap:anywhere}
.notes-page{border-top:0;padding-top:24px}

/* portada: tarjetas */
.sections{max-width:1180px;margin:56px auto 0;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule)}
.card{position:relative;background:var(--paper);padding:34px 30px 30px;text-decoration:none;color:var(--ink);display:flex;flex-direction:column;gap:10px;transition:background .25s}
.card:hover{background:#fff}
.card:first-child{grid-column:span 2}
.card .thumb{position:absolute;top:26px;right:26px;width:62px;height:auto;box-shadow:0 10px 18px -10px rgba(31,26,20,.6);transition:transform .35s var(--ease)}
.card:hover .thumb{transform:translateY(-3px)}
.card:has(.thumb){padding-right:108px}
.card h3{font:500 1.9rem/1.1 var(--serif-d);margin:0}
.card p{font-size:.98rem;line-height:1.6;color:var(--ink-2);margin:0;flex:1}
.card .go{font:600 .74rem var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.card:hover .go{text-decoration:underline;text-underline-offset:4px}

/* preguntas frecuentes */
.faq{max-width:1080px;margin:auto;display:grid;grid-template-columns:1fr 1fr;gap:0 56px}
.qa{padding:26px 0;border-top:1px solid var(--rule)}
.qa h3{font:500 1.55rem/1.2 var(--serif-d);margin:0 0 10px}
.qa p{font-size:1.02rem;line-height:1.7;color:var(--ink-2);margin:0;text-wrap:pretty}
.qa a{font:600 .74rem var(--sans);letter-spacing:.06em;white-space:nowrap;text-decoration:none}
.qa a:hover{text-decoration:underline}
@media (max-width:860px){.faq{grid-template-columns:1fr}}

/* cabecera de autor (biografía) */
.author-head{background:radial-gradient(ellipse 80% 100% at 70% 0%,var(--paper-2),var(--paper) 70%);border-bottom:1px solid var(--rule)}
.author-in{max-width:1080px;margin:auto;padding:64px 24px 72px;display:grid;grid-template-columns:minmax(0,400px) 1fr;gap:64px;align-items:center}
.author-head figure{margin:0 18px 18px 0;position:relative;isolation:isolate}
.author-head figure img{width:100%;height:auto;filter:sepia(.12) contrast(1.02)}
.author-head figure::before{content:"";position:absolute;inset:18px -18px -18px 18px;border:1px solid var(--accent);z-index:-1}
.author-head figcaption{font:500 .74rem/1.4 var(--sans);color:var(--ink-2);margin-top:12px}
.author-head .crumbs{font:500 .74rem/1 var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);margin:0 0 28px}
.author-head h1{font:500 clamp(2.8rem,5.6vw,4.8rem)/.98 var(--serif-d);margin:0 0 24px;letter-spacing:-.01em}
.author-head h1 em{font-style:italic;color:var(--accent)}
.author-head .lede{font-size:1.2rem;color:var(--ink-2);max-width:36ch;margin:0 0 30px}
.author-head dl{display:grid;grid-template-columns:auto 1fr;gap:10px 24px;margin:0;padding-top:24px;border-top:1px solid var(--rule);font-size:1rem}
.author-head dt{font:600 .72rem/1.9 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.author-head dd{margin:0;line-height:1.5}

/* páginas legales */
.legal h2{font:500 1.7rem/1.2 var(--serif-d);margin:2em 0 .5em}
.legal h2:first-child{margin-top:0}
.legal ul{padding-left:1.2em;margin:0 0 1.35em}
.legal li{margin-bottom:.4em}
.fill{background:#fff3c4;padding:0 4px;border-radius:2px;font-style:normal}
.updated{font:500 .8rem var(--sans);color:var(--ink-2);margin-top:3em}

/* pie profesional */
.site-footer{background:var(--night);color:#a89c88;font:400 .92rem/1.65 var(--serif)}
.f-grid{max-width:1180px;margin:auto;padding:80px 24px 56px;display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1fr;gap:48px}
.f-col h2{font:600 .72rem/1 var(--sans);letter-spacing:.18em;text-transform:uppercase;color:var(--night-accent);margin:6px 0 22px}
.f-col ul{list-style:none;margin:0;padding:0}
.f-col li{margin-bottom:6px}
.f-col a{color:var(--night-ink);text-decoration:none;display:inline-block;padding:3px 0;transition:color .2s}
.f-col a:hover{color:var(--night-accent)}
.f-col a[aria-current="page"]{color:var(--night-accent)}
.f-brand{display:block;font:500 1.9rem/1.05 var(--serif-d);color:#f3ece0;text-decoration:none;margin-bottom:6px}
.f-role{font:600 .7rem/1.5 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:#8a7e6b;margin:0 0 18px}
.f-about p{margin:0 0 14px;max-width:38ch}
.f-about .more{font:600 .74rem var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--night-accent)}
.f-books a{line-height:1.35}
.f-books small{display:block;font:500 .7rem var(--sans);letter-spacing:.08em;color:#8a7e6b}
.f-bottom{border-top:1px solid var(--night-rule)}
.f-bottom-in{max-width:1180px;margin:auto;padding:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px 24px;font:500 .76rem/1.5 var(--sans);letter-spacing:.03em;color:#8a7e6b}
.f-bottom a{color:#a89c88;text-decoration:none}
.f-bottom a:hover{color:var(--night-accent)}
.site-footer :focus-visible{outline-color:var(--night-accent)}
@media (max-width:980px){.f-grid{grid-template-columns:1fr 1fr;gap:44px 36px}}
@media (max-width:860px){.author-in{grid-template-columns:1fr;gap:40px;padding-top:40px}.author-head figure{max-width:420px}}
@media (max-width:560px){.f-grid{grid-template-columns:1fr;padding:60px 16px 40px}.f-bottom-in{padding:20px 16px;flex-direction:column}.author-in{padding:32px 16px 56px}}

/* aviso de cookies */
.cc-bar{position:fixed;left:16px;right:16px;bottom:16px;z-index:60;max-width:1080px;margin:auto;background:var(--night);color:var(--night-ink);border:1px solid var(--night-rule);border-radius:10px;box-shadow:0 24px 50px -18px rgba(0,0,0,.55);animation:ccIn .35s var(--ease)}
@keyframes ccIn{from{opacity:0;transform:translateY(16px)}}
.cc-in{display:flex;align-items:center;gap:28px;padding:20px 24px}
.cc-txt{margin:0;font:400 .95rem/1.6 var(--serif);flex:1}
.cc-txt b{color:#f3ece0}
.cc-txt a,.cc-dlg a{color:var(--night-accent)}
.cc-btns{display:flex;gap:10px;flex-wrap:wrap;flex-shrink:0}
.cc-b{min-height:44px;padding:0 20px;border-radius:6px;cursor:pointer;font:600 .78rem var(--sans);letter-spacing:.08em;text-transform:uppercase;transition:background .2s,color .2s,border-color .2s}
.cc-rej,.cc-acc{background:#f3ece0;color:var(--night);border:1px solid #f3ece0}
.cc-rej:hover,.cc-acc:hover{background:#fff;border-color:#fff}
.cc-cfg,.cc-save{background:transparent;color:#f3ece0;border:1px solid #6b6052}
.cc-cfg:hover,.cc-save:hover{border-color:#f3ece0}
.cc-bar :focus-visible,.cc-dlg :focus-visible{outline:2px solid var(--night-accent);outline-offset:3px}
.cc-dlg{max-width:min(560px,calc(100vw - 32px));max-height:calc(100vh - 32px);overflow:auto;padding:28px 28px 24px;border:1px solid var(--night-rule);border-radius:10px;background:var(--night);color:var(--night-ink);font:400 .95rem/1.6 var(--serif)}
.cc-dlg::backdrop{background:rgba(15,12,9,.6)}
.cc-dlg h2{font:500 1.8rem/1.1 var(--serif-d);color:#f3ece0;margin:0 0 10px}
.cc-dlg>p{margin:0 0 18px}
.cc-opt{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:16px 0;border-top:1px solid var(--night-rule)}
.cc-opt b{display:block;color:#f3ece0;font:600 .9rem/1.4 var(--sans);margin-bottom:4px}
.cc-opt span{font-size:.88rem;line-height:1.5;color:#b9ad98}
.cc-sw{display:flex;flex-direction:column;align-items:center;gap:6px;cursor:pointer;flex-shrink:0}
.cc-sw input{position:absolute;opacity:0;width:1px;height:1px}
.cc-sw i{width:46px;height:26px;border-radius:13px;background:#4a4136;position:relative;transition:background .2s}
.cc-sw i::after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#f3ece0;transition:transform .2s var(--ease)}
.cc-sw input:checked+i{background:#b5654f}
.cc-sw input:checked+i::after{transform:translateX(20px)}
.cc-sw input:disabled+i{opacity:.6;cursor:not-allowed}
.cc-sw input:focus-visible+i{outline:2px solid var(--night-accent);outline-offset:3px}
.cc-sw .cc-st{font:600 .62rem var(--sans);letter-spacing:.1em;text-transform:uppercase;color:#8a7e6b;white-space:nowrap}
.cc-dlg .cc-btns{margin-top:18px;padding-top:18px;border-top:1px solid var(--night-rule);justify-content:flex-end}
.cc-open{background:none;border:0;padding:3px 0;color:var(--night-ink);font:inherit;cursor:pointer;text-align:left}
.cc-open:hover{color:var(--night-accent)}
.cc-open.cc-inline{min-height:44px;padding:0 20px;border:1px solid var(--accent);border-radius:6px;color:var(--accent);font:600 .78rem var(--sans);letter-spacing:.08em;text-transform:uppercase}
.cc-open.cc-inline:hover{background:var(--accent);color:#fff}
@media (max-width:760px){
  .cc-in{flex-direction:column;align-items:stretch;gap:14px;padding:18px}
  .cc-btns{display:grid;grid-template-columns:1fr 1fr}
  .cc-bar .cc-cfg{grid-column:1 / -1;order:3}
  .cc-dlg .cc-btns{grid-template-columns:1fr}
  .cc-bar{left:10px;right:10px;bottom:10px}
}

/* visor de documentos */
#lb{border:0;padding:0;background:transparent;max-width:92vw;max-height:92vh}
#lb::backdrop{background:rgba(15,12,9,.88)}
#lb img{max-height:88vh;width:auto;margin:auto}
#lb button{position:fixed;top:14px;right:16px;width:48px;height:48px;background:none;border:0;color:#fff;font:500 2rem/1 var(--sans);cursor:pointer}

/* aparición suave: solo con JS activo, el contenido nunca queda oculto sin él */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

@media (max-width:900px){
  .hero{grid-template-columns:1fr;gap:48px;padding-top:40px}
  .hero figure{order:-1;max-width:520px}
  .split{grid-template-columns:1fr;gap:28px}
  .split.rev figure{order:0}
  .split .fig{max-width:380px}
  .covers,.docs{grid-template-columns:1fr 1fr;gap:20px}
  .books{grid-template-columns:repeat(3,1fr)}
  .facets{grid-template-columns:1fr}
  .sections{grid-template-columns:1fr 1fr}
  .card:first-child{grid-column:auto}
  .card:last-child{grid-column:span 2}
  .nav ul{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:var(--night);border-bottom:1px solid var(--night-rule);box-shadow:0 18px 30px -20px rgba(0,0,0,.5)}
  .nav ul.open{display:flex}
  .nav ul a{display:block;padding:16px 24px;font-size:.85rem}
  .nav ul a[aria-current="page"]{box-shadow:inset 3px 0 0 var(--night-accent);background:#1e1a15}
  .nav ul li+li a{border-top:1px solid var(--night-rule)}
  .menu-btn{display:flex}
}
@media (max-width:640px){
  .palmares li{grid-template-columns:1fr auto;gap:6px 16px;padding:20px 0}
  .palmares .y{grid-column:1 / -1}
  .palmares li>div{grid-column:1}
}
@media (max-width:560px){
  body{font-size:1.15rem}
  .chapter{padding:72px 16px}.hero{padding-left:16px;padding-right:16px}.band{padding:72px 16px}
  .hero figure{margin-right:10px}.hero figure::before{inset:10px -10px -10px 10px}
  .facts{grid-template-columns:repeat(3,1fr);gap:14px}.facts b{font-size:1.6rem}
  .page-head{padding:56px 16px 48px}
  .nav-in{padding:8px 16px}
  .docs,.sections{grid-template-columns:1fr}
  .card:last-child{grid-column:auto}
  .books{grid-template-columns:1fr 1fr;gap:36px 18px}
  .cover-t b{font-size:1.2rem}
}