main {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 20px;
    line-height: 1.8;
}


main h1 {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 3px solid #ddd;
    text-align: left;
}


main h2 {
    font-size: 22px;
    font-weight: bold;
    color: #333;
    margin-top: 40px;
    margin-bottom: 15px;
    padding-left: 12px;
    text-align: left;
}


main p {
    font-size: 15px;
    color: #555;
    margin-bottom: 20px;
    line-height: 1.9;
    text-align: left;
}


main p:last-of-type {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid #ddd;
    font-size: 14px;
    color: #777;
    text-align: right;
}


@media screen and (max-width: 768px) {
    main {
        padding: 40px 15px;
    }

    main h1 {
        font-size: 26px;
        margin-bottom: 25px;
    }

    main h2 {
        font-size: 19px;
        margin-top: 30px;
    }

    main p {
        font-size: 14px;
    }
}