body {
  font-family: sans-serif;
  background: #1a1a1a;
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

#chat-container {
  width: 90%;
  max-width: 600px;
  background: #2a2a2a;
  border-radius: 8px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  height: 90vh;
}

#chat-window {
  flex-grow: 1;
  overflow-y: auto;
  padding: 10px;
  background-color: #111;
  border-radius: 5px;
  margin-bottom: 10px;
}

#chat-window div {
  margin-bottom: 8px;
}

#chat-input {
  display: flex;
}

#user-input {
  flex-grow: 1;
  padding: 10px;
  border: none;
  border-radius: 5px 0 0 5px;
  font-size: 1em;
}

button {
  padding: 10px;
  border: none;
  background: #00aaff;
  color: white;
  border-radius: 0 5px 5px 0;
  cursor: pointer;
}