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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.section-card{transition:none}}
.material-filters{display:flex;flex-wrap:wrap;gap:16px;align-items:end;padding:24px;background:white;border:1px solid var(--line);margin-bottom:18px}.material-filters label{display:grid;gap:8px;font-size:13px;flex:1;min-width:200px}.material-filters select{font:inherit;padding:12px;border:1px solid var(--line);background:var(--paper);border-radius:3px;max-width:100%}#filterSummary{margin-bottom:28px;font-size:14px;color:var(--jade)}select:focus-visible{outline:3px solid #b27623;outline-offset:3px}

/* Identidad visual: azul y naranja observados en el sitio de Filológicas.
   Fuente: https://www.iifilologicas.unam.mx/index.php?page=imagen-institucional */
:root{--paper:#faf9f6;--ink:#222b45;--muted:#5c6271;--blue:#252e5d;--orange:#cd7035;--orange-ink:#99451f;--wine:var(--blue);--jade:var(--orange-ink);--line:#dce0e8}
.site-header{background:#fff;border-top:5px solid var(--blue)}
.institutional-header{display:flex;justify-content:space-between;align-items:center;gap:24px;padding-block:20px;border-bottom:1px solid var(--line)}
.institution{display:flex;align-items:center;gap:18px;text-decoration:none;color:var(--blue);font-size:13px;line-height:1.45;font-weight:500}
.institution img{display:block;object-fit:contain;width:auto;height:70px}.filologicas-institution{text-align:right}.filologicas-institution img{height:66px}
.masthead{padding-block:18px}.brand{font-size:30px}.brand span{letter-spacing:.11em}.masthead-note{font-size:11px;letter-spacing:.04em}
.site-navigation{background:#f4f5f8;border-top:1px solid #edf0f5}.nav-links{gap:20px}.nav-links a{padding-block:15px;font-weight:500}.nav-links a:hover,.nav-links a[aria-current]{border-bottom-color:var(--orange)}
.hero{background:linear-gradient(115deg,#172044,#252e5d 70%,#313d70)}.hero:after{width:600px;height:600px;right:-240px;top:-130px;box-shadow:0 0 0 90px #ffffff03,0 0 0 180px #ffffff02}
.hero-content{padding-top:58px}.hero .eyebrow{color:#edc5ab;letter-spacing:.15em}.hero-layout{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(280px,1fr);gap:70px;align-items:center}.hero h1{font-size:clamp(44px,5vw,70px);max-width:780px;line-height:1.08}.hero h1 em{color:#f4c5a6}.hero p{font-size:17px;color:#dce0ef;max-width:570px}.hero-actions{margin-top:28px}.hero .button-light{background:#f0c7a9;color:#20284d;border-color:#f0c7a9}.button{padding:14px 22px;border-radius:5px}.hero-bottom{margin-top:45px;color:#b8c1dc}.hero-editorial{background:#f6f0e5;color:var(--blue);padding:32px;position:relative;box-shadow:12px 12px 0 #101a3b55;border-top:5px solid var(--orange);transform:rotate(2deg)}.editorial-label{font-size:10px;text-transform:uppercase;letter-spacing:.16em;color:#675341}.hero .editorial-title{font-family:var(--serif);font-size:clamp(30px,3vw,44px);line-height:1.15;color:var(--blue);margin-top:28px}.editorial-title em{color:var(--orange-ink)}.editorial-languages{display:grid;grid-template-columns:1fr 1fr;gap:9px 18px;margin-top:25px;padding-top:20px;border-top:1px solid #d8cdbf;font-size:12px;color:#605e61}.editorial-foot{display:block;margin-top:24px;font-size:9px;text-transform:uppercase;letter-spacing:.1em;color:#746654}
.section-heading .eyebrow{color:var(--orange-ink)}.section-card{border-radius:7px;padding:30px;box-shadow:0 4px 16px #252e5d04;position:relative;overflow:hidden}.section-card:before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--blue);opacity:.16}.section-card:hover{border-color:#b4bbd1;box-shadow:0 12px 26px #252e5d0d}.section-card:hover:before{background:var(--orange);opacity:1}.card-number{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:#f7eee5;color:var(--orange-ink);letter-spacing:0}.section-card h3{font-size:26px}.card-link{border-top:1px solid #edf0f5;padding-top:17px;font-size:12px}
.feature-band{background:#eceef5;color:var(--blue);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.feature-band .eyebrow{color:var(--orange-ink)}.feature-band p{color:var(--muted)}.feature-band .button{background:var(--blue);color:white}.language-tags span{border-color:#ccd1e1;background:#fff;color:var(--blue);border-radius:4px;padding:6px 14px}
.page-hero{background:linear-gradient(100deg,#edf0f7,#f8f5ef);border-bottom:1px solid var(--line)}.page-hero .eyebrow{color:var(--orange-ink)}.language-card{border-radius:6px}.language-card .card-number{margin-bottom:20px}.theme-card{border-color:var(--orange)}.material-filters{border-radius:7px;box-shadow:0 5px 18px #252e5d05}.poster-card,.audio-card{border-radius:7px;overflow:hidden}.section-soft{background:#f0f2f6}.empty-state{background:#f5f6f9;border-color:#bcc4d7;border-radius:6px}.status{background:#e9edf5;color:var(--blue);border-radius:3px}.site-footer{background:#172044;color:white;border-top:4px solid var(--orange)}.site-footer .brand{color:white}.site-footer p,.site-footer .admin-link{color:#c5cce0}
a:focus-visible,button:focus-visible,select:focus-visible{outline-color:var(--orange-ink)}.menu-toggle{border-color:#d1d6e3;background:#f4f5f8}.button-dark:hover{background:#384578}
@media(max-width:1100px){.hero-layout{gap:35px}.hero-editorial{padding:25px}.nav-links{gap:14px}}
@media(max-width:999px){.hero-layout{grid-template-columns:1fr}.hero-editorial{max-width:480px;width:100%;transform:none}.hero-content{padding-top:40px}.hero h1{font-size:clamp(44px,7vw,68px)}.institution{font-size:11px;gap:12px}.institution img{height:58px}.filologicas-institution img{height:55px}}
@media(max-width:600px){.institutional-header{gap:18px;padding-block:15px}.institution{gap:8px;font-size:9px}.institution img{height:49px}.filologicas-institution img{height:43px}.filologicas-institution span{max-width:120px}.masthead{padding-block:15px}.hero-layout{gap:32px}.hero-editorial{padding:24px;box-shadow:6px 6px 0 #101a3b55}.hero h1{font-size:43px}.hero .editorial-title{font-size:34px;margin-top:18px}.hero .eyebrow{font-size:9px;line-height:1.7}.hero-bottom{font-size:9px}.section-card{padding:25px}.feature-band{padding-block:40px}.material-filters{padding:18px}.material-filters label{min-width:0;width:100%;flex-basis:100%}}

/* Cambio suave de página, con encabezado estable en navegadores compatibles. */
@view-transition{navigation:auto}
.site-header{view-transition-name:site-header}
::view-transition-old(root){animation:page-fade-out 140ms ease-out both}
::view-transition-new(root){animation:page-fade-in 240ms ease-out both}
::view-transition-old(site-header),::view-transition-new(site-header){animation:none;mix-blend-mode:normal}
.page-enter{animation:content-enter 240ms ease-out both}
.page-leaving{animation:page-fade-out 120ms ease-out both}
@keyframes page-fade-out{from{opacity:1}to{opacity:0}}
@keyframes page-fade-in{from{opacity:0}to{opacity:1}}
@keyframes content-enter{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
@media(prefers-reduced-motion:reduce){
  @view-transition{navigation:none}
  .page-enter,.page-leaving{animation:none}
  ::view-transition-group(*),::view-transition-old(*),::view-transition-new(*){animation:none}
}