/* =============================================================
   LAYOUT — contenedores, secciones, rejilla editorial y reveals
   ============================================================= */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  position: relative;
  padding-block: var(--space-section);
}

.section--sm {
  padding-block: var(--space-section-sm);
}

.section--tint {
  background: var(--c-off-white);
}

/* Superficie oscura: se usa una sola vez (Forma de trabajar) para
   dar contraste editorial sin romper el dominio del blanco. */
.on-dark {
  background: var(--c-ink);
  color: var(--c-white);
}

.on-dark .eyebrow {
  color: rgba(255, 255, 255, 0.55);
}

.on-dark .eyebrow::before {
  background: var(--c-line-invert);
}

.on-dark .section-intro {
  color: rgba(255, 255, 255, 0.7);
}

/* ---------- Rejilla de 12 columnas ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--gutter);
  row-gap: var(--s-6);
}

/* ---------- Cabecera de seccion ---------- */
/* Antetítulo: serif en versalitas y con peso, no una etiqueta genérica */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  margin: 0;
  font-family: var(--f-serif);
  font-size: var(--t-eyebrow);
  font-weight: var(--w-serif-bold);
  line-height: 1;
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--c-grey-700);
}

.eyebrow::before {
  content: '';
  width: clamp(24px, 4vw, 48px);
  height: 1px;
  background: var(--c-line-strong);
}

.eyebrow--plain::before {
  display: none;
}

.section-head {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--gutter);
  row-gap: var(--s-5);
  align-items: end;
  margin-bottom: clamp(2.5rem, 1.5rem + 3vw, 5rem);
}

.section-head__title {
  grid-column: 1 / span 7;
}

.section-head__title h2,
.reviews__head h2 {
  margin-top: clamp(1rem, 2vw, 1.75rem);
}

.section-head__aside {
  grid-column: 9 / span 4;
  padding-bottom: 0.6rem;
}

.section-intro {
  max-width: 46ch;
  color: var(--c-grey-700);
  font-size: var(--t-lg);
  line-height: 1.65;
}

@media (max-width: 900px) {
  .section-head__title,
  .section-head__aside {
    grid-column: 1 / -1;
  }
  .section-head__aside {
    padding-bottom: 0;
  }
}

/* Linea divisoria fina — recurso grafico recurrente */
.rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: var(--c-line);
}

.on-dark .rule {
  background: var(--c-line-invert);
}

/* =============================================================
   REVEAL — aparicion progresiva al entrar en viewport
   Sutil: opacidad + desplazamiento minimo, curva lenta.
   ============================================================= */

/* El estado oculto solo se aplica si hay JavaScript (clase `js` en <html>).
   Sin JS, el contenido es visible por defecto: nunca queda una pagina en blanco. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity var(--d-slow) var(--ease-out),
    transform var(--d-slow) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}