body {
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: #ffe4e1; 
  font-family: 'Arial', sans-serif;
}

canvas {
  border: 2px solid #ff69b4;
  background-color: #fff0f5;
}

#heartPopup {
  position: absolute;     
  top: 50%; 
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(255, 255, 255, 0.95);
  border: 3px solid #ff1493;
  padding: 20px 30px;
  border-radius: 15px;
  text-align: center;
  z-index: 1000;           
  display: none;          
}

#heartPopup button {
  margin-top: 15px;
  padding: 5px 15px;
  border-radius: 10px;
  background-color: #ff69b4;
  border: none;
  color: white;
  font-weight: bold;
  cursor: pointer;
}

#mobile-controls button {
  width: 40px;     
  height: 40px;       
  font-size: 20px;   
  margin: 5px;       
  border-radius: 10px;
  background-color: #ff69b4; 
  color: #fff;
  border: none;
  outline: none;
}

#mobile-controls button:active {
  background-color: #ff1493; 
}