/* Decision matrix 3D */
.matrix3d-stage {
  display: grid;
  min-height: 74vh;
  grid-template-columns: minmax(280px, 0.56fr) minmax(320px, 1fr);
  gap: clamp(24px, 6vw, 78px);
  align-items: center;
  overflow: hidden;
  padding: 32px max(16px, calc((100vw - 1180px) / 2));
  perspective: 1200px;
}

.matrix3d-lab {
  display: grid;
  min-height: clamp(440px, 62vw, 620px);
  place-items: center;
  perspective: 1200px;
}

.matrix3d-space {
  position: relative;
  width: min(82vw, 620px);
  aspect-ratio: 1.08;
  border: 1px solid rgba(17, 19, 21, 0.15);
  border-radius: 8px;
  background:
    linear-gradient(rgba(17, 19, 21, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 19, 21, 0.05) 1px, transparent 1px),
    var(--paper);
  background-size: 32px 32px;
  box-shadow: 0 28px 76px rgba(17, 19, 21, 0.14);
  transform-style: preserve-3d;
  will-change: transform;
}

.matrix3d-axis {
  position: absolute;
  background: rgba(17, 19, 21, 0.18);
}

.matrix3d-axis:nth-child(1) {
  left: 12%;
  right: 12%;
  top: 50%;
  height: 2px;
}

.matrix3d-axis:nth-child(2) {
  top: 12%;
  bottom: 12%;
  left: 50%;
  width: 2px;
}

.matrix3d-card {
  position: absolute;
  display: grid;
  width: min(38vw, 190px);
  min-height: 128px;
  align-content: space-between;
  border: 1px solid rgba(17, 19, 21, 0.14);
  border-radius: 8px;
  background: linear-gradient(135deg, var(--tone), rgba(255, 255, 255, 0.74));
  box-shadow: 0 20px 50px rgba(17, 19, 21, 0.14);
  padding: 14px;
  transform-style: preserve-3d;
  will-change: transform, opacity;
}

.matrix3d-card small {
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

.matrix3d-card strong {
  font-size: clamp(22px, 4vw, 38px);
  line-height: 0.92;
  text-transform: uppercase;
}

@media (max-width: 840px) {
  .matrix3d-stage {
    grid-template-columns: 1fr;
  }

  .matrix3d-space {
    width: min(88vw, 460px);
  }

  .matrix3d-card {
    width: min(48vw, 170px);
  }
}