/* ═══════════════════════════════════════════════════════════════════════════
   SMART IARTIFICIAL — Landing cinematográfica "3D scroll"
   Estética: negro + oro "Apple liquid glass". Lujo por sustracción.
   Tokens reutilizados del Design System (colors_and_type.css).
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── FUENTES LOCALES (Inter) — sin CDN, mejor Lighthouse ─────────────────── */
@font-face{font-family:'Inter';font-weight:400;font-style:normal;font-display:swap;
  src:url('../assets/fonts/Inter-Regular.woff2') format('woff2'),
      url('../assets/fonts/Inter-Regular.ttf') format('truetype');}
@font-face{font-family:'Inter';font-weight:500;font-style:normal;font-display:swap;
  src:url('../assets/fonts/Inter-Medium.woff2') format('woff2'),
      url('../assets/fonts/Inter-Medium.ttf') format('truetype');}
@font-face{font-family:'Inter';font-weight:600;font-style:normal;font-display:swap;
  src:url('../assets/fonts/Inter-SemiBold.woff2') format('woff2'),
      url('../assets/fonts/Inter-SemiBold.ttf') format('truetype');}
@font-face{font-family:'Inter';font-weight:700;font-style:normal;font-display:swap;
  src:url('../assets/fonts/Inter-Bold.woff2') format('woff2'),
      url('../assets/fonts/Inter-Bold.ttf') format('truetype');}

/* ─── TOKENS DE MARCA ─────────────────────────────────────────────────────── */
:root{
  --luxe-black:#0a0a0a;
  --gold:#D4AF37;
  --gold-light:#F4E4BA;
  --gold-dark:#996515;
  --coral:#E07A5F;
  --success:#22c55e;

  --grad-gold-text:linear-gradient(135deg,#F4E4BA 0%,#D4AF37 50%,#996515 100%);
  --grad-gold-button:linear-gradient(135deg,#D4AF37 0%,#996515 100%);

  --fg1:#ededed; --fg2:#a1a1aa; --fg3:#71717a;

  --glass-bg:rgba(255,255,255,.05);
  --glass-border:rgba(212,175,55,.20);
  --glass-border-hover:rgba(212,175,55,.30);
  --glass-shadow:0 8px 32px rgba(212,175,55,.10);
  --glow-gold:0 0 20px rgba(212,175,55,.30);

  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;

  --r-btn:12px; --r-card:16px; --r-hero:24px; --r-xl:32px;
  --ease:cubic-bezier(.4,0,.2,1);
  --ease-out:cubic-bezier(.16,1,.3,1);

  --pad:clamp(20px,5vw,80px);
}

*{box-sizing:border-box;margin:0;padding:0;}
html{-webkit-text-size-adjust:100%;}
html,body{background:var(--luxe-black);color:var(--fg1);font-family:var(--font);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  font-feature-settings:'cv11','ss01';}
body{overflow-x:hidden;line-height:1.5;}
a{color:inherit;text-decoration:none;}
img,svg{display:block;max-width:100%;}
::selection{background:rgba(212,175,55,.25);color:#fff;}

/* Lenis */
html.lenis,html.lenis body{height:auto;}
.lenis.lenis-smooth{scroll-behavior:auto!important;}
.lenis.lenis-stopped{overflow:hidden;}

/* ─── VIAJE CINEMATOGRÁFICO — capas de fondo global fijo ───────────────────── */
#cine-video,#cine-poster,#cine{position:fixed;inset:0;width:100vw;height:100vh;height:100dvh;z-index:0;}
#cine-video{display:none;background:#0a0a0a;}
.cine-clip{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:0;transition:opacity .5s linear;will-change:opacity;}
#cine-poster{object-fit:cover;display:none;}
/* Fallback procedural (oculto salvo que fallen video y poster) */
#cine{display:none;
  background:radial-gradient(120% 90% at 50% 40%,#12100c 0%,#0a0a0a 60%,#050505 100%);}
/* Scrim de legibilidad sobre el video/poster (mantiene el texto nítido) */
.scrim{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(90deg,rgba(10,10,10,.72) 0%,rgba(10,10,10,.40) 42%,rgba(10,10,10,.30) 100%);}
/* Grano de película SOLO sobre el canvas de escena, nunca sobre UI/texto */
#grain{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.05;
  mix-blend-mode:overlay;background-repeat:repeat;
  background-size:180px 180px;}
/* Viñeta cinematográfica */
.vignette{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(120% 120% at 50% 45%,transparent 55%,rgba(0,0,0,.55) 100%);}

/* ─── ORBES DORADOS (secciones sin escena / refuerzo) ─────────────────────── */
.orb{position:fixed;border-radius:50%;filter:blur(90px);z-index:0;pointer-events:none;
  opacity:.09;background:radial-gradient(circle,var(--gold) 0%,transparent 70%);
  will-change:transform;}
.orb--1{width:520px;height:520px;top:-120px;left:-80px;animation:drift1 22s var(--ease) infinite alternate;}
.orb--2{width:440px;height:440px;bottom:-140px;right:-90px;opacity:.07;
  background:radial-gradient(circle,var(--gold-dark) 0%,transparent 70%);
  animation:drift2 25s var(--ease) infinite alternate;}
@keyframes drift1{to{transform:translate(80px,60px) scale(1.1);}}
@keyframes drift2{to{transform:translate(-70px,-50px) scale(1.08);}}

/* ─── CURSOR PERSONALIZADO (solo desktop) ─────────────────────────────────── */
.cursor-dot,.cursor-ring{position:fixed;top:0;left:0;z-index:9999;pointer-events:none;
  border-radius:50%;transform:translate(-50%,-50%);will-change:transform;}
.cursor-dot{width:6px;height:6px;background:var(--gold);box-shadow:var(--glow-gold);}
.cursor-ring{width:34px;height:34px;border:1px solid var(--glass-border-hover);
  transition:width .25s var(--ease),height .25s var(--ease),
    border-color .25s var(--ease),background-color .25s var(--ease);}
.cursor-ring.is-hover{width:52px;height:52px;border-color:var(--gold);
  background:rgba(212,175,55,.06);}

/* ─── NAV LIQUID GLASS ────────────────────────────────────────────────────── */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px var(--pad);transition:background .4s var(--ease),
    backdrop-filter .4s var(--ease),border-color .4s var(--ease);
  border-bottom:1px solid transparent;}
.nav.is-scrolled{background:rgba(10,10,10,.55);backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--glass-border);}
.nav__brand{display:flex;align-items:center;gap:11px;font-weight:600;letter-spacing:-.01em;}
.nav__brand>span:last-child{font-size:15px;}
.nav__brand span b{font-weight:700;}

/* ─── LOGO SIA + SHEEN (nav y footer) ─────────────────────────────────────── */
.brand-mark{position:relative;display:inline-block;line-height:0;flex:none;}
.brand-mark img{display:block;width:38px;height:38px;}
.brand-mark__sheen{position:absolute;inset:0;pointer-events:none;mix-blend-mode:screen;
  -webkit-mask:url('../assets/brand/mark-sia-clean.png') center/contain no-repeat;
          mask:url('../assets/brand/mark-sia-clean.png') center/contain no-repeat;
  background:linear-gradient(115deg,transparent 40%,rgba(255,255,255,.9) 50%,transparent 60%);
  background-size:260% 100%;background-position:150% 0;
  animation:sheen 6s ease-in-out infinite;}
@keyframes sheen{0%,12%{background-position:150% 0;}50%{background-position:-60% 0;}88%,100%{background-position:150% 0;}}
.nav__links{display:flex;align-items:center;gap:28px;}
.nav__links a{font-size:14px;color:var(--fg2);position:relative;transition:color .25s var(--ease);}
.nav__links a::after{content:'';position:absolute;left:0;bottom:-5px;width:0;height:1px;
  background:var(--grad-gold-button);transition:width .3s var(--ease);}
.nav__links a:hover{color:var(--fg1);}
.nav__links a:hover::after{width:100%;}
.nav__toggle{display:none;}

/* ─── BOTONES ─────────────────────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 26px;border-radius:var(--r-btn);
  font:600 15px/1 var(--font);cursor:pointer;border:1px solid transparent;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),
    background-color .3s var(--ease),border-color .3s var(--ease);white-space:nowrap;}
.btn svg{width:18px;height:18px;stroke-width:1.8;}
.btn--gold{background:var(--grad-gold-button);color:#1a1206;
  box-shadow:0 4px 14px rgba(212,175,55,.22);font-weight:700;}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(212,175,55,.38);}
.btn--ghost{background:transparent;border:1px solid var(--glass-border);color:var(--gold);}
.btn--ghost:hover{transform:translateY(-2px);border-color:var(--glass-border-hover);
  background:rgba(212,175,55,.06);box-shadow:var(--glow-gold);}
.btn--sm{padding:10px 18px;font-size:13px;}

/* ─── HUD DE ETAPAS (borde derecho) ───────────────────────────────────────── */
.hud{position:fixed;top:50%;right:clamp(14px,2.2vw,34px);transform:translateY(-50%);
  z-index:90;display:flex;flex-direction:column;gap:14px;padding:16px 14px;
  border-radius:var(--r-card);background:var(--glass-bg);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);
  opacity:0;transition:opacity .6s var(--ease);}
.hud.is-visible{opacity:1;}
.hud__item{display:flex;align-items:center;gap:10px;cursor:pointer;}
.hud__dot{width:7px;height:7px;border-radius:50%;flex:none;
  background:rgba(212,175,55,.28);transition:all .35s var(--ease);}
.hud__label{font-size:10px;font-weight:500;letter-spacing:.10em;text-transform:uppercase;
  color:var(--fg3);white-space:nowrap;transition:color .35s var(--ease),opacity .35s var(--ease);
  opacity:.65;}
.hud__item.is-active .hud__dot{background:var(--gold);box-shadow:var(--glow-gold);
  transform:scale(1.35);}
.hud__item.is-active .hud__label{color:var(--gold);opacity:1;}
.hud__item.is-done .hud__dot{background:rgba(212,175,55,.55);}

/* Barra de progreso superior */
.progress-bar{position:fixed;top:0;left:0;height:2px;z-index:101;width:0;
  background:var(--grad-gold-button);box-shadow:0 0 10px rgba(212,175,55,.5);}

/* ─── LAYOUT DE ETAPAS ────────────────────────────────────────────────────── */
.stages{position:relative;z-index:2;}
.stage{position:relative;}
.stage__inner{position:sticky;top:0;min-height:100vh;display:flex;flex-direction:column;
  justify-content:center;padding:120px var(--pad) 100px;}
.stage__inner--center{align-items:center;text-align:center;}

/* alturas de scrub — más largas = viaje más lento y contemplativo */
#stage-arrival{height:190vh;}      /* La llegada */
#stage-problem{height:400vh;}      /* El umbral: corredor limpio → trilogía → 3 cards de a una */
#stage-revelation{height:220vh;}   /* El salón: revelación limpia (espacio primero) */
#stage-intelligence{height:520vh;} /* La inteligencia: 4 cards reveladas de a una */
#stage-suite{height:300vh;}        /* La suite: espacio → copy de autoridad */
#stage-pool{height:240vh;}         /* La piscina: casi todo espacio → una línea */
#stage-ecosystem{height:170vh;}    /* El final: constelación + CTA */

/* Etiquetas / overline */
.label{font-size:11px;font-weight:500;letter-spacing:.10em;text-transform:uppercase;
  color:var(--gold);display:inline-flex;align-items:center;gap:9px;margin-bottom:22px;}
.label::before{content:'';width:26px;height:1px;background:var(--grad-gold-button);}
.stage__inner--center .label{justify-content:center;}
.stage__inner--center .label::before{display:none;}

/* Texto oro (solo en 1-2 palabras) */
.gold{background:var(--grad-gold-text);-webkit-background-clip:text;background-clip:text;
  color:transparent;-webkit-text-fill-color:transparent;}
/* Cada letra partida dentro de una palabra dorada necesita su propio gradiente */
.gold .char{background:var(--grad-gold-text);-webkit-background-clip:text;background-clip:text;
  color:transparent;-webkit-text-fill-color:transparent;}

/* ─── HERO ────────────────────────────────────────────────────────────────── */
.hero__display{font-weight:700;letter-spacing:-.025em;line-height:1.02;
  font-size:clamp(40px,8.4vw,132px);max-width:15ch;margin-bottom:30px;}
.hero__display .word{display:inline-block;}
.hero__display .char{display:inline-block;opacity:0;transform:translateY(0.5em) rotateX(40deg);
  transform-origin:bottom;transition:opacity .6s var(--ease-out),transform .6s var(--ease-out);}
.is-lit .char{opacity:1;transform:translateY(0) rotateX(0);}
.hero__lede{font-size:clamp(16px,1.4vw,19px);color:var(--fg2);max-width:44ch;
  line-height:1.55;margin-bottom:38px;}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;}
.hero__scrollcue{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--fg3);
  font-size:10px;letter-spacing:.14em;text-transform:uppercase;opacity:.7;}
.hero__scrollcue .mouse{width:22px;height:34px;border:1px solid var(--glass-border);
  border-radius:12px;position:relative;}
.hero__scrollcue .mouse::after{content:'';position:absolute;top:6px;left:50%;
  width:3px;height:6px;border-radius:2px;background:var(--gold);
  transform:translateX(-50%);animation:wheel 1.8s var(--ease) infinite;}
@keyframes wheel{0%{opacity:0;top:6px;}40%{opacity:1;}80%{opacity:0;top:16px;}100%{opacity:0;}}

/* ─── REVEAL genérico ─────────────────────────────────────────────────────── */
.reveal{opacity:0;transform:translateY(28px);
  transition:opacity .9s var(--ease-out),transform .9s var(--ease-out);}
.reveal.is-in{opacity:1;transform:none;}
.reveal.d1{transition-delay:.10s;}
.reveal.d2{transition-delay:.20s;}
.reveal.d3{transition-delay:.30s;}

/* ─── EL PROBLEMA ─────────────────────────────────────────────────────────── */
.stage__head{max-width:62ch;margin-bottom:44px;}
.h2{font-weight:700;letter-spacing:-.015em;line-height:1.12;
  font-size:clamp(28px,4vw,52px);}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;width:100%;
  max-width:1180px;align-items:stretch;}
.stat{padding:26px 24px;border-radius:var(--r-card);background:var(--glass-bg);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);
  display:flex;flex-direction:column;
  transition:transform .4s var(--ease),border-color .4s var(--ease),box-shadow .4s var(--ease);}
.stat:hover{transform:translateY(-4px);border-color:var(--glass-border-hover);
  box-shadow:0 16px 48px rgba(212,175,55,.16);}
.stat__num{font-weight:700;letter-spacing:-.02em;line-height:1.02;
  font-size:clamp(28px,2.8vw,40px);margin-bottom:12px;}
.stat__desc{font-size:14.5px;color:var(--fg2);line-height:1.5;margin-bottom:14px;}
.stat__src{font-size:11px;letter-spacing:.04em;color:var(--fg3);margin-top:auto;
  padding-top:12px;border-top:1px solid rgba(255,255,255,.06);}
.stat__src b{color:var(--fg2);font-weight:500;}

/* La etapa El umbral: la H2 más compacta y menos padding para que las 3 cards
   quepan 100% dentro del viewport y se lean a la vez */
#stage-problem .stage__inner{padding-top:92px;padding-bottom:72px;}
#stage-problem .h2{font-size:clamp(23px,3vw,38px);line-height:1.14;}
#stage-problem .stage__head{margin-bottom:32px;}

/* Capas del problema: cards → cierre kinético (misma zona pinneada) */
.problem-cards{transition:opacity .4s var(--ease);}
.problem-kinetic{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  padding:0 var(--pad);opacity:0;pointer-events:none;}

/* Cierre kinético */
.kinetic{position:relative;height:1px;width:100%;max-width:1000px;}
.kinetic__line{position:absolute;left:0;right:0;top:0;text-align:center;
  font-weight:700;letter-spacing:-.02em;line-height:1.1;
  font-size:clamp(30px,5.2vw,68px);opacity:0;transform:translateY(24px) scale(.98);
  transition:opacity .45s var(--ease-out),transform .45s var(--ease-out);}
.kinetic__line.is-active{opacity:1;transform:none;}

/* ─── LA REVELACIÓN (por qué SIA) ─────────────────────────────────────────── */
.rev-wrap{max-width:820px;}
.rev-text{font-size:clamp(16px,1.35vw,19px);color:var(--fg2);line-height:1.65;
  margin:26px 0 40px;}
.rev-text b{color:var(--fg1);font-weight:600;}
.badge-strip{display:flex;flex-wrap:wrap;gap:14px;}
.badge{display:inline-flex;align-items:center;gap:9px;padding:12px 18px;border-radius:var(--r-btn);
  background:var(--glass-bg);border:1px solid var(--glass-border);backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);font-size:13px;font-weight:500;color:var(--fg1);}
.badge svg{width:16px;height:16px;stroke:var(--gold);stroke-width:1.8;flex:none;}
.badge b{background:var(--grad-gold-text);-webkit-background-clip:text;background-clip:text;
  color:transparent;-webkit-text-fill-color:transparent;font-weight:700;}

/* ─── LA INTELIGENCIA (ecosistema) ────────────────────────────────────────── */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;width:100%;
  max-width:1200px;}
.prod{padding:30px 28px;border-radius:var(--r-card);background:var(--glass-bg);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);
  display:flex;flex-direction:column;opacity:0;transform:translateY(28px);
  transition:transform .55s var(--ease-out),border-color .4s var(--ease),
    box-shadow .4s var(--ease),opacity .55s var(--ease-out),filter .55s var(--ease-out);}
.prod.is-in{opacity:1;transform:none;}
/* Revelado segmentado: una card protagonista, las otras atenuadas al 30% */
.prod.is-hero{opacity:1;transform:translateY(-4px);
  border-color:var(--glass-border-hover);box-shadow:0 18px 52px rgba(212,175,55,.20);z-index:2;}
.prod.is-dim{opacity:.3;transform:none;filter:saturate(.6);}
.prod:hover{transform:translateY(-5px);border-color:var(--glass-border-hover);
  box-shadow:0 18px 52px rgba(212,175,55,.18);}
.prod__icon{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  margin-bottom:20px;background:rgba(212,175,55,.08);border:1px solid var(--glass-border);}
.prod__icon svg{width:23px;height:23px;stroke:var(--gold);stroke-width:1.8;fill:none;}
.prod__name{font-weight:600;font-size:20px;letter-spacing:-.01em;margin-bottom:14px;}
.prod__body{font-size:14.5px;color:var(--fg2);line-height:1.6;}
.prod__sub{margin-top:16px;padding-top:16px;border-top:1px solid rgba(255,255,255,.06);
  font-size:13px;color:var(--fg3);line-height:1.55;}
.prod__credit{margin-top:16px;font-size:11px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--gold);opacity:.85;}
.prod__sub .up{color:var(--coral);font-weight:600;}
/* Footnote sobre superficie liquid glass (siempre legible sobre el video) */
.footnote{margin-top:24px;width:100%;text-align:center;}
/* La Inteligencia compacta para que las 3 cards + footnote quepan en el viewport */
#stage-intelligence .stage__inner{padding-top:70px;padding-bottom:44px;}
#stage-intelligence .stage__head{margin-bottom:18px;}
#stage-intelligence .h2{font-size:clamp(22px,2.8vw,38px);}
#stage-intelligence .prod-grid--4{gap:16px;}
#stage-intelligence .prod{padding:17px 19px;}
#stage-intelligence .prod__body{font-size:12.8px;line-height:1.45;}
#stage-intelligence .prod__icon{width:38px;height:38px;margin-bottom:9px;}
#stage-intelligence .prod__icon svg{width:20px;height:20px;}
#stage-intelligence .prod__name{font-size:17px;margin-bottom:7px;}
#stage-intelligence .prod__intro{font-size:12.5px;margin-bottom:7px;}
#stage-intelligence .prod__svcs{gap:6px;}
#stage-intelligence .prod__svcs li{font-size:11.6px;line-height:1.38;}
#stage-intelligence .prod__sub{margin-top:11px;padding-top:11px;font-size:11.5px;}
#stage-intelligence .prod__credit{margin-top:11px;}
#stage-intelligence .prod__cta{margin-top:13px;}
.footnote__glass{display:inline-block;font-size:13.5px;color:var(--fg2);line-height:1.5;
  padding:13px 22px;border-radius:var(--r-btn);
  background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);}
.footnote a{color:var(--gold);border-bottom:1px solid var(--glass-border);padding-bottom:1px;}
.footnote a:hover{border-color:var(--gold);}

/* ─── STAT CARDS: revelado de a una (El umbral) ───────────────────────────── */
.stat{opacity:0;transform:translateY(20px);}
.stat.is-in{opacity:1;transform:none;}

/* ─── ECOSISTEMA: 4 cards (grid 2×2 en desktop) ───────────────────────────── */
.prod-grid--4{grid-template-columns:repeat(2,1fr);max-width:1060px;margin:0 auto;}
.prod__intro{font-size:13.5px;color:var(--fg1);font-weight:600;margin-bottom:12px;}
.prod__svcs{list-style:none;display:flex;flex-direction:column;gap:10px;margin:0;}
.prod__svcs li{font-size:12.8px;color:var(--fg2);line-height:1.5;padding-left:15px;position:relative;}
.prod__svcs li::before{content:'';position:absolute;left:0;top:8px;width:5px;height:5px;
  border-radius:50%;background:var(--grad-gold-button);}
.prod__svcs b{color:var(--fg1);font-weight:600;}
.prod__src{display:block;margin-top:8px;font-size:11px;letter-spacing:.03em;color:var(--fg3);}
.prod__cta{margin-top:18px;align-self:flex-start;}

/* ─── STAGE-COPY: aparece tras el espacio, en glass al borde ──────────────── */
.stage-copy{opacity:0;transform:translateY(24px);
  transition:opacity .9s var(--ease-out),transform .9s var(--ease-out);}
.stage-copy.is-in{opacity:1;transform:none;}

/* El salón: label + una línea corta, abajo-izquierda sobre glass */
.salon-copy{align-self:flex-start;margin-top:auto;max-width:640px;padding:22px 28px;
  border-radius:var(--r-card);background:var(--glass-bg);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);}
.salon-line{font-weight:700;letter-spacing:-.02em;line-height:1.12;
  font-size:clamp(24px,3.4vw,46px);margin-top:8px;}

/* La suite: copy de autoridad en panel glass a la izquierda */
.authority{align-self:flex-start;max-width:560px;padding:30px 32px;
  border-radius:var(--r-card);background:var(--glass-bg);
  backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);}
.authority .h2{font-size:clamp(23px,2.8vw,38px);}
.authority .rev-text{font-size:clamp(14px,1.1vw,16px);margin:16px 0 20px;}
.authority .badge-strip{gap:10px;}
.authority .badge{padding:9px 13px;font-size:12px;}

/* La piscina: una sola línea, abajo-izquierda, glass discreto */
.pool-copy{align-self:flex-start;margin-top:auto;max-width:640px;padding:18px 26px;
  border-radius:var(--r-btn);background:var(--glass-bg);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);}
.pool-line{font-weight:600;letter-spacing:-.01em;line-height:1.25;
  font-size:clamp(20px,2.4vw,32px);}

/* ─── CTA FINAL / FOOTER ──────────────────────────────────────────────────── */
.cta__h{font-weight:700;letter-spacing:-.02em;line-height:1.05;
  font-size:clamp(36px,6.5vw,96px);max-width:14ch;margin-bottom:40px;}
.cta__btns{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;}
.footer{position:relative;z-index:2;padding:70px var(--pad) 54px;text-align:center;
  border-top:1px solid rgba(255,255,255,.06);background:rgba(10,10,10,.6);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);}
.footer__logo{position:relative;display:inline-block;line-height:0;margin:0 auto 22px;}
.footer__lockup{display:block;width:230px;max-width:72%;height:auto;opacity:.95;}
.footer__sheen{position:absolute;inset:0;pointer-events:none;mix-blend-mode:screen;
  -webkit-mask:url('../assets/brand/logo-sia-footer-clean.png') center/contain no-repeat;
          mask:url('../assets/brand/logo-sia-footer-clean.png') center/contain no-repeat;
  background:linear-gradient(115deg,transparent 47%,rgba(255,255,255,.5) 50%,transparent 53%);
  background-size:300% 100%;background-position:150% 0;
  animation:sheen 6s ease-in-out infinite;}
.footer__meta{font-size:14px;color:var(--fg2);margin-bottom:10px;}
.footer__links{font-size:13px;color:var(--fg3);}
.footer__links a{color:var(--gold);}
.footer__links a:hover{text-decoration:underline;}
.footer__fine{margin-top:24px;font-size:11px;color:var(--fg3);opacity:.7;}

/* ─── RESPONSIVE ──────────────────────────────────────────────────────────── */
/* Reserva de espacio para el HUD en etapas con grids anchos (evita solape) */
@media (min-width:901px){
  #stage-problem .stage__inner,
  #stage-intelligence .stage__inner{padding-right:calc(var(--pad) + 168px);}
  /* Texto kinético en zona segura: nunca se solapa con el HUD del borde derecho */
  .problem-kinetic{padding-left:80px;padding-right:240px;}
  .kinetic{max-width:820px;}
}

@media (max-width:900px){
  .stat-grid,.prod-grid{grid-template-columns:1fr;}
  .hud{display:none;}
}
@media (max-width:768px){
  :root{--pad:24px;}
  .nav__links{display:none;}
  .nav__links.is-open{display:flex;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;gap:18px;padding:24px var(--pad);background:rgba(10,10,10,.92);
    backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
    border-bottom:1px solid var(--glass-border);}
  .nav__toggle{display:grid;place-items:center;width:40px;height:40px;
    border-radius:10px;border:1px solid var(--glass-border);background:var(--glass-bg);}
  .nav__toggle svg{width:20px;height:20px;stroke:var(--gold);stroke-width:1.8;}
  .cursor-dot,.cursor-ring{display:none;}
  .orb{display:none;}
  #grain{display:none;}
  /* ── Móvil SIN scrub (póster): apilado estático, un póster por etapa ── */
  html:not(.scrub) #stage-arrival{height:100vh;}
  html:not(.scrub) #stage-problem,html:not(.scrub) #stage-intelligence,
  html:not(.scrub) #stage-suite,html:not(.scrub) #stage-pool,
  html:not(.scrub) #stage-revelation,html:not(.scrub) #stage-ecosystem{height:auto;}
  html:not(.scrub) .stage__inner{position:static;min-height:auto;padding:96px 24px 72px;}
  /* ── Móvil CON scrub: contenido centrado por pantalla + espacio para que el
        clip respire; alturas con viewport ESTABLE (--svh) → sin saltos de la
        barra de dirección. El video hace el scrub por scroll nativo. ── */
  html.scrub .stage__inner{position:static;min-height:calc(var(--svh,1vh)*100);
    padding:88px 24px;justify-content:center;}
  html.scrub #stage-arrival{height:auto;min-height:calc(var(--svh,1vh)*130);}
  html.scrub #stage-problem{height:auto;min-height:calc(var(--svh,1vh)*200);}
  html.scrub #stage-revelation{height:auto;min-height:calc(var(--svh,1vh)*150);}
  html.scrub #stage-intelligence{height:auto;min-height:calc(var(--svh,1vh)*230);}
  html.scrub #stage-suite{height:auto;min-height:calc(var(--svh,1vh)*175);}
  html.scrub #stage-pool{height:auto;min-height:calc(var(--svh,1vh)*160);}
  html.scrub #stage-ecosystem{height:auto;min-height:calc(var(--svh,1vh)*130);}
  /* Textos y cards siempre visibles en modo póster */
  .stage-copy{opacity:1!important;transform:none!important;margin-top:0;}
  .stat{opacity:1;transform:none;}
  .salon-copy,.authority,.pool-copy{max-width:100%;}
  .prod.is-dim,.prod.is-hero{opacity:1;filter:none;transform:none;}
  .hero__display{font-size:clamp(38px,12vw,68px);}
  .kinetic{height:auto;display:flex;flex-direction:column;gap:14px;margin-top:20px;}
  .kinetic__line{position:static;opacity:1;transform:none;text-align:left;
    font-size:clamp(26px,8vw,40px);}
  .cta__btns,.hero__cta{justify-content:flex-start;}
  /* Capas apiladas en flujo normal */
  .problem-kinetic{position:static;opacity:1!important;display:block;margin-top:28px;padding:0;}
  .problem-cards{opacity:1!important;}
  .prod{opacity:1;transform:none;}
  .stage__inner--center{text-align:center;}
  /* Poster estático móvil: canvas fijo congelado en frame representativo (JS) */
}
@media (prefers-reduced-motion:reduce){
  .prod{opacity:1!important;transform:none!important;}
  .problem-kinetic{position:static;opacity:1!important;}
  .problem-cards{opacity:1!important;}
  .stat{opacity:1!important;transform:none!important;}
  .stage-copy{opacity:1!important;transform:none!important;margin-top:0;}
}

/* ─── PREFERENCIA DE MOVIMIENTO REDUCIDO ──────────────────────────────────── */
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important;}
  .brand-mark__sheen,.footer__sheen{display:none;}
  .prod.is-dim,.prod.is-hero{opacity:1!important;filter:none!important;transform:none!important;}
  .char{opacity:1!important;transform:none!important;}
  .reveal{opacity:1!important;transform:none!important;}
  .kinetic__line{opacity:1!important;transform:none!important;position:static;}
  .kinetic{height:auto;display:flex;flex-direction:column;gap:12px;}
  .orb{display:none;}
  .hero__scrollcue{display:none;}
}

/* ─── SIN JAVASCRIPT: revela todo el contenido (crawlers de IA / no-JS) ────── */
html:not(.js) .reveal,
html:not(.js) .stat,
html:not(.js) .stage-copy,
html:not(.js) .prod,
html:not(.js) .kinetic__line,
html:not(.js) .hero__display .char{opacity:1!important;transform:none!important;}
html:not(.js) .problem-cards,
html:not(.js) .problem-kinetic{opacity:1!important;position:static;}
html:not(.js) .hud{opacity:1;}
.noscript-summary{position:relative;z-index:5;max-width:820px;margin:100px auto 0;
  padding:24px var(--pad);color:var(--fg2);font-size:15px;line-height:1.65;}
.noscript-summary p{margin-bottom:12px;}
.noscript-summary strong{color:var(--fg1);font-weight:600;}
.noscript-summary a{color:var(--gold);}

/* ─── FAQ / AEO — acordeón liquid glass ───────────────────────────────────── */
.faq{position:relative;z-index:2;padding:96px var(--pad) 44px;
  background:linear-gradient(180deg,rgba(10,10,10,.72) 0%,#0a0a0a 42%);}
.faq__inner{max-width:860px;margin:0 auto;}
.faq__title{margin:6px 0 34px;font-size:clamp(26px,3.4vw,44px);}
.faq__list{display:flex;flex-direction:column;gap:14px;}
.faq__item{border-radius:var(--r-card);background:var(--glass-bg);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);
  overflow:hidden;transition:border-color .3s var(--ease);}
.faq__item[open]{border-color:var(--glass-border-hover);}
.faq__item summary{list-style:none;cursor:pointer;padding:20px 24px;
  font-weight:600;font-size:clamp(15px,1.5vw,18px);color:var(--fg1);
  display:flex;align-items:center;justify-content:space-between;gap:18px;}
.faq__item summary::-webkit-details-marker{display:none;}
.faq__item summary::after{content:'';width:10px;height:10px;flex:none;margin-top:-4px;
  border-right:2px solid var(--gold);border-bottom:2px solid var(--gold);
  transform:rotate(45deg);transition:transform .3s var(--ease);}
.faq__item[open] summary::after{transform:rotate(-135deg);margin-top:3px;}
.faq__item summary:hover{color:var(--gold);}
.faq__a{padding:0 24px 22px;}
.faq__a p{font-size:14.5px;color:var(--fg2);line-height:1.65;}
.faq__a a{color:var(--gold);border-bottom:1px solid var(--glass-border);}
.faq__a a:hover{border-color:var(--gold);}