.refraction-layers-lab,
.refraction-modes-lab {
  box-sizing: border-box;
  width: min(1760px, 100%);
  margin: 0.2rem auto;
  padding: 0.55rem 0.7rem 0.35rem;
  border: 1px solid rgba(126, 189, 224, 0.36);
  border-radius: 0.35rem;
  background: #08131e;
  color: #edf6fc;
  font: 29px/1.25 system-ui, sans-serif;
  container-type: inline-size;
}

/* Text follows the lab width, as the SVG labels do: 29px on a slide. */
.refraction-layers-lab__controls,
.refraction-modes-lab__controls,
.refraction-layers-lab__readout,
.refraction-modes-lab__readout {
  font-size: clamp(14px, 1.7cqi, 29px);
}

.refraction-layers-lab *,
.refraction-modes-lab * {
  box-sizing: border-box;
}

.refraction-layers-lab__controls,
.refraction-modes-lab__controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.4rem;
  padding: 0.25rem 0.25rem 0.65rem;
}

.refraction-layers-lab__controls label,
.refraction-modes-lab__controls label {
  display: block;
  color: #dcecf6;
}

.refraction-layers-lab__controls label > span,
.refraction-modes-lab__controls label > span {
  float: right;
  color: #ffd386;
  font-variant-numeric: tabular-nums;
}

/* On a slide MathJax puts its spans straight into the label: keep the formula
   inline with the label text, and float only the value. */
.reveal .refraction-layers-lab__controls label > .MathJax_Preview,
.reveal .refraction-modes-lab__controls label > .MathJax_Preview,
.reveal .refraction-layers-lab__controls label > .mjx-chtml,
.reveal .refraction-modes-lab__controls label > .mjx-chtml {
  display: inline-block;
  float: none;
  color: inherit;
  font-variant-numeric: normal;
}

.refraction-layers-lab input,
.refraction-modes-lab input {
  display: block;
  width: 100%;
  margin: 0.45rem 0 0;
  accent-color: #73d6eb;
}

.refraction-layers-lab svg,
.refraction-modes-lab svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
  font: 20px/1.2 system-ui, sans-serif;
}

.refraction-layers-lab svg text,
.refraction-modes-lab svg text {
  fill: #e5eff7;
}

.refraction-layers-lab__medium {
  fill: rgba(255, 203, 114, 0.11);
}

.refraction-layers-lab__boundary,
.refraction-layers-lab__axis,
.refraction-modes-lab__axis {
  stroke: rgba(221, 237, 248, 0.46);
  stroke-width: 2;
}

.refraction-layers-lab__vacuum,
.refraction-layers-lab__key-vacuum {
  fill: none;
  stroke: #94aabd;
  stroke-width: 3;
  stroke-dasharray: 10 8;
}

.refraction-layers-lab__wave,
.refraction-layers-lab__key-medium {
  fill: none;
  stroke: #6ee0ec;
  stroke-width: 5;
}

.refraction-modes-lab__locus {
  fill: none;
  stroke: rgba(255, 211, 134, 0.42);
  stroke-width: 2;
  stroke-dasharray: 7 7;
}

.refraction-modes-lab__first,
.refraction-modes-lab__second,
.refraction-modes-lab__sum {
  stroke-width: 6;
  stroke-linecap: round;
}

.refraction-modes-lab__first {
  stroke: #6ee0ec;
}

.refraction-modes-lab__first-head {
  fill: #6ee0ec;
}

.refraction-modes-lab__second {
  stroke: #ffd386;
}

.refraction-modes-lab__second-head {
  fill: #ffd386;
}

.refraction-modes-lab__sum {
  stroke: #ff8f7a;
  stroke-width: 9;
  opacity: 0.85;
}

.refraction-modes-lab__sum-head {
  fill: #ff8f7a;
}

.refraction-modes-lab svg .refraction-modes-lab__first-label,
.refraction-modes-lab svg .refraction-modes-lab__second-label,
.refraction-modes-lab svg .refraction-modes-lab__sum-label {
  font-weight: 700;
}

.refraction-modes-lab svg .refraction-modes-lab__first-label {
  fill: #6ee0ec;
}

.refraction-modes-lab svg .refraction-modes-lab__second-label {
  fill: #ffd386;
}

.refraction-modes-lab svg .refraction-modes-lab__sum-label {
  fill: #ff8f7a;
}

.refraction-modes-lab__origin {
  fill: #e5eff7;
}

.refraction-modes-lab__curve {
  fill: none;
  stroke: #6ee0ec;
  stroke-width: 5;
}

.refraction-modes-lab__marker {
  fill: #ffd386;
}

.refraction-layers-lab__readout,
.refraction-modes-lab__readout {
  margin: 0.15rem 0 0;
  padding: 0.45rem 0.6rem;
  color: #e7f1f8;
  text-align: center;
}

.refraction-layers-lab__readout span,
.refraction-modes-lab__readout [data-weight-value],
.refraction-modes-lab__readout [data-probability-value] {
  color: #ffd386;
  font-variant-numeric: tabular-nums;
}

.refraction-modes-lab__nowrap {
  white-space: nowrap;
}

/* Narrow screens: applet pages only; a Reveal slide is scaled as a whole. */
@media (max-width: 900px) {
  body:not(.reveal-viewport) .refraction-layers-lab__controls,
  body:not(.reveal-viewport) .refraction-modes-lab__controls {
    grid-template-columns: 1fr;
    gap: 0.7rem;
  }
  body:not(.reveal-viewport) .refraction-layers-lab svg,
  body:not(.reveal-viewport) .refraction-modes-lab svg {
    font-size: 28px;
  }
}

@media (max-width: 560px) {
  body:not(.reveal-viewport) .refraction-layers-lab,
  body:not(.reveal-viewport) .refraction-modes-lab {
    padding: 0.4rem 0.35rem 0.25rem;
  }
  body:not(.reveal-viewport) .refraction-layers-lab svg,
  body:not(.reveal-viewport) .refraction-modes-lab svg {
    font-size: 46px;
  }
}