:root{--azul:#0b3d6b;--azul2:#1565c0;--acento:#f5a623;--gris:#f6f8fa;--texto:#222;--claro:#fff}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",system-ui,-apple-system,Arial,sans-serif;color:var(--texto);line-height:1.65;background:var(--claro)}
img{max-width:100%;height:auto;display:block}
.container{width:min(1180px,92%);margin:0 auto}
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:99}
/* Header */
.header{position:sticky;top:0;background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.08);z-index:50}
.header-in{display:flex;align-items:center;gap:16px;justify-content:space-between;padding:10px 0}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-name{font-size:1.25rem;font-weight:700;color:var(--azul)}
.nav ul{display:flex;gap:26px;list-style:none}
.nav a{text-decoration:none;color:var(--texto);font-weight:500;padding:6px 2px}
.nav a:hover{color:var(--azul2)}
.nav-toggle{display:none;font-size:1.4rem;background:none;border:none;cursor:pointer}
.btn{display:inline-block;background:var(--azul2);color:#fff;padding:10px 22px;border-radius:6px;text-decoration:none;font-weight:600;border:none;cursor:pointer;transition:background .2s}
.btn:hover{background:var(--azul)}
.btn-big{padding:14px 30px;font-size:1.05rem}
.btn-head{padding:8px 16px;font-size:.9rem}
/* Banner */
.banner{position:relative}
.banner img{width:100%;height:min(60vh,560px);object-fit:cover}
.banner-txt{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;color:#fff;background:linear-gradient(90deg,rgba(4,25,48,.75),rgba(4,25,48,.25))}
.banner-txt h1{font-size:clamp(1.7rem,4vw,3rem);margin-bottom:12px;text-shadow:0 2px 8px rgba(0,0,0,.4)}
.banner-txt p{max-width:640px;font-size:1.1rem;margin-bottom:22px}
.hero{background:linear-gradient(120deg,var(--azul),var(--azul2));color:#fff;padding:64px 0}
.hero h1{font-size:clamp(1.6rem,3.5vw,2.4rem)}
.hero p{margin-top:8px;opacity:.9;font-size:1.05rem}
/* Secciones */
.section{padding:64px 0}
.section.alt{background:var(--gris)}
h2{color:var(--azul);font-size:clamp(1.4rem,2.6vw,1.9rem);margin-bottom:16px}
.lead{color:#555;max-width:820px;margin-bottom:28px}
.center{text-align:center;margin-top:30px}
.center-l{margin-top:22px}
.mt{margin-top:44px}
/* Grids y tarjetas */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;margin-top:10px}
.card{background:#fff;border:1px solid #e5e9ef;border-radius:10px;overflow:hidden;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(11,61,107,.15)}
.card a{text-decoration:none;color:inherit;display:block}
.card img{width:100%;aspect-ratio:3/2;object-fit:cover}
.card h3{padding:14px 16px 4px;color:var(--azul);font-size:1.05rem}
.card .more{padding:0 16px 16px;color:var(--azul2);font-weight:600;font-size:.9rem}
.feature{background:#fff;border-radius:10px;padding:24px;border:1px solid #e5e9ef}
.feature h3{color:var(--azul);margin-bottom:8px}
.about-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:36px;align-items:center}
.about-grid img{border-radius:10px}
.tags{list-style:none;display:flex;flex-wrap:wrap;gap:12px;margin-bottom:10px}
.tags li{background:#fff;border:1px solid var(--azul2);color:var(--azul);padding:8px 16px;border-radius:999px;font-weight:500}
.case,.cert{background:#fff;border:1px solid #e5e9ef;border-radius:10px;overflow:hidden}
.case img{aspect-ratio:290/207;object-fit:cover}
.cert img{aspect-ratio:3/4;object-fit:contain;padding:10px}
figcaption{padding:10px;font-weight:600;color:var(--azul);text-align:center;font-size:.95rem}
/* CTA */
.cta{background:linear-gradient(120deg,var(--azul),var(--azul2));color:#fff;text-align:center;padding:56px 0}
.cta h2{color:#fff}
.cta .btn{background:var(--acento);color:#222;margin-top:12px}
.cta .btn:hover{background:#e2941b}
/* FAQ */
.faq details{background:#fff;border:1px solid #e5e9ef;border-radius:8px;margin-bottom:12px;padding:4px 18px}
.faq summary{cursor:pointer;padding:10px 0;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary h3{display:inline;color:var(--azul);font-size:1.05rem}
.faq details[open] summary{border-bottom:1px solid #eee}
.faq details p{padding:12px 0 14px;color:#444}
/* Producto */
.pd-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:36px;align-items:start}
.pd-grid img{border:1px solid #e5e9ef;border-radius:10px}
.specs{width:100%;border-collapse:collapse;margin-top:8px}
.specs caption{text-align:left;font-weight:600;color:#666;margin-bottom:8px}
.specs th,.specs td{border:1px solid #e5e9ef;padding:10px 14px;text-align:left}
.specs th{background:var(--gris);width:220px;color:var(--azul)}
.pgn{display:inline-block;margin:8px 12px 8px 0;color:var(--azul2);text-decoration:none;font-weight:500}
.pgn:hover{text-decoration:underline}
.pgnav{margin-top:30px}
/* Contacto */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:36px}
.form-card{background:var(--gris);border-radius:12px;padding:28px}
form label{display:block;margin:14px 0 4px;font-weight:600}
form input,form textarea{width:100%;padding:11px 12px;border:1px solid #ccd5de;border-radius:6px;font:inherit;background:#fff}
form input:focus,form textarea:focus{outline:2px solid var(--azul2)}
form .btn{margin-top:18px;width:100%}
.form-status{margin-top:12px;font-weight:600;color:var(--azul2)}
/* Footer */
.footer{background:#0a2744;color:#cfd9e4;padding:48px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:32px}
.footer h3{color:#fff;margin-bottom:10px;font-size:1.05rem}
.footer ul{list-style:none}
.footer a{color:#cfd9e4;text-decoration:none}
.footer a:hover{color:#fff}
.copy{text-align:center;border-top:1px solid rgba(255,255,255,.12);margin-top:32px;padding:18px 0;font-size:.9rem}
/* Responsive */
@media(max-width:860px){
  .about-grid,.pd-grid,.contact-grid{grid-template-columns:1fr}
  .nav-toggle{display:block}
  .nav ul{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;padding:12px 4%;box-shadow:0 8px 16px rgba(0,0,0,.12);gap:6px}
  .nav ul.open{display:flex}
  .btn-head{display:none}
  .banner img{height:420px}
}