:root{
  --petrol:#1B4E5E;
  --petrol-dark:#123740;
  --teal:#00AAB8;
  --teal-soft:#E3F4F6;
  --ink:#1A2326;
  --muted:#5B7077;
  --line:#E3EAEB;
  --paper:#EFF6F6;
  --gold:#E8A435;
  --gold-dark:#B97A1C;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Inter',-apple-system,"Segoe UI",sans-serif;
  color:var(--ink);
  background:#fff;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:'Fraunces',Georgia,serif;color:var(--petrol);margin:0 0 .5em;font-weight:600;}
p{margin:0 0 1em;}
a{color:inherit;}
img{max-width:100%;display:block;}
.container{max-width:1100px;margin:0 auto;padding:0 24px;}
.container-narrow{max-width:760px;margin:0 auto;padding:0 24px;}

/* ---------- nav simple ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);}
.nav-inner{max-width:1100px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;}
.nav-brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:'Fraunces',serif;font-weight:600;color:var(--petrol);font-size:16px;}
.nav-brand img{width:34px;height:34px;}
.nav-brand small{display:block;font-family:'Inter',sans-serif;font-weight:600;font-size:11px;color:var(--teal);letter-spacing:.04em;text-transform:uppercase;}
.nav-back{font-size:13px;color:var(--muted);text-decoration:none;font-weight:600;display:flex;align-items:center;gap:6px;}
.nav-back:hover{color:var(--teal);}

/* ---------- eyebrow ---------- */
.eyebrow{
  font-family:'Inter',sans-serif;font-size:12.5px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--teal);display:inline-block;margin-bottom:14px;
}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,#0B2B30,#0E3239 65%,#0B2B30);
  padding:48px 0 40px;color:#fff;
}
.hero-spiral-bg{
  position:absolute;top:50%;right:-6%;transform:translateY(-50%);width:640px;height:640px;
  opacity:.16;pointer-events:none;z-index:0;
}
.hero-spiral-bg-small{
  position:absolute;bottom:-18%;left:-4%;width:260px;height:260px;opacity:.1;pointer-events:none;z-index:0;
  transform:rotate(35deg);
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:center;}
.hero h1{color:#fff;font-size:clamp(26px,3.6vw,38px);line-height:1.16;margin-bottom:12px;}
.hero .lede{color:rgba(255,255,255,.82);font-size:15px;max-width:52ch;margin-bottom:18px;}
.hero-mascot{justify-self:center;width:150px;opacity:.95;filter:drop-shadow(0 20px 40px rgba(0,0,0,.35));}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:14px;}
.hero-meta span{font-size:12px;color:rgba(255,255,255,.7);display:flex;align-items:center;gap:6px;}
.hero-meta strong{color:#fff;}
.hero-cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:2px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;font-family:'Inter',sans-serif;font-weight:700;
  font-size:14.5px;padding:13px 24px;border-radius:12px;text-decoration:none;border:none;cursor:pointer;
  background:linear-gradient(160deg,var(--teal),var(--petrol));color:#fff;transition:transform .2s,box-shadow .2s;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 26px -12px rgba(0,0,0,.45);}
.btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55);}
.btn-outline:hover{background:rgba(255,255,255,.1);box-shadow:none;}
.btn-disabled{background:var(--line)!important;color:var(--muted)!important;cursor:not-allowed;box-shadow:none!important;transform:none!important;}
.btn-full{width:100%;justify-content:center;}

/* ---------- sections ---------- */
.section{padding:44px 0;}
.section-alt{padding:44px 0;background:var(--paper);position:relative;overflow:hidden;}
.section-alt-spiral{
  position:absolute;top:-10%;right:6%;width:220px;height:220px;opacity:.07;pointer-events:none;
  transform:rotate(-18deg);z-index:0;
}
.section-alt .container{position:relative;z-index:1;}
.section-head{max-width:640px;margin:0 auto 28px;text-align:center;}
.section-head h2{font-size:clamp(21px,2.6vw,27px);margin-bottom:8px;}
.section-head p{color:var(--muted);font-size:14.5px;margin:0;}

/* ---------- info grid (a quien va dirigido / que vas a aprender) ---------- */
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.info-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 22px;}
.info-card h3{font-size:16.5px;display:flex;align-items:center;gap:8px;margin-bottom:10px;}
.info-card ul{margin:0;padding-left:18px;color:var(--muted);font-size:13.5px;}
.info-card li{margin-bottom:5px;}

/* ---------- modulos ---------- */
.mod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.mod-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:0;overflow:hidden;}
.mod-card summary{
  list-style:none;cursor:pointer;padding:13px 18px;display:flex;align-items:center;gap:12px;
}
.mod-card summary::-webkit-details-marker{display:none;}
.mod-num{
  font-family:'Fraunces',serif;font-weight:600;font-size:15px;color:var(--teal);
  width:34px;height:34px;border:1.5px solid var(--teal-soft);border-radius:50%;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;background:var(--teal-soft);
}
.mod-title{flex:1;}
.mod-title strong{display:block;font-size:15px;color:var(--petrol);}
.mod-title span{font-size:12px;color:var(--muted);}
.mod-level{
  font-size:10.5px;font-weight:700;letter-spacing:.03em;padding:4px 9px;border-radius:999px;
  white-space:nowrap;
}
.mod-chevron{transition:transform .25s;color:var(--muted);flex-shrink:0;}
.mod-card[open] .mod-chevron{transform:rotate(180deg);}
.mod-body{padding:0 18px 16px 62px;font-size:13px;color:var(--muted);}
.mod-body ul{margin:4px 0 0;padding-left:16px;}
.mod-body li{margin-bottom:4px;}

/* ---------- niveles: escala de degradado, no pastillas sueltas ---------- */
.niv-pill{font-size:11px;font-weight:700;padding:5px 11px;border-radius:999px;background:var(--teal-soft);color:var(--petrol);white-space:nowrap;}
.niv-note{max-width:56ch;margin:20px auto 18px;text-align:center;font-size:13px;color:var(--muted);}
.niv-scale{max-width:640px;margin:0 auto;}
.niv-scale-track{display:flex;height:10px;border-radius:99px;overflow:hidden;box-shadow:inset 0 1px 3px rgba(0,0,0,.08);}
.niv-scale-seg{flex:1;}
.niv-scale-labels{display:flex;margin-top:10px;}
.niv-scale-labels span{flex:1;text-align:center;font-size:11px;font-weight:700;color:var(--muted);}
.niv-scale-labels span b{display:block;color:var(--petrol);font-size:12.5px;font-family:'Fraunces',serif;}

/* ---------- cómo funciona: flujo numerado y conectado ---------- */
.flow-row{display:flex;align-items:flex-start;gap:0;}
.flow-step{flex:1;text-align:center;padding:0 10px;position:relative;}
.flow-connector{width:40px;height:1px;background:var(--line);margin-top:20px;flex-shrink:0;}
.flow-num{
  width:26px;height:26px;border-radius:50%;background:var(--petrol);color:#fff;
  display:flex;align-items:center;justify-content:center;font-family:'Fraunces',serif;font-weight:600;font-size:12px;
  margin:0 auto 12px;
}
.flow-icon{
  width:44px;height:44px;border-radius:13px;border:1.5px solid var(--teal-soft);color:var(--teal);
  display:flex;align-items:center;justify-content:center;margin:0 auto 12px;background:#fff;
}
.flow-step h4{font-size:13.5px;margin-bottom:5px;color:var(--petrol);}
.flow-step p{font-size:12px;color:var(--muted);margin:0;line-height:1.55;}

/* ---------- precio ---------- */
.price-card{
  background:linear-gradient(155deg,var(--petrol-dark),var(--petrol));color:#fff;border-radius:20px;
  padding:32px 40px;display:block;text-align:center;
}
.price-card h3{color:#fff;font-size:20px;margin-bottom:8px;}
.price-card p{color:rgba(255,255,255,.75);font-size:14px;margin:0 auto;max-width:56ch;}
.price-box{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:14px;padding:18px;text-align:center;}
.price-amount{font-family:'Fraunces',serif;font-size:28px;font-weight:600;color:#fff;}
.price-amount span{font-size:14px;font-weight:400;color:rgba(255,255,255,.65);}
.price-tag{
  display:inline-block;margin-top:10px;font-size:11px;font-weight:700;letter-spacing:.04em;
  text-transform:uppercase;background:var(--gold);color:#2B2014;padding:5px 11px;border-radius:999px;
}

/* ---------- formulario de acceso ---------- */
.access-wrap{position:relative;}
.access-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px 32px;box-shadow:0 30px 60px -30px rgba(20,40,45,.28);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-field{margin-bottom:15px;}
.form-field label{display:block;font-size:11.5px;font-weight:800;color:var(--petrol);margin-bottom:7px;letter-spacing:.04em;text-transform:uppercase;}
.form-field input,.form-field select{
  width:100%;border:1.5px solid var(--line);border-radius:11px;padding:12px 15px;
  font-family:'Inter',sans-serif;font-size:14.5px;color:var(--ink);background:var(--paper,#F7FAFA);
  transition:border-color .18s,box-shadow .18s,background .18s;
}
.form-field input:hover,.form-field select:hover{border-color:#C9D6D8;}
.form-field input:focus,.form-field select:focus{outline:none;border-color:var(--teal);background:#fff;box-shadow:0 0 0 4px var(--teal-soft);}
.hp-field{position:absolute;left:-9999px;}

/* ---------- footer mini ---------- */
.footer-mini{background:var(--petrol-dark);color:rgba(255,255,255,.7);padding:24px 0;text-align:center;font-size:12.5px;}
.footer-mini a{color:rgba(255,255,255,.85);text-decoration:none;font-weight:600;}
.footer-mini a:hover{color:var(--teal);}

/* ---------- responsive ---------- */
@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr;text-align:center;}
  .hero-mascot{display:none;}
  .hero-spiral-bg,.hero-spiral-bg-small,.section-alt-spiral{display:none;}
  .access-sprout,.access-sprout-bubble{display:none;}
  .hero-meta,.hero-cta-row{justify-content:center;}
  .info-grid{grid-template-columns:1fr;}
  .mod-grid{grid-template-columns:1fr;}
  .flow-row{flex-direction:column;gap:20px;}
  .flow-connector{display:none;}
  .price-card{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .mod-card summary{flex-wrap:wrap;padding:12px 16px;gap:8px 10px;}
  .mod-num{width:30px;height:30px;font-size:13px;}
  .mod-title{min-width:140px;flex:1 1 auto;}
  .mod-title strong{font-size:14px;}
  .mod-level{order:3;margin-left:40px;}
  .mod-chevron{order:2;margin-left:auto;}
  .mod-body{padding:0 16px 14px 16px;}
  .nav-back{display:none;}
}