/* ─────────────────────────────────────────────────────────────────
   KairósApp landing · kairosapp.app (raíz)
   Identidad: Dasensy permanente (tokens --ds-*)
   No usa tokens --ev-* porque no pertenece a ningún evento.
   Tokens canónicos en .claudedoc/kairosapp-brand.md
   ───────────────────────────────────────────────────────────────── */

:root {
  --ds-brand-primary:      #1B4B7A;
  --ds-brand-primary-dk:   #0F2E4D;
  --ds-brand-primary-lt:   #3B6FA0;
  --ds-brand-accent:       #E8A33D;
  --ds-brand-accent-soft:  #F5C876;
  --ds-brand-neutral:      #4A5568;
  --ds-brand-neutral-lt:   #718096;

  /* Superficies neutras — capa Dasensy permanente, no sobrescritas por evento */
  --ds-surface:            #FAFBFC;   /* Fondo de página */
  --ds-surface-elevated:   #FFFFFF;   /* Fondo de cards y header sticky */
  --ds-border:             #E2E8F0;   /* Bordes finos */

  --ds-font-display:       'Fraunces', Georgia, serif;
  --ds-font-body:          'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--ds-font-body);
  color: var(--ds-brand-primary-dk);
  background: var(--ds-surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

h1, h2, h3 {
  font-family: var(--ds-font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ds-brand-primary-dk);
}

h1 {
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.1;
  margin: 0.5rem 0 1.25rem;
}
h1 em {
  color: var(--ds-brand-accent);
  font-style: italic;
}

h2 {
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
  margin: 0 0 1rem;
}

h3 {
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
}

p { margin: 0 0 0.85rem; }

a {
  color: var(--ds-brand-primary);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ds-brand-accent);
  margin: 0 0 0.5rem;
}
.eyebrow--center { display: block; text-align: center; }

.section-title {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 2.5rem;
}

/* ── Botones ─────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 0.85rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
  border: 1.5px solid transparent;
  cursor: pointer;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn--primary {
  background: var(--ds-brand-primary);
  color: #fff;
  box-shadow: 0 4px 14px -4px rgba(27, 75, 122, 0.4);
}
.btn--primary:hover {
  background: var(--ds-brand-primary-dk);
  box-shadow: 0 6px 20px -6px rgba(27, 75, 122, 0.55);
}
.btn--ghost {
  background: transparent;
  color: var(--ds-brand-primary);
  border-color: var(--ds-brand-primary);
}
.btn--ghost:hover { background: rgba(27, 75, 122, 0.05); }
.btn--large { padding: 1.1rem 2rem; font-size: 1.05rem; }

/* ── Topbar ──────────────────────────────────────────────── */
.topbar {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--ds-border);
  position: sticky; top: 0; z-index: 50;
}
.topbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  padding-bottom: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.brand__mark {
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--ds-brand-primary-dk);
  border-radius: 50%;
}
.brand__text strong {
  display: block;
  font-family: var(--ds-font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ds-brand-primary-dk);
}
.brand__text small {
  display: block;
  font-size: 0.72rem;
  color: var(--ds-brand-neutral-lt);
  letter-spacing: 0.05em;
}
.nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}
.nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ds-brand-neutral);
}
.nav a:hover { color: var(--ds-brand-primary); text-decoration: none; }
.nav a.btn { color: #fff; }

@media (max-width: 820px) {
  .nav a:not(.btn) { display: none; }
}

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  padding: clamp(3rem, 8vw, 6rem) 0;
  background: linear-gradient(180deg, #FFFFFF 0%, var(--ds-surface) 100%);
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 3rem;
  align-items: center;
}
@media (max-width: 880px) {
  .hero__grid { grid-template-columns: 1fr; gap: 2rem; }
}

.lead {
  font-size: 1.15rem;
  color: var(--ds-brand-neutral);
  max-width: 56ch;
}
.hero__cta {
  display: flex;
  gap: 0.75rem;
  margin: 1.5rem 0 1.75rem;
  flex-wrap: wrap;
}
.hero__bullets {
  list-style: none;
  padding: 0; margin: 0;
  display: flex; flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  font-size: 0.9rem;
  color: var(--ds-brand-neutral);
}
.hero__bullets li::before {
  content: "✓";
  color: var(--ds-brand-accent);
  font-weight: 700;
  margin-right: 0.35rem;
}

.hero__card {
  background: var(--ds-surface-elevated);
  border: 1px solid var(--ds-border);
  border-radius: 16px;
  padding: 1.75rem;
  box-shadow: 0 10px 40px -20px rgba(15, 46, 77, 0.25);
}
.hero__card h2 {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ds-brand-accent);
  margin: 0 0 0.5rem;
  font-family: var(--ds-font-body);
}
.hero__card dl {
  margin: 1.25rem 0 0; padding: 0;
  display: grid;
  gap: 0.6rem;
}
.hero__card dl > div {
  display: flex; justify-content: space-between;
  border-top: 1px dashed var(--ds-border);
  padding-top: 0.6rem;
  font-size: 0.92rem;
}
.hero__card dt { color: var(--ds-brand-neutral-lt); }
.hero__card dd { margin: 0; font-weight: 600; color: var(--ds-brand-primary-dk); }

/* ── Sections genéricas ──────────────────────────────────── */
section { padding: clamp(3rem, 6vw, 5rem) 0; }
.features { background: var(--ds-surface-elevated); border-top: 1px solid var(--ds-border); border-bottom: 1px solid var(--ds-border); }

.audience__intro {
  max-width: 720px;
  margin: 0 auto 2rem;
  text-align: center;
  color: var(--ds-brand-neutral);
}

.features__grid, .audience__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.features__grid article,
.audience__grid article {
  background: var(--ds-surface);
  border: 1px solid var(--ds-border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: border-color 0.15s, transform 0.15s;
}
.features__grid article:hover,
.audience__grid article:hover {
  border-color: var(--ds-brand-accent);
  transform: translateY(-2px);
}

/* ── Case ────────────────────────────────────────────────── */
.case {
  background: linear-gradient(135deg, var(--ds-brand-primary-dk) 0%, var(--ds-brand-primary) 100%);
  color: #fff;
}
.case h2 { color: #fff; }
.case .eyebrow { color: var(--ds-brand-accent-soft); }
.case__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 3rem;
  align-items: center;
}
@media (max-width: 880px) { .case__grid { grid-template-columns: 1fr; } }
.case p { color: rgba(255, 255, 255, 0.88); }

.metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.metrics > div {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  padding: 1.25rem;
  text-align: center;
}
.metrics strong {
  display: block;
  font-family: var(--ds-font-display);
  font-size: 2rem;
  color: var(--ds-brand-accent);
  line-height: 1;
  margin-bottom: 0.35rem;
}
.metrics span {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.75);
}

/* ── Pricing ─────────────────────────────────────────────── */
.pricing__intro {
  max-width: 720px;
  margin: 0 auto 2rem;
  text-align: center;
  color: var(--ds-brand-neutral);
}
.pricing__table {
  width: 100%;
  border-collapse: collapse;
  background: var(--ds-surface-elevated);
  border: 1px solid var(--ds-border);
  border-radius: 12px;
  overflow: hidden;
  font-size: 0.94rem;
}
.pricing__table th, .pricing__table td {
  padding: 0.9rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--ds-border);
}
.pricing__table th {
  background: var(--ds-brand-primary-dk);
  color: #fff;
  font-weight: 600;
}
.pricing__table tr:last-child td { border-bottom: none; }
.pricing__table tr:nth-child(even) td { background: var(--ds-surface); }
.pricing__note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--ds-brand-neutral-lt);
  margin-top: 1rem;
}

/* ── CTA final ───────────────────────────────────────────── */
.cta-final {
  background: var(--ds-brand-primary-dk);
  color: #fff;
  text-align: center;
}
.cta-final h2 {
  color: #fff;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
}
.cta-final p {
  color: rgba(255, 255, 255, 0.82);
  max-width: 640px;
  margin: 0 auto 1.5rem;
}

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  background: #fff;
  border-top: 1px solid var(--ds-border);
  padding: 2rem 0;
  font-size: 0.88rem;
  color: var(--ds-brand-neutral);
}
.footer__inner {
  display: flex; flex-wrap: wrap;
  justify-content: space-between; align-items: center;
  gap: 1rem;
}
.footer nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.footer__legal {
  width: 100%;
  text-align: center;
  margin-top: 1rem;
  color: var(--ds-brand-neutral-lt);
  font-size: 0.78rem;
}