main {
    background-color: #ffffff;
    color: #333333;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    margin: 0;
    padding: 0;
}

main {
    padding: 20px;
}

h1, h2, h3 {
    color: #1a73e8;
}

p {
    line-height: 1.6;
}

.intro-image {
    width: 100%;
    height: auto;
    margin-top: 20px;
}

#introduction {
    background: linear-gradient(135deg, #f7f9fc, #e2e8f0);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

#questions {
    background: linear-gradient(135deg, #fdfdfd, #f0f4f8);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.question-answer {
    background: rgba(26, 115, 232, 0.1);
    margin-bottom: 20px;
    padding: 10px;
    border-radius: 8px;
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

.question-answer:hover {
    background: rgba(26, 115, 232, 0.2);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.answer {
    margin-top: 10px;
    font-style: italic;
}

@media (max-width: 600px) {
    .intro-image {
        margin-top: 10px;
    }

    #introduction, #questions {
        padding: 10px;
    }

    .question-answer {
        padding: 8px;
    }
}

.pagination {
    text-align: center;
    margin-top: 20px;
}

.pagination button {
    background-color: #1a73e8;
    color: #ffffff;
    border: none;
    padding: 10px 20px;
    margin: 5px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.pagination button:hover {
    background-color: #155a9c;
}

#page-num {
    font-size: 18px;
    margin: 0 10px;
}

@media (max-width: 600px) {
    .intro-image {
        margin-top: 10px;
    }

    #introduction, #questions {
        padding: 10px;
    }

    .question-answer {
        padding: 8px;
    }

    .pagination button {
        padding: 8px 16px;
    }
}