body {
    font-family: 'Arial', sans-serif;
    height: 100%;
    margin: 0;
    display: flex;
    flex-direction: column;
}
nav {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
nav a:hover {
    color: #ffcc00;
}
button:hover {
    background-color: #2563eb;
}
canvas {
    background-color: #fff;
    border-radius: 8px;
}

.content {
    flex-grow: 1;
}
#quiz-container label:hover {
    background-color: #e0f7fa;
    padding: 4px;
    border-radius: 4px;
}