body {
  font-family: Arial, sans-serif;
  background-color: #f8f8f8;
  color: #333;
  margin: 0;
}

header nav {
  background-color: #1a3b5d;
  color: white;
  display: flex;
  justify-content: space-between;
  padding: 1em;
}

.logo {
  font-size: 1.2em;
  font-weight: bold;
}

.chat-btn {
  background-color: #ff8c00;
  color: white;
  border: none;
  padding: 0.5em 1em;
  cursor: pointer;
}

.headline {
  text-align: center;
  padding: 1em;
}

.chat-container {
  max-width: 600px;
  margin: 2em auto;
  background: white;
  padding: 1em;
  border-radius: 10px;
}

#chat-box {
  min-height: 300px;
  margin-bottom: 1em;
  overflow-y: auto;
}

.user-msg {
  background-color: #ff8c00;
  color: white;
  padding: 0.5em;
  border-radius: 10px;
  text-align: right;
  margin: 0.5em 0;
}

.bot-msg {
  background-color: #1a3b5d;
  color: white;
  padding: 0.5em;
  border-radius: 10px;
  text-align: left;
  margin: 0.5em 0;
}

#chat-form {
  display: flex;
  gap: 0.5em;
}

#user-input {
  flex: 1;
  padding: 0.5em;
  border: 1px solid #ccc;
  border-radius: 5px;
}

footer {
  background-color: #1a3b5d;
  color: white;
  text-align: center;
  padding: 1em;
}