.first {
  margin: 0;
  padding: 0;
  padding-top: 100px;
  width: 100%;
  position: relative; 
  background-image: url('../img/seo-fon.svg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat; 
  display: flex;
  z-index: 1;
  flex-direction: column;
}

.first video.bg-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
}

.main-intro {
    position: relative;
    z-index: 1;
}
.web-stack {
    position: absolute;
    z-index: 2;
    bottom: 0;
    right: 0;
}

.heading {
    padding-left: 93px;
   padding-top: 100px;
}

.heading h1 {
    font-size: 100px;
    margin: 0;
    text-align: left;
    text-transform: uppercase;
    font-weight: 500;
}

.heading h2 {
    font-size: 35px;
    margin: 0;
    text-align: left;
    font-weight: 500;
}

.info-heading {
    padding-top: 70px;
    padding-left: 93px;
    width: 970px;
}

.info-heading h3 {
    font-size: 30px;
    font-weight: 400;
    text-align: left;
    margin: 0;

}

.getstarted {
    padding-top: 150px;
    display: flex;
    padding-left: 93px;
    padding-bottom: 115px;
    justify-content: flex-start;
}

.btn-getstarted {
    outline: none;
    cursor: pointer;
    border: none;
    padding: 15px 80px;
    margin: 0;
    font-family: inherit;
    font-size: 30px;
    font-weight: 600;
    position: relative;
    display: inline-block;
    letter-spacing: 0.05rem;
    border-radius: 50px;
    overflow: hidden;
    background: #151516;
    color: #000;
}

.btn-getstarted span {
    position: relative;
    z-index: 2;
    transition: color 0.6s;
}

.btn-getstarted:hover span {
    color: #fff;
}

.btn-getstarted::before,
.btn-getstarted::after {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.btn-getstarted::before {
    content: "";
    background: #fff;
    width: 120%;
    left: -10%;
    transform: skew(30deg);
    transition: transform 0.6s cubic-bezier(0.3, 1, 0.8, 1);
}

.btn-getstarted:hover::before {
    transform: translate3d(100%, 0, 0);
}

.web-stack {
    z-index: 2;
    position: absolute;
    bottom: 0px;
    right: 0px;
    margin-right: -320px;
    margin-bottom: -215px;
}

.web-stack img {
    max-width: 1100px;
    padding-right: 100px;
}

.second {
    position: relative;
    background-color: #151516;
    z-index: 3;
    padding: 100px 200px;
    .infograph {
        display: flex;
        justify-content: space-between;
    }
}

.infograph {
    display: flex;
    justify-content: space-between;
        align-items: center;
    text-align: center;
    gap: 50px;
    font-size: 20px;
}

.leadership {
    display: flex;
    flex-direction: column;
    width: 370px;
    text-transform: uppercase;
    font-weight: 400;
}

.flow {
    display: flex;
    flex-direction: column;
    width: 370px;
    text-transform: uppercase;
    font-weight: 400;
}

.recognition {
    display: flex;
    flex-direction: column;
    width: 370px;
    text-transform: uppercase;
    font-weight: 400;
}

.roi {
    display: flex;
    flex-direction: column;
    width: 370px;
    text-transform: uppercase;
    font-weight: 400;
}

.conte {
    display: flex;
    flex-direction: column;
    width: 370px;
    text-transform: uppercase;
    font-weight: 400;
}

.count-up {
  font-size: 32px;  
  font-weight: 500;
  transition: all 0.3s ease-in-out;
}

.third {
    padding: 100px 150px;
    padding-bottom: 0;
}

.third h1 {
    font-size: 70px;

}

.lines {
    padding-right: 250px;
    padding-left: 240px;
}


.lines-block {
    display: flex;
    justify-content: space-around;
    align-items: center;
    gap: 50px;
    padding: 60px 0px;
}

.lines-block h2 {
    font-family: 'Mongolian Baiti', sans-serif;
    font-size: 200px;
    font-weight: 400;
}

.text-lines {
    justify-content: left;
}

#left {
    text-align: right;
    padding-right: 40px;
}

#right {
    text-align: left;
    padding-left: 40px;
}

.text-lines span {
    font-size: 35px;
    font-weight: 600;

}

.text-lines p {
    padding-top: 50px;
    font-size: 30px;
    font-weight: 400;
}


.right-block, .left-block {
  position: relative;
  transition: border-color 0.8s cubic-bezier(0.4,0,0.2,1), box-shadow 0.8s cubic-bezier(0.4,0,0.2,1);
}

.right-block {
  position: relative;
  border: none;
}
.right-block::after {
  content: '';
  position: absolute;
  left: 0; top: 0;
  width: 4px; height: 100%;
  background: #E647FF;
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 2;
  opacity: 1;
}
.right-block.visible::after {
  transform: scaleY(1);
}

.left-block {
  position: relative;
  border: none;
}
.left-block::after {
  content: '';
  position: absolute;
  left: 0; top: 0;
  width: 100%; height: 4px;
  background: #E647FF;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 2;
  opacity: 1;
}
.left-block.visible.step-1::after {
  transform: scaleX(1);
}
.left-block::before {
  content: '';
  position: absolute;
  right: 0; top: 0px;
  width: 4px; height: 100%;
  background: #E647FF;
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 2;
  opacity: 1;
}
.left-block.visible.step-2::before {
  transform: scaleY(1);
}
.left-block .bottom-glow {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  width: 100%; height: 4px;
  background: #E647FF;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 10;
  pointer-events: none;
  opacity: 1;
}
.left-block.visible.step-3 .bottom-glow {
  transform: scaleX(1);
}
.left-block .right-line {
  position: absolute;
  right: 0; top: 0;
  width: 4px; height: 100%;
  background: #E647FF;
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 2;
  opacity: 1;
  pointer-events: none;
}
.left-block.visible.step-2 .right-line {
  transform: scaleY(1);
}


.fourth {
    display: flex;
    justify-content: center;
    padding: 100px 200px;
    padding-top: 0;
}

.blue-fon {
    justify-content: center;
    background-color: #E647FF;
    width: 990px;
    padding-left: 137px;
    padding-top: 200px;
    padding-right: 40px;
}

.blue-fon h2 {
    font-size: 50px;
    font-weight: 600;
}

.blue-fon p {
    padding-top: 60px;
    font-size: 30px;
}

.order {
    padding-top: 150px;
    display: flex;
    padding-bottom: 150px;
    justify-content: center;
    align-items: center;
}

.order-btn {
  background-color: #fff;
  display: flex;
  font-size: 30px;
  font-weight: 600;
  justify-content: center;
  align-items: center;
  gap: 50px;
  text-decoration: none;
  color: #151516;
  padding: 18px 44px;
  border-radius: 55px;
  transition: transform 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}

.order-btn:hover {
  transform: scale(1.08);
}

.order-btn img {
  transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.order-btn:hover img {
  transform: rotate(-12deg) translateY(-6px) translateX(6px);
}

.result {
    background-color: #222223;
    width: 935px;
}

.result h2 {
    font-size: 50px;
    align-items: center;
    padding-top: 70px;
    padding-bottom: 40px;
    text-align: center;
    text-transform: uppercase;
}

.result ul {
    padding-left: 100px;
}

.result li {
    font-size: 25px;
    font-weight: 500;
    padding-right: 130px;
    padding-bottom: 30px;
}

.result p {
    font-size: 25px;
    padding-left: 44px;
    padding-bottom: 130px;
}


@media (min-width: 1367px) and (max-width: 1600px) {
    .heading h1 {
      font-size: 90px;
    }
    
    .heading h2 {
      font-size: 32px;
    }
    
    .info-heading h3 {
      font-size: 26px;
    }
    
    .btn-getstarted {
      font-size: 26px;
      padding: 12px 70px;
    }
    
    .getstarted {
      padding-top: 200px;
    }
  
    .web-stack {
      width: 600px;
      max-width: 600px;
      overflow: hidden;
      box-sizing: border-box;
      padding: 0;
      margin: 0;
    }
    
    .web-stack img {
      max-width: 600px;
      width: 100%;
      height: auto;
      padding: 0;
      margin: 0;
  
    }
    
    .second {
      padding: 80px 150px;
    }
    
    .infograph {
      gap: 10px;
    }
    
    .leadership, .flow, .recognition, .roi, .conte {
      width: 320px;
      font-size: 17px;
    }
    
    .count-up {
      font-size: 32px;
    }
    
    .leadership-img img,
    .flow-img img,
    .recognition-img img,
    .roi-img img,
    .conte-img img {
      width: 50px;
      height: 50px;
    }
    
    .third {
      padding: 70px 100px 0 100px;
    }
    
    .third h1 {
      font-size: 50px;
    }
    
    .lines {
      padding-right: 150px;
      padding-left: 150px;
    }
    
    .lines-block h2 {
      font-size: 90px;
    }
    
    .text-lines span {
      font-size: 30px;
    }
    
    .text-lines p {
      font-size: 24px;
    }
    
    .lines-block img {
      width: 200px;
      height: 200px;
    }
    
    #last-block {
      padding-bottom: 0;
    }
    
    .fourth {
      padding: 0 150px 80px 150px;
    }
    
    .blue-fon {
      display: flex;
      flex-direction: column;
      justify-content: center;
      width: 900px;
      padding-left: 120px;
      box-sizing: border-box;
      overflow: hidden;
      padding: 40px;
    }
    
    .blue-fon h2 {
      font-size: 44px;
    }
    
    .blue-fon p {
      font-size: 26px;
    }
    .order {
      padding-bottom: 0;
    }
    
    .order-btn {
      font-size: 26px;
      padding: 15px 40px;
    }
    
    .result {
      width: 850px;
      padding: 40px;
      box-sizing: border-box;
    }
    
    .result h2 {
      font-size: 44px;
      padding-top: 20px;
    }
    
    .result li {
      font-size: 22px;
    }
    
    .result p {
      font-size: 22px;
      padding-bottom: 0;
    }
  }
  
 
  @media (min-width: 2560px) {
    .web-stack {
      width: 800px;
      max-width: 800px;
      overflow: hidden;
      box-sizing: border-box;
      padding: 0;
      margin: 0;
    }
    
    .web-stack img {
      max-width: 800px;
      width: 100%;
      height: auto;
      padding: 0;
      margin: 0;
    }
  }
  
  
  @media (min-width: 1024px) and (max-width: 1366px) {
    .heading h1 {
      font-size: 80px;
    }
    
    .heading h2 {
      font-size: 28px;
    }
    
    .info-heading {
      width: 800px;
    }
    
    .info-heading h3 {
      font-size: 24px;
    }
    
    .btn-getstarted {
      font-size: 24px;
      padding: 10px 60px;
    }
    
    .web-stack {
      margin: 0;
      padding: 0;
      width: 300px;
      max-width: 300px;
      overflow: hidden;
      position: absolute;
      bottom: 0;
      right: 0;
    }
    
    .web-stack img {
      max-width: 300px;
      width: 100%;
      height: auto;
      padding: 0;
      
    }
    
    .second {
      padding: 70px 120px;
    }
    
    .infograph {
      gap: 0px;
    }
    
    .leadership, .flow, .recognition, .roi, .conte {
      width: 280px;
      font-size: 12px;
    }
    
    .count-up {
      font-size: 25px;
    }
    
    .leadership-img img,
    .flow-img img,
    .recognition-img img,
    .roi-img img,
    .conte-img img {
      width: 50px;
      height: 50px;
    }
    
    .third {
      padding: 70px 100px 0 100px;
    }
    
    .third h1 {
      font-size: 50px;
    }
    
    .lines {
      padding-right: 10px;
      padding-left: 10px;
    }
    
    .lines-block h2 {
      font-size: 90px;
    }
    
    .text-lines span {
      font-size: 20px;
    }
    
    .text-lines p {
      font-size: 16px;
    }
    
    .lines-block img {
      width: 100px;
      height: 100px;
    }
    
    #last-block {
      padding-bottom: 0;
    }
    
    .fourth {
      padding: 0 90px 70px 90px;
    }
    
    .blue-fon {
      width: 800px;
      padding-left: 50px;
      box-sizing: border-box;
      overflow: hidden;
      padding-top: 35px;

      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    
    .blue-fon h2 {
      font-size: 32px;
    }
    
    .blue-fon p {
      font-size: 18px;
      text-align: left;
    }
    
    .order-btn {
      font-size: 15px;
      padding: 12px 35px;
      gap: 15px;
    }
    
    .order {
      padding-bottom: 0;
      padding-top: 50px;
    }

    .order-btn img {
      width: 30px;
      height: 30px;
    }
    
    .result {
      width: 750px;
      padding: 35px;
      box-sizing: border-box;
      
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    
    .result h2 {
      font-size: 32px;
      padding-top: 20px;
    }
    
    .result ul {
      padding-left: 50px;
    }
    
    .result li {
      font-size: 16px;
      padding-right: 0px;
    }
    
    .result p {
      font-size: 16px;
      padding-bottom: 0;
      text-align: left;
    }
  }
  
  
  @media (min-width: 768px) and (max-width: 1023px) {
    .first {
      padding-top: 60px;
    }
    
    .heading {
      padding-left: 40px;
      padding-top: 60px;
    }
    
    .heading h1 {
      font-size: 60px;
    }
    
    .heading h2 {
      font-size: 24px;
    }
    
    .info-heading {
      padding-left: 40px;
      width: 100%;
      box-sizing: border-box;
      padding-right: 40px;
    }
    
    .info-heading h3 {
      font-size: 20px;
      padding-top: 40px;
    }
    
    .getstarted {
      padding-left: 40px;
      padding-top: 80px;
      padding-bottom: 60px;
    }
    
    .btn-getstarted {
      font-size: 20px;
      padding: 8px 50px;
    }
    
    .web-stack {
      margin: 0;
      padding: 0;
      width: 200px;
      overflow: hidden;
    }
    
    .web-stack img {
      max-width: 600px;
      padding-right: 50px;
      width: 100%;
      height: auto;
    }
    
    .second {
      padding: 60px 40px;
    }
    
    .infograph {
      flex-direction: row;
      gap: 10px;
      justify-content: center;
      flex-wrap: nowrap;
    }
    
    .leadership, .flow, .recognition, .roi, .conte {
      width: auto;
      font-size: 12px;
      min-width: auto;
      flex: 1;
    }
    
    .count-up {
      font-size: 18px;
    }
    
    .leadership-img img,
    .flow-img img,
    .recognition-img img,
    .roi-img img,
    .conte-img img {
      width: 30px;
      height: 30px;
    }
    
    .third {
      padding: 60px 40px 0 40px;
    }
    
    .third h1 {
      font-size: 40px;
    }
    
    .lines {
      padding-right: 20px;
      padding-left: 20px;
    }
    
    .lines-block {
      gap: 30px;
      padding: 40px 0px;
    }
    
    .lines-block h2 {
      font-size: 80px;
    }
    
    .text-lines span {
      font-size: 24px;
    }
    
    .text-lines p {
      font-size: 18px;
      padding-top: 30px;
    }
    
    #last-block {
      padding-bottom: 20px;
    }
    
    .lines-block img {
      width: 100px;
      height: 100px;
    }
    
    #left, #right {
      padding: 0;
    }
    
    .right-block {
      padding: 20px;
    }
    
    .left-block {
      padding: 20px;
    }
    
    .fourth {
      flex-direction: column;
      padding: 0 40px 60px 40px;
    }
    
    .blue-fon {
      width: 100%;
      padding: 100px 40px;
      box-sizing: border-box;
      overflow: hidden;
    }
    
    .blue-fon h2 {
      font-size: 40px;
    }
    
    .blue-fon p {
      font-size: 25px;
    }
    
    .order {
      padding-top: 40px;
      padding-bottom: 0px;
    }
    
    .order-btn {
      font-size: 25px;
      padding: 10px 30px;
      gap: 30px;
    }
    
    .result {
      width: 100%;
      padding: 30px;
      box-sizing: border-box;
    }
    
    .result h2 {
      font-size: 40px;
      padding-top: 20px;
    }
    
    .result ul {
      padding-left: 40px;
    }
    
    .result li {
      font-size: 25px;
      padding-right: 40px;
    }
    
    .result p {
      font-size: 25px;
      padding-left: 20px;
      padding-bottom: 0;
    }
  }
  
  
  @media (max-width: 767px) {
    .first {
      padding-top: 100px;
    }
    
    .heading {
      padding-left: 20px;
      padding-top: 40px;
    }
    
    .heading h1 {
      font-size: 40px;
    }
    
    .heading h2 {
      font-size: 18px;
    }
    
    .info-heading {
      padding-left: 20px;
      width: 100%;
      box-sizing: border-box;
      padding-right: 20px;
      padding-top: 0;
    }
    
    .info-heading h3 {
      font-size: 16px;
      padding-top: 30px;
    }
    
    .getstarted {
      padding-left: 20px;
      padding-top: 80px;
      padding-bottom: 40px;
    }
    
    .btn-getstarted {
      font-size: 16px;
      padding: 6px 40px;
    }
    
    .web-stack {
      margin: 0;
      padding: 0;
      width: 200px;
      overflow: hidden;
    }
    
    .web-stack img {
      max-width: 150px;
      width: 100%;
      height: auto;
    }
    
    .second {
      padding: 40px 20px;
    }
    
    .infograph {
      flex-direction: row;
      gap: 8px;
      justify-content: center;
      flex-wrap: wrap;
    }
    
    .leadership, .flow, .recognition, .roi, .conte {
      width: auto;
      font-size: 10px;
      min-width: auto;
      flex: 1;
    }
    
    .count-up {
      font-size: 16px;
    }
    
    .leadership-img img,
    .flow-img img,
    .recognition-img img,
    .roi-img img,
    .conte-img img {
      width: 30px;
      height: 30px;
    }
    
    .third {
      padding: 40px 20px 0 20px;
    }
    
    .third h1 {
      font-size: 32px;
    }
    
    .lines {
      padding-right: 10px;
      padding-left: 10px;
    }
    
    .lines-block {
      gap: 20px;
      padding: 30px 0px;
    }
    
    .lines-block h2 {
      font-size: 60px;
    }
    
    .text-lines span {
      font-size: 20px;
    }
    
    .text-lines p {
      font-size: 16px;
      padding-top: 20px;
    }
    
    #last-block {
      padding-bottom: 0;
    }
    
    .lines-block img {
      width: 100px;
      height: 100px;
    }
    
    #left, #right {

      padding: 0;
    }
    
    .right-block {
      padding: 10px;
    }
    
    .left-block {
      padding: 10px;
    }
    
    .fourth {
      flex-direction: column;
      padding: 0 20px 40px 20px;
    }
    
    .blue-fon {
      width: 100%;
      padding: 60px 20px;
      box-sizing: border-box;
      overflow: hidden;
    }
    
    .blue-fon h2 {
      font-size: 28px;
    }
    
    .blue-fon p {
      font-size: 16px;
    }
    
    .order {
      padding-top: 60px;
      padding-bottom: 60px;
    }
    
    .order-btn {
      font-size: 16px;
      padding: 8px 25px;
      gap: 20px;
    }
    
    .result {
      width: 100%;
      padding: 25px;
      box-sizing: border-box;
    }
    
    .result h2 {
      font-size: 28px;
      padding-top: 20px;
    }
    
    .result ul {
      padding-left: 20px;
    }
    
    .result li {
      font-size: 16px;
      padding-right: 20px;
    }
    
    .result p {
      font-size: 16px;
      padding-left: 10px;
    }
  }
  
  
  @media (max-width: 480px) {
    .heading h1 {
      font-size: 40px;
    }
    
    .heading h2 {
      font-size: 20px;
    }
    
    .info-heading h3 {
      font-size: 14px;
    }
    
    .btn-getstarted {
      font-size: 14px;
      padding: 5px 30px;
    }
    
    .web-stack {
      margin: 0;
      padding: 0;
      width: 150px;
      overflow: hidden;
    }
    
    .web-stack img {
      max-width: 150px;
      width: 100%;
      height: auto;
    }
    
    .leadership, .flow, .recognition, .roi, .conte {
      font-size: 14px;
    }
    
    .count-up {
      font-size: 18px;
    }
    
    .third h1 {
      font-size: 28px;
    }
    
    .lines-block h2 {
      font-size: 50px;
    }
    
    .text-lines span {
      font-size: 18px;
    }
    
    .text-lines p {
      font-size: 14px;
    }
    
    .blue-fon h2 {
      font-size: 30px;
    }
    
    .blue-fon p {
      font-size: 18px;
    }

    .order {
      padding-bottom: 0;
    }
    
    .order-btn {
      font-size: 18px;
      padding: 6px 20px;
    }
    
    .result h2 {
      font-size: 30px;
      padding-top: 20px;
    }
    
    .result li {
      font-size: 18px;
    }
    
    .result p {
      font-size: 18px;
      padding-bottom: 0;
    }
  }

.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1.2s cubic-bezier(0.4, 0, 0.2, 1), transform 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.left-block::before,
.right-block::before {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  background-color: #E647FF;
  border-radius: 50%;
  top: 50%;
  transform: translateY(-50%);
}

.left-block::before {
  right: -7px;
}

.right-block::before {
  left: -7px;
}