body {
  font-family: 'Arial', sans-serif;
  background: #0d0d0d;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

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

.bulb-line {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin: 30px 0;
}

.bulb {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #444;
  box-shadow: 0 0 10px #444;
  transition: all 0.2s;
}

.bulb.active {
  background: #ffeb3b;
  box-shadow: 0 0 20px #ffeb3b, 0 0 40px #ffeb3b, 0 0 60px #ffd700;
}

.controls button {
  padding: 10px 20px;
  margin: 5px;
  cursor: pointer;
  font-weight: bold;
  border-radius: 5px;
  border: none;
  background: #333;
  color: #fff;
  transition: 0.2s;
}

.controls button:hover {
  background: #555;
}

#score {
  font-size: 1.2rem;
  margin-top: 10px;
}

#message {
  margin-top: 10px;
  font-size: 1rem;
  color: #ff5252;
}