/* ============================================================
   BLOG wba.cl — porte FIEL del css del modulo blog del WBA Core
   (core/css/blog.css v1.2, generalizado del blog de Espeleosur).
   Solo se adaptan los TOKENS a la paleta de wba.cl y el header
   (.nav en vez de .site-header). El resto es identico a la madre.
   ============================================================ */
:root{
  --blog-fd: var(--font-display, 'Frutiger', 'Inter', sans-serif);    /* display */
  --blog-fb: var(--font-main, 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif);
  --blog-ink: #131314;                 /* titulos / acentos fuertes */
  --blog-accent: var(--accent, #FF5D3C);   /* kicker, links, etiquetas */
  --blog-gold: var(--accent, #FF5D3C);     /* detalles, dots, botones */
  --blog-gold-soft: #FF8A70;               /* mark, kicker sobre oscuro */
  --blog-on-gold: #fff;
  --blog-text: #1a1a1a;
  --blog-muted: #666;
  --blog-border: #e0e0e0;
  --blog-bg: #fff;
  --blog-bg-alt: #f5f5f5;
  --blog-dark: #131314;                /* chrome inmersivo (hero/galeria) */
  --blog-on-dark: #f5f5f5;
  --blog-s4: 24px;
  --blog-s5: 40px;
  --blog-s6: 64px;
  --blog-s7: 96px;
}

/* Estructura .sect/.wrap del Core (wba.cl usa .container; el blog trae la suya) */
.sect{padding:var(--blog-s6) 0;background:var(--blog-bg)}
.wrap{max-width:1100px;margin:0 auto;padding:0 clamp(20px,3vw,40px)}

/* mark permitido por el sanitizador (resaltado del editor) */
.post-body mark{background:var(--blog-gold-soft);color:var(--blog-text)}

/* ===== HERO full-bleed: imagen destacada a sangre + degradado + titulo encima ===== */
.post-hero{position:relative;min-height:clamp(420px,60vh,600px);display:flex;flex-direction:column;justify-content:flex-end;align-items:center;text-align:center;
  background:#0a1016 var(--hero-img,none) center 38%/cover no-repeat;color:var(--blog-on-dark);overflow:hidden}
.post-hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(4,6,10,.30) 0%,rgba(4,6,10,.55) 50%,rgba(4,6,10,.85) 100%)}
.post-hero .wrap{position:relative;z-index:1;width:100%}
.post-hero .inner{max-width:1080px;margin:0 auto;padding:calc(var(--nav-height, 68px) + var(--blog-s7)) 0 var(--blog-s5)}
.post-hero .post-kicker{margin:0 0 .55rem}
.post-hero .post-kicker .cat{font-family:var(--blog-fd);text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:600;color:var(--blog-gold-soft);background:transparent;padding:0}
.post-hero h1{font-family:var(--blog-fd);font-weight:700;font-size:clamp(2.1rem,4.8vw,3.9rem);color:#fff;line-height:1.05;margin:.35rem auto 1rem;max-width:none;text-shadow:0 2px 24px rgba(0,0,0,.5)}
.post-hero .post-meta{color:rgba(245,245,245,.88);font-family:var(--blog-fb);font-size:.92rem;letter-spacing:.01em}

/* ===== Layout articulo + galeria lateral ===== */
.post-layout{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:1fr 330px;gap:var(--blog-s6);align-items:start}
.post-body{font-size:1.08rem;line-height:1.8;color:var(--blog-text);min-width:0;overflow-wrap:break-word}
.post-body>.lead{font-size:1.25rem;line-height:1.6;color:var(--blog-text);margin-bottom:1.4rem}
.post-body p{margin-bottom:1.2rem}
.post-body h2{font-family:var(--blog-fd);text-transform:uppercase;letter-spacing:.01em;font-size:1.5rem;color:var(--blog-ink);margin:2.2rem 0 1rem}
.post-body h3{font-family:var(--blog-fd);font-size:1.15rem;color:var(--blog-ink);margin:1.6rem 0 .6rem}
.post-body h4{font-family:var(--blog-fd);text-transform:uppercase;letter-spacing:.02em;font-size:1.02rem;color:var(--blog-ink);margin:1.4rem 0 .5rem}
/* link "novedoso": palabra subrayada refinada (no boton) */
.post-body a{color:var(--blog-accent);text-decoration:underline;text-decoration-color:var(--blog-gold);text-decoration-thickness:2px;text-underline-offset:3px;transition:color .2s,text-decoration-color .2s;overflow-wrap:anywhere;word-break:break-word}
.post-body a:hover{color:var(--blog-ink);text-decoration-color:var(--blog-ink)}
.post-body figure{margin:1.6rem 0;max-width:100%}
.post-body figure img{width:100%;display:block;cursor:zoom-in}
.post-body figcaption{font-size:.82rem;color:var(--blog-muted);margin-top:.5rem;font-family:var(--blog-fd);text-transform:uppercase;letter-spacing:.04em}
.post-body figcaption:empty{display:none}
/* posicion de la imagen respecto al texto (la define el editor) */
.post-body figure.post-fig{margin:.4rem 0 1.4rem}
.post-body figure.post-fig.der{float:right;width:46%;margin-left:1.8rem}
.post-body figure.post-fig.izq{float:left;width:46%;margin-right:1.8rem}
.post-body figure.post-fig.ancho{float:none;width:100%;clear:both}
.post-body::after{content:'';display:block;clear:both}
.post-body blockquote{border-left:4px solid var(--blog-ink);background:var(--blog-bg-alt);margin:1.8rem 0;padding:1rem 1.4rem;font-size:1.22rem;line-height:1.5;color:var(--blog-ink);font-style:italic}
.post-body blockquote p:last-child{margin-bottom:0}
@media(max-width:640px){
  .post-body figure.post-fig.der,.post-body figure.post-fig.izq{float:none;width:100%;margin-left:0;margin-right:0}
  .post-body{font-size:.95rem;line-height:1.7}
  .post-body>.lead{font-size:1.1rem}
}

/* ===== Bloques de contenido opcionales (design-system / posts migrados) ===== */
.post-body .post-row{margin:var(--blog-s6) 0}
.post-body .post-row:first-child{margin-top:0}
.post-body .post-row .post-text>*:first-child{margin-top:0}
.post-body .post-row .post-text>*:last-child{margin-bottom:0}
.post-body .post-row--media{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:var(--blog-s5);align-items:center}
.post-body .post-row__media img{width:100%;height:auto;display:block;margin:0}
.post-body .post-row__body>*:first-child{margin-top:0}
.post-body .post-row__body>*:last-child{margin-bottom:0}
.post-body .post-row>.post-row__image{width:100%;height:auto;display:block;margin:0 auto}
.post-body .post-row__cta{margin-top:var(--blog-s4)}
.post-body .post-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 1.6rem;background:var(--blog-gold);color:var(--blog-on-gold);font-family:var(--blog-fd);text-transform:uppercase;letter-spacing:.04em;font-weight:600;font-size:.92rem;text-decoration:none;border:none;transition:background .25s,transform .25s}
.post-body .post-btn:hover{background:var(--blog-ink);color:#fff;transform:translateY(-2px)}
.post-body .post-blurb-grid{display:grid;grid-template-columns:1fr;gap:1.1rem;margin:var(--blog-s4) 0}
.post-body .post-row--cards .post-blurb-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.post-body .post-row__body .post-blurb-grid{margin:0}
.post-body .post-blurb{padding:1.2rem 1.4rem;background:var(--blog-bg-alt);border-left:3px solid var(--blog-ink)}
.post-body .post-blurb__title{display:block;font-family:var(--blog-fd);text-transform:uppercase;letter-spacing:.02em;font-size:1.02rem;font-weight:600;color:var(--blog-ink);margin-bottom:.4rem}
.post-body .post-blurb p{margin:0;font-size:.95rem;color:var(--blog-muted);line-height:1.55}
.post-body .post-blurb p+p{margin-top:.5rem}
@media(max-width:640px){
  .post-body .post-row{margin:var(--blog-s5) 0}
  .post-body .post-row--media{grid-template-columns:1fr;gap:var(--blog-s4)}
  .post-body .post-row--media.post-row--image-right .post-row__media{order:-1}
}

/* ===== Galeria scrollytelling — 3 COLUMNAS: galeria (izq) | contenido | indice+compartir (der) ===== */
.wrap:has(>.post-layout--gal){max-width:none;margin:0;padding:0 clamp(20px,3vw,40px)}
.post-layout--gal{max-width:calc(680px + (440px + 56px) * 2);margin:0 auto;grid-template-columns:minmax(0,1fr) minmax(0,680px) minmax(0,1fr);column-gap:clamp(26px,3.4vw,56px);align-items:start}
.post-layout--gal .post-body :where(h2,h3){scroll-margin-top:90px}
.post-aside{position:sticky;top:90px;align-self:start;justify-self:end;width:100%;max-width:430px}
/* columna derecha: indice (TOC) + compartir (lo inyecta blog-post.js desde los h2/h3) */
.post-toc{position:sticky;top:90px;align-self:start;justify-self:start;width:100%;max-width:320px}
.post-toc__heading,.post-share__heading{margin:0 0 .9rem;font-family:var(--blog-fd);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--blog-accent);font-weight:600}
.post-toc__list{list-style:none;margin:0 0 var(--blog-s5);padding:0}
.post-toc__item{border-top:1px solid var(--blog-border)}
.post-toc__item:last-child{border-bottom:1px solid var(--blog-border)}
.post-toc__item--h3{padding-left:14px}
.post-toc__anchor{display:block;padding:.7rem 0;color:var(--blog-muted);text-decoration:none;font-size:.9rem;line-height:1.35;transition:color .2s}
.post-toc__anchor:hover{color:var(--blog-text)}
.post-toc__anchor.is-active{color:var(--blog-accent);font-weight:600}
.post-toc__nav.is-empty{display:none}
.post-share__links{display:flex;flex-direction:column;align-items:flex-start;gap:.6rem}
.post-share__link{background:none;border:0;padding:0;font:inherit;font-family:var(--blog-fd);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;color:var(--blog-text);text-decoration:none;cursor:pointer;transition:color .2s}
.post-share__link:hover{color:var(--blog-accent)}
.post-figura{position:relative;margin:0;aspect-ratio:4/5;background:var(--blog-dark);overflow:hidden}
.post-figura .g-item{position:absolute;inset:0;margin:0;opacity:0;transition:opacity .6s ease}
.post-figura .g-item.is-active{opacity:1}
.post-figura .g-item img{width:100%;height:100%;object-fit:cover;display:block;cursor:zoom-in}
.post-figura .g-item figcaption{position:absolute;left:0;right:0;bottom:0;margin:0;padding:1.6rem 1.1rem .9rem;font-family:var(--blog-fd);text-transform:uppercase;letter-spacing:.06em;font-size:.74rem;line-height:1.3;color:#fff;background:linear-gradient(180deg,transparent,rgba(10,10,10,.88))}
.post-figura .g-item figcaption:empty{display:none}
.g-expand{position:absolute;top:10px;right:10px;z-index:4;width:38px;height:38px;display:flex;align-items:center;justify-content:center;border:none;border-radius:8px;background:rgba(10,10,10,.55);color:#fff;cursor:pointer;transition:background .2s}
.g-expand:hover{background:rgba(10,10,10,.82)}
.g-expand svg{width:18px;height:18px}
.post-aside .g-dots{display:flex;gap:.45rem;justify-content:center;margin-top:.9rem}
.post-aside .g-dots i{width:6px;height:6px;border-radius:50%;background:var(--blog-border);transition:background .3s,transform .3s}
.post-aside .g-dots i.is-active{background:var(--blog-accent);transform:scale(1.4)}
.post-figura .g-count{display:none}  /* contador "N/M": solo en la caja mobile */

@media(max-width:880px){
  .post-layout{grid-template-columns:1fr;gap:var(--blog-s5)}
  /* galeria en mobile: CAJA 16:9 STICKY ARRIBA. Se pega bajo el tope, cambia con
     el scroll y se retira al asomar el final de la nota. El header de wba.cl es
     .nav position:fixed → en la nota pasa a absolute para que la caja se ancle
     al viewport (equivalente al .site-header{position:static} del Core). */
  .post-layout--gal{display:block;max-width:none;margin:0}
  .post-toc{display:none}
  body:has(.post-figura[data-gallery]) .nav{position:absolute}
  /* full-bleed por margen negativo = padding del .wrap (NO 100vw, que incluye el scrollbar) */
  .post-aside{position:sticky;top:0;z-index:5;align-self:auto;width:calc(100% + clamp(20px,3vw,40px) * 2);max-width:none;margin:0 0 1.4rem;margin-inline:calc(clamp(20px,3vw,40px) * -1);background:var(--blog-dark);transition:transform .35s ease,opacity .35s ease}
  .post-aside.is-hidden{transform:translateY(calc(-100% - 80px));opacity:0;pointer-events:none}
  .post-figura{aspect-ratio:16/9;max-height:46vh;width:100%;margin:0;background:var(--blog-dark);cursor:zoom-in}
  .post-figura .g-item{transition:opacity .4s ease}
  .post-figura .g-item figcaption{padding:.6rem .9rem;background:rgba(10,10,10,.82);font-size:.7rem;letter-spacing:.05em}
  .post-figura .g-count{display:block;position:absolute;top:10px;left:12px;z-index:4;font-family:var(--blog-fd);font-size:.68rem;letter-spacing:.05em;color:#fff;background:rgba(10,10,10,.5);padding:.18rem .5rem;border-radius:6px}
  .post-aside .g-dots{display:none}
}

/* ===== Visor (lightbox) de la galeria: imagen grande + flechas + miniaturas + contador ===== */
.lightbox{position:fixed;inset:0;background:rgba(8,8,8,.95);z-index:2000;display:none;flex-direction:column;align-items:center;justify-content:center;padding:clamp(.8rem,2vw,1.6rem);gap:.7rem}
.lightbox.on{display:flex}
.lb-stage{margin:0;flex:1 1 auto;min-height:0;display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;gap:.7rem}
.lb-img{max-width:92vw;max-height:72vh;object-fit:contain;background:var(--blog-dark)}
.lb-cap{margin:0;color:#fff;font-family:var(--blog-fd);text-transform:uppercase;letter-spacing:.05em;font-size:.78rem;line-height:1.3;text-align:center;max-width:80ch}
.lb-count{color:rgba(255,255,255,.7);font-family:var(--blog-fd);font-size:.78rem;letter-spacing:.05em}
.lb-x{position:absolute;top:1rem;right:1.2rem;z-index:2;width:44px;height:44px;border:1px solid rgba(255,255,255,.25);background:rgba(10,10,10,.6);color:#fff;font-family:var(--blog-fd);font-size:1.5rem;cursor:pointer;display:flex;align-items:center;justify-content:center}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);z-index:2;width:48px;height:48px;border:none;background:rgba(10,10,10,.5);color:#fff;font-size:2rem;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}
.lb-nav:hover{background:rgba(10,10,10,.85)}
.lb-prev{left:clamp(.4rem,2vw,1.4rem)}
.lb-next{right:clamp(.4rem,2vw,1.4rem)}
.lb-thumbs{flex:0 0 auto;display:flex;gap:.45rem;overflow-x:auto;max-width:100%;padding:.2rem .1rem}
.lb-thumb{flex:0 0 auto;width:72px;height:52px;padding:0;border:2px solid transparent;background:none;cursor:pointer;opacity:.5;transition:opacity .2s,border-color .2s}
.lb-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.lb-thumb:hover{opacity:.85}
.lb-thumb.is-active{opacity:1;border-color:var(--blog-gold)}
@media(max-width:640px){
  .lb-nav{width:40px;height:40px;font-size:1.6rem}
  .lb-img{max-height:62vh}
  .lb-thumb{width:56px;height:40px}
}

/* navegacion entre posts (pie del articulo) */
.post-nav{border-top:1px solid var(--blog-border);margin-top:var(--blog-s6);padding-top:var(--blog-s4);display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.post-nav .lnk{font-family:var(--blog-fd);text-transform:uppercase;letter-spacing:.05em;font-size:.82rem;color:var(--blog-accent);text-decoration:none}
.post-nav .lnk:hover{color:var(--blog-ink)}

/* ===== Chips de filtro por categoria (listado /blog de wba.cl) ===== */
.blog-filtros{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 28px}
.blog-filtros .chip{appearance:none;background:transparent;border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.65);border-radius:999px;padding:8px 18px;font:inherit;font-size:.82rem;letter-spacing:.02em;cursor:pointer;transition:color .25s,border-color .25s,background .25s}
.blog-filtros .chip:hover{color:#fff;border-color:rgba(255,255,255,.45)}
.blog-filtros .chip.is-active{background:#fff;border-color:#fff;color:#0a0a0a}
.blog-filtros.is-hidden{display:none}