body {
  font-family: Arial, sans-serif;
  text-align: center;
  background: #f5f5f5;
  padding: 0;
  margin: 0;
}
#chatbox {
  width: 90%;
  max-width: 500px;
  margin: 20px auto;
  padding: 20px;
  background: #fff;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  border-radius: 10px;
}
#messages {
  height: 200px;
  overflow-y: auto;
  text-align: left;
  margin-bottom: 10px;
}
#userInput {
  width: 70%;
  padding: 10px;
}
button {
  padding: 10px;
}
#builder-area {
  margin: 20px auto;
  padding: 15px;
  border: 2px dashed #999;
  width: 90%;
  max-width: 600px;
  min-height: 150px;
}
#hologram-cursor {
  position: absolute;
  width: 20px;
  height: 20px;
  background: blue;
  border-radius: 50%;
  opacity: 0.6;
  pointer-events: none;
  transition: all 1s ease;
}