.drift-wall {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  perspective: var(--dw-perspective, 1200px);
  perspective-origin: 50% 42%;
  --dw-tile-w: 240px;
  --dw-tile-h: 158px;
  --dw-gap: 18px;
  --dw-radius: 14px;
  --dw-lift: 64px;
  --dw-dim: 0.55;
  --dw-gray: 0;
  --dw-overlay: #060010;
  /* Soft dissolve distance at top + bottom (page bg shows through) */
  --dw-fade-y: 28%;
  -webkit-mask-image: linear-gradient(
    to bottom,
    transparent 0%,
    #000 var(--dw-fade-y),
    #000 calc(100% - var(--dw-fade-y)),
    transparent 100%
  );
  mask-image: linear-gradient(
    to bottom,
    transparent 0%,
    #000 var(--dw-fade-y),
    #000 calc(100% - var(--dw-fade-y)),
    transparent 100%
  );
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
}

/* Extra soft dissolve into white page — longer than mask alone */
.drift-wall::before,
.drift-wall::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  z-index: 4;
  pointer-events: none;
}

.drift-wall::before {
  top: 0;
  height: 36%;
  background: linear-gradient(
    to bottom,
    #ffffff 0%,
    rgba(255, 255, 255, 0.75) 28%,
    rgba(255, 255, 255, 0) 100%
  );
}

.drift-wall::after {
  bottom: 0;
  height: 40%;
  background: linear-gradient(
    to top,
    #ffffff 0%,
    rgba(255, 255, 255, 0.82) 34%,
    rgba(255, 255, 255, 0) 100%
  );
}

.drift-wall__plane {
  position: absolute;
  top: 50%;
  left: 50%;
  display: flex;
  flex-direction: row;
  transform-style: preserve-3d;
  cursor: pointer;
  transform-origin: 50% 50%;
  will-change: transform;
}

.drift-wall__col {
  position: relative;
  width: calc(var(--dw-tile-w) + var(--dw-gap));
  transform-style: preserve-3d;
}

.drift-wall__track {
  display: flex;
  flex-direction: column;
  will-change: transform;
  transform-style: preserve-3d;
}

.drift-wall__tile {
  position: relative;
  display: block;
  width: 100%;
  height: calc(var(--dw-tile-h) + var(--dw-gap));
  flex: 0 0 auto;
  outline: none;
  transform-style: preserve-3d;
}

.drift-wall__inner {
  position: absolute;
  inset: calc(var(--dw-gap) / 2);
  display: block;
  border-radius: var(--dw-radius);
  overflow: hidden;
  background: #0b0b12;
  opacity: var(--dw-dim);
  transform: translateZ(0);
  pointer-events: none;
  transition:
    transform 0.42s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.42s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.42s cubic-bezier(0.22, 1, 0.36, 1);
}

.drift-wall__tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(var(--dw-gray)) saturate(0.92);
  transition: filter 0.42s cubic-bezier(0.22, 1, 0.36, 1);
  user-select: none;
  -webkit-user-drag: none;
}

.drift-wall__overlay {
  position: absolute;
  inset: 0;
  background: var(--dw-overlay);
  opacity: 0.42;
  pointer-events: none;
  transition: opacity 0.42s cubic-bezier(0.22, 1, 0.36, 1);
}

.drift-wall__tile.is-active .drift-wall__inner,
.drift-wall__tile:focus-visible .drift-wall__inner {
  opacity: 1;
  transform: translateZ(var(--dw-lift));
  box-shadow: 0 24px 60px -18px rgba(0, 0, 0, 0.7);
}

.drift-wall__tile.is-active img,
.drift-wall__tile:focus-visible img {
  filter: grayscale(0) saturate(1.05);
}

.drift-wall__tile.is-active .drift-wall__overlay,
.drift-wall__tile:focus-visible .drift-wall__overlay {
  opacity: 0;
}

.drift-wall__tile:focus-visible .drift-wall__inner {
  box-shadow:
    0 24px 60px -18px rgba(0, 0, 0, 0.7),
    0 0 0 2px rgba(255, 255, 255, 0.9);
}

@media (prefers-reduced-motion: reduce) {
  .drift-wall__plane,
  .drift-wall__track {
    will-change: auto;
  }
}