:root{
  --azul:#0b4f8a;
  --azul2:#087fbf;
  --celeste:#15b8d4;
  --oscuro:#07172f;
  --texto:#172033;
  --gris:#64748b;
  --fondo:#f4f8fc;
  --blanco:#ffffff;
  --amarillo:#facc15;
  --verde:#22c55e;
  --radio:26px;
  --sombra:0 24px 70px rgba(15,23,42,.16);
  --sombra-suave:0 14px 38px rgba(15,23,42,.08);
  --max:1180px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:Arial, Helvetica, sans-serif;
  background:var(--fondo);
  color:var(--texto);
  line-height:1.6;
  overflow-x:hidden;
}
img,svg{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button,input,textarea{font:inherit}
.container{width:min(100% - 32px, var(--max));margin-inline:auto}

.topbar{background:var(--oscuro);color:#dbeafe;font-size:14px}
.topbar .container{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:14px;
  padding:8px 0;
  flex-wrap:wrap;
}

.header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(226,232,240,.9);
  box-shadow:0 10px 28px rgba(15,23,42,.06);
}
.header-inner{
  min-height:76px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
}
.brand{display:flex;align-items:center;gap:12px;font-weight:900;color:var(--azul);letter-spacing:-.3px}
.brand-mark{
  width:46px;height:46px;border-radius:16px;display:grid;place-items:center;color:white;
  background:linear-gradient(135deg,var(--azul),var(--celeste));
  box-shadow:0 14px 30px rgba(8,127,191,.28);
}
.brand-logo{
  width:54px;
  height:54px;
  object-fit:contain;
  border-radius:14px;
  background:white;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:21px}
.brand-text span{font-size:12px;color:var(--gris);font-weight:800}

.nav{display:flex;align-items:center;gap:24px;font-weight:800;color:#334155}
.nav a{font-size:15px}
.nav a:hover{color:var(--azul)}
.nav-cta{background:var(--azul);color:white!important;padding:11px 18px;border-radius:999px;box-shadow:0 12px 26px rgba(11,79,138,.24)}
.menu-btn{
  display:none;width:46px;height:46px;border:none;border-radius:14px;background:#eff6ff;color:var(--azul);
  cursor:pointer;font-size:24px;font-weight:900;
}

.hero{
  position:relative;overflow:hidden;color:white;
  background:
    radial-gradient(circle at 80% 12%, rgba(250,204,21,.32), transparent 25%),
    radial-gradient(circle at 20% 88%, rgba(21,184,212,.24), transparent 28%),
    linear-gradient(135deg,#061a35 0%, #0b4f8a 52%, #05a6c8 100%);
}
.hero:before{
  content:"";position:absolute;width:520px;height:520px;border:80px solid rgba(255,255,255,.08);
  border-radius:50%;right:-190px;bottom:-220px;
}
.hero-grid{
  position:relative;z-index:1;min-height:calc(100vh - 112px);
  display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:48px;padding:76px 0;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.22);color:#eff6ff;border-radius:999px;
  padding:9px 14px;font-weight:900;margin-bottom:22px;
}
.hero h1{font-size:clamp(38px,6vw,72px);line-height:1.02;letter-spacing:-2.2px;max-width:760px;margin-bottom:20px}
.hero p{font-size:clamp(17px,2vw,21px);color:#dbeafe;max-width:660px;margin-bottom:30px}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:24px}
.btn{
  min-height:52px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 22px;
  border-radius:16px;font-weight:900;border:none;cursor:pointer;transition:.22s ease;text-align:center;
}
.btn:hover{transform:translateY(-2px)}
.btn-yellow{background:var(--amarillo);color:#111827;box-shadow:0 16px 38px rgba(250,204,21,.25)}
.btn-white{background:white;color:var(--azul)}
.trust-row{display:flex;gap:12px;flex-wrap:wrap;color:#e0f2fe;font-weight:800;font-size:15px}
.trust-pill{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:7px 11px}

.visual-wrap{position:relative}
.dashboard-card{
  background:rgba(255,255,255,.96);color:var(--texto);border-radius:34px;padding:22px;
  box-shadow:var(--sombra);transform:rotate(1deg);
}
.dashboard-head{
  background:linear-gradient(135deg,var(--azul),var(--celeste));color:white;border-radius:25px;
  padding:24px;margin-bottom:16px;
}
.dashboard-head h3{font-size:clamp(22px,3vw,28px);line-height:1.1;margin-bottom:7px}
.progress-line{height:12px;background:#e2e8f0;border-radius:999px;overflow:hidden;margin-top:14px}
.progress-line span{display:block;width:78%;height:100%;background:var(--verde)}
.dash-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.dash-item{background:#f8fafc;border:1px solid #e2e8f0;border-radius:20px;padding:17px}
.dash-item strong{display:block;color:var(--azul);font-size:26px;line-height:1;margin-bottom:5px}
.float-card{
  position:absolute;left:-28px;bottom:34px;background:white;color:#0f172a;border-radius:19px;
  padding:15px 18px;font-weight:900;box-shadow:0 20px 50px rgba(15,23,42,.22);
}

section{padding:82px 0}
.section-title{max-width:790px;margin:0 auto 42px;text-align:center}
.section-title .label{color:var(--azul2);font-weight:900;text-transform:uppercase;letter-spacing:.8px;font-size:13px}
.section-title h2{color:#0f172a;font-size:clamp(30px,4.4vw,48px);line-height:1.12;letter-spacing:-1.2px;margin:8px 0 12px}
.section-title p{color:var(--gris);font-size:18px}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:-42px;position:relative;z-index:3}
.stat{background:white;border:1px solid #e2e8f0;box-shadow:var(--sombra-suave);border-radius:22px;padding:24px;text-align:center}
.stat strong{display:block;color:var(--azul);font-size:34px;line-height:1;margin-bottom:8px}
.stat span{color:var(--gris);font-weight:800;font-size:14px}

.courses{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.course{
  position:relative;overflow:hidden;background:white;border:1px solid #e2e8f0;border-radius:var(--radio);
  padding:28px;box-shadow:var(--sombra-suave);transition:.24s ease;
}
.course:hover{transform:translateY(-6px);box-shadow:var(--sombra)}
.course:before{content:"";position:absolute;top:-70px;right:-70px;width:154px;height:154px;border-radius:50%;background:#e0f2fe}
.tag{position:relative;display:inline-flex;background:#e0f2fe;color:#0369a1;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:900;margin-bottom:16px}
.course h3{position:relative;font-size:26px;color:var(--azul);line-height:1.1;margin-bottom:10px}
.price{position:relative;color:#111827;background:#fef3c7;display:inline-flex;padding:7px 12px;border-radius:999px;font-weight:900;margin-bottom:14px}
.course p{position:relative;color:#475569;margin-bottom:18px}
.course ul{position:relative;list-style:none;display:grid;gap:8px;margin-bottom:22px;color:#334155;font-weight:700}
.course-link{position:relative;color:var(--azul);font-weight:900}

.platform-box{
  background:#0f172a;color:white;border-radius:40px;padding:56px;
  display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;align-items:center;overflow:hidden;position:relative;box-shadow:var(--sombra);
}
.platform-box:before{content:"";position:absolute;right:-100px;top:-120px;width:350px;height:350px;border-radius:50%;background:rgba(21,184,212,.23)}
.platform-box .content{position:relative;z-index:2}
.platform-box h2{font-size:clamp(30px,4.2vw,46px);line-height:1.08;margin:12px 0 16px}
.platform-box p{color:#cbd5e1;font-size:18px;margin-bottom:24px}
.laptop{position:relative;z-index:2;background:white;color:#0f172a;border-radius:26px;padding:18px;box-shadow:0 24px 70px rgba(0,0,0,.25)}
.browser-dots{display:flex;gap:7px;margin-bottom:14px}
.dot{width:11px;height:11px;border-radius:50%;background:#cbd5e1}
.module{
  display:flex;justify-content:space-between;gap:12px;align-items:center;padding:15px;border-radius:16px;
  border:1px solid #e2e8f0;background:#f8fafc;margin-bottom:10px;font-size:15px;
}
.module b{color:var(--azul)}
.module span{white-space:nowrap;color:#475569;font-weight:900}
.module .ok{color:var(--verde)}

.background-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.background-item{background:white;border:1px solid #e2e8f0;border-radius:22px;padding:22px;box-shadow:var(--sombra-suave)}
.background-item span{display:block;color:var(--gris);font-weight:900;font-size:13px;margin-bottom:6px}
.background-item strong{color:var(--azul);font-size:18px}

.benefits{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.benefit{background:white;border-radius:22px;border:1px solid #e2e8f0;padding:24px;box-shadow:var(--sombra-suave)}
.benefit .icon{width:48px;height:48px;border-radius:16px;background:#eff6ff;color:var(--azul);display:grid;place-items:center;font-size:24px;margin-bottom:14px}
.benefit h3{margin-bottom:8px;color:#0f172a}
.benefit p{color:var(--gris);font-size:15px}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{background:white;border:1px solid #e2e8f0;border-radius:22px;padding:24px;box-shadow:var(--sombra-suave)}
.num{width:44px;height:44px;border-radius:15px;background:linear-gradient(135deg,var(--azul),var(--celeste));color:white;display:grid;place-items:center;font-weight:900;margin-bottom:14px}
.step h3{margin-bottom:8px;color:#0f172a}
.step p{color:var(--gris);font-size:15px}

.contact-grid{display:grid;grid-template-columns:1fr .85fr;gap:24px;align-items:stretch}
.cta-card{background:linear-gradient(135deg,var(--azul),var(--celeste));color:white;border-radius:38px;padding:46px;box-shadow:var(--sombra)}
.cta-card h2{font-size:clamp(30px,4vw,46px);line-height:1.08;margin-bottom:12px}
.cta-card p{color:#e0f2fe;font-size:18px;margin-bottom:24px}
.info-card{background:white;border:1px solid #e2e8f0;border-radius:32px;padding:32px;box-shadow:var(--sombra-suave)}
.info-list{display:grid;gap:14px;margin-top:16px}
.info-list div{padding:14px;background:#f8fafc;border:1px solid #e2e8f0;border-radius:18px;font-weight:800;color:#334155}

footer{background:#07172f;color:#cbd5e1;padding:34px 0}
footer .container{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
footer strong{color:white}
.wsp{
  position:fixed;right:20px;bottom:20px;z-index:90;background:var(--verde);color:white;
  min-height:54px;padding:14px 20px;border-radius:999px;display:flex;align-items:center;gap:8px;
  font-weight:900;box-shadow:0 18px 44px rgba(34,197,94,.36);
}

@media(max-width:1020px){
  .hero-grid{grid-template-columns:1fr;min-height:auto;padding:62px 0}
  .visual-wrap{max-width:620px;margin:auto}
  .stats,.benefits,.background-grid{grid-template-columns:repeat(2,1fr)}
  .courses{grid-template-columns:1fr 1fr}
  .platform-box,.contact-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .topbar .container{justify-content:center;text-align:center}
  .menu-btn{display:grid;place-items:center}
  .nav{
    position:absolute;left:16px;right:16px;top:84px;background:white;border:1px solid #e2e8f0;
    border-radius:22px;padding:16px;box-shadow:var(--sombra);display:none;flex-direction:column;align-items:stretch;gap:8px;
  }
  .nav.open{display:flex}
  .nav a{padding:12px 14px;border-radius:14px}
  .nav a:hover{background:#eff6ff}
  .nav-cta{text-align:center}
  .hero h1{letter-spacing:-1.2px}
  .hero-actions .btn{width:100%}
  .dashboard-card{transform:none}
  .float-card{left:12px;bottom:18px}
  .stats,.courses,.benefits,.steps,.background-grid{grid-template-columns:1fr}
  .platform-box{padding:30px 20px;border-radius:28px}
  .module{align-items:flex-start;flex-direction:column}
  .cta-card,.info-card{padding:28px 20px;border-radius:28px}
  footer .container{text-align:center;justify-content:center}
  .wsp{left:16px;right:16px;bottom:16px;justify-content:center}
}
@media(max-width:420px){
  .container{width:min(100% - 22px, var(--max))}
  .brand-text strong{font-size:18px}
  .brand-mark{width:42px;height:42px}
  .brand-logo{width:46px;height:46px}
  .header-inner{min-height:68px}
  .hero-grid{padding:46px 0}
  section{padding:62px 0}
  .dash-grid{grid-template-columns:1fr}
}