body {
      margin: 0;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      background: #000;
    }
    canvas {
      background: #fff;
      border: 2px solid #000;
    }
  
/* --- Start Screen Overlay --- */
#startScreen {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 600px;
  background: url('start_bg.png') center/cover no-repeat;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: 40px;
  align-items: center;
  color: #ffffff;
  font-family: sans-serif;
  z-index: 10;
}
#startScreen h1 { display:none; }
#syllableOptions {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 8px 16px;
  margin-bottom: 18px;
}
#syllableOptions label { font-size: 18px; cursor: pointer; color: #004080;}
#startButton {
  padding: 10px 24px;
  font-size: 20px;
  cursor: pointer;
  border: none;
  border-radius: 6px;
}
#startError { color: #00008B; height: 20px; margin-top: 10px; font-size: 16px; }
/* Pause button styling */
#pauseButton {
  display: none;
  position: absolute;
  top: 10px;
  right: 10px;
  background: transparent;
  border: none;
  font-size: 32px;
  cursor: pointer;
  z-index: 10;
}

/* Restart button styling */
#restartButton {
  display: none;
  position: absolute;
  top: 60px;
  right: 10px;
  background: transparent;
  border: none;
  font-size: 32px;
  cursor: pointer;
  z-index: 10;
}