:root{
  --azul:#20344a;--azul2:#2e78a6;--amarillo:#f2b24f;--verde:#74b58c;--caja:#d59b5c;
  --papel:#eef2f5;--blanco:#fff;--tinta:#293a4a;--suave:#6f7e8c;--linea:#d3dce4;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--papel);color:var(--tinta);font-family:Arial,Helvetica,sans-serif;line-height:1.56}
a{color:inherit;text-decoration:none}img{display:block;width:100%}button,input,textarea,select{font:inherit}

.cabecera{position:sticky;top:0;z-index:80;display:grid;grid-template-columns:auto 1fr auto;gap:1rem;align-items:center;padding:.85rem 1.2rem;background:#ffffffef;backdrop-filter:blur(14px);border-bottom:1px solid var(--linea)}
.marca{font-weight:900;color:var(--azul);letter-spacing:.04em}.nav{display:flex;justify-content:center;gap:.4rem;flex-wrap:wrap}.nav a{font-size:.73rem;padding:.58rem .72rem;border-radius:999px}.nav a:hover,.nav a.activo{background:var(--azul);color:#fff}.estado{font-size:.68rem;color:var(--suave)}
.portada{min-height:82vh;display:grid;grid-template-columns:.95fr 1.05fr;gap:4vw;align-items:center;padding:6vw 5vw}
.etiqueta{font-size:.64rem;letter-spacing:.2em;font-weight:900;color:var(--azul2)}
h1,h2,h3{letter-spacing:-.04em}h1{font-size:clamp(4rem,7vw,7rem);line-height:.86;margin:.6rem 0 1.2rem}
.portada p,.seccion p{color:var(--suave);max-width:650px}.portada img{border:1px solid var(--azul);border-radius:28px}
.acciones{display:flex;gap:.6rem;flex-wrap:wrap}.boton{display:inline-flex;padding:.82rem .95rem;border:1px solid var(--azul);background:#fff;font-weight:800;cursor:pointer;border-radius:10px}.boton.principal{background:var(--azul);color:#fff}
.resumen{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid var(--linea)}.resumen article{padding:1rem 1.2rem;border-right:1px solid var(--linea)}.resumen b{display:block;font-size:1.8rem;color:var(--azul2)}.resumen span{font-size:.72rem;color:var(--suave)}

.seccion{padding:6vw 5vw}.cabecera-seccion{display:grid;grid-template-columns:.8fr 1.2fr;gap:4vw;align-items:end;margin-bottom:2rem}.cabecera-seccion h2{font-size:clamp(2.8rem,5vw,5rem);line-height:.94;margin:.3rem 0}

.ruta-etapas{display:grid;grid-template-columns:220px 1fr;gap:1.4rem}.etapas{display:grid;gap:.55rem}.etapa{border:1px solid var(--linea);background:#fff;padding:.9rem;text-align:left;border-radius:14px;cursor:pointer}.etapa.activa{background:var(--azul);color:#fff}.panel-etapa{background:#fff;border:1px solid var(--linea);padding:1.4rem;border-radius:24px}.panel-etapa strong{display:block;font-size:2rem;color:var(--azul)}.panel-etapa img{margin-top:1rem;border-radius:18px}
.progreso{height:12px;background:#e3e9ee;border-radius:999px;overflow:hidden;margin:1rem 0}.progreso span{display:block;height:100%;width:20%;background:var(--amarillo);transition:.25s}

.planificador{display:grid;grid-template-columns:.85fr 1.15fr;gap:4vw}.panel-cajas{background:#fff;border:1px solid var(--linea);padding:1.4rem;border-radius:22px}.fila-caja{display:grid;grid-template-columns:1fr auto auto;gap:.6rem;align-items:center;padding:.8rem 0;border-bottom:1px dashed var(--linea)}.fila-caja span{color:var(--suave)}.fila-caja button{width:36px;height:36px;border:1px solid var(--linea);background:#fff;border-radius:50%;cursor:pointer}.fila-caja b{min-width:28px;text-align:center;color:var(--azul)}
.total-cajas{display:flex;justify-content:space-between;align-items:end;padding-top:1rem}.total-cajas strong{font-size:2rem;color:var(--caja)}

.cotizador{display:grid;grid-template-columns:.8fr 1.2fr;gap:4vw}.panel-cotizador{background:#fff;border:1px solid var(--linea);padding:1.4rem;border-radius:22px}.grupo{margin:1rem 0}.grupo>span{display:block;font-size:.7rem;color:var(--suave);font-weight:800;margin-bottom:.5rem}.opciones{display:flex;gap:.45rem;flex-wrap:wrap}.opciones button{border:1px solid var(--linea);background:#fff;padding:.65rem .8rem;cursor:pointer}.opciones button.activo{background:var(--azul2);color:#fff}
.resultado{margin-top:1rem;padding:1rem;background:#edf4f8;border:1px solid var(--linea);border-radius:14px}.resultado strong{display:block;font-size:2rem;color:var(--azul)}.resultado p{margin-bottom:0}

.servicios{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}.servicio{background:#fff;border:1px solid var(--linea);padding:1.2rem;border-radius:18px}.servicio b{color:var(--azul2)}.servicio p{color:var(--suave)}
.cabecera-pagina{padding:7vw 5vw 3vw;background:#e4edf2;border-bottom:1px solid var(--linea)}.cabecera-pagina h1{font-size:clamp(3.7rem,7vw,7rem)}
.formulario{display:grid;gap:1rem;max-width:760px}.campo label{display:block;font-size:.7rem;font-weight:800;margin-bottom:.35rem}.campo input,.campo textarea,.campo select{width:100%;padding:.85rem;border:1px solid var(--linea);background:#fff;border-radius:10px}.estado-formulario{min-height:1.2em;color:var(--azul2);font-weight:800}
.aviso{padding:1rem;background:#fff5d6;border:1px solid #e3cd82;border-radius:14px;color:#655824}
.pie{padding:3rem 5vw;border-top:1px solid var(--linea);display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:2rem;background:#fff}.pie p,.pie a{display:block;color:var(--suave);font-size:.8rem;margin:.25rem 0}

@media(max-width:980px){.portada,.ruta-etapas,.planificador,.cotizador{grid-template-columns:1fr}.cabecera-seccion{grid-template-columns:1fr}.etapas{grid-template-columns:repeat(5,minmax(150px,1fr));overflow:auto}.servicios{grid-template-columns:1fr 1fr}}
@media(max-width:650px){.cabecera{grid-template-columns:1fr auto}.nav{grid-column:1/-1;justify-content:flex-start;overflow:auto;flex-wrap:nowrap}.nav a{white-space:nowrap}.estado{display:none}.portada,.seccion,.cabecera-pagina{padding-left:20px;padding-right:20px}.resumen,.servicios{grid-template-columns:1fr}.pie{grid-template-columns:1fr}}