/* ============================================================
   CentralHub · sistema visual
   Dark-first, neón contenido, tipografía geométrica.
   ============================================================ */

:root{
  --bg:#05060A;
  --bg-2:#080A11;
  --panel:rgba(255,255,255,.028);
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.16);
  --txt:#EAF0F5;
  --txt-2:#9AA6B6;
  --txt-3:#6B788A;

  --c1:#00E5C4;   /* teal */
  --c2:#6D5EFC;   /* violeta */
  --c3:#31D0FF;   /* cian */

  --r:16px;
  --r-lg:24px;
  --wrap:1180px;
  --ease:cubic-bezier(.22,.68,.28,1);

  --f-sans:'Space Grotesk',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --f-mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  background:var(--bg);
  color:var(--txt);
  font-family:var(--f-sans);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
button,input,textarea{font:inherit;color:inherit}

/* ── fondo ─────────────────────────────────────────────── */
#mesh{position:fixed;inset:0;width:100%;height:100%;z-index:0;opacity:.55}
.grid-overlay{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 20%,transparent 78%);
}
.noise{
  position:fixed;inset:0;z-index:2;pointer-events:none;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
main,.nav,.footer{position:relative;z-index:3}

/* ── layout ────────────────────────────────────────────── */
.wrap{width:min(100% - 44px,var(--wrap));margin-inline:auto}
.section{padding:120px 0}
.section-alt{background:linear-gradient(180deg,transparent,rgba(109,94,252,.045),transparent)}
.section-head{max-width:720px;margin-bottom:64px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}

/* ── tipografía ────────────────────────────────────────── */
h1{font-size:clamp(2.5rem,5.6vw,4.4rem);line-height:1.04;letter-spacing:-.035em;font-weight:600}
h2{font-size:clamp(2rem,3.7vw,3rem);line-height:1.1;letter-spacing:-.03em;font-weight:600;margin-bottom:20px}
h3{font-size:1.22rem;letter-spacing:-.015em;font-weight:600;margin-bottom:10px}
h4{font-size:1.02rem;font-weight:600;margin-bottom:4px}
.lead{font-size:1.18rem;color:var(--txt-2);max-width:56ch;margin-bottom:36px}
.sub{color:var(--txt-2);max-width:58ch}
.sub + .sub{margin-top:16px}
.grad{
  background:linear-gradient(105deg,var(--c1),var(--c3) 45%,var(--c2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.kicker{
  display:inline-block;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--c1);margin-bottom:18px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--f-mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--txt-2);border:1px solid var(--line);border-radius:99px;
  padding:7px 15px;margin-bottom:28px;background:var(--panel);backdrop-filter:blur(8px);
}
.dot{width:6px;height:6px;border-radius:50%;background:var(--c1);box-shadow:0 0 12px var(--c1)}

/* ── botones ───────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:99px;border:1px solid transparent;
  font-weight:500;font-size:.95rem;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s,border-color .25s;
}
.btn-sm{padding:10px 20px;font-size:.88rem}
.btn-primary{
  background:linear-gradient(100deg,var(--c1),var(--c3) 55%,var(--c2));
  color:#04060B;font-weight:600;
  box-shadow:0 8px 30px -10px rgba(0,229,196,.6);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 44px -12px rgba(0,229,196,.75)}
.btn-ghost{border-color:var(--line-2);background:var(--panel);color:var(--txt)}
.btn-ghost:hover{border-color:var(--c1);color:var(--c1);transform:translateY(-2px)}

/* ── nav ───────────────────────────────────────────────── */
.nav{
  position:fixed;top:0;left:0;right:0;height:74px;
  display:flex;align-items:center;gap:28px;
  padding:0 max(22px,calc((100vw - var(--wrap))/2));
  transition:background .3s,border-color .3s,backdrop-filter .3s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{background:rgba(5,6,10,.78);backdrop-filter:blur(16px);border-bottom-color:var(--line)}
.brand{display:flex;align-items:center;gap:11px;color:var(--c1);flex-shrink:0}
.brand-mark{width:28px;height:28px}
.brand-arc{transform-origin:50% 50%;animation:spin 7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.brand-name{font-weight:700;letter-spacing:-.03em;font-size:1.12rem;color:var(--txt)}
.nav-links{display:flex;gap:30px;margin-left:auto;font-size:.92rem;color:var(--txt-2)}
.nav-links a{position:relative;transition:color .2s}
.nav-links a:hover{color:var(--txt)}
.nav-links a::after{
  content:'';position:absolute;left:0;bottom:-6px;height:1px;width:0;
  background:var(--c1);transition:width .28s var(--ease);
}
.nav-links a:hover::after{width:100%}
.nav-toggle{display:none;background:none;border:0;width:38px;height:38px;cursor:pointer}
.nav-toggle span{display:block;height:1.5px;background:var(--txt);margin:5px auto;width:20px;transition:.25s}

/* ── hero ──────────────────────────────────────────────── */
.hero{padding:170px 0 110px}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:52px}
.hero-stats{display:flex;gap:44px;list-style:none;flex-wrap:wrap}
.hero-stats li{display:flex;flex-direction:column}
.hero-stats strong{
  font-size:2.1rem;font-weight:600;letter-spacing:-.03em;
  background:linear-gradient(120deg,var(--c1),var(--c3));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-stats span{font-size:.85rem;color:var(--txt-3);max-width:16ch;line-height:1.4}

/* teléfono */
.hero-visual{position:relative;display:flex;justify-content:center}
.halo{
  position:absolute;inset:-16% -10%;z-index:-1;
  background:radial-gradient(circle at 50% 40%,rgba(109,94,252,.32),transparent 62%);
  filter:blur(28px);
}
.phone{
  width:100%;max-width:370px;border:1px solid var(--line-2);border-radius:30px;
  background:linear-gradient(180deg,rgba(12,14,22,.95),rgba(8,9,14,.98));
  box-shadow:0 40px 90px -30px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.03) inset;
  overflow:hidden;backdrop-filter:blur(12px);
  animation:float 7s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.phone-top{display:flex;align-items:center;gap:12px;padding:16px 18px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.02)}
.avatar{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--c1),var(--c2));color:#04060B;font-weight:700;font-size:.95rem;
}
.phone-top b{display:block;font-size:.92rem;font-weight:600}
.phone-top small{display:flex;align-items:center;gap:6px;font-size:.72rem;color:var(--c1)}
.pulse{width:6px;height:6px;border-radius:50%;background:var(--c1);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(0,229,196,.5)}50%{opacity:.5;box-shadow:0 0 0 6px rgba(0,229,196,0)}}
.phone-body{height:400px;padding:20px 16px;display:flex;flex-direction:column;gap:10px;overflow:hidden;justify-content:flex-end}
.msg{
  max-width:82%;padding:11px 14px;border-radius:16px;font-size:.9rem;line-height:1.45;
  animation:pop .35s var(--ease) both;
}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.97)}}
.msg.them{align-self:flex-start;background:rgba(255,255,255,.06);border:1px solid var(--line);border-bottom-left-radius:5px}
.msg.me{
  align-self:flex-end;border-bottom-right-radius:5px;color:#04060B;font-weight:500;
  background:linear-gradient(120deg,var(--c1),var(--c3));
}
.msg.typing{display:flex;gap:4px;align-items:center;padding:14px}
.msg.typing i{width:6px;height:6px;border-radius:50%;background:var(--txt-2);animation:blink 1.2s infinite}
.msg.typing i:nth-child(2){animation-delay:.2s}
.msg.typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,60%,100%{opacity:.25}30%{opacity:1}}
.phone-input{padding:14px 18px;border-top:1px solid var(--line);color:var(--txt-3);font-size:.85rem;background:rgba(255,255,255,.02)}

/* ── cards ─────────────────────────────────────────────── */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  position:relative;padding:32px 28px;border-radius:var(--r-lg);
  border:1px solid var(--line);background:var(--panel);backdrop-filter:blur(10px);
  transition:transform .35s var(--ease),border-color .35s,background .35s;
  overflow:hidden;
}
.card::before{
  content:'';position:absolute;inset:0;opacity:0;transition:opacity .4s;
  background:radial-gradient(500px circle at var(--mx,50%) var(--my,0%),rgba(0,229,196,.10),transparent 45%);
}
.card:hover{transform:translateY(-6px);border-color:var(--line-2)}
.card:hover::before{opacity:1}
.card-ico{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:20px;
  background:linear-gradient(135deg,rgba(0,229,196,.16),rgba(109,94,252,.16));
  border:1px solid var(--line);
}
.card-ico svg{width:22px;height:22px;fill:none;stroke:var(--c1);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.card p{color:var(--txt-2);font-size:.95rem}
.ticks{list-style:none;margin-top:20px;display:grid;gap:9px}
.ticks li{
  position:relative;padding-left:24px;font-size:.88rem;color:var(--txt-2);line-height:1.45;
}
.ticks li::before{
  content:'';position:absolute;left:4px;top:.5em;width:7px;height:7px;border-radius:2px;
  background:linear-gradient(135deg,var(--c1),var(--c2));
}

/* ── steps ─────────────────────────────────────────────── */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;margin-bottom:80px}
.step{padding:34px 30px;background:var(--bg-2);transition:background .3s}
.step:hover{background:rgba(0,229,196,.045)}
.step-n{font-family:var(--f-mono);font-size:.78rem;color:var(--c2);letter-spacing:.12em;display:block;margin-bottom:14px}
.step p{color:var(--txt-2);font-size:.93rem}

/* ── flow ──────────────────────────────────────────────── */
.flow{display:flex;align-items:center;gap:0;flex-wrap:wrap;justify-content:center}
.flow-node{
  padding:18px 26px;border:1px solid var(--line);border-radius:var(--r);
  background:var(--panel);text-align:center;backdrop-filter:blur(8px);
}
.flow-node b{display:block;font-size:.95rem;font-weight:600}
.flow-node small{color:var(--txt-3);font-size:.76rem;font-family:var(--f-mono)}
.flow-node.accent{border-color:rgba(0,229,196,.45);box-shadow:0 0 40px -14px rgba(0,229,196,.7)}
.flow-node.accent b{color:var(--c1)}
.flow-line{
  flex:1;min-width:36px;height:1px;
  background:linear-gradient(90deg,var(--line),var(--c1),var(--line));
  background-size:200% 100%;animation:slide 2.6s linear infinite;
}
@keyframes slide{to{background-position:-200% 0}}

/* ── timeline ──────────────────────────────────────────── */
.timeline{list-style:none;position:relative;padding-left:34px}
.timeline::before{content:'';position:absolute;left:7px;top:8px;bottom:8px;width:1px;background:linear-gradient(180deg,var(--c1),var(--c2),transparent)}
.timeline li{position:relative;padding-bottom:30px}
.timeline li:last-child{padding-bottom:0}
.t-dot{position:absolute;left:-34px;top:6px;width:15px;height:15px;border-radius:50%;border:1px solid var(--line-2);background:var(--bg);display:grid;place-items:center}
.t-dot::after{content:'';width:5px;height:5px;border-radius:50%;background:var(--txt-3)}
.timeline li.hl .t-dot{border-color:var(--c1);box-shadow:0 0 16px rgba(0,229,196,.6)}
.timeline li.hl .t-dot::after{background:var(--c1)}
.timeline li.hl h4{color:var(--c1)}
.timeline p{color:var(--txt-2);font-size:.92rem}

/* ── layers ────────────────────────────────────────────── */
.layers{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:44px}
.layer{
  padding:30px 26px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(109,94,252,.09),transparent 60%);
  transition:transform .35s var(--ease),border-color .3s;
}
.layer:hover{transform:translateY(-5px);border-color:rgba(109,94,252,.45)}
.layer-tag{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--c2);display:block;margin-bottom:12px}
.layer p{color:var(--txt-2);font-size:.93rem}
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.chips span{
  font-family:var(--f-mono);font-size:.76rem;padding:8px 15px;border-radius:99px;
  border:1px solid var(--line);color:var(--txt-2);background:var(--panel);
  transition:border-color .25s,color .25s;
}
.chips span:hover{border-color:var(--c1);color:var(--c1)}

/* ── planes ────────────────────────────────────────────── */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.plan{
  position:relative;padding:36px 30px;border-radius:var(--r-lg);
  border:1px solid var(--line);background:var(--panel);backdrop-filter:blur(10px);
  display:flex;flex-direction:column;gap:16px;
  transition:transform .35s var(--ease),border-color .3s;
}
.plan:hover{transform:translateY(-5px)}
.plan.featured{
  border-color:rgba(0,229,196,.4);
  background:linear-gradient(180deg,rgba(0,229,196,.075),rgba(109,94,252,.05));
  box-shadow:0 30px 80px -40px rgba(0,229,196,.55);
}
.badge{
  position:absolute;top:-11px;left:30px;font-family:var(--f-mono);font-size:.66rem;
  letter-spacing:.16em;text-transform:uppercase;padding:5px 12px;border-radius:99px;
  background:linear-gradient(100deg,var(--c1),var(--c2));color:#04060B;font-weight:600;
}
.plan-for{color:var(--txt-3);font-size:.88rem;margin-top:-8px}
.scope{display:flex;flex-direction:column;gap:3px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.scope b{
  font-size:1.45rem;font-weight:600;letter-spacing:-.03em;
  background:linear-gradient(120deg,var(--c1),var(--c3));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.scope span{color:var(--txt-3);font-family:var(--f-mono);font-size:.76rem;letter-spacing:.04em}
.plan .ticks{flex:1;margin-top:0}
.plan .btn{width:100%}
.fineprint{text-align:center;color:var(--txt-3);font-size:.82rem;margin-top:30px}

/* ── contacto ──────────────────────────────────────────── */
.section-cta{padding-bottom:130px}
.cta-box{
  padding:70px 60px;border-radius:32px;border:1px solid var(--line-2);
  background:
    radial-gradient(700px circle at 80% 0%,rgba(109,94,252,.16),transparent 60%),
    linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015));
  backdrop-filter:blur(14px);
}
.form{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:40px;max-width:720px}
.field{display:flex;flex-direction:column;gap:7px}
.full{grid-column:1/-1}
.field label{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--txt-3)}
.field input,.field textarea{
  background:rgba(255,255,255,.035);border:1px solid var(--line);border-radius:12px;
  padding:13px 15px;font-size:.95rem;transition:border-color .25s,background .25s;resize:vertical;
}
.field input::placeholder,.field textarea::placeholder{color:var(--txt-3)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--c1);background:rgba(0,229,196,.05)}
.field.invalid input,.field.invalid textarea{border-color:#FF5C7A}
.form-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.form-msg{font-size:.88rem;color:var(--c1)}
.form-msg.err{color:#FF5C7A}

/* ── footer ────────────────────────────────────────────── */
.footer{border-top:1px solid var(--line);padding:64px 0 34px;background:rgba(255,255,255,.012)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:44px}
.footer-grid h5{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--txt-3);margin-bottom:16px;font-weight:500}
.footer-grid a:not(.brand){display:block;color:var(--txt-2);font-size:.9rem;margin-bottom:10px;transition:color .2s}
.footer-grid a:not(.brand):hover{color:var(--c1)}
.footer-tag{color:var(--txt-3);font-size:.9rem;margin-top:16px;line-height:1.6}
.footer-bot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:52px;padding-top:26px;border-top:1px solid var(--line);color:var(--txt-3)}

/* ── reveal ────────────────────────────────────────────── */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ── responsive ────────────────────────────────────────── */
@media (max-width:1000px){
  .hero-grid,.two-col{grid-template-columns:1fr;gap:56px}
  .cards,.steps,.layers,.plans{grid-template-columns:1fr}
  .steps{gap:1px}
  .hero{padding-top:140px}
  .section{padding:86px 0}
  .cta-box{padding:46px 26px}
  .flow{flex-direction:column}
  .flow-node{width:100%}
  .flow-line{width:1px;height:26px;min-width:0;background:linear-gradient(180deg,var(--line),var(--c1),var(--line))}
}
@media (max-width:760px){
  body{font-size:16px}
  .nav-links{
    position:fixed;inset:74px 0 auto 0;flex-direction:column;gap:0;
    background:rgba(5,6,10,.97);backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);padding:10px 22px 22px;
    transform:translateY(-120%);transition:transform .35s var(--ease);
  }
  .nav-links.open{transform:none}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line)}
  .nav-toggle{display:block;margin-left:auto;order:3}
  .nav .btn-sm{display:none}
  .form{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-stats{gap:26px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}