/* blog.css — estilos del blog de dvive. Comparte tokens con la landing. */
:root{
  --brand:#ff4d4d; --brand-dark:#d83434; --brand-soft:#fff1f1;
  --ink:#16161d; --muted:#5b5b6b; --line:#ececf1;
  --bg:#ffffff; --bg-soft:#faf9fb; --bg-ink:#15151f;
  --ok:#1d9e75; --ok-soft:#e7f6f0;
  --radius:14px; --maxw:1120px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.18;letter-spacing:-0.02em;font-weight:800}
img{max-width:100%;height:auto}

/* Botones (idénticos a la landing) */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;padding:13px 22px;border-radius:10px;border:1.5px solid transparent;cursor:pointer;transition:.15s;white-space:nowrap}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-lg{padding:16px 28px;font-size:16px}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--brand-dark);background:var(--brand-soft);padding:6px 12px;border-radius:999px}

/* Header / Footer (idénticos a la landing) */
/* Solo la barra de navegación (header hijo directo de body) es sticky.
   Ojo: la cabecera del artículo es <header class="article-head"> y NO debe quedar fija. */
body>header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.article-head{position:static}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo img{height:28px;width:auto;display:block}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:15px;font-weight:500;color:var(--muted)}
.nav-links a:hover,.nav-links a[aria-current=page]{color:var(--ink)}
.nav-links a[aria-current=page]{font-weight:600}
.nav-cta{display:flex;gap:12px;align-items:center}
footer{background:var(--bg-ink);color:#aaadbf;padding:48px 0 32px;font-size:14px;margin-top:64px}
footer .logo img{height:24px}
.foot-grid{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;align-items:flex-start}
footer .logo{color:#fff}
footer a{color:#aaadbf}footer a:hover{color:#fff}
.foot-bottom{border-top:1px solid #2a2a3a;margin-top:28px;padding-top:20px;font-size:12.5px;color:#777}

/* Chip de categoría */
.cat-chip{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.03em;text-transform:uppercase;color:var(--brand-dark);background:var(--brand-soft);padding:5px 11px;border-radius:999px}

/* ---------- Índice del blog ---------- */
.blog-hero{padding:64px 0 40px;background:radial-gradient(820px 460px at 85% -20%, rgba(255,77,77,.12), rgba(255,255,255,0) 60%);border-bottom:1px solid var(--line)}
.blog-hero h1{font-size:clamp(32px,5vw,46px);margin:16px 0 14px;max-width:760px}
.blog-hero p{font-size:18px;color:var(--muted);max-width:680px}
.blog-list{padding:44px 0 24px}
.cat-filter{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}
.cat-btn{font-family:var(--font);font-size:14px;font-weight:600;padding:8px 16px;border-radius:999px;border:1.5px solid var(--line);background:#fff;color:var(--muted);cursor:pointer;transition:.15s}
.cat-btn:hover{border-color:var(--ink);color:var(--ink)}
.cat-btn.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post-card{display:flex;flex-direction:column;gap:10px;border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:#fff;box-shadow:0 1px 2px rgba(20,20,40,.04);transition:.16s}
.post-card:hover{border-color:var(--brand);transform:translateY(-3px);box-shadow:0 22px 46px -22px rgba(20,20,40,.22)}
.post-card h2,.post-card h3{font-size:19px;font-weight:700;letter-spacing:-0.01em;line-height:1.3}
.post-card p{font-size:14.5px;color:var(--muted);flex:1}
.post-card-meta{font-size:12.5px;color:var(--muted)}

/* ---------- Artículo ---------- */
/* Una columna centrada en todos los tamaños. */
.article-layout{padding-top:36px}
.article-main{min-width:0;max-width:700px;margin:0 auto}
.article-wrap{max-width:760px;padding-top:36px} /* compat */

/* Tarjeta CTA flotante: pequeña, pegada al borde derecho y centrada en vertical.
   Solo en pantallas anchas (hay sitio); en el resto se usa el CTA intermedio. */
.article-aside{display:none}
@media(min-width:1366px){
  .article-aside{display:block}
}
.aside-cta{position:fixed;right:20px;top:50%;transform:translateY(-50%);width:288px;text-align:center;background:linear-gradient(140deg,#1e1e2b,#141420);color:#fff;border-radius:16px;padding:26px 24px;box-shadow:0 24px 48px -26px rgba(20,20,40,.55);z-index:40}
.aside-brand{font-weight:800;font-size:19px;letter-spacing:-0.04em;color:#fff}
.aside-title{color:#fff;font-weight:700;font-size:17px;line-height:1.3;margin:11px 0 7px}
.aside-text{color:#c4c4d2;font-size:13.5px;line-height:1.55;margin:0 0 16px}
.aside-btn{width:100%;justify-content:center;padding:12px 16px;font-size:14.5px}
.aside-link{display:block;margin-top:10px;font-size:12.5px;color:#aaadbf;text-decoration:underline;text-underline-offset:2px}
.aside-link:hover{color:#fff}

.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:22px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--brand-dark)}
.breadcrumb span{color:var(--line)}
.article-head{margin-bottom:14px}
.article-head h1{font-size:clamp(30px,4.4vw,44px);margin:14px 0 16px}
.article-lead{font-size:19px;color:var(--muted);line-height:1.55}
.article-meta{display:flex;gap:10px;flex-wrap:wrap;align-items:center;font-size:14px;color:var(--muted);margin-top:18px;padding-bottom:26px;border-bottom:1px solid var(--line)}

/* Índice (TOC) */
.toc{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:20px 24px;margin:30px 0}
.toc-title{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin-bottom:10px}
.toc ol{margin:0;padding-left:20px;display:grid;gap:7px}
.toc a{font-size:15px;color:var(--ink);font-weight:500}
.toc a:hover{color:var(--brand-dark)}

/* Tipografía del cuerpo */
.prose{font-size:17.5px;line-height:1.75;color:#2b2b36}
.prose p{margin:0 0 20px}
.prose h2{font-size:27px;margin:44px 0 16px;scroll-margin-top:90px}
.prose h3{font-size:21px;margin:32px 0 12px;scroll-margin-top:90px}
.prose ul,.prose ol{margin:0 0 22px;padding-left:24px;display:grid;gap:9px}
.prose li{padding-left:4px}
.prose a{color:var(--brand-dark);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px;font-weight:500}
.prose a:hover{color:var(--brand)}
/* Los botones dentro del texto (CTA intermedio) no llevan subrayado ni color de enlace. */
.prose a.btn{text-decoration:none;font-weight:600}
.prose a.btn-primary,.prose a.btn-primary:hover{color:#fff}
.prose strong{color:var(--ink);font-weight:700}
.prose blockquote{margin:26px 0;padding:14px 22px;border-left:4px solid var(--brand);background:var(--brand-soft);border-radius:0 10px 10px 0;color:var(--ink)}
.prose blockquote p{margin:0}
.prose code{background:var(--bg-soft);border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:.9em;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.prose img{border-radius:12px;border:1px solid var(--line);margin:24px 0}
.prose hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15.5px}
.prose th,.prose td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.prose thead th{background:var(--bg-soft);font-weight:700}
.prose tbody tr:nth-child(even){background:#fcfcfd}

/* Aviso / callout */
.callout{border-radius:12px;padding:16px 20px;font-size:15px;margin:30px 0}
.callout-info{background:var(--bg-soft);border:1px solid var(--line);color:var(--muted)}

/* CTA al final del artículo */
.post-cta{background:linear-gradient(140deg,#1e1e2b,#141420);color:#fff;border-radius:20px;padding:40px 36px;margin:48px 0 8px;text-align:center}
.post-cta h2{color:#fff;font-size:25px;margin-bottom:12px;letter-spacing:-0.02em}
.post-cta p{color:#c4c4d2;font-size:16.5px;max-width:520px;margin:0 auto 22px}
.post-cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.post-cta .btn-ghost{background:transparent;color:#fff;border-color:#34344a}
.post-cta .btn-ghost:hover{border-color:#fff}
.post-cta-fine{margin:16px 0 0;font-size:13px;color:#8a8a9e}

/* CTA intermedio (a mitad de lectura) */
.inline-cta{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;background:var(--brand-soft);border:1px solid #ffd6d6;border-radius:14px;padding:18px 22px;margin:34px 0}
.inline-cta div{display:flex;flex-direction:column;gap:3px}
.inline-cta strong{font-size:16px;color:var(--ink);letter-spacing:-0.01em}
.inline-cta span{font-size:14.5px;color:var(--muted)}
.inline-cta .btn{flex:none}

/* Banda CTA al final del índice del blog */
.blog-cta-band{padding:8px 0 56px}

/* Relacionados */
.related{margin-top:54px;padding-top:36px;border-top:1px solid var(--line)}
.related>h2{font-size:22px;margin-bottom:20px}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}

@media(max-width:880px){
  .post-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .nav-links{display:none}
  .nav-cta .btn-ghost{display:none}
  .prose{font-size:17px}
}