/* Interactive figures: a canvas, a row or two of controls (a slider, small-caps buttons that
   act as a group of toggles), and a readout. The caption is a margin note on wide screens
   (css/07-margin.css, .fig figcaption). The script of each figure lives with its post. */

.applet { margin: 0; }
.applet canvas {
  display: block;
  width: 100%;
  max-width: 100%;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--rule);
  background: var(--bg);
  touch-action: none;
  cursor: grab;
}
.applet canvas:active { cursor: grabbing; }
.applet canvas:focus-visible { outline: 2px solid var(--ref); outline-offset: 2px; }

.applet-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem 1.2rem;
  margin-top: 0.55rem;
  font-size: 0.9rem;
}
.applet-controls + .applet-controls { margin-top: 0.3rem; }

.applet-buttons { display: flex; flex-wrap: wrap; gap: 0.2rem 1rem; }
.applet-buttons button {
  font: inherit;
  font-variant: small-caps;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  background: none;
  border: 0;
  padding: 0;
  color: var(--muted);
  cursor: pointer;
}
.applet-buttons button:hover { color: var(--fg); }
.applet-buttons button[aria-pressed="true"] {
  color: var(--fg);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}
.applet-buttons button:focus-visible { outline: 2px solid var(--ref); outline-offset: 2px; }

.applet-slider { display: inline-flex; align-items: center; gap: 0.5rem; }
.applet-slider input { width: 13rem; max-width: 50vw; accent-color: var(--fg); }
.applet-slider output { min-width: 2.6em; font-variant-numeric: tabular-nums; }

.applet-readout { color: var(--muted); font-variant-numeric: tabular-nums; }
.applet-readout sup { font-size: 0.7em; line-height: 0; }

@media (max-width: 560px) {
  .applet-slider input { width: 9rem; }
  .applet-buttons { gap: 0.15rem 0.7rem; }
}
@media print {
  .applet-controls { display: none; }
}