html, body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    font-family: 'Courier New', monospace;
    background: black;
    color: #00ffee;
  }
  
  canvas#bg {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 0;
  }
  
  .content {
    position: absolute;
    z-index: 10;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    animation: float 4s infinite ease-in-out;
  }
  
  @keyframes float {
    0%, 100% { transform: translate(-50%, -50%) translateY(-10px); }
    50% { transform: translate(-50%, -50%) translateY(10px); }
  }
  
  h1 {
    font-size: 3em;
    letter-spacing: 0.3em;
    color: #ff00ff;
    text-shadow: 0 0 20px #0ff, 0 0 40px #f0f;
  }
  
  p {
    margin-top: 1em;
    color: #aaa;
    font-style: italic;
    animation: blink 3s infinite alternate;
  }
  
  @keyframes blink {
    0% { opacity: 0.5; }
    100% { opacity: 1; }
  }
  
  button {
    margin-top: 2em;
    padding: 1em 2em;
    background: transparent;
    border: 2px solid #00ffee;
    color: #ff00ff;
    font-size: 1.2em;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
  }
  
  button:hover {
    transform: scale(1.2) rotate(5deg);
    box-shadow: 0 0 20px #0ff;
  }
  
  .popup {
    position: fixed;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 0, 255, 0.8);
    color: white;
    padding: 1em 2em;
    border-radius: 10px;
    font-size: 1.3em;
    z-index: 20;
    transition: top 1s ease;
  }