/* ==========================================================================
   Como funciona: três etapas ligadas por uma linha do tempo
   ========================================================================== */

.steps__title {
  max-width: 16ch;
}

.steps__list {
  position: relative;
  display: grid;
  gap: 2.75rem;
  margin-top: clamp(2.5rem, 2rem + 2.5vw, 4rem);
}

/* Linha do tempo (vertical no celular, horizontal no desktop) */
.steps__list::before {
  content: "";
  position: absolute;
  top: 0.5rem;
  bottom: 0.5rem;
  left: 0.375rem;
  width: 1px;
  background: linear-gradient(var(--c-line-strong), var(--c-line-strong) 80%, transparent);
  transform-origin: top;
  transition: transform 1.2s var(--ease-out);
}

.steps__item {
  position: relative;
  padding-left: 2.5rem;
}

/* Bolinha na linha do tempo; a última etapa fica preenchida */
.steps__node {
  position: absolute;
  top: 0.375rem;
  left: 0;
  width: 0.75rem;
  height: 0.75rem;
  border: 1px solid var(--c-pencil);
  border-radius: 50%;
  background: var(--c-ink);
}

.steps__item:last-child .steps__node {
  border-color: var(--c-white);
  background: var(--c-white);
}

.steps__number {
  display: block;
  color: var(--c-paper);
  font-size: clamp(3.5rem, 2.8rem + 3.2vw, 5.5rem);
  font-weight: 600;
  line-height: 0.9;
  letter-spacing: -0.045em;
}

/* Número só com contorno, quando o navegador suporta */
@supports (-webkit-text-stroke: 1px white) {
  .steps__number {
    color: transparent;
    -webkit-text-stroke: 1px var(--c-chalk);
  }
}

.steps__item-title {
  margin-top: 1.25rem;
  font-size: var(--fs-h3);
  font-weight: 620;
  letter-spacing: -0.025em;
}

.steps__text {
  max-width: 32ch;
  margin-top: 0.625rem;
  color: var(--c-chalk);
}

/* A linha "se desenha" quando a lista entra na tela */
@media (prefers-reduced-motion: no-preference) {
  .steps__list[data-reveal-state="hidden"]::before {
    transform: scaleY(0);
  }
}

/* ---------- Desktop: etapas lado a lado ---------- */

@media (width >= 56em) {
  .steps__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2.5rem;
    padding-top: 2.75rem;
  }

  .steps__list::before {
    inset: 0.375rem 0 auto;
    width: auto;
    height: 1px;
    background: linear-gradient(90deg, var(--c-line-strong), var(--c-line-strong) 85%, transparent);
    transform-origin: left;
  }

  .steps__item {
    padding-left: 0;
  }

  .steps__node {
    top: -2.75rem;
  }
}

@media (width >= 56em) and (prefers-reduced-motion: no-preference) {
  .steps__list[data-reveal-state="hidden"]::before {
    transform: scaleX(0);
  }
}