body {
    font-family: sans-serif;
}

/* Styles for the modal container */
.modal {
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    left: 50%; /* Center horizontally */
    top: 50%; /* Center vertically */
    transform: translate(-50%, -50%); /* Precisely center */
    width: 80%; /* Could be a specific pixel value like 400px */
    max-width: 400px; 
    background-color: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    display: none; /* Hidden by default */
}

/* Styles for the close button */
.close-button {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

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

/* Styles for the background overlay */
#overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: none; /* Hidden by default */
    z-index: 0;
}