/**
 * COMPONENTE — Steps (proceso paso a paso, acordeón)
 * Sección de ritmo claro (tinte amarillo suave). La fila activa se destaca
 * como píldora con degradado verde/amarillo de marca — según guía de interacción.
 * Mobile-first: título + lista apilados -> miniatura visible desde 640px.
 *
 * Animación: sin transiciones CSS de estado. La apertura/cierre, el fondo
 * degradado, el color de texto y la rotación de flecha los anima GSAP
 * (ver js/steps-accordion.js) con la curva "propalEase".
 */

.steps {
  background: var(--color-secondary-soft);
  color: var(--color-text);
  padding-block: var(--section-space);
}

.steps__intro {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-7);
}

.steps__title {
  font-size: var(--text-h2);
  max-width: 18ch;
  line-height: 1.15;
}

.steps__title-muted {
  color: var(--color-text-muted);
}

.steps__title-accent {
  color: var(--color-primary);
}

.steps__title-bright {
  color: var(--color-text);
}

.steps__thumb {
  display: none;
  flex-shrink: 0;
  width: clamp(96px, 10vw, 140px);
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background:
    repeating-linear-gradient(180deg,
      color-mix(in srgb, var(--color-text) 6%, transparent) 0 var(--space-2),
      transparent var(--space-2) calc(var(--space-2) + var(--space-4))),
    linear-gradient(200deg, color-mix(in srgb, var(--color-primary) 30%, var(--color-background)) 0%, color-mix(in srgb, var(--color-primary) 70%, var(--color-text)) 100%);
}

.steps__list {
  display: flex;
  flex-direction: column;
}

.steps__item {
  border-top: 1px solid var(--color-border);
}

.steps__item:last-child {
  border-bottom: 1px solid var(--color-border);
}

.steps__item.is-open {
  border-color: transparent;
}

.steps__trigger {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-5);
  width: 100%;
  padding: var(--space-4) var(--space-2);
  border-radius: var(--radius-md);
  overflow: hidden;
  text-align: left;
}

.steps__item.is-open .steps__trigger {
  padding: var(--space-5);
}

/* Píldora con degradado de marca — capa independiente para que GSAP anime
   su opacidad sin tener que interpolar el gradiente en sí. */
.steps__trigger-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  opacity: 0;
  pointer-events: none;
  background: linear-gradient(120deg,
    var(--color-primary) 0%,
    color-mix(in srgb, var(--color-primary) 55%, var(--color-secondary)) 100%);
}

.steps__number,
.steps__label,
.steps__arrow {
  position: relative;
  z-index: 1;
}

.steps__number {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  min-width: 2ch;
}

.steps__label {
  flex: 1;
  font-family: var(--font-family);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text);
}

.steps__arrow {
  font-size: 1.125rem;
  color: var(--color-text-muted);
}

.steps__panel-wrap {
  overflow: hidden;
}

.steps__panel {
  height: 0;
  opacity: 0;
  overflow: hidden;
}

.steps__panel p {
  max-width: 56ch;
  padding: 0 var(--space-5) var(--space-5) calc(2ch + var(--space-5));
  color: var(--color-text-muted);
  line-height: 1.6;
}

@media (min-width: 640px) {
  .steps__thumb {
    display: block;
  }
}

@media (min-width: 768px) {
  .steps__trigger {
    gap: var(--space-6);
  }

  .steps__label {
    font-size: 1.25rem;
  }
}