:root{
  --navy:#17306F;
  --navy-d:#0E1F4A;
  --navy-dd:#0A1633;
  --accent:#3D7BFF;
  --ink:#16203A;
  --muted:#5B6782;
  --line:#E3E7EF;
  --bg:#FFFFFF;
  --bg-alt:#F4F6FA;
  --radius:14px;
  --shadow:0 10px 30px rgba(14,31,74,.10);
  --head:'Montserrat',system-ui,sans-serif;
  --body:'Inter',system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;font-family:var(--body);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--head);line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em}
h2{font-size:clamp(1.6rem,3.2vw,2.4rem);font-weight:800;color:var(--navy-d)}
h3{font-size:1.08rem;font-weight:700}
p{margin:0 0 1em}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:600px){.wrap{padding:0 16px}}

.eyebrow{font-family:var(--head);font-weight:700;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:#9DB6FF;margin-bottom:14px}
.eyebrow.dark{color:var(--accent)}

/* Botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--head);font-weight:700;font-size:.95rem;padding:14px 26px;border-radius:999px;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:transform .15s,background .2s,color .2s,border-color .2s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#2F68E6}
.btn-ghost{border-color:rgba(255,255,255,.7);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-light{background:#fff;color:var(--navy)}
.btn-sm{padding:9px 18px;font-size:.85rem}
.form .btn-ghost{border-color:var(--navy);color:var(--navy)}
.form .btn-ghost:hover{background:var(--bg-alt)}

/* Navegación */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;transition:background .25s,box-shadow .25s}
.nav.solid{background:rgba(10,22,51,.96);box-shadow:0 4px 20px rgba(0,0,0,.25);backdrop-filter:blur(6px)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:76px}
.nav-logo img{width:190px;height:auto}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{color:#fff;text-decoration:none;font-weight:500;font-size:.93rem;opacity:.9}
.nav-links a:hover{opacity:1}
.nav-links a.btn{opacity:1;color:var(--navy)}
.nav-toggle{display:none;background:none;border:0;padding:8px;cursor:pointer}
.nav-toggle span{display:block;width:24px;height:2px;background:#fff;margin:5px 0;transition:.2s}
@media (max-width:960px){
  .nav{background:rgba(10,22,51,.96)}
  .nav-toggle{display:block}
  .nav-links{position:absolute;top:76px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--navy-dd);padding:8px 16px 18px;display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 4px;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-links a.btn{margin-top:12px;border:0}
  .nav-logo img{width:160px}
}

/* Portada */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;color:#fff;overflow:hidden;background:radial-gradient(ellipse at 10% 20%,#1C3C86 0%,var(--navy-dd) 60%)}
.hero-bg{position:absolute;top:0;bottom:0;right:0;left:50%;background:url(img/ia/portada-fachada.jpg) 34% center/cover no-repeat}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--navy-dd) 0%,rgba(10,22,51,.55) 14%,rgba(10,22,51,0) 38%),linear-gradient(0deg,rgba(10,22,51,.45) 0%,rgba(10,22,51,0) 30%)}
.hero-in{position:relative;width:100%;display:grid;grid-template-columns:1fr 1fr;column-gap:48px;padding-top:110px;padding-bottom:80px}
.hero-in > *{grid-column:1}
.hero h1{font-size:clamp(2rem,3.6vw,3.2rem);font-weight:800;margin-bottom:22px}
.hero .lead{font-size:clamp(1rem,1.3vw,1.12rem);color:#DCE4F5;margin-bottom:32px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
@media (max-width:900px){
  .hero-bg{left:0;background-position:30% center}
  .hero-bg::after{background:linear-gradient(180deg,rgba(8,18,44,.55) 0%,rgba(8,18,44,.88) 50%,rgba(8,18,44,.96) 100%)}
  .hero-in{grid-template-columns:1fr}
}
.hero-note{top:92px;bottom:auto;right:16px}

.img-note{position:absolute;font-size:.68rem;letter-spacing:.04em;color:rgba(255,255,255,.85);background:rgba(0,0,0,.42);padding:3px 8px;border-radius:4px;margin:0;z-index:2}

.contact-note{top:16px;right:16px}

/* Clientes */
.clients{background:var(--navy-d);color:#fff;padding:30px 0}
.clients-title{text-align:center;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:#9DB6FF;font-family:var(--head);font-weight:700;margin-bottom:16px}
.clients-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;justify-content:center;gap:10px 34px}
.clients-list li{font-family:var(--head);font-weight:700;font-size:1.02rem;color:#E8EDF8;opacity:.85;white-space:nowrap}

/* Secciones */
.section{padding:96px 0}
.section.alt{background:var(--bg-alt)}
@media (max-width:700px){.section{padding:64px 0}}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head p:last-child{color:var(--muted);font-size:1.05rem}

/* Tarjetas de soluciones */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media (max-width:960px){.cards{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.cards{grid-template-columns:1fr}}
.card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s}
.card:hover{transform:translateY(-3px)}
.card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.card .img-note{top:10px;right:10px}
.card-b{padding:20px 22px 24px}
.card-b h3{color:var(--navy-d)}
.card-b p{color:var(--muted);font-size:.95rem;margin:0}

/* Proceso */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(7,1fr);gap:14px;counter-reset:s}
.steps li{background:#fff;border-radius:var(--radius);padding:22px 18px;border-top:4px solid var(--navy);box-shadow:var(--shadow)}
.steps span{font-family:var(--head);font-weight:800;color:var(--accent);font-size:1.4rem;display:block;margin-bottom:8px}
.steps h3{font-size:.98rem;color:var(--navy-d)}
.steps p{font-size:.88rem;color:var(--muted);margin:0}
@media (max-width:1100px){.steps{grid-template-columns:repeat(4,1fr)}}
@media (max-width:700px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (max-width:420px){.steps{grid-template-columns:1fr}}

/* Casos */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.filters button{font-family:var(--head);font-weight:600;font-size:.86rem;border:1.5px solid var(--line);background:#fff;color:var(--ink);padding:8px 16px;border-radius:999px;cursor:pointer}
.filters button[aria-selected="true"]{background:var(--navy);border-color:var(--navy);color:#fff}
.case-info{min-height:3.2em;margin-bottom:18px}
.case-info h3{color:var(--navy-d);margin-bottom:2px}
.case-info p{color:var(--muted);margin:0}
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
@media (max-width:960px){.gallery{grid-template-columns:repeat(3,1fr)}}
@media (max-width:600px){.gallery{grid-template-columns:repeat(2,1fr)}}
.gallery button{padding:0;border:0;background:#dde2ec;border-radius:10px;overflow:hidden;cursor:zoom-in;aspect-ratio:4/3}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.gallery button:hover img{transform:scale(1.05)}

/* Rubros */
.sectors{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media (max-width:960px){.sectors{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.sectors{grid-template-columns:1fr}}
.sector{position:relative;border-radius:var(--radius);overflow:hidden;min-height:300px;display:flex;align-items:flex-end;color:#fff;background:var(--navy-dd)}
.sector img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.sector::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,18,44,0) 30%,rgba(8,18,44,.9) 100%)}
.sector > div{position:relative;z-index:1;padding:22px}
.sector h3{font-size:1.15rem}
.sector p{margin:0;font-size:.93rem;color:#DCE4F5}
.sector .img-note{top:10px;right:10px}

/* Por qué elegirnos */
.why{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
@media (max-width:900px){.why{grid-template-columns:1fr;gap:36px}}
.why-media{position:relative;padding-bottom:60px}
.why-media img:first-child{border-radius:var(--radius);box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover;width:88%}
.why-media img:last-child{position:absolute;right:0;bottom:0;width:48%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);border:6px solid #fff;box-shadow:var(--shadow)}
.why-list{list-style:none;padding:0;margin:0 0 30px}
.why-list li{padding:14px 0 14px 34px;border-bottom:1px solid var(--line);position:relative;color:var(--muted)}
.why-list li::before{content:"";position:absolute;left:0;top:19px;width:18px;height:18px;border-radius:50%;background:var(--navy) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='white' stroke-width='2'/%3E%3C/svg%3E") center/12px no-repeat}
.why-list strong{color:var(--ink)}

/* Contacto */
.contact{position:relative;color:#fff;padding:100px 0;overflow:hidden;background:var(--navy-dd)}
.contact-bg{position:absolute;inset:0;background:url(img/ia/edificio-corporativo-sin-cartel.jpg) center/cover no-repeat}
.contact-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,18,44,.94) 0%,rgba(8,18,44,.82) 55%,rgba(8,18,44,.7) 100%)}
.contact-in{position:relative;display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:start}
@media (max-width:900px){.contact-in{grid-template-columns:1fr;gap:36px}.contact{padding:70px 0}}
.contact h2{color:#fff}
.contact-text p{color:#DCE4F5;font-size:1.05rem}
.contact-data{list-style:none;padding:0;margin:26px 0 0}
.contact-data li{padding:8px 0;color:#DCE4F5}
.contact-data a{color:#fff;font-weight:600;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.35)}
.form{background:#fff;color:var(--ink);border-radius:var(--radius);padding:30px;box-shadow:0 20px 50px rgba(0,0,0,.35)}
@media (max-width:600px){.form{padding:20px}}
.form label{display:block;font-size:.84rem;font-weight:600;color:var(--navy-d);margin-bottom:14px}
.form input,.form select,.form textarea{display:block;width:100%;margin-top:6px;font:inherit;font-weight:400;font-size:.95rem;color:var(--ink);padding:11px 13px;border:1.5px solid var(--line);border-radius:9px;background:#fff}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(61,123,255,.15)}
.form .invalid{border-color:#D23B3B}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:520px){.row2{grid-template-columns:1fr;gap:0}}
.form-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.form-msg{margin:12px 0 0;font-size:.88rem;color:#D23B3B;min-height:1.2em}

/* Pie */
.footer{background:var(--navy-dd);color:#AEB9D3;padding:44px 0;text-align:center}
.footer-logo{width:210px;margin:0 auto 14px}
.footer p{margin:4px 0}
.footer .small{font-size:.78rem;opacity:.75;margin-top:14px}

/* WhatsApp flotante */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:60;width:58px;height:58px;border-radius:50%;background:#25D366;color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,.3);transition:transform .2s}
.wa-float:hover{transform:scale(1.07)}

/* Lightbox */
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(5,10,25,.94);display:flex;align-items:center;justify-content:center;padding:20px}
.lightbox[hidden]{display:none}
.lightbox figure{margin:0;max-width:min(1200px,100%);text-align:center}
.lightbox img{max-height:82vh;width:auto;margin:0 auto;border-radius:8px}
.lightbox figcaption{color:#CBD5EA;font-size:.9rem;margin-top:10px}
.lightbox button{position:absolute;background:rgba(255,255,255,.1);color:#fff;border:0;font-size:2rem;width:52px;height:52px;border-radius:50%;cursor:pointer;line-height:1}
.lightbox button:hover{background:rgba(255,255,255,.2)}
.lb-close{top:16px;right:16px}
.lb-prev{left:16px;top:50%;transform:translateY(-50%)}
.lb-next{right:16px;top:50%;transform:translateY(-50%)}
@media (max-width:600px){.lb-prev,.lb-next{top:auto;bottom:16px;transform:none}}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.trampa{position:absolute!important;left:-9999px;width:1px;height:1px;overflow:hidden}