* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: #1a1a1a;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.game-container {
  text-align: center;
  position: relative;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.scoreboard {
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

#gameCanvas {
  background-color: #262626;
  width: 600px;
  height: 600px;
  border: 2px solid #444;
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10;
}

.message {
  background-color: #333;
  padding: 2rem;
  border-radius: 10px;
  max-width: 300px;
}

.controls {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: #aaa;
}

button {
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  background-color: #5c4caf;
  color: white;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: #45a049;
}

.hidden {
  display: none;
}