html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--pn-bg);
  color: var(--pn-fg);
  font-family: var(--pn-font-body);
}
canvas {
  position: absolute;
  inset: 0;
  display: block;
}
.head {
  position: absolute;
  left: 5vmin;
  top: 4vmin;
}
.head h1 {
  margin: 0;
  font: 700 5.4vmin var(--pn-font-display);
  letter-spacing: -0.02em;
}
.head p {
  margin: 1vmin 0 0;
  font-size: 2.6vmin;
  color: var(--pn-muted);
}
.panel {
  position: absolute;
  left: 50%;
  bottom: 4vmin;
  transform: translateX(-50%);
  display: flex;
  gap: 5vmin;
  padding: 2vmin 4vmin;
  border-radius: var(--pn-radius);
  background: rgba(255, 255, 255, 0.06);
  font-size: 2.6vmin;
}
.panel label {
  display: flex;
  align-items: center;
  gap: 1.6vmin;
  white-space: nowrap;
}
.panel b {
  min-width: 9vmin;
  color: var(--pn-accent);
  font-variant-numeric: tabular-nums;
}
.panel input {
  width: 22vmin;
  accent-color: var(--pn-accent);
  cursor: pointer;
}