#bif-container {
    max-width: 800px;
    margin: 20px auto;
    font-family: Arial, sans-serif;
}

#bif-form label {
    display: block;
    margin: 10px 0 5px;
}

#bif-form select {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
}

#bif-results table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

#bif-results th, #bif-results td {
    padding: 10px;
    text-align: left;
}

#bif-results th {
    background-color: #f2f2f2;
}

#bif-description {
    margin-top: 20px;
}

#bif-description h3 {
    margin-top: 20px;
}

#bif-description h4 {
    margin-top: 15px;
}