/* ════════════════════════════════════════════════════════════════
   Nexo Empresarial — estilos compartidos para páginas internas
   (hub de Análisis & Noticias y páginas de artículo)
   La portada (index.html) mantiene su CSS en línea; este archivo
   reutiliza la misma paleta y tipografía para las páginas nuevas.
   ════════════════════════════════════════════════════════════════ */
:root{
  --navy:        #0A1F44;
  --navy-2:      #071631;
  --navy-3:      #050E24;
  --graphite:    #3D4756;
  --graphite-2:  #2A323E;
  --light-blue:  #B8C5D6;
  --cream:       #F4F6FA;
  --cream-2:     #E8EEF5;
  --smoke:       #8FA3BD;
  --white:       #FFFFFF;
  --line:        #1F3350;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--navy);
  color:var(--cream);
  font-family:'DM Sans',sans-serif;
  font-weight:400;
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--light-blue);color:var(--navy);}
a{color:inherit;}

.container{max-width:1140px;margin:0 auto;padding:0 32px;}
.container-sm{max-width:820px;margin:0 auto;padding:0 32px;}

/* ── NAV ── */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:18px 32px;
  background:rgba(10,31,68,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(184,197,214,.08);
}
.nav-inner{
  max-width:1140px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
}
.nav-logo{
  height:92px;width:auto;
  filter:brightness(0) invert(1);
  transition:transform .3s ease;
}
.nav-logo:hover{transform:scale(1.03);}
@media(max-width:600px){
  nav{padding:12px 20px;}
  .nav-logo{height:64px;}
}
.nav-links{display:flex;gap:32px;align-items:center;}
.nav-links a{
  color:var(--light-blue);font-size:13px;text-decoration:none;
  font-weight:500;letter-spacing:.3px;transition:color .2s;
}
.nav-links a:hover{color:var(--white);}
.nav-cta{
  padding:9px 20px !important;
  background:var(--light-blue);color:var(--navy) !important;
  border-radius:2px;font-weight:600 !important;
  font-size:12px !important;letter-spacing:1px;
  text-transform:uppercase;transition:background .2s;
}
.nav-cta:hover{background:var(--white) !important;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;padding:0;margin:0;
  background:transparent;border:1px solid rgba(184,197,214,.25);
  border-radius:4px;cursor:pointer;color:var(--light-blue);
}
.nav-toggle:hover{border-color:var(--light-blue);color:var(--white);}
.nav-toggle .nav-toggle-box{display:block;position:relative;width:20px;height:14px;}
.nav-toggle .nav-toggle-bar{
  position:absolute;left:0;width:100%;height:2px;border-radius:2px;
  background:currentColor;transition:transform .25s ease,opacity .2s ease,top .25s ease;
}
.nav-toggle .nav-toggle-bar:nth-child(1){top:0;}
.nav-toggle .nav-toggle-bar:nth-child(2){top:6px;}
.nav-toggle .nav-toggle-bar:nth-child(3){top:12px;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){top:6px;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){top:6px;transform:rotate(-45deg);}
@media(max-width:720px){
  /* Páginas sin hamburguesa (p.ej. artículos): comportamiento previo, solo el CTA visible */
  nav:not(:has(.nav-toggle)) .nav-links a:not(.nav-cta){display:none;}
  /* Páginas con hamburguesa: menú desplegable accesible */
  .nav-toggle{display:inline-flex;}
  nav:has(.nav-toggle) .nav-links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(10,31,68,.98);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid rgba(184,197,214,.12);
    padding:8px 20px 18px;display:none;
  }
  nav:has(.nav-toggle) .nav-links.open{display:flex;}
  nav:has(.nav-toggle) .nav-links a{padding:14px 4px;font-size:15px;border-bottom:1px solid rgba(184,197,214,.08);}
  nav:has(.nav-toggle) .nav-links a.nav-cta{
    margin-top:14px;text-align:center;border-bottom:none;
    padding:13px 20px !important;
  }
}

/* ── SECTION HEADERS ── */
.sec-label{
  font-size:11px;letter-spacing:3px;text-transform:uppercase;
  color:var(--light-blue);margin-bottom:16px;display:inline-flex;align-items:center;gap:12px;
  font-weight:500;
}
.sec-label::before{content:'';width:32px;height:1px;background:var(--light-blue);}
.sec-title{
  font-family:'Playfair Display',serif;
  font-size:clamp(32px,4.5vw,50px);font-weight:700;line-height:1.15;
  margin-bottom:22px;letter-spacing:-.5px;color:var(--white);
}
.sec-title em{color:var(--light-blue);font-style:italic;}
.sec-desc{color:var(--cream-2);font-size:16px;max-width:660px;line-height:1.8;}

/* ── BUTTONS ── */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 30px;font-size:12px;
  letter-spacing:2px;text-transform:uppercase;font-weight:600;
  cursor:pointer;border:none;border-radius:2px;text-decoration:none;
  transition:all .25s ease;font-family:'DM Sans',sans-serif;
}
.btn-primary{background:var(--light-blue);color:var(--navy);}
.btn-primary:hover{background:var(--white);transform:translateY(-2px);box-shadow:0 8px 24px rgba(184,197,214,.2);}
.btn-ghost{background:transparent;color:var(--cream);border:1px solid var(--line);}
.btn-ghost:hover{border-color:var(--light-blue);color:var(--light-blue);}

/* ── PAGE HEADER (hub / artículo) ── */
.page-head{
  padding:180px 0 60px;
  background:
    radial-gradient(ellipse at 15% 0%, rgba(184,197,214,.08) 0%, transparent 55%),
    linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 100%);
  border-bottom:1px solid var(--line);
}
@media(max-width:600px){.page-head{padding:140px 0 48px;}}

/* ── ARTICLE CARDS (grid) ── */
.articles-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
@media(max-width:900px){.articles-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:640px){.articles-grid{grid-template-columns:1fr;}}
.article-card{
  display:flex;flex-direction:column;text-decoration:none;
  background:var(--navy-2);border:1px solid var(--line);
  border-radius:6px;
  transition:transform .25s ease, border-color .25s ease;
  position:relative;overflow:hidden;height:100%;
}
.article-card-cover{
  width:100%;aspect-ratio:1200/630;object-fit:cover;display:block;
  border-bottom:1px solid var(--line);
}
.article-card-inner{padding:28px 28px;display:flex;flex-direction:column;flex:1;}
.article-card::before{
  content:'';position:absolute;top:0;left:0;bottom:0;width:3px;
  background:var(--light-blue);transform:scaleY(0);transform-origin:top;
  transition:transform .4s ease;
}
.article-card:hover{transform:translateY(-4px);border-color:var(--graphite);}
.article-card:hover::before{transform:scaleY(1);}
.article-meta{
  display:flex;gap:12px;align-items:center;flex-wrap:wrap;
  margin-bottom:16px;
}
.article-cat{
  display:inline-block;font-size:9px;letter-spacing:1.5px;text-transform:uppercase;
  padding:4px 10px;border-radius:2px;font-weight:600;
  background:rgba(184,197,214,.1);color:var(--light-blue);
  border:1px solid rgba(184,197,214,.22);
}
.article-date{font-size:11px;color:var(--smoke);letter-spacing:.5px;}
.article-card h3{
  font-family:'Playfair Display',serif;
  font-size:22px;font-weight:700;color:var(--white);
  line-height:1.25;margin-bottom:12px;
}
.article-card p{
  font-size:14px;color:var(--cream-2);line-height:1.7;
  margin-bottom:20px;flex:1;
}
.article-readmore{
  font-size:12px;font-weight:600;letter-spacing:.5px;color:var(--light-blue);
  text-transform:uppercase;display:inline-flex;align-items:center;gap:8px;
}
.article-readmore .arr{transition:transform .2s;}
.article-card:hover .article-readmore .arr{transform:translateX(4px);}

/* ── ARTICLE BODY (página individual) ── */
.article-body{padding:60px 0 100px;}
.article-hero-meta{
  display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-bottom:22px;
}
.article-title{
  font-family:'Playfair Display',serif;
  font-size:clamp(30px,5vw,52px);font-weight:900;line-height:1.08;
  letter-spacing:-1px;color:var(--white);margin-bottom:20px;
}
.article-lead{
  font-size:19px;color:var(--cream-2);line-height:1.7;font-weight:300;
  max-width:760px;
}
.article-byline{
  margin-top:28px;padding-top:24px;border-top:1px solid var(--line);
  font-size:13px;color:var(--smoke);
}
.article-byline strong{color:var(--white);font-weight:600;}

.prose{max-width:760px;}
.prose h2{
  font-family:'Playfair Display',serif;
  font-size:28px;font-weight:700;color:var(--white);
  margin:48px 0 16px;line-height:1.25;
}
.prose h3{
  font-family:'Playfair Display',serif;
  font-size:21px;font-weight:700;color:var(--white);
  margin:36px 0 12px;line-height:1.3;
}
.prose p{font-size:16px;color:var(--cream-2);line-height:1.85;margin-bottom:22px;}
.prose ul,.prose ol{margin:0 0 22px 0;padding-left:4px;list-style:none;}
.prose li{
  font-size:16px;color:var(--cream-2);line-height:1.8;padding:6px 0 6px 24px;
  position:relative;
}
.prose ul li::before{
  content:'';position:absolute;left:0;top:16px;
  width:6px;height:6px;border-radius:50%;background:var(--light-blue);
}
.prose ol{counter-reset:item;}
.prose ol li::before{
  counter-increment:item;content:counter(item);position:absolute;left:0;top:6px;
  color:var(--light-blue);font-weight:700;font-size:14px;
}
.prose strong{color:var(--white);font-weight:600;}
.prose a{color:var(--light-blue);text-decoration:underline;text-underline-offset:3px;}
.prose blockquote{
  margin:28px 0;padding:20px 28px;
  border-left:3px solid var(--light-blue);
  background:var(--navy-2);border-radius:0 6px 6px 0;
  font-family:'Playfair Display',serif;font-style:italic;
  font-size:19px;color:var(--white);line-height:1.5;
}
.prose .callout{
  margin:28px 0;padding:24px 28px;border:1px solid var(--line);
  border-radius:6px;background:var(--navy-2);
}
.prose .callout strong{color:var(--light-blue);}
.prose hr{border:none;border-top:1px solid var(--line);margin:40px 0;}

.article-disclaimer{
  max-width:760px;margin:48px auto 0;padding:22px 26px;
  border:1px solid var(--line);border-radius:6px;background:var(--navy-2);
  font-size:13px;color:var(--smoke);line-height:1.7;
}
.article-cta{
  max-width:760px;margin:40px auto 0;padding:36px 32px;text-align:center;
  border:1px solid var(--graphite);border-radius:8px;
  background:linear-gradient(135deg,var(--navy-2) 0%,#0C2040 100%);
}
.article-cta h4{
  font-family:'Playfair Display',serif;font-size:24px;color:var(--white);
  font-weight:700;margin-bottom:10px;
}
.article-cta p{font-size:14px;color:var(--cream-2);margin-bottom:22px;}

.back-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:1px;text-transform:uppercase;font-weight:600;
  color:var(--light-blue);text-decoration:none;margin-bottom:32px;
}
.back-link:hover{color:var(--white);}

/* ── EMPTY STATE ── */
.empty-state{
  text-align:center;padding:60px 0;color:var(--smoke);
  border:1px dashed var(--line);border-radius:8px;
}

/* ── FOOTER ── */
footer{
  background:var(--navy-3);padding:48px 0;
  border-top:1px solid var(--line);text-align:center;
}
footer p{font-size:12px;color:var(--smoke);letter-spacing:.5px;margin-bottom:4px;}
footer .brand{font-family:'Playfair Display',serif;color:var(--light-blue);font-weight:700;}