:root{--navy:#0a2743;--navy-2:#123b5d;--orange:#ef6b25;--orange-2:#ff8b44;--ink:#18232d;--muted:#5d6b77;--line:#dce3e8;--soft:#f3f6f8;--white:#fff;--shadow:0 20px 60px rgba(6,29,50,.14);--radius:2px;--shell:min(1180px,calc(100% - 40px))}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:86px}body{margin:0;color:var(--ink);font:16px/1.65 Montserrat,Arial,sans-serif;background:#fff}body.menu-open{overflow:hidden}img{display:block;max-width:100%}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.shell{width:var(--shell);margin-inline:auto}.section{padding:104px 0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:10px;left:10px;z-index:1000;padding:10px 16px;background:#fff;color:var(--navy);transform:translateY(-150%)}.skip-link:focus{transform:none}.eyebrow{margin:0 0 14px;color:var(--orange);font-size:.78rem;font-weight:800;letter-spacing:.16em}.eyebrow.light{color:#ff9b5a}h1,h2,h3{font-family:"Arial Narrow",Arial,sans-serif;line-height:1.05;margin:0;color:var(--navy)}h1{max-width:860px;font-size:clamp(3rem,7vw,6.8rem);letter-spacing:-.045em}h2{font-size:clamp(2.25rem,4.6vw,4.3rem);letter-spacing:-.035em}h3{font-size:1.8rem;letter-spacing:-.02em}.site-header{height:82px;position:fixed;inset:0 0 auto;z-index:100;background:rgba(255,255,255,.95);border-bottom:1px solid rgba(10,39,67,.1);backdrop-filter:blur(18px)}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.brand{display:inline-flex;align-items:center;gap:11px}.brand-mark{display:grid;place-items:center;width:43px;height:43px;background:linear-gradient(135deg,var(--navy) 0 66%,var(--orange) 66%);color:#fff;font-size:1.55rem;font-weight:900;line-height:1;clip-path:polygon(16% 0,84% 0,100% 50%,84% 100%,16% 100%,0 50%)}.brand-copy{display:flex;flex-direction:column;line-height:1}.brand-copy strong{font-size:1.25rem;letter-spacing:.075em;color:var(--navy)}.brand-copy small{margin-top:5px;color:var(--orange);font-size:.58rem;font-weight:800;letter-spacing:.15em}.main-nav{display:flex;align-items:center;gap:28px;font-size:.89rem;font-weight:700;color:#304453}.main-nav a{padding:10px 0}.main-nav a:hover{color:var(--orange)}.main-nav .nav-contact{padding:10px 18px;color:#fff;background:var(--navy)}.menu-toggle{display:none;border:0;background:none;padding:9px}.menu-toggle span:not(.sr-only){display:block;width:25px;height:2px;margin:5px;background:var(--navy)}.hero{position:relative;min-height:760px;height:100svh;display:flex;align-items:center;color:#fff;overflow:hidden}.hero-image,.hero-shade,.hero-grid{position:absolute;inset:0}.hero-image{background:url('/assets/hero.webp') center 56%/cover no-repeat;transform:scale(1.015)}.hero-shade{background:linear-gradient(90deg,rgba(4,25,44,.96) 0%,rgba(6,31,53,.88) 45%,rgba(7,33,55,.38) 76%,rgba(7,33,55,.18) 100%)}.hero-grid{opacity:.13;background-image:linear-gradient(rgba(255,255,255,.3) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.3) 1px,transparent 1px);background-size:72px 72px;mask-image:linear-gradient(90deg,#000,transparent 72%)}.hero-content{position:relative;z-index:2;padding-top:70px}.hero h1{color:#fff}.hero-lead{max-width:710px;margin:24px 0 32px;font-size:1.12rem;line-height:1.65;color:#dce6ed}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.button{display:inline-flex;justify-content:center;align-items:center;min-height:52px;padding:13px 22px;border:1px solid transparent;font-size:.92rem;font-weight:800;transition:.2s ease;cursor:pointer}.button-primary{background:var(--orange);color:#fff}.button-primary:hover{background:var(--orange-2);transform:translateY(-2px)}.button-ghost{border-color:rgba(255,255,255,.56);color:#fff;background:rgba(255,255,255,.05)}.button-ghost:hover{background:#fff;color:var(--navy)}.hero-proof{position:absolute;z-index:2;bottom:0;left:50%;transform:translateX(-50%);display:grid;grid-template-columns:repeat(3,1fr);background:#fff;color:var(--navy);box-shadow:var(--shadow)}.hero-proof span{padding:19px 24px;text-align:center;font-size:.78rem;font-weight:800;letter-spacing:.04em;border-right:1px solid var(--line)}.hero-proof span:last-child{border:0}.section-intro{max-width:770px;margin-bottom:48px}.section-intro>p:last-child{font-size:1.08rem;color:var(--muted);margin:18px 0 0}.split-intro{max-width:none;display:grid;grid-template-columns:1.25fr .75fr;gap:70px;align-items:end}.service-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line)}.service-card{position:relative;min-height:390px;padding:38px 34px;border-right:1px solid var(--line);background:#fff}.service-card:last-child{border:0}.service-card.featured{background:var(--navy);color:#dce7ef}.service-card.featured h3{color:#fff}.service-number{display:block;margin-bottom:72px;color:var(--orange);font-weight:900}.service-card p{color:var(--muted);margin:18px 0 22px}.service-card.featured p{color:#b8c8d4}.service-card ul{list-style:none;margin:0;padding:0}.service-card li{padding:8px 0;border-top:1px solid var(--line);font-size:.9rem}.service-card.featured li{border-color:rgba(255,255,255,.14)}.dark-section{background:var(--navy);color:#dce6ed}.dark-section h2{color:#fff}.process-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:90px;align-items:start}.process-heading{position:sticky;top:130px}.process-heading p:last-child{max-width:430px;color:#b6c7d3;font-size:1.05rem}.process-list{list-style:none;margin:0;padding:0;border-top:1px solid rgba(255,255,255,.18)}.process-list li{display:grid;grid-template-columns:64px 1fr;gap:22px;padding:23px 0;border-bottom:1px solid rgba(255,255,255,.18)}.process-list>li>span{color:var(--orange);font-size:.85rem;font-weight:900}.process-list strong{display:block;color:#fff;font-size:1.18rem}.process-list p{margin:4px 0 0;color:#afc2cf}.project-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:20px}.project-card{position:relative;min-height:560px;overflow:hidden;background:#111}.project-card img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;transition:transform .5s ease}.project-large img{object-position:center 44%}.project-card:after{content:"";position:absolute;inset:40% 0 0;background:linear-gradient(transparent,rgba(4,20,34,.92))}.project-card:hover img{transform:scale(1.025)}.project-info{position:absolute;z-index:2;inset:auto 30px 30px;color:#e6eef4}.project-info p{margin:0 0 9px;color:#ff9b5a;font-size:.75rem;font-weight:900;letter-spacing:.16em}.project-info h3{color:#fff;font-size:2rem}.project-info span{display:block;max-width:460px;margin-top:10px;color:#c5d2dc}.technical{background:var(--soft)}.technical-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:76px;align-items:center}.technical-copy .lead{max-width:680px;color:var(--muted);font-size:1.06rem}.tool-list{margin:34px 0}.tool-list>div{display:grid;grid-template-columns:50px 1fr;gap:18px;padding:18px 0;border-top:1px solid #cbd5dc}.tool-list p{margin:0;color:var(--muted)}.tool-list strong{color:var(--navy)}.tool-icon{color:var(--orange);font-weight:900}.text-link{font-weight:900;color:var(--navy);border-bottom:2px solid var(--orange);padding-bottom:4px}.technical-panel{padding:40px;background:var(--navy);color:#fff;box-shadow:var(--shadow)}.panel-kicker{margin:0 0 20px;color:#ff9b5a;font-size:.75rem;font-weight:900;letter-spacing:.16em}.technical-panel ul{list-style:none;margin:0 0 26px;padding:0}.technical-panel li{display:grid;grid-template-columns:42px 1fr;gap:14px;padding:17px 0;border-top:1px solid rgba(255,255,255,.16);font-weight:700}.technical-panel li span{color:#ff9b5a}.technical-panel small{display:block;color:#adc0cd;line-height:1.6}.knowledge-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-left:1px solid var(--line)}details{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px 28px}summary{cursor:pointer;list-style:none;color:var(--navy);font-weight:900;padding-right:30px;position:relative}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:0;top:-4px;color:var(--orange);font-size:1.5rem}details[open] summary:after{content:"−"}details p{margin:18px 0 0;color:var(--muted)}.contact-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:90px}.contact-copy>p:not(.eyebrow){color:#b8c8d4;font-size:1.05rem}.contact-direct{display:flex;flex-direction:column;align-items:flex-start;gap:9px;margin-top:30px}.contact-direct a{font-weight:800;color:#fff}.contact-direct a:hover{color:#ff9b5a}.contact-direct span{color:#9eb2c1}.contact-form{display:grid;gap:18px;padding:34px;background:#fff;color:var(--ink)}.contact-form label{display:grid;gap:7px;font-size:.82rem;font-weight:800;color:var(--navy)}.contact-form input,.contact-form select,.contact-form textarea{width:100%;border:1px solid #cbd5dc;border-radius:0;padding:13px 14px;color:var(--ink);background:#fff;outline:none}.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(239,107,37,.12)}.contact-form textarea{resize:vertical}.form-submit{border:0}.form-note{margin:-4px 0 0;text-align:center;color:#70808d;font-size:.75rem}.site-footer{padding:28px 0;background:#061b2e;color:#9fb1bf}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}.footer-brand .brand-copy strong{color:#fff}.footer-inner p{margin:0;font-size:.78rem}.whatsapp-float{position:fixed;z-index:90;right:22px;bottom:22px;display:grid;place-items:center;width:58px;height:58px;border-radius:50%;background:#25d366;box-shadow:0 12px 34px rgba(0,0,0,.26);transition:.2s}.whatsapp-float:hover{transform:translateY(-3px) scale(1.03)}.whatsapp-float svg{width:31px;fill:#fff}
@media(max-width:900px){:root{--shell:min(100% - 30px,720px)}.section{padding:78px 0}.menu-toggle{display:block}.main-nav{position:fixed;inset:82px 0 0;display:flex;flex-direction:column;align-items:stretch;gap:0;padding:30px;background:#fff;transform:translateX(100%);transition:.25s ease}.main-nav.open{transform:none}.main-nav a{padding:17px 0;border-bottom:1px solid var(--line);font-size:1rem}.main-nav .nav-contact{margin-top:16px;padding:15px 18px;text-align:center}.hero{min-height:760px;height:100svh}.hero-image{background-position:58% center}.hero-shade{background:linear-gradient(90deg,rgba(4,25,44,.96),rgba(4,25,44,.67))}.hero-proof{width:100%;grid-template-columns:1fr}.hero-proof span{display:none}.hero-proof span:first-child{display:block;border:0}.split-intro,.process-layout,.technical-layout,.contact-layout{grid-template-columns:1fr;gap:38px}.process-heading{position:static}.service-grid{grid-template-columns:1fr}.service-card{min-height:auto;border-right:0;border-bottom:1px solid var(--line)}.service-number{margin-bottom:30px}.project-grid{grid-template-columns:1fr}.project-card{min-height:500px}.knowledge-grid{grid-template-columns:1fr}.footer-inner{flex-direction:column;align-items:flex-start}.footer-brand{display:none}}
@media(max-width:560px){:root{--shell:calc(100% - 28px)}.site-header{height:72px}.brand-mark{width:39px;height:39px}.brand-copy strong{font-size:1.05rem}.brand-copy small{font-size:.5rem}.main-nav{inset:72px 0 0}.hero{min-height:700px}.hero-content{padding:72px 0 90px}.hero h1{font-size:clamp(2.75rem,15vw,4.4rem)}.hero-lead{font-size:1rem}.hero-actions{display:grid}.button{width:100%}.section{padding:66px 0}.section-intro{margin-bottom:34px}.service-card{padding:30px 24px}.project-card{min-height:450px}.project-large{min-height:360px}.project-info{inset:auto 22px 24px}.project-info h3{font-size:1.65rem}.technical-panel,.contact-form{padding:27px 23px}.knowledge-grid{border-left:0}details{padding:23px 20px;border-left:1px solid var(--line)}.contact-layout{gap:30px}.whatsapp-float{width:54px;height:54px;right:15px;bottom:15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}

/* Ajustes de marca y lectura móvil */
.brand-logo{position:relative;display:block;width:241px;height:64px;overflow:hidden;flex:0 0 auto}
.brand-logo img{position:absolute;left:-17px;top:-45px;width:275px;height:auto;max-width:none}
.footer-brand .brand-logo{width:220px;height:58px}
.footer-brand .brand-logo img{left:-16px;top:-42px;width:251px}
h1{font-size:clamp(3rem,6vw,5.4rem);max-width:790px}
@media(max-width:900px){
  .menu-toggle{display:grid;width:48px;height:48px;padding:0;margin:0;place-content:center;align-self:center;transform:none}
  .menu-toggle span:not(.sr-only){margin:4px 0}
}

/* Distribución de los cinco servicios */
.service-grid{grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line)}
.service-card{grid-column:span 2;min-height:360px;border:0}
.service-card:nth-child(n+4){grid-column:span 3}
.service-number{margin-bottom:54px}
.service-card p{margin-bottom:0}
@media(max-width:900px){
  .service-grid{grid-template-columns:1fr}
  .service-card,.service-card:nth-child(n+4){grid-column:span 1;min-height:auto;border-bottom:0}
}
@media(max-width:560px){
  .brand-logo{width:200px;height:48px}
  .brand-logo img{left:-14px;top:-38px;width:229px}
  .hero{height:auto;min-height:780px}
  .hero-content{padding:126px 0 112px}
  .hero h1{font-size:clamp(2.55rem,11vw,2.8rem);line-height:1.03;letter-spacing:-.035em}
}

@media(max-width:900px){
  body.menu-open::before{content:"";position:fixed;z-index:90;inset:72px 0 0;background:rgba(3,20,35,.5);backdrop-filter:blur(2px)}
  .main-nav{z-index:101;inset:78px 14px auto auto;width:min(340px,calc(100% - 28px));height:auto;padding:12px 18px 16px;background:#fff;border:1px solid rgba(10,39,67,.14);box-shadow:0 20px 50px rgba(3,20,35,.28);transform:translateY(-10px);opacity:0;visibility:hidden;pointer-events:none}
  .main-nav.open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto}
  .main-nav a{padding:14px 4px;color:var(--navy);background:#fff}
  .main-nav .nav-contact{margin-top:10px;color:#fff;background:var(--navy);border-bottom:0}
  .menu-toggle{position:relative;z-index:102}
  .menu-toggle span:not(.sr-only){transition:transform .2s ease,opacity .2s ease}
  .menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(10px) rotate(45deg)}
  .menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  .menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-10px) rotate(-45deg)}
}

/* Galería de servicios respaldados por experiencia */
.project-grid{grid-template-columns:repeat(12,1fr);grid-auto-rows:310px;gap:20px}
.project-card{min-height:0}
.project-remodeling,.project-civil{grid-column:span 6;grid-row:span 1}
.project-maintenance,.project-survey,.project-housing{grid-column:span 4}
.project-remodeling img{object-position:center 48%}
.project-civil img{object-position:center 48%}
.project-maintenance img{object-position:center 28%}
.project-survey img{object-position:center 45%}
.project-housing img{object-position:center 56%}
.project-card:after{inset:35% 0 0;background:linear-gradient(transparent,rgba(4,20,34,.94))}
.project-info{inset:auto 28px 28px}
.project-info p{margin-bottom:8px;font-size:.72rem}
.project-info h3{font-size:1.85rem}
.project-info span{margin-top:9px;line-height:1.5}

@media(max-width:900px){
  .project-grid{grid-template-columns:1fr;grid-auto-rows:auto}
  .project-card,.project-remodeling,.project-civil,.project-maintenance,.project-survey,.project-housing{grid-column:1;grid-row:auto;min-height:500px}
}

@media(max-width:560px){
  .project-card,.project-remodeling,.project-civil,.project-maintenance,.project-survey,.project-housing{min-height:410px}
  .project-info span{font-size:.92rem}
}

/* Artículos y páginas editoriales */
.article-grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.article-card{display:flex;flex-direction:column;min-height:340px;padding:34px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.article-card:first-child{background:var(--navy);color:#dce6ed}
.article-card:first-child h3{color:#fff}
.article-meta{margin:0 0 48px;color:var(--orange);font-size:.72rem;font-weight:900;letter-spacing:.14em}
.article-card h3{font-size:2rem;line-height:1.12}
.article-card>p:not(.article-meta){margin:18px 0 30px;color:var(--muted)}
.article-card:first-child>p:not(.article-meta){color:#b8c8d4}
.article-link{display:inline-flex;align-items:center;gap:10px;margin-top:auto;color:var(--navy);font-weight:900}
.article-card:first-child .article-link{color:#fff}
.article-link span{color:var(--orange);transition:transform .2s}
.article-link:hover span{transform:translateX(4px)}
.article-page{background:var(--soft)}
.article-page .site-header{position:sticky}
.article-page-main{padding:70px 0 100px}
.article-breadcrumb{margin:0 0 36px;color:var(--muted);font-size:.85rem;font-weight:700}
.article-breadcrumb a{color:var(--navy);border-bottom:1px solid var(--orange)}
.article-header{max-width:960px;margin-bottom:54px;padding-bottom:42px;border-bottom:1px solid #cbd5dc}
.article-header h1{max-width:940px;font-size:clamp(2.65rem,6vw,5rem);color:var(--navy)}
.article-header .article-deck{max-width:780px;margin:24px 0 0;color:var(--muted);font-size:1.18rem;line-height:1.7}
.article-byline{display:flex;flex-wrap:wrap;gap:18px;margin-top:24px;color:#6d7a84;font-size:.82rem;font-weight:800;letter-spacing:.04em}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 260px;gap:80px;align-items:start}
.article-body{font-size:1.06rem;line-height:1.8}
.article-body h2{margin:54px 0 18px;font-size:clamp(1.8rem,3vw,2.45rem);line-height:1.15}
.article-body h3{margin:34px 0 12px;font-size:1.38rem}
.article-body p{margin:0 0 22px}
.article-body ul,.article-body ol{margin:0 0 26px;padding-left:24px}
.article-body li{margin:8px 0;padding-left:4px}
.article-body .article-lead{font-size:1.18rem;color:#314351}
.article-body .decision-box{margin:42px 0;padding:30px;border-left:4px solid var(--orange);background:#fff}
.article-body .decision-box h2{margin:0 0 16px;font-size:1.65rem}
.article-sidebar{position:sticky;top:118px;padding:28px;background:var(--navy);color:#dce6ed}
.article-sidebar p{margin:0 0 16px;color:#ff9b5a;font-size:.72rem;font-weight:900;letter-spacing:.14em}
.article-sidebar ul{list-style:none;margin:0;padding:0}
.article-sidebar li{padding:13px 0;border-top:1px solid rgba(255,255,255,.16)}
.article-sidebar a{color:#fff;font-size:.9rem;font-weight:700}
.article-cta{margin-top:64px;padding:34px;background:var(--navy);color:#dce6ed}
.article-cta h2{margin:0 0 12px;color:#fff;font-size:2rem}
.article-cta p{max-width:650px;margin:0 0 22px}
.article-cta .button{width:auto}
@media(max-width:900px){
  .article-grid{grid-template-columns:1fr}
  .article-card{min-height:300px}
  .article-layout{grid-template-columns:1fr;gap:48px}
  .article-sidebar{position:static}
}
@media(max-width:560px){
  .article-card{min-height:280px;padding:28px 24px}
  .article-meta{margin-bottom:34px}
  .article-page-main{padding:48px 0 70px}
  .article-header{margin-bottom:38px;padding-bottom:32px}
  .article-header h1{font-size:2.45rem}
  .article-header .article-deck,.article-body .article-lead{font-size:1.05rem}
  .article-body{font-size:1rem}
  .article-body h2{margin-top:42px}
  .article-body .decision-box,.article-cta{padding:24px 20px}
}