:root {
  --primario: #0b3d91;
  --primario-oscuro: #072a66;
  --acento: #e63946;
  --wa: #25d366;
  --texto: #1d2433;
  --suave: #5b6476;
  --fondo: #f5f7fb;
  --blanco: #ffffff;
  --radio: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--texto);
  background: var(--fondo);
  line-height: 1.6;
}

.contenedor { width: min(1100px, 100% - 32px); margin-inline: auto; }

h1, h2, h3 { line-height: 1.2; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 24px; }

/* Botones */
.btn {
  display: inline-block;
  background: var(--acento);
  color: var(--blanco);
  padding: 14px 26px;
  border-radius: 999px;
  border: none;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: transform .15s, opacity .15s;
}
.btn:hover { transform: translateY(-2px); }
.btn:disabled { opacity: .6; cursor: wait; }
.btn--small { padding: 8px 18px; font-size: .9rem; }
.btn--wa { background: var(--wa); }
.btn--full { width: 100%; }

/* Topbar */
.topbar { background: var(--blanco); box-shadow: 0 1px 6px rgba(0,0,0,.06); position: sticky; top: 0; z-index: 10; }
.topbar__inner { display: flex; justify-content: space-between; align-items: center; padding: 14px 0; gap: 12px; }
.logo { font-size: 1.3rem; color: var(--primario); }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--primario), var(--primario-oscuro));
  color: var(--blanco);
  padding: 80px 0 90px;
}
.etiqueta {
  display: inline-block;
  background: rgba(255,255,255,.15);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: .85rem;
  margin-bottom: 18px;
}
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); max-width: 720px; margin-bottom: 16px; }
.hero p { max-width: 600px; font-size: 1.1rem; opacity: .9; margin-bottom: 30px; }
.hero__acciones { display: flex; flex-wrap: wrap; gap: 12px; }

/* Beneficios */
.beneficios { padding: 70px 0; text-align: center; }
.tarjetas { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.tarjeta {
  background: var(--blanco);
  padding: 30px 24px;
  border-radius: var(--radio);
  box-shadow: 0 4px 16px rgba(11,61,145,.08);
}
.tarjeta__icono {
  width: 56px; height: 56px;
  margin: 0 auto 16px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: #e8eefb;
  color: var(--primario);
  font-size: 1.5rem; font-weight: 800;
}
.tarjeta h3 { margin-bottom: 8px; }
.tarjeta p { color: var(--suave); }

/* Pasos */
.pasos { background: var(--blanco); padding: 70px 0; }
.pasos h2 { text-align: center; }
.pasos__lista { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.pasos__lista li { display: flex; gap: 16px; align-items: flex-start; }
.pasos__lista span {
  flex-shrink: 0;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--acento);
  color: var(--blanco);
  font-weight: 800;
}
.pasos__lista p { color: var(--suave); }

/* Formulario */
.formulario {
  padding: 70px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.formulario__texto p { color: var(--suave); margin-bottom: 20px; }
.lista-check { list-style: none; }
.lista-check li::before { content: "✓ "; color: var(--wa); font-weight: 800; }
.lista-check li { margin-bottom: 8px; }

.form {
  background: var(--blanco);
  padding: 30px;
  border-radius: var(--radio);
  box-shadow: 0 4px 20px rgba(11,61,145,.1);
  display: grid;
  gap: 16px;
}
.form label { display: grid; gap: 6px; font-weight: 600; font-size: .95rem; }
.form input, .form select, .form textarea {
  font: inherit;
  padding: 12px 14px;
  border: 1px solid #d3d9e6;
  border-radius: 8px;
  background: #fbfcfe;
}
.form input:focus, .form select:focus, .form textarea:focus {
  outline: 2px solid var(--primario);
  border-color: transparent;
}
.form .check { display: flex; gap: 10px; font-weight: 400; font-size: .85rem; color: var(--suave); align-items: flex-start; }
.form .check input { margin-top: 4px; }
.form__estado { font-size: .95rem; min-height: 1.4em; text-align: center; }
.form__estado.ok { color: #1a7f37; }
.form__estado.error { color: var(--acento); }

/* Footer */
.footer { background: var(--primario-oscuro); color: #c9d4ea; padding: 36px 0; text-align: center; font-size: .9rem; }
.footer p { margin-bottom: 6px; }
.footer__legal { opacity: .7; margin-top: 12px; }

@media (max-width: 760px) {
  .formulario { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 64px; }
  .btn--small { display: none; }
}