* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #1e1e1e;
  color: #fff;
  font-family: sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px;
}

h1 {
  margin-bottom: 10px;
  font-size: 24px;
}

#toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
}

#colorPicker {
  width: 40px;
  height: 40px;
  border: none;
  cursor: pointer;
}

button {
  padding: 10px 15px;
  font-size: 14px;
  cursor: pointer;
  background: #444;
  color: white;
  border: none;
  border-radius: 4px;
}

button:hover {
  background: #666;
}

canvas {
  border: 1px solid #ccc;
  image-rendering: pixelated;
  cursor: crosshair;
  touch-action: none;
}