.about-us-main-title {
  margin-bottom: 100px;
}

.about-us-main-title h2 {
  margin: 0;
  font-weight: 900;
  font-size: 50px;
  line-height: 56px;
  letter-spacing: 0.02em;
  color: #213D49;
}

.video {
  margin-bottom: 60px;
  position: relative;
}

.video:after {
  content: "";
  position: absolute;
  top: -40px;
  left: -40px;
  width: 1300px;
  height: 620px;
  z-index: 1;
  background-color: #edf4fe;
  border-radius: 10px;
}

.video iframe {
  border-radius: 10px;
  position: relative;
  z-index: 2;
  max-width: 1400px;
  width: 100%;
  height: 687px;
}

.about-us-main-title .container {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}

.about-item {
  width: 315px;
  height: 173px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  background: #edf4fe;
  border-radius: 15px;
}

.about-item:not(:last-child) {
  margin-bottom: 30px;
}
/* 
.about-text-wrapper {
  margin-right: 30px;
  max-width: 935px;
} */
.about-us-main-item {
        display: flex;
    justify-content: space-evenly;
}
.about-text-wrapper p {
  font-size: 20px;
  line-height: 26px;
  color: #252728;
  opacity: 0.9;
  margin-bottom: 30px;
}

.about-text-bold {
  margin: 0;
  margin-bottom: 40px;
  font-weight: 500;
  font-size: 20px;
  line-height: 29px;
  color: #252728;
}

.about-slider {
  margin-top: 100px;
  margin-bottom: 190px;
  position: relative;
}

.about-slider .slick-prev {
  position: absolute;
  bottom: -110px;
  left: 0px;
  background: url("../img/arrowPrev-slick.svg") 0 0/100% no-repeat;
  width: 90px;
  height: 20px;
  z-index: 5;
}

.about-slider .slick-next {
  position: absolute;
  bottom: -110px;
  left: 120px;
  background: url(../img/arrowNext-slick.svg) 0 0/100% no-repeat;
  width: 90px;
  height: 20px;
  z-index: 2;
}

.about-slider:after {
  content: "";
  position: absolute;
  width: 55vw;
  opacity: 0.1;
  border: 0.1px solid #213D49;
  bottom: -100px;
  right: 25px;
}

.our-mission .container {
  background-color: #edf4fe;
  padding: 50px 0 60px 80px;
}

.our-mission {
  margin-bottom: 100px;
}

.our-mission h3 {
  margin: 0;
  margin-bottom: 30px;
  font-weight: 900;
  font-size: 30px;
  line-height: 33px;
  color: #213D49;
}

.our-mission p {
  margin: 0;
  font-weight: 500;
  font-size: 20px;
  line-height: 29px;
  color: #252728;
  max-width: 1220px;
  font-style: italic;
}

.our-mission p:not(:last-child) {
  margin-bottom: 40px;
}

.advantages {
  margin-bottom: 130px;
}

.advantages h3 {
  text-align: center;
  margin: 0;
  margin-bottom: 70px;
  font-weight: 900;
  font-size: 30px;
  line-height: 33px;
  color: #213D49;
}

.advantages-wrapper {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
}

.advantages-box {
    position: relative;
  border: 4px solid #EDF4FE;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  border-radius: 15px;
  width: 1014px;
  margin-bottom: 20px;
  padding: 30px 25px 35px 85px;
}
.advantages-box-number-out {
   position: absolute;
    content: "";
    top: 18px;
    left: 29px;
    color: transparent;
    width: 60px;
    text-shadow: 0 0 #e05a5e;
    font-size: 4rem;
    height: 70px;
}
.advantages-box h4 {
  margin: 0;
  margin-bottom: 10px;
  font-weight: 900;
  font-size: 20px;
  line-height: 29px;
  letter-spacing: 0.02em;
  color: #213D49;
  position: relative;
}

.advantages-box h4:after {
  content: '';
  position: absolute;
  top: 5px;
  left: -60px;
  width: 40px;
  height: 40px;
  background-image: url("../img/aboutUs/one.png");
  background-repeat: no-repeat;
}

.advantages-box p {
  margin: 0;
  font-size: 20px;
  line-height: 26px;
  letter-spacing: 0.02em;
  color: #213D49;
}


.advantages-box .two:after {
  background-image: url("../img/aboutUs/two.png");
}

.advantages-box .three:after {
  background-image: url("../img/aboutUs/three.png");
}

.advantages-box .four:after {
  background-image: url("../img/aboutUs/four.png");
}

.advantages-box .five:after {
  background-image: url("../img/aboutUs/five.png");
}

.advantages-box .six:after {
  background-image: url("../img/aboutUs/six.png");
}

.advantages-box .seven:after {
  background-image: url("../img/aboutUs/seven.png");
}

.advantages-box .eight:after {
  background-image: url("../img/aboutUs/eight.png");
}

.clients {
  margin-bottom: 150px;
}

.clients h3 {
  text-align: center;
  margin: 0;
  margin-bottom: 60px;
  font-size: 30px;
  line-height: 33px;
  color: #213D49;
}

.clients-wrapper {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: space-evenly;
      -ms-flex-pack: space-evenly;
          justify-content: space-evenly;
}

.clients-item {
  margin-right: 50px;
  width: 198px;
  height: 198px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
}

.clients-item:nth-child(5n) {
  margin-right: 0;
}

@media (max-width: 1440px) {
  .video:after {
    top: -14px;
    left: -14px;
    width: 85vw;
  }
}

@media (max-width: 1320px) {
  .our-mission .container {
    padding-right: 30px;
    padding-left: 30px;
  }
}

@media (max-width: 1230px) {
  .clients-item:nth-child(5n) {
    margin-right: 50px;
  }
  .clients-item:nth-child(4n) {
    margin-right: 0;
  }
  .video:after {
    display: none;
  }
}

@media (max-width: 1024px) {
  .advantages-box {
    max-width: 1014px;
    width: 100%;
  }
  .about-text-wrapper p {
    line-height: 22px;
    margin-bottom: 0;
    font-size: 14px;
  }
  .about-us-main-title img {
    display: none;
  }
  .about-slider .slick-slide {
    margin: 0 20px 0 0;
  }
}

@media (max-width: 985px) {
  .clients-item {
    margin: 0;
  }
  .clients-item:nth-child(5n) {
    margin: 0;
  }
  .clients-item:nth-child(4n) {
    margin: 0;
  }
  .clients-wrapper {
    -webkit-box-pack: justify;
        -ms-flex-pack: justify;
            justify-content: space-between;
  }
}

@media (max-width: 768px) {
  .about-slider:after {
    display: none;
  }
 /*  .about-us-main .container {
   -webkit-box-orient: vertical;
   -webkit-box-direction: normal;
       -ms-flex-direction: column;
           flex-direction: column;
 } */
  .about-text-wrapper {
    margin-right: 0;
  }
  .about-info-wrapper {
      order: -1;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    align-content: baseline;
  }
  .about-item {
    width: 45vw;
  }
  .video iframe {
    height: 500px;
  }
  .about-slider .slick-next,
  .about-slider .slick-prev {
    bottom: -50px;
  }
   .about-us-main-item {
        flex-wrap: wrap;
    }
}

@media (max-width: 525px) {
  .about-us-main-title h2 {
    font-size: 24px;
  }
  .video iframe {
    height: 350px;
  }
  .about-slider {
    margin-bottom: 100px;
    margin-top: 50px;
  }
  .about-slider .slick-next,
  .about-slider .slick-prev {
    width: 50px;
    height: 16px;
  }
  .about-slider .slick-next {
    left: 70px;
  }
  .about-item {
    width: 42vw;
    height: 110px;
  }
  .about-item p {
    margin: 0;
    margin-top: 10px;
  }
  .about-info-wrapper {
    -webkit-box-pack: space-evenly;
        -ms-flex-pack: space-evenly;
            justify-content: space-evenly;
  }
  .fifteen {
    width: 15%;
  }
  .program,
  .human {
    width: 40%;
  }
  .scenario {
    width: 25%;
  }
  .about-text-wrapper p {
    font-size: 14px;
    line-height: 22px;
  }
  .about-text-bold {
    font-size: 16px;
    line-height: 26px;
  }
  .our-mission .container {
    padding: 50px 20px;
  }
  .our-mission h3 {
    line-height: 20px;
    font-size: 18px;
  }
  .our-mission p {
    font-size: 16px;
    line-height: 26px;
  }
  .advantages h3 {
    font-size: 21px;
    line-height: 31px;
    text-align: left;
  }
  .advantages-box {
    padding: 30px 10px 35px 60px;
  }
  .advantages-box h4 {
    font-size: 12px;
    line-height: 20px;
  }
  .advantages-box h4:after {
    left: -50px;
  }
  .advantages-box p {
    font-size: 12px;
    line-height: 20px;
  }
  .clients-item {
    width: 120px;
    height: 120px;
  }
  .about-us-main-title {
    margin-bottom: 30px;
  }
  .clients {
    margin-bottom: 70px;
  }
}

@media (max-width: 380px) {
  .video iframe {
    height: 250px;
  }
  .about-text-wrapper {
    margin-top: 20px;
  }
  .about-item {
    height: 100px;
    margin-bottom: 15px;
  }
  .about-item:not(:last-child) {
    margin-bottom: 15px;
  }
  .advantages-box-number-out {
  left: 10px;
      top: 1
      20px;
}
  .about-slider .slick-next,
  .about-slider .slick-prev {
    bottom: -20px;
  }
}

.about-text-wrapper p {
    font-size: 16px;
    line-height: 24px;
    color: #252728;
    opacity: 0.9;
    margin-bottom: 16px;
}
.about-text-wrapper ul {
    font-weight: normal;
    font-size: 16px;
    line-height: 24px;
    color: #252728;
    opacity: .7;
}
.about-text-wrapper li {
    font-size: 16px;
    line-height: 24px;
    color: #252728;
    margin-bottom: 10px;
    position: relative;
}
.about-text-wrapper ul li:after {
    content: "";
    position: absolute;
    top: 10px;
    left: -29px;
    width: 9px;
    height: 9px;
    background-image: url(../img/img-catalog/elipse-list-red.svg);
    background-repeat: no-repeat;
}