style.css

:root {
  font-family: 'Press Start 2P', cursive;
  line-height: 1.5;
  font-weight: 400;

  color-scheme: light dark;
  color: rgba(255, 255, 255, 0.87);
  background-color: #242424;
}

html, body {
  height: 100vh;
}

.grid {
  display: grid;
  grid-template-columns: 320px 280px;
  position: absolute;
  left: 400px;
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

canvas {
  border: 1px solid white;
}

.right-column {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

h1 {
  font-size: 3.2em;
  line-height: 1.1;
}

button {
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0.6em 1.2em;
  font-size: 1em;
  font-weight: 500;
  font-family: inherit;
  background-color: #1a1a1a;
  cursor: pointer;
  transition: border-color 0.25s;
}
button:hover {
  border-color: #646cff;
}