/* ═══════════════════════════════════════════════════════════════════════
   ANTICIPA · portafolio
   Mismo mundo visual que la landing: placa de acero oscura y papel.
   Paleta oficial. Sin dependencias: el movimiento es CSS + IntersectionObserver.
   ═══════════════════════════════════════════════════════════════════════ */
:root{
  --tinta:#1d1f20;
  --papel:#f2f2f3;
  --acero:#5980a6;
  --acero-claro:#a9bed3;
  --acero-prof:#26384b;
  --placa:#0b1219;
  --placa-2:#111b25;
  --niebla:rgba(169,190,211,.14);
  --niebla-2:rgba(169,190,211,.32);
  --papel-suave:#5c6672;
  --papel-linea:#cfd5dc;
  --senal:#e0b15a;
  --cond:"Barlow Condensed","Barlow","Helvetica Neue",Arial,sans-serif;
  --sans:"Barlow","Helvetica Neue",Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --chaflan:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,14px 100%,0 calc(100% - 14px));
  --chaflan-g:polygon(0 0,calc(100% - 28px) 0,100% 28px,100% 100%,28px 100%,0 calc(100% - 28px));
  --sale:cubic-bezier(.16,1,.3,1);
}
*{box-sizing:border-box}
html{color-scheme:dark;scroll-behavior:smooth}
body{
  margin:0;background:var(--placa);color:var(--papel);
  font-family:var(--sans);font-size:17px;line-height:1.5;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit}
img{display:block;max-width:100%;height:auto}
:focus-visible{outline:2px solid var(--senal);outline-offset:4px}
h1,h2,h3{font-family:var(--cond);font-weight:800;margin:0;text-wrap:balance;line-height:.92;letter-spacing:-.01em}
p,figure,dl,dd,ol{margin:0}
ol{padding:0;list-style:none}
.ac{color:var(--acero-claro)}
.papel{background:var(--papel);color:var(--tinta)}
.papel .ac{color:var(--acero)}
.env{width:min(1240px,calc(100% - 48px));margin:0 auto}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase}

.btn{
  display:inline-flex;align-items:center;gap:14px;
  font-family:var(--cond);font-weight:700;font-size:19px;letter-spacing:.06em;text-transform:uppercase;
  padding:18px 30px;background:var(--papel);color:var(--tinta);text-decoration:none;
  clip-path:var(--chaflan);position:relative;isolation:isolate;overflow:hidden;
}
.btn::before{content:"";position:absolute;inset:0;background:var(--acero);transform:translateY(101%);transition:transform .45s cubic-bezier(.76,0,.24,1);z-index:-1}
.btn:hover::before,.btn:focus-visible::before{transform:translateY(0)}
.btn:hover,.btn:focus-visible{color:#fff}
.btn svg{width:16px;height:16px;transition:transform .35s cubic-bezier(.76,0,.24,1)}
.btn:hover svg{transform:translate(3px,-3px)}
.btn--linea{background:transparent;color:var(--papel);box-shadow:inset 0 0 0 1.5px var(--niebla-2)}
.btn--linea::before{background:var(--papel)}
.btn--linea:hover,.btn--linea:focus-visible{color:var(--tinta)}

/* ── barra ──────────────────────────────────────────────────────────── */
.barra{position:sticky;top:0;z-index:40;background:rgba(11,18,25,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--niebla)}
.barra .env{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.barra__logo{display:block;height:24px;color:#fff;--logo-acento:var(--acero-claro)}
.barra__logo svg{height:100%;width:auto;display:block}
.barra__menu{display:flex;gap:28px}
.barra__menu a{text-decoration:none;font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;opacity:.7;transition:opacity .2s;padding:8px 0}
.barra__menu a:hover,.barra__menu a[aria-current]{opacity:1}
.barra__menu a[aria-current]{box-shadow:inset 0 -1.5px 0 var(--acero-claro)}
@media (max-width:640px){
  .barra__menu{gap:18px}
  .barra__menu a:nth-child(2),.barra__menu a:nth-child(3){display:none}
}

/* ── cabeceras de página ────────────────────────────────────────────── */
.miga{color:var(--acero-claro);display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.miga a{text-decoration:none;border-bottom:1px solid var(--niebla-2)}
.miga a:hover{color:var(--papel)}
.caso-hero,.indice-hero{z-index:1;
  padding:clamp(56px,8vw,110px) 0 0;position:relative;
  background:
    radial-gradient(70% 60% at 82% 0%,rgba(89,128,166,.38),transparent 62%),
    radial-gradient(50% 40% at 0% 100%,rgba(38,56,75,.8),transparent 65%),
    var(--placa);
}
.indice-hero{padding-bottom:clamp(48px,6vw,90px)}
.caso-hero h1,.indice-hero h1{font-size:clamp(64px,13vw,210px);line-height:.82;letter-spacing:-.035em;overflow-wrap:anywhere}
.caso-hero__pie,.indice-hero__pie{display:grid;grid-template-columns:minmax(0,1.2fr) auto;gap:32px;align-items:end;margin-top:36px;padding-top:26px;border-top:1px solid var(--niebla)}
.caso-hero__linea{font-family:var(--cond);font-weight:700;font-size:clamp(26px,3vw,40px);line-height:1;color:var(--papel);margin-bottom:14px;text-wrap:balance}
.caso-hero__lead{max-width:56ch;color:var(--acero-claro);font-size:18px}
.caso-hero__cta{display:flex;gap:12px;flex-wrap:wrap}
.indice-hero__cuenta{color:var(--acero-claro)}
.portada{margin-top:clamp(40px,5vw,72px);clip-path:var(--chaflan-g);background:var(--placa-2);transform:translateY(clamp(40px,6vw,90px));margin-bottom:0}
.portada img{width:100%}
.caso-hero + .ficha{padding-top:clamp(120px,14vw,220px)}
@media (max-width:820px){.caso-hero__pie,.indice-hero__pie{grid-template-columns:1fr}}

/* ── ficha (papel) ──────────────────────────────────────────────────── */
.ficha{padding:clamp(90px,10vw,150px) 0}
.ficha__grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(32px,6vw,96px);align-items:start}
.tabla{border-top:1.5px solid var(--tinta)}
.tabla div{display:grid;grid-template-columns:120px 1fr;gap:16px;padding:15px 0;border-bottom:1px solid var(--papel-linea);align-items:baseline}
.tabla dt{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--acero)}
.tabla dd{font-weight:500}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chips span{font-family:var(--mono);font-size:11px;letter-spacing:.04em;text-transform:uppercase;padding:5px 9px;border:1px solid var(--papel-linea);color:var(--tinta)}
.pulso{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--senal);margin-right:10px;vertical-align:1px;animation:pulso 2s infinite}
@keyframes pulso{0%{box-shadow:0 0 0 0 rgba(224,177,90,.6)}100%{box-shadow:0 0 0 12px rgba(224,177,90,0)}}
.relato{display:grid;gap:44px}
.relato h2{font-family:var(--mono);font-weight:500;font-size:12px;letter-spacing:.08em;line-height:1.5;color:var(--acero);margin-bottom:14px}
.relato p{font-family:var(--cond);font-weight:600;font-size:clamp(24px,2.5vw,34px);line-height:1.14;letter-spacing:-.005em;text-wrap:pretty}
@media (max-width:900px){.ficha__grid{grid-template-columns:1fr}}

/* ── secciones ──────────────────────────────────────────────────────── */
.seccion__cab{margin-bottom:clamp(40px,5vw,72px)}
.seccion__cab .mono{color:var(--acero-claro);margin-bottom:16px}
.papel .seccion__cab .mono{color:var(--acero)}
.seccion__cab h2{font-size:clamp(48px,7vw,112px)}

.hace{padding:clamp(90px,10vw,150px) 0;background:var(--placa)}
.hace__grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--niebla-2)}
.hace__grid li{padding:32px 28px 40px 0;margin-right:28px;border-bottom:1px solid var(--niebla)}
.hace__grid li .mono{color:var(--acero);display:block;margin-bottom:22px}
.hace__grid h3{font-size:clamp(26px,2.4vw,34px);line-height:1;margin-bottom:12px;color:var(--papel)}
.hace__grid p{color:var(--acero-claro);font-size:16px;max-width:36ch}
@media (max-width:900px){.hace__grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.hace__grid{grid-template-columns:1fr}.hace__grid li{margin-right:0;padding-right:0}}

/* ── pantallas (papel) ──────────────────────────────────────────────── */
.pantallas{padding:clamp(90px,10vw,150px) 0}
.tomas{display:grid;gap:clamp(16px,2.4vw,32px)}
.tomas--esc{grid-template-columns:1fr}
.tomas--esc + .tomas--mov{margin-top:clamp(16px,2.4vw,32px)}
.toma{overflow:hidden;background:#fff}
.toma--esc{clip-path:var(--chaflan-g);box-shadow:0 0 0 1px var(--papel-linea)}
.toma--esc img{width:100%}
.tomas--mov{grid-template-columns:repeat(4,1fr);align-items:start}
.tomas--mov[data-n="1"]{grid-template-columns:minmax(0,320px);justify-content:center}
.tomas--mov[data-n="6"]{grid-template-columns:repeat(3,1fr)}
.toma--tel{background:transparent;border-radius:36px;box-shadow:0 30px 60px -20px rgba(29,31,32,.35)}
.toma--cartel{border-radius:18px;box-shadow:0 30px 60px -24px rgba(29,31,32,.45)}
.toma--tel img,.toma--cartel img{width:100%}
.tomas__nota{margin-top:28px;color:var(--papel-suave)}
@media (max-width:820px){
  .tomas--mov,.tomas--mov[data-n="6"]{grid-template-columns:1fr 1fr}
}

/* ── decisiones ─────────────────────────────────────────────────────── */
.decisiones{padding:clamp(90px,10vw,150px) 0;background:var(--placa-2)}
.decisiones__lista{border-top:1px solid var(--niebla-2)}
.decisiones article{display:grid;grid-template-columns:120px 1fr 1fr;gap:24px;padding:40px 0;border-bottom:1px solid var(--niebla);align-items:start}
.decisiones .n{font-family:var(--cond);font-weight:800;font-size:56px;line-height:.9;color:var(--acero)}
.decisiones h3{font-size:clamp(28px,3.2vw,46px);color:var(--papel)}
.decisiones p{color:var(--acero-claro);max-width:44ch}
.decisiones__cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:56px}
@media (max-width:820px){.decisiones article{grid-template-columns:56px 1fr}.decisiones .n{font-size:38px}.decisiones article p{grid-column:2}}

/* ── siguiente ──────────────────────────────────────────────────────── */
.siguiente{display:block;text-decoration:none;background:var(--placa);padding:clamp(70px,9vw,130px) 0;border-top:1px solid var(--niebla);position:relative;overflow:hidden;isolation:isolate}
.siguiente::before{content:"";position:absolute;inset:0;background:var(--acero-prof);transform:translateY(101%);transition:transform .6s cubic-bezier(.76,0,.24,1);z-index:-1}
.siguiente:hover::before,.siguiente:focus-visible::before{transform:none}
.siguiente .mono{color:var(--acero-claro)}
.siguiente__nombre{font-family:var(--cond);font-weight:800;font-size:clamp(56px,11vw,180px);line-height:.86;letter-spacing:-.03em;margin:18px 0 20px;display:flex;align-items:baseline;gap:.18em;flex-wrap:wrap}
.siguiente__nombre svg{width:.5em;height:.5em;stroke-width:1.4;color:var(--acero-claro);transition:transform .5s var(--sale)}
.siguiente:hover .siguiente__nombre svg{transform:translate(.08em,-.08em)}
.siguiente__linea{color:var(--acero-claro);font-size:18px}

/* ── índice: lista de proyectos ─────────────────────────────────────── */
.lista{padding:0 0 clamp(80px,10vw,150px);background:var(--placa)}
.fila{display:grid;grid-template-columns:1.25fr 1fr;gap:clamp(24px,4vw,64px);align-items:center;text-decoration:none;padding:clamp(32px,4vw,56px) 0;border-top:1px solid var(--niebla)}
.fila:nth-child(even) .fila__img{order:2}
.fila__img{clip-path:var(--chaflan-g);background:var(--placa-2);overflow:hidden;aspect-ratio:16/10}
.fila__img img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--sale)}
.fila:hover .fila__img img,.fila:focus-visible .fila__img img{transform:scale(1.045)}
.fila__txt .mono{color:var(--acero-claro)}
.fila__txt .mono b{color:var(--papel);font-weight:500;margin-right:10px}
.fila h2{font-size:clamp(48px,6.4vw,104px);margin:18px 0 16px;letter-spacing:-.025em;transition:color .3s}
.fila:hover h2{color:var(--acero-claro)}
.fila__linea{font-family:var(--cond);font-weight:700;font-size:clamp(22px,2.2vw,30px);line-height:1.05;margin-bottom:12px}
.fila__res{color:var(--acero-claro);max-width:48ch}
.fila__pie{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:28px;padding-top:18px;border-top:1px solid var(--niebla)}
.fila__ir{display:inline-flex;align-items:center;gap:10px;color:var(--papel)}
.fila__ir svg{width:13px;height:13px;transition:transform .35s var(--sale)}
.fila:hover .fila__ir svg{transform:translate(3px,-3px)}
@media (max-width:820px){
  .fila{grid-template-columns:1fr}
  .fila:nth-child(even) .fila__img{order:0}
}

/* ── cierre (papel) ─────────────────────────────────────────────────── */
.cierre{padding:clamp(90px,12vw,180px) 0 56px}
.cierre__ceja{color:var(--acero);margin-bottom:20px}
.cierre h2{font-size:clamp(88px,19vw,300px);line-height:.8;letter-spacing:-.04em}
.cierre__fila{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:56px;padding-top:32px;border-top:1.5px solid var(--tinta);align-items:start}
.cierre__fila p{max-width:38ch;color:var(--papel-suave);font-size:18px}
.cierre__correo{justify-self:start;font-family:var(--cond);font-weight:800;font-size:clamp(30px,4.4vw,56px);line-height:1;text-decoration:none;border-bottom:3px solid var(--acero);padding-bottom:4px;overflow-wrap:anywhere}
.cierre__correo:hover{color:var(--acero)}
.pie{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px 24px;margin-top:80px;color:var(--papel-suave);align-items:center}
.pie__logo{display:block;height:18px;color:var(--tinta);--logo-acento:var(--acero)}
.pie__logo svg{height:100%;width:auto;display:block}
@media (max-width:820px){.cierre__fila{grid-template-columns:1fr}}

/* ── revelado al entrar ─────────────────────────────────────────────── */
.js .rv{opacity:0;transform:translateY(28px);transition:opacity .9s var(--sale),transform .9s var(--sale);transition-delay:var(--d,0s)}
.js .rv.in{opacity:1;transform:none}
.js .portada.rv{transform:translateY(calc(clamp(40px,6vw,90px) + 28px))}
.js .portada.rv.in{transform:translateY(clamp(40px,6vw,90px))}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .rv{opacity:1;transform:none;transition:none}
  .js .portada.rv{transform:translateY(clamp(40px,6vw,90px))}
  .pulso{animation:none}
  .fila__img img,.btn::before,.siguiente::before{transition:none}
}