/* Chapter 10: Stereo and Two-View Geometry */

.st-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

.st-pair figure {
  margin: 0;
}

.st-pair canvas,
.st-wide,
.st-chart,
.st-3d {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  background: #111;
}

.st-pair canvas {
  touch-action: none;
  cursor: crosshair;
}

.st-pair figcaption {
  margin-top: 0.3rem;
  font-size: 0.85rem;
  opacity: 0.7;
  text-align: center;
}

.st-chart {
  margin-top: 0.7rem;
  background: transparent;
  border: 1px solid rgba(207, 185, 125, 0.25);
}

.st-3d {
  touch-action: none;
  cursor: grab;
  background: rgba(207, 185, 125, 0.06);
}

.st-matrix {
  margin: 0.6rem 0 0;
  padding: 0.6rem 0.8rem;
  overflow-x: auto;
  border-radius: 10px;
  background: rgba(207, 185, 125, 0.08);
  font-size: 0.8rem;
  line-height: 1.5;
  white-space: pre;
}

/* Top-down disparity drawing */
.st-plane { stroke: currentColor; stroke-opacity: 0.4; stroke-width: 2; stroke-dasharray: 6 5; }
.st-cam { fill: currentColor; fill-opacity: 0.8; }
.st-ray { stroke: #cfb97d; stroke-width: 2; }
.st-hit { fill: #ff6b6b; }
.st-point { fill: #2f8f5b; }
.st-base { stroke: currentColor; stroke-width: 2; stroke-opacity: 0.6; }
.st-label { fill: currentColor; font-family: "Nunito Sans", sans-serif; font-size: 14px; font-weight: 700; text-anchor: middle; }
.st-label--left { text-anchor: start; }
.st-small { fill: currentColor; opacity: 0.65; font-size: 12px; text-anchor: middle; }
.st-plane + .st-small { text-anchor: start; }

@media (max-width: 600px) {
  .st-pair {
    grid-template-columns: 1fr;
  }
}

.st-plot {
  background: rgba(207, 185, 125, 0.06);
}