body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
}

/* Modal styles */
.modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    background-color: rgba(0,0,0,0.4); /* Black background with opacity */
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: #000000;
    padding: 30px;
    border: 1px solid #888;
    width: 90%; /* Could be more or less, depending on screen size */
    max-width: 580px;
    text-align: center;
    border-radius: 10px;
    position: relative;
}

.close-btn {
    color: #aaa;
    float: right;
    font-size: 27px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    top: 20px;
    right: 20px;
}

.close-btn:hover,
.close-btn:focus {
    color: #000;
    text-decoration: none;
    cursor: pointer;
}

button {
    margin-top: 15px;
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

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