body {
  margin: 0;
  font-family: sans-serif;
  background: linear-gradient(to bottom, #e0f7fa, #b2ebf2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
}
h1 {
  margin-bottom: 10px;
}
canvas {
  background-color: #ffffff;
  border: 4px solid #00796b;
  border-radius: 10px;
  display: none;
}
.score, .misses, .start-screen, .game-over {
  font-size: 1.5em;
  margin-top: 10px;
  text-align: center;
}
.button {
  padding: 10px 20px;
  background-color: #00796b;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  margin-top: 15px;
}
#startScreen, #gameOverScreen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}