/* ============================================================
   Brouo Authority® — S8: CTA principal
   Cierre de conversión sobre fondo claro (#fff). El botón es
   el elemento más visible del bloque. Banda de clientes
   incluida al pie, espejo del home pero en variante light.
   ============================================================ */

.cta-main {
  text-align: center;
  padding-block: var(--space-9);
  position: relative;
  isolation: isolate;
}

.cta-main__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  max-width: 760px;
  margin-inline: auto;
}

/* Brand icon */
.cta-main__icon {
  display: block;
  width: clamp(48px, 5vw + 24px, 64px);
  height: auto;
  margin-bottom: var(--space-3);
  user-select: none;
}

.cta-main__title {
  font-size: clamp(2rem, 3.5vw + 1rem, 3.25rem);
  font-weight: var(--weight-bold);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--text-on-dark);
  text-wrap: balance;
  margin: 0;
}

/* Énfasis verde — refuerza el contraste de la promesa */
.cta-main__title-em {
  font-style: normal;
  color: var(--color-accent);
}

.cta-main__subhead {
  font-size: var(--text-md);
  line-height: var(--lh-normal);
  color: var(--text-on-dark-muted);
  max-width: 60ch;
  margin: 0;
}

.cta-main__action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

/* Override del .btn--accent para alto contraste sobre fondo dark */
.cta-main .btn--accent {
  --btn-bg-hover: #FFFFFF;
  --btn-color-hover: var(--color-ink);
}

/* ─── Clients band, anidada al pie del CTA ─── */
.cta-main__clients {
  margin-top: var(--space-9);
  text-align: center;
}

.cta-main__clients-eyebrow {
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-on-dark-muted);
  text-align: center;
  margin: 0 0 var(--space-6) 0;
}

.cta-main__clients-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6) var(--space-5);
  align-items: center;
  justify-items: center;
}

.cta-main__clients-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 48px;
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

.cta-main__clients-list.is-visible .cta-main__clients-item {
  opacity: 1;
  transform: translateY(0);
}

.cta-main__clients-list.is-visible .cta-main__clients-item:nth-child(1) { transition-delay: 0ms; }
.cta-main__clients-list.is-visible .cta-main__clients-item:nth-child(2) { transition-delay: 60ms; }
.cta-main__clients-list.is-visible .cta-main__clients-item:nth-child(3) { transition-delay: 120ms; }
.cta-main__clients-list.is-visible .cta-main__clients-item:nth-child(4) { transition-delay: 180ms; }
.cta-main__clients-list.is-visible .cta-main__clients-item:nth-child(5) { transition-delay: 240ms; }
.cta-main__clients-list.is-visible .cta-main__clients-item:nth-child(6) { transition-delay: 300ms; }

.cta-main__clients-item img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.65;
  transition:
    opacity var(--duration-base) var(--ease-out),
    transform var(--duration-base) var(--ease-out);
}

@media (hover: hover) {
  .cta-main__clients-item:hover img {
    opacity: 1;
    transform: translateY(-2px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .cta-main__clients-item,
  .cta-main__clients-list.is-visible .cta-main__clients-item {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .cta-main__clients-item img {
    transition: none;
  }
}

/* Tablet ≥768 — padding y gap más amplios + grilla 3 columnas */
@media (min-width: 768px) {
  .cta-main {
    padding-block: var(--space-10);
  }

  .cta-main__inner {
    gap: var(--space-6);
  }

  .cta-main__clients {
    margin-top: var(--space-8);
  }

  .cta-main__clients-list {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-7) var(--space-6);
  }

  .cta-main__clients-item {
    height: 52px;
  }
}

/* Desktop ≥1024 — padding extra + grilla 6 columnas */
@media (min-width: 1024px) {
  .cta-main {
    padding-block: calc(var(--space-10) + var(--space-5));
  }

  .cta-main__inner {
    margin-inline: auto;
  }

  .cta-main__clients-list {
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-6);
  }

  .cta-main__clients-item {
    height: 48px;
  }
}