body {
            background-image: url('airport.jpg');
            background-size: cover;           
            font-family: 'Arial', sans-serif;
            background-color: #e0f7fa; 
            margin: 0;
            color: #004d40; 
        }
        .navbar {
            background-color: #00796b; 
            padding: 15px;
            text-align: center;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
        }
        .navbar h1 {
            margin: 0;
            color: white;
            font-size: 28px;
        }
        .intro {
            max-width: 800px;
            margin: 20px auto;
            padding: 20px;
            background: white;
            border-radius: 10px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            text-align: center;
        }
        .intro p {
            line-height: 1.6;
        }
        .container {
            max-width: 800px;
            margin: 30px auto;
            background: #ffffff; 
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }
        h2 {
            margin-bottom: 10px;
            font-size: 28px;
            text-align: center;
            color: #00796b; 
        }
        label {
            margin: 15px 0 5px;
            display: block;
            font-weight: bold;
            color: #004d40; 
        }
        input, select, button {
            width: calc(100% - 22px);
            padding: 12px;
            margin-bottom: 20px;
            border: 1px solid #00796b; 
            border-radius: 4px;
            font-size: 16px;
        }
        button {
            background-color: #ff7043; 
            color: white;
            cursor: pointer;
            font-weight: bold;
            transition: background-color 0.3s;
        }
        button:hover {
            background-color: #f4511e; 
        }
        #output {
            margin-top: 20px;
            text-align: center;
        }
        footer {
            background-color: #00796b; 
            color: white;
            text-align: center;
            padding: 15px;
            position: relative;
        }
        .social-icons a {
            margin: 0 10px;
            color: white;
            text-decoration: none;
        }