/* =========================================================
   Certicedula · Blog (listado + artículo). Independiente de Bootstrap.
   ========================================================= */
:root{
  --turquesa:#14a3a3;--turquesa-osc:#0b6f73;--turquesa-claro:#e6f6f6;
  --naranja:#f39c12;--naranja-osc:#d9820a;
  --texto:#1f2a33;--texto-suave:#5b6b78;--fondo:#f6f9fa;--borde:#e3eaee;
  --sombra:0 10px 30px rgba(15,60,70,.08);--sombra-hover:0 16px 40px rgba(15,60,70,.14);
}
body.blog{margin:0;font-family:'Plus Jakarta Sans',-apple-system,'Segoe UI',Roboto,sans-serif;color:var(--texto);
  background:var(--fondo);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
.blog *{box-sizing:border-box}
.blog a{color:var(--turquesa-osc)}
.blog img{max-width:100%;height:auto}
.b-wrap{max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- Cabecera de sección ---------- */
.b-hero{position:relative;overflow:hidden;color:#fff;padding:58px 0 84px;text-align:center;
  background:radial-gradient(circle at 85% 15%,rgba(243,156,18,.18),transparent 40%),linear-gradient(135deg,var(--turquesa-osc),var(--turquesa))}
.b-hero:after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:48px;background:var(--fondo);border-radius:50% 50% 0 0/100% 100% 0 0}
.b-hero .b-wrap{position:relative;z-index:1}
.b-eyebrow{display:inline-block;font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:#ffd08a;margin-bottom:10px}
.b-hero h1{color:#fff;font-size:42px;font-weight:800;line-height:1.15;margin:0 0 12px}
.b-hero p{max-width:640px;margin:0 auto 24px;font-size:17px;opacity:.95}
.b-buscar{position:relative;max-width:540px;margin:0 auto}
.b-buscar input{width:100%;border:0;border-radius:14px;padding:15px 18px 15px 48px;font:inherit;font-size:16px;color:var(--texto);box-shadow:0 14px 34px rgba(0,40,50,.25)}
.b-buscar input:focus{outline:3px solid rgba(243,156,18,.6)}
.b-buscar svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:20px;height:20px;color:var(--turquesa-osc)}

/* ---------- Listado ---------- */
.b-chips{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:0 0 30px}
.b-chips button{border:1.5px solid #cfe7e7;background:#fff;color:var(--turquesa-osc);font:inherit;font-size:14px;font-weight:700;
  padding:7px 15px;border-radius:999px;cursor:pointer}
.b-chips button::first-letter{text-transform:uppercase}
.b-chips button.on{background:var(--turquesa);border-color:var(--turquesa);color:#fff}
.b-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;padding-bottom:30px}
.b-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--borde);border-radius:18px;overflow:hidden;
  text-decoration:none!important;color:var(--texto)!important;transition:transform .2s,box-shadow .2s}
.b-card:hover{transform:translateY(-4px);box-shadow:var(--sombra-hover)}
.b-card .b-img{aspect-ratio:16/9;background:linear-gradient(135deg,var(--turquesa-claro),#cdeeee);position:relative;overflow:hidden}
.b-card .b-img img{width:100%;height:100%;object-fit:cover;display:block}
.b-card .b-img .ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--turquesa)}
.b-card .b-img .ph svg{width:54px;height:54px;opacity:.6}
.b-card .b-cuerpo{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.b-tag{display:inline-block;align-self:flex-start;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;
  color:var(--turquesa-osc);background:var(--turquesa-claro);padding:4px 10px;border-radius:6px;margin-bottom:10px}
.b-card h2{font-size:19px;line-height:1.3;margin:0 0 10px}
.b-card p{color:var(--texto-suave);font-size:15px;margin:0 0 16px;flex:1}
.b-card .b-pie{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--texto-suave)}
.b-card .b-pie b{color:var(--naranja-osc)}
.b-card.destacada{grid-column:1 / -1;flex-direction:row}
.b-card.destacada .b-img{flex:0 0 55%;aspect-ratio:auto;min-height:320px}
.b-card.destacada h2{font-size:28px}
.b-vacio{display:none;text-align:center;padding:40px;color:var(--texto-suave)}

/* ---------- Artículo ---------- */
.a-cab{padding:46px 0 10px;text-align:center}
.a-cab .b-wrap{max-width:860px}
.a-migas{font-size:14px;color:var(--texto-suave);margin-bottom:16px}
.a-migas a{text-decoration:none;font-weight:600}
.a-cab h1{font-size:42px;line-height:1.15;font-weight:800;margin:6px 0 16px;letter-spacing:-.01em}
.a-meta{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 18px;color:var(--texto-suave);font-size:15px}
.a-meta span{display:inline-flex;align-items:center;gap:6px}
.a-meta svg{width:16px;height:16px;color:var(--turquesa)}
.a-portada{max-width:1000px;margin:28px auto 0;padding:0 20px}
.a-portada img{width:100%;max-height:520px;object-fit:cover;border-radius:22px;box-shadow:var(--sombra);display:block}
.a-cuerpo{max-width:760px;margin:0 auto;padding:36px 20px 10px}
.prose{font-size:18px;line-height:1.8;color:#2a3640;overflow-wrap:break-word}
.prose p{margin:0 0 1.15em}
.prose h2{font-size:28px;line-height:1.25;margin:1.8em 0 .6em;color:var(--texto)}
.prose h3{font-size:22px;line-height:1.3;margin:1.6em 0 .5em;color:var(--texto)}
.prose h4{font-size:19px;margin:1.4em 0 .4em}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.4em}
.prose li{margin-bottom:.45em}
.prose li p{margin:0}
.prose li::marker{color:var(--turquesa)}
.prose a{color:var(--turquesa-osc);font-weight:600;text-decoration:underline;text-decoration-color:rgba(20,163,163,.4);text-underline-offset:3px}
.prose a:hover{color:var(--naranja-osc)}
.prose img{border-radius:14px;margin:1em 0}
.prose figure{margin:1.6em 0}
.prose figcaption{font-size:14px;color:var(--texto-suave);text-align:center;margin-top:6px}
.prose blockquote{margin:1.6em 0;padding:16px 22px;border-left:4px solid var(--naranja);background:#fff8ec;border-radius:0 12px 12px 0;color:var(--texto)}
.prose table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:16px;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--borde);padding:10px 12px;text-align:left}
.prose th{background:var(--turquesa-claro)}
.prose strong{color:var(--texto)}
.prose iframe{max-width:100%;border-radius:12px}

.a-cta{margin:40px 0 10px;border-radius:22px;padding:32px 30px;color:#fff;
  background:linear-gradient(135deg,var(--turquesa),var(--turquesa-osc));display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between}
.a-cta h2{color:#fff;font-size:23px;margin:0 0 6px}
.a-cta p{margin:0;opacity:.92}
.a-cta .b-btns{display:flex;flex-wrap:wrap;gap:10px}
.b-btn{display:inline-flex;align-items:center;gap:8px;border-radius:12px;padding:13px 20px;font-weight:700;text-decoration:none!important;transition:transform .15s}
.b-btn:hover{transform:translateY(-2px)}
.b-btn-n{background:var(--naranja);color:#fff!important;box-shadow:0 8px 20px rgba(243,156,18,.35)}
.b-btn-w{background:#25d366;color:#fff!important}
.b-btn svg{width:20px;height:20px}

.a-compartir{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:26px 0 0;padding-top:22px;border-top:1px solid var(--borde);font-weight:700;font-size:14px;color:var(--texto-suave)}
.a-compartir a,.a-compartir button{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;
  border:0;background:var(--turquesa-claro);color:var(--turquesa-osc);cursor:pointer;transition:background .15s,color .15s}
.a-compartir a:hover,.a-compartir button:hover{background:var(--turquesa);color:#fff}
.a-compartir svg{width:18px;height:18px}

.a-rel{padding:50px 0 70px}
.a-rel>.b-wrap>h2{text-align:center;font-size:28px;margin:0 0 26px}
.a-preview{position:sticky;top:0;z-index:2000;background:#fff4e3;color:#7a4b00;text-align:center;padding:9px;font-weight:700;font-size:14px}

@media (max-width:991px){
  .b-grid{grid-template-columns:1fr 1fr}
  .b-card.destacada{flex-direction:column}
  .b-card.destacada .b-img{flex:none;aspect-ratio:16/9;min-height:0}
  .b-card.destacada h2{font-size:22px}
}
@media (max-width:640px){
  .b-hero{padding:42px 0 70px}
  .b-hero h1,.a-cab h1{font-size:29px}
  .b-grid{grid-template-columns:1fr}
  .prose{font-size:17px}
  .prose h2{font-size:23px}
  .a-cta{padding:26px 22px}
  .a-cta .b-btns,.a-cta .b-btn{width:100%;justify-content:center}
}