body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
    color: #333;
}

header {
    background-color: #007bff;
    color: white;
    padding: 20px 0;
    text-align: center;
}

main {
    max-width: 800px;
    margin: 20px auto;
    padding: 0 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

h1, h2 {
    color: #007bff;
}

a {
    color: #ff5722;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.iata-code {
    font-weight: bold;
    color: #555;
}

#backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    display: none;
}

#backToTop:hover {
    background-color: #0056b3;
}