/* Portfolio Stack — lógica portada da V2 (sem fotos) */

.portfolio-stack-section {
  position: relative;
  padding: 160px 0 0;
}

.portfolio-stack {
  --stack-bar-h: 64px;
  --stack-top: calc(var(--nav-h) + 24px);
  --stack-card-h: min(560px, calc(100vh - var(--stack-top) - 48px));
  max-width: var(--container-wide);
  margin: 64px auto 0;
  padding: 0 64px;
}

.portfolio-stack-card {
  position: sticky;
  top: calc(var(--stack-top) + (var(--stack-index) * var(--stack-bar-h)));
  z-index: calc(10 + var(--stack-index));
  display: grid;
  grid-template-rows: var(--stack-bar-h) minmax(0, auto);
  min-height: var(--stack-card-h);
  margin-bottom: 96px;
  border: 1px solid rgba(18, 42, 68, 0.11);
  background: var(--c-white);
  box-shadow: 0 24px 64px -40px rgba(7, 19, 31, 0.22);
  overflow: hidden;
  transition:
    min-height 560ms var(--ease-out),
    box-shadow 560ms var(--ease-out),
    border-color 320ms var(--ease-standard);
}

.portfolio-stack-card.is-collapsed {
  min-height: var(--stack-bar-h);
  border-color: rgba(18, 42, 68, 0.14);
  box-shadow: 0 8px 28px -16px rgba(7, 19, 31, 0.28);
}

.portfolio-stack-card__bar {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  min-height: var(--stack-bar-h);
  border-bottom: 1px solid rgba(18, 42, 68, 0.12);
  background: rgba(255, 255, 255, 0.92);
  color: var(--c-brand);
  padding: 0 28px 0 40px;
  text-decoration: none;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: background 200ms var(--ease-standard);
}

.portfolio-stack-card__bar:hover {
  background: rgba(255, 255, 255, 1);
}

.portfolio-stack-card__bar::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 50%;
  width: 3px;
  height: 18px;
  background: var(--c-silver-deep);
  transform: translateY(-50%);
  opacity: 0.8;
}

.portfolio-stack-card__bar span {
  min-width: 0;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.11em;
  line-height: 1;
  text-transform: uppercase;
  color: var(--c-brand);
}

.portfolio-stack-card__bar small {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--c-gray-500);
}

.portfolio-stack-card__panel {
  display: flex;
  align-items: center;
  min-height: calc(var(--stack-card-h) - var(--stack-bar-h));
  background: var(--c-cream);
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 420ms var(--ease-standard),
    transform 560ms var(--ease-out),
    visibility 0ms linear 0ms;
}

.portfolio-stack-card.is-collapsed .portfolio-stack-card__panel {
  visibility: hidden;
  opacity: 0;
  transform: translateY(-16px);
  transition:
    opacity 260ms var(--ease-standard),
    transform 360ms var(--ease-standard),
    visibility 0ms linear 280ms;
}

.portfolio-stack-card__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 100%;
  max-width: 760px;
  padding: clamp(40px, 5vw, 72px);
}

.portfolio-stack-card__copy .empreendimento-logo {
  height: 36px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  margin-bottom: 28px;
  display: block;
}

.portfolio-stack-card__copy .eyebrow {
  margin-bottom: 16px;
}

.portfolio-stack-card__copy h3 {
  margin: 0 0 20px;
  color: var(--c-text);
  font-family: var(--font-serif);
  font-size: clamp(36px, 3.8vw, 56px);
  font-weight: 400;
  line-height: 1.04;
  letter-spacing: 0;
}

.portfolio-stack-card__copy p {
  margin: 0 0 24px;
  color: var(--c-gray-700);
  font-size: 17px;
  line-height: 1.65;
}

.shopping-row__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 24px;
  margin-bottom: 32px;
}

.shopping-row__meta span {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--c-gray-500);
}

.portfolio-stack-card__copy .text-link {
  color: var(--c-text);
}

/* Espaço de saída para desempilhar o último card */
.portfolio-stack-exit {
  height: 56vh;
}

@media (max-width: 1024px) {
  .portfolio-stack-section {
    padding: 96px 0 0;
  }

  .portfolio-stack {
    --stack-bar-h: 58px;
    --stack-top: calc(var(--nav-h) + 14px);
    margin-top: 48px;
    padding: 0 32px;
  }

  .portfolio-stack-card {
    min-height: 0;
    margin-bottom: 64px;
  }

  .portfolio-stack-card__bar {
    grid-template-columns: minmax(0, 1fr);
    gap: 3px;
    padding: 0 20px 0 32px;
  }

  .portfolio-stack-card__bar::before {
    left: 16px;
    height: 14px;
  }

  .portfolio-stack-card__panel {
    min-height: 0;
    align-items: flex-start;
  }

  .portfolio-stack-card__copy {
    padding: 24px 28px 36px;
    max-width: 100%;
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .portfolio-stack-section { padding: 80px 0 0; }

  .portfolio-stack {
    --stack-bar-h: 54px;
    padding: 0 16px;
  }

  .portfolio-stack-card__bar span { font-size: 12px; }
  .portfolio-stack-card__bar small { font-size: 10px; }
  .portfolio-stack-card__copy h3 { font-size: 30px; }
  .portfolio-stack-card__copy p { font-size: 15px; }
  .portfolio-stack-card__copy .empreendimento-logo { height: 28px; }
}

@media (prefers-reduced-motion: reduce) {
  .portfolio-stack-card,
  .portfolio-stack-card__panel {
    transition: none;
  }
}