body {
  margin: 0;
  background: #0e0e0e;
  color: white;
  font-family: Arial, sans-serif;

  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.chat-container {
  width: 420px;
  background: #1a1a1a;
  border-radius: 12px;
  padding: 15px;
  box-shadow: 0 0 20px rgba(0,0,0,0.5);
}

h2 {
  text-align: center;
  margin-top: 0;
}

#chat {
  height: 300px;
  overflow-y: auto;
  border: 1px solid #333;
  padding: 10px;
  margin-bottom: 10px;
  border-radius: 6px;
}

.message {
  margin-bottom: 6px;
}

.user {
  color: #5fd1ff;
}

.bot {
  color: #7cff7a;
}

.input-row {
  display: flex;
  gap: 5px;
}

input {
  flex: 1;
  padding: 8px;
  border-radius: 6px;
  border: none;
  outline: none;
}

button {
  padding: 8px 12px;
  border-radius: 6px;
  border: none;
  background: #444;
  color: white;
  cursor: pointer;
}

button:hover {
  background: #666;
}