:root{
  --bfo-fondo:#0b1220;
  --bfo-papel:#101a2c;
  --bfo-tinta:#f4f7fb;
  --bfo-tinta-suave:#c3cedd;
  --bfo-acento:#e0561f;
  --bfo-lazo:#24354e;
  --bfo-radio:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bfo-fondo);color:var(--bfo-tinta);font-family:"Segoe UI",system-ui,-apple-system,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
a:focus-visible{outline:3px solid var(--bfo-acento);outline-offset:3px}
.bfo-salto{position:absolute;left:-999px;top:0;background:var(--bfo-acento);color:#fff;padding:.5rem 1rem;z-index:99}
.bfo-salto:focus{left:0}

/* Cabecera */
.bfo-cabecera{position:sticky;top:0;background:rgba(11,18,32,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--bfo-lazo);z-index:20}
.bfo-marco{max-width:1240px;margin:auto;display:flex;align-items:center;gap:1rem;padding:.75rem 1.25rem}
.bfo-logotipo{font-size:1.35rem;font-weight:800;letter-spacing:-.03em}
.bfo-logotipo span{color:var(--bfo-acento)}
.bfo-lema{font-size:.8rem;color:var(--bfo-tinta-suave)}
.bfo-navegacion{margin-left:auto;display:flex;gap:1rem;font-size:.9rem;font-weight:600}
.bfo-navegacion a{padding:.35rem .65rem;border-radius:999px;border:1px solid transparent}
.bfo-navegacion a:hover,.bfo-navegacion a:focus-visible{border-color:var(--bfo-acento);color:var(--bfo-acento)}

/* Hero */
.bfo-escena{position:relative;overflow:hidden;height:min(46vh,430px);display:flex;align-items:center}
.bfo-fondo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
.bfo-velo{position:absolute;inset:0;background:linear-gradient(100deg,rgba(16,26,44,.82) 0%,rgba(224,86,31,.28) 45%,rgba(11,18,32,.72) 100%);mix-blend-mode:multiply}
.bfo-escena-contenido{position:relative;max-width:1240px;width:100%;margin:auto;padding:2rem 1.25rem}
.bfo-etiqueta{text-transform:uppercase;letter-spacing:.14em;font-size:.72rem;color:var(--bfo-acento);font-weight:700}
.bfo-titulo{font-size:clamp(2rem,4.4vw,3.2rem);line-height:1.08;letter-spacing:-.04em;max-width:19ch;margin-top:.4rem}
.bfo-chapo{margin-top:.8rem;max-width:52ch;color:var(--bfo-tinta-suave);font-size:1.02rem}

/* Fil d'ariane */
.bfo-migas{max-width:1240px;margin:0 auto;padding:1rem 1.25rem 0;display:flex;flex-wrap:wrap;gap:.45rem;align-items:center;color:var(--bfo-tinta-suave);font-size:.82rem}
.bfo-migas a{color:var(--bfo-tinta)}
.bfo-migas a:hover,.bfo-migas a:focus-visible{color:var(--bfo-acento)}
.bfo-migas [aria-current="page"]{color:var(--bfo-tinta-suave)}
.bfo-intro{max-width:72ch;color:var(--bfo-tinta-suave);margin:0 0 1.2rem}
.bfo-intro a{color:var(--bfo-acento);font-weight:700}
.bfo-intro a:hover,.bfo-intro a:focus-visible{color:var(--bfo-tinta)}

/* Secciones */
main{max-width:1240px;margin:auto;padding:2rem 1.25rem 4rem}
.bfo-seccion-cabeza{display:flex;align-items:baseline;justify-content:space-between;margin:2.2rem 0 1.1rem}
h2{font-size:1.45rem;letter-spacing:-.03em}
.bfo-enlace-lateral{font-size:.85rem;color:var(--bfo-tinta-suave)}
.bfo-enlace-lateral:hover,.bfo-enlace-lateral:focus-visible{color:var(--bfo-acento)}
.bfo-malla{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.bfo-tarjeta{position:relative;display:block;height:100%;min-height:230px;border-radius:var(--bfo-radio);overflow:hidden;background:var(--bfo-papel);transition:transform .2s ease,box-shadow .2s ease}
.bfo-tarjeta:hover,.bfo-tarjeta:focus-visible{transform:translateY(-4px);box-shadow:0 12px 30px rgba(0,0,0,.35)}
.bfo-tarjeta img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.bfo-tarjeta::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(11,18,32,.92) 100%)}
.bfo-tarjeta-cuerpo{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:1rem;color:#fff}
.bfo-tarjeta-cuerpo a{display:block;color:#fff;font-size:1.08rem;font-weight:800;letter-spacing:-.02em}
.bfo-tarjeta-cuerpo a:hover,.bfo-tarjeta-cuerpo a:focus-visible{color:var(--bfo-acento)}
.bfo-tarjeta-cuerpo span:last-child{display:block;font-size:.85rem;color:var(--bfo-tinta-suave);margin-top:.15rem}

/* Artículos */
.bfo-flujo{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}
.bfo-articulo{display:grid;grid-template-columns:210px 1fr;gap:1rem;background:var(--bfo-papel);border-radius:var(--bfo-radio);overflow:hidden;border:1px solid var(--bfo-lazo)}
.bfo-articulo img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.bfo-articulo-texto{padding:1rem}
.bfo-meta{font-size:.78rem;text-transform:uppercase;letter-spacing:.09em;color:var(--bfo-tinta-suave)}
.bfo-articulo h3{margin:.4rem 0 .3rem;font-size:1.12rem;line-height:1.3;letter-spacing:-.02em}
.bfo-articulo h3 a:hover,.bfo-articulo h3 a:focus-visible{color:var(--bfo-acento)}
.bfo-resumen{font-size:.92rem;color:var(--bfo-tinta-suave)}

/* Pie */
.bfo-pie{background:#070d17;border-top:1px solid var(--bfo-lazo);text-align:center;padding:2rem 1rem;color:var(--bfo-tinta-suave);font-size:.88rem}
.bfo-pie a{color:var(--bfo-acento);font-weight:700}
.bfo-pie-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:.45rem 1rem;margin:1rem auto;max-width:900px}
.bfo-pie-nav a{font-size:.82rem}
.bfo-pie-nav a:hover,.bfo-pie-nav a:focus-visible{color:var(--bfo-tinta)}

/* Pages de confiance */
.bfo-confiance{max-width:820px;margin:auto;padding:2rem 1.25rem 4rem}
.bfo-confiance h2{margin:2rem 0 .65rem}
.bfo-confiance p,.bfo-confiance li{color:var(--bfo-tinta-suave);font-size:1rem}
.bfo-confiance p+p{margin-top:1rem}
.bfo-confiance ul{padding-left:1.2rem;margin-top:1rem}
.bfo-confiance li+li{margin-top:.55rem}
.bfo-confiance a{color:var(--bfo-acento);font-weight:700}
.bfo-confiance a:hover,.bfo-confiance a:focus-visible{color:var(--bfo-tinta)}
.bfo-confiance .bfo-meta{margin-bottom:.5rem}

@media(max-width:1080px){
 .bfo-malla{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:900px){
 .bfo-flujo{grid-template-columns:1fr}
 .bfo-marco{flex-wrap:wrap}
 .bfo-navegacion{width:100%;justify-content:flex-start}
}
@media(max-width:700px){
 .bfo-malla{grid-template-columns:repeat(2,1fr)}
 .bfo-articulo{grid-template-columns:1fr}
 .bfo-articulo img{aspect-ratio:16/9}
 .bfo-escena{height:auto;min-height:320px;padding:2.5rem 0}
 .bfo-marco{padding:.7rem 1rem}
 .bfo-lema{flex-basis:100%}
 .bfo-navegacion{gap:.45rem;font-size:.82rem;overflow-x:auto;padding-bottom:.15rem}
 main{padding-inline:1rem}
 .bfo-migas{padding-inline:1rem}
}
@media(max-width:480px){
 .bfo-malla{grid-template-columns:1fr}
 .bfo-escena-contenido{padding:1.5rem}
 .bfo-escena{min-height:300px}
 .bfo-titulo{font-size:clamp(1.8rem,10vw,2.5rem)}
 .bfo-seccion-cabeza{align-items:flex-start;gap:.75rem;flex-wrap:wrap}
 .bfo-articulo-texto{padding:.9rem}
 .bfo-confiance{padding-inline:1rem}
}