/* NEXO IA · sitio corporativo
   Sistema visual: paneles a pantalla completa sobre fondo casi negro (referencia Tesla),
   tipografía ancha (Archivo) como eco del logo y el degradado azul → cyan como único acento. */

@font-face{font-family:"Archivo";font-style:normal;font-weight:400 900;font-stretch:100% 125%;font-display:swap;src:url(fuentes/archivo.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:400 600;font-display:swap;src:url(fuentes/plex-sans.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:400;font-display:swap;src:url(fuentes/plex-mono-400.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:500;font-display:swap;src:url(fuentes/plex-mono-500.woff2) format("woff2")}

:root{
  /* marca */
  --navy:#0A3D91; --blue:#008DFF; --cyan:#00D4FF; --slate:#1E293B;
  --grad:linear-gradient(120deg,#0A3D91 0%,#008DFF 55%,#00D4FF 100%);
  /* superficies oscuras */
  --void:#04070D; --night:#070C16; --deep:#0B1322; --edge:#1A2840;
  --on-dark:#F2F6FC; --on-dark-2:#A4B3CA; --on-dark-3:#6E7F99;
  /* superficies claras */
  --paper:#FFFFFF; --mist:#F3F5F8; --line:#E1E6EE; --ink:#0B1220; --ink-2:#4B5A70;
  /* acción */
  --action:#0A66D9; --action-hover:#0857BA; --focus:#00D4FF;
  /* tipografía */
  --f-display:"Archivo","Helvetica Neue",Arial,sans-serif;
  --f-body:"IBM Plex Sans","Segoe UI",Roboto,Arial,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --nav-h:60px;
  --gutter:max(20px,env(safe-area-inset-left,0px));
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html.snap{scroll-snap-type:y proximity}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
body{margin:0;background:var(--void);color:var(--on-dark);font-family:var(--f-body);font-size:1rem;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg,canvas{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--f-display);margin:0;line-height:1.08;text-wrap:balance;font-weight:600}
p{margin:0}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--paper);color:var(--ink);padding:10px 14px;border-radius:4px;font-weight:600;text-decoration:none}
.skip:focus{top:12px}
.wrap{max-width:1200px;margin:0 auto;padding-inline:var(--gutter)}
.mono{font-family:var(--f-mono)}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ───────── navegación ───────── */
.nav{position:fixed;inset:0 0 auto;z-index:50;height:calc(var(--nav-h) + env(safe-area-inset-top,0px));padding-top:env(safe-area-inset-top,0px);transition:background .3s,backdrop-filter .3s,border-color .3s;border-bottom:1px solid transparent}
.nav.solid{background:rgba(4,7,13,.78);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-color:rgba(255,255,255,.06)}
.nav .in{height:var(--nav-h);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;padding-inline:var(--gutter);max-width:1440px;margin:0 auto}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;justify-self:start}
.brand img{width:28px;height:auto}
.wordmark{font-family:var(--f-display);font-stretch:125%;font-weight:700;letter-spacing:.22em;font-size:.95rem;white-space:nowrap}
.wordmark .tm{font-family:var(--f-body);font-size:.55em;font-weight:500;letter-spacing:0;margin-left:2px;vertical-align:super;line-height:0;opacity:.8}
.wordmark b{font-weight:700;color:var(--cyan)}
.menu{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.menu a{display:block;padding:8px 14px;border-radius:4px;text-decoration:none;font-size:.875rem;font-weight:500;transition:background .2s}
.menu a:hover{background:rgba(255,255,255,.09)}
.nav .end{justify-self:end;display:flex;gap:4px;align-items:center}
.nav .end a,.nav .end button{padding:8px 14px;border-radius:4px;text-decoration:none;font-size:.875rem;font-weight:500;background:none;border:0;color:inherit;font-family:inherit;cursor:pointer}
.nav .end a:hover,.nav .end button:hover{background:rgba(255,255,255,.09)}
.nav .open-menu{display:none}
/* versión clara de la barra (páginas legales) */
.nav.light{background:rgba(255,255,255,.9);color:var(--ink);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-color:var(--line)}
.nav.light .menu a:hover,.nav.light .end a:hover{background:rgba(11,18,32,.06)}
.nav.light .wordmark b{color:var(--action)}

/* panel lateral (móvil y "Menú") */
.drawer{position:fixed;inset:0;z-index:60;visibility:hidden}
.drawer .scrim{position:absolute;inset:0;background:rgba(0,0,0,.4);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);opacity:0;transition:opacity .3s}
.drawer .panel{position:absolute;inset:0 0 0 auto;width:min(340px,100%);background:var(--paper);color:var(--ink);padding:calc(16px + env(safe-area-inset-top,0px)) 24px 24px;transform:translateX(100%);transition:transform .35s cubic-bezier(.2,.8,.2,1);overflow-y:auto;display:flex;flex-direction:column}
.drawer.open{visibility:visible}
.drawer.open .scrim{opacity:1}
.drawer.open .panel{transform:none}
.drawer .close{align-self:flex-end;width:40px;height:40px;border-radius:4px;border:0;background:none;cursor:pointer;color:var(--ink);font-size:1.5rem;line-height:1}
.drawer .close:hover{background:var(--mist)}
.drawer ul{list-style:none;margin:8px 0 0;padding:0}
.drawer li a{display:block;padding:12px 14px;border-radius:4px;text-decoration:none;font-weight:500}
.drawer li a:hover{background:var(--mist)}
.drawer .small{margin-top:auto;padding:16px 14px 0;font-size:.8125rem;color:var(--ink-2);border-top:1px solid var(--line)}
.drawer .small a{display:inline;padding:0;color:var(--ink-2)}

/* ───────── botones ───────── */
.btn{display:inline-flex;align-items:center;justify-content:center;min-width:220px;min-height:44px;padding:10px 26px;border-radius:4px;font-family:var(--f-body);font-weight:500;font-size:.9375rem;text-decoration:none;border:0;cursor:pointer;transition:background .2s,transform .2s}
.btn.primary{background:var(--action);color:#fff}
.btn.primary:hover{background:var(--action-hover)}
.btn.light{background:rgba(244,246,249,.82);color:var(--ink);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.btn.light:hover{background:#fff}
.btn.dark{background:rgba(11,18,32,.82);color:#fff}
.btn.dark:hover{background:var(--ink)}
.btn.outline{background:none;color:var(--ink);box-shadow:inset 0 0 0 2px var(--ink)}
.btn.outline:hover{background:var(--ink);color:#fff}

/* ───────── paneles a pantalla completa ───────── */
.panel-full{position:relative;min-height:100vh;min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:space-between;text-align:center;padding:calc(var(--nav-h) + env(safe-area-inset-top,0px) + 7vh) var(--gutter) calc(6vh + env(safe-area-inset-bottom,0px));overflow:hidden;scroll-snap-align:start;isolation:isolate}
.panel-full .art{position:absolute;inset:0;z-index:-1;pointer-events:none}
.panel-full .art svg,.panel-full .art canvas{width:100%;height:100%}
.panel-full .copy{max-width:52rem;display:grid;gap:12px;justify-items:center}
.panel-full .kicker{font-family:var(--f-mono);font-size:.75rem;letter-spacing:.18em;text-transform:uppercase;color:var(--on-dark-2)}
.panel-full h1{font-size:clamp(2.5rem,7vw,5rem);font-stretch:118%;font-weight:600;letter-spacing:-.01em}
.panel-full h2{font-size:clamp(2.1rem,5vw,3.25rem);font-stretch:115%;font-weight:600;letter-spacing:-.005em}
.panel-full .sub{font-size:clamp(1rem,1.6vw,1.1875rem);color:var(--on-dark-2);max-width:36em}
.panel-full .sub a{text-underline-offset:3px}
.panel-full .stack{font-family:var(--f-mono);font-size:.8125rem;color:var(--on-dark-3);letter-spacing:.02em}
.actions{display:flex;flex-wrap:wrap;gap:16px 24px;justify-content:center}
.panel-full .actions{width:100%}

/* franja de datos bajo el hero */
.facts{display:flex;gap:clamp(24px,6vw,72px);justify-content:center;flex-wrap:wrap;margin-bottom:28px}
.facts div{display:grid;gap:2px}
.facts strong{font-family:var(--f-display);font-stretch:112%;font-size:1.375rem;font-weight:600}
.facts span{font-size:.8125rem;color:var(--on-dark-2)}
.scroll-cue{width:22px;height:34px;border-radius:12px;border:1.5px solid rgba(255,255,255,.45);position:relative;margin:22px auto 0}
.scroll-cue::after{content:"";position:absolute;left:50%;top:7px;width:3px;height:7px;margin-left:-1.5px;border-radius:2px;background:#fff;animation:cue 1.8s ease-in-out infinite}
@keyframes cue{0%{opacity:0;transform:translateY(0)}40%{opacity:1}100%{opacity:0;transform:translateY(10px)}}

.hero-legal{position:absolute;left:var(--gutter);bottom:calc(14px + env(safe-area-inset-bottom,0px));margin:0;font-size:.75rem;color:var(--on-dark-3)}
.hero-legal a{color:var(--on-dark-2);text-underline-offset:2px}
@media (max-width:640px){.hero-legal{position:static;margin-top:16px}}

/* fondos de panel */
.bg-hero{background:radial-gradient(120% 80% at 50% 110%,#0A3D91 0%,rgba(10,61,145,.25) 35%,transparent 65%),var(--void)}
.bg-ia{background:radial-gradient(90% 70% at 50% 62%,rgba(0,141,255,.28),transparent 60%),var(--night)}
.bg-auto{background:linear-gradient(180deg,var(--void) 0%,#06101F 100%)}
.bg-erp{background:radial-gradient(100% 80% at 20% 100%,rgba(10,61,145,.55),transparent 60%),var(--night)}
.bg-datos{background:linear-gradient(180deg,#05090F 0%,#071226 100%)}
.bg-int{background:radial-gradient(80% 60% at 80% 40%,rgba(0,212,255,.16),transparent 60%),var(--void)}

/* animaciones de las ilustraciones */
.flow{stroke-dasharray:4 14;animation:dash 3s linear infinite}
@keyframes dash{to{stroke-dashoffset:-72}}
.pulse{animation:pulse 3.2s ease-in-out infinite;transform-box:fill-box;transform-origin:center}
@keyframes pulse{0%,100%{opacity:.35;transform:scale(.9)}50%{opacity:1;transform:scale(1.08)}}
.spin{animation:spin 60s linear infinite;transform-origin:600px 520px}
.spin.rev{animation-direction:reverse;animation-duration:90s}
@keyframes spin{to{transform:rotate(360deg)}}
.rise{animation:rise 4s ease-in-out infinite;transform-box:fill-box;transform-origin:bottom}
@keyframes rise{0%,100%{transform:scaleY(.82)}50%{transform:scaleY(1)}}

/* revelado suave al entrar en pantalla */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .9s cubic-bezier(.2,.8,.2,1),transform .9s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

/* ───────── secciones claras ───────── */
.light-sec{background:var(--paper);color:var(--ink);padding-block:clamp(72px,11vw,128px)}
.light-sec.mist{background:var(--mist)}
.sec-head{display:grid;gap:14px;max-width:46rem;margin-bottom:clamp(36px,5vw,56px)}
.sec-head.center{margin-inline:auto;text-align:center;justify-items:center}
.eyebrow{font-family:var(--f-mono);font-size:.75rem;letter-spacing:.16em;text-transform:uppercase;color:var(--action)}
.sec-head h2{font-size:clamp(2rem,4.2vw,3rem);font-stretch:115%;font-weight:600}
.sec-head p{color:var(--ink-2);font-size:1.125rem}

/* método */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;list-style:none;margin:0;padding:0;counter-reset:s}
.steps li{position:relative;padding:28px 22px 0 0;display:grid;gap:8px;align-content:start}
.steps li::before{counter-increment:s;content:"0" counter(s);font-family:var(--f-mono);font-size:.8125rem;color:var(--action)}
.steps li::after{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--line)}
.steps li:first-child::after{background:var(--grad)}
.steps h3{font-size:1.125rem;font-stretch:108%}
.steps p{color:var(--ink-2);font-size:.9375rem}
.steps .out{font-family:var(--f-mono);font-size:.75rem;color:var(--ink)}

/* industrias */
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tile{position:relative;border-radius:8px;overflow:hidden;background:var(--ink);color:var(--on-dark);aspect-ratio:3/4;display:flex;flex-direction:column;justify-content:flex-end;padding:22px;isolation:isolate}
.tile svg{position:absolute;inset:0;width:100%;height:100%;z-index:-1}
.tile h3{font-size:1.25rem;font-stretch:112%}
.tile p{color:var(--on-dark-2);font-size:.9375rem;margin-top:6px}

/* por qué */
.why{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:8px;overflow:hidden}
.why div{background:var(--paper);padding:32px;display:grid;gap:8px;align-content:start}
.why h3{font-size:1.25rem;font-stretch:108%}
.why p{color:var(--ink-2)}

/* contacto */
.contact{display:grid;grid-template-columns:1fr 1.15fr;gap:clamp(32px,6vw,80px);align-items:start}
.contact>*{min-width:0}
.channels{display:grid;gap:10px;margin-top:28px}
.channels div{display:flex;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.channels span:first-child{font-family:var(--f-mono);font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2)}
.channels span:last-child,.channels a{text-align:right;overflow-wrap:anywhere;font-weight:500}
.pending{color:#B4540A}
form.lead{display:grid;grid-template-columns:1fr 1fr;gap:16px}
form.lead .full{grid-column:1/-1}
.field{display:grid;gap:6px}
.field label{font-size:.875rem;font-weight:500}
.field input,.field textarea,.field select{width:100%;font:inherit;font-size:1rem;color:var(--ink);background:var(--mist);border:1px solid transparent;border-radius:4px;padding:12px 14px;transition:border-color .2s,background .2s}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--action);background:#fff}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.875rem;color:var(--ink-2)}
.check input{margin-top:3px;width:18px;height:18px;accent-color:var(--action);flex:none}
.form-note{font-size:.8125rem;color:var(--ink-2)}
.form-msg{font-size:.875rem;font-weight:500;color:var(--action);min-height:1.4em}

/* ───────── pie y letra pequeña ───────── */
.foot{background:var(--paper);color:var(--ink-2);border-top:1px solid var(--line);padding:40px 0 calc(28px + env(safe-area-inset-bottom,0px));font-size:.8125rem}
.foot .links{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 20px;list-style:none;margin:0;padding:0}
.foot .links a{text-decoration:none;color:var(--ink-2)}
.foot .links a:hover{color:var(--ink)}
.foot .links .arrep{color:var(--ink);font-weight:600}
.fine{max-width:62rem;margin:28px auto 0;display:grid;gap:10px;font-size:.75rem;line-height:1.55;color:#6B778A;text-align:left}
.fine p a{color:inherit}
.fine .ph{color:#8A4A06}
.foot .legal-id{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 16px;margin-top:20px;font-size:.75rem}

/* ───────── páginas legales ───────── */
.doc{background:var(--paper);color:var(--ink);padding:calc(var(--nav-h) + env(safe-area-inset-top,0px) + 56px) 0 96px}
.doc .wrap{max-width:820px}
.doc .crumb{font-size:.8125rem;color:var(--ink-2);margin-bottom:20px}
.doc .crumb a{color:var(--ink-2)}
.doc h1{font-size:clamp(2rem,4.5vw,2.75rem);font-stretch:112%;margin-bottom:10px}
.doc .meta{font-family:var(--f-mono);font-size:.75rem;color:var(--ink-2);margin-bottom:28px}
.doc h2{font-size:1.25rem;font-stretch:106%;margin:40px 0 12px}
.doc h3{font-size:1.0625rem;margin:24px 0 8px}
.doc p,.doc li{color:#2A3648;margin:0 0 12px}
.doc ul,.doc ol{padding-left:1.3em;margin:0 0 12px}
.doc a{color:var(--action)}
.notice{border-left:3px solid #E08A1E;background:#FFF6EA;padding:14px 18px;border-radius:0 6px 6px 0;font-size:.9375rem;color:#5A3A0B;margin-bottom:28px}
.notice strong{color:#3E2806}
.ph{background:#FFF1DC;color:#8A4A06;padding:0 4px;border-radius:3px;font-family:var(--f-mono);font-size:.875em}
.legal-nav{display:flex;flex-wrap:wrap;gap:8px;margin:48px 0 0;padding-top:24px;border-top:1px solid var(--line)}
.legal-nav a{font-size:.875rem;padding:8px 12px;border:1px solid var(--line);border-radius:4px;text-decoration:none;color:var(--ink)}
.legal-nav a:hover,.legal-nav a[aria-current]{border-color:var(--ink)}
table.simple{width:100%;border-collapse:collapse;font-size:.9375rem;margin:8px 0 16px}
table.simple th,table.simple td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:top}
table.simple th{font-weight:600}
.table-scroll{overflow-x:auto}

/* ───────── responsive ───────── */
@media (max-width:1000px){
  .menu{display:none}
  .nav .open-menu{display:inline-block}
  .nav .end .hide-sm{display:none}
  .steps{grid-template-columns:1fr 1fr;row-gap:32px}
  .tiles{grid-template-columns:1fr 1fr}
  .contact{grid-template-columns:1fr}
}
@media (max-width:640px){
  .panel-full{padding-top:calc(var(--nav-h) + env(safe-area-inset-top,0px) + 5vh)}
  .actions .btn{width:100%;min-width:0}
  .steps{grid-template-columns:1fr}
  .tiles{grid-template-columns:1fr 1fr;gap:10px}
  .tile{padding:16px;aspect-ratio:4/5}
  .tile p{display:none}
  .why{grid-template-columns:1fr}
  .why div{padding:24px}
  form.lead{grid-template-columns:1fr}
  .facts{gap:20px 28px}
  .facts strong{font-size:1.125rem}
}