.game-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 20px;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  min-height: 100vh;
  padding: 2rem;
}

#gameCanvas {
  border: 2px solid rgba(76, 175, 80, 0.3);
  background-color: #000;
  border-radius: 12px;
  box-shadow: 0 0 30px rgba(76, 175, 80, 0.2),
              inset 0 0 15px rgba(76, 175, 80, 0.1);
}

#score {
  font-size: 24px;
  color: #4CAF50;
  margin-bottom: 10px;
  font-family: Arial, sans-serif;
}

.controls {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

.game-btn {
  padding: 12px 30px;
  background: linear-gradient(145deg, #4CAF50, #45a049);
  border: none;
  border-radius: 8px;
  color: white;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.game-btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  transition: transform 0.5s ease;
}

.game-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.game-btn:active::after {
  transform: translate(-50%, -50%) scale(1);
  opacity: 0;
}

.game-btn:hover {
  background-color: #45a049;
}