@font-face{font-family:"AINTECH Display Next VF";src:url("/brand/typography/display/fonts/variable/AINTECHDisplayNextVF-Regular.woff2") format("woff2");font-weight:300 900;font-style:normal;font-display:swap}
@font-face{font-family:"AINTECH Text 12";src:url("/brand/typography/type-system/fonts/woff2/AINTECHText120110-Regular.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"AINTECH Text 12";src:url("/brand/typography/type-system/fonts/woff2/AINTECHText120110-Bold.woff2") format("woff2");font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:"AINTECH Mono";src:url("/brand/typography/type-system/fonts/woff2/AINTECHMono0110-Regular.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
/*
 * AINA ONE Chat · Experiencia pública
 * Concepto de layout: anidado. Rejilla φ (1.618fr / 1fr); las secciones se apilan
 * como los niveles del símbolo y el símbolo es el único objeto luminoso de la página.
 * Tema único oscuro por decisión de marca (marino, nada en negro, blanco no es color de marca).
 */
:root {
  /* Color · marca AINTECH (variante sobre fondo oscuro) */
  --bg: #030d1c;            /* marino profundo */
  --bg-2: #061326;
  --surface: #0c1c30;
  --surface-2: #11243b;
  --line: rgba(134, 205, 255, .18);
  --line-2: rgba(134, 205, 255, .32);
  --text: #f4f9ff;
  --text-2: #b4cbe3;
  --text-3: #8fa9c4;
  --plata: #c4cbd6;         /* raíz AIN */
  --cubo: #427dfc;          /* AINTECH */
  --icosa: #1dbcb5;         /* AINET */
  --esfera: #86cdff;        /* AINA */
  --genesis: #c9eaff;       /* núcleo */
  --accent: var(--esfera);
  --on-accent: #030d1c;
  --ok: #3ddc97;
  --bad: #ff6b81;

  /* Tipo */
  --f-display: "AINTECH Display Next VF", "AINTECH Display Next", system-ui, sans-serif;
  --f-text: "AINTECH Text 12", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "AINTECH Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --mono-feat: "zero", "tnum";
  --fs-meta: 13px;
  --fs-body: clamp(16px, .95rem + .15vw, 17px);
  --fs-h3: 21px;
  --fs-h2: clamp(28px, 1.3rem + 2vw, 55px);
  --fs-hero: clamp(44px, 1.9rem + 4.6vw, 89px);
  --ls-caps: .14em;

  /* Espacio y forma · Fibonacci */
  --s1: 5px; --s2: 8px; --s3: 13px; --s4: 21px; --s5: 34px; --s6: 55px; --s7: 89px; --s8: 144px;
  --r1: 8px; --r2: 13px; --r3: 21px; --pill: 999px;

  /* Movimiento · intro completa ≤ 1597 ms */
  --t1: 144ms; --t2: 233ms; --t3: 377ms; --t4: 610ms; --t5: 987ms;
  --ease: cubic-bezier(.16, 1, .3, 1);

  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 var(--fs-body)/1.6 var(--f-text);
  -webkit-font-smoothing: antialiased;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  overflow-x: hidden;
}
/* Fondo marino unificado (#030d1c) con halo cenital */
body::after {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(ellipse 64% 48% at 50% 0%, rgba(23, 73, 119, .52), transparent 58%),
    radial-gradient(ellipse 50% 44% at 100% 55%, rgba(23, 75, 152, .17), transparent 52%),
    radial-gradient(ellipse 48% 42% at 0% 75%, rgba(23, 73, 119, .19), transparent 50%),
    var(--bg);
}
body::before {
  content: ""; position: fixed; inset: 0 0 auto; z-index: 10;
  height: env(safe-area-inset-top, 0px); background: var(--bg);
}
img, svg { max-width: 100%; }
a { color: var(--accent); text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 4px; }
::selection { background: rgba(134, 205, 255, .3); color: var(--text); }

.wrap { width: 100%; max-width: 1260px; margin-inline: auto; padding-inline: clamp(0px, 3vw, 34px); }
.skip { position: absolute; left: -999px; top: var(--s3); z-index: 20; padding: var(--s2) var(--s3); background: var(--accent); color: var(--on-accent); border-radius: var(--r1); }
.skip:focus { left: max(16px, env(safe-area-inset-left, 0px)); }

/* Tipografía de rol */
.eyebrow {
  display: inline-flex; align-items: center; gap: var(--s2);
  margin: 0; color: var(--accent);
  font: 700 var(--fs-meta)/1.4 var(--f-text); letter-spacing: var(--ls-caps); text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; box-shadow: 0 0 13px currentColor; }
h1, h2, h3 {
  margin: 0; font-family: var(--f-display); font-weight: 580;
  font-feature-settings: "kern", "liga";
  letter-spacing: -.035em; line-height: 1.05; text-wrap: balance;
}
h1 { font-size: var(--fs-hero); font-weight: 400; letter-spacing: -.035em; line-height: 1.04; }
h1 em { font-style: normal; font-weight: 700; color: var(--accent); }
h2 { font-size: var(--fs-h2); font-weight: 700; letter-spacing: -.03em; }
h3 { font-size: clamp(26px, 1.2rem + 1vw, 34px); letter-spacing: -.03em; }
.lead { margin: 0; max-width: 58ch; color: var(--text-2); font-size: clamp(17px, 1rem + .35vw, 21px); line-height: 1.6; text-wrap: pretty; text-align: justify; text-justify: inter-word; hyphens: auto; }
p, li, dd { text-align: justify; text-justify: inter-word; hyphens: auto; }
.meta { margin: 0; color: var(--text-3); font-size: var(--fs-meta); line-height: 1.5; }

/* Botones: la píldora se reserva a las acciones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s2);
  min-height: 52px; padding: 0 var(--s5); border-radius: var(--pill);
  font: 700 16px/1 var(--f-text); text-decoration: none; cursor: pointer;
  border: 1px solid transparent;
  transition: transform var(--t2) var(--ease), box-shadow var(--t2) var(--ease), background var(--t2) var(--ease);
}
.btn--primary { background: var(--accent); color: var(--on-accent); box-shadow: inset 0 1px 0 rgba(201, 234, 255, .6); }
.btn--primary:hover, .btn--primary:focus-visible { transform: translateY(-1px); box-shadow: 0 0 34px -8px var(--accent), inset 0 1px 0 rgba(201, 234, 255, .6); }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--line-2); }
.btn--ghost:hover, .btn--ghost:focus-visible { background: rgba(134, 205, 255, .08); border-color: var(--accent); }
.btn--sm { min-height: 44px; padding: 0 var(--s4); font-size: 15px; }
.btn svg { width: 16px; height: 16px; }

/* ---------- Cabecera ---------- */
.top {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 9;
  margin-inline: calc(-1 * max(16px, env(safe-area-inset-left, 0px))) calc(-1 * max(16px, env(safe-area-inset-right, 0px)));
  padding-inline: max(16px, env(safe-area-inset-left, 0px)) max(16px, env(safe-area-inset-right, 0px));
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  -webkit-backdrop-filter: blur(13px); backdrop-filter: blur(13px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t3) var(--ease);
}
.top.is-scrolled { border-bottom-color: var(--line); }
.top__in { display: flex; align-items: center; gap: var(--s4); min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: var(--s3); color: var(--plata); text-decoration: none; }
.brand svg, .brand img { display: block; width: 96px; height: auto; }
.brand span { font-size: var(--fs-meta); letter-spacing: var(--ls-caps); text-transform: uppercase; white-space: nowrap; }
.nav { display: flex; align-items: center; gap: var(--s4); margin-left: auto; }
.nav a { color: var(--text-2); text-decoration: none; font-size: 15px; }
.nav a:hover { color: var(--text); }
.nav .lang { color: var(--text-3); font-size: var(--fs-meta); letter-spacing: var(--ls-caps); text-transform: uppercase; }
@media (max-width: 760px) {
  .nav__links, .brand span { display: none; }
}

/* ---------- Símbolo ---------- */
.sym { display: block; width: 100%; height: auto; overflow: visible; }
.sym g { transition: opacity var(--t3) var(--ease), filter var(--t3) var(--ease), transform var(--t4) var(--ease); }
.sym .lv-cube   { --d: 13; }
.sym .lv-icosa  { --d: 8; }
.sym .lv-sphere { --d: 5; }
.sym .lv-core   { --d: 0; }
.sym .lv { transform: translate(calc(var(--px, 0) * var(--d) * 1px), calc(var(--py, 0) * var(--d) * 1px)); }
.sym .front { fill: none; stroke-linecap: round; stroke-linejoin: round; }
.sym .links path { fill: none; stroke-width: 1.6; opacity: 0; transition: opacity var(--t4) var(--ease); }
/* Intro: el contorno tenue ya se ve en reposo; los trazos se encienden de génesis hacia fuera */
.sym--intro .front { stroke-dasharray: 1 1; stroke-dashoffset: 1; animation: draw var(--dur) var(--ease) var(--delay) forwards; }
.sym--intro .lv-sphere .front { --dur: 377ms; --delay: 233ms; }
.sym--intro .lv-icosa  .front { --dur: 610ms; --delay: 377ms; }
.sym--intro .lv-cube   .front { --dur: 610ms; --delay: 610ms; }
.sym--intro .lv-core circle { transform-box: fill-box; transform-origin: center; animation: core 377ms var(--ease) both; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes core { from { transform: scale(0); opacity: 0; } to { transform: scale(1); opacity: 1; } }
/* Nivel activo (sección de niveles) */
.sym[data-level] .lv { opacity: .14; }
.sym[data-level="1"] .lv-cube,
.sym[data-level="2"] .lv-icosa,
.sym[data-level="3"] .lv-sphere,
.sym[data-level="4"] .lv-core { opacity: 1; filter: drop-shadow(0 0 13px currentColor); }
.sym[data-level="4"] .lv { opacity: 1; }
.sym[data-level="4"] .links path { opacity: .7; }
.sym .lv-cube { color: var(--cubo); } .sym .lv-icosa { color: var(--icosa); }
.sym .lv-sphere { color: var(--esfera); } .sym .lv-core { color: var(--genesis); }

/* ---------- Hero ---------- */
.hero { display: grid; grid-template-columns: minmax(0, 1.618fr) minmax(0, 1fr); align-items: center; gap: var(--s6); padding-block: clamp(34px, 7vw, 89px) clamp(55px, 8vw, 144px); }
.hero__copy { display: grid; gap: var(--s4); min-width: 0; }
.hero__copy h1 { margin-block: var(--s2) 0; }
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--s3); margin-top: var(--s3); }
.hero__art { position: relative; justify-self: center; width: min(100%, 466px); }
.hero__art::before { content: ""; position: absolute; inset: 12%; border-radius: 50%; background: radial-gradient(circle, rgba(134, 205, 255, .18), transparent 70%); filter: blur(21px); z-index: -1; }
.legend { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--s2) var(--s4); margin: var(--s4) 0 0; padding: 0; list-style: none; font-size: var(--fs-meta); color: var(--text-2); }
.legend li { display: inline-flex; align-items: center; gap: var(--s2); }
.legend i { width: 9px; height: 9px; border-radius: 50%; background: var(--c); }
@media (max-width: 959px) {
  .hero { grid-template-columns: 1fr; gap: var(--s5); }
  .hero__art { order: -1; width: min(72vw, 300px); }
}

/* ---------- Secciones ---------- */
.section { padding-block: clamp(55px, 9vw, 144px); border-top: 1px solid var(--line); }
.section__head { display: grid; gap: var(--s3); max-width: 760px; margin-bottom: clamp(34px, 5vw, 55px); }

/* Niveles: símbolo fijo + cuatro pasos */
.levels { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.618fr); gap: var(--s6); align-items: start; }
.levels__art { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 89px); }
.levels__art .sym { width: min(100%, 377px); margin-inline: auto; }
.levels__list { display: grid; gap: clamp(21px, 5vh, 55px); margin: 0; padding: 0; list-style: none; counter-reset: lv; }
.level { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: var(--s3) var(--s4); padding-block: var(--s4); min-height: 30vh; align-content: center; opacity: .62; transition: opacity var(--t4) var(--ease); }
.level.is-active { opacity: 1; }
.level__mark { width: 34px; height: 34px; color: var(--c); }
.level__body { display: grid; gap: var(--s2); min-width: 0; }
.level__role { margin: 0; color: var(--text-3); font-size: var(--fs-meta); letter-spacing: var(--ls-caps); text-transform: uppercase; }
.level__line { margin: var(--s2) 0 0; color: var(--c); font: 700 var(--fs-h3)/1.3 var(--f-text); letter-spacing: -.01em; }
.level__text { margin: var(--s2) 0 0; max-width: 52ch; color: var(--text-2); }
@media (max-width: 859px) {
  .levels { grid-template-columns: 1fr; gap: var(--s4); }
  .levels__art { top: calc(env(safe-area-inset-top, 0px) + 68px); z-index: 2; padding-block: var(--s3); background: linear-gradient(var(--bg) 70%, transparent); }
  .levels__art .sym { width: 144px; }
  .level { min-height: 0; opacity: 1; }
}

/* Demo */
.demo { display: grid; grid-template-columns: minmax(0, 1.618fr) minmax(0, 1fr); gap: var(--s5); align-items: start; }
.tasks { display: flex; flex-wrap: wrap; gap: var(--s2); margin: 0 0 var(--s4); padding: 0; border: 0; }
.tasks legend { width: 100%; margin-bottom: var(--s3); color: var(--text-3); font-size: var(--fs-meta); letter-spacing: var(--ls-caps); text-transform: uppercase; }
.task { position: relative; }
.task input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.task span { display: inline-flex; align-items: center; min-height: 44px; padding: 0 var(--s4); border: 1px solid var(--line-2); border-radius: var(--r2); color: var(--text-2); font-size: 15px; transition: background var(--t2), border-color var(--t2), color var(--t2); }
.task input:checked + span { background: rgba(134, 205, 255, .12); border-color: var(--accent); color: var(--text); }
.task input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 3px; }
.run { display: grid; gap: var(--s4); min-width: 0; }
.ask { margin: 0; padding: var(--s3) var(--s4); border-left: 2px solid var(--line-2); color: var(--text); font-size: 17px; }
.ask b { display: block; margin-bottom: var(--s1); color: var(--text-3); font: 700 var(--fs-meta)/1.4 var(--f-text); letter-spacing: var(--ls-caps); text-transform: uppercase; }
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--s2); margin: 0; padding: 0; list-style: none; counter-reset: st; }
.steps li { display: grid; gap: var(--s1); padding-top: var(--s3); border-top: 2px solid var(--line); color: var(--text-3); font-size: var(--fs-meta); line-height: 1.35; counter-increment: st; transition: border-color var(--t2), color var(--t2); }
.steps li::before { content: counter(st); font: 400 var(--fs-meta)/1 var(--f-mono); color: var(--text-3); font-feature-settings: var(--mono-feat); }
.steps li.is-done { border-top-color: var(--accent); color: var(--text); }
.steps time { font: 400 var(--fs-meta)/1 var(--f-mono); color: var(--text-3); font-variant-numeric: tabular-nums; font-feature-settings: var(--mono-feat); }
.output { margin: 0; padding: var(--s4); border: 1px solid var(--line); border-radius: var(--r2); background: rgba(12, 28, 48, .6); color: var(--text); font-size: 16px; line-height: 1.65; white-space: pre-line; }
.output mark { background: rgba(255, 107, 129, .25); color: var(--text); border-bottom: 2px solid var(--bad); border-radius: 2px; padding-inline: 1px; }
.sources { display: grid; gap: var(--s2); margin: 0; padding: 0; list-style: none; }
.sources li { display: flex; gap: var(--s3); align-items: baseline; color: var(--text-2); font-size: 15px; }
.sources li span { flex: none; font: 400 var(--fs-meta)/1 var(--f-mono); color: var(--icosa); font-feature-settings: var(--mono-feat); }

.receipt { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 89px); display: grid; gap: var(--s3); padding: var(--s4); border: 1px solid var(--line-2); border-radius: var(--r3); background: linear-gradient(170deg, var(--surface), var(--bg-2)); box-shadow: 0 34px 89px -34px rgba(0, 0, 0, .7), inset 0 1px 0 rgba(201, 234, 255, .12); min-width: 0; }
.receipt__head { display: flex; justify-content: space-between; align-items: baseline; gap: var(--s3); padding-bottom: var(--s3); border-bottom: 1px dashed var(--line-2); }
.receipt__head strong { font: 580 var(--fs-h3)/1.2 var(--f-display); letter-spacing: -.02em; font-feature-settings: "kern", "liga"; }
.receipt dl { display: grid; gap: var(--s3); margin: 0; }
.receipt dt { color: var(--text-3); font-size: var(--fs-meta); letter-spacing: var(--ls-caps); text-transform: uppercase; }
.receipt dd { margin: var(--s1) 0 0; font: 400 var(--fs-meta)/1.55 var(--f-mono); color: var(--text); word-break: break-all; font-variant-numeric: tabular-nums; font-feature-settings: var(--mono-feat); }
.receipt__actions { display: flex; flex-wrap: wrap; gap: var(--s2); padding-top: var(--s3); border-top: 1px dashed var(--line-2); }
.status { display: grid; grid-template-columns: 21px minmax(0, 1fr); gap: var(--s2); align-items: start; margin: 0; padding: var(--s3); border-radius: var(--r1); background: rgba(134, 205, 255, .08); color: var(--text-2); font-size: 15px; line-height: 1.5; }
.status svg { width: 21px; height: 21px; }
.status[data-state="ok"] { background: rgba(61, 220, 151, .12); color: var(--text); }
.status[data-state="ok"] svg { color: var(--ok); }
.status[data-state="bad"] { background: rgba(255, 107, 129, .12); color: var(--text); }
.status[data-state="bad"] svg { color: var(--bad); }
@media (max-width: 959px) {
  .demo { grid-template-columns: 1fr; }
  .receipt { position: static; }
}
@media (max-width: 520px) {
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: var(--s3); }
}

/* Auditoría en vivo */
.audit { display: grid; grid-template-columns: minmax(0, 1.618fr) minmax(0, 1fr); gap: var(--s5); align-items: start; }
.metrics { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s3); margin: 0; }
.metric { display: grid; gap: var(--s2); padding: var(--s4); border: 1px solid var(--line); border-radius: var(--r2); min-width: 0; }
.metric dt { color: var(--text-3); font-size: var(--fs-meta); letter-spacing: var(--ls-caps); text-transform: uppercase; }
.metric dd { margin: 0; font: 580 clamp(34px, 1.6rem + 1.4vw, 55px)/1 var(--f-display); letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.metric dd small { margin-left: var(--s1); font: 400 16px/1 var(--f-text); color: var(--text-3); letter-spacing: 0; }
.metric p { margin: 0; color: var(--text-3); font-size: var(--fs-meta); line-height: 1.45; }
.checks { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.checks li { display: grid; grid-template-columns: 21px minmax(0, 1fr) auto; gap: var(--s3); align-items: center; padding-block: var(--s3); border-bottom: 1px solid var(--line); font-size: 15px; }
.checks code { font: 400 var(--fs-meta)/1.4 var(--f-text); color: var(--text-2); word-break: break-word; }
.checks svg { width: 18px; height: 18px; color: var(--text-3); }
.checks li[data-ok="1"] svg { color: var(--ok); }
.checks em { font-style: normal; color: var(--text-3); font-size: var(--fs-meta); }
@media (max-width: 959px) { .audit { grid-template-columns: 1fr; } }
@media (max-width: 420px) { .metrics { grid-template-columns: 1fr; } }

/* Cierre y pie */
.closing { display: grid; justify-items: start; gap: var(--s4); }
.closing .lead { max-width: 52ch; }
.foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--s4); padding-block: var(--s5) calc(var(--s5) + env(safe-area-inset-bottom, 0px)); border-top: 1px solid var(--line); color: var(--text-3); font-size: var(--fs-meta); }
.foot nav { display: flex; flex-wrap: wrap; gap: var(--s2) var(--s4); }
.foot a { color: var(--text-2); text-decoration: none; display: inline-flex; align-items: center; min-height: 24px; }
.foot a:hover { color: var(--text); text-decoration: underline; }
.foot__brand { display: grid; gap: var(--s1); }
.foot__brand strong { color: var(--plata); font-weight: 400; letter-spacing: var(--ls-caps); text-transform: uppercase; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .sym .lv { transform: none !important; }
  .sym--intro .front { stroke-dashoffset: 0; }
}
@media (prefers-reduced-transparency: reduce) {
  .top { background: var(--bg); -webkit-backdrop-filter: none; backdrop-filter: none; }
}
@media (forced-colors: active) {
  .btn, .receipt, .metric, .output { border: 1px solid CanvasText; }
}

/* Color por nivel, sin estilos en línea (CSP sin 'unsafe-inline') */
.c-cubo { --c: var(--cubo); } .c-icosa { --c: var(--icosa); }
.c-esfera { --c: var(--esfera); } .c-genesis { --c: var(--genesis); }

/* Refracción Laser Core y proporción áurea en páginas públicas y legales */
.card, .receipt, .metric, .demo__form, .output {
  position: relative;
  border-top-color: rgba(134, 205, 255, 0.38);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.36), inset 0 1px 0 rgba(199, 235, 255, 0.2);
}
.top {
  border-bottom-color: rgba(134, 205, 255, 0.26);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.32);
}