html, body {
  margin: 0;
  height: 100%;
  background: #0d0e12;
  color: #e8e9ee;
  font-family: system-ui, sans-serif;
  overflow: hidden;
}

main {
  display: grid;
  place-items: center;
  height: 100%;
  height: 100dvh;
}

canvas {
  display: block;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  image-rendering: auto;
}

#errors {
  position: fixed;
  left: 8px;
  right: 8px;
  bottom: 8px;
  max-height: 40vh;
  overflow: auto;
  margin: 0;
  padding: 10px 12px;
  background: #3b1219ee;
  border: 1px solid #e5534b;
  border-radius: 6px;
  font: 13px/1.4 ui-monospace, monospace;
  white-space: pre-wrap;
}