/* ============================================================
   21-experto.css · "El experto directo" (#experto)
   Fondo blanco, 3 bloques con borde superior lavanda → ejecutivo al
   hover. Reveal escalonado vía nav-reveal.js (.expert__block).
   ============================================================ */

.expert {
  background: var(--color-dominant);
}

.expert__intro {
  font-size: clamp(1.15rem, 1.7vw, 1.45rem);
  line-height: 1.5;
  color: var(--color-ink);
  max-width: 64ch;
  margin-bottom: var(--space-xl);
  font-weight: 400;
}

.expert__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.expert__block {
  padding: var(--space-md) 0 0;
  border-top: 3px solid var(--vp-lavanda);
  transition: transform var(--t-med), border-color var(--t-fast);
}
.expert__block:hover {
  transform: translateY(-4px);
  border-top-color: var(--vp-azul-ejecutivo);
}

.expert__block-title {
  font-size: clamp(1.2rem, 1.8vw, 1.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  margin-bottom: var(--space-sm);
}
.expert__block p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.expert__closing {
  margin-top: var(--space-xl);
  padding: var(--space-md) 0 var(--space-md) var(--space-md);
  border-left: 4px solid var(--vp-lavanda);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--color-ink);
  max-width: 70ch;
}

@media (max-width: 900px) {
  .expert__grid { grid-template-columns: 1fr; gap: var(--space-md); }
}

@media (prefers-reduced-motion: reduce) {
  .expert__block { transition: none !important; }
  .expert__block:hover { transform: none !important; }
}