:root{
  --azul:#123D8D; --azul-osc:#0E2F6E; --azul-claro:#EDF2FB; --borde-azul:#C4D0E8;
  --tinta:#16181D; --texto:#3c414a; --texto-2:#565b63; --tenue:#8a8f97;
  --linea:#E6E9EE; --linea-2:#E8E8E8; --fondo-2:#F5F6F8;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'IBM Plex Sans',system-ui,-apple-system,sans-serif;color:var(--tinta);background:#fff;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:var(--azul);text-decoration:none}
a:hover{color:var(--azul-osc)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--azul);outline-offset:3px;border-radius:3px}
::selection{background:var(--azul);color:#fff}
ul,ol{list-style:none}

.wrap{max-width:1200px;margin:0 auto;padding:0 clamp(20px,5vw,48px)}
section{scroll-margin-top:96px}
@media(max-width:900px){section{scroll-margin-top:86px}}
.pad{padding:clamp(64px,10vw,120px) 0}
.gris{background:var(--fondo-2);border-top:1px solid #EDEFF2;border-bottom:1px solid #EDEFF2}
.eyebrow{font-family:var(--mono);font-size:12.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--azul);font-weight:700}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem);line-height:1.1;letter-spacing:-.018em;font-weight:700;color:var(--tinta);margin:16px 0 0;text-wrap:balance}
.lede{margin:18px 0 0;font-size:clamp(1rem,1.4vw,1.12rem);line-height:1.6;color:var(--texto-2);text-wrap:pretty}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--azul);color:#fff;padding:14px 24px;border:none;border-radius:10px;font-weight:600;font-size:15px;cursor:pointer;transition:background .2s,transform .2s}
.btn:hover{background:var(--azul-osc);color:#fff;transform:translateY(-2px)}
.btn-2{background:#fff;color:var(--azul);border:1px solid var(--borde-azul)}
.btn-2:hover{background:#F3F6FC;border-color:var(--azul);color:var(--azul);transform:none}

/* banda deslizante de palabras clave */
.ticker{background:var(--azul);overflow:hidden;position:relative}
.ticker-track{display:flex;width:max-content;animation:tick 46s linear infinite}
@media (hover:hover) and (pointer:fine){.ticker-track:hover{animation-play-state:paused}}
.ticker-group{display:flex;align-items:center;flex:0 0 auto}
.ticker-item{display:inline-flex;align-items:center;gap:20px;padding:15px 0;color:#fff;font-family:var(--mono);font-size:12.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;white-space:nowrap}
.ticker-item::after{content:'';width:5px;height:5px;border-radius:50%;background:#7FA0DA;flex:0 0 auto}
.ticker-item{padding-left:20px}
@keyframes tick{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* cinta de fotos en obra */
.foto-ticker{background:#fff;overflow:hidden;position:relative;isolation:isolate}
.foto-ticker::before,.foto-ticker::after{content:'';position:absolute;top:0;bottom:0;width:clamp(50px,9vw,130px);z-index:2;pointer-events:none}
.foto-ticker::before{left:0;background:linear-gradient(to right,#fff 0%,rgba(255,255,255,.7) 45%,rgba(255,255,255,0) 100%)}
.foto-ticker::after{right:0;background:linear-gradient(to left,#fff 0%,rgba(255,255,255,.7) 45%,rgba(255,255,255,0) 100%)}
.foto-ticker-track{display:flex;width:max-content;animation:tickimg 78s linear infinite}
@media (hover:hover) and (pointer:fine){.foto-ticker-track:hover{animation-play-state:paused}}
.foto-ticker-group{display:flex;align-items:center;flex:0 0 auto}
.foto-ticker-item{height:clamp(160px,22vw,260px);flex:0 0 auto;margin-right:4px}
.foto-ticker-item img{height:100%;width:auto;display:block;object-fit:cover}
@keyframes tickimg{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media(prefers-reduced-motion:reduce){
  .foto-ticker-track{animation:none}
  .foto-ticker{overflow-x:auto}
}
@media(prefers-reduced-motion:reduce){
  .ticker-track{animation:none}
  .ticker{overflow-x:auto}
}

/* header */
header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.9);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--linea-2)}
.nav{height:80px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.nav .logo img{height:44px;width:auto}
.nav-desk{display:flex;align-items:center;gap:26px}
.nav-desk a.link{font-size:15px;color:var(--texto);font-weight:500;transition:color .18s}
.nav-desk a.link:hover{color:var(--azul)}
.nav-wa{background:var(--azul);color:#fff;padding:10px 18px;border-radius:8px;font-size:14px;font-weight:600;white-space:nowrap;transition:background .2s}
.nav-wa:hover{background:var(--azul-osc);color:#fff}
.burger{display:none;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid #E1E4E9;border-radius:9px;background:#fff;cursor:pointer}
.menu-mob{display:none;border-top:1px solid var(--linea-2);background:#fff;padding:10px clamp(20px,5vw,48px) 22px}
.menu-mob a{padding:14px 2px;font-size:16px;color:var(--tinta);font-weight:500;border-bottom:1px solid #F0F1F4;display:block}
.menu-mob .btn{margin-top:16px;width:100%}
@media(max-width:900px){
  .nav-desk{display:none}
  .burger{display:inline-flex}
  .menu-mob.open{display:block}
  .nav{height:70px}
  .nav .logo img{height:38px}
}

/* hero */
.hero{padding:clamp(52px,8vw,96px) 0 clamp(44px,5vw,64px)}
.hero-top{max-width:1000px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,64px);align-items:center;margin-top:clamp(28px,3.5vw,44px)}
.hero h1{font-size:clamp(2.2rem,5.4vw,3.7rem);line-height:1.06;letter-spacing:-.022em;font-weight:700;margin:18px 0 0;color:var(--tinta)}
.hero .sub{margin:24px 0 0;font-size:clamp(1.05rem,1.6vw,1.28rem);line-height:1.6;color:#4a4f57;max-width:52ch;text-wrap:pretty}
.hero-ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:24px 20px;margin-top:clamp(40px,5vw,58px);padding-top:26px;border-top:1px solid #E3E6EB}
.stats .n{font-size:clamp(1.5rem,2.4vw,1.9rem);font-weight:700;color:var(--azul);line-height:1}
.stats .l{font-size:13px;color:#666;margin-top:5px}
.hero-img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;border-radius:10px;border:1px solid #E2E5EA;box-shadow:0 30px 60px -30px rgba(16,24,40,.35)}
.hist-img{aspect-ratio:4/5}

/* carrusel de historia */
.hist-carousel{position:relative;aspect-ratio:16/9;border-radius:10px;overflow:hidden;border:1px solid #E2E5EA;box-shadow:0 30px 60px -30px rgba(16,24,40,.35);background:#EEF0F3}
.hist-track{display:flex;width:100%;height:100%;transition:transform .55s cubic-bezier(.4,0,.2,1)}
.hist-slide{flex:0 0 100%;height:100%;margin:0}
.hist-slide img{width:100%;height:100%;object-fit:cover;display:block}
.hist-slide.vertical img{object-position:center 50%}
.hist-arrow{position:absolute;top:50%;transform:translateY(-50%);width:38px;height:38px;border-radius:50%;border:none;background:rgba(10,16,32,.45);color:#fff;font-size:20px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s;z-index:2}
.hist-arrow:hover{background:rgba(10,16,32,.7)}
.hist-arrow.prev{left:12px}
.hist-arrow.next{right:12px}
.hist-dots{position:absolute;left:0;right:0;bottom:14px;display:flex;justify-content:center;gap:8px;z-index:2}
.hist-dots button{width:8px;height:8px;border-radius:50%;border:none;background:rgba(255,255,255,.55);padding:0;cursor:pointer;transition:background .2s,transform .2s}
.hist-dots button[aria-selected="true"]{background:#fff;transform:scale(1.25)}
@media(prefers-reduced-motion:reduce){.hist-track{transition:none}}

@media(max-width:860px){.hero-grid{grid-template-columns:1fr}}

/* servicios */
.cards{margin-top:clamp(36px,5vw,56px);display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}
.card{border:1px solid var(--linea);border-radius:14px;padding:clamp(24px,3vw,32px);background:#fff;display:flex;flex-direction:column;gap:14px;box-shadow:0 1px 2px rgba(16,24,40,.04),0 10px 26px -20px rgba(16,24,40,.28);transition:border-color .25s,box-shadow .25s,transform .25s}
.card:hover{border-color:var(--borde-azul);box-shadow:0 20px 40px -28px rgba(16,24,40,.3);transform:translateY(-4px)}
.card .n{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--azul);letter-spacing:.05em}
.card h3{font-size:1.24rem;line-height:1.25;font-weight:600;letter-spacing:-.01em}
.card p{font-size:15px;line-height:1.55;color:var(--texto-2)}
.card ul{display:flex;flex-direction:column;gap:11px;margin-top:4px}
.card li{display:flex;gap:11px;align-items:flex-start;font-size:14.5px;color:#4a4f57;line-height:1.5}
.dot{flex:0 0 auto;width:6px;height:6px;background:var(--azul);border-radius:1px;margin-top:8px}

/* historia */
.dos-col{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:clamp(32px,5vw,64px);align-items:center}
.hist p:not(.eyebrow){margin:20px 0 0;font-size:1.05rem;line-height:1.65;color:#4a4f57;text-wrap:pretty}
.pills{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.pill{background:#fff;border:1px solid #E3E6EB;border-radius:10px;padding:14px 18px}
.pill .a{font-size:1.2rem;font-weight:700;color:var(--azul);line-height:1}
.pill .b{font-size:12.5px;color:#666;margin-top:4px}
blockquote{margin:clamp(40px,6vw,64px) 0 0;border-left:3px solid var(--azul);padding:6px 0 6px 26px;font-size:clamp(1.3rem,2.7vw,2rem);line-height:1.3;font-weight:500;letter-spacing:-.01em;max-width:900px;text-wrap:balance}

/* galería */
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{border:1px solid #D5D9E0;background:#fff;color:var(--texto);padding:9px 18px;border-radius:999px;font-size:14px;font-weight:500;cursor:pointer;transition:background .18s,color .18s,border-color .18s}
.chip:hover{border-color:var(--azul);color:var(--azul)}
.chip[aria-pressed="true"]{background:var(--azul);color:#fff;border-color:var(--azul)}
.arrows{display:flex;gap:8px}
.arrow{width:44px;height:44px;border:1px solid #D5D9E0;background:#fff;border-radius:10px;cursor:pointer;font-size:20px;color:var(--tinta);display:flex;align-items:center;justify-content:center;transition:border-color .2s,color .2s}
.arrow:hover{border-color:var(--azul);color:var(--azul)}
.track{margin-top:22px;display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding:2px 2px 18px;-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:#c8cdd6 transparent;transition:opacity .3s ease}
.track::-webkit-scrollbar{height:8px}
.track::-webkit-scrollbar-track{background:transparent}
.track::-webkit-scrollbar-thumb{background:#cdd2db;border-radius:8px}
figure{flex:0 0 clamp(240px,74vw,318px);scroll-snap-align:start;background:#fff;border:1px solid var(--linea);border-radius:12px;overflow:hidden;display:flex;flex-direction:column}
figure img{width:100%;height:auto;aspect-ratio:3/4;object-fit:cover;background:#EEF0F3}
figcaption{padding:15px 16px 16px;display:flex;flex-direction:column;gap:11px;flex:1}
figcaption p{font-size:14px;line-height:1.45;color:var(--texto);flex:1}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-family:var(--mono);font-size:10.5px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--azul);background:var(--azul-claro);border-radius:5px;padding:3px 8px}
/* trabajos — grilla a todo el ancho, tarjetas que se dan vuelta */
.flip-grid{margin-top:clamp(36px,5vw,56px);width:100vw;position:relative;left:50%;right:50%;margin-left:-50vw;margin-right:-50vw;display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.flip-card{aspect-ratio:4/3;perspective:1200px}
.flip-inner{position:relative;width:100%;height:100%;text-align:left;transition:transform .6s cubic-bezier(.4,0,.2,1);transform-style:preserve-3d}
.flip-card:hover .flip-inner,.flip-card:focus-within .flip-inner{transform:rotateY(180deg)}
.flip-front,.flip-back{position:absolute;inset:0;-webkit-backface-visibility:hidden;backface-visibility:hidden;overflow:hidden}
.flip-front img{width:100%;height:100%;object-fit:cover;display:block}
.flip-front.contain{background:#0B1220}
.flip-front.contain img{object-fit:contain}
.flip-back{transform:rotateY(180deg);background:var(--azul);color:#fff;display:flex;flex-direction:column;justify-content:center;padding:clamp(24px,4vw,44px)}
.flip-back h3{font-size:clamp(1rem,1.6vw,1.2rem);line-height:1.3;font-weight:700;letter-spacing:-.01em}
.flip-back p{margin-top:12px;font-size:14px;line-height:1.55;color:#DCE5F7}
.flip-back-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;color:#fff;font-family:var(--mono);font-size:12.5px;font-weight:700;letter-spacing:.03em;text-decoration:underline;text-underline-offset:3px}
@media(max-width:860px){.flip-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.flip-grid{grid-template-columns:1fr}.flip-card{aspect-ratio:16/11}}

@media(prefers-reduced-motion:reduce){
  .flip-card{aspect-ratio:auto;perspective:none}
  .flip-inner{position:static;transition:none;transform:none!important}
  .flip-front{position:static;aspect-ratio:4/3}
  .flip-back{position:static;transform:none}
}

/* banda */
.banda{position:relative;height:clamp(320px,50vw,660px);overflow:hidden;isolation:isolate}
.banda img{width:100%;height:100%;object-fit:cover;object-position:center 42%}
.banda::before,.banda::after{content:'';position:absolute;left:0;right:0;z-index:2;pointer-events:none}
.banda::before{top:0;height:clamp(80px,13vw,150px);background:linear-gradient(to bottom,#fff 0%,rgba(255,255,255,.72) 38%,rgba(255,255,255,0) 100%)}
.banda::after{bottom:0;height:clamp(80px,13vw,150px);background:linear-gradient(to top,var(--fondo-2) 0%,rgba(245,246,248,.72) 38%,rgba(245,246,248,0) 100%)}
.banda .cap{position:absolute;inset:0;z-index:3;display:flex;align-items:center;background:linear-gradient(to right,rgba(7,16,38,.86) 0%,rgba(7,16,38,.62) 42%,rgba(7,16,38,.12) 72%,rgba(7,16,38,0) 100%)}
.banda .cap .in{max-width:1200px;width:100%;margin:0 auto;padding:0 clamp(20px,5vw,48px);color:#fff}
.banda .cap .t{font-family:var(--mono);font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#BFD0EE;text-shadow:0 1px 8px rgba(0,0,0,.5)}
.banda .cap .d{margin-top:10px;font-size:clamp(1.15rem,2.4vw,1.7rem);font-weight:700;line-height:1.25;max-width:19ch;text-wrap:balance;text-shadow:0 2px 14px rgba(0,0,0,.55)}

/* proceso */
.pcards{margin-top:clamp(34px,5vw,52px);display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.pcard{background:#fff;border:1px solid var(--linea);border-radius:14px;padding:26px;display:flex;flex-direction:column;gap:10px}
.pcard .n{font-family:var(--mono);font-size:13px;color:var(--azul);font-weight:700}
.pcard h3{font-size:1.08rem;line-height:1.3;font-weight:600;letter-spacing:-.005em}
.pcard p{font-size:14px;line-height:1.55;color:var(--texto-2)}

/* experiencia */
.form-list li{display:flex;gap:14px;align-items:flex-start;padding:18px 0;border-top:1px solid var(--linea);font-size:15.5px;line-height:1.55;color:var(--texto)}
.form-list .dot{width:7px;height:7px}

/* contacto */
.contacto-grid{margin-top:clamp(32px,4vw,48px);display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:clamp(24px,3vw,40px);align-items:start}
form.caja,.datos{background:#fff;border:1px solid var(--linea);border-radius:16px;padding:clamp(24px,3vw,34px)}
form.caja{display:flex;flex-direction:column;gap:18px}
.campo{display:flex;flex-direction:column;gap:7px}
label{font-size:13px;font-weight:600;color:var(--tinta)}
label span{color:var(--tenue);font-weight:400}
input,textarea{width:100%;padding:12px 14px;border:1px solid #D5DAE2;border-radius:9px;font-size:15px;color:var(--tinta);background:#fff;font-family:inherit;transition:border-color .18s,box-shadow .18s}
textarea{resize:vertical;line-height:1.5}
input:focus,textarea:focus{outline:none;border-color:var(--azul);box-shadow:0 0 0 3px rgba(18,61,141,.13)}
.nota{font-size:12.5px;color:var(--tenue);line-height:1.5}
.datos{display:flex;flex-direction:column;gap:22px}
.dato-lab{font-family:var(--mono);font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--tenue);margin-bottom:5px}
.dato-val{font-size:15.5px;color:var(--tinta)}
.dato-item{display:flex;gap:14px;align-items:flex-start}
.dato-ico{flex:0 0 auto;width:38px;height:38px;border-radius:9px;background:var(--azul-claro);display:flex;align-items:center;justify-content:center;color:var(--azul)}

/* footer */
footer{background:var(--azul-osc);color:#fff;padding:clamp(48px,7vw,80px) 0 36px}
.f-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:40px;align-items:start}
footer img.f-logo{height:48px;width:auto}
.f-claim{margin-top:22px;font-size:1.05rem;line-height:1.4;font-weight:500;color:#EAEFF9;max-width:26ch;text-wrap:balance}
.f-tit{font-family:var(--mono);font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#9DB2DC;margin-bottom:16px}
.f-links{display:flex;flex-direction:column;gap:14px}
.f-link{display:inline-flex;align-items:center;gap:11px;color:#EAEFF9;font-size:14.5px;transition:color .18s}
.f-link:hover{color:#fff}
.f-link svg{flex:0 0 auto;opacity:.85}
.f-link:hover svg{opacity:1}
.f-social{display:flex;gap:10px;margin-top:24px}
.f-social a{width:42px;height:42px;border-radius:10px;border:1px solid rgba(255,255,255,.22);display:flex;align-items:center;justify-content:center;color:#fff;transition:background .2s,border-color .2s}
.f-social a:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.45);color:#fff}
.f-bottom{margin-top:clamp(36px,5vw,56px);padding-top:24px;border-top:1px solid rgba(255,255,255,.16);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#9DB2DC}

/* reveal */
[data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
[data-reveal].vis{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
  [data-reveal]{opacity:1!important;transform:none!important}
  .track{scroll-behavior:auto}
}