/* A.C. Electrical Solutions — maqueta v4. Tokens, base, secciones. */
@font-face{font-family:"Chakra Petch";font-weight:500;font-display:swap;src:url(../fonts/chakra-petch-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"Chakra Petch";font-weight:600;font-display:swap;src:url(../fonts/chakra-petch-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"Chakra Petch";font-weight:700;font-display:swap;src:url(../fonts/chakra-petch-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"Albert Sans";font-weight:400;font-display:swap;src:url(../fonts/albert-sans-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Albert Sans";font-weight:500;font-display:swap;src:url(../fonts/albert-sans-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"Albert Sans";font-weight:600;font-display:swap;src:url(../fonts/albert-sans-latin-600-normal.woff2) format("woff2")}
:root{
  --navy:#011E45;--blue:#014A7F;--gold:#E3A72F;--gray:#AEA9B7;--white:#fff;--ink:#01041E;--mist:#F2F5F9;--line:#D6DBE3;--muted:#434D63;
  --f-display:"Chakra Petch","Bahnschrift","Segoe UI",system-ui,sans-serif;
  --f-body:"Albert Sans","Segoe UI",system-ui,sans-serif;
  --ease-out:cubic-bezier(.23,1,.32,1);--gutter:clamp(1.25rem,4vw,3rem);--head:76px;--section:clamp(4rem,9vw,7.5rem);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--head) + 12px);-webkit-text-size-adjust:100%}
body{margin:0;font:400 1.0625rem/1.65 var(--f-body);color:var(--ink);background:var(--white);overflow-x:hidden}
img,video{display:block;max-width:100%}
a{color:var(--blue)}
h1,h2,h3{font-family:var(--f-display);font-weight:600;margin:0;color:var(--navy)}
h2{font-size:clamp(1.9rem,3.5vw,3rem);line-height:1.08;text-transform:uppercase;letter-spacing:.01em;margin-bottom:1.5rem}
h3{font-size:1.4rem;line-height:1.2}
p{margin:0 0 1rem}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.site-header :focus-visible,.hero :focus-visible,.safety :focus-visible,.site-footer :focus-visible,.lb :focus-visible{outline-color:var(--gold)}
.wrap{max-width:1240px;margin:0 auto;padding-inline:var(--gutter)}
.skip{position:absolute;left:-999px;top:8px;background:var(--gold);color:var(--navy);padding:.6rem 1rem;z-index:100;font-weight:600}
.skip:focus{left:8px}
.lead{font-size:1.25rem;line-height:1.5;font-weight:500;color:var(--navy)}

/* Botones */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:.75rem 1.5rem;border:2px solid transparent;border-radius:2px;font:600 .98rem/1 var(--f-display);text-decoration:none;cursor:pointer;transition:background-color .2s var(--ease-out),color .2s var(--ease-out),border-color .2s var(--ease-out),transform .15s var(--ease-out)}
.btn:active,.pause:active{transform:scale(.98)}
.btn-gold{background:var(--gold);color:var(--navy)}
.btn-gold:hover{background:#F0B946}
.btn-line{border-color:#fff;color:#fff}
.btn-line:hover{background:#fff;color:var(--navy)}
.link-btn{background:none;border:0;padding:.4rem 0;font:600 1rem var(--f-body);color:var(--blue);text-decoration:underline;text-underline-offset:4px;cursor:pointer;min-height:44px}
.link-btn:hover{color:var(--navy)}

/* Encabezado */
.site-header{position:fixed;inset:0 0 auto 0;z-index:50;height:var(--head);display:flex;align-items:center;justify-content:space-between;padding-right:var(--gutter);color:#fff;background:linear-gradient(rgba(1,30,69,.55),rgba(1,30,69,0));transition:background-color .35s,box-shadow .35s}
.site-header.is-solid{background:var(--navy);box-shadow:0 1px 0 rgba(255,255,255,.12)}
.brand{display:flex;align-items:center;gap:.9rem;height:100%;padding-right:1.25rem;background:var(--navy);color:#fff;text-decoration:none}
.brand img{width:var(--head);height:var(--head)}
.brand-name{font:600 .82rem/1.2 var(--f-display);text-transform:uppercase;letter-spacing:.06em}
.nav{display:flex;align-items:center;gap:2rem}
.nav ul{display:flex;gap:1.75rem;list-style:none;margin:0;padding:0}
.nav ul a{color:#fff;text-decoration:none;font-weight:500;padding:.5rem 0;border-bottom:2px solid transparent;transition:border-color .2s}
.nav ul a:hover,.nav ul a[aria-current]{border-bottom-color:var(--gold)}
.menu-btn{display:none;min-height:44px;padding:.5rem 1.1rem;background:transparent;border:2px solid #fff;color:#fff;font:600 .95rem var(--f-display);border-radius:2px;cursor:pointer}

/* Portada */
.hero{position:relative;min-height:max(560px,100svh);display:flex;flex-direction:column;justify-content:flex-end;color:#fff;background:var(--navy);overflow:hidden}
.hero{touch-action:pan-y}
.slides,.hero-shade{position:absolute;inset:0}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .8s ease}
.slide.is-active{opacity:1}
.slide img{width:100%;height:100%;object-fit:cover}
.hero-shade{background:linear-gradient(90deg,rgba(1,30,69,.86) 0%,rgba(1,30,69,.6) 42%,rgba(1,30,69,.08) 78%),linear-gradient(0deg,rgba(1,4,30,.7) 0%,rgba(1,4,30,0) 38%)}
.hero-copy,.hero-controls{position:relative;max-width:1240px;width:100%;margin-inline:auto;padding-inline:var(--gutter)}
.hero-copy h1{color:#fff;font-size:clamp(2.2rem,4.8vw,4.3rem);line-height:1.03;text-transform:uppercase;max-width:15ch;margin-bottom:1.25rem;letter-spacing:.005em}
.hero-copy p{font-size:clamp(1.05rem,1.3vw,1.2rem);max-width:36rem;color:#EEF1F6;margin-bottom:1.75rem}
.actions{display:flex;flex-wrap:wrap;gap:.75rem}
.hero-controls{display:flex;align-items:center;gap:1.25rem;margin-top:clamp(2rem,6vh,4rem);margin-bottom:0}
.hero-controls::before{content:"";position:absolute;left:var(--gutter);right:var(--gutter);top:0;border-top:1px solid rgba(255,255,255,.28)}
.hero-controls>*{margin-top:1rem}
.hero-caption{margin:0;flex:1;font-size:.95rem;color:#fff;min-width:0}
.dots{display:flex}
.dot{width:40px;height:32px;padding:0;background:none;border:0;cursor:pointer;position:relative}
.dot::before{content:"";position:absolute;left:6px;right:6px;top:15px;height:3px;background:rgba(255,255,255,.5);transition:background-color .2s}
.dot[aria-current="true"]::before{background:var(--gold)}
.pause{min-height:44px;padding:.4rem .9rem;background:transparent;border:1px solid rgba(255,255,255,.7);border-radius:2px;color:#fff;font:500 .92rem var(--f-body);cursor:pointer}
.pause:hover{background:rgba(255,255,255,.14)}

/* Secciones */
section{padding-block:var(--section)}
.hero{padding-block:calc(var(--head) + 2rem) 1.75rem}
.about-grid{display:grid;grid-template-columns:5fr 6fr;gap:clamp(2rem,6vw,5.5rem);align-items:start}
.about-photo{margin:0}
.about-photo img{width:100%;aspect-ratio:4/5;object-fit:cover;object-position:50% 30%}
.about-text h3{margin:2.2rem 0 .5rem;font-size:1.2rem}
.steps{list-style:none;counter-reset:s;margin:0;padding:0}
.steps li{counter-increment:s;position:relative;padding:.85rem 0 .85rem 3rem;border-top:1px solid var(--line)}
.steps li:last-child{border-bottom:1px solid var(--line)}
.steps li::before{content:counter(s);position:absolute;left:0;top:.8rem;font:600 1.25rem var(--f-display);color:var(--blue)}
.steps strong{color:var(--navy);font-weight:600}

.solutions{background:var(--mist)}
.svc-main{display:grid;grid-template-columns:5fr 7fr;gap:clamp(2rem,5vw,4.5rem);align-items:start;margin-bottom:clamp(3rem,6vw,5rem)}
.svc-main img{width:100%;aspect-ratio:3/4;object-fit:cover}
.svc-main h3{font-size:clamp(1.6rem,2.4vw,2.1rem);margin-bottom:.75rem}
.svc-cols{list-style:none;margin:1.5rem 0 0;padding:0;columns:2;column-gap:2rem}
.svc-cols li{break-inside:avoid;padding:.6rem 0;border-top:1px solid #C3CAD6;font-size:1rem;line-height:1.4}
.svc-row{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,9fr);gap:clamp(1.25rem,3vw,2.5rem);padding:2rem 0;border-top:2px solid var(--navy)}
.svc-pic img{width:100%;aspect-ratio:4/3;object-fit:cover}
.svc-text{align-content:start;display:grid;grid-template-columns:minmax(0,4fr) minmax(0,5fr);column-gap:clamp(1.25rem,3vw,2.5rem)}
.svc-text h3{grid-column:1}
.svc-text>p:nth-of-type(1){grid-column:1;margin-top:.5rem;color:var(--muted)}
.svc-list{grid-column:2;grid-row:1/span 2;margin:0;font-size:1rem;line-height:1.7}

.sec-head{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:end;margin-bottom:2.5rem}
.sec-head h2{margin:0}
.sec-head p{margin:0;color:var(--muted);max-width:30rem}
.proj-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:3rem 1.5rem}
.p-wide{grid-column:span 8}.p-tall{grid-column:span 4}.p-half{grid-column:span 6}
.proj-media{display:block;width:100%;padding:0;border:0;background:var(--navy);cursor:zoom-in;overflow:hidden}
.proj-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease-out)}
.p-wide .proj-media{aspect-ratio:1.65}.p-tall .proj-media{aspect-ratio:4/5}.p-half .proj-media{aspect-ratio:3/2}
@media (hover:hover){.proj-media:hover img{transform:scale(1.025)}}
.proj-body{padding-top:1rem}
.proj-cat{margin:0 0 .25rem;font-size:.92rem;font-weight:600;color:var(--blue)}
.proj-body h3{margin-bottom:.4rem}
.proj-body p:not(.proj-cat){color:var(--muted);margin-bottom:.25rem;max-width:36rem}

.safety{background:var(--navy);color:#E8ECF3}
.safety h2,.safety .lead{color:#fff}
.safety-grid{display:grid;grid-template-columns:7fr 5fr;gap:clamp(2rem,6vw,5rem);align-items:center}
.safety figure{margin:0}
.safety img{width:100%;aspect-ratio:4/5;object-fit:cover;object-position:50% 20%;max-height:560px}

.partner{background:var(--mist);padding-block:clamp(2.5rem,5vw,4rem)}
.partner-in{display:grid;grid-template-columns:5fr 7fr;gap:2rem;align-items:start}
.partner h2{font-size:1.35rem;margin:0}
.partner p{margin:0;max-width:40rem;color:var(--muted)}
.partner strong{color:var(--navy)}

.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:clamp(2rem,6vw,5rem);align-items:start}
.contact dl{margin:2rem 0 0;display:grid;grid-template-columns:7rem 1fr;row-gap:.9rem}
.contact dt{font-weight:600;color:var(--navy)}
.contact dd{margin:0;overflow-wrap:anywhere}
.form{display:grid;gap:1.1rem;padding:clamp(1.25rem,3vw,2.25rem);background:var(--mist);border-top:4px solid var(--gold)}
.field label{display:block;font-weight:600;margin-bottom:.35rem;color:var(--navy);font-size:.98rem}
.field label span{font-weight:400;color:var(--muted)}
.field input,.field select,.field textarea{width:100%;min-height:48px;padding:.65rem .8rem;font:inherit;color:var(--ink);background:#fff;border:1px solid #6B7587;border-radius:2px}
.field textarea{resize:vertical}
.field [aria-invalid="true"]{border-color:#B00020;border-width:2px}
.form .btn{justify-self:start}
.form-note{margin:0;min-height:1.5em;font-size:.98rem}
.form-note a{font-weight:600}

.site-footer{background:var(--ink);color:#C5C8D3;padding:clamp(2.5rem,5vw,4rem) 0 1.5rem}
.site-footer a{color:#fff;text-decoration:none}
.site-footer a:hover{text-decoration:underline;text-underline-offset:4px}
.foot-grid{display:grid;grid-template-columns:5fr 3fr 4fr;gap:2.5rem;align-items:start}
.foot-brand{display:flex;gap:1.25rem;align-items:flex-start}
.foot-brand p{max-width:22rem;margin:0}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:.5rem}
.foot-contact{display:grid;gap:.5rem}
.copy{margin:2.5rem 0 0;padding-top:1.25rem;border-top:1px solid rgba(255,255,255,.15);font-size:.9rem}

/* Galería */
.lb{width:min(96vw,1120px);height:min(92svh,820px);max-width:none;max-height:none;padding:0;border:0;background:var(--ink);color:#fff;margin:auto}
.lb[open]{display:grid;grid-template-rows:auto minmax(0,1fr) auto auto;animation:lbin .2s ease}
.lb::backdrop{background:rgba(1,4,30,.9)}
@keyframes lbin{from{opacity:0}to{opacity:1}}
.lb-bar{display:flex;align-items:center;gap:1rem;padding:.6rem 1rem}
.lb-title{margin:0;flex:1;font:600 1.05rem var(--f-display)}
.lb-count{margin:0;color:var(--gray);font-size:.95rem}
.lb button{min-height:44px;padding:.4rem 1rem;background:transparent;border:1px solid rgba(255,255,255,.5);color:#fff;font:500 .98rem var(--f-body);border-radius:2px;cursor:pointer}
.lb button:hover{background:rgba(255,255,255,.12)}
.lb-stage{display:flex;align-items:center;justify-content:center;min-height:0;padding:0 1rem;touch-action:pan-y}
.lb-stage img,.lb-stage video{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}
.lb-alt{margin:.6rem 1rem 0;font-size:.95rem;color:#D9DCE5;text-align:center}
.lb-nav{display:flex;justify-content:center;gap:.75rem;padding:.75rem 1rem 1rem}

/* Adaptación */
@media (max-width:1024px){
  .nav ul{gap:1.1rem}.nav{gap:1.1rem}
  .p-wide,.p-tall,.p-half{grid-column:span 6}
  .p-wide .proj-media,.p-tall .proj-media,.p-half .proj-media{aspect-ratio:4/3}
  .svc-text{grid-template-columns:1fr}.svc-list{grid-column:1;grid-row:auto;margin-top:.5rem}
}
.menu-backdrop{display:none}
@media (max-width:900px){
  html.menu-open{overflow:hidden}
  .menu-backdrop:not([hidden]){display:block;position:fixed;inset:0;z-index:49;border:0;padding:0;background:rgba(0,0,0,.5);cursor:pointer}
  .nav{max-height:calc(100svh - var(--head));overflow-y:auto;overscroll-behavior:contain}
  .js .menu-btn{display:inline-flex;align-items:center}
  .nav{position:absolute;top:var(--head);left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--navy);padding:.5rem var(--gutter) 1.25rem;border-top:1px solid rgba(255,255,255,.12)}
  .nav ul{flex-direction:column;gap:0}
  .nav ul a{display:block;padding:.95rem 0;font-size:1.1rem;border-bottom:1px solid rgba(255,255,255,.12)}
  .nav .btn{margin-top:1rem}
  .js .nav{visibility:hidden;opacity:0;transform:translateY(-8px);transition:opacity .25s var(--ease-out),transform .25s var(--ease-out),visibility 0s .25s}
  .js .nav.is-open{visibility:visible;opacity:1;transform:none;transition:opacity .25s var(--ease-out),transform .25s var(--ease-out)}
  .no-js-fallback{display:none}
  .about-grid,.svc-main,.safety-grid,.partner-in,.contact-grid,.sec-head{grid-template-columns:1fr}
  .about-photo img{aspect-ratio:4/3}
  .svc-main img{aspect-ratio:4/3}
  .safety img{aspect-ratio:4/3;max-height:none}
  .foot-grid{grid-template-columns:1fr 1fr}.foot-brand{grid-column:1/-1}
}
@media (max-width:700px){
  :root{--head:64px}
  .brand-name{font-size:.72rem}
  .hero{padding-bottom:1.25rem}
  .hero-shade{background:linear-gradient(0deg,rgba(1,30,69,.94) 0%,rgba(1,30,69,.8) 55%,rgba(1,30,69,.3) 100%)}
  .hero-copy h1{font-size:clamp(2rem,9vw,2.6rem)}
  .hero-controls{flex-wrap:wrap;gap:.5rem 1rem;margin-top:1.75rem}
  .hero-caption{flex-basis:100%;order:3;font-size:.9rem}
  .dots{flex:1}
  .proj-grid{grid-template-columns:1fr;gap:2.5rem}
  .p-wide,.p-tall,.p-half{grid-column:auto}
  .p-wide .proj-media,.p-tall .proj-media,.p-half .proj-media{aspect-ratio:4/3}
  .svc-cols{columns:1}
  .svc-row{grid-template-columns:1fr}
  .svc-row.no-pic .svc-pic{display:none}
  .svc-pic img{aspect-ratio:16/10}
  .contact dl{grid-template-columns:1fr;row-gap:.15rem}.contact dt{margin-top:.8rem}
  .foot-grid{grid-template-columns:1fr}
  .lb{width:100vw;height:100svh}
  .form .btn{justify-self:stretch}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;scroll-behavior:auto!important}
}

/* Revisión local v4.1: fotografía automática y Cinematic Fade. */
.hero-scroll{position:relative}
.hero{padding-bottom:clamp(3rem,10svh,7rem)}
@media(prefers-reduced-motion:no-preference){
  .js .hero-scroll{height:180svh;min-height:1000px}
  .js .hero-scroll .hero{position:sticky;top:0;height:100svh;min-height:560px}
  .js .hero-copy h1{will-change:transform,opacity}
  .js .hero-copy>p,.js .hero-copy>.actions{will-change:opacity}
}
.hero-copy h1{position:relative;z-index:1}
.hero-copy>.actions{position:relative;z-index:2}

/* Secuencia de acompañamiento: una línea une los cuatro hitos. */
.project-process{margin-top:clamp(3.5rem,7vw,6rem)}
.project-process>h3{font-size:clamp(1.5rem,2.6vw,2rem);margin:0 0 2.8rem}
.process-timeline{position:relative;--icon-size:78px;--node-size:14px}
.process-track{position:absolute;left:12.5%;right:12.5%;top:calc(var(--icon-size) + 28.5px);height:3px;background:var(--line)}
.process-fill{display:block;width:100%;height:100%;background:var(--gold);transform:scaleX(var(--progress,0));transform-origin:left}
.process-steps{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));list-style:none;margin:0;padding:0}
.process-step{text-align:center;padding:0 18px;min-width:0}
.step-icon{width:var(--icon-size);height:var(--icon-size);margin:auto;display:grid;place-items:center;color:var(--blue);background:var(--mist);border:1px solid var(--line);border-radius:50%;transition:color .35s,background-color .35s,border-color .35s,transform .35s}
.step-icon svg{width:44px;height:44px}
.step-node{position:relative;display:block;width:var(--node-size);height:var(--node-size);margin:20px auto 18px;border-radius:50%;background:var(--line);border:3px solid white;box-sizing:content-box;transition:background-color .25s}
.step-number{font:600 .8rem var(--f-display);color:var(--blue);display:block;margin-bottom:8px}
.process-step h4{font:600 1.1rem/1.3 var(--f-display);color:var(--navy);margin:0 auto 12px;max-width:210px}
.process-step p{font-size:.95rem;line-height:1.5;color:var(--muted);max-width:245px;margin:auto}
.process-step.is-reached .step-node{background:var(--gold)}
.process-step.is-reached .step-icon{color:var(--navy);border-color:var(--gold);background:#fff8e9}
.process-step.is-current .step-icon{transform:translateY(-5px);background:var(--gold)}
@media(max-width:700px){
  .hero{padding-bottom:3.5rem}
  .process-timeline{--icon-size:60px}
  .project-process>h3{margin-bottom:2rem}
  .process-steps{display:flex;flex-direction:column;gap:0}
  .process-step{position:relative;min-height:156px;text-align:left;padding:0 0 28px 88px}
  .process-step:last-child{min-height:0;padding-bottom:0}
  .step-icon{position:absolute;left:0;top:0;width:60px;height:60px}
  .step-icon svg{width:34px;height:34px}
  .step-node{display:none}
  .step-number{margin-bottom:5px}
  .process-step h4,.process-step p{max-width:none;margin-left:0}
  .process-step h4{font-size:1.12rem;margin-bottom:8px}
  .process-track{left:29px;top:30px;bottom:calc(100% - 498px);right:auto;width:3px;height:468px}
  .process-fill{transform:scaleY(var(--progress,0));transform-origin:top}
  .process-step.is-current .step-icon{transform:scale(1.06)}
}
@media(prefers-reduced-motion:reduce){
  .hero-copy h1,.hero-copy>p,.hero-copy>.actions{transform:none!important;opacity:1!important;visibility:visible!important}
  .process-fill{--progress:1!important}
  .step-icon{transform:none!important}
}

/* v4.2: proceso compacto dentro de la columna de presentación. */
.slides{transform-origin:center;will-change:transform}
.hero-shade{will-change:opacity}
.about-text{min-width:0}
.about-text .project-process{margin:2rem 0 0;padding:0;max-width:none;text-align:center}
.about-text .project-process>h3{margin:0 0 1.5rem;font-size:1.25rem;line-height:1.35}
.about-text .process-timeline{--icon-size:48px;--node-size:8px}
.about-text .process-step{padding:0 6px}
.about-text .step-icon svg{width:28px;height:28px}
.about-text .step-node{margin:14px auto 10px;border-width:3px}
.about-text .process-track{top:67.5px;height:3px}
.about-text .step-number{font-size:.68rem;margin-bottom:6px}
.about-text .process-step h4{font-size:.83rem;line-height:1.35;margin-bottom:8px}
.about-text .process-step p{font-size:.78rem;line-height:1.5}
.about-text .process-step.is-current .step-icon{transform:translateY(-3px)}
@media(max-width:700px){
  .about-text .project-process{margin-top:2rem}
  .about-text .process-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0}
  .about-text .process-step{min-height:0;text-align:center;padding:0 4px}
  .about-text .step-icon{position:static;width:48px;height:48px}
  .about-text .step-node{display:block}
  .about-text .process-track{left:12.5%;right:12.5%;bottom:auto;width:auto;height:3px}
  .about-text .process-fill{transform:scaleX(var(--progress,0));transform-origin:left}
  .about-text .process-step h4{font-size:.78rem}
  .about-text .process-step p{font-size:.75rem}
}
@media(prefers-reduced-motion:reduce){
  .slides{transform:none!important;will-change:auto}
  .hero-shade{opacity:1!important;will-change:auto}
}

/* v4.3 — Soluciones uniformes, expansión por hover, teclado o toque. */
.solution-list{border-top:1px solid var(--navy)}
.solution-card{position:relative;display:grid;grid-template-columns:220px minmax(0,1fr);gap:32px;min-height:196px;padding:24px 0;border-bottom:1px solid var(--line);transition:grid-template-columns .35s ease,padding .35s ease}
.solution-photo{position:relative;margin:0;min-height:148px;overflow:hidden;transition:min-height .35s ease}
.solution-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.solution-content{align-self:center;min-width:0}
.solution-content h3{margin:0 0 10px}
.solution-trigger{display:block;width:100%;padding:0 32px 0 0;border:0;background:none;text-align:left;color:var(--navy);font:600 1.4rem/1.25 var(--f-display);cursor:pointer}
.solution-trigger:after{content:'';position:absolute;inset:0;z-index:1}
.solution-trigger:focus-visible{outline:none}
.solution-card:has(.solution-trigger:focus-visible){outline:3px solid var(--blue);outline-offset:4px}
.solution-sign{position:absolute;right:0;top:30px;font-size:24px;font-weight:400}
.solution-summary{font-size:1rem;line-height:1.5;max-width:650px;margin:0;color:var(--muted)}
.solution-detail{display:grid;grid-template-rows:1fr;transition:grid-template-rows .35s ease,opacity .3s ease;opacity:1}
.solution-detail>div{overflow:hidden;min-height:0}
.solution-detail ul{margin:18px 0 0;padding:0 0 0 18px;font-size:.95rem;line-height:1.55;columns:2;column-gap:30px}
.solution-detail li{break-inside:avoid;padding:0 0 7px}
.js .solution-detail{grid-template-rows:0fr;opacity:0;visibility:hidden;transition:grid-template-rows .35s ease,opacity .3s ease,visibility 0s .35s}
.js .solution-card.is-expanded{grid-template-columns:36% minmax(0,1fr);padding-block:30px}
.js .solution-card.is-expanded .solution-photo{min-height:280px}
.js .solution-card.is-expanded .solution-photo img{transform:scale(1.025)}
.js .solution-card.is-expanded .solution-detail{grid-template-rows:1fr;opacity:1;visibility:visible;transition:grid-template-rows .35s ease,opacity .3s ease,visibility 0s}
.site-footer{padding:25px 0 16px}
.foot-grid{grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);align-items:center;gap:40px}
.foot-brand{grid-column:auto;align-items:center;gap:16px}
.foot-brand img{width:64px;height:64px}
.foot-brand p{font-size:.92rem;line-height:1.5;max-width:400px}
.foot-contact{font-size:.9rem;gap:3px;justify-self:end;overflow-wrap:anywhere}
.copy{margin-top:18px;padding-top:12px;font-size:.78rem}
@media(max-width:900px){
 .solution-card{grid-template-columns:180px minmax(0,1fr);gap:24px;min-height:210px}
 .solution-detail ul{columns:1}
 .foot-grid{grid-template-columns:1fr 1fr;gap:24px}
}
@media(max-width:600px){
 .solution-card{grid-template-columns:100px minmax(0,1fr);gap:16px;min-height:230px;padding-block:20px}
 .solution-photo{min-height:170px}
 .solution-trigger{font-size:1.05rem;padding-right:16px}
 .solution-sign{font-size:20px;top:20px}
 .solution-summary{font-size:.85rem;line-height:1.5}
 .js .solution-card.is-expanded{grid-template-columns:1fr;padding-block:22px}
 .js .solution-card.is-expanded .solution-photo{min-height:220px}
 .solution-detail ul{font-size:.9rem}
 .foot-grid{grid-template-columns:1fr;gap:16px}
 .foot-contact{justify-self:start;font-size:.85rem}
 .foot-brand p{font-size:.85rem}
}

/* v4.4 — Respaldo consolidado, carrusel y catálogo. */
.why-us{background:var(--mist)}
.why-us h2{text-align:center;font-size:clamp(1.7rem,3vw,2.5rem);max-width:850px;margin:0 auto 44px}
.reasons-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.reason{padding:30px 20px;text-align:center;background:white;border:1px solid var(--line)}
.reason-icon{display:grid;place-items:center;background:var(--navy);color:var(--gold);width:58px;height:58px;margin:0 auto 24px;border-radius:3px}
.reason-icon svg{width:30px;height:30px}
.reason h3{font-size:1.15rem;line-height:1.3;margin-bottom:16px}
.reason p{font-size:.95rem;color:var(--muted);margin:0;line-height:1.6}
.project-carousel{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:thin;scrollbar-color:var(--gray) transparent;padding-bottom:18px;overscroll-behavior-x:contain}
.featured-card{flex:0 0 calc((100% - 24px)/2);min-width:0;scroll-snap-align:start;scroll-snap-stop:always}
.featured-card .proj-media{aspect-ratio:16/10}
.featured-card .proj-body h3{font-size:1.55rem}
.project-carousel-footer{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-top:25px}
.project-carousel-controls{display:flex;align-items:center;gap:18px}
.project-carousel-controls button,.filter-reset{min-height:44px;border:1px solid var(--blue);color:var(--blue);background:transparent;padding:10px 16px;font:500 .95rem var(--f-body);cursor:pointer}
.project-carousel-controls button:hover:not(:disabled),.filter-reset:hover{background:var(--navy);color:white}
.project-carousel-controls button:disabled{opacity:.4;cursor:default}
.carousel-position{font-size:.9rem;white-space:nowrap;min-width:65px;text-align:center}
.project-catalog{padding:calc(var(--head) + 60px) 0 80px}
.project-catalog h1{font-size:clamp(2.2rem,5vw,4rem);line-height:1.1;text-transform:uppercase;margin:24px 0}
.back-home{font-size:.95rem;text-underline-offset:4px}
.catalog-intro{max-width:680px;color:var(--muted);font-size:1.15rem}
.project-filters{display:flex;align-items:end;gap:20px;margin:36px 0 20px}
.project-filters label{display:grid;gap:8px;flex:1;font-weight:600;font-size:.9rem;color:var(--navy)}
.project-filters input,.project-filters select{width:100%;height:48px;padding:10px 12px;border:1px solid #8994a3;background:white;font:400 1rem var(--f-body);color:var(--ink);border-radius:0}
.filter-reset{height:48px}
#project-count{font-size:.95rem;color:var(--muted);margin-bottom:30px}
.catalog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:44px 24px}
.catalog-card{min-width:0}
.catalog-card .proj-media{aspect-ratio:4/3}
.catalog-card h3{font-size:1.35rem}
.catalog-card p{font-size:.95rem}
.catalog-card[hidden],#project-empty[hidden]{display:none}
#project-empty{padding:45px 24px;background:var(--mist);text-align:center;color:var(--navy)}
@media(max-width:1000px){.reasons-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){
 .featured-card{flex-basis:100%}
 .project-carousel-footer{flex-direction:column;align-items:stretch}
 .project-carousel-controls{justify-content:space-between;gap:12px}
 .featured-card .proj-body h3{font-size:1.35rem}
 .project-filters{flex-direction:column;align-items:stretch;gap:16px}
 .catalog-grid{grid-template-columns:1fr}
 .project-catalog{padding-top:calc(var(--head) + 35px)}
 .reason{padding:25px 18px}
}
@media(max-width:450px){.reasons-grid{grid-template-columns:1fr}.reason-icon{margin-bottom:18px}.why-us h2{margin-bottom:30px}}

/* v4.5 — Tres caras protagonistas y dos proyectos en los extremos. */
.project-carousel.is-3d{display:block;position:relative;height:510px;perspective:1600px;overflow:hidden;scroll-snap-type:none;padding:20px 0 0;touch-action:pan-y;isolation:isolate}
.is-3d .featured-card{position:absolute;top:20px;left:50%;width:var(--card-width);height:460px;background:white;border:1px solid var(--line);box-shadow:0 12px 24px rgba(1,30,69,.08);transform:translateX(calc(-50% + var(--x))) translateZ(var(--z)) rotateY(var(--angle));transform-style:preserve-3d;backface-visibility:hidden;transition:transform .7s cubic-bezier(.22,.7,.25,1),box-shadow .4s,border-color .4s;cursor:pointer;overflow:hidden}
.is-3d .featured-card.is-current{border-color:var(--gold);box-shadow:0 16px 30px rgba(1,30,69,.13);cursor:default}
.is-3d .featured-card .proj-media{aspect-ratio:4/3}
.is-3d .featured-card .proj-body{padding:18px}
.is-3d .featured-card .proj-body h3{font-size:1.2rem;line-height:1.25}
.is-3d .featured-card .proj-body p{font-size:.9rem;line-height:1.5}
.is-3d .featured-card .proj-cat{font-size:.8rem}
.is-3d .featured-card:not(.is-current) .proj-media img{transform:none}
.is-3d .featured-card .link-btn{font-size:.85rem}
.is-3d .featured-card:focus-visible{outline:3px solid var(--blue);outline-offset:-4px}
.reason{transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;transform:perspective(900px) rotateX(0) rotateY(0)}
.reason-icon{transition:background-color .3s ease,transform .3s ease,color .3s ease}
.reason:hover,.reason:focus-visible{transform:perspective(900px) translateY(-7px) rotateX(var(--tilt-x,0deg)) rotateY(var(--tilt-y,0deg));border-color:var(--gold);box-shadow:0 12px 26px rgba(1,30,69,.09)}
.reason:hover .reason-icon,.reason:focus-visible .reason-icon{background:var(--blue);color:var(--gold);transform:translateY(-2px) scale(1.05)}
@media(max-width:700px){
 .project-carousel.is-3d{height:475px;perspective:1100px}
 .is-3d .featured-card{height:430px}
 .is-3d .featured-card .proj-body{padding:14px}
 .is-3d .featured-card .proj-body h3{font-size:1.1rem}
 .is-3d .featured-card .proj-body p{font-size:.85rem}
}
@media(prefers-reduced-motion:reduce){
 .is-3d .featured-card{transition:none}
 .reason:hover,.reason:focus-visible{transform:none}
 .reason:hover .reason-icon,.reason:focus-visible .reason-icon{transform:none}
}

/* Mobile: cinematic hero and compact photography below the fold. */
@media (max-width:700px){
  .hero .slide img[src*="poste"],.hero .slide img[data-src*="poste"]{object-position:66% 38%!important}
  .hero{padding-top:calc(var(--head) + 1rem);padding-bottom:2.5rem}
  .hero-copy h1{font-size:clamp(1.75rem,8vw,2.5rem);line-height:1.05}
  .hero-copy>p{font-size:clamp(.875rem,3.8vw,1rem);line-height:1.5;margin-bottom:1.25rem}
  .hero-copy>.actions{flex-wrap:nowrap;gap:.5rem}
  .hero-copy>.actions .btn{min-height:44px;padding:.6rem .7rem;font-size:clamp(.7rem,3.2vw,.875rem);white-space:nowrap}
  .about{padding-block:3rem}
  .about-grid{gap:1.75rem}
  .about-photo{width:min(100%,240px);justify-self:center}
  .about-photo img{height:auto;aspect-ratio:auto}
  .about-text .process-step h4,.about-text .process-step p{overflow-wrap:anywhere}
  .solution-card,.js .solution-card.is-expanded{grid-template-columns:minmax(0,1fr);gap:1.25rem;min-height:0;padding-block:22px}
  .solution-photo,.js .solution-card.is-expanded .solution-photo{min-height:0}
  .solution-photo img{position:static;height:auto;max-height:300px;object-fit:contain}
  .js .solution-card.is-expanded .solution-photo img{transform:none}
  .solution-trigger{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;padding-right:0}
  .solution-sign{position:static;flex:none}
}