:root{--azul:#1756a9;--oscuro:#172b4d;--gris:#f4f7fb;--texto:#596579}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#fff;color:var(--oscuro);line-height:1.6}a{text-decoration:none;color:inherit}.contenedor{max-width:1180px;margin:auto;padding:0 24px}.encabezado{background:#fff;border-bottom:1px solid #e9edf2;padding:18px 0}.navegacion{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}.logo{font-size:22px;font-weight:700;color:var(--azul)}.menu{display:flex;gap:22px;flex-wrap:wrap}.menu a:hover{color:var(--azul)}.hero{padding:100px 0;background:var(--gris)}.hero h1{font-size:clamp(34px,5vw,58px);line-height:1.15;max-width:750px}.hero p{max-width:650px;color:var(--texto);font-size:19px}.boton{display:inline-block;background:var(--azul);color:white;padding:13px 25px;border-radius:7px;font-weight:600;margin:12px 12px 0 0}.boton.secundario{background:white;color:var(--azul);border:1px solid var(--azul)}.seccion{padding:75px 0}.seccion h2{font-size:34px}.tarjetas{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.tarjeta{padding:30px;border:1px solid #e9edf2;border-radius:12px;background:white}.tarjeta h3{color:var(--azul)}.tarjeta p{color:var(--texto)}.pie{background:var(--oscuro);color:white;padding:35px 0;text-align:center}@media(max-width:768px){.hero{padding:65px 0}.tarjetas{grid-template-columns:1fr}.menu{gap:12px}.seccion{padding:50px 0}}

/* Mejoras visuales corporativas */
.encabezado{
  position:sticky;
  top:0;
  z-index:100;
  box-shadow:0 2px 12px rgba(23,43,77,.05);
}
.logo{letter-spacing:-.5px}
.hero{
  background:linear-gradient(135deg,#f4f7fb 0%,#eaf2ff 100%);
}
.boton{
  transition:background .25s,transform .25s,box-shadow .25s;
}
.boton:hover{
  background:#10458e;
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(23,86,169,.18);
}
.boton.secundario:hover{
  background:#eaf2ff;
}
.tarjeta{
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.tarjeta:hover{
  transform:translateY(-5px);
  box-shadow:0 12px 30px rgba(23,43,77,.09);
  border-color:#c8d9ee;
}
.seccion h2{letter-spacing:-.7px}
.menu a{transition:color .2s}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    scroll-behavior:auto!important;
    transition:none!important;
  }
}

/* Planes y precios */
.planes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:35px}
.plan{background:#fff;border:1px solid #e0e7ef;border-radius:14px;padding:32px;display:flex;flex-direction:column}
.plan.destacado{border:2px solid #1756a9;box-shadow:0 12px 30px rgba(23,86,169,.10)}
.plan h3{font-size:23px;color:#172b4d;margin:0 0 12px}
.plan .precio{font-size:32px;font-weight:700;color:#1756a9;margin:12px 0}
.plan ul{padding-left:20px;color:#596579;flex:1}
.plan li{margin-bottom:12px}
.plan .boton{text-align:center}
@media(max-width:850px){.planes-grid{grid-template-columns:1fr}}

/* Formulario de cotización */
.formulario-cotizacion{
  max-width:850px;
  margin:30px auto;
  padding:35px;
  background:#fff;
  border:1px solid #e0e7ef;
  border-radius:14px;
  box-shadow:0 8px 30px rgba(23,43,77,.06);
}
.form-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.campo{display:flex;flex-direction:column;gap:7px}
.campo label{font-weight:600;color:#172b4d}
.campo input,.campo select,.campo textarea{
  width:100%;
  padding:13px;
  border:1px solid #cbd5e1;
  border-radius:7px;
  font:inherit;
  background:#fff;
  color:#172b4d;
}
.campo input:focus,.campo select:focus,.campo textarea:focus{
  outline:2px solid #1756a9;
  outline-offset:1px;
}
.campo-completo{grid-column:1/-1}
.formulario-cotizacion button{
  border:0;
  cursor:pointer;
  font:inherit;
}
@media(max-width:650px){
  .form-grid{grid-template-columns:1fr}
  .formulario-cotizacion{padding:22px}
}