/* pulse.kaistrategylab.com — shell de la familia Pulse (identidad Kai herramientas:
   azul-noche + teal). Subir assetVersion en src/config.json al cambiar este
   archivo (Hostinger lo cachea 7 días tras su CDN). */
:root {
  --bg-base: #0b1120;
  --bg-deep: #060d1a;
  --bg-elev: #0f172a;
  --text: #e8eef5;
  --muted: #8aa0bd;
  --muted-soft: #6e85a3;
  --accent: #2dd4bf;
  --accent-deep: #14b8a6;
  --blue: #3b82f6;
  --border: rgba(138, 160, 189, 0.18);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(1100px 520px at 78% -10%, rgba(45, 212, 191, 0.07), transparent 60%),
    radial-gradient(900px 480px at 12% 8%, rgba(59, 130, 246, 0.06), transparent 55%),
    var(--bg-base);
  color: var(--text);
  font-family: Inter, 'Segoe UI', system-ui, -apple-system, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
.container { max-width: 960px; margin: 0 auto; padding: 0 24px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header { padding: 20px 0; border-bottom: 1px solid var(--border); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.05rem; color: var(--text); letter-spacing: 0.02em; }
.brand:hover { text-decoration: none; }
.brand-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 8px; flex: 0 0 auto;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #062019; font-weight: 800; font-size: 0.95rem;
}
.brand small { color: var(--muted); font-weight: 500; }

/* Hero */
.hero { padding: 72px 0 48px; }
.eyebrow { color: var(--accent); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; margin: 0 0 14px; }
h1 { font-size: clamp(1.9rem, 4.5vw, 2.8rem); line-height: 1.18; margin: 0 0 18px; letter-spacing: -0.01em; }
.lead { color: var(--muted); font-size: 1.08rem; max-width: 44rem; margin: 0; }

/* Tarjetas de pulsos */
.pulses { padding: 24px 0 64px; display: grid; gap: 20px; }
.pulse-card {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.65));
  border: 1px solid var(--border); border-radius: 16px; padding: 26px 28px;
}
.pulse-card h2 { margin: 0 0 8px; font-size: 1.25rem; }
.pulse-card p { color: var(--muted); margin: 0 0 14px; }
.badge {
  display: inline-block; padding: 3px 12px; border-radius: 999px;
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  border: 1px solid var(--accent-deep); color: var(--accent); margin-bottom: 12px;
}
.badge--soon { border-color: var(--muted-soft); color: var(--muted); }
.cta {
  display: inline-block; padding: 10px 22px; border-radius: 10px; font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep)); color: #062019;
}
.cta:hover { text-decoration: none; filter: brightness(1.08); }

/* Páginas legales / prosa */
.prose { padding: 48px 0 64px; max-width: 760px; }
.prose h1 { font-size: 1.7rem; }
.prose h2 { font-size: 1.15rem; margin: 34px 0 10px; color: var(--text); }
.prose p, .prose li { color: var(--muted); }
.prose strong { color: var(--text); }
.meta-line { color: var(--muted-soft); font-size: 0.85rem; }

/* ===== Landing de pulso (Fase 3) ===== */
.container--ancho { max-width: 1240px; }
.container--angosto { max-width: 760px; }
.site-header--sticky {
  position: sticky; top: 0; z-index: 40;
  background: rgba(11, 17, 32, 0.86); backdrop-filter: blur(8px);
}
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.header-nav { display: flex; align-items: center; gap: 18px; font-size: 0.92rem; }
.header-nav a { color: var(--muted); }
.header-nav a:hover { color: var(--accent); text-decoration: none; }
/* El .cta de la cabecera hereda el gris de .header-nav a (más específico) y
   quedaba ilegible sobre el degradé teal — mismo tinte oscuro que el CTA del hero. */
.header-nav a.cta, .header-nav a.cta:hover { color: #062019; }
.cta--sm { padding: 7px 16px; font-size: 0.9rem; }
.cta--lg { padding: 13px 28px; font-size: 1.05rem; }
.cta--full { display: block; text-align: center; }
.cta-ghost {
  display: inline-block; padding: 12px 24px; border-radius: 10px; font-weight: 700;
  border: 1px solid var(--accent-deep); color: var(--accent);
}
.cta-ghost:hover { text-decoration: none; background: rgba(45, 212, 191, 0.08); }
.cta-ghost--full { display: block; text-align: center; }
.hero--pulso { padding: 64px 0 40px; }
.hero--pulso h1, .sec h2, .sec--cierre h2 { text-wrap: balance; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-top: 26px; }
.cta-row--center { justify-content: center; }
.micro { color: var(--muted-soft); font-size: 0.84rem; margin: 10px 0 0; }
.micro--center { text-align: center; }
.vivo-badge {
  display: inline-flex; align-items: center; gap: 9px; margin-top: 22px;
  border: 1px solid rgba(45, 212, 191, 0.4); border-radius: 999px; padding: 6px 16px;
  font-size: 0.82rem; font-weight: 600; color: var(--accent);
}
.dot-live { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex: 0 0 auto; animation: pulso-vivo 2.4s ease-in-out infinite; }
@keyframes pulso-vivo { 0%, 100% { box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.5); } 50% { box-shadow: 0 0 0 6px rgba(45, 212, 191, 0); } }
.sec { padding: 44px 0; }
.sec h2 { font-size: clamp(1.4rem, 3vw, 1.8rem); margin: 0 0 14px; }
.sec-intro { color: var(--muted); max-width: 46rem; margin: 0 0 22px; text-wrap: pretty; }
.sec-intro--post { margin: 18px 0 0; }
.sec--orbita { padding-bottom: 28px; }
.tres, .cuatro { display: grid; gap: 16px; }
.tres { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.cuatro { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.dos { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); }
.carta {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.65));
  border: 1px solid var(--border); border-radius: 16px; padding: 22px 24px;
}
.carta h3 { margin: 0 0 8px; font-size: 1.05rem; }
.carta p { color: var(--muted); margin: 0; font-size: 0.95rem; }
.carta ul { margin: 10px 0 0; padding-left: 20px; color: var(--muted); font-size: 0.95rem; }
.carta li { margin: 6px 0; }
.carta-pie { margin-top: 14px !important; }
.carta--ruta { border-color: rgba(45, 212, 191, 0.45); }
.chip-tag {
  display: inline-block; padding: 2px 12px; border-radius: 999px; margin-bottom: 10px;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase;
  border: 1px solid var(--muted-soft); color: var(--muted);
}
.chip-tag--acc { border-color: var(--accent-deep); color: var(--accent); }
/* Comparativa "con Kai compras / con una IA pública obtienes" + quién está detrás */
.carta--si { border-color: rgba(45, 212, 191, 0.45); }
.carta--si li { list-style: none; position: relative; padding-left: 2px; }
.carta--si ul { padding-left: 22px; }
.carta--si li::before { content: "✓"; color: var(--accent); font-weight: 700; position: absolute; left: -20px; }
.carta--no li { list-style: none; position: relative; padding-left: 2px; color: var(--muted-soft); }
.carta--no ul { padding-left: 22px; }
.carta--no li::before { content: "—"; color: var(--muted-soft); position: absolute; left: -22px; }
.ancla-frase { margin: 24px 0 0; font-weight: 700; color: var(--accent); font-size: 1.05rem; text-wrap: balance; }
.quien { display: grid; grid-template-columns: 240px 1fr; gap: 28px; align-items: start; }
.quien-foto { width: 100%; border-radius: 16px; border: 1px solid var(--border); object-fit: cover; aspect-ratio: 1 / 1; object-position: top; }
.quien-lista { margin: 14px 0; padding-left: 22px; color: var(--muted); }
.quien-lista li { margin: 7px 0; list-style: none; position: relative; }
.quien-lista li::before { content: "✓"; color: var(--accent); font-weight: 700; position: absolute; left: -20px; }
@media (max-width: 720px) { .quien { grid-template-columns: 1fr; } .quien-foto { max-width: 220px; } }
.agita {
  margin: 26px 0 0; padding: 16px 20px; border-left: 3px solid var(--accent-deep);
  background: rgba(45, 212, 191, 0.06); border-radius: 0 12px 12px 0;
  color: var(--text); font-size: 0.98rem; text-wrap: pretty;
}
.pasos { list-style: none; counter-reset: paso; margin: 0; padding: 0; display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.pasos li { counter-increment: paso; background: rgba(15, 23, 42, 0.7); border: 1px solid var(--border); border-radius: 14px; padding: 18px 20px; position: relative; }
.pasos li::before {
  content: counter(paso); display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: 50%; margin-bottom: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep)); color: #062019; font-weight: 800; font-size: 0.9rem;
}
.pasos h3 { margin: 0 0 6px; font-size: 0.98rem; }
.pasos p { margin: 0; color: var(--muted); font-size: 0.92rem; }
.pasos--lineal { grid-template-columns: 1fr; }
.banda { background: linear-gradient(90deg, rgba(45, 212, 191, 0.12), rgba(59, 130, 246, 0.1)); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 26px 0; }
.banda-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.banda-row p { margin: 0; font-weight: 600; max-width: 38rem; }
.met h3 { font-size: 0.95rem; margin: 0 0 6px; color: var(--accent); }
.met p { margin: 0; color: var(--muted); font-size: 0.9rem; }
.firma { margin-top: 24px; color: var(--muted); font-size: 0.92rem; border-top: 1px solid var(--border); padding-top: 16px; }
.precios { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); align-items: start; }
.precio { background: rgba(15, 23, 42, 0.7); border: 1px solid var(--border); border-radius: 16px; padding: 24px 26px; }
.precio--destacado { border-color: var(--accent-deep); box-shadow: 0 0 34px rgba(45, 212, 191, 0.12); }
.precio h3 { margin: 0 0 4px; font-size: 1.02rem; }
.precio-num { font-size: 1.9rem; font-weight: 800; margin: 6px 0 2px; letter-spacing: -0.02em; }
.precio-num s { color: var(--muted-soft); font-size: 1.05rem; font-weight: 600; margin-left: 6px; }
.precio-sub { color: var(--muted-soft); font-size: 0.85rem; margin: 0 0 12px; }
.precio ul { margin: 0 0 16px; padding-left: 20px; color: var(--muted); font-size: 0.92rem; }
.precio li { margin: 6px 0; }
.confianza { display: flex; flex-wrap: wrap; gap: 10px 22px; list-style: none; margin: 26px 0 0; padding: 0; font-size: 0.85rem; color: var(--muted); }
.confianza li::before { content: "✓ "; color: var(--accent); font-weight: 700; }
.sec--leads { background: rgba(15, 23, 42, 0.5); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.leads-mailto { margin: 18px 0 0; }
#faq details { border: 1px solid var(--border); border-radius: 12px; margin-bottom: 10px; background: rgba(15, 23, 42, 0.6); }
#faq summary { cursor: pointer; padding: 15px 18px; font-weight: 600; list-style: none; position: relative; padding-right: 40px; }
#faq summary::-webkit-details-marker { display: none; }
#faq summary::after { content: "+"; position: absolute; right: 18px; top: 12px; color: var(--accent); font-size: 1.2rem; font-weight: 700; }
#faq details[open] summary::after { content: "–"; }
#faq details p { margin: 0; padding: 0 18px 16px; color: var(--muted); font-size: 0.95rem; }
.sec--cierre { text-align: center; padding-bottom: 64px; }
.sec--cierre .sec-intro { margin-left: auto; margin-right: auto; }
@media (max-width: 720px) {
  .header-nav a:not(.cta) { display: none; }
  .banda-row { justify-content: center; text-align: center; }
}

/* Footer canónico Kai: centrado, 4 niveles, acento teal */
.footer-canon {
  border-top: 1px solid var(--border); margin-top: 32px; padding: 36px 24px 44px;
  text-align: center; display: grid; gap: 8px; max-width: 760px; margin-left: auto; margin-right: auto;
  font-size: 0.9rem; color: var(--muted);
}
.footer-canon a { color: var(--muted); }
.footer-canon a:hover { color: var(--accent); }
.footer-tagline { display: flex; align-items: center; justify-content: center; gap: 8px; margin: 0; color: var(--text); }
.brand-badge--sm { width: 22px; height: 22px; border-radius: 6px; font-size: 0.75rem; }
.footer-legal a { white-space: nowrap; }
.footer-canon p { margin: 0; }