.canvas {
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  border: 2px solid #fff;
  border-radius: 15px;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

body {
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  color: #fff;
  font-family: 'Arial', sans-serif;
  background: linear-gradient(to right, #4f00bc, #29abe2);
  animation: bgAnimation 10s ease infinite;
}

@keyframes bgAnimation {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.scoreboard {
  margin-bottom: 20px;
  font-size: 24px;
  color: #fff;
  text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.7);
}

.button {
  background-color: #29abe2;
  border: none;
  border-radius: 10px;
  color: white;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.3s;
}

.button:hover {
  background-color: #4f00bc;
  transform: scale(1.05);
}

.button:focus {
  outline: none;
}

@media (max-width: 600px) {
  .scoreboard {
    font-size: 20px;
  }
  .button {
    font-size: 14px;
    padding: 8px 16px;
  }
}