body {
            font-family: "Roboto", sans-serif;
            margin: 0;
            padding: 0;
            background-color: #ffff;
            color: #333;
            display: flex;
            flex-direction: column;
            height: 100vh;
            justify-content: space-between;
        }
        header, footer {
            background-color: #003366;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            gap: 10px;
        }
        header h1, footer h1 {
            font-size: 1em;
            margin: 0;
        }
        .logo {
            width: 30px;
            height: 30px;
        }
        main {
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 10px;
        }
        .chat-container {
            width: 95%;
            max-width: 400px;
            background: white;
            padding: 10px;
            border-radius: 10px;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
            display: flex;
            flex-direction: column;
            height: 60vh;
        }
        #chat-box {
            flex-grow: 1;
            overflow-y: auto;
            padding: 5px;
            display: flex;
            flex-direction: column;
            gap: 5px;
        }
        .chat-message {
            max-width: 75%;
            padding: 8px 12px;
            border-radius: 10px;
            font-size: 0.85em;
            line-height: 1.3;
            word-wrap: break-word;
        }
        .bot-message {
            background: #e1f5fe;
            align-self: flex-start;
        }
        .user-message {
            background: #bbdefb;
            align-self: flex-end;
        }
        .chat-options {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 10px 0;
        }
        .option-button {
            background-color: #003366;
            color: white;
            border: none;
            padding: 8px;
            border-radius: 5px;
            cursor: pointer;
            text-align: center;
            font-size: 0.9em;
        }
    
#chat-box {
  height: 300px;
  overflow-y: auto;
  padding: 1rem;
  background: #f9f9f9;
  border-radius: 10px;
  margin-bottom: 1rem;
}

.chat-message {
  margin-bottom: 0.5rem;
  padding: 0.5rem;
  border-radius: 6px;
}

.user-message {
  background-color: #d0e8ff;
  text-align: right;
}

.bot-message {
  background-color: #e6e6e6;
  text-align: left;
}

.option-button {
  padding: 0.4rem 0.75rem;
  margin: 0.2rem;
  background-color: #003366;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.option-button:hover {
  background-color: #005bb5;
}