body {
    font-family: Arial, sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

#initialOptions, #addOptions {
    margin-bottom: 20px;
}

button {
    margin-right: 10px;
    padding: 10px 20px;
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #45a049;
}

#loadGradebookInput {
    display: none;
}

#loadGradebookLabel {
    padding: 10px 20px;
    background-color: #008CBA;
    color: white;
    cursor: pointer;
}

#loadGradebookLabel:hover {
    background-color: #007B9A;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

th, td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

th {
    background-color: #f2f2f2;
}

td:hover {
    background-color: #f5f5f5;
    cursor: pointer;
}