* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  body {
    font-family: Arial, sans-serif;
  }
  
  #game-container {
    position: relative;
    overflow: hidden;
    width: 100vw;
    height: 100vh;
    background: #a7d7c5; /* initial background */
  }
  
  #cat {
    position: absolute;
    bottom: 20px;
    left: 50px;
    font-size: 3rem;
    transition: bottom 0.1s;
  }
  
  /* Style for dynamically created cactuses */
  .cactus {
    position: absolute;
    bottom: 20px;
    font-size: 3rem;
  }
  
  #timer {
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 1.5rem;
    color: #333;
  }
  
  #scoreboard {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 1.5rem;
    color: #333;
    text-align: right;
  }