/* ═══════════════════════════════════════════════════════════
   INPROD — Sistema de Artículos (blog)
   Comparte el ADN visual de la web principal: pizarra + tiza + dorado.
   ═══════════════════════════════════════════════════════════ */
:root{
  --pizarra:#0B1C16;
  --pizarra-2:#102620;
  --pizarra-3:#143028;
  --cal:#F2EFE4;
  --cal-dim:rgba(242,239,228,.62);
  --cal-line:rgba(242,239,228,.14);
  --foco:#FFC53D;
  --foco-deep:#E8A91B;
  --grass:#5CC08B;
  --display:"Archivo",sans-serif;
  --body:"Instrument Sans",sans-serif;
  --mono:"Spline Sans Mono",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,.014) 0 110px, rgba(0,0,0,0) 110px 220px),
    var(--pizarra);
  color:var(--cal);
  font-family:var(--body);
  font-size:17px;line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--foco);color:var(--pizarra)}
a{color:inherit}
.container{max-width:1120px;margin:0 auto;padding:0 24px}
.reading{max-width:760px;margin:0 auto;padding:0 24px}

/* ---------- NAV ---------- */
.blog-nav{
  position:sticky;top:0;z-index:20;
  background:rgba(11,28,22,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--cal-line);
}
.blog-nav .in{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--cal)}
.brand img{width:34px;height:34px;border-radius:8px;object-fit:cover;border:1.5px solid rgba(255,197,61,.5)}
.brand b{font-family:var(--display);font-weight:900;font-stretch:118%;font-size:17px;letter-spacing:.5px}
.blog-nav .links{display:flex;gap:22px;align-items:center}
.blog-nav .links a{color:var(--cal-dim);text-decoration:none;font-size:14.5px;font-weight:500;transition:color .2s}
.blog-nav .links a:hover{color:var(--foco)}
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--display);font-weight:800;font-stretch:110%;font-size:14.5px;letter-spacing:.3px;
  text-decoration:none;cursor:pointer;border-radius:999px;transition:transform .2s,box-shadow .25s,background .2s;
}
.btn-gold{background:var(--foco);color:#1A1404;padding:11px 22px;border:none}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(255,197,61,.32);background:#FFD159}
.btn-line{border:1.5px solid var(--cal-line);color:var(--cal);padding:10px 20px;background:transparent}
.btn-line:hover{border-color:var(--foco);color:var(--foco)}
@media(max-width:720px){.blog-nav .links a:not(.btn){display:none}}

/* ---------- BREADCRUMB ---------- */
.crumbs{font-family:var(--mono);font-size:12.5px;color:var(--cal-dim);letter-spacing:.3px;padding:26px 0 0}
.crumbs a{color:var(--cal-dim);text-decoration:none}
.crumbs a:hover{color:var(--foco)}
.crumbs .sep{opacity:.5;margin:0 8px}

/* ---------- ARTICLE HEADER ---------- */
.art-head{padding:26px 0 30px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--foco);margin-bottom:20px;
}
.eyebrow::before{content:"";width:26px;height:1.5px;background:var(--foco)}
.art-head h1{
  font-family:var(--display);font-weight:900;font-stretch:116%;
  font-size:clamp(30px,5vw,52px);line-height:1.04;letter-spacing:-.5px;
}
.art-lead{margin-top:22px;font-size:20px;color:var(--cal-dim);line-height:1.6}
.art-meta{
  margin-top:28px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding-top:22px;border-top:1px solid var(--cal-line);
}
.art-author{display:flex;align-items:center;gap:12px}
.art-author img{width:48px;height:48px;border-radius:50%;object-fit:cover;border:2px solid rgba(255,197,61,.55)}
.art-author .who b{display:block;font-size:15px;color:var(--cal);line-height:1.2}
.art-author .who span{font-family:var(--mono);font-size:11.5px;color:var(--cal-dim)}
.art-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--cal-line)}
.art-meta .m{font-family:var(--mono);font-size:12.5px;color:var(--cal-dim)}

/* ---------- COVER ---------- */
.art-cover{
  margin:14px 0 40px;height:220px;border-radius:18px;position:relative;overflow:hidden;
  border:1px solid var(--cal-line);
  display:flex;align-items:center;justify-content:center;
  background:radial-gradient(120% 140% at 15% 10%, rgba(255,197,61,.16), transparent 55%), linear-gradient(150deg,var(--pizarra-3),var(--pizarra-2));
}
.art-cover .ico{font-size:76px;filter:drop-shadow(0 8px 20px rgba(0,0,0,.4))}
.art-cover .pitch{position:absolute;inset:0;opacity:.5;pointer-events:none}

/* ---------- PROSE ---------- */
.prose{font-size:18px;line-height:1.8;color:#E9E6DA}
.prose h2{
  font-family:var(--display);font-weight:800;font-stretch:112%;
  font-size:clamp(23px,3.4vw,30px);line-height:1.15;letter-spacing:-.3px;
  margin:46px 0 14px;color:var(--cal);scroll-margin-top:80px;
}
.prose h2 .n{color:var(--foco);font-family:var(--mono);font-size:.62em;font-weight:600;margin-right:12px;vertical-align:middle}
.prose h3{font-family:var(--display);font-weight:800;font-size:20px;margin:30px 0 10px;color:var(--cal)}
.prose p{margin:0 0 18px}
.prose strong{color:#fff;font-weight:700}
.prose a.inline{color:var(--foco);text-decoration:none;border-bottom:1px solid rgba(255,197,61,.4)}
.prose a.inline:hover{border-color:var(--foco)}
.prose ul,.prose ol{margin:0 0 20px;padding-left:22px}
.prose li{margin:0 0 10px}
.prose li::marker{color:var(--foco)}
.prose blockquote{
  margin:28px 0;padding:18px 24px;border-left:3px solid var(--foco);
  background:var(--pizarra-2);border-radius:0 12px 12px 0;
  font-family:var(--display);font-weight:600;font-size:20px;line-height:1.4;color:var(--cal);
}

/* callout: claves */
.callout{
  margin:30px 0;padding:22px 26px;border-radius:16px;
  background:linear-gradient(150deg, rgba(255,197,61,.08), rgba(92,192,139,.05));
  border:1px solid rgba(255,197,61,.32);
}
.callout .t{font-family:var(--mono);font-size:12px;letter-spacing:1.4px;text-transform:uppercase;color:var(--foco);margin-bottom:12px}
.callout ul{margin:0;padding-left:20px}
.callout li{margin-bottom:8px;color:var(--cal)}

/* ---------- CTA CURSO ---------- */
.course-cta{
  margin:44px 0;padding:30px;border-radius:20px;
  background:linear-gradient(150deg,var(--pizarra-3),var(--pizarra-2));
  border:1px solid rgba(255,197,61,.4);
  box-shadow:0 18px 48px rgba(0,0,0,.35), inset 0 0 30px rgba(255,197,61,.05);
}
.course-cta .k{font-family:var(--mono);font-size:11.5px;letter-spacing:1.4px;text-transform:uppercase;color:var(--grass);margin-bottom:10px}
.course-cta h3{font-family:var(--display);font-weight:900;font-stretch:114%;font-size:26px;line-height:1.1;text-transform:uppercase}
.course-cta p{margin:12px 0 22px;color:var(--cal-dim);font-size:16px}
.course-cta .row{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- AUTHOR BOX ---------- */
.author-box{
  margin:40px 0;display:flex;gap:18px;align-items:flex-start;
  padding:24px;border-radius:16px;background:var(--pizarra-2);border:1px solid var(--cal-line);
}
.author-box img{width:70px;height:70px;border-radius:50%;object-fit:cover;flex-shrink:0;border:2px solid rgba(255,197,61,.5)}
.author-box .k{font-family:var(--mono);font-size:11px;letter-spacing:1.4px;text-transform:uppercase;color:var(--foco)}
.author-box b{display:block;font-family:var(--display);font-weight:800;font-size:19px;margin:4px 0 6px}
.author-box p{font-size:14.5px;color:var(--cal-dim);line-height:1.55}

/* ---------- AVISO LEGAL + FUENTES ---------- */
.disclaimer{
  margin:34px 0;padding:16px 20px;border-radius:12px;
  background:rgba(255,255,255,.03);border:1px dashed var(--cal-line);
  font-size:14px;color:var(--cal-dim);line-height:1.6;
}
.disclaimer b{
  display:block;margin-bottom:6px;
  font-family:var(--mono);font-size:11px;letter-spacing:1.2px;text-transform:uppercase;color:var(--foco);
}
.sources{margin:36px 0 0;padding-top:26px;border-top:1px solid var(--cal-line)}
.sources h2{font-family:var(--display);font-weight:800;font-size:21px;margin:0 0 8px;color:var(--cal)}
.sources .note{font-size:13.5px;color:var(--cal-dim);margin-bottom:16px}
.sources ol{margin:0;padding-left:20px}
.sources li{margin-bottom:12px;font-size:14.5px;color:var(--cal-dim);line-height:1.55}
.sources li::marker{color:var(--foco)}
.sources a{color:var(--foco);text-decoration:none;border-bottom:1px solid rgba(255,197,61,.35);word-break:break-word}
.sources a:hover{border-color:var(--foco)}

/* ---------- HUB (listado) ---------- */
.hub-head{padding:54px 0 30px;text-align:center;max-width:720px;margin:0 auto}
.hub-head h1{font-family:var(--display);font-weight:900;font-stretch:118%;font-size:clamp(34px,6vw,60px);text-transform:uppercase;line-height:1;letter-spacing:-1px}
.hub-head p{margin-top:18px;color:var(--cal-dim);font-size:18px}
.hub-group{margin:38px 0}
.hub-group-label{
  font-family:var(--mono);font-size:12.5px;letter-spacing:1.4px;text-transform:uppercase;color:var(--foco);
  display:flex;align-items:center;gap:12px;margin-bottom:20px;
}
.hub-group-label::after{content:"";flex:1;height:1px;background:var(--cal-line)}
.hub-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.card{
  display:flex;flex-direction:column;text-decoration:none;color:inherit;
  background:var(--pizarra-2);border:1px solid var(--cal-line);border-radius:16px;overflow:hidden;
  transition:transform .3s,border-color .3s,box-shadow .3s;
}
.card:hover{transform:translateY(-5px);border-color:rgba(255,197,61,.5);box-shadow:0 18px 44px rgba(0,0,0,.4)}
.card .top{height:118px;display:flex;align-items:center;justify-content:center;font-size:48px;background:radial-gradient(120% 130% at 20% 10%, rgba(255,197,61,.16), transparent 55%), linear-gradient(150deg,var(--pizarra-3),var(--pizarra-2))}
.card .body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.card .tag{font-family:var(--mono);font-size:11px;letter-spacing:1px;color:var(--grass);text-transform:uppercase;margin-bottom:9px}
.card h3{font-family:var(--display);font-weight:800;font-stretch:110%;font-size:19px;line-height:1.2;margin-bottom:10px}
.card p{font-size:14px;color:var(--cal-dim);flex:1}
.card .more{margin-top:16px;font-family:var(--mono);font-size:12.5px;color:var(--foco)}

/* ---------- FOOTER ---------- */
.blog-foot{border-top:1px solid var(--cal-line);margin-top:64px;padding:40px 0}
.blog-foot .in{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.blog-foot small{color:var(--cal-dim);font-size:13px}
.blog-foot a{color:var(--cal-dim);text-decoration:none;font-size:13.5px;font-family:var(--mono)}
.blog-foot a:hover{color:var(--foco)}

@media(max-width:600px){
  body{font-size:16px}
  .prose{font-size:16.5px}
  .art-cover{height:170px}
  .art-cover .ico{font-size:60px}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}