:root{
  --azul:#0079ba; --azul-osc:#005a8c; --oscuro:#1f2a33; --texto:#2b2f33; --suave:#5f6b75;
  --fondo:#ffffff; --gris:#f3f6f8; --borde:#dde3e8; --radio:10px; --ancho:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--texto);background:var(--fondo);line-height:1.65;font-size:17px}
img{max-width:100%;height:auto;display:block}
a{color:var(--azul)} a:hover{color:var(--azul-osc)}
h1,h2,h3{line-height:1.25;color:var(--oscuro)}
h2{font-size:1.6rem;margin:2rem 0 1rem} h3{font-size:1.2rem;margin:1.6rem 0 .6rem}
.contenedor{max-width:var(--ancho);margin:0 auto;padding:0 20px}
.seccion{padding:48px 20px}

/* Cabecera */
.cabecera{position:sticky;top:0;z-index:50;background:#fff;border-bottom:3px solid var(--azul);box-shadow:0 2px 10px rgba(0,0,0,.06)}
.cabecera-in{display:flex;align-items:center;justify-content:space-between;min-height:78px}
.logo img{width:230px;height:auto}
.menu{display:flex;gap:4px;flex-wrap:wrap}
.menu a{padding:10px 12px;border-radius:6px;text-decoration:none;color:var(--oscuro);font-weight:600;font-size:.92rem;text-transform:uppercase;letter-spacing:.02em}
.menu a:hover{background:var(--gris);color:var(--azul)}
.menu a.activo{color:var(--azul);box-shadow:inset 0 -2px 0 var(--azul)}
.menu-btn{display:none;background:none;border:0;padding:10px;cursor:pointer}
.menu-btn span{display:block;width:26px;height:3px;background:var(--oscuro);margin:5px 0;border-radius:2px}

/* Encabezado de página */
.titulo-pagina{background:linear-gradient(120deg,var(--oscuro),#2c4a60);color:#fff;padding:42px 0}
.titulo-pagina h1{color:#fff;margin:0;font-size:2rem}
.titulo-pagina .volver{display:inline-block;margin-bottom:8px;color:#cfe6f5;text-decoration:none;font-size:.9rem}
.contenido{padding:36px 20px 60px}
.contenido ul{padding-left:1.2rem} .contenido li{margin:.3rem 0}
.contenido figure{margin:1.5rem 0} .contenido figure img{border:1px solid var(--borde);border-radius:var(--radio);cursor:zoom-in}
.contenido figcaption{color:var(--suave);font-size:.9rem;margin-top:.5rem}

/* Hero / slider */
.hero{position:relative;background:var(--oscuro)}
.slider{position:relative;height:clamp(320px,62vh,620px);overflow:hidden}
.slide{position:absolute;inset:0;margin:0;opacity:0;transition:opacity .9s ease}
.slide.activo{opacity:1}
.slide img{width:100%;height:100%;object-fit:cover}
.slide figcaption{position:absolute;right:20px;bottom:20px;background:rgba(0,0,0,.55);color:#fff;padding:6px 12px;border-radius:6px;font-size:.9rem}
.slider::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,25,35,.82) 0%,rgba(15,25,35,.45) 45%,rgba(15,25,35,0) 75%);pointer-events:none}
.slider-btn{position:absolute;top:50%;transform:translateY(-50%);z-index:3;background:rgba(255,255,255,.2);color:#fff;border:0;width:44px;height:44px;border-radius:50%;font-size:30px;line-height:1;cursor:pointer}
.slider-btn:hover{background:rgba(255,255,255,.4)} .slider-btn.prev{left:14px} .slider-btn.next{right:14px}
.hero-texto{position:absolute;z-index:2;left:0;right:0;top:50%;transform:translateY(-50%);max-width:var(--ancho);margin:0 auto;padding:0 80px;color:#fff}
.hero-texto h1{color:#fff;font-size:clamp(1.7rem,4vw,2.8rem);max-width:640px;margin:0 0 .6rem}
.hero-texto p{font-size:1.15rem;max-width:560px}
.boton{display:inline-block;background:var(--azul);color:#fff;text-decoration:none;padding:12px 22px;border-radius:8px;font-weight:600;border:0;font-size:1rem;cursor:pointer;margin:6px 8px 0 0}
.boton:hover{background:var(--azul-osc);color:#fff}
.boton.secundario{background:transparent;box-shadow:inset 0 0 0 2px #fff}
.boton.secundario:hover{background:rgba(255,255,255,.15)}

.destacado{font-size:1.2rem;color:var(--oscuro)}
.lista-columnas{columns:2 260px;column-gap:40px;padding-left:1.2rem}
.lista-columnas li{break-inside:avoid;margin:.25rem 0}
.franja{background:var(--gris);padding:48px 0}
.tarjetas{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px}
.tarjeta{display:block;background:#fff;border:1px solid var(--borde);border-top:4px solid var(--azul);border-radius:var(--radio);padding:22px;text-decoration:none;color:var(--texto);transition:transform .15s,box-shadow .15s}
.tarjeta:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(0,0,0,.08);color:var(--texto)}
.tarjeta h3{margin:0 0 .4rem;color:var(--azul)} .tarjeta p{margin:0;color:var(--suave);font-size:.95rem}
.ubicaciones{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:28px}
.ubicacion h3{margin-top:0} .ubicacion iframe{width:100%;height:300px;border:0;border-radius:var(--radio)}

/* Galería */
.galeria{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin:1rem 0 2rem;padding:0;list-style:none}
.galeria img{width:100%;aspect-ratio:1/1;object-fit:contain;background:var(--gris);border-radius:8px;cursor:zoom-in}
.contenido .galeria{padding-left:0}
.visor{border:0;padding:0;background:transparent;max-width:95vw;max-height:95vh}
.visor::backdrop{background:rgba(0,0,0,.85)}
.visor img{max-width:95vw;max-height:90vh;border-radius:6px}
.visor-cerrar{position:fixed;top:12px;right:18px;background:none;border:0;color:#fff;font-size:42px;cursor:pointer}

/* Clientes */
.logos{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:18px}
.logos li{background:#fff;border:1px solid var(--borde);border-radius:var(--radio);height:110px;display:flex;align-items:center;justify-content:center;padding:16px}
.logos img{max-height:90px;width:auto;object-fit:contain}

/* Contacto */
.contacto{display:grid;grid-template-columns:2fr 1fr;gap:40px}
.formulario label{display:block;font-weight:600;margin-bottom:14px;font-size:.95rem}
.formulario input,.formulario textarea{display:block;width:100%;margin-top:6px;padding:11px 12px;border:1px solid var(--borde);border-radius:8px;font:inherit}
.formulario input:focus,.formulario textarea:focus{outline:2px solid var(--azul);border-color:transparent}
.trampa{position:absolute!important;left:-9999px}
.datos{background:var(--gris);border-radius:var(--radio);padding:8px 22px}

/* Pie */
.pie{background:var(--oscuro);color:#c9d3da;border-top:3px solid var(--azul);font-size:.95rem}
.pie-in{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;padding-top:36px;padding-bottom:20px}
.pie strong{color:#fff} .pie a{color:#8fd0f5}
.copy{border-top:1px solid rgba(255,255,255,.1);padding-top:14px;padding-bottom:18px;font-size:.85rem}

@media (max-width:900px){
  .menu-btn{display:block}
  .menu{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;padding:8px 20px 16px;border-bottom:3px solid var(--azul)}
  .menu.abierto{display:flex}
  .contacto{grid-template-columns:1fr}
  .hero-texto{padding:0 24px}
  .slider-btn{display:none}
  .logo img{width:170px}
}
.aviso-error{background:#fdecea;color:#8a1c12;border:1px solid #f5c2bd;border-radius:8px;padding:10px 14px}