@media screen and (max-width: 1385px) {
    .panel_auth {
        font-size: 17px;
        margin-right: 0.75%;
    }
    .panel_auth a, .panel_auth p {
        margin-top: 9px;
    }
    /*.panel_auth a.exit {
        font-size: 17px;
        margin-top: 8px;
    }*/
    .panel_auth span {
        margin: 5px 5px 0;
    }
}
@media screen and (max-width: 1350px){
    .panel_auth {float: right;}
    .panel_auth a, .panel_auth p {
        display: block;
        margin-top: 0;
    }
    .panel_auth span {
        display: none;
    }
    .panel_auth a.exit {
        margin-top: 0;
        float: right;
    }
}
@media screen and (max-width: 1230px) {
    header nav ul li a {
        margin-left: 7px;
    }
}
@media screen and (max-width: 1188px) {
    header nav ul li a {
        margin-left: 0px;
    }
}
@media screen and (max-width: 1179px) {
    #content .container_flex {
        flex-wrap: nowrap;
    }
    aside ul li.li_conference {
        display: block;
        width: auto;
        background: url("../img/arrow.png") no-repeat 0 50%;
        padding-bottom: 0;
        margin-bottom: 10px;
        margin-right: 20px;
    }
    aside ul li.li_conference a {
        width: auto;
        padding: 3px 8px 6px 10px;
    }
    aside ul li.li_certificate {
        margin-left: -4px;
        padding-left: 52px;
        margin-bottom: 0;
        background: url(../img/arrow_bot.png) no-repeat 0 20px;
    }
    aside ul li.li_certificate a {
        width: auto;
        padding: 3px 8px 6px 10px;
    }
}
@media screen and (max-width: 1145px) {
    header nav ul li a {
        font-size: 17px;
    }
}
@media screen and (max-width: 1099px) {
    header nav ul li a {
        font-size: 16px;
    }
}
@media screen and (max-width: 1072px) {
    header .logo {
        padding-left: 0;
    }
    header nav ul li a {
        font-size: 16px;
    }
    .reg_form .w60 {
        width: 56.1%;
    }
}
@media screen and (max-width: 1051px) {
    header nav ul li a {
        font-size: 15px;
    }
}
@media screen and (max-width: 1000px) {
    header .container_flex {
        padding-left: 0px;
    }
    header .logo img {
        height: 32px;
    }
    aside {
        flex-basis: 45%;
    }
    main {
        flex-basis: 50%;
    }
    main .wrap-flex {
        flex-wrap: wrap;
    }
    .info_video {
        max-width: 100%;
        margin-left: 0;
        margin-top: 20px;
    }
    .info_video h4 {
        margin-right: 20px;
    }
}
@media screen and (max-width: 988px) {
    #content .container_flex {
        padding-left: 15px;
    }
    aside ul li,
    aside ul li.li_certificate {
        padding-left: 35px;
    }
}
@media screen and (max-width: 978px) {
    header .logo img {
        height: 32px;
    }
}
@media screen  and (max-width: 962px) {
    aside {
        flex-basis: 42%;
    }
    main {
        flex-basis: 55%;
    }
}
@media screen  and (max-width: 959px) {
    .wrap-radio label {
        max-width: 80%;
    }
    header nav ul li a {
        font-size: 16px;
    }
    .but_flex {
        position: absolute;
        right: 10px;
        top: 13px;
    }
    header .logo {
        margin-top: 0px;
    }
    .panel_auth {
        position: absolute;
        right: 15px;
    }
    .panel_auth a, .panel_auth p {
        display: inline-block;
        vertical-align: top;
    }
    .panel_auth span {
        display: inline-block;
        margin-top: 2px;
        margin-right: 8px;
        height: 20px;
        vertical-align: top;
    }
}
@media screen and (max-width: 940px) {
    header nav ul li {
        margin-left: 7px;
    }
    footer .footer_mail {
        flex-basis: 34%;
    }
    header .logo {
        display: block;
        margin: 10px auto;
    }
    .container_flex {
        padding-left: 22px;
    }
    footer .container_flex {
        padding-left: 0;
    }
}
@media screen and (max-width: 907px) {
    header nav ul li a {
        font-size: 16px;
    }
}
@media screen and (max-width: 900px) {
    header nav ul li {
        margin-left: 0;
    }
    .container_flex {
        padding-left: 20px;
    }
    footer .container_flex,
    header .container_flex {
        padding-left: 0;
    }
    .block_contacts {
        font-size: 18px;
    }
    .block_request:first-child {
        margin-right: 10%;
    }
}
@media screen and (max-width: 876px) {
    aside {
        flex-basis: 41%;
    }
    main {
        flex-basis: 56%;
    }
    .block_head {
        display: flex;
    }
    .wrap-radio label {
        max-width: 90%;
    }
    .block_bord label {
        padding-left: 40px;
    }
    .reg_form .w60 {
        width: 55.5%;
    }
}
@media screen and (max-width: 861px) {
    header {
        margin-bottom: 10px;
    }
    #nav-toggle, #menu-toggle {
        display: inline-block;
    }
    #nav-toggle {
        top: 18px;
    }
    .but_flex {
        top: 15px;
    }
    header nav {
        display: none;
        position: absolute;
        top: 0;
        right: 0;
        left: 0;
        text-align: center;
        background: #fff;
    }
    header nav ul {
        display: block;
    }
    header nav ul li {
        display: block;
        margin-bottom: 5px;
    }
    header nav ul li a {
        font-size: 18px;
        text-align: center;
        display: block;
    }
    header .logo {
        text-align: left;
        margin: 10px 15px;
    }
}
@media screen and (max-width: 850px) {
    .clearfoot {height: 150px;}
    footer {
        height: 100px;
        margin-top: -100px;
        font-size: 20px;
    }
    footer .container_flex {
        height: 100px;
    }
    footer .footer_logo img {
        width: 90px;
    }
    .feedback_flex label {
        font-size: 18px;
    }
}
@media screen and (max-width: 840px) {
    main {
        padding-right: 20px;
    }
    header nav ul li a {
        font-size: 15px;
    }
}
@media screen and (max-width: 816px) {
    header nav ul li a {
        font-size: 15px;
    }
    .form_feedback {
        flex-basis: 65%;
    }
    .feedback_flex {
        flex-wrap: wrap;
    }
    .feedback_flex label {
        flex-basis: 100%;
        line-height: 24px;
    }
    .feedback_flex input, .feedback_flex textarea {
        flex-basis: 90%;
    }
    #contacts .form_feedback h2 {
        margin-left: 0;
        text-align: left;
    }
    .block_request {
        width: 300px;
        font-size: 18px;
    }
    .block_request p a {
        font-size: 15px;
    }
    #info .info_kpk {
        margin-right: 15%;
    }
    #info {
        font-size: 19px;
    }
    #kurs .wrap-flex {
        padding-right: 20px;
    }
    .block_request:first-child {
        margin-right: 5%;
    }
}
@media screen and (max-width: 784px) {
    #registration .container_flex {
        padding-left: 15px;
    }
    .feedback_flex label {
        font-size: 17px;
    }
    .block_contacts {
        font-size: 17px;
    }
    header nav ul li a {
        font-size: 14px;
    }
}
@media screen and (max-width: 753px) {
    #content .container_flex {
        flex-wrap: wrap;
    }
    aside {
        display: none;
        flex-basis: 100%;
        z-index: 999;
    }
    aside ul li a {
        max-width: 95%;
    }
    main {
        flex-basis: 100%;
        padding-top: 50px;
    }
    main img, main iframe {
        margin: 0 auto;
    }
    .block_head {
        justify-content: center;
    }
    aside ul li.li_certificate {
        background: url(../img/arrow_bot.png) no-repeat 0 11px;
        width: 93%;
    }
    .block_bord label {
        padding-left: 20px;
    }
}
@media screen and (max-width: 710px) {
    #registration .container_flex {
        padding-left: 10px;
    }
    header .logo {
        margin-left: 10px;
    }
    footer {
        min-height: 100px;
        height: auto;
    }
    footer .container_flex {
        display: block;
        min-height: 100px;
        height: auto;
        padding: 10px 0;
    }
    .footer_mail, .footer_phone {
        margin: 10px 0;
    }
    #info .info_kpk {
        margin-right: 5%;
    }
    .block_request:first-child {
        margin-right: 5%;
    }
    .reg_form .wrap-flex {
        display: block;
    }
    .reg_form .w40 {width: 100%;}
    .reg_form .w60 {width: 97.5%;margin-left: 0;}
}
@media screen and (max-width: 670px) {
    #contacts .container_flex {
        flex-wrap: wrap;
    }
    .form_feedback, .block_contacts {
        flex-basis: 100%;
    }
    .block_contacts {
        padding-top: 30px;
        padding-right: 13px;
    }
    .block_contacts p {
        padding-top: 0;
    }
    .feedback_flex input, .feedback_flex textarea {
        flex-basis: 96%;
    }
    #kurs .wrap-flex, #info .wrap-flex {
        display: block;
        text-align: center;
    }
    .block_request, .block_request:first-child {
        margin-left: auto;
        margin-right: auto;
    }
    #info .info_kpk {
        margin-right: 0;
    }
    .wrap-radio label {
        max-width: 95%;
    }
}
@media screen and (max-width: 634px) {
    .wrap-flex {
        display: block;
        text-align: center;
    }
    .input-flex input {
        width: 97.5%
    }
    .info_video {
        text-align: left;
    }
    #kurs h3 b, #info h3 b, #registration h3 b {
        max-width: 90%;
        font-size: 24px;
    }
}
@media screen  and (max-width: 550px) {
    #kurs h3 b, #info h3 b {
        font-size: 22px;
    }
}
@media screen  and (max-width: 500px) {
    main img, main iframe {
        width: 100%;
        height: auto;
    }
}
@media screen and (max-width: 440px) {
    #contacts h2 {
        font-size: 25px;
    }
    .block_select select {
        min-width: 300px;
    }
    #kurs .container_flex, #info .container_flex {
        padding-left: 0;
    }
    .wrap-button input {
        margin-bottom: 10px;
    }
}
@media screen and (max-width: 402px) {
    #contacts h2, #registration h2 {
        font-size: 23px;
    }
    .block_bord label {
         padding-left: 10px;
    }
    .reg_form .input-flex input, .block_bord {
        font-size: 18px;
    }
}
@media screen and (max-width: 371px) {
    #contacts h2, #registration h2 {
        font-size: 21px;
    }
    .wrap-radio.inline-radio label {
        margin: 0 30px;
    }
}
@media screen and (max-width: 360px) {
    header .logo img {
        height: 30px;
    }
    #nav-toggle {
        top: 12px;
    }
}
@media screen and (max-width: 341px) {
    #contacts .container_flex {
        padding-left: 13px;
    }
    .block_bord label img {
        min-width: 50px;
        margin-left: 0px;
    }
    .block_bord .label-flex {
        margin-right: -6px;
    }
}