body {
  font-family: Arial, sans-serif;
  background: #f3f4f6;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.chat-container {
  width: 400px;
  max-width: 90%;
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-log {
  padding: 15px;
  height: 400px;
  overflow-y: auto;
  border-bottom: 1px solid #e5e7eb;
}

.message {
  margin-bottom: 12px;
  padding: 8px 12px;
  border-radius: 16px;
  max-width: 80%;
}

.message.user {
  background-color: #d1fae5;
  align-self: flex-end;
}

.message.bot {
  background-color: #e5e7eb;
  align-self: flex-start;
}

.chat-input-container {
  display: flex;
  padding: 10px;
  border-top: 1px solid #e5e7eb;
}

#chat-input {
  flex-grow: 1;
  padding: 10px;
  border-radius: 20px;
  border: 1px solid #ccc;
  outline: none;
}

#send-button {
  margin-left: 10px;
  padding: 10px 16px;
  border: none;
  background-color: #2563eb;
  color: white;
  border-radius: 20px;
  cursor: pointer;
}