/* ============================================================
   Centinel Digital — sistema visual
   Inter informa · Abril Fatface emociona
   Marfil y azul noche de base · azul eléctrico y violeta de acento
   ============================================================ */

:root{
  --noche:#101A3A;
  --cover:#020722;
  --electrico:#245BFF;
  --electrico-osc:#1A4BE0;
  --violeta:#7137F5;
  --violeta-claro:#A98CFF;
  --marfil:#F8F7F3;
  --grafito:#182033;
  --gris:#687089;
  --linea:#E2E0DA;
  --linea-fuerte:#CBC8C0;
  --blanco:#FFFFFF;

  --dark-texto:#C2CBE4;
  --dark-tenue:#8E9BC0;
  --dark-linea:rgba(255,255,255,.14);

  --pad:clamp(20px, 5vw, 56px);
  --radio:14px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

body{
  margin:0;
  background:var(--marfil);
  color:var(--grafito);
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  font-feature-settings:"kern" 1;
  overflow-x:hidden;
}

img{max-width:100%;display:block}
a{color:var(--electrico);text-underline-offset:3px}
:focus-visible{outline:2px solid var(--electrico);outline-offset:3px;border-radius:3px}

.wrap{max-width:1120px;margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}

.skip{position:absolute;left:-9999px;top:0;background:var(--electrico);color:#fff;padding:10px 16px;
  border-radius:0 0 8px 0;z-index:200;font-weight:600;font-size:14px}
.skip:focus{left:0}

/* ---------- tipografía ---------- */
h1,h2,h3{letter-spacing:-.028em;text-wrap:balance;margin:0}
.em{font-family:"Abril Fatface",Georgia,"Times New Roman",serif;font-weight:400;letter-spacing:-.005em}
.kicker{font-size:11px;letter-spacing:.18em;text-transform:uppercase;font-weight:700;
  margin:0 0 18px;color:var(--electrico)}
.kicker.on-dark{color:var(--dark-tenue)}
h2{font-size:clamp(29px,4.6vw,50px);line-height:1.08;font-weight:800}
h2 .em{color:var(--violeta)}
.dark h2 .em{color:var(--violeta-claro)}
p{margin:0}
.lead{font-size:clamp(16.5px,1.75vw,19px);color:#3F4860;line-height:1.55;max-width:46ch}
.dark .lead{color:var(--dark-texto)}

/* ---------- botones ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-size:15.5px;font-weight:600;line-height:1;padding:17px 28px;border-radius:10px;
  border:1px solid transparent;cursor:pointer;text-decoration:none;font-family:inherit;
  transition:background .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease}
.btn-p{background:var(--electrico);color:#fff;box-shadow:0 10px 30px -14px rgba(36,91,255,.9)}
.btn-p:hover{background:var(--electrico-osc);transform:translateY(-2px);
  box-shadow:0 16px 36px -14px rgba(36,91,255,1)}
.btn-s{background:transparent;color:#fff;border-color:rgba(255,255,255,.3)}
.btn-s:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.55)}
.btn .arw{font-size:17px;line-height:0;transition:transform .18s ease}
.btn:hover .arw{transform:translateX(3px)}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.bajo-cta{margin-top:16px;font-size:13.5px;color:#7C89B0;display:flex;align-items:center;gap:8px}
.bajo-cta .pt{width:6px;height:6px;border-radius:50%;background:#4ADE80;flex-shrink:0}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:100;background:var(--cover);
  border-bottom:1px solid rgba(255,255,255,.09)}
.nav-in{display:flex;align-items:center;gap:20px;height:70px;max-width:1120px;margin:0 auto;
  padding-left:var(--pad);padding-right:var(--pad)}
.nav-logo{display:flex;align-items:center;flex-shrink:0}
.nav-logo img{height:26px;width:auto;mix-blend-mode:lighten}
.nav-cta{margin-left:auto;display:flex;align-items:center;gap:26px}
.nav-cta a:not(.btn){color:#C9D2EA;text-decoration:none;font-size:14.5px;font-weight:500}
.nav-cta a:not(.btn):hover{color:#fff}
.nav .btn{padding:12px 20px;font-size:14.5px}
@media (max-width:640px){
  .nav-cta a:not(.btn){display:none}
  .nav .btn{padding:11px 16px;font-size:14px}
}

/* ---------- secciones ---------- */
section{padding:clamp(72px,10vw,132px) 0;position:relative}
.dark{background:var(--noche);color:#fff;overflow:hidden}
.deep{background:var(--cover)}
.dark .wrap{position:relative;z-index:1}

/* flow: textura fluida inspirada en el logo */
.flow{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:0}
.flow::before,.flow::after{content:"";position:absolute;border-radius:50%;filter:blur(80px)}
.flow::before{width:min(720px,95vw);height:min(720px,95vw);right:-16%;top:-34%;
  background:radial-gradient(circle,rgba(113,55,245,.46),rgba(113,55,245,0) 66%)}
.flow::after{width:min(620px,85vw);height:min(620px,85vw);left:-18%;bottom:-38%;
  background:radial-gradient(circle,rgba(36,91,255,.38),rgba(36,91,255,0) 68%)}

/* ---------- hero ---------- */
.hero{background:var(--cover);color:#fff;overflow:hidden;
  padding:clamp(72px,11vw,124px) 0 0;display:flex;align-items:center}
.hero .wrap{width:100%}
.hero h1{font-size:clamp(38px,6.6vw,76px);line-height:1.02;font-weight:800;
  margin:0 0 26px;max-width:15ch}
.hero h1 .em{color:var(--violeta-claro)}
.hero .lead{color:var(--dark-texto);max-width:40ch;font-size:clamp(17px,2vw,21px)}
.hero .cta-row{margin-top:38px}

/* franja de datos */
.stats{margin-top:clamp(56px,8vw,88px);border-top:1px solid var(--dark-linea);
  display:grid;grid-template-columns:repeat(3,1fr);padding-bottom:clamp(48px,7vw,80px)}
.stat{padding:28px 24px 0 0}
.stat b{display:block;font-size:clamp(28px,3.6vw,42px);font-weight:800;letter-spacing:-.04em;
  color:#fff;line-height:1;
  background:linear-gradient(100deg,#fff 30%,var(--violeta-claro));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat span{display:block;margin-top:10px;font-size:13px;color:var(--dark-tenue);
  line-height:1.4;max-width:20ch}
@media (max-width:600px){
  .stats{grid-template-columns:1fr}
  .stat{padding:20px 0 0;border-top:1px solid rgba(255,255,255,.07)}
  .stat:first-child{border-top:none}
}

/* ---------- la tensión ---------- */
.tension{text-align:center}
.tension .duo{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:clamp(16px,4vw,52px);margin:0 auto clamp(32px,5vw,48px);max-width:940px}
.t-lado{font-size:clamp(24px,3.6vw,40px);font-weight:800;letter-spacing:-.03em;line-height:1.12}
.t-lado.tiene{color:var(--grafito)}
.t-lado.falta{color:var(--linea-fuerte)}
.t-nexo{width:clamp(44px,7vw,86px);height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--electrico),var(--violeta));position:relative}
.t-nexo::after{content:"";position:absolute;right:-2px;top:-4px;width:10px;height:10px;
  border-radius:50%;background:var(--violeta)}
.tension .lead{margin:0 auto;text-align:center;max-width:44ch}
@media (max-width:700px){
  .tension .duo{grid-template-columns:1fr;gap:18px}
  .t-nexo{width:2px;height:44px;margin:0 auto;
    background:linear-gradient(180deg,var(--electrico),var(--violeta))}
  .t-nexo::after{right:-4px;top:auto;bottom:-2px}
}

/* ---------- qué hacemos ---------- */
.cabecera{max-width:34ch;margin-bottom:clamp(40px,5vw,60px)}
.cabecera .lead{margin-top:18px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,1.8vw,20px)}
@media (max-width:880px){.cards{grid-template-columns:1fr}}
.card{background:var(--blanco);border:1px solid var(--linea);border-radius:var(--radio);
  padding:32px 30px 34px;position:relative;overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.card::before{content:"";position:absolute;left:0;top:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--electrico),var(--violeta));transition:width .3s ease}
.card:hover{transform:translateY(-3px);border-color:var(--linea-fuerte);
  box-shadow:0 22px 44px -28px rgba(16,26,58,.6)}
.card:hover::before{width:100%}
.card .num{font-size:11px;font-weight:700;letter-spacing:.14em;color:var(--linea-fuerte);
  margin-bottom:22px}
.card h3{font-size:clamp(20px,2.2vw,24px);font-weight:750;margin-bottom:12px;letter-spacing:-.025em}
.card p{font-size:15.5px;color:var(--gris);line-height:1.55}

/* ---------- cómo funciona ---------- */
.pasos{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,2.4vw,30px);
  position:relative;padding-top:34px}
.pasos::before{content:"";position:absolute;left:0;right:0;top:11px;height:2px;
  background:linear-gradient(90deg,var(--electrico),var(--violeta),rgba(113,55,245,.15))}
.paso{position:relative}
.paso::before{content:"";position:absolute;left:0;top:-29px;width:12px;height:12px;
  border-radius:50%;background:var(--marfil);border:2.5px solid var(--violeta)}
.paso .pn{font-size:11px;font-weight:700;letter-spacing:.14em;color:var(--violeta);margin-bottom:9px}
.paso h3{font-size:17.5px;font-weight:700;margin-bottom:7px;letter-spacing:-.02em}
.paso p{font-size:14.5px;color:var(--gris);line-height:1.5}
@media (max-width:820px){
  .pasos{grid-template-columns:1fr 1fr;gap:34px 24px}
  .pasos::before{display:none}
  .paso{padding-top:22px}
  .paso::before{top:-2px}
}
@media (max-width:520px){.pasos{grid-template-columns:1fr}}

/* ---------- el trato ---------- */
.trato{display:grid;grid-template-columns:auto 1fr;gap:clamp(28px,6vw,72px);align-items:center}
@media (max-width:820px){.trato{grid-template-columns:1fr;gap:28px}}
.cifra{font-size:clamp(88px,17vw,190px);font-weight:800;letter-spacing:-.06em;line-height:.82;
  background:linear-gradient(140deg,#fff 20%,var(--violeta-claro) 75%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  white-space:nowrap}
.cifra-pie{margin-top:14px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  font-weight:700;color:var(--dark-tenue)}
.trato h2{margin-bottom:20px}
.trato .lead{max-width:42ch}

/* ---------- cierre ---------- */
.cierre{text-align:center}
.cierre h2{font-size:clamp(32px,5.4vw,60px);margin:0 auto 22px;max-width:16ch}
.cierre .lead{margin:0 auto 38px;text-align:center;max-width:42ch}
.cierre .cta-row{justify-content:center}
.cierre .bajo-cta{justify-content:center;margin-top:22px}
.correo{display:inline-block;margin-top:30px;font-size:15px;color:var(--dark-tenue);
  text-decoration:none}
.correo b{color:#fff;font-weight:600;border-bottom:1px solid rgba(255,255,255,.3);
  padding-bottom:2px;transition:border-color .18s ease,color .18s ease}
.correo:hover b{color:var(--violeta-claro);border-bottom-color:var(--violeta-claro)}
.social{margin-top:18px}
.social a{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--dark-tenue);
  text-decoration:none;transition:color .18s ease}
.social a:hover{color:var(--violeta-claro)}
.social svg{flex-shrink:0}

/* ---------- footer ---------- */
footer{background:var(--marfil);border-top:1px solid var(--linea);
  padding:clamp(38px,5vw,52px) 0 32px}
.foot-in{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.foot-in img{width:104px}
.foot-links{display:flex;gap:22px;flex-wrap:wrap;font-size:13.5px}
.foot-links a{color:var(--gris);text-decoration:none}
.foot-links a:hover{color:var(--electrico)}
.foot-bot{margin-top:26px;padding-top:20px;border-top:1px solid var(--linea);
  font-size:12.5px;color:var(--gris)}

/* ---------- páginas legales ---------- */
.legal{padding:clamp(48px,7vw,88px) 0}
.legal .wrap{max-width:820px}
.legal h1{font-size:clamp(28px,4vw,40px);font-weight:800;margin-bottom:10px}
.legal h2{font-size:20px;margin:36px 0 10px;font-weight:700}
.legal p,.legal li{font-size:15.3px;color:#3A4358;line-height:1.7;margin:0 0 14px}
.legal ul{padding-left:20px;margin:0 0 16px}
.legal li{margin-bottom:7px}
.legal .fecha{font-size:13px;color:var(--gris)}
.legal .aviso{background:#FFF8E6;border:1px solid #F0DFA8;border-radius:10px;padding:16px 20px;margin:24px 0}
.legal .aviso p{margin:0;font-size:14px;color:#6B5A21}
.legal a{color:var(--electrico)}
.nav-legal{margin-left:auto;display:flex;gap:22px;align-items:center}
.nav-legal a:not(.btn){color:#C9D2EA;text-decoration:none;font-size:14.5px}
.nav-legal a:not(.btn):hover{color:#fff}
@media (max-width:560px){.nav-legal a:not(.btn){display:none}}