/* Showcase isolado: as imagens são páginas reais, sem vídeo ou biblioteca. */
.showcase {
  background: var(--paper);
}

.showcase-heading {
  max-width: 850px;
  margin-bottom: 36px;
}

.showcase-heading h2 {
  max-width: 760px;
}

.showcase-heading .lead {
  max-width: 700px;
  margin-bottom: 0;
}

.showcase-grid {
  display: grid;
  gap: 24px;
  align-items: center;
}

.showcase-selector,
.showcase-preview {
  min-width: 0;
}

.showcase-items {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 16px;
}

.showcase-item {
  position: relative;
  display: block;
  width: 100%;
  min-height: 102px;
  padding: 14px 0 16px;
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.showcase-item::before {
  position: absolute;
  inset: -1px 0 auto;
  height: 2px;
  background: var(--terra);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 250ms ease;
}

.showcase-item[aria-pressed="true"]::before {
  transform: scaleX(1);
}

.showcase-item:hover .showcase-name,
.showcase-item[aria-pressed="true"] .showcase-name {
  color: var(--terra-dark);
}

.showcase-label {
  display: block;
  margin-bottom: 5px;
  color: var(--olive);
  font-size: 0.61rem;
  font-weight: 750;
  letter-spacing: 0.12em;
}

.showcase-name {
  display: block;
  font-family: var(--serif);
  font-size: 1.24rem;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.showcase-description {
  display: none;
}

.showcase-mobile-benefit {
  min-height: 4.65em;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.showcase-preview {
  margin: 0;
  background: #e9e3d7;
  scroll-margin-top: calc(var(--promo-height) + 20px);
  scroll-margin-bottom: calc(var(--fixed-cta-space) + 20px);
}

.showcase-preview-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 16px 16px 0;
}

.showcase-preview-top > span {
  color: var(--olive-dark);
  font-size: 0.57rem;
  font-weight: 750;
  letter-spacing: 0.1em;
}

.showcase-toggle,
.showcase-page-button {
  min-height: 44px;
  border: 1px solid #bbb3a4;
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
}

.showcase-toggle {
  flex-shrink: 0;
  padding: 6px 9px;
  font-size: 0.72rem;
}

.showcase-toggle:hover,
.showcase-page-button:hover {
  background: var(--paper);
}

.showcase-stage {
  display: grid;
  position: relative;
  padding: 22px 28px 26px;
  place-items: center;
  perspective: 1400px;
  overflow: hidden;
}

.showcase-book {
  position: relative;
  width: min(100%, 320px);
  aspect-ratio: 595.5 / 841.5;
  background: var(--paper);
  transform: rotateY(-5deg) rotateZ(-1deg);
  box-shadow: 3px 3px 0 #e2dbce, 6px 6px 0 #faf7ef, 7px 7px 0 #cdc5b7,
    12px 20px 28px -12px rgba(54, 45, 34, 0.28);
}

.showcase-page {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--paper);
  transform-origin: left center;
}

.showcase-page.is-entering {
  animation: showcase-page-in 580ms cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

@keyframes showcase-page-in {
  from { opacity: 0; transform: translateX(10px) rotateY(-12deg); }
  to { opacity: 1; transform: translateX(0) rotateY(0); }
}

.showcase-loading {
  display: grid;
  position: absolute;
  inset: 0;
  place-items: center;
  padding: 24px;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

.showcase-caption {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 44px;
  align-items: center;
  padding: 0 16px 18px;
  gap: 8px;
  text-align: center;
}

.showcase-page-button {
  width: 44px;
  font-size: 1.2rem;
  scroll-margin-bottom: calc(var(--fixed-cta-space) + 20px);
}

.showcase-page-title {
  display: block;
  min-height: 2.6em;
  font-family: var(--serif);
  font-size: 0.98rem;
  line-height: 1.3;
}

.showcase-page-count {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.71rem;
  font-variant-numeric: tabular-nums;
}

.showcase-note {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.75rem;
  text-align: center;
}

.showcase-benefits {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 30px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
  color: var(--olive-dark);
  font-size: 0.82rem;
}

.showcase-benefits li::before {
  margin-right: 8px;
  color: var(--terra);
  content: "✓";
}

@media (min-width: 800px) {
  .showcase-grid { grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); gap: 56px; }
  .showcase-items { grid-template-columns: minmax(0, 1fr); }
  .showcase-item { min-height: 120px; padding: 19px 18px 20px 0; }
  .showcase-name { font-size: 1.75rem; }
  .showcase-description { display: block; margin-top: 9px; color: var(--muted); font-size: 0.94rem; line-height: 1.5; }
  .showcase-mobile-benefit { display: none; }
  .showcase-stage { padding: 26px 38px 30px; }
  .showcase-preview-top { padding: 18px 24px 0; }
  .showcase-preview-top > span { font-size: 0.62rem; }
  .showcase-caption { padding: 0 24px 20px; }
  .showcase-benefits { gap: 16px 38px; }
}

@media (prefers-reduced-motion: reduce) {
  .showcase-item::before { transition: none; }
  .showcase-page.is-entering { animation: none; }
  .showcase-book { transform: none; }
}