/* como-funciona.css — 4 passos ligados pelo "fio", com reveal no scroll */

.cf { background: #fff; }

.cf__header { max-width: 720px; margin: 0 auto var(--sp-16); text-align: center; }
.cf__kicker { justify-content: center; display: flex; }
.cf__header h2 { margin: var(--sp-3) 0 var(--sp-4); }
.cf__header p { color: var(--c-text-muted); font-size: var(--fs-18); line-height: 1.6; }

/* ── Carrossel vertical: trilho de números + palco ── */
.cf__carousel {
  position: relative;
  max-width: 1000px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

/* trilho com o "fio" ligando os números */
.cf__rail { position: relative; display: flex; flex-direction: column; align-items: center; gap: clamp(18px, 3vw, 34px); }
.cf__rail::before {
  content: "";
  position: absolute;
  top: 14px; bottom: 14px;
  width: 2px;
  background: var(--c-green-100);
}
.cf__dot {
  position: relative;
  z-index: 1;
  display: flex; align-items: center; justify-content: center;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--c-green-100);
  color: var(--c-text-faint);
  font-size: var(--fs-20);
  font-weight: var(--fw-semi);
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease),
              color 0.4s var(--ease), transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.cf__dot:hover { border-color: var(--c-green); color: var(--c-green-2); }
.cf__dot[aria-selected="true"] {
  background: var(--c-green);
  border-color: var(--c-green);
  color: #fff;
  transform: scale(1.08);
  box-shadow: 0 8px 22px rgba(74, 158, 110, 0.35);
}

/* palco: slides empilhados na MESMA célula → altura estável, sem pulo */
.cf__stage { display: grid; }
.cf__slide {
  grid-area: 1 / 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: center;
  opacity: 0;
  visibility: hidden;
  translate: 0 14px;
  pointer-events: none;
  transition: opacity 0.5s var(--ease), translate 0.5s var(--ease), visibility 0.5s;
}
.cf__slide.is-active { opacity: 1; visibility: visible; translate: none; pointer-events: auto; }

.step__text { padding-right: var(--sp-4); }
.step__text h3 { margin-bottom: var(--sp-3); color: var(--c-dark); }
.step__text p { color: var(--c-text-muted); line-height: 1.6; }

/* Card de exemplo */
.demo {
  background: var(--c-green-25);
  border: 1px solid var(--c-green-100);
  border-radius: var(--r-md);
  padding: var(--sp-5);
  box-shadow: var(--sh-sm);
}
.demo__label {
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  font-weight: var(--fw-regular);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-green-2);
  margin-bottom: var(--sp-3);
}
.demo__row { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); padding: 10px 0; }
.demo__row + .demo__row { border-top: 1px solid var(--c-green-100); }
.demo__q { font-size: var(--fs-14); font-weight: var(--fw-medium); color: var(--c-text); }
.demo__scale { display: flex; gap: 5px; flex-shrink: 0; }
.chip {
  padding: 4px 10px; border-radius: var(--r-pill);
  font-size: var(--fs-11); font-weight: var(--fw-medium);
  background: #fff; border: 1px solid var(--c-green-100); color: var(--c-text-soft);
}
.chip.is-on { background: var(--c-green); border-color: var(--c-green); color: #fff; }

.demo__cand { display: flex; flex-direction: column; gap: 4px; padding: 12px; background: #fff; border: 1px solid var(--c-green-100); border-radius: var(--r); }
.demo__cand + .demo__cand { margin-top: 10px; }
.demo__tag { font-family: var(--font-mono); font-size: 10px; font-weight: var(--fw-regular); letter-spacing: 0.06em; color: var(--c-green-2); }
.demo__cand-name { font-size: var(--fs-14); font-weight: var(--fw-medium); color: var(--c-text); }
.demo__note { margin-top: 12px; font-size: var(--fs-13); color: var(--c-text-soft); font-style: italic; }

.demo__hit { display: flex; align-items: center; justify-content: space-between; padding: 8px 0; font-size: var(--fs-14); color: var(--c-text); }
.demo__hit strong { color: var(--c-green-2); font-weight: var(--fw-semi); }
.demo__evo { margin-top: 10px; padding: 12px; background: #fff; border: 1px solid var(--c-green-100); border-radius: var(--r); font-size: var(--fs-13); color: var(--c-text-muted); }
.demo__evo b { display: block; font-family: var(--font-mono); font-size: 10px; font-weight: var(--fw-regular); letter-spacing: 0.06em; color: var(--c-green-2); margin-bottom: 4px; }
.demo__btn { margin-top: 12px; width: 100%; padding: 10px; border-radius: var(--r); background: var(--c-green); color: #fff; font-weight: var(--fw-semi); font-size: var(--fs-14); text-align: center; }

.demo__moved { display: flex; align-items: center; gap: 8px; margin: 10px 0; }
.badge-moved { padding: 3px 10px; border-radius: var(--r-pill); background: var(--c-green-50); color: var(--c-green-2); font-family: var(--font-mono); font-size: 10px; font-weight: var(--fw-regular); letter-spacing: 0.05em; text-transform: uppercase; }
.badge-acq { padding: 3px 12px; border-radius: var(--r-pill); background: var(--c-success); color: #fff; font-size: var(--fs-13); font-weight: var(--fw-semi); }
.demo__maint { margin-top: 12px; padding: 12px; background: #fff; border: 1px dashed var(--c-green-300, var(--c-green-100)); border-radius: var(--r); }
.demo__maint b { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.05em; color: var(--c-green-2); text-transform: uppercase; }
.demo__maint p { font-size: var(--fs-13); color: var(--c-text-soft); margin-top: 4px; }

/* dica de affordance (os números são clicáveis) */
.cf__hint {
  display: flex; align-items: center; justify-content: center; gap: 7px;
  margin-top: var(--sp-8);
  font-size: var(--fs-14);
  color: var(--c-green-2);
  font-weight: var(--fw-medium);
}
.cf__hint i { font-size: 17px; }

/* ── Responsivo ── */
@media (max-width: 800px) {
  .cf__carousel { grid-template-columns: 1fr; gap: var(--sp-6); }
  /* trilho vira horizontal acima do palco */
  .cf__rail { flex-direction: row; justify-content: center; gap: 16px; }
  .cf__rail::before { top: 50%; left: 16px; right: 16px; bottom: auto; width: auto; height: 2px; }
  .cf__dot { width: 42px; height: 42px; font-size: var(--fs-17); }
  .cf__slide { grid-template-columns: 1fr; }
  .step__text { padding-right: 0; }
}