:root{
  --paper:#fffdfa;
  --white:#ffffff;
  --warm:#f5f1ec;
  --warm-2:#ece6df;
  --ink:#181512;
  --muted:#6c645d;
  --line:#ddd6ce;
  --line-dark:#bbb1a7;
  --red:#d32618;
  --red-dark:#a91d12;
  --max:1200px;
  --serif:Georgia,"Times New Roman",Times,serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,Arial,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-width:320px;
  overflow-x:hidden;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body[data-language="en"] .lang-es{display:none!important}
body[data-language="es"] .lang-en{display:none!important}
a{color:inherit;text-decoration:none}
button,input,summary{font:inherit}
button{cursor:pointer}
img{display:block;max-width:100%;height:auto}
[hidden]{display:none!important}
.frame{width:min(var(--max),calc(100% - 48px));margin-inline:auto}
.skip-link{position:absolute;left:20px;top:-70px;z-index:1000;background:var(--ink);color:#fff;padding:10px 14px}
.skip-link:focus{top:16px}
.eyebrow,.format-label,.section-label{
  margin:0;
  color:var(--red);
  font-size:10px;
  font-weight:800;
  letter-spacing:.18em;
  line-height:1.3;
  text-transform:uppercase;
}
.button-outline{
  display:inline-flex;
  min-height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--ink);
  background:var(--white);
  color:var(--ink);
  padding:0 16px;
  font-family:var(--serif);
  font-size:15px;
}
.button-outline:hover{border-color:var(--red);color:var(--red)}

/* Navegación */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  border-bottom:1px solid rgba(221,214,206,.82);
  background:rgba(255,253,250,.95);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.nav{min-height:86px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.brand{display:inline-flex;align-items:center;flex:0 0 auto}
.brand img{width:176px;max-width:45vw}
.nav-links{display:flex;align-items:center;justify-content:flex-end;gap:19px;font-family:var(--serif);font-size:15px;line-height:1.2}
.nav-links>a{white-space:nowrap}
.nav-links>a:hover{color:var(--red)}
.menu-toggle{
  display:none;
  min-height:42px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line-dark);
  background:transparent;
  color:var(--ink);
  padding:0 14px;
  font-size:11px;
  font-weight:800;
  letter-spacing:.1em;
  text-transform:uppercase;
}
.lang-toggle,.cv-menu summary{
  display:inline-flex;
  min-height:36px;
  align-items:center;
  border:1px solid var(--line);
  background:var(--white);
  padding:0 11px;
  color:var(--ink);
  font-family:var(--sans);
  font-size:10px;
  font-weight:800;
  letter-spacing:.1em;
  list-style:none;
  text-transform:uppercase;
}
.cv-menu{position:relative;display:inline-flex}
.cv-menu summary{cursor:pointer}
.cv-menu summary::-webkit-details-marker{display:none}
.cv-menu summary::after{content:"↓";margin-left:7px}
.lang-toggle:hover,.cv-menu summary:hover,.cv-menu[open] summary{border-color:var(--red);color:var(--red)}
.cv-options{
  position:absolute;
  right:0;
  top:calc(100% + 10px);
  z-index:200;
  display:grid;
  width:min(360px,calc(100vw - 32px));
  gap:6px;
  border:1px solid var(--line);
  background:var(--paper);
  box-shadow:0 24px 60px rgba(24,21,18,.13);
  padding:8px;
}
.cv-options a{display:block;border:1px solid transparent;background:#fff;padding:13px 15px;white-space:normal}
.cv-options a:hover{border-color:var(--line);background:var(--warm);color:var(--ink)}
.cv-options strong{display:block;margin-bottom:5px;font-family:var(--serif);font-size:19px;font-weight:500;line-height:1.2}
.cv-options span{display:block;color:var(--muted);font-family:var(--sans);font-size:11px;line-height:1.45}

/* Encabezado editorial */
.breadcrumb{
  display:flex;
  align-items:center;
  gap:9px;
  padding-top:26px;
  color:var(--muted);
  font-size:11px;
  letter-spacing:.04em;
}
.breadcrumb a:hover{color:var(--red)}
.knowledge-intro{
  display:grid;
  grid-template-columns:minmax(0,1fr) 290px;
  gap:90px;
  align-items:end;
  padding:72px 0 76px;
}
.knowledge-intro-copy{max-width:810px}
.knowledge-intro .eyebrow{margin-bottom:24px}
.knowledge-intro h1{
  max-width:790px;
  margin:0;
  font-family:var(--serif);
  font-size:clamp(3.55rem,7vw,6.65rem);
  font-weight:500;
  letter-spacing:-.055em;
  line-height:.89;
}
.knowledge-lead{
  max-width:700px;
  margin:30px 0 0;
  color:var(--muted);
  font-size:17px;
  line-height:1.75;
}
.knowledge-summary{margin:0;border-bottom:1px solid var(--line)}
.knowledge-summary div{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:20px;
  border-top:1px solid var(--line);
  padding:15px 0;
}
.knowledge-summary dt{font-family:var(--serif);font-size:30px;line-height:1}
.knowledge-summary dd{margin:0;color:var(--muted);font-size:12px}

/* Búsqueda */
.knowledge-search-band{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--white);
}
.search-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:40px;
  align-items:end;
  padding-block:22px;
}
.search-field{display:grid;grid-template-columns:78px minmax(0,1fr);align-items:center;gap:16px}
.search-field>span{
  color:var(--red);
  font-size:10px;
  font-weight:800;
  letter-spacing:.17em;
  text-transform:uppercase;
}
.search-field input{
  width:100%;
  min-height:46px;
  border:0;
  border-bottom:1px solid var(--line-dark);
  border-radius:0;
  outline:0;
  background:transparent;
  color:var(--ink);
  padding:0 38px 0 0;
  font-family:var(--serif);
  font-size:20px;
}
.search-field input::placeholder{color:#9b938b;opacity:1}
.search-field input:focus{border-bottom-color:var(--red)}
.search-status{display:flex;align-items:center;justify-content:flex-end;gap:16px;min-height:46px}
.search-status p{margin:0;color:var(--muted);font-size:11px;white-space:nowrap}
.search-status button{
  border:0;
  border-bottom:1px solid var(--ink);
  background:transparent;
  color:var(--ink);
  padding:3px 0;
  font-size:11px;
}
.search-status button:hover{border-color:var(--red);color:var(--red)}

/* Catálogo */
.knowledge-catalog{
  display:grid;
  grid-template-columns:230px minmax(0,1fr);
  gap:72px;
  align-items:start;
  padding:72px 0 96px;
}
.topic-sidebar{position:sticky;top:116px}
.topic-sidebar-head{padding-bottom:18px}
.topic-sidebar-head .eyebrow{margin-bottom:12px}
.topic-sidebar h2,.catalog-toolbar h2{
  margin:0;
  font-family:var(--serif);
  font-size:29px;
  font-weight:500;
  letter-spacing:-.025em;
  line-height:1.1;
}
.topic-filters{border-bottom:1px solid var(--line)}
.topic-filter{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  width:100%;
  gap:12px;
  align-items:center;
  border:0;
  border-top:1px solid var(--line);
  background:transparent;
  color:var(--muted);
  padding:13px 0;
  text-align:left;
}
.topic-filter span{font-size:12px;line-height:1.35}
.topic-filter strong{
  min-width:24px;
  color:#918880;
  font-family:var(--serif);
  font-size:15px;
  font-weight:500;
  text-align:right;
}
.topic-filter:hover{color:var(--ink)}
.topic-filter.is-active{color:var(--red)}
.topic-filter.is-active strong{color:var(--red)}
.catalog-content{min-width:0}
.catalog-toolbar{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:30px;
  border-bottom:1px solid var(--ink);
  padding-bottom:22px;
}
.catalog-toolbar .eyebrow{margin-bottom:12px}
.type-filters{display:flex;align-items:center;justify-content:flex-end;gap:5px;overflow-x:auto;scrollbar-width:thin}
.type-filter{
  flex:0 0 auto;
  min-height:38px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--muted);
  padding:0 12px;
  font-size:11px;
  white-space:nowrap;
}
.type-filter span{margin-left:4px;color:#978f87}
.type-filter:hover{border-color:var(--ink);color:var(--ink)}
.type-filter.is-active{border-color:var(--ink);background:var(--ink);color:#fff}
.type-filter.is-active span{color:#c9c2bb}

/* Secciones de recursos */
.resource-section{padding:58px 0 22px}
.resource-section+.resource-section{margin-top:42px;border-top:1px solid var(--ink)}
.resource-section-head{
  display:grid;
  grid-template-columns:minmax(220px,.8fr) minmax(0,1.2fr);
  gap:46px;
  align-items:start;
  margin-bottom:28px;
}
.resource-section-head .format-label{margin-bottom:10px}
.resource-section-head h2{
  margin:0;
  font-family:var(--serif);
  font-size:clamp(2.25rem,4vw,3.4rem);
  font-weight:500;
  letter-spacing:-.035em;
  line-height:1;
}
.resource-section-head>p{max-width:570px;margin:0;color:var(--muted);font-size:13px;line-height:1.7}

/* Manuscritos: lista editorial */
.manuscript-list{border-top:1px solid var(--line)}
.manuscript-entry{
  display:grid;
  grid-template-columns:42px minmax(0,1fr) auto;
  gap:24px;
  align-items:start;
  border-bottom:1px solid var(--line);
  padding:28px 0 30px;
  transition:background-color .2s ease,padding .2s ease;
}
.manuscript-entry:hover{background:rgba(245,241,236,.55);padding-inline:12px}
.entry-number{padding-top:4px;color:#aaa198;font-family:var(--serif);font-size:13px}
.entry-copy{min-width:0}
.entry-taxonomy{display:flex;flex-wrap:wrap;gap:0;margin-bottom:10px}
.entry-taxonomy span{
  color:var(--muted);
  font-size:9px;
  font-weight:800;
  letter-spacing:.13em;
  line-height:1.4;
  text-transform:uppercase;
}
.entry-taxonomy span+span::before{content:"·";margin:0 7px;color:var(--line-dark)}
.entry-taxonomy span:first-child{color:var(--red)}
.entry-copy h3,.presentation-copy h3{
  margin:0;
  font-family:var(--serif);
  font-size:clamp(1.55rem,2.7vw,2.25rem);
  font-weight:500;
  letter-spacing:-.025em;
  line-height:1.08;
}
.entry-copy h3 a:hover,.presentation-copy h3 a:hover{color:var(--red)}
.entry-copy>p,.presentation-copy>p{
  display:-webkit-box;
  max-width:690px;
  margin:12px 0 0;
  overflow:hidden;
  color:var(--muted);
  font-size:13px;
  line-height:1.67;
  -webkit-box-orient:vertical;
  -webkit-line-clamp:2;
}
.entry-metadata{display:flex;flex-wrap:wrap;gap:0;margin-top:15px;color:#8a8179;font-size:10px}
.entry-metadata span+span::before{content:"/";margin:0 8px;color:#c5bdb5}
.entry-actions{
  display:flex;
  min-width:86px;
  flex-direction:column;
  align-items:flex-end;
  gap:8px;
  padding-top:24px;
}
.entry-primary-link,.entry-secondary-link,.presentation-link{
  display:inline-flex;
  min-height:34px;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-bottom:1px solid var(--ink);
  color:var(--ink);
  font-size:11px;
  font-weight:700;
}
.entry-primary-link:hover,.entry-secondary-link:hover,.presentation-link:hover{border-color:var(--red);color:var(--red)}
.entry-secondary-link{border-bottom-color:var(--line-dark);color:var(--muted)}

/* Presentaciones: recurso visual diferenciado */
.presentation-list{display:grid;gap:12px}
.presentation-entry{
  display:grid;
  grid-template-columns:60px minmax(0,1fr) auto;
  gap:22px;
  align-items:start;
  border:1px solid var(--line);
  background:var(--warm);
  padding:24px;
  transition:border-color .2s ease,transform .2s ease,background-color .2s ease;
}
.presentation-entry:hover{border-color:var(--red);background:#f8f4ef;transform:translateY(-1px)}
.presentation-marker{
  position:relative;
  display:flex;
  width:54px;
  height:42px;
  align-items:flex-end;
  border:1px solid var(--red);
  color:var(--red);
  padding:5px;
}
.presentation-marker::before{
  position:absolute;
  top:5px;
  right:5px;
  width:15px;
  height:1px;
  background:var(--red);
  box-shadow:0 5px 0 rgba(211,38,24,.55),0 10px 0 rgba(211,38,24,.32);
  content:"";
}
.presentation-marker span{font-size:8px;font-weight:900;letter-spacing:.1em}
.presentation-copy h3{font-size:clamp(1.4rem,2.3vw,1.95rem)}
.presentation-link{align-self:center;min-width:62px}

/* Estados y cierre */
.empty-state{
  border-top:1px solid var(--ink);
  border-bottom:1px solid var(--line);
  padding:54px 0;
}
.empty-state .format-label{margin-bottom:14px}
.empty-state h2{max-width:620px;margin:0;font-family:var(--serif);font-size:34px;font-weight:500;line-height:1.12}
.empty-state>p:not(.format-label){margin:13px 0 24px;color:var(--muted)}
.empty-state button{
  min-height:40px;
  border:1px solid var(--ink);
  background:transparent;
  color:var(--ink);
  padding:0 15px;
  font-size:11px;
}
.empty-state button:hover{background:var(--ink);color:#fff}
.knowledge-closing{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  border-top:1px solid var(--ink);
  padding:34px 0 88px;
}
.knowledge-closing p{margin:0;color:var(--muted);font-family:var(--serif);font-size:18px}
.knowledge-closing a{border-bottom:1px solid var(--ink);font-size:12px;font-weight:700}
.knowledge-closing a:hover{border-color:var(--red);color:var(--red)}

/* Pie de página */
.site-footer{border-top:1px solid var(--line);background:var(--ink);color:#fff;padding:28px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.footer-brand{display:flex;align-items:center;gap:14px;font-size:11px;color:#d7d1cb}
.footer-brand img{width:108px;filter:brightness(0) invert(1)}
.footer-socials{display:flex;align-items:center;justify-content:flex-end;gap:15px;flex-wrap:wrap}
.footer-socials a{color:#d7d1cb;font-size:11px}
.footer-socials a:hover{color:#fff;text-decoration:underline}

/* Accesibilidad */
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible{
  outline:2px solid var(--red);
  outline-offset:3px;
}

@media (min-width:1051px){
  .nav-links{display:flex!important}
}

@media (max-width:1050px){
  .site-header{position:sticky}
  .nav{
    display:grid;
    min-height:72px;
    grid-template-columns:minmax(0,1fr) auto;
    gap:12px;
    padding:13px 0;
  }
  .brand img{width:158px}
  .menu-toggle{display:inline-flex}
  .nav-links{
    display:none;
    grid-column:1/-1;
    width:100%;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    border-top:1px solid var(--line);
    padding:7px 0 4px;
    background:var(--paper);
    font-size:17px;
  }
  .nav-links.is-open{display:flex}
  .nav-links>a,.nav-links .cv-menu summary,.nav-links .lang-toggle{
    display:flex;
    width:100%;
    min-height:43px;
    align-items:center;
    justify-content:flex-start;
    border:0;
    border-bottom:1px solid rgba(221,214,206,.65);
    background:transparent;
    padding:10px 0;
  }
  .nav-links .cv-menu{display:block;width:100%}
  .nav-links .cv-options{position:static;width:100%;margin:7px 0;border:1px solid var(--line);box-shadow:none}
  .knowledge-intro{grid-template-columns:1fr;gap:44px}
  .knowledge-summary{display:grid;grid-template-columns:repeat(3,1fr)}
  .knowledge-summary div{display:block;border-bottom:0;padding:14px 16px 14px 0}
  .knowledge-summary div+div{border-left:1px solid var(--line);padding-left:16px}
  .knowledge-summary dd{margin-top:6px}
  .knowledge-catalog{grid-template-columns:1fr;gap:48px}
  .topic-sidebar{position:static}
  .topic-sidebar-head{display:flex;align-items:end;justify-content:space-between;gap:20px}
  .topic-filters{
    display:flex;
    overflow-x:auto;
    gap:7px;
    border:0;
    padding-bottom:8px;
    scrollbar-width:thin;
  }
  .topic-filter{
    display:inline-flex;
    width:auto;
    min-height:39px;
    flex:0 0 auto;
    gap:9px;
    border:1px solid var(--line);
    padding:0 12px;
  }
  .topic-filter.is-active{border-color:var(--red)}
}

@media (max-width:760px){
  .frame{width:min(var(--max),calc(100% - 30px))}
  .breadcrumb{padding-top:18px}
  .knowledge-intro{gap:36px;padding:50px 0 52px}
  .knowledge-intro h1{font-size:clamp(3.05rem,14vw,5rem);line-height:.93}
  .knowledge-lead{margin-top:24px;font-size:15px}
  .knowledge-summary dt{font-size:25px}
  .knowledge-summary dd{font-size:10px;line-height:1.35}
  .search-layout{grid-template-columns:1fr;gap:12px;padding-block:18px}
  .search-field{grid-template-columns:1fr;gap:5px}
  .search-field input{min-height:44px;font-size:18px}
  .search-status{min-height:30px;justify-content:space-between}
  .knowledge-catalog{gap:36px;padding:48px 0 68px}
  .topic-sidebar-head{display:block}
  .topic-sidebar-head .eyebrow{margin-bottom:10px}
  .catalog-toolbar{display:grid;gap:20px;align-items:start}
  .type-filters{justify-content:flex-start;margin-right:-15px;padding:0 15px 7px 0}
  .resource-section{padding-top:44px}
  .resource-section+.resource-section{margin-top:30px}
  .resource-section-head{grid-template-columns:1fr;gap:14px}
  .resource-section-head>p{font-size:12px}
  .manuscript-entry{grid-template-columns:30px minmax(0,1fr);gap:14px;padding:24px 0}
  .manuscript-entry:hover{padding-inline:0;background:transparent}
  .entry-actions{
    grid-column:2;
    min-width:0;
    flex-direction:row;
    align-items:center;
    justify-content:flex-start;
    padding-top:0;
  }
  .entry-copy h3{font-size:clamp(1.65rem,8vw,2.15rem)}
  .entry-copy>p{-webkit-line-clamp:3}
  .presentation-entry{grid-template-columns:54px minmax(0,1fr);gap:16px;padding:20px}
  .presentation-link{grid-column:2;justify-self:start}
  .knowledge-closing{align-items:flex-start;flex-direction:column;padding-bottom:60px}
  .footer-inner{align-items:flex-start;flex-direction:column}
  .footer-socials{justify-content:flex-start}
}

@media (max-width:480px){
  .knowledge-summary{grid-template-columns:1fr}
  .knowledge-summary div{display:flex;border-top:1px solid var(--line);padding:12px 0}
  .knowledge-summary div+div{border-left:0;padding-left:0}
  .knowledge-summary dd{margin-top:0}
  .manuscript-entry{grid-template-columns:1fr}
  .entry-number{display:none}
  .entry-actions{grid-column:1}
  .presentation-entry{grid-template-columns:1fr}
  .presentation-marker{width:48px;height:38px}
  .presentation-link{grid-column:1}
  .entry-metadata{line-height:1.7}
  .footer-socials{gap:11px 14px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    scroll-behavior:auto!important;
    transition-duration:.01ms!important;
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
  }
}