/* ============================================================
   OPTIC - Sistema de diseño
   Paleta derivada del logo: navy #000b1f / focal #0067fe / halo #93cdff
   Ritmo de secciones: oscuro y claro alternados.
   Geometría: esquina recta en todo el sistema.
   ============================================================ */
:root{
  /* Superficies - modo oscuro (por defecto) */
  --s-000:#04070E;
  --s-100:#070C18;
  --s-200:#0A1120;
  --s-300:#0E1729;

  /* Texto */
  --fg:#E9F0F8;
  --fg-2:#96A6BC;
  --fg-3:#5E7089;

  /* Acento único */
  --beam:#0067FE;
  --beam-lit:#3D95FF;
  --halo:#93CDFF;

  /* Líneas */
  --line:rgba(147,205,255,.11);
  --line-2:rgba(147,205,255,.20);

  /* Marca (heredables hacia el shadow tree de <use>) */
  --mark-ink:#E9F0F8;
  --mark-beam:#3D95FF;
  --mark-thin:#93CDFF;
  --mark-focal:#0067FE;

  /* Tipografía */
  --sans:'Instrument Sans',system-ui,sans-serif;
  --mono:'Geist Mono',ui-monospace,monospace;

  /* Motion */
  --e-out:cubic-bezier(.23,1,.32,1);
  --e-io:cubic-bezier(.77,0,.175,1);

  --gutter:clamp(20px,5vw,72px);
  --max:1380px;
}

/* ---- Inversión: secciones claras ---- */
.inv{
  --s-000:#FFFFFF;
  --s-100:#F3F6FB;
  --s-200:#E9EFF8;
  --s-300:#DCE5F2;

  --fg:#060B16;
  --fg-2:#4C5C73;
  --fg-3:#68798F;

  --halo:#0057D6;

  --line:rgba(6,11,22,.11);
  --line-2:rgba(6,11,22,.20);

  --mark-ink:#0B1424;
  --mark-beam:#0067FE;
  --mark-thin:#4C9BFF;
  --mark-focal:#0067FE;

  background:var(--s-000);
  color:var(--fg);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--s-000);color:var(--fg);
  font-family:var(--sans);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.03em;line-height:1.02}
p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--beam);color:#fff}
:focus-visible{outline:2px solid var(--beam);outline-offset:3px}

.wrap{max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}

/* Grano: solo sobre superficies oscuras */
.grain{
  position:fixed;inset:0;z-index:200;pointer-events:none;
  opacity:.26;mix-blend-mode:overlay;
  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='140' height='140' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}

.tag{
  font-family:var(--mono);font-size:11px;font-weight:400;
  letter-spacing:.22em;text-transform:uppercase;color:var(--halo);
}

/* ============================================================
   BOTONES - azul con degradado plateado, borde neutro
   ============================================================ */
.btn{
  position:relative;overflow:hidden;isolation:isolate;
  display:inline-flex;align-items:center;justify-content:center;
  height:54px;padding:0 28px;border-radius:0;
  font-size:14px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  transition:transform .18s var(--e-out),box-shadow .3s var(--e-out),border-color .22s var(--e-out);
  will-change:transform;
}
.btn .lbl{
  position:relative;z-index:3;display:inline-flex;align-items:center;gap:10px;
  transition:color .26s var(--e-out);
}
.btn .arw{
  display:inline-block;width:14px;height:1.5px;background:currentColor;position:relative;
  transition:transform .34s var(--e-out);
}
.btn .arw::after{
  content:'';position:absolute;right:0;top:50%;width:6px;height:6px;
  border-top:1.5px solid currentColor;border-right:1.5px solid currentColor;
  transform:translateY(-50%) rotate(45deg);
}
.btn:active{transform:translateY(1px) scale(.99)}

/* Primario: azul con placa plateada encima */
.btn-primary{
  color:#fff;
  border:1px solid rgba(228,236,246,.30);
  background:
    linear-gradient(104deg,rgba(255,255,255,.50) 0%,rgba(255,255,255,.16) 22%,rgba(255,255,255,.02) 40%,rgba(255,255,255,0) 56%),
    linear-gradient(180deg,#4E9DFF 0%,#0F72FE 44%,#0048B8 100%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.62),
    inset 0 -1px 0 rgba(0,20,60,.35),
    0 14px 30px -16px rgba(0,66,170,.85);
  text-shadow:0 1px 0 rgba(0,32,88,.32);
}
/* Barrido plateado permanente, discreto */
.btn-primary::before{
  content:'';position:absolute;inset:-1px;z-index:2;pointer-events:none;
  background:linear-gradient(100deg,transparent 34%,rgba(255,255,255,.16) 45%,rgba(255,255,255,.78) 50%,rgba(255,255,255,.16) 55%,transparent 66%);
  mix-blend-mode:screen;
  transform:translateX(-130%) skewX(-14deg);
  animation:sheen 6.2s var(--e-io) 1.4s infinite;
}
/* Barrido plateado fuerte en hover */
.btn-primary::after{
  content:'';position:absolute;inset:-1px;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.55),rgba(255,255,255,.06) 46%,rgba(255,255,255,0) 62%);
  opacity:0;transition:opacity .3s var(--e-out);
}
.btn-ghost{
  border:1px solid var(--line-2);color:var(--fg);background:transparent;
}
.btn-ghost::before{
  content:'';position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,#F7FAFF,#C6D2E2);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .42s var(--e-out);
}

@keyframes sheen{
  0%{transform:translateX(-130%) skewX(-14deg)}
  22%{transform:translateX(130%) skewX(-14deg)}
  100%{transform:translateX(130%) skewX(-14deg)}
}

@media (hover:hover) and (pointer:fine){
  .btn-primary:hover{
    border-color:rgba(240,246,255,.62);
    box-shadow:
      inset 0 1px 0 rgba(255,255,255,.8),
      inset 0 -1px 0 rgba(0,20,60,.4),
      0 18px 38px -16px rgba(0,80,200,.95);
  }
  .btn-primary:hover::after{opacity:1}
  .btn-ghost:hover{border-color:var(--fg)}
  .btn-ghost:hover::before{transform:scaleX(1)}
  .btn-ghost:hover .lbl{color:#060B16}
  .btn:hover .arw{transform:translateX(5px)}
}
.btn-sm{height:44px;padding:0 20px;font-size:13px}

/* ============================================================
   NAVEGACIÓN - se adapta al tono de la sección que tiene debajo
   ============================================================ */
.nav{
  position:fixed;inset:0 0 auto;z-index:100;height:76px;
  display:flex;align-items:center;background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .35s var(--e-out),border-color .35s var(--e-out),
             height .35s var(--e-out),color .35s var(--e-out);
  color:#E9F0F8;
  --mark-ink:#E9F0F8;--mark-beam:#3D95FF;--mark-thin:#93CDFF;
}
.nav.is-stuck{height:64px;background:rgba(4,7,14,.80);backdrop-filter:blur(18px) saturate(160%);
  -webkit-backdrop-filter:blur(18px) saturate(160%);border-bottom-color:rgba(147,205,255,.12)}
.nav.on-light{color:#060B16;--mark-ink:#0B1424;--mark-beam:#0067FE;--mark-thin:#4C9BFF}
.nav.on-light.is-stuck{background:rgba(255,255,255,.84);border-bottom-color:rgba(6,11,22,.10)}

.nav .wrap{display:flex;align-items:center;gap:40px;width:100%}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand .mark{width:26px;height:26px}
.brand .word{font-size:15px;font-weight:500;letter-spacing:.44em;text-indent:.44em}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:auto}
.nav-links a{
  position:relative;font-size:13.5px;opacity:.72;
  transition:opacity .2s var(--e-out);padding-block:4px;
}
.nav-links a::after{
  content:'';position:absolute;left:0;bottom:0;width:100%;height:1px;background:currentColor;
  transform:scaleX(0);transform-origin:right center;
  transition:transform .34s var(--e-out);
}
@media (hover:hover) and (pointer:fine){
  .nav-links a:hover{opacity:1}
  .nav-links a:hover::after{transform:scaleX(1);transform-origin:left center}
}
.nav-cta{flex-shrink:0}
.nav .btn-primary{color:#fff}

.burger{display:none;width:44px;height:44px;margin-left:auto;align-items:center;justify-content:center;position:relative;z-index:110}
.burger i{display:block;width:22px;height:1.5px;background:currentColor;position:relative;transition:background-color .2s}
.burger i::before,.burger i::after{content:'';position:absolute;left:0;width:22px;height:1.5px;background:currentColor;
  transition:transform .32s var(--e-out)}
.burger i::before{top:-7px}.burger i::after{top:7px}
.nav.open .burger i{background:transparent}
.nav.open .burger i::before{transform:translateY(7px) rotate(45deg)}
.nav.open .burger i::after{transform:translateY(-7px) rotate(-45deg)}

.mobile-menu{
  position:fixed;inset:0;z-index:99;background:#04070E;
  display:flex;flex-direction:column;justify-content:center;gap:6px;
  padding:0 var(--gutter);
  opacity:0;visibility:hidden;transform:translateY(-12px);
  transition:opacity .3s var(--e-out),transform .38s var(--e-out),visibility .3s;
}
.mobile-menu.open{opacity:1;visibility:visible;transform:none}
.mobile-menu a{font-size:clamp(1.5rem,7vw,2.1rem);font-weight:600;letter-spacing:-.03em;
  color:#E9F0F8;padding:10px 0;opacity:0;transform:translateY(14px);
  transition:opacity .5s var(--e-out),transform .5s var(--e-out)}
.mobile-menu.open a{opacity:1;transform:none}
.mobile-menu .btn{margin-top:26px;align-self:flex-start;font-size:14px;font-weight:600;
  letter-spacing:.02em;padding:0 28px;color:#fff;opacity:0;transform:translateY(14px)}
.mobile-menu.open .btn{opacity:1;transform:none}

@media(max-width:1080px){
  .nav-links,.nav-cta{display:none}
  .burger{display:flex}
}

/* ============================================================
   HERO - oscuro
   ============================================================ */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;
  padding-top:116px;padding-bottom:64px;overflow:hidden;background:var(--s-000)}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.hero-bg .beam{
  position:absolute;top:-10%;right:-6%;width:76vw;height:76vw;max-width:1150px;max-height:1150px;
  background:radial-gradient(circle at 50% 50%,rgba(0,103,254,.30) 0%,rgba(0,103,254,.13) 28%,
    rgba(0,103,254,.04) 48%,transparent 68%);
  filter:blur(10px);animation:drift 18s ease-in-out infinite alternate;
}
@keyframes drift{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(-2.5%,2%,0) scale(1.06)}}
.hero-bg .floor{position:absolute;inset:auto 0 0;height:42%;
  background:linear-gradient(to top,var(--s-000),transparent)}
.hero .wrap{position:relative;z-index:2;width:100%}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.42fr) minmax(0,.78fr);
  gap:clamp(32px,5vw,80px);align-items:center}
.hero-eyebrow{display:flex;align-items:center;gap:14px;margin-bottom:26px}
.hero-eyebrow .rule{width:0;height:1px;background:var(--line-2);
  transition:width .9s var(--e-out) .1s}
.hero-eyebrow.in .rule{width:44px}
.hero h1{font-size:clamp(2rem,3.5vw,3.05rem);letter-spacing:-.038em;line-height:1.06;margin-bottom:26px}
.hero h1 .lit{color:var(--halo)}
/* Revelado por línea */
.ln{display:block;overflow:hidden;padding-bottom:.1em;margin-bottom:-.1em}
.ln>span{display:block;transform:translateY(108%);
  transition:transform .9s var(--e-out)}
h1.in .ln>span{transform:none}
.hero-sub{font-size:clamp(1rem,1.2vw,1.125rem);color:var(--fg-2);max-width:46ch;
  margin-bottom:38px;line-height:1.62}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}

.instrument{position:relative;display:grid;place-items:center;aspect-ratio:1}
.instrument .mark{width:min(100%,460px);height:auto}
.instrument::before{content:'';position:absolute;width:58%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,rgba(0,103,254,.42),transparent 62%);filter:blur(46px)}
.ring-outer{transform-origin:50% 50%;animation:spin 64s linear infinite}
.ring-inner{transform-origin:50% 50%;animation:spin 44s linear infinite reverse}
.ticks{transform-origin:50% 50%;animation:spin 150s linear infinite}
.focal-halo{animation:breathe 5.5s ease-in-out infinite}
.sweep{transform-origin:50% 50%;animation:spin 7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes breathe{0%,100%{opacity:.42;transform:scale(1)}50%{opacity:.85;transform:scale(1.16)}}

@media(max-width:900px){
  .hero{min-height:auto;padding-top:118px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .instrument{order:-1;max-width:290px;margin-inline:auto}
  .instrument .mark{width:100%}
}

/* ============================================================
   Cabecera de sección + regla animada
   ============================================================ */
.sec-head{margin-bottom:clamp(44px,6vw,72px);max-width:62ch}
.sec-head h2{font-size:clamp(1.75rem,3.3vw,2.7rem);letter-spacing:-.035em;line-height:1.06}
.sec-head p{color:var(--fg-2);margin-top:18px;font-size:16.5px;max-width:56ch}
.draw{display:block;height:1px;background:var(--line-2);margin-bottom:30px;
  transform:scaleX(0);transform-origin:left center;transition:transform 1s var(--e-out)}
.draw.in{transform:scaleX(1)}

/* ============================================================
   MANIFIESTO - claro
   ============================================================ */
.manifesto{padding:clamp(90px,12vw,170px) 0 clamp(104px,13vw,190px)}
.manifesto-lead{font-size:clamp(1.7rem,3.4vw,2.85rem);font-weight:600;letter-spacing:-.035em;
  line-height:1.12;max-width:19ch;margin-bottom:clamp(48px,7vw,86px)}
.manifesto-lead .dim{color:var(--halo)}
.manifesto-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(258px,1fr));
  gap:clamp(28px,4vw,58px)}
.mcol{border-top:1px solid var(--line);padding-top:22px}
.mcol h3{font-family:var(--mono);font-size:12px;font-weight:400;letter-spacing:.18em;
  text-transform:uppercase;color:var(--halo);margin-bottom:14px}
.mcol p{color:var(--fg-2);font-size:15.5px;line-height:1.65}

/* ============================================================
   FLUJO QUIRÚRGICO - oscuro
   ============================================================ */
.flow{padding:clamp(104px,13vw,180px) 0 clamp(90px,12vw,160px);
  background:var(--s-100);border-top:1px solid var(--line-2)}
/* Ajustes del flujo sobre fondo claro */
.inv .panel-media img{opacity:.92;filter:grayscale(1) contrast(1.02)}
.inv .panel-media::after{background:linear-gradient(160deg,rgba(0,103,254,.10),transparent 55%),
  linear-gradient(to top,var(--s-200),transparent 66%)}
.inv .station::before{background:var(--beam)}
.flow-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.25fr);gap:clamp(28px,4vw,64px)}
.stations{display:flex;flex-direction:column}
.station{position:relative;display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:baseline;
  padding:24px 20px 24px 0;text-align:left;width:100%;border-top:1px solid var(--line);
  transition:padding-left .32s var(--e-out)}
.station:last-child{border-bottom:1px solid var(--line)}
.station .idx{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--fg-3);
  transition:color .24s var(--e-out)}
.station .ttl{font-size:clamp(1.05rem,1.7vw,1.35rem);font-weight:600;letter-spacing:-.02em;
  color:var(--fg-3);transition:color .24s var(--e-out)}
.station::before{content:'';position:absolute;left:0;top:-1px;height:1px;width:100%;
  background:var(--beam-lit);transform:scaleX(0);transform-origin:left center;
  transition:transform .5s var(--e-out)}
.station[aria-selected="true"]::before{transform:scaleX(1)}
.station[aria-selected="true"] .ttl{color:var(--fg)}
.station[aria-selected="true"] .idx{color:var(--halo)}
@media (hover:hover) and (pointer:fine){
  .station:not([aria-selected="true"]):hover .ttl{color:var(--fg-2)}
  .station:not([aria-selected="true"]):hover{padding-left:10px}
}
.station-panel{position:relative;border:1px solid var(--line);overflow:hidden;background:var(--s-200)}
.panel-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--s-300)}
.panel-media img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.05);opacity:.42}
.panel-media::after{content:'';position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(0,103,254,.18),transparent 55%),
             linear-gradient(to top,var(--s-200),transparent 62%)}
.panel-body{padding:clamp(22px,3vw,34px)}
.panel-body h3{font-size:clamp(1.25rem,2vw,1.6rem);margin-bottom:14px;letter-spacing:-.03em}
.panel-body p{color:var(--fg-2);font-size:15.5px;line-height:1.65;max-width:52ch}
.station-panel{--animate-duration:.55s}
@media(max-width:880px){.flow-grid{grid-template-columns:1fr}}

/* ============================================================
   HANDS-ON - banda oscura a sangre, con parallax
   ============================================================ */
.hands{position:relative;min-height:88vh;display:flex;align-items:flex-end;overflow:hidden;background:var(--s-000)}
.hands-media{position:absolute;inset:-8% 0;will-change:transform}
.hands-media img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.1) brightness(.5)}
.hands-media::after{content:'';position:absolute;inset:0;
  background:linear-gradient(to top,var(--s-000) 6%,rgba(4,7,14,.72) 46%,rgba(4,7,14,.55) 100%),
             radial-gradient(80% 60% at 78% 30%,rgba(0,103,254,.24),transparent 70%)}
.hands .wrap{position:relative;z-index:2;padding-block:clamp(64px,9vw,110px)}
.hands h2{font-size:clamp(1.85rem,4vw,3.15rem);letter-spacing:-.038em;line-height:1.05;
  max-width:17ch;margin-bottom:28px}
.hands p{color:var(--fg-2);max-width:50ch;font-size:16.5px;margin-bottom:44px}
.sequence{display:flex;flex-wrap:wrap;align-items:center;gap:clamp(10px,2vw,20px)}
.sequence>*{opacity:0;transform:translateY(12px);
  transition:opacity .6s var(--e-out),transform .6s var(--e-out)}
.sequence.in>*{opacity:1;transform:none}
.sequence .step{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--fg);padding:10px 16px;border:1px solid var(--line-2);
  background:rgba(4,7,14,.5);backdrop-filter:blur(6px)}
.sequence .arrow{width:16px;height:1px;background:var(--beam-lit);position:relative}
.sequence .arrow::after{content:'';position:absolute;right:0;top:50%;width:5px;height:5px;
  border-top:1px solid var(--beam-lit);border-right:1px solid var(--beam-lit);
  transform:translateY(-50%) rotate(45deg)}

/* ============================================================
   SUMMIT 2026 - claro
   ============================================================ */
.summit{padding:clamp(90px,12vw,160px) 0}
.summit-top{display:flex;flex-wrap:wrap;gap:32px;justify-content:space-between;align-items:flex-end;
  margin-bottom:clamp(44px,6vw,70px)}
.summit-top h2{font-size:clamp(1.9rem,3.8vw,3rem);letter-spacing:-.038em;line-height:1.04;max-width:16ch}
.summit-data{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));
  border-top:1px solid var(--line-2)}
.datum{padding:30px 26px 30px 0;border-right:1px solid var(--line);position:relative;overflow:hidden}
.datum:last-child{border-right:0}
@media(min-width:641px){
  .datum::before{content:'';position:absolute;left:0;top:0;height:2px;width:100%;background:var(--beam);
    transform:scaleX(0);transform-origin:left center;transition:transform .7s var(--e-out)}
  .datum.in::before{transform:scaleX(1)}
}
.datum dt{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--fg-3);margin-bottom:12px}
.datum dd{margin:0;font-size:clamp(1.2rem,2vw,1.55rem);font-weight:600;letter-spacing:-.03em}
.datum dd small{display:block;font-size:13px;font-weight:400;color:var(--fg-2);letter-spacing:0;margin-top:6px}
.pending{color:var(--beam);border-bottom:1px dashed rgba(0,103,254,.5);padding-bottom:2px}
@media(max-width:640px){.datum{border-right:0;border-bottom:1px solid var(--line);padding-right:0}}

/* ============================================================
   FACULTY - oscuro
   ============================================================ */
.faculty{padding:clamp(90px,12vw,160px) 0;background:var(--s-000);border-top:1px solid var(--line)}
.fac-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line)}
.fac-card{background:var(--s-000);padding:28px 24px 30px}
.fac-slot{position:relative;aspect-ratio:3/4;overflow:hidden;margin-bottom:22px;
  background:radial-gradient(120% 90% at 50% 0%,rgba(0,103,254,.16),transparent 60%),var(--s-200);
  display:grid;place-items:center}
.fac-slot .mark{width:66px;height:66px;opacity:.5;
  transition:transform .9s var(--e-out),opacity .4s var(--e-out)}
@media (hover:hover) and (pointer:fine){
  .fac-card:hover .fac-slot .mark{transform:rotate(180deg) scale(1.08);opacity:.85}
}
.fac-card .spec{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--halo);margin-bottom:10px;display:block}
.fac-card h3{font-size:1.15rem;letter-spacing:-.025em;margin-bottom:8px;color:var(--fg-2)}
.fac-card p{font-size:13.5px;color:var(--fg-3);line-height:1.55}

/* ============================================================
   KNOWLEDGE - claro, bento
   ============================================================ */
.knowledge{padding:clamp(90px,12vw,160px) 0}
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:clamp(12px,1.6vw,20px)}
.tile{position:relative;border:1px solid var(--line);overflow:hidden;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:clamp(22px,2.6vw,32px);min-height:230px;background:var(--s-100);
  transition:border-color .3s var(--e-out),transform .45s var(--e-out)}
.tile-feature{grid-column:span 4;min-height:360px}
.tile-b{grid-column:span 2}
.tile-c{grid-column:span 3}
.tile-d{grid-column:span 3}
.tile-media{position:absolute;inset:0;overflow:hidden}
.tile-media img{width:100%;height:100%;object-fit:cover;filter:grayscale(1);opacity:.85;
  transition:transform 1.1s var(--e-out)}
.tile-media::after{content:'';position:absolute;inset:0;
  background:linear-gradient(to top,var(--s-100) 14%,rgba(243,246,251,.68) 56%,rgba(243,246,251,.28))}
.tile-beam{background:radial-gradient(130% 100% at 12% 100%,rgba(0,103,254,.14),transparent 62%),var(--s-100)}
.tile-inner{position:relative;z-index:2}
.tile .kicker{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--halo);margin-bottom:14px;display:block}
.tile h3{font-size:clamp(1.05rem,1.7vw,1.42rem);letter-spacing:-.028em;line-height:1.18;margin-bottom:10px}
.tile p{color:var(--fg-2);font-size:14.5px;line-height:1.6;max-width:44ch}
@media (hover:hover) and (pointer:fine){
  .tile:hover{border-color:var(--line-2);transform:translateY(-4px)}
  .tile:hover .tile-media img{transform:scale(1.06)}
}
@media(max-width:880px){.bento{grid-template-columns:1fr}
  .tile-feature,.tile-b,.tile-c,.tile-d{grid-column:span 1}}

/* ============================================================
   PARTNERS - oscuro
   ============================================================ */
.partners{padding:clamp(90px,12vw,160px) 0;background:var(--s-100);border-top:1px solid var(--line)}
.tier-lead{position:relative;overflow:hidden;border:1px solid var(--line-2);
  padding:clamp(30px,4vw,52px);margin-bottom:clamp(12px,1.6vw,20px);
  background:radial-gradient(120% 140% at 88% 0%,rgba(0,103,254,.20),transparent 58%),var(--s-200);
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:clamp(24px,4vw,56px);align-items:center}
.tier-lead h3{font-size:clamp(1.4rem,2.4vw,1.95rem);letter-spacing:-.032em;margin-bottom:14px}
.lvl{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  display:block;margin-bottom:16px}
.tier-lead .lvl{color:var(--halo)}
.tier-lead p{color:var(--fg-2);font-size:15.5px;line-height:1.65}
ul.tier-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.tier-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--fg-2);line-height:1.55}
.tier-list li .dash{color:var(--beam-lit);flex-shrink:0}
.tier-row{display:grid;grid-template-columns:1fr 1fr;gap:clamp(12px,1.6vw,20px)}
.tier{position:relative;overflow:hidden;border:1px solid var(--line);
  padding:clamp(26px,3vw,38px);background:var(--s-200);
  transition:border-color .3s var(--e-out)}
.tier .lvl{color:var(--fg-3)}
.tier h3{font-size:1.25rem;letter-spacing:-.028em;margin-bottom:12px}
.tier p{color:var(--fg-2);font-size:14.5px;line-height:1.62}
.tier::after{content:'';position:absolute;left:0;bottom:0;height:2px;width:100%;background:var(--beam);
  transform:scaleX(0);transform-origin:left center;transition:transform .5s var(--e-out)}
@media (hover:hover) and (pointer:fine){
  .tier:hover{border-color:var(--line-2)}
  .tier:hover::after{transform:scaleX(1)}
}
@media(max-width:880px){.tier-lead{grid-template-columns:1fr}.tier-row{grid-template-columns:1fr}}

/* ============================================================
   FAQ - claro
   ============================================================ */
.faq{padding:clamp(90px,12vw,160px) 0}
.faq-grid{display:grid;grid-template-columns:minmax(0,.7fr) minmax(0,1.3fr);
  gap:clamp(28px,5vw,72px);align-items:start}
.faq h2{font-size:clamp(1.75rem,3.2vw,2.5rem);letter-spacing:-.035em;line-height:1.06}
.qa{border-top:1px solid var(--line)}
.qa:last-child{border-bottom:1px solid var(--line)}
.qa summary{list-style:none;cursor:pointer;padding:24px 46px 24px 0;position:relative;
  font-size:clamp(1rem,1.5vw,1.13rem);font-weight:600;letter-spacing:-.018em;
  transition:color .22s var(--e-out),padding-left .3s var(--e-out)}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:'';position:absolute;right:8px;top:50%;width:11px;height:11px;
  border-right:1.5px solid var(--halo);border-bottom:1.5px solid var(--halo);
  transform:translateY(-70%) rotate(45deg);transition:transform .32s var(--e-out)}
.qa[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
@media (hover:hover) and (pointer:fine){
  .qa summary:hover{color:var(--halo);padding-left:8px}
}
.qa-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .36s var(--e-out)}
.qa[open] .qa-body{grid-template-rows:1fr}
.qa-body>div{overflow:hidden}
.qa-body p{color:var(--fg-2);font-size:15.5px;line-height:1.68;max-width:60ch;padding-bottom:26px}
@media(max-width:820px){.faq-grid{grid-template-columns:1fr}}

/* ============================================================
   CIERRE + FOOTER - oscuro
   ============================================================ */
.closer{position:relative;padding:clamp(100px,14vw,180px) 0;text-align:center;overflow:hidden;
  background:var(--s-000);border-top:1px solid var(--line)}
.closer::before{content:'';position:absolute;left:50%;top:12%;transform:translateX(-50%);
  width:min(120vw,1100px);aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,rgba(0,103,254,.24),transparent 62%);filter:blur(20px);
  animation:pulseGlow 9s ease-in-out infinite}
@keyframes pulseGlow{0%,100%{opacity:.75;transform:translateX(-50%) scale(1)}
  50%{opacity:1;transform:translateX(-50%) scale(1.07)}}
.closer .wrap{position:relative;z-index:2}
.closer h2{font-size:clamp(1.7rem,4vw,3.1rem);letter-spacing:-.04em;line-height:1.06;
  max-width:20ch;margin-inline:auto}
.closer h2 .dim{color:var(--halo)}
.closer .sig{font-family:var(--mono);font-size:12px;letter-spacing:.32em;text-transform:uppercase;
  color:var(--halo);margin:34px 0 40px}

.foot{border-top:1px solid var(--line);padding:clamp(52px,7vw,84px) 0 40px;background:var(--s-100)}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));
  gap:clamp(28px,4vw,48px);margin-bottom:56px}
.foot-brand .mark{width:34px;height:34px;margin-bottom:20px}
.foot-brand .word{font-size:16px;font-weight:500;letter-spacing:.44em;text-indent:.44em;
  display:block;margin-bottom:14px}
.foot-brand p{color:var(--fg-3);font-size:13px;line-height:1.6;max-width:34ch}
.foot h4{font-family:var(--mono);font-size:11px;font-weight:400;letter-spacing:.2em;
  text-transform:uppercase;color:var(--fg-3);margin-bottom:18px}
.foot ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.foot ul a{display:inline-block;font-size:14px;color:var(--fg-2);
  transition:color .2s var(--e-out),transform .28s var(--e-out)}
@media (hover:hover) and (pointer:fine){
  .foot ul a:hover{color:var(--halo);transform:translateX(4px)}
}
.foot-base{display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between;align-items:center;
  border-top:1px solid var(--line);padding-top:26px;font-size:12.5px;color:var(--fg-3)}
@media(max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}}

/* ============================================================
   Revelado por scroll
   ============================================================ */
.rv{opacity:0;transform:translateY(24px);
  transition:opacity .75s var(--e-out),transform .75s var(--e-out)}
.rv.in{opacity:1;transform:none}

/* ============================================================
   Movimiento reducido
   ============================================================ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .ring-outer,.ring-inner,.ticks,.focal-halo,.sweep,.hero-bg .beam,.closer::before{animation:none}
  .rv,.rv.in{transform:none}
  .rv{transition:opacity .3s ease}
  .ln>span,h1.in .ln>span{transform:none;transition:opacity .3s ease}
  .sequence>*{transform:none}
  .hands-media{transform:none!important}
  .btn::before{transition:none}
  .btn:hover .arw,.tile:hover,.tile:hover .tile-media img,
  .fac-card:hover .fac-slot .mark,.foot ul a:hover{transform:none}
}


/* ============================================================
   Barra de progreso de lectura
   ============================================================ */
.progress{
  position:fixed;top:0;left:0;height:2px;width:0;z-index:150;pointer-events:none;
  background:linear-gradient(90deg,rgba(147,205,255,.5),#0067FE);
}

/* Revelado por palabra (anime.js parte los h2) */
.split{display:inline-block}
.split .w{display:inline-block;overflow:hidden;vertical-align:top;padding-bottom:.06em;margin-bottom:-.06em}
.split .w>span{display:inline-block;will-change:transform}

/* Latido del punto focal de la marca en tarjetas */
.fac-slot .mark{animation:markFloat 7s ease-in-out infinite}
@keyframes markFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

@media (prefers-reduced-motion:reduce){
  .btn-primary::before{animation:none;opacity:0}
  .fac-slot .mark{animation:none}
  .split .w>span{transform:none!important}
}