body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0;
    background-color: #f0f0f0;
}

#app {
    text-align: center;
    margin-top: 20px;
}

#card {
    background-color: white;
    border: 1px solid #ccc;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 300px;
    height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

#question, #answer {
    font-size: 1.2em;
}

#answer {
    font-size: 1.5em;
    margin-top: 20px;
}

.hidden {
    visibility: hidden;
}

.highlight {
    font-weight: bold;
    font-style: italic;
}

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

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

#resources {
    margin-top: 40px;
    text-align: center;
}

#resources ul {
    list-style-type: none;
    padding: 0;
}

#resources li {
    margin: 10px 0;
}

#resources a {
    color: #007bff;
    text-decoration: none;
}

#resources a:hover {
    text-decoration: underline;
}