@media (max-width: 1148px) {
    .pre-part {
        margin: 0;
    }
    .next-part {
        margin-left: 30px;
    }
    .flex-main .main-title {
        display: none;
    }
    .flex-main {
        text-align: center;
    }
}

@media (max-width: 998px) {
    .flex-main {
        width: 410px;
        height: 370px;
        text-align: left;
    }
    ol {
        padding-left: 0;
    }
    .contacts-container {
        transform: translate(-170%, -20%);
    }
    .flex-footer-block {
        flex-direction: column;
    }
    .footer-block:nth-child(2) {
        margin-left: 0;
    }
    .second-main-title {
        margin-top: 500px;
    }
}

@media (max-width: 811px) {
    .contacts-container {
        margin-left: 17%;
        margin-top: 25px;
        margin-bottom: 50px;
        transform: none;
    }
}

@media (max-width: 811px) {
    .second-main-title {
        margin-top: 600px;
    }
}

@media (max-width: 755px) {
    .second-main-title {
        margin-top: 650px;
    }
}

@media (max-width: 581px) {
    .second-main-title {
        margin-top: 750px;
    }
}

@media (max-width: 528px) {
    .second-main-title {
        margin-top: 850px;
    }
}

@media (max-width: 414px) {
    body {
        text-align: center;
    }
    .menu {
        font-size: 14.5px
    }
    .header-main-block {
        padding-top: 45px;
    }
    .logo {
        top: -1%;
    }
    .first-content-block {
        width: 414px;
    }
    .flex-helper {
        display: none;
    }
    .second-content-block {
        height: 1800px;
    }
    .column-flex-block {
        width: 400px;
        height: 400px;
    }
    .column-flex-block:nth-child(3), .column-flex-block:nth-child(4) {
        height: 200px;
    }
    .contacts-container {
        margin-left: 8%;
    }
    .flex-main {
        width: 400px;
        height: 450px;
        text-align: left;
        margin-left: 7px;
    }
    #fili {
        display: none;
    }
    .second-content-block {
        margin-top: 650px;
    }
    .footer-main-block {
        margin-top: 100px;
    }
}

@media (max-width: 375px) {
    body {
        text-align: center;
    }
    head {
        font-size: 15px;
    }
    .menu {
        font-size: 12.5px;
    }
    .flex-row-set-blocks h2 {
        font-size: 30px;
    }
    .subtitle-main {
        padding-left: 0;
        font-size: 30px;
    }
    .text-main {
        padding: 20px;
    }
    .header-main-block {
        padding-top: 45px;
        margin-left: -10px;
    }
    .logo {
        top: -1%;
    }
    .first-content-block {
        width: 375px;
    }
    .flex-helper {
        display: none;
    }
    .first-content-block {
        width: 375px;
    }
    .column-flex-block {
        width: 361px;
    }
    .contacts-container {
        margin-left: 3.5%;
    }
    .flex-main {
        width: 361px;
        height: 400px;
        text-align: left;
        margin-left: 7px;
    }
    #fili {
        display: none;
    }
    .second-content-block {
        margin-top: 600px;
    }
}