/* edufinanzas — sistema de diseño (ref. Clearbit) */
:root{
  --color-midnight-ink:#091135; --color-electric-blue:#0f77ff; --color-cobalt-surface:#127ee3;
  --color-slate:#36394a; --color-frost-border:#e1e9f0; --color-mist:#b1bbcd;
  --color-paper:#ffffff; --color-lavender-wash:#f5f3ff;
  --font:'Inter var','Inter',ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --page-max:1200px; --narrow-max:760px; --section-gap:64px; --card-pad:24px;
  --r-card:12px; --r-btn:8px; --r-tag:9999px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; font-family:var(--font); color:var(--color-midnight-ink);
  background:var(--color-paper); font-size:16px; line-height:1.5; letter-spacing:.008em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%; height:auto; display:block}
a{color:var(--color-cobalt-surface); text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:var(--page-max); margin:0 auto; padding:0 24px}
.container.narrow{max-width:var(--narrow-max)}
.center{text-align:center}
.muted{color:var(--color-slate)}
.eyebrow{font-size:14px; font-weight:500; letter-spacing:.004em; color:var(--color-midnight-ink); text-transform:none; margin:0 0 8px}
.lead{font-size:18px; line-height:1.5; color:var(--color-slate); max-width:60ch}

/* Tipografía de titulares: tracking se abre con el tamaño */
.display{font-size:clamp(40px,6vw,64px); line-height:1.25; letter-spacing:.018em; font-weight:600; margin:0 0 20px}
.h-lg{font-size:clamp(32px,4.5vw,56px); line-height:1.25; letter-spacing:.016em; font-weight:600; margin:0 0 16px}
.h-sm{font-size:32px; line-height:1.25; letter-spacing:.012em; font-weight:600; margin:0 0 24px}
h1,h2,h3,h4{color:var(--color-midnight-ink)}

/* Header */
.site-header{position:sticky; top:0; z-index:20; background:rgba(255,255,255,.9); backdrop-filter:saturate(1.4) blur(8px)}
.header-inner{display:flex; align-items:center; justify-content:space-between; padding:12px 24px}
.brand-mark{height:34px; width:auto}
.nav{display:flex; align-items:center; gap:16px}
.nav-menu{display:flex; gap:20px; list-style:none; margin:0; padding:0}
.nav-menu a{color:var(--color-midnight-ink); font-size:15px; font-weight:500}
.nav-menu a:hover{color:var(--color-cobalt-surface); text-decoration:none}
.nav-toggle{display:none; border:1px solid var(--color-frost-border); background:#fff; border-radius:var(--r-btn); padding:8px 12px; font:inherit; font-weight:500; cursor:pointer}

/* Botones */
.btn{display:inline-block; border-radius:var(--r-btn); padding:12px 20px; font-weight:500; font-size:16px; cursor:pointer; border:1px solid transparent; transition:.15s}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--color-cobalt-surface); color:#fff}
.btn-primary:hover{background:#0f6fca}
.btn-ghost{background:transparent; border-color:var(--color-frost-border); color:var(--color-midnight-ink)}
.btn-ghost:hover{border-color:var(--color-mist)}
.btn:focus-visible,a:focus-visible,button:focus-visible,iframe:focus-visible{outline:none; box-shadow:0 0 0 1px var(--color-electric-blue),0 6px 16px rgba(12,43,100,.32)}

/* Secciones */
.section{padding:var(--section-gap) 0}
.section-wash{background:var(--color-lavender-wash)}
.hero{padding:80px 0 48px}
.hero-inner{max-width:820px}
.hero .lead{margin:0 0 32px}
.hero-cta{display:flex; gap:12px; flex-wrap:wrap}

/* Tarjetas */
.card{background:var(--color-paper); border:1px solid var(--color-frost-border); border-radius:var(--r-card); padding:var(--card-pad)}
.card-link{display:block; color:inherit; transition:border-color .15s}
.card-link:hover{border-color:var(--color-electric-blue); text-decoration:none}
.card h3{margin:0 0 8px; font-size:18px; letter-spacing:.004em}
.card .muted{font-size:15px; margin:0}
.card-arrow{display:inline-block; margin-top:16px; color:var(--color-cobalt-surface); font-weight:500; font-size:15px}
.grid{display:grid; gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}

/* Etiquetas / pills */
.tag,.pill{display:inline-block; background:var(--color-lavender-wash); color:var(--color-midnight-ink); font-size:14px; font-weight:500; border-radius:var(--r-tag); padding:4px 12px; margin-bottom:12px}
.pill{padding:8px 16px; margin:0}

/* Comparador */
.comparador{margin-bottom:24px}
.comparador-head{display:flex; align-items:center; gap:12px; flex-wrap:wrap; margin-bottom:16px}
.comparador-head h2{margin:0; font-size:24px}
.comparador-note{font-size:13px; margin:12px 0 0}

/* Artículo / prosa */
.breadcrumb{display:flex; gap:8px; font-size:14px; color:var(--color-slate); margin-bottom:16px}
.breadcrumb a{color:var(--color-slate)}
.article-meta{font-size:14px; margin:0 0 24px}
.article-hero{border-radius:var(--r-card); border:1px solid var(--color-frost-border); margin:0 0 32px}
.prose{font-size:17px; line-height:1.65; color:#1c2438}
.prose h2{font-size:28px; letter-spacing:.008em; margin:40px 0 16px}
.prose h3{font-size:22px; margin:32px 0 12px}
.prose p{margin:0 0 20px}
.prose ul,.prose ol{margin:0 0 20px; padding-left:22px}
.prose li{margin:6px 0}
.prose a{color:var(--color-cobalt-surface); text-decoration:underline}
.prose img{border-radius:var(--r-card); border:1px solid var(--color-frost-border); margin:24px 0}
.prose blockquote{margin:24px 0; padding:12px 20px; border-left:3px solid var(--color-electric-blue); background:var(--color-lavender-wash); border-radius:0 var(--r-btn) var(--r-btn) 0; color:var(--color-slate)}
.prose code{background:var(--color-lavender-wash); padding:2px 6px; border-radius:6px; font-size:.9em}
.prose pre{background:#0b1230; color:#e6ebff; padding:16px; border-radius:var(--r-card); overflow:auto}
.prose pre code{background:none; color:inherit; padding:0}
.article-cta{margin-top:40px; background:var(--color-lavender-wash); border-color:transparent}
.article-cta h2{margin:0 0 8px; font-size:22px}
.article-cta p{margin:0 0 16px}

/* Footer */
.site-footer{border-top:1px solid var(--color-frost-border); padding:48px 0 32px; margin-top:24px}
.footer-grid{display:flex; justify-content:space-between; gap:48px; flex-wrap:wrap}
.footer-cols{display:flex; gap:64px; flex-wrap:wrap}
.footer-cols h3{font-size:14px; letter-spacing:.02em; text-transform:uppercase; color:var(--color-slate); margin:0 0 12px}
.footer-cols ul{list-style:none; margin:0; padding:0}
.footer-cols li{margin:8px 0}
.footer-cols a{color:var(--color-midnight-ink); font-size:15px}
.footer-brand .muted{margin:12px 0 0; max-width:28ch}
.footer-legal{margin-top:32px; padding-top:24px; border-top:1px solid var(--color-frost-border)}
.footer-legal .muted{font-size:13px}

/* Responsive */
@media(max-width:900px){ .grid-3{grid-template-columns:1fr 1fr} }
@media(max-width:720px){
  .grid-3{grid-template-columns:1fr}
  .nav-toggle{display:block}
  .nav-menu{position:absolute; left:0; right:0; top:100%; flex-direction:column; gap:0; background:#fff; border-bottom:1px solid var(--color-frost-border); padding:8px 24px; display:none}
  .nav-menu.open{display:flex}
  .nav-menu li{padding:8px 0}
  .footer-cols{gap:32px}
}

/* Zona de comparador (FinanceAds) */
.comparador-zone{padding:32px 0}
.comparador-live{background:#fff; border:1px solid var(--color-frost-border); border-radius:var(--r-card); padding:16px 20px; overflow-x:auto; max-width:920px; margin:0 auto}
.comparador-note{font-size:13px; margin:16px auto 0; max-width:920px}

/* Hero dos columnas + tarjeta flotante */
.hero-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:48px; align-items:center}
.hero-copy .lead{margin:0 0 32px}
.hero-visual{display:flex; justify-content:center}
.hero-card{width:100%; max-width:380px; background:#fff; border:1px solid var(--color-frost-border); border-radius:var(--r-card); padding:18px 20px}
.hero-card-head{display:flex; align-items:center; justify-content:space-between; margin-bottom:12px}
.hero-card-title{font-weight:600; font-size:15px; color:var(--color-midnight-ink)}
.hero-card-badge{font-size:12px; font-weight:600; color:var(--color-cobalt-surface); background:var(--color-lavender-wash); border-radius:var(--r-tag); padding:3px 10px}
.hero-card-row{display:grid; grid-template-columns:1fr auto auto; align-items:center; gap:12px; padding:10px 0; border-top:1px solid var(--color-frost-border); font-size:14px}
.hcr-name{color:var(--color-midnight-ink); font-weight:500}
.hcr-tae{color:var(--color-midnight-ink); font-weight:600}
.hcr-cta{font-size:12px; font-weight:600; color:#fff; background:var(--color-cobalt-surface); border-radius:var(--r-btn); padding:5px 10px}
.hero-card-foot{margin-top:12px; font-size:12px; color:var(--color-mist)}

/* Tarjetas de guía con miniatura */
.card-guide{padding:0; overflow:hidden}
.card-guide .thumb-svg{width:100%; height:150px; display:block; border-bottom:1px solid var(--color-frost-border)}
.card-guide .card-body{padding:20px 24px}
.card-guide h3{margin:0 0 8px; font-size:18px}

/* Imagen destacada SVG en artículo */
.article-hero-svg{padding:0; border:1px solid var(--color-frost-border); overflow:hidden}
.article-hero-svg .thumb-svg{width:100%; height:220px; display:block}

@media(max-width:820px){
  .hero-grid{grid-template-columns:1fr; gap:28px}
  .hero-visual{order:2}
}