:root{
  --navy:#0D1F3C;--navy2:#1A3A6B;--oro:#C9A84C;--oro2:#E4C77A;
  --tinta:#14213D;--gris:#5B6475;--borde:#E4E8F0;--fondo:#F5F7FB;--blanco:#fff;
  --radio:18px;--sombra:0 10px 30px rgba(13,31,60,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--tinta);background:var(--blanco);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--navy2)}
.envoltura{max-width:1120px;margin:0 auto;padding:0 20px}

/* Cabecera */
.cabecera{position:sticky;top:0;z-index:20;background:rgba(13,31,60,.96);backdrop-filter:saturate(1.4) blur(8px)}
.cabecera .envoltura{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.marca{display:flex;align-items:center;gap:10px;color:var(--blanco);text-decoration:none;font-weight:800;letter-spacing:.5px}
.marca img{width:34px;height:34px}
.marca span b{color:var(--oro)}
.menu{display:flex;align-items:center;gap:22px}
.menu a{color:#D7E0F0;text-decoration:none;font-size:15px}
.menu a:hover{color:var(--blanco)}
.menu .ocultar-movil{display:inline}
@media (max-width:820px){.menu .ocultar-movil{display:none}}

/* Botones */
.boton{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:12px;font-weight:700;text-decoration:none;font-size:16px;transition:transform .15s,box-shadow .15s;border:0;cursor:pointer}
.boton:hover{transform:translateY(-1px)}
.boton-oro{background:var(--oro);color:var(--navy)!important;box-shadow:0 6px 18px rgba(201,168,76,.35)}
.boton-oro:hover{background:var(--oro2)}
.boton-borde{border:1.5px solid rgba(255,255,255,.45);color:var(--blanco)!important}
.boton-chico{padding:9px 16px;font-size:14px;border-radius:10px}

/* Hero */
.hero{background:linear-gradient(135deg,var(--navy),var(--navy2));color:var(--blanco);padding:72px 0 84px;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(201,168,76,.22),transparent 70%)}
.hero .envoltura{position:relative;z-index:1}
.etiqueta{display:inline-block;background:rgba(201,168,76,.16);color:var(--oro2);border:1px solid rgba(201,168,76,.4);padding:6px 12px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:.4px}
.hero h1{font-size:clamp(32px,5.2vw,54px);line-height:1.12;margin:18px 0 16px;max-width:820px}
.hero h1 em{font-style:normal;color:var(--oro)}
.hero p.sub{font-size:clamp(17px,2vw,20px);color:#D7E0F0;max-width:700px;margin:0 0 30px}
.acciones{display:flex;flex-wrap:wrap;gap:12px}
.datos{display:flex;flex-wrap:wrap;gap:28px;margin-top:40px}
.datos div{min-width:120px}
.datos b{display:block;font-size:28px;color:var(--oro)}
.datos span{color:#C3CEE2;font-size:14px}

/* Secciones */
section{padding:72px 0}
.gris{background:var(--fondo)}
h2{font-size:clamp(26px,3.4vw,38px);line-height:1.2;margin:0 0 12px}
.intro{color:var(--gris);font-size:18px;max-width:720px;margin:0 0 36px}
.rejilla{display:grid;gap:20px}
.r3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.r2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.tarjeta{background:var(--blanco);border:1px solid var(--borde);border-radius:var(--radio);padding:26px;box-shadow:var(--sombra)}
.tarjeta h3{margin:12px 0 8px;font-size:20px}
.tarjeta p{margin:0;color:var(--gris)}
.icono{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-size:24px;background:linear-gradient(135deg,var(--navy),var(--navy2))}
.carrera{display:flex;flex-direction:column;text-decoration:none;color:inherit;transition:transform .15s}
.carrera:hover{transform:translateY(-3px)}
.carrera .mas{margin-top:16px;font-weight:700;color:var(--navy2)}

/* Pasos */
.pasos{counter-reset:paso}
.paso{position:relative;padding-left:62px}
.paso:before{counter-increment:paso;content:counter(paso);position:absolute;left:0;top:0;width:44px;height:44px;border-radius:50%;background:var(--oro);color:var(--navy);font-weight:800;display:grid;place-items:center;font-size:18px}
.paso h3{margin:4px 0 6px;font-size:19px}
.paso p{margin:0;color:var(--gris)}

/* Precios */
.plan{display:flex;flex-direction:column}
.plan .precio{font-size:42px;font-weight:800;margin:6px 0 2px}
.plan .precio small{font-size:16px;color:var(--gris);font-weight:600}
.plan ul{list-style:none;padding:0;margin:18px 0 24px;flex:1}
.plan li{padding:7px 0 7px 28px;position:relative;color:var(--tinta)}
.plan li:before{content:"✓";position:absolute;left:0;color:#1F9D55;font-weight:800}
.plan li.no{color:var(--gris)}
.plan li.no:before{content:"–";color:#A0A8B8}
.plan.destacado{border:2px solid var(--oro);position:relative}
.plan.destacado .cinta{position:absolute;top:-13px;right:20px;background:var(--oro);color:var(--navy);font-size:12px;font-weight:800;padding:4px 10px;border-radius:999px}
.plan .boton{width:100%}
.boton-navy{background:var(--navy);color:var(--blanco)!important}

/* Materias */
.materias{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.materias li{background:var(--blanco);border:1px solid var(--borde);border-radius:999px;padding:6px 14px;font-size:14px}

/* FAQ */
.faq details{background:var(--blanco);border:1px solid var(--borde);border-radius:14px;padding:4px 20px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:700;padding:14px 0;list-style:none;position:relative;padding-right:30px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:0;top:10px;font-size:24px;color:var(--navy2)}
.faq details[open] summary:after{content:"–"}
.faq details p{margin:0 0 16px;color:var(--gris)}

/* CTA final */
.cta{background:linear-gradient(135deg,var(--navy),var(--navy2));color:var(--blanco);text-align:center;border-radius:24px;padding:52px 24px}
.cta p{color:#D7E0F0;font-size:18px;margin:0 0 26px}

/* Pie */
.pie{background:var(--navy);color:#AEB9CF;padding:44px 0 30px;font-size:14px}
.pie .envoltura{display:grid;gap:28px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.pie h4{color:var(--blanco);margin:0 0 10px;font-size:15px}
.pie a{color:#D7E0F0;text-decoration:none;display:block;padding:3px 0}
.pie a:hover{color:var(--oro)}
.pie .legal{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.1);padding-top:18px;font-size:13px}

/* Migas */
.migas{font-size:14px;color:#C3CEE2;margin-bottom:6px}
.migas a{color:#C3CEE2}

/* Cookies */
.cookies{position:fixed;left:16px;right:16px;bottom:16px;z-index:50;max-width:560px;margin:0 auto;background:var(--blanco);border:1px solid var(--borde);border-radius:16px;box-shadow:0 12px 40px rgba(13,31,60,.25);padding:18px 20px;display:none}
.cookies p{margin:0 0 12px;font-size:14px;color:var(--gris)}
.cookies .acciones{gap:10px}
.cookies button{font:inherit}
.boton-gris{background:var(--fondo);color:var(--tinta)}

/* Ajustes para celular */
.marca span,.boton{white-space:nowrap}
@media (max-width:420px){
  .cabecera .envoltura{padding:0 14px}
  .marca{gap:8px}.marca img{width:30px;height:30px}.marca span{font-size:15px}
  .menu{gap:12px}.menu a{font-size:14px}
  .boton-chico{padding:8px 12px;font-size:13px}
  .hero{padding:48px 0 60px}
  .hero .acciones .boton,.cta .acciones .boton{flex:1 1 100%}
  .menu a:not(.boton){display:none}
}