body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: Arial, sans-serif;
}

header {
    background-color: #005f73;
    color: white;
    text-align: center;
    padding: 20px 0;
}

main {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: calc(100% - 60px);
    background: url('background-image.jpg') no-repeat center center;
    background-size: cover;
}

main p {
    font-size: 1.2em;
    color: #fff;
}

#loginButton {
    padding: 10px 20px;
    margin-top: 20px;
    font-size: 1em;
    color: white;
    background-color: #0077b6;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

#loginButton:hover {
    background-color: #023e8a;
}