:root {
  color-scheme: light dark;
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100vh;
  font-family: Helvetica, Arial, sans-serif;
}

canvas {
  background-color: white;
  height: 100%;
  width: auto;
  max-height: 768px;
  margin: 0rem 1rem 1rem 1rem;
  image-rendering: pixelated;
  border: 1px solid #333;
  cursor: crosshair;
  aspect-ratio: 4 / 3;
  &.dark-mode-canvas {
    filter: invert(1) hue-rotate(180deg);
  }
}

#toolbar {
  margin: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

#toolbar button {
  cursor: pointer;
  height: 2rem;
  width: 2rem;
  border: 1px solid #ccc;
  background-color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

#toolbar button.active {
  background-color: lightgray;
}

@media screen and (prefers-color-scheme: dark) {
  #toolbar button {
    border: 1px solid #555;
    background-color: #333;
    color: white;
  }

  #toolbar button.active {
    background-color: gray;
  }
}

#toolbar button.color-button {
  border: none;
  cursor: pointer;
}

.spacer {
  background-color: #333;
  width: 1px;
  height: 24px;
}