/* Redux Systems — identidad: azul del logo sobre azul noche */
:root {
  --noche: #070B1A;
  --superficie: #0E1530;
  --superficie-2: #141D40;
  --borde: #25315F;
  --azul: #1B3FD1;          /* azul del logo */
  --azul-hover: #2F55F0;
  --azul-claro: #8FA4FF;    /* acentos legibles sobre fondo oscuro */
  --cian: #3FD8F5;          /* los "nodos" del logo, usar poco */
  --texto: #E9EDFB;
  --texto-suave: #A3AED0;
  --fuente: "Archivo", "Segoe UI", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--fuente);
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--texto);
  background: var(--noche);
}

img { max-width: 100%; }
a { color: var(--azul-claro); }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--cian);
  outline-offset: 3px;
}

.envoltura { width: min(1120px, 100% - 2.5rem); margin-inline: auto; }

/* Logo: el azul del logo va sobre un disco blanco para que se lea en fondo oscuro */
.logo {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: #fff;
  padding: 3px;
  display: block;
  flex-shrink: 0;
}

/* Cabecera */
.cabecera { border-bottom: 1px solid var(--borde); }
.cabecera .envoltura {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-block: 1rem;
}
.marca {
  display: flex; align-items: center; gap: 0.7rem;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--texto);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.nav { display: flex; gap: 1.75rem; flex-wrap: wrap; }
.nav a { color: var(--texto-suave); text-decoration: none; font-weight: 600; font-size: 1rem; }
.nav a:hover { color: var(--texto); }

/* Botones */
.boton {
  display: inline-block;
  padding: 0.85rem 1.5rem;
  font-weight: 700;
  font-size: 1.02rem;
  text-decoration: none;
  border-radius: 10px;
  border: 1px solid transparent;
}
.boton-principal { background: var(--azul); color: #fff; }
.boton-principal:hover { background: var(--azul-hover); }
.boton-secundario { border-color: var(--borde); color: var(--texto); }
.boton-secundario:hover { border-color: var(--azul-claro); }

/* Hero */
.hero { padding-block: 4.5rem 6rem; }
.hero .envoltura {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}
.hero h1 {
  font-weight: 800;
  font-stretch: 112%;
  font-size: clamp(2.4rem, 5.2vw, 4.1rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin: 0 0 1.5rem;
  color: #fff;
}
.hero p { max-width: 33rem; margin: 0 0 2.2rem; font-size: 1.2rem; color: var(--texto-suave); }
.acciones { display: flex; gap: 0.9rem; flex-wrap: wrap; }

/* Chat de ejemplo */
.chat {
  background: #0A1026;
  border: 1px solid var(--borde);
  border-radius: 24px;
  box-shadow: 0 0 0 8px var(--superficie), 0 30px 80px -20px rgba(27, 63, 209, 0.55);
  overflow: hidden;
  max-width: 390px;
  justify-self: end;
  width: 100%;
}
.chat-cabecera {
  background: var(--superficie);
  border-bottom: 1px solid var(--borde);
  padding: 0.9rem 1.1rem;
  display: flex; align-items: center; gap: 0.75rem;
}
.chat-avatar {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--superficie-2); color: var(--azul-claro);
  border: 1px solid var(--borde);
  display: grid; place-items: center;
  font-weight: 800; font-size: 0.85rem;
  flex-shrink: 0;
}
.chat-nombre { font-weight: 700; line-height: 1.2; color: #fff; }
.chat-estado { font-size: 0.82rem; color: var(--cian); }
.chat-cuerpo { padding: 1.1rem; display: flex; flex-direction: column; gap: 0.6rem; min-height: 340px; }
.msj {
  max-width: 85%;
  padding: 0.6rem 0.85rem 0.45rem;
  border-radius: 14px;
  font-size: 0.97rem;
  line-height: 1.4;
  opacity: 0;
  animation: aparecer 0.35s ease-out forwards;
}
.msj small { display: block; text-align: right; font-size: 0.72rem; margin-top: 0.15rem; opacity: 0.7; }
.msj-cliente { background: var(--superficie-2); color: var(--texto); align-self: flex-start; border-top-left-radius: 4px; }
.msj-bot { background: var(--azul); color: #fff; align-self: flex-end; border-top-right-radius: 4px; }
.msj:nth-child(1) { animation-delay: 0.4s; }
.msj:nth-child(2) { animation-delay: 1.5s; }
.msj:nth-child(3) { animation-delay: 3.0s; }
.msj:nth-child(4) { animation-delay: 4.1s; }
@keyframes aparecer {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .msj { animation: none; opacity: 1; }
}
.chat-nota { font-size: 0.85rem; color: var(--texto-suave); margin: 1.6rem 0 0; text-align: right; max-width: 390px; justify-self: end; }

/* Secciones */
.seccion { padding-block: 5.5rem; border-top: 1px solid var(--borde); }
.seccion h2 {
  font-weight: 800;
  font-stretch: 110%;
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
  color: #fff;
}
.intro { max-width: 40rem; margin: 0 0 3rem; color: var(--texto-suave); }

/* Preguntas que contesta */
.preguntas {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2.75rem 3.5rem;
  margin: 0;
}
.pregunta dt {
  display: inline-block;
  background: var(--superficie-2);
  border: 1px solid var(--borde);
  border-radius: 14px 14px 14px 4px;
  padding: 0.5rem 0.95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.85rem;
}
.pregunta dd { margin: 0; max-width: 32rem; color: var(--texto-suave); }

/* Pasos: línea con nodos, como el circuito del logo */
.pasos-fondo { background: var(--superficie); }
.pasos {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2rem;
  counter-reset: paso;
  position: relative;
}
.pasos li { counter-increment: paso; position: relative; padding-top: 2.4rem; }
.pasos li::before {
  content: "";
  position: absolute; top: 7px; left: 0; right: -2rem;
  height: 2px; background: var(--borde);
}
.pasos li:last-child::before { right: 0; }
.pasos li::after {
  content: "";
  position: absolute; top: 0; left: 0;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--superficie);
  border: 3px solid var(--cian);
}
.pasos h3 { margin: 0 0 0.5rem; font-size: 1.2rem; color: #fff; }
.pasos h3::before { content: counter(paso) ". "; color: var(--azul-claro); }
.pasos p { margin: 0; color: var(--texto-suave); font-size: 1.02rem; }

/* Para quién */
.rubros { font-size: clamp(1.3rem, 2.4vw, 1.7rem); line-height: 1.5; max-width: 50rem; margin: 0; color: var(--texto); }

/* FAQ */
.faq { max-width: 46rem; }
.faq details { border-bottom: 1px solid var(--borde); }
.faq details:first-of-type { border-top: 1px solid var(--borde); }
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 1.25rem 2.5rem 1.25rem 0;
  font-weight: 700;
  font-size: 1.12rem;
  color: #fff;
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute; right: 0.3rem; top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem; font-weight: 400; color: var(--cian);
}
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0 0 1.3rem; max-width: 40rem; color: var(--texto-suave); }

/* Contacto */
.contacto { background: var(--azul); border-top: none; }
.contacto h2 { color: #fff; }
.contacto p { max-width: 36rem; font-size: 1.2rem; color: #DCE3FF; }
.contacto .boton-principal { background: #fff; color: var(--azul); }
.contacto .boton-principal:hover { background: #DCE3FF; }
.contacto a.correo { color: #fff; font-weight: 700; }

/* Pie */
.pie { border-top: 1px solid var(--borde); color: var(--texto-suave); padding-block: 2.5rem; font-size: 0.95rem; }
.pie .envoltura { display: flex; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; }
.pie a { color: var(--texto); }
.pie nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }

/* Páginas legales */
.legal { padding-block: 3.5rem 5rem; }
.legal .envoltura { max-width: 46rem; }
.legal h1 {
  font-weight: 800; font-stretch: 110%;
  font-size: clamp(2rem, 4.5vw, 3rem); line-height: 1.05; letter-spacing: -0.03em;
  color: #fff; margin: 0 0 0.5rem;
}
.legal .fecha { color: var(--texto-suave); margin: 0 0 2.5rem; }
.legal h2 { font-size: 1.3rem; margin: 2.5rem 0 0.6rem; color: #fff; }
.legal p, .legal li { max-width: 42rem; color: var(--texto-suave); }
.legal strong { color: var(--texto); }
.legal ul, .legal ol { padding-left: 1.3rem; }
.pendiente { background: #3A3200; color: #FFE680; padding: 0 0.25rem; border-radius: 3px; }

/* Responsive */
@media (max-width: 900px) {
  .hero .envoltura { grid-template-columns: 1fr; gap: 3rem; }
  .chat, .chat-nota { justify-self: start; }
  .chat-nota { text-align: left; }
  .pasos { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 3rem; }
  .pasos li::before { right: 0; }
}
@media (max-width: 620px) {
  .preguntas, .pasos { grid-template-columns: 1fr; }
  .seccion { padding-block: 3.75rem; }
  .hero { padding-block: 3rem 4rem; }
  .cabecera .envoltura { flex-direction: column; align-items: flex-start; gap: 0.6rem; }
  .nav { gap: 1.2rem; }
}