:root{
  --ink:#1E2B3A; --ink-2:#4A5B6D; --ink-3:#5B6B7C;
  --line:#DCE4EB; --line-2:#C9D5E0;
  --bg:#F5F8FA; --surface:#FFFFFF;
  --primary:#1F6FB2; --primary-d:#174E80;
  --accent:#14A098; --accent-d:#0E7A73; --accent-soft:#E3F2F0;
  --radius:16px;
  --font:'Sora',system-ui,-apple-system,'Segoe UI',sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-d)}
a:focus-visible,button:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:8px}
h1,h2,h3,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
section{padding:104px 0}
.eyebrow{font-size:14px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-d);margin-bottom:14px}
h2{font-size:clamp(32px,4vw,46px);font-weight:700;letter-spacing:-.03em;line-height:1.12}
.lead{font-size:18px;color:var(--ink-2);max-width:640px;margin-top:16px}
.head{margin-bottom:56px}

/* buttons */
.btn{display:inline-block;padding:16px 26px;border-radius:10px;font-weight:600;font-size:16px;transition:background .15s,transform .15s,border-color .15s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-d);color:#fff;transform:translateY(-1px)}
.btn-ghost{border:1.5px solid var(--line-2);color:var(--ink);font-weight:500}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink)}

/* header */
.site-header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-size:22px;font-weight:600;letter-spacing:-.02em}
.brand:hover{color:var(--ink)}
.nav{display:flex;align-items:center;gap:28px;font-size:15px;font-weight:500}
.nav a{color:#3D4E60}
.nav a:hover{color:var(--primary)}
.nav .btn{padding:11px 18px;font-size:15px;color:#fff}
.nav .btn:hover{color:#fff}

/* hero */
.hero{background:var(--surface);padding:96px 0 104px}
.hero .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:56px}
.hero-copy{flex:999 1 560px;min-width:0}
.hero h1{font-size:clamp(40px,5.4vw,70px);font-weight:700;letter-spacing:-.035em;line-height:1.05;max-width:780px}
.hero h1 em{font-style:normal;color:var(--accent-d)}
.hero p{font-size:19px;color:var(--ink-2);max-width:610px;margin-top:28px}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero-mark{flex:1 1 300px;display:flex;justify-content:center}
.hero-mark div{width:340px;max-width:100%;aspect-ratio:1;border-radius:50%;background:var(--accent-soft);display:grid;place-items:center}
.hero-mark svg{width:76%;height:auto}

/* cards */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:32px}
.card h3{font-size:21px;font-weight:600;letter-spacing:-.01em;color:var(--primary);margin-bottom:10px}
.card p,.card li{font-size:16px;color:var(--ink-2);line-height:1.65}

/* consultoría */
#consultoria{background:var(--bg)}
.audience{margin-top:20px;background:var(--ink);color:#fff;border-radius:var(--radius);padding:32px;display:flex;flex-wrap:wrap;gap:16px 48px;align-items:center}
.audience h3{flex:0 1 300px;font-size:21px;font-weight:600}
.audience p{flex:1 1 420px;color:var(--line-2)}

/* flujos */
#flujos{background:var(--surface)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.steps li{padding:24px 28px 24px 0;border-top:3px solid var(--line-2)}
.steps li:first-child{border-top-color:var(--accent)}
.steps .n{font-size:15px;font-weight:600;color:var(--accent-d)}
.steps h3{font-size:21px;font-weight:600;margin:8px 0 10px}
.steps p{font-size:15px;color:var(--ink-2)}
.deliver{margin-top:40px;padding:24px 28px;background:var(--accent-soft);border-radius:var(--radius);color:var(--ink);font-size:17px}
.deliver strong{color:var(--accent-d)}

/* automatización */
#automatizacion{background:var(--bg)}
.case{display:flex;flex-direction:column;gap:14px}
.case .tag{font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.case ul{display:flex;flex-direction:column;gap:6px;padding-top:14px;border-top:1px solid var(--line)}
.case li{padding-left:22px;position:relative}
.case li::before{content:"";position:absolute;left:0;top:.8em;width:10px;height:2px;background:var(--accent)}

/* framework */
#framework{background:var(--ink);color:#fff}
#framework .eyebrow{color:#5FD3CA}
#framework .lead{color:var(--line-2)}
.stairs{display:grid;grid-template-columns:repeat(5,1fr);column-gap:14px;margin-top:8px}
.stair{display:flex;flex-direction:column;gap:8px;padding:22px 20px;border-radius:14px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05);overflow:hidden}
.stair:nth-child(5){background:linear-gradient(180deg,rgba(20,160,152,.28),rgba(20,160,152,.1));border-color:rgba(95,211,202,.55)}
@media (min-width:1025px){
  .stairs{grid-template-rows:auto auto 1fr auto auto;padding-bottom:20px}
  .stair{display:grid;grid-row:span 5;grid-template-rows:subgrid;gap:0;padding:22px 20px 0}
  .stair h3{margin:6px 0 8px}
  .stair .q{margin-top:14px}
  .stair::before{content:"";grid-row:5;align-self:end;margin:20px -20px 0;border-top:2px solid #5FD3CA;background:rgba(95,211,202,.16)}
  .stair:nth-child(1)::before{height:16px}
  .stair:nth-child(2)::before{height:40px}
  .stair:nth-child(3)::before{height:64px}
  .stair:nth-child(4)::before{height:88px}
  .stair:nth-child(5)::before{height:112px;background:rgba(95,211,202,.3)}
}
.stair .n{font-size:13px;font-weight:600;letter-spacing:.08em;color:#5FD3CA}
.stair h3{font-size:20px;font-weight:600;letter-spacing:-.01em}
.stair p{font-size:14px;line-height:1.55;color:var(--line-2)}
.stair .q{margin-top:6px;padding-top:10px;border-top:1px solid rgba(255,255,255,.14);font-size:13px;font-style:italic;color:#fff}
.axis{display:flex;align-items:center;gap:16px;margin-top:20px;font-size:13px;color:var(--line-2)}
.axis i{flex:1;height:1.5px;background:linear-gradient(90deg,rgba(255,255,255,.25),#5FD3CA)}

/* contacto */
#contacto{background:var(--surface);border-top:1px solid var(--line)}
#contacto .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:48px}
.contact-copy{flex:999 1 520px;min-width:0}
.contact-copy h2{font-size:clamp(34px,4.6vw,56px);letter-spacing:-.035em;line-height:1.08;max-width:760px}
.contact-copy p{font-size:18px;color:var(--ink-2);max-width:580px;margin:24px 0 32px}
.contact-copy .btn{font-size:17px;padding:16px 28px}
.contact-mark{flex:0 1 200px;max-width:100%;height:auto}

footer{background:var(--ink);color:var(--line-2);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;padding-top:28px;padding-bottom:28px}
footer a{color:var(--line-2)}
footer a:hover{color:#fff}
footer nav{display:flex;gap:24px}

/* reveal (solo si hay JS) */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
  .btn{transition:none}
}

/* responsive */
@media (max-width:1024px){
  .steps{grid-template-columns:repeat(2,1fr)}
  .stairs{grid-template-columns:1fr;row-gap:14px}
  .axis{display:none}
}
@media (max-width:720px){
  section{padding:72px 0}
  .hero{padding:64px 0 72px}
  .nav a:not(.btn){display:none}
  .grid-2,.steps{grid-template-columns:1fr}
  .steps li{padding-right:0}
  .head{margin-bottom:36px}
}

/* diagnóstico */
.btn-accent{background:var(--accent);color:#06302D;border:0;cursor:pointer;font-family:inherit}
.btn-accent:hover{background:#5FD3CA;color:#06302D;transform:translateY(-1px)}
.btn-ghost-dark{background:transparent;border:1.5px solid var(--line-2);color:var(--ink);cursor:pointer;font-family:inherit;font-weight:500}
.btn-ghost-dark:hover{border-color:var(--ink)}
.stair{position:relative}
.stair.is-you{border-color:#5FD3CA;box-shadow:0 0 0 3px rgba(95,211,202,.45)}
.stair.is-you::after{content:"Usted está aquí";position:absolute;top:-13px;left:16px;padding:3px 12px;border-radius:99px;background:#5FD3CA;color:#06302D;font-size:12px;font-weight:700}
.quiz{margin-top:72px;background:var(--surface);color:var(--ink);border-radius:var(--radius);padding:40px}
.quiz-head h3{font-size:clamp(24px,3vw,32px);font-weight:700;letter-spacing:-.02em;margin-bottom:8px}
.quiz-head p:last-child{color:var(--ink-2)}
.quiz .eyebrow{color:var(--accent-d)}
.quiz-note{margin-top:16px;color:var(--ink-2)}
.quiz-progress{position:sticky;top:64px;z-index:2;background:var(--surface);padding:16px 0 12px;margin-top:24px;font-size:14px;font-weight:600;color:var(--ink-3);display:flex;flex-direction:column;gap:8px}
.quiz-progress .bar{height:6px;border-radius:99px;background:var(--line)}
.quiz-progress .bar i{display:block;height:100%;width:0;border-radius:99px;background:var(--accent);transition:width .25s}
fieldset.q{border:0;border-top:1px solid var(--line);margin:0;padding:24px 0}
fieldset.q legend{padding:0;font-size:17px;font-weight:600;letter-spacing:-.01em;line-height:1.4;float:left;width:100%;margin-bottom:14px}
fieldset.q legend small{display:block;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-d);margin-bottom:4px}
.opts{clear:both;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.opt{position:relative}
.opt input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}
.opt span{display:block;height:100%;padding:12px 16px;border:1.5px solid var(--line-2);border-radius:10px;font-size:15px;line-height:1.45;color:var(--ink-2);transition:border-color .15s,background .15s}
.opt:hover span{border-color:var(--primary)}
.opt input:checked + span{border-color:var(--accent-d);background:var(--accent-soft);color:var(--ink);font-weight:500}
.opt input:focus-visible + span{outline:3px solid var(--accent);outline-offset:2px}
fieldset.q.missing legend{color:#B42318}
.quiz-error{color:#B42318;font-weight:600;margin:8px 0 16px}
.quiz-result{margin-top:24px}
.quiz-result h3{font-size:clamp(28px,3.4vw,40px);font-weight:700;letter-spacing:-.03em;margin:4px 0 12px}
.quiz-result h4{font-size:15px;font-weight:600;margin:24px 0 6px;color:var(--ink)}
.quiz-result p{color:var(--ink-2);max-width:680px}
.quiz-result .cta-row{margin-top:28px}
@media (max-width:720px){
  .quiz{padding:24px 20px}
  .opts{grid-template-columns:1fr}
  .quiz-progress{top:58px}
}
@media (prefers-reduced-motion:reduce){.quiz-progress .bar i,.opt span{transition:none}}