/* ==========================================================================
   AURORA — Scroll composition
   ========================================================================== */

/* Items che entrano in sequenza */
[data-compose-item] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 560ms var(--ease-out), transform 560ms var(--ease-out);
  transition-delay: calc(var(--compose-delay, 0) * 1ms);
}

[data-compose-item].is-composed {
  opacity: 1;
  transform: translateY(0);
}

[data-compose-item="left"] {
  transform: translateX(-40px);
}
[data-compose-item="left"].is-composed { transform: translateX(0); }

[data-compose-item="right"] {
  transform: translateX(40px);
}
[data-compose-item="right"].is-composed { transform: translateX(0); }

[data-compose-item="scale"] {
  transform: scale(0.88);
}
[data-compose-item="scale"].is-composed { transform: scale(1); }

/* Stack — immagini sovrapposte che si separano */
[data-compose-stack] {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}

[data-compose-layer] {
  position: absolute;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  will-change: transform, opacity;
  transition: box-shadow var(--duration-base) var(--ease-premium);
}

[data-compose-stack] [data-compose-layer]:nth-child(1) {
  width: 72%;
  z-index: 3;
}
[data-compose-stack] [data-compose-layer]:nth-child(2) {
  width: 64%;
  z-index: 2;
  top: 8%;
}
[data-compose-stack] [data-compose-layer]:nth-child(3) {
  width: 56%;
  z-index: 1;
  top: 14%;
}

[data-compose-layer] img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  display: block;
}

/* Progress timeline legata allo scroll */
[data-compose-progress] {
  position: relative;
}

.compose-progress__track {
  position: sticky;
  top: 80px;
  height: 3px;
  background: var(--color-border);
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-12);
  overflow: hidden;
  z-index: 2;
}

.compose-progress__fill {
  height: 100%;
  width: 100%;
  background: var(--color-accent);
  transform-origin: left center;
  transform: scaleX(0);
  border-radius: inherit;
}

.compose-progress__steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-24);
}

[data-compose-step] {
  opacity: 0.35;
  transform: translateY(16px);
  transition: opacity 400ms ease, transform 400ms ease;
  padding-left: var(--space-8);
  border-left: 2px solid var(--color-border);
}

[data-compose-step].is-active {
  opacity: 1;
  transform: translateY(0);
  border-left-color: var(--color-accent);
}

/* Linee SVG che si disegnano */
[data-compose-lines] line,
[data-compose-lines] path {
  stroke: var(--color-accent);
}

/* Three.js canvas */
.three-canvas {
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
  pointer-events: none;
}

[data-three-scene] {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

[data-three-scene="interactive"] {
  pointer-events: auto;
}

@media (prefers-reduced-motion: reduce) {
  [data-compose-item],
  [data-compose-step] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .production-process [data-compose-step] {
    opacity: 1;
  }

  .production-process__rail-item,
  .production-step__content,
  .production-step__marker::after {
    transition: none;
  }
}