/* ===========================================================================
   AcademiaCAE — Blog (índice + artículo). Hoja propia (solo carga en el blog).
   Clases con nombres propios; reutiliza tokens de cae.css. Tema oscuro heredado.
   =========================================================================== */
:root{ --ok:#5BBE8A; }

/* =================== ÍNDICE =================== */
.blogidx,.blogpost{max-width:var(--wrap);margin:0 auto}
.blogidx__head{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;padding:8px 0 26px;flex-wrap:wrap}
.blogidx__head h1{font-family:var(--font-d);font-weight:700;font-size:clamp(2rem,4vw,2.7rem);margin:4px 0 6px}
.nl-link{display:inline-flex;align-items:center;gap:.6em;margin-top:12px;font-family:var(--font-d);font-weight:600;font-size:.82rem;color:var(--gold-bright)}
.nl-link svg{width:15px;height:15px}
.nl-link:hover{color:var(--gold)}
.bsearch{display:flex;align-items:center;gap:10px;background:var(--indigo-2);border:1px solid var(--line);border-radius:999px;padding:11px 18px;min-width:300px;transition:border-color .15s}
.bsearch:focus-within{border-color:var(--gold)}
.bsearch svg{width:16px;height:16px;stroke:var(--muted);fill:none;stroke-width:2;flex:none}
.bsearch input{flex:1;background:none;border:none;color:var(--text);font:inherit;font-size:.9rem;outline:none}
.bsearch input::placeholder{color:var(--muted)}
.bsearch .clear{display:none;color:var(--muted)}
.bsearch.has-q .clear{display:block}
@media(max-width:680px){.bsearch{min-width:100%}}
.blogidx__metarow{display:flex;justify-content:space-between;padding-bottom:16px}
.blogidx__metarow .mono{font-size:.68rem;color:var(--muted)}

/* destacado */
.featured{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:linear-gradient(135deg,var(--indigo-2),var(--indigo-deep));margin-bottom:40px;transition:border-color .2s,transform .2s}
.featured:hover{border-color:rgba(187,146,38,.55);transform:translateY(-3px)}
.featured.hide{display:none}
.featured__media{position:relative;min-height:280px;background:var(--indigo-deep)}
.featured__media img,.featured__media svg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.featured__new{position:absolute;top:16px;left:16px;font-family:var(--font-d);font-weight:600;font-size:.6rem;letter-spacing:.16em;text-transform:uppercase;background:var(--gold);color:#fff;padding:.55em 1.1em;border-radius:999px;z-index:1}
.featured__body{padding:36px 38px;display:flex;flex-direction:column;gap:13px}
.tags{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.tag{font-family:var(--font-m);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gold-bright)}
.tag::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--gold-bright);margin-right:.7em;vertical-align:middle}
.featured__body time,.featured__body .rt,.post time,.post .rt{font-family:var(--font-m);font-size:.66rem;color:var(--muted)}
.featured__body h2{font-family:var(--font-d);font-weight:600;font-size:clamp(1.3rem,2.4vw,1.8rem);line-height:1.25;color:#fff}
.featured__body p{color:var(--muted);font-size:.94rem}
.readlink{margin-top:auto;font-family:var(--font-d);font-weight:600;font-size:.84rem;color:var(--gold-bright);display:inline-flex;align-items:center;gap:.5em;transition:gap .2s}
.featured:hover .readlink{gap:.85em}
@media(max-width:860px){.featured{grid-template-columns:1fr}.featured__media{min-height:190px}}

/* grid de entradas */
.bgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
@media(max-width:980px){.bgrid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.bgrid{grid-template-columns:1fr}}
.post{background:var(--indigo-3);padding:28px 26px;display:flex;flex-direction:column;gap:11px;transition:background .2s;position:relative}
.post::after{content:"";position:absolute;left:26px;right:26px;top:0;height:2px;background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.post:hover{background:var(--indigo-2)}
.post:hover::after{transform:scaleX(1)}
.post.hide{display:none}
.post__top{display:flex;justify-content:space-between;gap:12px;align-items:baseline}
.post h3{font-family:var(--font-d);font-weight:600;font-size:1.02rem;line-height:1.35;color:#fff}
.post p{font-size:.85rem;color:var(--muted);flex:1}
.post__foot{display:flex;justify-content:space-between;align-items:center}
.post .go{font-family:var(--font-d);font-weight:600;font-size:.78rem;color:var(--muted);transition:color .15s}
.post:hover .go{color:var(--gold-bright)}
@media (prefers-reduced-motion:reduce){.featured,.featured:hover,.post::after{transition:none;transform:none}}

.blog-empty{display:none;text-align:center;padding:60px 20px;color:var(--muted)}
.blog-empty.show{display:block}
.blog-empty b{display:block;font-family:var(--font-d);font-weight:600;font-size:1.1rem;color:#fff;margin-bottom:6px}
.blog-empty button{margin-top:14px;font-family:var(--font-d);font-weight:600;font-size:.8rem;color:var(--gold-bright)}

/* newsletter */
.newsletter{padding:44px 0 70px}
.nl{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;background:linear-gradient(135deg,var(--indigo-2),var(--indigo-deep));border:1px solid var(--line);border-radius:var(--r);padding:42px 44px;position:relative;overflow:hidden}
.nl::after{content:"";position:absolute;right:-80px;bottom:-80px;width:300px;height:300px;background:radial-gradient(circle,rgba(187,146,38,.13),transparent 70%);pointer-events:none}
.nl__copy h2{font-family:var(--font-d);font-weight:600;font-size:clamp(1.3rem,2.4vw,1.7rem);color:#fff;margin:8px 0 10px;line-height:1.25}
.nl__copy p{color:var(--muted);font-size:.92rem;max-width:34em}
.nl__copy .mono{display:block;margin-top:16px;font-size:.64rem;color:var(--muted)}
.nl__form{position:relative;z-index:1;display:flex;flex-direction:column;gap:12px}
.nl__row{display:grid;grid-template-columns:1fr 1.3fr;gap:12px}
.nl__form input[type=text],.nl__form input[type=email]{width:100%;background:var(--indigo-deep);border:1px solid var(--line);border-radius:10px;padding:12px 14px;color:var(--text);font:inherit;font-size:.9rem}
.nl__form input:focus{outline:none;border-color:var(--gold)}
.nl__form input.err{border-color:#D96A5B}
.check{display:flex;gap:11px;align-items:flex-start;font-size:.78rem;color:var(--muted);cursor:pointer;line-height:1.5}
.check input{appearance:none;flex:none;width:17px;height:17px;margin-top:2px;border:1.5px solid var(--line-strong);border-radius:5px;cursor:pointer;display:grid;place-items:center;transition:background .15s,border-color .15s}
.check input:checked{background:var(--gold);border-color:var(--gold)}
.check input:checked::after{content:"";width:9px;height:5px;border:2px solid #fff;border-top:none;border-right:none;transform:rotate(-45deg) translateY(-1px)}
.check input.err{border-color:#D96A5B}
.check a{color:var(--gold-bright);text-decoration:underline}
.nl__foot{display:flex;align-items:center;gap:16px;margin-top:4px;flex-wrap:wrap}
.nl__btn{font-family:var(--font-d);font-weight:600;font-size:.8rem;padding:.8em 1.8em;border-radius:10px;background:var(--gold);color:#fff;transition:background .15s}
.nl__btn:hover{background:var(--gold-bright)}
.nl__msg{font-family:var(--font-m);font-size:.66rem;color:#D96A5B;display:none}
.nl__msg.show{display:block}
.nl__ok{display:none;flex-direction:column;align-items:flex-start;gap:12px;justify-content:center}
.nl__ok.show{display:flex}
.nl__ok .tick{width:50px;height:50px;border-radius:50%;background:rgba(91,190,138,.14);border:1.5px solid var(--ok);display:grid;place-items:center}
.nl__ok .tick svg{width:22px;height:22px;stroke:var(--ok);fill:none}
.nl__ok b{font-family:var(--font-d);font-weight:600;font-size:1.05rem;color:#fff}
.nl__ok p{font-size:.86rem;color:var(--muted);max-width:34em}
@media(max-width:880px){.nl{grid-template-columns:1fr;padding:32px 26px}.nl__row{grid-template-columns:1fr}}

/* =================== ARTÍCULO =================== */
.readbar{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--gold-deep),var(--gold-bright));z-index:80;transition:width .1s linear}
.crumb{font-family:var(--font-m);font-size:.68rem;color:var(--muted);display:flex;gap:8px;flex-wrap:wrap;padding:6px 0 14px}
.crumb a:hover{color:var(--gold-bright)}
.ahead{max-width:760px;padding:6px 0 18px}
.ahead__meta{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.ahead__meta time,.ahead__meta span:not(.tag){font-family:var(--font-m);font-size:.66rem;color:var(--muted)}
.ahead h1{font-family:var(--font-d);font-weight:700;font-size:clamp(1.8rem,4vw,2.6rem);line-height:1.18;color:#fff}
.ahead .lead{color:var(--muted);font-size:1.05rem;margin-top:14px;max-width:42em}
.byline{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0 22px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.who{display:flex;align-items:center;gap:12px}
.avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(140deg,var(--gold-deep),var(--gold-bright));display:grid;place-items:center;font-family:var(--font-d);font-weight:700;font-size:.95rem;color:#fff;flex:none}
.who b{font-family:var(--font-d);font-weight:600;font-size:.9rem;color:#fff;display:block}
.who small{font-size:.74rem;color:var(--muted)}
.share{display:flex;gap:8px}
.iconbtn{width:34px;height:34px;border-radius:9px;border:1px solid var(--line-strong);display:grid;place-items:center;transition:border-color .15s,background .15s}
.iconbtn svg{width:16px;height:16px;fill:var(--muted)}
.iconbtn:hover{border-color:var(--gold);background:rgba(187,146,38,.1)}
.iconbtn:hover svg{fill:var(--gold-bright)}

.blayout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:44px;padding:26px 0 40px;align-items:start}
@media(max-width:980px){.blayout{grid-template-columns:1fr}.toc{display:none}}
.toc{position:sticky;top:24px}
.toc h2{font-family:var(--font-m);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.toc ol{list-style:none;display:flex;flex-direction:column;gap:9px;border-left:1px solid var(--line);padding-left:16px}
.toc a{font-size:.82rem;color:var(--muted);transition:color .15s}
.toc a:hover,.toc a.active{color:var(--gold-bright)}

/* cuerpo (prose) */
.prose{max-width:760px;font-size:1.02rem;line-height:1.75;color:#D8DBE8}
.prose>*+*{margin-top:1.15rem}
.prose h2{font-family:var(--font-d);font-weight:600;font-size:1.45rem;color:#fff;margin-top:3.2rem;scroll-margin-top:80px}
.prose h3{font-family:var(--font-d);font-weight:600;font-size:1.15rem;color:#fff;margin-top:2.4rem;scroll-margin-top:80px}
.prose p{color:#CBCFDE}
.prose strong{color:#fff}
.prose a{color:var(--gold-bright);text-decoration:underline;text-underline-offset:2px}
.prose ul,.prose ol{padding-left:1.4rem}
.prose li+li{margin-top:.5rem}
.prose code{font-family:var(--font-code);font-size:.85em;background:var(--indigo-2);padding:.12em .45em;border-radius:5px;color:var(--gold-bright)}
.prose-quote{border-left:3px solid var(--gold);background:var(--indigo-2);padding:18px 22px;border-radius:0 12px 12px 0;font-size:1.08rem;color:#fff;font-style:italic}
.prose-quote small{display:block;margin-top:10px;font-style:normal;font-family:var(--font-m);font-size:.7rem;color:var(--muted)}
.prose-code{background:var(--indigo-deep);border:1px solid var(--line);border-radius:12px;padding:18px 20px;overflow-x:auto}
.prose-code code{background:none;padding:0;color:#D8DBE8;font-size:.85rem;line-height:1.6}
.prose-figure{margin:1.6rem 0}

/* ===== Jerarquía de aire del artículo =====
   El salto vertical crece con el cambio de contexto: dentro de una misma idea
   (párrafo→párrafo) es el mínimo; alrededor de un elemento visual, medio; y al abrir
   sección nueva, el máximo. Los títulos van pegados a lo que titulan, no flotando a
   medio camino entre dos bloques. */
.prose>.prose-figure,.prose>.lesson-embed,.prose>.prose-code,.prose>.prose-quote{margin-bottom:0}
/* antes de una imagen, vídeo, código o cita */
.prose>*+.prose-figure,.prose>*+.lesson-embed,
.prose>*+.prose-code,.prose>*+.prose-quote{margin-top:2.1rem}
/* después de ellos, al volver al texto */
.prose>.prose-figure+*,.prose>.lesson-embed+*,
.prose>.prose-code+*,.prose>.prose-quote+*{margin-top:1.7rem}
/* cambio de sección tras un visual: el salto mayor manda */
.prose>.prose-figure+h2,.prose>.lesson-embed+h2,
.prose>.prose-code+h2,.prose>.prose-quote+h2{margin-top:3.4rem}
.prose>.prose-figure+h3,.prose>.lesson-embed+h3,
.prose>.prose-code+h3,.prose>.prose-quote+h3{margin-top:2.6rem}
/* el título y lo que titula, juntos */
.prose>h2+*,.prose>h3+*,.prose>h4+*{margin-top:.85rem}
.prose>h2+.prose-figure,.prose>h3+.prose-figure,
.prose>h2+.lesson-embed,.prose>h3+.lesson-embed{margin-top:1.25rem}
/* `height:auto` es obligatorio: Wagtail emite width/height reales en el <img>, y con
   `width:100%` a secas el navegador conserva ESA altura y deforma la imagen. Las figuras
   del cuerpo respetan su proporción original; solo se ajustan al ancho del artículo. */
.prose-figure img{width:100%;height:auto;border-radius:14px;border:1px solid var(--line)}
.prose-figure figcaption{margin-top:10px;font-family:var(--font-m);font-size:.68rem;color:var(--muted);text-align:center}
/* Portada del artículo: marco fijo 2:1 para que TODOS los artículos abran igual, venga
   la imagen en la proporción que venga. Se recorta (cover), nunca se estira. */
.hero-cover{margin:0 0 1.8rem;aspect-ratio:2/1;overflow:hidden;border-radius:16px;border:1px solid var(--line)}
.hero-cover img{width:100%;height:100%;object-fit:cover;object-position:center;display:block}
@media(max-width:680px){.hero-cover{aspect-ratio:16/9}}

/* CTA de curso embebido */
.cta-inline{display:flex;align-items:center;gap:18px;background:linear-gradient(135deg,var(--indigo-2),var(--indigo-deep));border:1px solid rgba(187,146,38,.4);border-radius:var(--r);padding:20px 22px;margin:1.8rem 0}
.cta-inline__icon{flex:none;width:44px;height:44px;border-radius:12px;background:rgba(187,146,38,.16);display:grid;place-items:center}
.cta-inline__icon svg{width:20px;height:20px;fill:var(--gold-bright)}
.cta-inline__body{flex:1;min-width:0}
.cta-inline__body p{font-size:.86rem;color:var(--muted);margin:0 0 3px}
.cta-inline__body b{font-family:var(--font-d);font-weight:600;color:#fff}
.cta-inline .btn{flex:none;white-space:nowrap}
@media(max-width:680px){.cta-inline{flex-direction:column;align-items:flex-start}}

/* caja de autor */
.authorbox{display:flex;gap:18px;background:var(--indigo-2);border:1px solid var(--line);border-radius:var(--r);padding:22px;margin-top:2.4rem}
.authorbox .avatar{width:52px;height:52px;font-size:1.05rem}
.authorbox b{font-family:var(--font-d);font-weight:600;color:#fff;display:block}
.authorbox small{font-size:.76rem;color:var(--muted)}
.authorbox p{font-size:.88rem;color:var(--muted);margin-top:8px}

/* prev / next */
.pn{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:2.2rem}
.pn a{display:flex;flex-direction:column;gap:6px;background:var(--indigo-3);border:1px solid var(--line);border-radius:14px;padding:16px 18px;transition:border-color .15s}
.pn a:hover{border-color:rgba(187,146,38,.5)}
.pn a.next{text-align:right}
.pn .mono{font-family:var(--font-m);font-size:.64rem;color:var(--muted)}
.pn b{font-family:var(--font-d);font-weight:600;font-size:.88rem;color:#fff;line-height:1.3}
@media(max-width:680px){.pn{grid-template-columns:1fr}.pn a.next{text-align:left}}

/* relacionados */
.related{padding:30px 0 80px;border-top:1px solid var(--line)}
.related h2{font-family:var(--font-d);font-weight:600;font-size:1.2rem;margin:24px 0 16px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:780px){.rel-grid{grid-template-columns:1fr}}
.rel{display:flex;flex-direction:column;gap:10px;background:var(--indigo-2);border:1px solid var(--line);border-radius:14px;padding:20px;transition:border-color .15s,transform .15s}
.rel:hover{border-color:rgba(187,146,38,.5);transform:translateY(-3px)}
.rel b{font-family:var(--font-d);font-weight:600;font-size:.92rem;color:#fff;line-height:1.35;flex:1}
.rel .mono{font-size:.64rem;color:var(--muted)}

/* Declaración de asistencia de IA (Art. 50 AI Act): discreta, al pie del cuerpo. */
.aidecl{font-size:.8rem;color:var(--muted);background:rgba(187,146,38,.07);border:1px solid rgba(187,146,38,.22);border-radius:12px;padding:.75rem .9rem;margin:28px 0 0;line-height:1.55}
.aidecl b{color:#fff;font-weight:600}

/* Vídeo incrustado en un artículo: el oEmbed de YouTube llega con 200x113 fijos,
   así que el marco 16:9 lo pone el CSS (el del aula no se carga en el blog). */
.lesson-embed{position:relative;aspect-ratio:16/9;border-radius:14px;overflow:hidden;border:1px solid var(--line);margin:1.4rem 0}
.lesson-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}