/* style.css */
html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #000;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
}

canvas {
  display: block;
  /* fill entire viewport */
  width: 100vw;
  height: 100vh;
  /* optional frame */
  border: 1px solid #444;
  box-shadow: 0 0 15px rgba(0, 180, 255, 0.3);
}

#score-board {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 16px;
  font-size: 18px;
  color: #fff;
  z-index: 10;
  text-shadow: 0 0 4px rgba(0, 180, 255, 0.7);
}

#game-over {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 32px;
  font-weight: bold;
  color: #ff4444;
  text-align: center;
  z-index: 20;
  background-color: rgba(10,10,20,0.85);
  padding: 20px 30px;
  border-radius: 12px;
  border: 1px solid #ff6666;
  text-shadow: 0 0 8px #ff0000;
}

#game-over button {
  margin-top: 16px;
  padding: 8px 20px;
  font-size: 16px;
  background-color: #44ccff;
  color: #001f3f;
  border: none;
  border-radius: 6px;
}
#game-over button:hover {
  background-color: #88eeff;
}