body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #1a1a1a;
  color: #fff;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

#game-container {
  position: relative;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
  border-radius: 8px;
  overflow: hidden;
}

canvas {
  background-color: #000;
  display: block;
  cursor: none; /* Hide cursor while playing */
}

#ui-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

#score-display {
  position: absolute;
  top: 20px;
  left: 20px;
  font-size: 24px;
  font-weight: bold;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

#game-over-screen {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  background-color: rgba(0, 0, 0, 0.8);
  padding: 40px;
  border-radius: 12px;
  border: 2px solid #ff4757;
  pointer-events: auto;
  min-width: 250px;
}

#game-over-screen h1 {
  color: #ff4757;
  margin-bottom: 10px;
}

#restart-button {
  background-color: #2ed573;
  color: white;
  border: none;
  padding: 12px 24px;
  font-size: 18px;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s;
  margin-top: 20px;
}

#restart-button:hover {
  background-color: #7bed9f;
}

.hidden {
  display: none !important;
}