body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #f0f4ff, #ffecec);
}

.page {
  text-align: center;
  padding-top: 20px;
}

.title {
  margin: 0;
  font-size: 28px;
  letter-spacing: 1px;
}

.subtitle {
  margin-top: 5px;
  margin-bottom: 20px;
  color: #555;
}


#game-area {
  display: flex;
  justify-content: center;
}


#game-area canvas {
  border-radius: 14px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  border: 1px solid #ddd;
}


#game-over-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
}

.overlay-content {
  background: #ffffff;
  padding: 22px 32px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  animation: pop 0.3s ease-out;
}

.overlay-content h2 {
  margin-top: 0;
  margin-bottom: 8px;
}

.overlay-content p {
  margin: 4px 0;
}

@keyframes pop {
  0% { transform: scale(0.8); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}