* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}


body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
}


.head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;

    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)),
                url(images/bgpic4.jpg);
    background-size: cover;
    background-position: center;
}


.head1 {
    color: white;
}

.head1 h1 {
    font-size: 28px;
}

.head1 h2 {
    font-size: 18px;
}

.head1 h1:hover,
.head1 h2:hover {
    color: yellow;
}


.head2 {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.head2 a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    transition: 0.3s;
}

.head2 a:hover {
    color: violet;
    transform: scale(1.1);
}


h2 {
    margin: 15px;
    border-bottom: 2px solid black;
    padding-bottom: 5px;
}


.main1, .main2 {
    background-color: #f5f5f5;
    margin: 10px;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    font-size: 16px;
}

.main1 {
    text-indent: 40px;
}

.main3 {
    margin: 10px;
    font-size: 16px;
}


@media (max-width: 650px) {

    body {
        font-size: 14px;
    }

    .head {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    .head1 h1 {
        font-size: 22px;
    }

    .head1 h2 {
        font-size: 16px;
    }

    .head2 {
        flex-direction: column;
        gap: 10px;
    }

    .head2 a {
        font-size: 14px;
    }

    .main1, .main2 {
        font-size: 14px;
        text-indent: 20px;
    }

    h2 {
        font-size: 18px;
    }
}