@media (min-height: 1090px) {
  .about__title h1 {
    font-size: 4.4vh;
  }
  .about__title h2 {
    font-size: 2.6vh;
  }
}

@media (max-width: 1260px) {
  .allpages-container {
    width: 900px;
  }
  .circle-1 {
    width: 900px;
  }
  .circle-1 img {
    width: 450px;
  }
  .header {
    width: 900px;
  }
  .header__logo-menu img {
    width: 130px;
  }
  .header__logo-menu {
    padding-right: 20px;
  }
  .header__menu li {
    margin-right: 16px;
  }
  .header__phone-btn {
    width: 270px;
  }
  .header__btn {
    width: 100px;
  }
  .about {
    width: 900px;
    margin: auto;
  }
  .about__title h1 {
    font-size: 5vh;
  }
  .about__title h2 {
    font-size: 2.8vh;
  }
  .about__img {
    max-width: 420px;
  }
  .about__title {
    width: 410px;
  }
  
  .problems-container {
    width: 900px;
    height: 1003px;
  }
  .problems__item-high {
    background-position: 50% 41px;
    background-size: 338px 340px;
    width: 338px;
    height: 395px;
  }
  .problems__item-usual {
    background-position: 50% 9px;
    background-size: 338px 340px;
    width: 338px;
    height: 357px;
  }
  .problems-title {
    width: 900px;
    font-size: 42px;
  }
  .problems__bg-1 {
    width: 153px;
    left: -176px;
    top: 148px;
  }
  .problems__bg-2 {
    width: 153px;
    right: -153px;
    top: 331px;
  }
  .problems__bg-3 {
    width: 153px;
    left: -178px;
    top: 622px;
  }
  .problems__bg-4 {
    width: 153px;
    left: 270px;
    bottom: 0;
  }
  .problems__bg-5 {
    right: -157px;
    top: 0;
    width: 336px;
  }
  .problems__bg-6 {
    left: -178px;
    top: 286px;
    width: 336px;
  }
  .problems__bg-7 {
    right: -200px;
    top: 750px;
    width: 336px;
  }
  .img-btn-0 {
    top: -40px;
  }
  .img-btn-1 {
    top: -40px;
    left: 360px;
  }
  .img-btn-2 {
    top: 275px;
    left: 181px;
  }
  .img-btn-3 {
    top: 276px;
    left: 540px;
  }
  .img-btn-4 {
    top: 560px;
  }
  .img-btn-5 {
    top: 535px;
    left: 363px;
  }
  .problems__bg-7 {
    right: -162px;
    top: 575px;
  }
  
  
  .slider {
    width: 900px;
    height: 492px;
    background-size: cover;
  }
  .slider__item {
    width: 900px;
    height: 492px;
    background-size: 900px 506px;
    padding: 45px;
  }
  .modul {
    font-size: 27px;
    width: 420px;
  }
  .modul__title {
    font-siZe: 46px;
    width: 420px;
    margin-bottom: 23px;
  }
  .modul__descr {
    font-siZe: 21px;
    width: 420px;
  }
  .reg-btn {
    width: 146px;
    bottom: 41px;
    left: 45px;
  }
  .slider .owl-theme .owl-dots {
    width: 218px;
    height: 20px;
    bottom: 59px;
    left: 224px;
  }
  .slider .owl-theme .owl-dots .owl-dot span {
    width: 22px;
    height: 20px;
    margin: 0 8px 0 0;
    background-size: 21px 40px;
  }
  .slider .owl-theme .owl-dots .owl-dot.active span, .slider .owl-theme .owl-dots .owl-dot:hover span {
    background-size: 21px 40px;
    background-position: 0 -20px;
  }
  .circle-3 {
    bottom: 92px;
    right: -53px;
    width: 140px;
  }
  .circle-2 {
    width: 390px;
  }
  .circle-4 {
    width: 202px;
  }
  .footer {
    width: 900px;
  }
  .footer-col {
    font-size: 18px;
  }
}


@media (max-height: 840px) {
  .about__img {
    max-width: 450px;
  }
}
@media (max-height: 700px) {
  .about__img {
    max-width: 300px;
  }
}


@media (max-width: 991px) {
  .allpages-title {
    font-size: 36px;
    text-align: center;
  }
  .allpages-container {
    width: calc(100% - 30px);
  }
  .pgn {
    justify-content: center;
  }
  .pgn-item {
    margin-right: 5px;
    margin-left: 5px;
    transition: none;
  }
  .pgn-item:hover {
    opacity: 1;
  }
  .pgn-item.pgn-btn {
    display: none;
  }
  .news-list {
    display: block;
  }
  .news-list__item {
    margin-left: auto;
    margin-right: auto;
  }
  .header-section {
    height: auto;
    background-image: url(../images/m-bg-1.jpg);
    padding-bottom: 10px;
  }
  .header__logo-menu, .header__phone-btn, .circle-1 {
    display: none;
  }
  .m-menu-btn, .m-logo, .m-lk {
    display: inline-block;
  }
  .header {
    width: calc(100% - 30px);
    height: auto;
    padding: 20px 0 0 0;
  }
  .about {
    width: calc(100% - 30px);
    flex-direction: column;
    align-items: center;
    justify-content: start;
  }
  .about__title {
    width: 100%;
    text-align: center;
    font-size: 40px;
  }
  .about__btns {
    flex-direction: column;
    justify-content: center;
    padding: 30px 0 0;
  }
  .demo-btn {
    width: 100%;
    margin-bottom: 20px;
  }
  .presentation-btn.btn-style {
    margin-bottom: 55px;
    width: 100%;
  }
  
  .problems-title {
    width: calc(100% - 30px);
    font-size: 40px;
    text-align: center;
    margin: 0 auto 100px;
  }
  .problems-container {
    width: calc(100% - 30px);
    height: auto;
    position: relative;
  }
  .problems__item-high, .problems__item-usual, .problems__bg {
    display: none;
  }
  .circle-1, .circle-2, .circle-3, .circle-4 {
    display: none;
  }
  
  .problems-section {
    background: url(../images/circle-2.png) -80px 915px no-repeat, url(../images/jaj-1.jpg) 50% 0 no-repeat;
    background-size: auto, cover;
  }
  .m-img-btn {
    display: block;
    width: 100%;
    max-width: 336px;
    margin: 0 auto 30px;
    position: relative;
    z-index: 2;
  }
  .problems__mobile-bg-holder {
    display: block;
    width: 1px;
    height: 100%;
    position: absolute;
    top :0;
    left: 50%;
    z-index: 1;
  }
  .problems__mobile-bg-holder img {
    position: absolute;
  }
  .problems__mobile-bg-1 {
    top: -83px;
    left: -224px;
  }
  .problems__mobile-bg-2 {
    top: 455px;
    left: -350px;
  }
  .problems__mobile-bg-3 {
    top: 809px;
    left: 277px;
  }
  .problems__mobile-bg-4 {
    top: 1034px;
    left: -191px;
  }
  .problems__mobile-bg-5 {
    top: 1402px;
    left: 108px;
  }
  .problems__mobile-bg-6 {
    top: 1635px;
    left: 281px;
  }
  .problems__mobile-bg-7 {
    top: 1728px;
    left: -552px;
  }
  .problems__mobile-bg-8 {
    top: -93px;
    left: 218px;
  }
  .problems__mobile-bg-9 {
    top: 255px;
    left: -324px;
  }
  .problems__mobile-bg-10 {
    top: 619px;
    left: 136px;
  }
  .problems__mobile-bg-11 {
    top: 1356px;
    left: -391px;
  }
  .problems__mobile-bg-11a {
    top: 1727px;
    left: 143px;
  }
  .problems__mobile-bg-12 {
    top: 1838px;
    left: -319px;
  }
  .problems__mobile-bg-13 {
    top: 669px;
    left: -256px;
  }
  .problems__mobile-bg-14 {
    top: 143px;
    left: -391px;
  }
  .problems__mobile-bg-15 {
    width: 336px;
    top: 190px;
    left: 200px;
  }
  .problems__mobile-bg-16 {
    width: 336px;
    top: 550px;
    right: 300px;
  }
  .problems__mobile-bg-17 {
    width: 336px;
    top: 1290px;
    left: 250px;
  }
  .slider {
    width: calc(100% - 30px);
    height: 685px;
    background: linear-gradient(180deg, rgba(42,22,36,1) 0%, rgba(73,28,51,1) 100%);
    padding-top: 30px;
  }
  .slider__item {
    width: 100%;
    max-width: 540px;
    height: auto;
    background-size: 700px 394px;
    padding: 0 0 500px 0;
    margin: auto;
    background-position: -265px 100%;
  }
  .slider__item.reverce {
    background-position: 120px 100%;
  }
  .modul {
    width: 100%;
    font-size: 26px;
  }
  .modul__title {
    width: 100%;
    font-size: 30px;
    margin-bottom: 6px;
    height: 32px;
    overflow: hidden;
  }
  .modul__title br {
    display: none;
  }
  .modul__descr {
    width: 100%;
    font-size: 16px;
    height: 77px;
    overflow: hidden;
  }
  .reg-btn {
    bottom: auto;
    top: 210px;
    left: 50%;
    transform: translate(-50%, 0);
  }
  .slider .owl-theme .owl-dots {
    width: 100%;
    bottom: auto;
    top: 250px;
    left: 0;
    text-align: center;
    height: 30px;
  }
  .footer {
    width: calc(100% - 30px);
    flex-direction: column;
    align-items: start;
    justify-content: start;
    height: auto;
    padding-bottom: 290px;
  }
  .footer-col {
    margin-bottom: 30px;
  }
  .footer:before {
    content: "";
    display: block;
    background: url(../images/73753737.png);
    width: 449px;
    height: 355px;
    position: absolute;
    bottom: 0;
    right: 0;
  }
  .mob-menu {
    display: block;
    width: 100%;
    height: 100vh;
    position: fixed;
    top: 0;
    background: #ffb856;
    z-index: 1000;
    transition: .3s;
  }
  .mob-menu.closed {
    right: -110%;
  }
  .mob-menu.opened {
    right: 0;
  }
  .mob-menu__container {
    padding-top: 80px;
    width: 90%;
    max-width: 320px;
    margin: auto;
    display: flex;
    flex-direction: column;
    align-items: start;
    justify-content: center;
  }
  .mob-menu__container a {
    color: #fff;
  }
  .mob-menu__phone {
    width: 100%;
    margin-bottom: 40px;
    text-align: center;
  }
  .close-mob-menu {
    width: 40px;
    height: 40px;
    line-height: 36px;
    border-radius: 50%;
    border: 2px solid #fff;
    position: absolute;
    top: 20px;
    right: 20px;
    text-align: center;
  }
  .mob-menu__container ul {
    width: 100%;
    list-style: none;
    margin: 0;
    padding: 0;
  }
  .mob-menu__container ul li {
    margin-bottom: 20px;
    text-align: center;
  }
  .mob-menu__container ul li a {
    display: inline-block;
    border-bottom: 1px dashed #fff;
  }
  .about__title h1 {
    font-size: 38px;
  }
  .about__title h2 {
    font-size: 26;
  }
}


@media (max-width: 960px) {
  .problems-section {
    margin-bottom: 0;
    background: url(../images/jaj-1.jpg) 50% 0 no-repeat;
    background-size: auto;
  }
}



@media (max-width: 768px) {
  .footer:before {
    background-size: 200px 202px;
    width: 200px;
    height: 90px;
  }
  .footer {
    padding-bottom: 70px;
  }
  .slider {
    height: 545px;
    padding-left: 10px;
    padding-right: 10px;
  }
  .slider__item {
    max-width: 300px;
    background-size: 400px 225px;
    padding: 0 0 360px 0;
    background-position: -150px 100%;
  }
  .slider__item.reverce {
    background-position: 66px 100%;
  }
  .about__title h1 {
    font-size: 28px;
  }
  .about__title h2 {
    font-size: 18;
  }
  .footer-col__1, .footer-col__2, .footer-col__3 {
    width: 100%;
  }
  .user-form-holder h1 {
    padding: 0 0 15px 0;
    font-size: 60px;
  }
}



@media (max-width: 425px) {
  .news-list__item {
    width: 300px;
  }
  .news-list__item_pic {
    width: 300px;
    height: 217px;
  }
  .news-list__item_pic img {
    width: 300px;
    height: 217px;
  }
  .problems__mobile-bg-1 {
    display: none;
  }
  .problems-title {
    font-size: 32px;
    margin: 0 auto;
  }
  .m-logo img {
    width: 140px;
  }
  .user-form-holder h1 {
    font-size: 30px;
  }
  .select-user-type label {
    padding: 7px 10px;
    font-size: 16px;
  }
  .if-multi label {
    font-size: 16px;
  }
}