/* Zuxon · web. Paleta de la identidad corporativa (marca/ZUXON_Identidad_Corporativa.pdf) */

:root {
  --acero: #263747;     /* azul acero: principal */
  --cobre: #b87345;     /* cobre: acento */
  --plata: #c5cdd2;     /* plata: líneas y detalles */
  --marfil: #f1e9da;    /* marfil: fondos cálidos */
  --grafito: #18232c;   /* grafito: texto y fondos oscuros */

  --paper: #f8f4ec;     /* marfil aclarado para el fondo general */
  --ink: var(--grafito);
  --ink-soft: #46535e;
  --muted: #6c7881;
  --line: #ddd3c2;
  --white: #ffffff;
  --radius: 16px;
  --display: "Sora", "Segoe UI", system-ui, sans-serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: inherit; }

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.narrow { max-width: 780px; }

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--acero);
}

h1 { font-size: clamp(2.4rem, 5.4vw, 4rem); line-height: 1.08; }
h1 em { font-style: normal; color: var(--cobre); }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); line-height: 1.15; max-width: 22ch; }
h3 { font-size: 1.2rem; line-height: 1.3; }

.eyebrow {
  font-family: var(--display);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cobre);
  font-weight: 600;
  margin: 0 0 16px;
}

/* Botones */
.btn {
  display: inline-block;
  background: var(--acero);
  color: var(--marfil);
  text-decoration: none;
  font-family: var(--display);
  font-weight: 500;
  font-size: 0.96rem;
  padding: 14px 26px;
  border-radius: 999px;
  border: 1px solid var(--acero);
  transition: transform .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn:hover { background: var(--grafito); transform: translateY(-1px); }
.btn-small { padding: 9px 18px; font-size: 0.88rem; }
.btn-ghost { background: transparent; color: var(--acero); border-color: var(--plata); }
.btn-ghost:hover { background: var(--marfil); }
.btn-copper { background: var(--cobre); border-color: var(--cobre); color: var(--white); }
.btn-copper:hover { background: #a3643a; }

/* Cabecera */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(248, 244, 236, 0.9);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; }
.brand img { width: 130px; height: auto; }
.nav { display: flex; gap: 28px; }
.nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.95rem;
}
.nav a:hover { color: var(--acero); }

/* Portada */
.hero { padding: 88px 0 96px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: center;
}
.lead {
  font-size: 1.12rem;
  color: var(--ink-soft);
  max-width: 34em;
  margin: 24px 0 32px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-points {
  list-style: none;
  padding: 0;
  margin: 36px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  color: var(--muted);
  font-size: 0.92rem;
}
.hero-points li::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cobre);
  margin-right: 9px;
  vertical-align: middle;
}

/* Tarjeta de llamada */
.call-card {
  margin: 0;
  background: linear-gradient(160deg, var(--acero) 0%, var(--grafito) 100%);
  color: var(--marfil);
  border-radius: 22px;
  padding: 22px;
  box-shadow: 0 30px 60px -30px rgba(24, 35, 44, 0.6);
  border: 1px solid rgba(197, 205, 210, 0.18);
}
.call-top {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--plata);
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(197, 205, 210, 0.14);
}
.call-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #6fcf97;
  box-shadow: 0 0 0 4px rgba(111, 207, 151, 0.18);
}
.call-tag {
  margin-left: auto;
  font-size: 0.75rem;
  border: 1px solid rgba(184, 115, 69, 0.6);
  color: #e3b48f;
  padding: 3px 10px;
  border-radius: 999px;
}
.call-body { display: flex; flex-direction: column; gap: 12px; padding: 18px 0; }
.msg {
  margin: 0;
  padding: 12px 14px;
  border-radius: 14px;
  font-size: 0.95rem;
  line-height: 1.45;
  max-width: 88%;
}
.msg .who {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 3px;
  opacity: 0.6;
}
.msg-ai { background: rgba(197, 205, 210, 0.1); align-self: flex-start; }
.msg-user { background: var(--marfil); color: var(--grafito); align-self: flex-end; }
.call-result {
  display: flex;
  gap: 12px;
  align-items: center;
  background: rgba(184, 115, 69, 0.16);
  border: 1px solid rgba(184, 115, 69, 0.45);
  border-radius: 14px;
  padding: 12px 14px;
}
.call-result strong { display: block; color: var(--white); font-weight: 600; font-size: 0.95rem; }
.call-result span { font-size: 0.85rem; color: var(--plata); }
.check {
  flex: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--cobre);
  color: var(--white);
  display: grid;
  place-items: center;
  font-weight: 700;
}
.call-card figcaption {
  margin-top: 12px;
  font-size: 0.75rem;
  color: #8e9aa3;
  text-align: right;
}

/* Franja */
.band { background: var(--acero); color: var(--marfil); }
.band-inner { padding: 60px 24px; }
.band p {
  margin: 0 auto;
  max-width: 860px;
  text-align: center;
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.25rem, 2.3vw, 1.7rem);
  line-height: 1.45;
  letter-spacing: -0.01em;
}
.band strong { color: #e3b48f; font-weight: 600; }

/* Secciones */
.section { padding: 104px 0; }
.section-alt { background: var(--marfil); }

/* Pasos */
.steps {
  list-style: none;
  padding: 0;
  margin: 56px 0 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.steps li { border-top: 2px solid var(--plata); padding-top: 22px; }
.step-n {
  font-family: var(--display);
  color: var(--cobre);
  font-weight: 600;
  font-size: 1rem;
}
.steps h3 { margin: 8px 0 4px; font-size: 1.35rem; }
.step-line { margin: 0 0 12px; color: var(--cobre); font-weight: 500; font-size: 0.95rem; }
.steps p { margin: 0; color: var(--ink-soft); font-size: 0.96rem; }
.steps .step-line { color: var(--cobre); margin-bottom: 12px; }

/* Tarjetas de sectores */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
}
.card p { color: var(--ink-soft); font-size: 0.97rem; margin: 14px 0 18px; }
.card ul {
  list-style: none;
  padding: 18px 0 0;
  margin: 0;
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
  color: var(--ink-soft);
  display: grid;
  gap: 8px;
}
.card li::before { content: "— "; color: var(--cobre); }

/* Ventajas */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 48px;
  margin-top: 56px;
}
.feature { padding-left: 18px; border-left: 2px solid var(--cobre); }
.feature h3 { font-size: 1.12rem; margin-bottom: 8px; }
.feature p { margin: 0; color: var(--ink-soft); font-size: 0.96rem; }

/* Preguntas */
.faq { margin-top: 40px; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); padding: 20px 0; }
.faq summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--display);
  font-weight: 500;
  color: var(--acero);
  font-size: 1.1rem;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--cobre); font-size: 1.4rem; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 12px 0 0; color: var(--ink-soft); }

/* Llamada a la acción */
.cta {
  background: linear-gradient(160deg, var(--acero) 0%, var(--grafito) 100%);
  color: var(--marfil);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-mark {
  position: absolute;
  right: -40px;
  bottom: -50px;
  width: 360px;
  opacity: 0.07;
  pointer-events: none;
}
.cta-inner { display: flex; flex-direction: column; align-items: center; position: relative; }
.cta h2 { color: var(--marfil); max-width: 22ch; }
.cta p { color: var(--plata); max-width: 36em; margin: 18px 0 32px; }
.cta .cta-mail { margin: 22px 0 0; font-size: 0.92rem; }
.cta-mail a { color: #e3b48f; }

/* Pie */
.site-footer { border-top: 1px solid var(--line); padding: 32px 0; font-size: 0.88rem; color: var(--muted); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-inner p { margin: 0; }
.site-footer .brand img { width: 104px; }

/* Tableta */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .call-card { max-width: 520px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: 1fr; }
  .features { grid-template-columns: repeat(2, 1fr); }
  .nav { display: none; }
}

/* Móvil */
@media (max-width: 600px) {
  body { font-size: 16px; }
  .container { padding: 0 16px; }
  .brand img { width: 112px; }
  .hero { padding: 56px 0 64px; }
  .section { padding: 72px 0; }
  .band-inner { padding: 48px 16px; }
  .steps, .features { grid-template-columns: 1fr; gap: 28px; }
  .msg { max-width: 94%; }
  .cta-mark { width: 240px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

/* ---------- Página de demo y textos legales ---------- */
.form-page { padding: 72px 0 104px; }
.form-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 64px;
  align-items: start;
}
.form-intro { position: sticky; top: 104px; }
.form-title { font-size: clamp(2rem, 4vw, 2.9rem); line-height: 1.12; }
.form-steps { list-style: none; padding: 0; margin: 28px 0; display: grid; gap: 10px; color: var(--ink-soft); }
.form-steps strong { color: var(--cobre); font-family: var(--display); margin-right: 6px; }
.form-note { font-size: 0.9rem; color: var(--muted); }

.demo-form {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 36px;
  box-shadow: 0 24px 48px -32px rgba(24, 35, 44, 0.35);
}
.demo-form fieldset { border: 0; padding: 0; margin: 0 0 32px; }
.demo-form legend {
  font-family: var(--display);
  font-weight: 600;
  color: var(--acero);
  font-size: 1.15rem;
  padding: 0 0 6px;
  margin-bottom: 18px;
  border-bottom: 2px solid var(--marfil);
  width: 100%;
}
.demo-form label { display: block; font-size: 0.9rem; font-weight: 500; color: var(--ink); margin-bottom: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.demo-form input[type="text"],
.demo-form input[type="email"],
.demo-form input[type="tel"],
.demo-form select,
.demo-form textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 12px 14px;
  font: inherit;
  font-weight: 400;
  font-size: 0.97rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.demo-form textarea { resize: vertical; min-height: 110px; }
.demo-form input:focus, .demo-form select:focus, .demo-form textarea:focus {
  outline: none;
  border-color: var(--cobre);
  box-shadow: 0 0 0 3px rgba(184, 115, 69, 0.18);
  background: var(--white);
}
.demo-form .invalid { border-color: #c0392b !important; box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.12); }
.choice.invalid { color: #c0392b; }
.choice-group { margin: 6px 0 20px; }
.choice-title { margin: 0 0 8px; font-size: 0.9rem; font-weight: 500; }
.demo-form .choice {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-weight: 400;
  color: var(--ink-soft);
  margin-bottom: 8px;
  cursor: pointer;
}
.choice input { margin-top: 4px; accent-color: var(--cobre); width: 17px; height: 17px; flex: none; }
.consent { font-size: 0.9rem; margin: 4px 0 20px; }
.consent a { color: var(--cobre); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-error {
  background: #fbeceb;
  color: #9b2c22;
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 0.92rem;
  margin: 0 0 16px;
}
.btn-submit { width: 100%; padding: 16px; font-size: 1rem; cursor: pointer; }
.btn-submit:disabled { opacity: 0.6; cursor: wait; }
.form-required { font-size: 0.82rem; color: var(--muted); margin: 12px 0 0; text-align: center; }

.form-success {
  grid-column: 1 / -1;
  max-width: 560px;
  margin: 40px auto;
  text-align: center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 48px 36px;
  outline: none;
}
.form-success img { margin: 0 auto 20px; width: 72px; }
.form-success h2 { margin: 0 auto 12px; }
.form-success p { color: var(--ink-soft); margin: 0 0 28px; }

.legal h2 { font-size: 1.25rem; margin: 36px 0 8px; max-width: none; }
.legal p { color: var(--ink-soft); }
.legal a, .site-footer a { color: inherit; }

@media (max-width: 960px) {
  .form-layout { grid-template-columns: 1fr; gap: 32px; }
  .form-intro { position: static; }
}
@media (max-width: 600px) {
  .form-page { padding: 40px 0 72px; }
  .demo-form { padding: 24px 18px; border-radius: 16px; }
  .grid-2 { grid-template-columns: 1fr; }
}