/* ==========================================================================
   Opera Nexo Digital — hoja de estilos
   Sistema visual: "circuito nocturno" — azul noche + ámbar eléctrico
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --ink:#05070E;
  --ink-2:#0A0E1A;
  --ink-3:#111726;
  --ink-4:#18203300;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --text:#E9ECF5;
  --muted:#96A0BC;
  --muted-2:#6C7797;
  --amber:#FF7A18;
  --amber-2:#FFA24D;
  --amber-dim:rgba(255,122,24,.14);
  --blue:#4C82FF;
  --blue-dim:rgba(76,130,255,.14);
  --mint:#37E0AE;
  --radius:14px;
  --maxw:1180px;
  --shadow:0 24px 60px -24px rgba(0,0,0,.85);
  --ff-display:'Space Grotesk',system-ui,-apple-system,'Segoe UI',sans-serif;
  --ff-body:'IBM Plex Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
  --ff-mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--ff-body);
  font-size:17px;
  line-height:1.68;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* Malla de fondo global */
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 120% 80% at 50% 0%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 120% 80% at 50% 0%,#000 20%,transparent 78%);
}
body>*{position:relative;z-index:1}

img,svg{max-width:100%;display:block}
a{color:var(--amber-2);text-decoration:none}
a:hover{color:var(--amber)}
h1,h2,h3,h4{font-family:var(--ff-display);font-weight:700;line-height:1.14;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(2.4rem,6vw,4.15rem);letter-spacing:-.035em}
h2{font-size:clamp(1.85rem,3.6vw,2.7rem);letter-spacing:-.028em}
h3{font-size:1.22rem;letter-spacing:-.015em}
h4{font-size:.95rem;letter-spacing:.02em}
p{margin:0 0 1.15em}
ul,ol{padding-left:1.15em}
li{margin-bottom:.5em}
strong{color:#fff;font-weight:600}
hr{border:0;border-top:1px solid var(--line);margin:2.5rem 0}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.narrow{max-width:820px}

/* -------------------------------------------------- utilidades tipográficas */
.eyebrow{
  font-family:var(--ff-mono);
  font-size:.74rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--amber);
  margin:0 0 1rem;
  display:flex;align-items:center;gap:.7rem;
}
.eyebrow::before{
  content:"";width:26px;height:1px;background:var(--amber);flex:none;
}
.eyebrow.center{justify-content:center}
.lead{font-size:1.13rem;color:var(--muted);max-width:62ch}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}
.mono{font-family:var(--ff-mono)}

/* -------------------------------------------------------------- navegación */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,14,.72);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:24px;height:74px}
.brand{display:flex;align-items:center;gap:11px;color:var(--text)!important;flex:none}
.brand:hover{color:#fff!important}
.brand-mark{width:34px;height:34px;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-name{font-family:var(--ff-display);font-weight:700;font-size:1.06rem;letter-spacing:-.02em}
.brand-sub{font-family:var(--ff-mono);font-size:.6rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted-2)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  color:var(--muted);font-size:.93rem;font-weight:500;
  padding:8px 13px;border-radius:9px;transition:.16s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-links a.active{color:var(--amber-2)}
.nav-cta{margin-left:10px}
.nav-toggle{
  display:none;margin-left:auto;background:none;border:1px solid var(--line-strong);
  color:var(--text);border-radius:10px;width:42px;height:42px;cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:17px;height:1.5px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:17px;height:1.5px;background:currentColor;
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}

/* ------------------------------------------------------------------ botones */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  font-family:var(--ff-display);font-weight:600;font-size:.94rem;letter-spacing:-.01em;
  padding:13px 24px;border-radius:10px;border:1px solid transparent;
  cursor:pointer;transition:.18s;white-space:nowrap;
}
.btn-primary{background:var(--amber);color:#160800!important;box-shadow:0 10px 30px -12px rgba(255,122,24,.8)}
.btn-primary:hover{background:var(--amber-2);color:#160800!important;transform:translateY(-1px)}
.btn-ghost{border-color:var(--line-strong);color:var(--text)!important;background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber-2)!important;background:var(--amber-dim)}
.btn-sm{padding:9px 17px;font-size:.87rem}

/* ------------------------------------------------------------------- layout */
section{padding:96px 0;position:relative}
.section-head{max-width:660px;margin-bottom:52px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* -------------------------------------------------------------------- hero */
.hero{padding:88px 0 84px;overflow:hidden}
.hero::after{
  content:"";position:absolute;top:-30%;right:-10%;width:760px;height:760px;
  background:radial-gradient(circle,rgba(255,122,24,.14),transparent 62%);
  pointer-events:none;filter:blur(20px);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.hero h1{margin-bottom:.55em}
.hero h1 .accent{
  background:linear-gradient(100deg,var(--amber) 10%,var(--amber-2) 55%,var(--blue) 130%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .lead{font-size:1.2rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:34px}
.chip{
  font-family:var(--ff-mono);font-size:.73rem;letter-spacing:.09em;text-transform:uppercase;
  color:var(--muted);border:1px dashed var(--line-strong);border-radius:999px;padding:6px 14px;
}

/* Diagrama de nodos */
.hero-visual{position:relative}
.node-card{
  border:1px solid var(--line);
  background:linear-gradient(160deg,var(--ink-3),var(--ink-2) 70%);
  border-radius:18px;padding:26px;box-shadow:var(--shadow);
}
.node-card svg{width:100%;height:auto}
.node-card .cap{
  font-family:var(--ff-mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted-2);margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:1rem;
}
.pulse{animation:pulse 3.2s ease-in-out infinite}
.pulse-2{animation:pulse 3.2s ease-in-out .8s infinite}
.pulse-3{animation:pulse 3.2s ease-in-out 1.6s infinite}
@keyframes pulse{0%,100%{opacity:.35}50%{opacity:1}}
.dash{stroke-dasharray:4 6;animation:flow 2.6s linear infinite}
@keyframes flow{to{stroke-dashoffset:-40}}

/* --------------------------------------------------------------- barra data */
.databar{border-block:1px solid var(--line);background:var(--ink-2);padding:0}
.databar-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.databar-item{padding:30px 26px;border-right:1px solid var(--line)}
.databar-item:last-child{border-right:0}
.databar-item .k{
  font-family:var(--ff-display);font-size:1.75rem;font-weight:700;color:#fff;letter-spacing:-.03em;
  display:block;line-height:1.1;
}
.databar-item .v{
  font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.15em;text-transform:uppercase;
  color:var(--muted-2);margin-top:6px;display:block;
}

/* ------------------------------------------------------------------- cards */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{
  border:1px solid var(--line);
  background:var(--ink-2);
  border-radius:var(--radius);
  padding:30px 28px;
  position:relative;
  transition:.2s;
}
.card:hover{border-color:var(--line-strong);background:var(--ink-3);transform:translateY(-3px)}
.card h3{margin-bottom:.45em}
.card p{color:var(--muted);margin-bottom:0;font-size:.96rem}
.card-num{
  font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.16em;color:var(--amber);
  display:block;margin-bottom:1.4rem;
}

/* Tarjeta de producto con esquina biselada */
.product{
  border:1px solid var(--line);
  background:linear-gradient(170deg,var(--ink-3),var(--ink-2) 60%);
  padding:32px 30px 30px;
  position:relative;
  clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,0 100%);
  transition:.22s;
}
.product::after{
  content:"";position:absolute;top:0;right:0;width:22px;height:22px;
  background:var(--amber);
  clip-path:polygon(0 0,100% 100%,0 100%);
  opacity:.55;transition:.22s;
}
.product:hover{transform:translateY(-4px)}
.product:hover::after{opacity:1}
.product-ico{
  width:46px;height:46px;border-radius:11px;display:grid;place-items:center;
  background:var(--amber-dim);border:1px solid rgba(255,122,24,.28);margin-bottom:20px;
}
.product-ico svg{width:22px;height:22px;stroke:var(--amber);fill:none;stroke-width:1.7}
.product h3{margin-bottom:.5em}
.product p{color:var(--muted);font-size:.96rem}
.product ul{list-style:none;padding:0;margin:18px 0 0;border-top:1px solid var(--line);padding-top:16px}
.product li{
  font-family:var(--ff-mono);font-size:.78rem;letter-spacing:.05em;color:var(--muted-2);
  padding-left:18px;position:relative;margin-bottom:.45em;
}
.product li::before{content:"›";position:absolute;left:0;color:var(--amber);font-weight:700}

/* -------------------------------------------------------------- pasos flujo */
.steps{counter-reset:step;display:grid;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.step{
  display:grid;grid-template-columns:88px 1fr;gap:24px;align-items:start;
  padding:30px 30px;border-bottom:1px solid var(--line);background:var(--ink-2);transition:.2s;
}
.step:last-child{border-bottom:0}
.step:hover{background:var(--ink-3)}
.step-n{
  font-family:var(--ff-mono);font-size:.78rem;letter-spacing:.14em;color:var(--amber);
  padding-top:.35rem;
}
.step h3{margin-bottom:.35em}
.step p{color:var(--muted);margin:0;font-size:.96rem}

/* --------------------------------------------------------------- destacados */
.panel{
  border:1px solid var(--line);border-radius:18px;
  background:linear-gradient(150deg,rgba(255,122,24,.09),transparent 45%),var(--ink-2);
  padding:44px 42px;
}
.panel-split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}

.checklist{list-style:none;padding:0;margin:0}
.checklist li{
  padding-left:32px;position:relative;color:var(--muted);margin-bottom:.85em;font-size:.98rem;
}
.checklist li::before{
  content:"";position:absolute;left:0;top:.52em;width:16px;height:16px;border-radius:4px;
  background:var(--amber-dim);border:1px solid rgba(255,122,24,.4);
}
.checklist li::after{
  content:"";position:absolute;left:5px;top:.78em;width:5px;height:9px;
  border:solid var(--amber);border-width:0 1.6px 1.6px 0;transform:rotate(45deg);
}

/* ---------------------------------------------------------------- acordeón */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  cursor:pointer;list-style:none;padding:22px 44px 22px 0;position:relative;
  font-family:var(--ff-display);font-weight:600;font-size:1.03rem;color:var(--text);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:8px;top:19px;color:var(--amber);
  font-family:var(--ff-mono);font-size:1.35rem;line-height:1;transition:.2s;
}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--muted);margin:0 0 22px;font-size:.98rem;padding-right:44px}

/* ------------------------------------------------------------------ contacto */
.contact-card{
  border:1px solid var(--line);border-radius:18px;background:var(--ink-2);
  padding:44px;display:grid;grid-template-columns:1fr auto;gap:36px;align-items:center;
}
.contact-mail{
  font-family:var(--ff-mono);font-size:1.02rem;color:var(--amber-2);
  display:inline-flex;align-items:center;gap:.5rem;
}
.dl{display:grid;grid-template-columns:auto 1fr;gap:.4rem 1.5rem;font-size:.93rem;margin:0}
.dl dt{font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);padding-top:.28em}
.dl dd{margin:0;color:var(--text)}

/* -------------------------------------------------------------- páginas doc */
.page-hero{padding:70px 0 44px;border-bottom:1px solid var(--line)}
.page-hero h1{font-size:clamp(2rem,4.6vw,3.1rem);margin-bottom:.35em}
.page-hero .meta{
  font-family:var(--ff-mono);font-size:.76rem;letter-spacing:.13em;text-transform:uppercase;color:var(--muted-2);
}
.doc{padding:64px 0 96px}
.doc h2{font-size:1.42rem;margin-top:2.6em;padding-top:1.6em;border-top:1px solid var(--line)}
.doc h2:first-of-type{margin-top:0;padding-top:0;border-top:0}
.doc h3{font-size:1.05rem;margin-top:1.9em;color:#fff}
.doc p,.doc li{color:var(--muted);font-size:1rem}
.doc strong{color:var(--text)}
.toc{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--ink-2);
  padding:26px 30px;margin-bottom:52px;
}
.toc h4{
  font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted-2);margin:0 0 14px;
}
.toc ol{margin:0;padding-left:1.2em;columns:2;column-gap:2.5rem}
.toc li{margin-bottom:.4em;font-size:.92rem}
.toc a{color:var(--muted)}
.toc a:hover{color:var(--amber-2)}
.callout{
  border-left:2px solid var(--amber);background:var(--amber-dim);
  padding:20px 24px;border-radius:0 var(--radius) var(--radius) 0;margin:28px 0;
}
.callout p:last-child{margin-bottom:0}
.callout p{color:var(--text);font-size:.97rem}

/* ------------------------------------------------------------------ footer */
.site-footer{border-top:1px solid var(--line);background:var(--ink-2);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.35fr;gap:44px;padding-bottom:52px}
.footer-brand p{color:var(--muted-2);font-size:.9rem;margin-top:18px;max-width:34ch}
.footer-col h4{
  font-family:var(--ff-mono);font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted-2);margin:0 0 16px;
}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:.6em}
.footer-col a{color:var(--muted);font-size:.92rem}
.footer-col a:hover{color:var(--amber-2)}
.company-info{font-style:normal;display:flex;flex-direction:column;gap:.28rem;font-size:.86rem;color:var(--muted)}
.company-info strong{color:var(--text);font-weight:600;font-family:var(--ff-display)}
.company-info .cnpj{font-family:var(--ff-mono);font-size:.82rem;color:var(--muted-2)}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 24px;display:flex;flex-wrap:wrap;
  justify-content:space-between;gap:14px;align-items:center;
}
.footer-bottom p{margin:0;color:var(--muted-2);font-size:.84rem}
.footer-legal{display:flex;flex-wrap:wrap;gap:20px}
.footer-legal a{color:var(--muted-2);font-size:.84rem}
.footer-legal a:hover{color:var(--amber-2)}
.footer-note{
  border-top:1px solid var(--line);padding:20px 24px 34px;
  color:var(--muted-2);font-size:.78rem;line-height:1.6;max-width:none;
}

/* --------------------------------------------------------------------- 404 */
.err{min-height:64vh;display:grid;place-items:center;text-align:center;padding:90px 0}
.err .code{
  font-family:var(--ff-mono);font-size:clamp(4rem,14vw,9rem);color:var(--amber);
  line-height:1;letter-spacing:-.04em;opacity:.9;
}

/* --------------------------------------------------------------- responsive */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .panel-split{grid-template-columns:1fr;gap:32px}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .databar-grid{grid-template-columns:repeat(2,1fr)}
  .databar-item:nth-child(2){border-right:0}
  .databar-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:760px){
  body{font-size:16px}
  section{padding:70px 0}
  .nav-toggle{display:flex}
  .nav-links{
    display:none;position:absolute;top:74px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:var(--ink-2);border-bottom:1px solid var(--line);padding:14px 18px 20px;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px}
  .nav-cta{margin:8px 0 0}
  .contact-card{grid-template-columns:1fr;padding:32px 26px}
  .panel{padding:32px 26px}
  .toc ol{columns:1}
  .step{grid-template-columns:1fr;gap:8px;padding:26px 22px}
  .step-n{padding-top:0}
}
@media (max-width:560px){
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
  .databar-grid{grid-template-columns:1fr}
  .databar-item{border-right:0;border-bottom:1px solid var(--line)}
  .databar-item:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto}
}