/* ==========================================================================
   ASCENDIA — hoja de estilos única
   Mobile-first. Sin frameworks. Variables en :root.
   ========================================================================== */

:root {
  /* Paleta */
  --bg:            #F5F1EB;   /* hormigón claro */
  --bg-alt:        #EFEAE1;   /* franja alterna */
  --ink:           #1A1A1A;   /* texto / base oscura */
  --accent:        #C1502E;   /* terracota — solo CTAs y elementos clave */
  --accent-dark:   #A6421F;
  --steel:         #4A5859;   /* gris azulado */
  --steel-soft:    #6B7778;
  --line:          #DCD4C8;
  --surface:       #FFFDFA;
  --on-dark:       #EDE8E0;
  --on-dark-soft:  #A9B2B2;

  /* Tipografía */
  --font-head: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Medidas */
  --wrap: 1140px;
  --radius: 4px;
  --radius-lg: 8px;
  --gap: 1.5rem;
  --section-y: clamp(3.5rem, 8vw, 6.5rem);
  --shadow: 0 1px 2px rgba(26, 26, 26, .05), 0 8px 24px rgba(26, 26, 26, .06);
}

/* ---------- Reset ligero ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 84px; /* la cabecera fija no debe tapar el destino del ancla */
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
h1, h2, h3 { font-family: var(--font-head); line-height: 1.15; letter-spacing: -.015em; margin: 0 0 .6em; font-weight: 700; }
h1 { font-size: clamp(2.1rem, 6vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); }
h3 { font-size: 1.15rem; font-weight: 600; }
p  { margin: 0 0 1rem; }
a  { color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink); color: var(--on-dark);
  padding: .75rem 1rem; font-weight: 600;
}
.skip-link:focus { left: .5rem; top: .5rem; }

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 1.25rem; }
.wrap-narrow { max-width: 760px; }
.section { padding-block: var(--section-y); }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--ink); color: var(--on-dark); }
.section-dark h2 { color: #fff; }

.section-head { max-width: 640px; margin-bottom: clamp(2rem, 5vw, 3rem); }
.section-intro { color: var(--steel); font-size: 1.05rem; margin-bottom: 0; }
.section-dark .section-intro { color: var(--on-dark-soft); }

.eyebrow {
  font-family: var(--font-head);
  font-size: .8rem; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent); margin-bottom: .75rem;
}
.accent { color: var(--accent); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .7rem 1.25rem;
  font-family: var(--font-head); font-weight: 600; font-size: .95rem;
  text-decoration: none; border: 1.5px solid transparent; border-radius: var(--radius);
  cursor: pointer;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease, transform .1s ease;
}
.btn:active { transform: translateY(1px); }
.btn-lg { padding: .95rem 1.6rem; font-size: 1rem; }
.btn-sm { padding: .5rem .9rem; font-size: .875rem; }
.btn-block { width: 100%; }

.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); }

.btn-outline { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--bg); }

.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink); }

.icon-wa { width: 1.15em; height: 1.15em; flex: none; }

/* ---------- Cabecera ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(245, 241, 235, .92);
  backdrop-filter: saturate(1.2) blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.site-header.is-stuck { border-bottom-color: var(--line); box-shadow: 0 2px 12px rgba(26,26,26,.05); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 68px; }

.logo { display: inline-flex; align-items: center; gap: .55rem; text-decoration: none; color: var(--ink); }
.logo-mark { width: 28px; height: 28px; color: var(--accent); flex: none; }
.logo-text { font-family: var(--font-head); font-weight: 700; letter-spacing: .1em; font-size: 1.05rem; }

.nav-toggle {
  display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; padding: 0 10px;
  background: none; border: 1px solid var(--line); border-radius: var(--radius); cursor: pointer;
}
.nav-toggle-bar { display: block; height: 2px; background: var(--ink); transition: transform .2s ease, opacity .2s ease; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-nav {
  display: none;
  position: absolute; left: 0; right: 0; top: 100%;
  background: var(--bg); border-bottom: 1px solid var(--line);
  padding: 1rem 1.25rem 1.5rem;
}
.site-nav.is-open { display: block; }
.nav-list { display: flex; flex-direction: column; gap: .25rem; margin-bottom: 1rem; }
.nav-list a {
  display: block; padding: .6rem 0; text-decoration: none;
  font-family: var(--font-head); font-weight: 500; border-bottom: 1px solid var(--line);
}
.nav-list a:hover { color: var(--accent); }

/* ---------- Hero ---------- */
.hero { padding-block: clamp(3rem, 9vw, 5.5rem) clamp(3.5rem, 8vw, 6rem); }
.hero-grid { display: grid; gap: clamp(2.5rem, 6vw, 4rem); }
.hero h1 { margin-bottom: .5em; }
.lead { font-size: clamp(1.05rem, 2.2vw, 1.2rem); color: var(--steel); max-width: 52ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin: 1.75rem 0 1.5rem; }
.hero-actions .btn { flex: 1 1 auto; min-width: 200px; }
.hero-trust {
  font-size: .9rem; color: var(--steel-soft);
  border-left: 3px solid var(--accent); padding-left: .85rem; margin: 0; max-width: 46ch;
}

/* Mock de solicitud recibida */
.hero-visual { position: relative; }
.mock-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); padding: 1.25rem; max-width: 420px; margin-inline: auto;
}
.mock-head { display: flex; align-items: center; gap: .6rem; padding-bottom: .85rem; border-bottom: 1px solid var(--line); }
.mock-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); flex: none; box-shadow: 0 0 0 4px rgba(193,80,46,.15); }
.mock-title { font-family: var(--font-head); font-weight: 600; font-size: .9rem; }
.mock-rows { margin: 0; padding: .85rem 0 0; }
.mock-row { display: flex; justify-content: space-between; gap: 1rem; padding: .45rem 0; border-bottom: 1px dashed var(--line); }
.mock-row dt { color: var(--steel-soft); font-size: .85rem; }
.mock-row dd { margin: 0; font-weight: 600; font-size: .9rem; text-align: right; }
.mock-foot { padding-top: .85rem; font-size: .78rem; color: var(--steel-soft); }
.mock-stat {
  margin: 1rem auto 0; max-width: 420px;
  background: var(--steel); color: #fff; border-radius: var(--radius-lg);
  padding: 1rem 1.15rem; display: flex; align-items: baseline; gap: .7rem; flex-wrap: wrap;
}
.mock-stat strong { font-family: var(--font-head); font-size: 1.35rem; }
.mock-stat span { font-size: .85rem; color: rgba(255,255,255,.82); flex: 1 1 60%; }

/* ---------- Tarjetas de servicio ---------- */
.cards { display: grid; gap: 1.25rem; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 1.5rem;
}
.card-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; margin-bottom: 1rem;
  background: rgba(193, 80, 46, .09); color: var(--accent); border-radius: var(--radius);
}
.card-icon svg { width: 24px; height: 24px; }
.card p { color: var(--steel); font-size: .95rem; margin-bottom: 0; }

/* ---------- Demos ---------- */
.demos { display: grid; gap: 1.5rem; }
.demo {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; display: flex; flex-direction: column;
}
.demo-media { display: block; background: var(--bg-alt); border-bottom: 1px solid var(--line); }
.demo-media img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.demo-body { padding: 1.4rem; display: flex; flex-direction: column; flex: 1; }
.demo-body p { color: var(--steel); font-size: .95rem; flex: 1; }
.demo-body .btn { align-self: flex-start; margin-top: .5rem; }

/* ---------- Pasos ---------- */
.steps { display: grid; gap: 1.75rem; counter-reset: step; }
.step { position: relative; padding-top: 1.25rem; border-top: 2px solid var(--ink); }
.step-num {
  display: block; font-family: var(--font-head); font-weight: 700;
  font-size: 1.1rem; color: var(--accent); margin-bottom: .5rem;
}
.step h3 { margin-bottom: .4em; }
.step p { color: var(--steel); font-size: .95rem; margin-bottom: 0; }

/* ---------- Precios ---------- */
.pricing { display: grid; gap: 1.25rem; align-items: start; }
.plan {
  position: relative; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem; display: flex; flex-direction: column;
}
.plan-featured { border: 2px solid var(--accent); box-shadow: var(--shadow); }
.plan-badge {
  position: absolute; top: -.8rem; left: 1.5rem;
  background: var(--accent); color: #fff;
  font-family: var(--font-head); font-size: .72rem; font-weight: 600;
  letter-spacing: .08em; text-transform: uppercase;
  padding: .3rem .7rem; border-radius: 2px;
}
.plan-name { font-size: 1.35rem; margin-bottom: .3em; }
.plan-for { color: var(--steel); font-size: .9rem; min-height: 2.8em; }
.plan-price { display: flex; align-items: baseline; gap: .5rem; flex-wrap: wrap; margin: .75rem 0 1.25rem; padding-bottom: 1.25rem; border-bottom: 1px solid var(--line); }
.price-value { font-family: var(--font-head); font-weight: 700; font-size: 2rem; letter-spacing: -.02em; }
.price-note { font-size: .85rem; color: var(--steel-soft); }
.plan-feats { display: grid; gap: .65rem; margin-bottom: 1.75rem; flex: 1; }
.plan-feats li { position: relative; padding-left: 1.6rem; font-size: .93rem; color: var(--steel); }
.plan-feats li::before {
  content: ""; position: absolute; left: 0; top: .5em;
  width: 10px; height: 6px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}
.pricing-note { margin: 2rem 0 0; font-size: .88rem; color: var(--steel-soft); max-width: 68ch; }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.15rem 0; cursor: pointer; list-style: none;
  font-family: var(--font-head); font-weight: 600; font-size: 1.02rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: ""; flex: none; width: 12px; height: 12px;
  border-right: 2px solid var(--accent); border-bottom: 2px solid var(--accent);
  transform: rotate(45deg) translate(-2px, -2px); transition: transform .2s ease;
}
.faq-item[open] summary::after { transform: rotate(-135deg) translate(-4px, -4px); }
.faq-item summary:hover { color: var(--accent); }
.faq-answer { padding-bottom: 1.15rem; }
.faq-answer p { color: var(--steel); margin: 0; max-width: 68ch; }

/* ---------- Contacto ---------- */
.contact-grid { display: grid; gap: clamp(2rem, 5vw, 3.5rem); }
.contact-direct { margin-top: 1.75rem; }
.contact-direct .btn { width: 100%; max-width: 340px; }
.contact-hint { margin: .75rem 0 .25rem; font-size: .88rem; color: var(--on-dark-soft); }
.contact-alt { font-size: .95rem; color: var(--on-dark-soft); margin: 0; }
.contact-alt a { color: #fff; }

.contact-form {
  background: var(--surface); color: var(--ink);
  border-radius: var(--radius-lg); padding: clamp(1.25rem, 4vw, 2rem);
  display: grid; gap: 1rem;
}
.field { display: grid; gap: .35rem; }
.field-row { display: grid; gap: 1rem; }
.field label, .check span { font-size: .88rem; font-weight: 600; }
.req { color: var(--accent); }
.field input, .field select, .field textarea {
  width: 100%; padding: .7rem .8rem;
  background: var(--bg); border: 1.5px solid var(--line); border-radius: var(--radius);
  font-size: 1rem; transition: border-color .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); outline-offset: 1px; }
.field textarea { resize: vertical; min-height: 110px; }
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath fill='%234A5859' d='M6 8 0 1.4 1.4 0 6 4.6 10.6 0 12 1.4z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right .85rem center; background-size: 11px; padding-right: 2.2rem; }
.check { display: flex; align-items: flex-start; gap: .6rem; }
.check input { margin-top: .28rem; width: 1.05rem; height: 1.05rem; accent-color: var(--accent); flex: none; }
.check span { font-weight: 400; font-size: .85rem; color: var(--steel); }
.gotcha { position: absolute !important; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-status { margin: 0; font-size: .9rem; min-height: 1.2em; }
.form-status.is-ok { color: #2E6B45; font-weight: 600; }
.form-status.is-error { color: var(--accent-dark); font-weight: 600; }

/* ---------- Pie ---------- */
.site-footer { background: var(--ink); color: var(--on-dark-soft); padding-top: clamp(2.5rem, 6vw, 4rem); }
.site-footer a { color: var(--on-dark); text-decoration: none; }
.site-footer a:hover { color: var(--accent); }
.footer-grid { display: grid; gap: 2rem; padding-bottom: 2.5rem; }
.footer-brand .logo { color: #fff; margin-bottom: .85rem; }
.footer-brand p { font-size: .92rem; max-width: 34ch; margin: 0; }
.footer-title { font-family: var(--font-head); font-size: .8rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: #fff; margin: 0 0 .85rem; }
.footer-nav ul, .footer-contact ul { display: grid; gap: .5rem; font-size: .92rem; }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; justify-content: space-between;
  border-top: 1px solid rgba(255,255,255,.12); padding-block: 1.25rem; font-size: .84rem;
}
.footer-bottom p { margin: 0; }

/* ==========================================================================
   Breakpoints
   ========================================================================== */
@media (min-width: 600px) {
  .cards-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .field-row { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 860px) {
  .nav-toggle { display: none; }
  .site-nav {
    display: flex !important; align-items: center; gap: 1.75rem;
    position: static; background: none; border: 0; padding: 0;
  }
  .nav-list { flex-direction: row; gap: 1.5rem; margin: 0; }
  .nav-list a { padding: 0; border: 0; font-size: .93rem; }

  .hero-grid { grid-template-columns: 1.15fr .85fr; align-items: center; }
  .hero-actions .btn { flex: 0 0 auto; min-width: 0; }

  .demos { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(4, 1fr); }
  .pricing { grid-template-columns: repeat(3, 1fr); }
  .contact-grid { grid-template-columns: 1fr 1fr; align-items: start; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}

@media (min-width: 1024px) {
  .cards-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ==========================================================================
   PÁGINAS LEGALES (aviso-legal.html, privacidad.html)
   ========================================================================== */
.legal h1 { margin: .25rem 0 1rem; }
.legal h2 {
  margin: 2.5rem 0 .75rem;
  font-size: 1.15rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}
.legal p, .legal li { color: var(--steel); line-height: 1.7; }
.legal .lead { color: var(--ink); }
.legal ul { padding-left: 1.1rem; }
.legal li { margin-bottom: .6rem; }
.legal a { color: var(--accent-dark); }

.legal-datos { margin: 0; }
.legal-datos > div {
  display: grid;
  grid-template-columns: 1fr;
  gap: .1rem;
  padding: .7rem 0;
  border-bottom: 1px solid var(--line);
}
.legal-datos dt { font-weight: 600; color: var(--ink); }
.legal-datos dd { margin: 0; color: var(--steel); }
@media (min-width: 40rem) {
  .legal-datos > div { grid-template-columns: 12rem 1fr; gap: 1rem; align-items: baseline; }
}

.legal-fecha {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-size: .9rem;
  color: var(--steel-soft);
}