/* =====================================================================
   TConsulting · propuesta 2
   Claro y editorial: blanco, tinta casi negra, un azul del iceberg como
   único acento. Todo vive dentro de un marco con líneas verticales finas
   y cruces en las esquinas de cada bloque.
   ===================================================================== */
:root{
  --papel:#ffffff;
  --papel-2:#f6f7f9;
  --tinta:#0b1220;
  --tinta-2:#2b3442;
  --gris:#5f6b7a;
  --gris-2:#8b95a3;
  --linea:#e6e8ec;
  --linea-2:#d5d9df;
  --acento:#1198d4;
  --acento-2:#0b62b8;
  --negro:#07090d;
  --ancho:1200px;
  --curva:cubic-bezier(.16,1,.3,1);
  --f:"Geist","Helvetica Neue",Arial,sans-serif;
  --mono:"Geist Mono",ui-monospace,Menlo,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--papel);color:var(--tinta-2);font-family:var(--f);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}
::selection{background:#cdeaf8}

/* ---------- el marco: columna central con líneas a los lados ---------- */
.marco{position:relative;max-width:var(--ancho);margin:0 auto;border-left:1px solid var(--linea);border-right:1px solid var(--linea)}
main > .marco{border-bottom:1px solid var(--linea)}
.cruz{position:absolute;width:11px;height:11px;z-index:3;pointer-events:none}
.cruz::before,.cruz::after{content:"";position:absolute;background:var(--gris-2)}
.cruz::before{left:5px;top:0;width:1px;height:11px}
.cruz::after{top:5px;left:0;height:1px;width:11px}
.cruz.tl{left:-6px;top:-6px}.cruz.tr{right:-6px;top:-6px}
.cruz.bl{left:-6px;bottom:-6px}.cruz.br{right:-6px;bottom:-6px}

/* ---------- navegación ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);-webkit-backdrop-filter:saturate(180%) blur(14px);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--linea)}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;padding:0 24px}
.logo img{height:30px;width:auto}
.nav nav{display:flex;gap:28px}
.nav nav a{font-size:14px;color:var(--tinta-2);transition:color .2s}
.nav nav a:hover{color:var(--acento)}
.nav-acc{display:flex;align-items:center;gap:10px}
.hamb{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer;position:relative}
.hamb span{position:absolute;left:10px;right:10px;height:1.5px;background:var(--tinta);transition:transform .3s var(--curva)}
.hamb span:first-child{top:15px}.hamb span:last-child{top:23px}
.hamb[aria-expanded="true"] span:first-child{transform:translateY(4px) rotate(45deg)}
.hamb[aria-expanded="true"] span:last-child{transform:translateY(-4px) rotate(-45deg)}

/* ---------- botones ---------- */
.b{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;border-radius:999px;font-size:14.5px;font-weight:500;white-space:nowrap;transition:transform .25s var(--curva),background .2s,color .2s,box-shadow .25s}
.b:hover{transform:translateY(-1px)}
.b-negro{background:var(--tinta);color:#fff}
.b-negro:hover{background:#000;box-shadow:0 8px 24px -10px rgba(11,18,32,.6)}
.b-gris{background:#eef0f3;color:var(--tinta)}
.b-gris:hover{background:#e3e6ea}
.botones{display:flex;gap:10px;flex-wrap:wrap}
.botones.centro{justify-content:center}
.flecha{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--tinta)}
.flecha::before{content:"→";transition:transform .25s var(--curva)}
.flecha:hover::before{transform:translateX(3px)}

/* ---------- tipografía ---------- */
h1,h2,h3{color:var(--tinta);font-weight:500;letter-spacing:-.035em;line-height:1.08;text-wrap:balance}
h1{font-size:clamp(2.3rem,5vw,4rem)}
h2{font-size:clamp(1.8rem,3.6vw,3rem)}
h3{font-size:1.08rem;font-weight:600;letter-spacing:-.015em;line-height:1.3}
.eti{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--tinta-2);margin-bottom:14px}
.eti::before{content:"";width:10px;height:6px;border-radius:1.5px;background:var(--tinta)}
.centro{text-align:center}

/* ---------- hero ---------- */
.hero{border-bottom:1px solid var(--linea)}
.hero-lienzo{position:relative;height:clamp(300px,46vw,560px);overflow:hidden;background:var(--papel);border-bottom:1px solid var(--linea)}
/* el iceberg del logo, dibujado en puntos con sus propios azules.
   La imagen solo sirve de muestra; si no hay canvas, se ve ella misma. */
.hero-lienzo{background:radial-gradient(50% 70% at 74% 50%,rgba(17,152,212,.07),transparent 70%),
  linear-gradient(rgba(11,18,32,.04) 1px,transparent 1px) 0 0/32px 32px,linear-gradient(90deg,rgba(11,18,32,.04) 1px,transparent 1px) 0 0/32px 32px,var(--papel)}
#semitono{position:absolute;inset:0;width:100%;height:100%;z-index:1}
.hero-respaldo{position:absolute;right:12%;top:8%;height:84%;width:auto;z-index:0;opacity:0}
.sin-canvas .hero-respaldo{opacity:1}
.etapas{position:absolute;inset:0;list-style:none;z-index:2;pointer-events:none}
.etapas li{position:absolute;left:var(--x);top:var(--y);display:inline-flex;align-items:center;gap:10px;padding:9px 14px 9px 9px;border-radius:999px;
  background:#fff;border:1px solid var(--linea-2);box-shadow:0 10px 30px -18px rgba(11,18,32,.45);font-size:13.5px;color:var(--tinta);white-space:nowrap;
  animation:flota 7s ease-in-out infinite}
.etapas li:nth-child(2){animation-delay:-1.4s}.etapas li:nth-child(3){animation-delay:-2.8s}
.etapas li:nth-child(4){animation-delay:-4.2s}.etapas li:nth-child(5){animation-delay:-5.6s}
.etapas li span{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--tinta);color:#fff;font-family:var(--mono);font-size:11px}
.etapas li:nth-child(4) span,.etapas li:nth-child(5) span{background:var(--acento)}
@keyframes flota{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
.hero-firma{position:absolute;right:24px;bottom:22px;z-index:2;font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--gris)}
.hero-firma b{color:var(--tinta);font-weight:600}
@media (max-width:720px){
  .etapas li{font-size:11.5px;padding:6px 10px 6px 6px;gap:7px}
  .etapas li span{width:20px;height:20px;font-size:9.5px}
  .etapas li:nth-child(4),.etapas li:nth-child(5){display:none}
  .etapas li:nth-child(1){left:5%;top:9%}
  .etapas li:nth-child(2){left:5%;top:31%}
  .etapas li:nth-child(3){left:5%;top:53%}
  .hero-firma{display:none}
}
.hero-chip{z-index:2}
.hero-chip{position:absolute;left:24px;bottom:22px;display:inline-flex;align-items:center;gap:10px;padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.9);border:1px solid var(--linea);font-size:13px;color:var(--tinta-2);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.hero-chip i{width:8px;height:8px;border-radius:50%;background:var(--acento);box-shadow:0 0 0 0 rgba(17,152,212,.6);animation:latido 2s infinite}
.hero-chip b{color:var(--tinta);font-weight:600}
@keyframes latido{70%{box-shadow:0 0 0 8px rgba(17,152,212,0)}100%{box-shadow:0 0 0 0 rgba(17,152,212,0)}}
.hero-txt{display:grid;grid-template-columns:1.25fr 1fr;gap:48px;align-items:end;padding:44px 40px 48px}
.hero-txt h1{max-width:17ch;font-size:clamp(2.2rem,4.4vw,3.6rem)}
.hero-lado p{font-size:16px;color:var(--gris);margin-bottom:22px;max-width:44ch}

/* ---------- logos ---------- */
.logos{padding:0}
.cinta{overflow:hidden;border-bottom:1px solid var(--linea);-webkit-mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.pista{display:flex;width:max-content;animation:cinta 48s linear infinite}
.cinta:hover .pista{animation-play-state:paused}
.pista img{height:86px;width:190px;object-fit:contain;padding:22px 34px;border-right:1px solid var(--linea);filter:grayscale(1);opacity:.65;mix-blend-mode:multiply;transition:opacity .2s,filter .2s}
.pista img:hover{opacity:1;filter:none}
@keyframes cinta{to{transform:translateX(-50%)}}
.logos-pie{text-align:center;font-size:13.5px;color:var(--gris);padding:16px}

/* ---------- bloques ---------- */
.bloque{padding:96px 40px}
.bloque.sin-pad{padding:96px 0 0}
.pad{padding:0 40px}
.cabeza{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px}
.cabeza h2{max-width:22ch}
.cabeza.centro{flex-direction:column;align-items:center}
.cabeza.centro h2{max-width:24ch}

.frase{font-size:clamp(1.6rem,3.2vw,2.6rem);text-align:center;max-width:30ch;margin:0 auto 72px}
/* palabras clave con resaltado de marcador, que se pinta al aparecer */
.frase u{text-decoration:none;color:var(--acento-2);padding:0 .08em;margin:0 -.04em;border-radius:.18em;
  background:linear-gradient(100deg,rgba(17,152,212,.14),rgba(17,152,212,.2)) 0 62%/0% 62% no-repeat;
  -webkit-box-decoration-break:clone;box-decoration-break:clone;transition:background-size 1.1s var(--curva)}
.frase.vis u{background-size:100% 62%}
.frase.vis u:nth-of-type(2){transition-delay:.25s}
.frase.vis u:nth-of-type(3){transition-delay:.5s}

.tres{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--linea);margin:0 -40px -96px}
.tres .col{padding:36px 40px 44px;border-right:1px solid var(--linea)}
.tres .col:last-child{border-right:0}
.ic{width:22px;height:22px;fill:none;stroke:var(--tinta);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;margin-bottom:18px}
.tres h3{margin-bottom:8px}
.tres p{font-size:14.5px;color:var(--gris)}

/* ---------- rubros: columnas que se abren ---------- */
.rubros{display:flex;gap:0;height:440px;margin:0 -40px -96px;border-top:1px solid var(--linea)}
.rubro{position:relative;flex:1;overflow:hidden;border-right:1px solid rgba(255,255,255,.15);transition:flex .8s var(--curva);background:var(--negro)}
.rubro:last-child{border-right:0}
.rubro img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:grayscale(1) brightness(.62);transform:scale(1.04);transition:filter .7s var(--curva),transform 1.2s var(--curva)}
.rubro::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 40%,rgba(0,0,0,.72))}
.rubro b{position:absolute;left:22px;right:22px;bottom:22px;z-index:2;color:#fff;font-size:17px;font-weight:500;letter-spacing:-.01em;line-height:1.2}
.rubro em{position:absolute;left:22px;right:22px;bottom:22px;z-index:2;color:rgba(255,255,255,.82);font-style:normal;font-size:13.5px;line-height:1.45;opacity:0;transform:translateY(10px);transition:opacity .5s,transform .6s var(--curva)}
.mas-ic{position:absolute;top:18px;left:18px;z-index:2;width:28px;height:28px;border-radius:50%;background:#fff;transition:transform .5s var(--curva)}
.mas-ic::before,.mas-ic::after{content:"";position:absolute;left:50%;top:50%;width:11px;height:1.5px;background:var(--tinta);transform:translate(-50%,-50%)}
.mas-ic::after{transform:translate(-50%,-50%) rotate(90deg)}
.rubros:hover .rubro{flex:.8}
.rubros .rubro:hover,.rubros .rubro:focus-visible{flex:2.4}
.rubro:hover img,.rubro:focus-visible img{filter:none;transform:scale(1)}
.rubro:hover .mas-ic{transform:rotate(45deg)}
.rubro:hover b{bottom:78px;transition:bottom .6s var(--curva)}
.rubro b{transition:bottom .6s var(--curva)}
.rubro:hover em{opacity:1;transform:none;transition-delay:.15s}

/* ---------- para quién: 2x2 ---------- */
.cuatro{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--linea)}
/* cada celda: texto a la izquierda, foto recortada en diagonal a la derecha */
.celda{position:relative;display:grid;grid-template-columns:1.25fr 1fr;min-height:320px;border-bottom:1px solid var(--linea);overflow:hidden;transition:background .4s}
.celda:nth-child(odd){border-right:1px solid var(--linea)}
.celda:nth-last-child(-n+2){border-bottom:0}
.celda:hover{background:var(--papel-2)}
.celda-txt{position:relative;z-index:1;padding:36px 28px 34px 40px;display:flex;flex-direction:column;align-items:flex-start}
.dib{width:52px;height:52px;padding:12px;border-radius:50%;background:#eef6fb;fill:none;stroke:var(--acento-2);stroke-width:2.4;stroke-linejoin:round;stroke-linecap:round;
  transition:transform .6s var(--curva),background .3s,stroke .3s}
.celda:hover .dib{transform:rotate(-8deg) scale(1.06);background:var(--tinta);stroke:#fff}
.celda h3{font-size:1.32rem;font-weight:500;margin:26px 0 8px;max-width:16ch}
.celda p{font-size:14.5px;color:var(--gris);max-width:36ch;margin-bottom:18px}
.celda .flecha{margin-top:auto}
.celda-foto{position:relative;overflow:hidden}
.celda-foto img{position:absolute;inset:-8% 0;width:100%;height:116%;object-fit:cover;filter:grayscale(1) contrast(1.05);
  clip-path:polygon(30% 0,100% 0,100% 100%,0 100%);transition:filter .8s var(--curva),clip-path 1s var(--curva),transform 1.2s var(--curva)}
.celda:hover .celda-foto img{filter:none;clip-path:polygon(0 0,100% 0,100% 100%,0 100%);transform:scale(1.04)}

/* ---------- bloque negro ---------- */
.negro{background:var(--negro);color:#c6ccd6;padding:96px 40px;border-color:#1b2029}
.negro h2,.negro h3{color:#fff}
.negro .eti{color:#c6ccd6}.negro .eti::before{background:#fff}
.negro .cruz::before,.negro .cruz::after{background:#3a4250}
.norma{display:grid;grid-template-columns:1fr 1.15fr 1fr;border:1px solid #1f2530;border-radius:14px;overflow:hidden}
.nc{position:relative;padding:34px 30px 36px;border-right:1px solid #1f2530;display:flex;flex-direction:column;gap:12px;transition:background .3s}
.nc:last-child{border-right:0}
.nc:hover{background:#0e1218}
.nc .eti{margin:0;color:#8f98a6}
.nc h3{font-size:1.5rem;font-weight:500}
.nc p{font-size:14.5px;color:#a8b0bc}
.nc .flecha{color:#fff;margin-top:auto;padding-top:10px}
.nc.grande{background:linear-gradient(180deg,#0d1a2b,#0a0f17)}
.cuenta{display:flex;align-items:baseline;gap:10px;margin:4px 0 2px}
.cuenta b{font-size:clamp(3.4rem,7vw,5.2rem);font-weight:500;letter-spacing:-.06em;line-height:1;color:#fff;font-variant-numeric:tabular-nums;background:linear-gradient(120deg,#8ae2f5,#3fc1ee 45%,#2a5fd8);-webkit-background-clip:text;background-clip:text;color:transparent}
.cuenta span{font-family:var(--mono);font-size:13px;color:#8f98a6;text-transform:uppercase;letter-spacing:.08em}
.nc ol{list-style:none;counter-reset:r;display:grid;gap:10px;margin-top:4px}
.nc ol li{counter-increment:r;display:flex;gap:12px;font-size:14.5px;color:#c6ccd6;padding-bottom:10px;border-bottom:1px solid #1f2530}
.nc ol li:last-child{border-bottom:0}
.nc ol li::before{content:"0" counter(r);font-family:var(--mono);font-size:12px;color:#6c7685;padding-top:2px}

/* ---------- casos ---------- */
.caso{display:grid;grid-template-columns:1.2fr 1fr;border-top:1px solid var(--linea)}
.caso.inv{grid-template-columns:1fr 1.2fr}
.caso-txt{padding:44px 40px 48px;display:flex;flex-direction:column;gap:22px}
.caso .cifras{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.caso .cifras div{border-left:1px solid var(--linea-2);padding-left:16px}
.caso .cifras b{display:block;font-size:clamp(1.8rem,3vw,2.4rem);font-weight:500;letter-spacing:-.04em;color:var(--tinta);line-height:1.1}
.caso .cifras span{font-size:13px;color:var(--gris);line-height:1.45;display:block;margin-top:4px}
.cita{font-size:clamp(1.05rem,1.6vw,1.3rem);line-height:1.5;color:var(--tinta);letter-spacing:-.01em;max-width:40ch}
.cita::before{content:"“";display:block;font-size:3rem;line-height:.6;color:var(--gris-2);margin-bottom:6px}
.caso-foto{position:relative;overflow:hidden;border-left:1px solid var(--linea);min-height:380px;background:var(--papel-2)}
.caso.inv .caso-foto{border-left:0;border-right:1px solid var(--linea)}
/* la foto recortada en diagonal, como en la referencia */
.caso-foto img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.05);
  clip-path:polygon(28% 0,100% 0,100% 72%,72% 100%,0 100%,0 28%);transition:filter .8s var(--curva),clip-path 1s var(--curva)}
.caso:hover .caso-foto img{filter:none;clip-path:polygon(0 0,100% 0,100% 100%,100% 100%,0 100%,0 0)}

/* ---------- preguntas frecuentes ---------- */
.faq{display:grid;grid-template-columns:1fr 1.4fr;gap:56px}
.faq-izq p{color:var(--gris);margin-top:16px}
.faq-izq a{color:var(--tinta);text-decoration:underline;text-underline-offset:3px}
.faq-izq{position:sticky;top:100px;align-self:start}
.faq-tarjeta{display:grid;grid-template-columns:120px 1fr;gap:18px;align-items:center;margin-top:36px;padding:14px;border:1px solid var(--linea);border-radius:18px;background:var(--papel-2)}
.faq-tarjeta img{width:120px;height:120px;object-fit:cover;border-radius:12px}
.faq-tarjeta b{display:block;color:var(--tinta);font-weight:600;margin-bottom:4px}
.faq-tarjeta span{display:block;font-size:13.5px;color:var(--gris);margin-bottom:12px}
.faq-izq .faq-tarjeta .b{height:36px;font-size:13.5px;padding:0 16px;color:#fff;text-decoration:none}
.faq-lista{counter-reset:q;display:grid;gap:10px}
details{counter-increment:q;border:1px solid var(--linea);border-radius:14px;padding:0 22px;transition:background .3s,border-color .3s,box-shadow .3s}
details:hover{border-color:var(--linea-2)}
details[open]{background:var(--papel-2);border-color:transparent;box-shadow:inset 3px 0 0 var(--acento)}
summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;padding:20px 0;font-size:16.5px;font-weight:500;color:var(--tinta)}
summary::-webkit-details-marker{display:none}
summary::before{content:"0" counter(q);font-family:var(--mono);font-size:12px;color:var(--gris-2);flex:0 0 auto}
summary::after{content:"+";margin-left:auto;display:grid;place-items:center;width:30px;height:30px;flex:0 0 auto;border-radius:50%;background:#fff;border:1px solid var(--linea);font-size:18px;font-weight:300;line-height:1;color:var(--tinta);transition:transform .35s var(--curva),background .3s,color .3s}
details[open] summary::after{transform:rotate(45deg);background:var(--tinta);color:#fff;border-color:var(--tinta)}
details p{color:var(--gris);font-size:15px;padding:0 46px 22px 34px;animation:abre .45s var(--curva)}
@keyframes abre{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ---------- cierre ---------- */
.cierre{text-align:center;padding:110px 40px 90px;background:
  radial-gradient(60% 80% at 50% 0%,rgba(17,152,212,.09),transparent 70%),var(--papel)}
.cierre h2{max-width:18ch;margin:0 auto 18px}
.cierre > p:not(.eti){color:var(--gris);max-width:52ch;margin:0 auto 30px}
.micro{font-size:13px;color:var(--gris-2);margin-top:28px}

/* ---------- pie ---------- */
.pie{padding:56px 40px 28px;font-size:14px}
.pie-rej{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:32px}
.pie img{height:28px;width:auto;margin-bottom:14px}
.pie p{color:var(--gris);max-width:30ch;font-size:13.5px}
.pie h4{font-family:var(--mono);font-size:11.5px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--tinta);margin-bottom:12px}
.pie a{display:block;color:var(--gris);margin-bottom:8px;transition:color .2s}
.pie a:hover{color:var(--tinta)}
.pie-abajo{display:flex;justify-content:space-between;margin-top:44px;padding-top:20px;border-top:1px solid var(--linea);color:var(--gris-2);font-size:12.5px}

/* ---------- revelado al hacer scroll ---------- */
.anim .sube{opacity:0;transform:translateY(24px);transition:opacity .9s var(--curva),transform .9s var(--curva)}
.anim .sube.vis{opacity:1;transform:none}
.anim .tres.sube .col,.anim .cuatro.sube .celda,.anim .norma.sube .nc{opacity:0;transform:translateY(18px);transition:opacity .8s var(--curva),transform .8s var(--curva)}
.anim .sube.vis .col,.anim .sube.vis .celda,.anim .sube.vis .nc{opacity:1;transform:none}
.anim .sube.vis > :nth-child(2){transition-delay:.1s}
.anim .sube.vis > :nth-child(3){transition-delay:.2s}
.anim .sube.vis > :nth-child(4){transition-delay:.3s}
.hero-txt > *{animation:entra 1s var(--curva) both}
.hero-txt > :nth-child(2){animation-delay:.12s}
@keyframes entra{from{transform:translateY(18px)}to{transform:none}}

/* ---------- responsivo ---------- */
@media (max-width:980px){
  .nav nav{position:fixed;inset:68px 0 auto 0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--linea);padding:8px 24px 20px;display:none}
  .nav nav.abre{display:flex}
  .nav nav a{padding:14px 0;border-bottom:1px solid var(--linea);font-size:16px}
  .hamb{display:block}
  .hero-txt{grid-template-columns:1fr;gap:24px;padding:32px 24px 36px}
  .bloque{padding:72px 24px}
  .bloque.sin-pad{padding:72px 0 0}
  .pad{padding:0 24px}
  .cabeza{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .tres{grid-template-columns:1fr;margin:0 -24px -72px}
  .tres .col{border-right:0;border-bottom:1px solid var(--linea);padding:30px 24px}
  .tres .col:last-child{border-bottom:0}
  .rubros{flex-direction:column;height:auto;margin:0 -24px -72px}
  .rubro{flex:none;height:150px;border-right:0;border-bottom:1px solid rgba(255,255,255,.15)}
  .rubros:hover .rubro,.rubros .rubro:hover{flex:none}
  .rubro img{filter:grayscale(.2) brightness(.6)}
  .cuatro{grid-template-columns:1fr}
  .celda{grid-template-columns:1fr;border-right:0!important;border-bottom:1px solid var(--linea)!important}
  .celda:last-child{border-bottom:0!important}
  .celda-txt{padding:30px 24px}
  .celda-foto{height:180px;order:-1}
  .celda-foto img{clip-path:none;filter:grayscale(.3)}
  .faq-izq{position:static}
  .negro{padding:72px 24px}
  .norma{grid-template-columns:1fr}
  .nc{border-right:0;border-bottom:1px solid #1f2530}
  .nc:last-child{border-bottom:0}
  .caso,.caso.inv{grid-template-columns:1fr}
  .caso.inv .caso-foto{order:2;border-right:0}
  .caso-txt{padding:32px 24px 36px}
  .caso-foto{border-left:0;border-top:1px solid var(--linea);min-height:260px}
  .faq{grid-template-columns:1fr;gap:24px}
  .cierre{padding:80px 24px 64px}
  .pie{padding:44px 24px 24px}
  .pie-rej{grid-template-columns:1fr 1fr}
  .marco{border-left:0;border-right:0}
  .cruz{display:none}
}
@media (max-width:520px){
  .nav-acc .b{display:none}
  .caso .cifras{grid-template-columns:1fr}
  .pie-rej{grid-template-columns:1fr}
  .pie-abajo{flex-direction:column;gap:6px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .anim .sube,.anim .sube *{opacity:1!important;transform:none!important}
  .frase u{background-size:100% 62%}
}

/* =====================================================================
   movimiento
   ===================================================================== */
.lectura{position:fixed;left:0;top:0;right:0;height:2px;z-index:60;background:linear-gradient(90deg,var(--tinta),var(--acento));transform-origin:left;transform:scaleX(0);pointer-events:none}

/* títulos palabra por palabra */
.palabras .pal{display:inline-block;overflow:hidden;vertical-align:top;padding-bottom:.08em;margin-bottom:-.08em}
.palabras .pal > span{display:inline-block;transform:translateY(105%);transition:transform .9s var(--curva);transition-delay:calc(var(--i) * 45ms)}
.palabras.vis .pal > span{transform:none}

/* parallax: las fotos tienen margen para moverse sin mostrar bordes */
.rubro img{inset:-6% 0;height:112%;transform:translateY(var(--py,0)) scale(1.04)}
.rubro:hover img,.rubro:focus-visible img,.rubros.auto .rubro.activo img{transform:translateY(var(--py,0)) scale(1)}
.caso-foto img{inset:-8% 0;height:116%;transform:translateY(var(--py,0))}
.celda-foto img{transform:translateY(var(--py,0))}
.celda:hover .celda-foto img{transform:translateY(var(--py,0)) scale(1.04)}

/* rubros que se abren solos */
.rubros.auto .rubro{flex:.85}
.rubros.auto .rubro.activo{flex:2.4}
.rubros.auto .rubro.activo img{filter:none}
.rubros.auto .rubro.activo .mas-ic{transform:rotate(45deg)}
.rubros.auto .rubro.activo b{bottom:78px}
.rubros.auto .rubro.activo em{opacity:1;transform:none;transition-delay:.15s}

/* inclinación y foco de luz */
.tres{perspective:900px}
.tres .col,.nc{transform:rotateX(var(--rx,0)) rotateY(var(--ry,0));transition:transform .5s var(--curva),background .3s}
.tres .col{position:relative;background:radial-gradient(360px circle at var(--mx,50%) var(--my,0%),rgba(17,152,212,.07),transparent 60%)}
.nc{background:radial-gradient(420px circle at var(--mx,50%) var(--my,0%),rgba(63,193,238,.12),transparent 55%)}
.nc.grande{background:radial-gradient(420px circle at var(--mx,50%) var(--my,0%),rgba(63,193,238,.16),transparent 55%),linear-gradient(180deg,#0d1a2b,#0a0f17)}
.tres .col .ic{transition:transform .6s var(--curva)}
.tres .col:hover .ic{transform:translateY(-3px) rotate(-6deg) scale(1.1);stroke:var(--acento)}

/* el resaltado de la frase respira apenas cuando ya está pintado */
@keyframes vibra{0%,100%{background-size:100% 62%}50%{background-size:100% 70%}}
.frase.vis u{animation:vibra 4s ease-in-out 1.4s infinite}

/* flechas que invitan */
.cabeza .flecha::before{animation:empuja 2.4s var(--curva) infinite}
@keyframes empuja{0%,60%,100%{transform:none}30%{transform:translateX(4px)}}

@media (prefers-reduced-motion:reduce){
  .palabras .pal > span{transform:none}
  .lectura{display:none}
}

/* =====================================================================
   hero en mosaico: los rubros alrededor del iceberg
   ===================================================================== */
.hero-lienzo.mosaico{display:grid;grid-template-columns:1.15fr 1fr 1.2fr 1fr;grid-template-rows:1fr 1fr;gap:8px;padding:8px;
  height:clamp(420px,44vw,580px);background:var(--papel)}
.tesela{position:relative;overflow:hidden;border-radius:14px;margin:0;background:var(--papel-2)}
.tesela img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.4s var(--curva)}
.tesela::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,9,13,0) 50%,rgba(7,9,13,.55));pointer-events:none}
.tesela:hover img:not(.iceberg){transform:scale(1.06)}
.tesela figcaption{position:absolute;left:14px;bottom:14px;z-index:1;display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;
  background:rgba(255,255,255,.92);color:var(--tinta);font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.tesela figcaption::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--acento)}
.t-mineria{grid-column:1;grid-row:1/3}
.t-puertos{grid-column:2;grid-row:1}
.t-transporte{grid-column:2;grid-row:2}
.t-marca{grid-column:3;grid-row:1/3}
.t-salmon{grid-column:4;grid-row:1}
.t-alimentos{grid-column:4;grid-row:2}

/* zoom lento y alternado en las fotos: el mosaico nunca está quieto */
@keyframes deriva{from{transform:scale(1.02) translate(0,0)}to{transform:scale(1.12) translate(-2%,-1.5%)}}
.t-mineria img{animation:deriva 18s ease-in-out infinite alternate}
.t-puertos img{animation:deriva 16s ease-in-out -4s infinite alternate-reverse}
.t-transporte img{animation:deriva 20s ease-in-out -8s infinite alternate}
.t-salmon img{animation:deriva 17s ease-in-out -2s infinite alternate-reverse}
.t-alimentos img{animation:deriva 19s ease-in-out -6s infinite alternate}
.tesela:hover img{animation-play-state:paused}

/* la tarjeta del iceberg */
.t-marca{display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:radial-gradient(70% 55% at 50% 42%,rgba(17,152,212,.12),transparent 70%),linear-gradient(180deg,#f7fafc,#eef3f7)}
.t-marca::after{display:none}
.t-marca-in{position:relative;display:flex;flex-direction:column;align-items:center;text-align:center;padding:24px}
.t-marca .iceberg{position:relative;inset:auto;width:auto;max-width:none;object-fit:contain;height:clamp(150px,17vw,230px);filter:drop-shadow(0 18px 26px rgba(11,62,120,.22));animation:flotar 6s ease-in-out infinite}
.sombra{width:110px;height:14px;margin-top:10px;border-radius:50%;background:radial-gradient(closest-side,rgba(11,18,32,.18),transparent);animation:sombra 6s ease-in-out infinite}
@keyframes flotar{0%,100%{transform:translateY(0) rotate(-.6deg)}50%{transform:translateY(-12px) rotate(.6deg)}}
@keyframes sombra{0%,100%{transform:scaleX(1);opacity:1}50%{transform:scaleX(.82);opacity:.6}}
.t-marca p{margin-top:18px;font-size:15px;line-height:1.45;color:var(--gris)}
.t-marca p b{color:var(--tinta);font-weight:600}
.t-marca .hero-chip{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);white-space:nowrap}

@media (max-width:980px){
  .hero-lienzo.mosaico{grid-template-columns:1fr 1fr;grid-template-rows:auto 170px 170px;height:auto}
  .t-marca{grid-column:1/3;grid-row:1;padding-bottom:56px}
  .t-mineria{grid-column:1;grid-row:2}
  .t-puertos{grid-column:2;grid-row:2}
  .t-salmon{grid-column:1;grid-row:3}
  .t-transporte{grid-column:2;grid-row:3}
  .t-alimentos{display:none}
  .t-marca .iceberg{height:140px}
}
@media (prefers-reduced-motion:reduce){
  .tesela img,.iceberg,.sombra{animation:none}
}

/* =====================================================================
   hero: el iceberg como metáfora de la consultoría
   ===================================================================== */
.hero-ice{display:grid;grid-template-columns:1fr 1.05fr;align-items:stretch;border-bottom:1px solid var(--linea)}
.hi-txt{padding:72px 48px 64px 40px;display:flex;flex-direction:column;justify-content:center;border-right:1px solid var(--linea)}
.hi-txt h1{font-size:clamp(2.3rem,4.2vw,3.6rem);max-width:15ch;margin-bottom:22px}
.hi-baja{font-size:16.5px;color:var(--gris);max-width:44ch;margin-bottom:28px}
.hi-chip{display:inline-flex;align-items:center;gap:10px;margin-top:34px;font-size:13.5px;color:var(--gris)}
.hi-chip i{width:8px;height:8px;border-radius:50%;background:var(--acento);animation:latido 2s infinite}
.hi-chip b{color:var(--tinta)}

.hi-dib{position:relative;margin:0;min-height:600px;overflow:hidden;background:var(--papel)}
/* el mar: desde la línea de agua hacia abajo, cada vez más hondo */
.hi-agua{position:absolute;left:0;right:0;top:40%;bottom:0;z-index:2;pointer-events:none;
  background:linear-gradient(180deg,rgba(17,152,212,.07),rgba(11,98,184,.10) 55%,rgba(11,62,120,.14))}
.hi-ola{position:absolute;left:0;top:-12px;width:200%;height:24px;fill:rgba(17,152,212,.10);animation:ola 9s linear infinite}
.hi-agua::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(11,98,184,.55) 15%,rgba(11,98,184,.55) 85%,transparent)}
@keyframes ola{to{transform:translateX(-50%)}}
/* el iceberg: la barra de la T queda justo en la línea de agua */
.hi-iceberg{position:absolute;z-index:1;left:50%;top:24%;height:57%;width:auto;transform:translateX(-50%);
  filter:drop-shadow(0 20px 30px rgba(11,62,120,.18));animation:boya 7s ease-in-out infinite}
@keyframes boya{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(-6px)}}
.hi-punta{position:absolute;z-index:3;top:14%;left:calc(50% + 70px);display:flex;flex-direction:column;gap:2px;padding-left:14px;border-left:1px solid var(--linea-2)}
.hi-punta b{font-size:17px;font-weight:600;color:var(--tinta)}
.hi-n,.hi-dib figcaption{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--gris)}
.hi-capas{list-style:none;position:absolute;inset:0;z-index:3}
.hi-capas li{position:absolute;top:var(--y);display:inline-flex;align-items:center;gap:10px;padding:8px 14px 8px 8px;border-radius:12px;
  background:rgba(255,255,255,.94);border:1px solid rgba(11,98,184,.18);box-shadow:0 10px 26px -18px rgba(11,62,120,.55);
  font-size:13.5px;color:var(--tinta);white-space:nowrap;animation:capa .9s var(--curva) both;animation-delay:var(--d)}
.hi-capas li span{display:grid;place-items:center;width:24px;height:24px;border-radius:7px;background:#e3f2fb;color:var(--acento-2);font-family:var(--mono);font-size:11px;font-weight:600}
.hi-capas li.iz{right:calc(50% + 104px)}
.hi-capas li.de{left:calc(50% + 104px)}
.hi-capas li.iz,.hi-capas li.de{white-space:normal;max-width:calc(50% - 120px);line-height:1.3}
/* línea fina que une cada capa con el iceberg */
.hi-capas li::after{content:"";position:absolute;top:50%;width:34px;height:1px;background:rgba(11,98,184,.35)}
.hi-capas li.iz::after{left:100%}
.hi-capas li.de::after{right:100%}
.hi-capas li:hover{border-color:var(--acento);transform:translateY(-2px)}
@keyframes capa{from{transform:translateY(10px)}to{transform:none}}
.hi-dib figcaption{position:absolute;z-index:3;left:24px;bottom:20px;color:var(--acento-2)}

/* franja multirubro */
.sectores{display:flex;align-items:center;gap:24px;padding:0 0 0 40px;border-bottom:1px solid var(--linea);overflow:hidden}
.sectores .eti{margin:0;flex:0 0 auto}
.sec-cinta{flex:1;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.sec-pista{display:flex;width:max-content;animation:cinta 40s linear infinite}
.sec-pista span{display:inline-flex;align-items:center;gap:22px;padding:26px 22px 26px 0;font-size:clamp(1.15rem,2vw,1.6rem);font-weight:400;letter-spacing:-.02em;color:var(--tinta)}
.sec-pista span::after{content:"";width:7px;height:7px;border-radius:2px;background:var(--acento);opacity:.7}
.sec-cinta:hover .sec-pista{animation-play-state:paused}

@media (max-width:980px){
  .hero-ice{grid-template-columns:1fr}
  .hi-txt{padding:44px 24px 36px;border-right:0;border-bottom:1px solid var(--linea)}
  .hi-dib{min-height:520px}
  .hi-iceberg{left:25%;height:46%;top:25%}
  @keyframes boya{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(-5px)}}
  .hi-agua{top:38%}
  .hi-punta{left:auto;right:16px;top:6%}
  .hi-capas li,.hi-capas li.iz,.hi-capas li.de{left:calc(25% + 86px);right:auto;font-size:11px;padding:5px 9px 5px 5px;white-space:nowrap;max-width:none}
  .hi-capas li:nth-child(1){top:44%}.hi-capas li:nth-child(2){top:53%}.hi-capas li:nth-child(3){top:62%}
  .hi-capas li:nth-child(4){top:71%}.hi-capas li:nth-child(5){top:80%}.hi-capas li:nth-child(6){top:89%}
  .hi-capas li span{width:20px;height:20px;font-size:10px}
  .hi-capas li.iz::after,.hi-capas li.de::after{left:auto;right:100%;width:14px}
  .hi-dib figcaption{display:none}
  .sectores{padding-left:24px}
}
@media (prefers-reduced-motion:reduce){ .hi-ola,.hi-iceberg,.sec-pista{animation:none} }

/* =====================================================================
   iceberg v2: fondo marino, punta con brillo y parte sumergida en puntos
   que se dibuja al pinchar o al bajar. Geometría compartida con el JS:
   línea de agua al 40% del alto; iceberg de 58% de alto con la barra de
   la T justo en la línea; centrado (27% del ancho en móvil).
   ===================================================================== */
#iceberg{background:#fff;cursor:pointer;-webkit-tap-highlight-color:transparent}
.hi-cielo{position:absolute;left:0;right:0;top:0;height:42%;z-index:0;
  background:radial-gradient(60% 90% at 70% 0%,rgba(127,220,242,.18),transparent 70%),linear-gradient(180deg,#ffffff,#eef7fc)}
#iceberg .hi-agua{top:42%;z-index:1;overflow:visible;
  background:linear-gradient(180deg,#dcf0fa 0%,#bfe1f4 30%,#93c8e8 70%,#6fb0dd 100%)}
#iceberg .hi-agua::before{z-index:2;background:linear-gradient(90deg,transparent,rgba(255,255,255,.95) 20%,rgba(255,255,255,.95) 80%,transparent);height:2px}
.hi-rayos{position:absolute;inset:0;overflow:hidden;
  background:repeating-linear-gradient(100deg,transparent 0 46px,rgba(255,255,255,.32) 70px,transparent 104px);
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 85%);mask-image:linear-gradient(180deg,#000,transparent 85%);
  background-size:320px 100%;animation:rayos 14s linear infinite;opacity:.75}
@keyframes rayos{to{background-position:320px 0}}
#iceberg .hi-ola{top:-12px;width:200%}
#iceberg .hi-ola.o1{fill:#dcf0fa;animation:ola 9s linear infinite}
#iceberg .hi-ola.o2{fill:rgba(255,255,255,.65);top:-9px;height:18px;animation:ola2 13s linear infinite}
@keyframes ola2{from{transform:translateX(-50%)}to{transform:translateX(0)}}

#iceberg .hi-iceberg{top:21.8%;height:72%;z-index:2}
.con-canvas #iceberg .hi-iceberg{visibility:hidden}
.hi-lienzo{position:absolute;inset:0;width:100%;height:100%;z-index:3;pointer-events:none}
#iceberg .hi-punta{z-index:4;top:12%;left:calc(50% + 96px)}

/* capas: aparecen cuando los puntos llegan a su altura */
#iceberg .hi-capas{z-index:4;pointer-events:none}
#iceberg .hi-capas li{animation:none;white-space:normal;max-width:30%;line-height:1.3;background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-color:rgba(255,255,255,.9);
  box-shadow:0 14px 34px -18px rgba(11,62,120,.6);
  opacity:0;transform:translateY(10px) scale(.96);transition:opacity .6s var(--curva),transform .7s var(--curva)}
#iceberg .hi-capas li::after{display:none}
#iceberg .hi-capas li.iz{left:4%;right:auto}
#iceberg .hi-capas li.de{right:4%;left:auto}
#iceberg .hi-capas li.on{opacity:1;transform:none}
.sin-anim #iceberg .hi-capas li{opacity:1;transform:none}

/* indicación para pinchar */
.hi-pista{position:absolute;z-index:5;left:4%;top:calc(42% - 58px);display:inline-flex;align-items:center;gap:10px;
  height:40px;padding:0 18px;border-radius:999px;border:0;cursor:pointer;background:var(--tinta);color:#fff;font:500 13.5px/1 var(--f);
  box-shadow:0 12px 30px -12px rgba(11,18,32,.6);transition:opacity .5s,transform .5s var(--curva)}
.hi-pista i{font-style:normal;display:inline-block;animation:baja 1.6s ease-in-out infinite}
@keyframes baja{0%,100%{transform:translateY(-2px)}50%{transform:translateY(3px)}}
.hi-pista:hover{transform:translateY(-2px)}
#iceberg.completo .hi-pista,.sin-anim .hi-pista{opacity:0;pointer-events:none}
#iceberg figcaption{z-index:4;color:#0b3e78}

@media (max-width:980px){
  #iceberg{min-height:560px}
  #iceberg .hi-iceberg{left:28%;top:29.1%;height:46%}
  #iceberg .hi-punta{left:auto;right:16px;top:10%}
  #iceberg .hi-capas li,#iceberg .hi-capas li.iz,#iceberg .hi-capas li.de{left:auto;right:12px;max-width:46%;white-space:normal;font-size:11.5px;padding:6px 10px 6px 6px}
  #iceberg .hi-capas li:nth-child(1){top:46%}#iceberg .hi-capas li:nth-child(2){top:54%}#iceberg .hi-capas li:nth-child(3){top:62%}
  #iceberg .hi-capas li:nth-child(4){top:70%}#iceberg .hi-capas li:nth-child(5){top:78%}#iceberg .hi-capas li:nth-child(6){top:86%}
  .hi-pista{bottom:auto;top:calc(42% - 50px);left:auto;right:12px;transform:none;font-size:12px;height:34px;padding:0 14px}
  .hi-pista:hover{transform:none}
}