.piece.chapter {
  height: 100svh;
  height: 100dvh;
  min-height: 100svh;
  min-height: 100dvh;
}

.chapter-rail {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  z-index: 35;
  height: 3px;
  background: color-mix(in srgb, var(--color-cream) 22%, transparent);
  pointer-events: none;
  opacity: 0;
  transition: opacity 400ms ease;
}

.chapter-rail.is-active {
  opacity: 1;
}

.chapter-rail-fill {
  height: 100%;
  width: 0%;
  background: var(--color-accent);
  transition: width 450ms var(--ease-out);
}

.chapter-rail-meta {
  position: fixed;
  top: calc(var(--nav-height) + 0.85rem);
  right: var(--space-4);
  z-index: 35;
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--color-cream) 72%, transparent);
  opacity: 0;
  transition: opacity 400ms ease;
  pointer-events: none;
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.35);
}

.chapter-rail-meta.is-active {
  opacity: 1;
}

@media (min-width: 768px) {
  .chapter-rail-meta {
    right: var(--space-7);
  }
}

.work-intro {
  display: flex;
  align-items: flex-end;
  background: var(--color-cream);
  padding: calc(var(--nav-height) + var(--space-8)) var(--space-4) var(--space-8);
  min-height: auto;
}

.work-intro .section-title {
  max-width: 12ch;
  font-weight: 300;
}

@media (min-width: 768px) {
  .work-intro {
    padding-inline: var(--space-7);
  }
}

.piece {
  position: relative;
  overflow: hidden;
  color: var(--color-cream);
  background: var(--color-charcoal);
}

.piece-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.piece-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out);
}

.piece[data-focus="top"] .piece-media img {
  object-position: center 28%;
}

.piece[data-focus="upper"] .piece-media img {
  object-position: center 35%;
}

.piece[data-focus="center"] .piece-media img {
  object-position: center 45%;
}

.piece[data-focus="lower"] .piece-media img {
  object-position: center 58%;
}

.piece.is-inview .piece-media img {
  opacity: 1;
}

.piece-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      to top,
      rgba(22, 22, 21, 0.78) 0%,
      rgba(22, 22, 21, 0.28) 38%,
      rgba(22, 22, 21, 0.08) 62%,
      rgba(22, 22, 21, 0.12) 100%
    );
  pointer-events: none;
}

.piece-meta {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: var(--space-6) var(--space-4) var(--space-7);
  max-width: 36rem;
}

.piece-index {
  display: block;
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--color-cream) 62%, transparent);
  margin-bottom: var(--space-2);
  opacity: 0;
  transform: translateY(0.65rem);
  transition:
    opacity var(--duration) var(--ease-out),
    transform var(--duration) var(--ease-out);
}

.piece-title {
  font-size: var(--text-xl);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-2);
  opacity: 0;
  transform: translateY(0.75rem);
  transition:
    opacity var(--duration) var(--ease-out) 70ms,
    transform var(--duration) var(--ease-out) 70ms;
}

.piece-note {
  font-size: var(--text-sm);
  font-weight: 300;
  line-height: 1.45;
  color: color-mix(in srgb, var(--color-cream) 78%, transparent);
  max-width: 34ch;
  opacity: 0;
  transform: translateY(0.75rem);
  transition:
    opacity var(--duration) var(--ease-out) 130ms,
    transform var(--duration) var(--ease-out) 130ms;
}

.piece.is-inview .piece-index,
.piece.is-inview .piece-title,
.piece.is-inview .piece-note {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 768px) {
  .piece-meta {
    padding: var(--space-8) var(--space-7);
    max-width: 28rem;
  }
}

@media (min-width: 1024px) {
  .piece-meta {
    padding: var(--space-9) var(--space-8);
  }
}

@media (prefers-reduced-motion: reduce) {
  .piece-media img,
  .piece-index,
  .piece-title,
  .piece-note {
    transition: none;
    opacity: 1;
    transform: none;
  }
}