.first {
  margin: 0;
  padding: 0;
  padding-top: 100px;
  width: 100%;
  position: relative; 

  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-left: 93px;
    width: 970px;
}

.info-heading h3 {
    font-size: 30px;
    font-weight: 400;
    text-align: left;
    margin: 0;
    padding-top: 70px;
}

.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);
}

.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: 100px;
    font-size: 20px;
}

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

.optimization {
    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;
}

.potential {
    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 200px;
    padding-bottom: 0;
}

.third h1 {
    font-size: 70px;
}

.lines {
    padding-right: 110px;
    padding-left: 30px;
}


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

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

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

#left {
    padding-right: 40px;
}

#right {

    padding-left: 40px;
}

.text-lines span {
    font-size: 38px;
    font-weight: 600;

}

.text-lines li {
    padding-top: 50px;
    font-size: 35px;
    font-weight: 400;
    width: 750px;
}

.icon{

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

#ppc li {
    padding-bottom: 100px;
}

.icon li {
    padding-bottom: 20px;
    font-size: 30px;
    font-weight: 400;
}

.right-block {
  position: relative;
  border-left: none;
}
.right-block::after {
  content: '';
  position: absolute;
  left: 0; top: 0;
  width: 4px; height: 100%;
  background: #FF2540;
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 2;
  opacity: 1;
}

.last-block::after {
  height: 111%;
}
.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: #FF2540;
  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 .right-line {
  position: absolute;
  right: 0; top: 0;
  width: 4px; height: 100%;
  background: #FF2540;
  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);
}

.left-block .bottom-glow {
  position: absolute;
  right: 0; bottom: 0;
  width: 100%; height: 4px;
  background: #FF2540;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 2;
  opacity: 1;
  pointer-events: none;
}
.left-block.visible.step-3 .bottom-glow {
  transform: scaleX(1);
}
.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, .right-block {
  position: relative;
  padding: 5px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.left-block::before,
.right-block::before {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  background-color: #FF2540;
  border-radius: 50%;
  top: 50%;
  transform: translateY(-50%);
}


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


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

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

.blue-fon {
    justify-content: center;
    align-items: center;
    background-color: #FF2540;
    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;
    height: 874px;
}

.result h2 {
    font-size: 50px;
    font-weight: 600;
    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: 480px;
    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; }
  .target, .optimization, .recognition, .potential {
    width: 320px;
    font-size: 25px;
  }
  .count-up { font-size: 32px; }
  .target-img img,
  .optimization-img img,
  .recognition-img img,
  .potential-img img {
    width: 50px;
    height: 50px;
  }
  .third { padding: 70px 100px 0 100px; }
  .third h1 { font-size: 50px; }

  .lines-block h2 { font-size: 90px; }
  .text-lines span { font-size: 30px; }
  .text-lines li, .icon li { font-size: 24px; }
  .lines-block img { width: 200px; height: 200px; }
  #last-block { padding-bottom: 0; }
  .fourth { padding: 0 150px 80px 130px; }
  .blue-fon {
    width: 900px;
    padding-left: 120px;
    box-sizing: border-box;
    overflow: hidden;
  }
  .blue-fon h2 { font-size: 44px; }
  .blue-fon p { font-size: 26px; }
  .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; }
  .last-block::after {
    height: 140%;
  }
  .left-block, .right-block {
    padding: 30px;
    padding-top: 20px;
    padding-bottom: 20px;
  }
}


@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;
  }
  .blue-fon {width: 100%;}
  .result {width: 100%;}
  .fourth { height: 100%; }
  .order { padding-bottom: 220px;}
}


@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; }
  .target, .optimization, .recognition, .potential {
    width: 280px;
    font-size: 18px;
  }
  .count-up { font-size: 25px; }
  .target-img img,
  .optimization-img img,
  .recognition-img img,
  .potential-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: 20px; }
  .text-lines li, .icon li { font-size: 16px; }
  .lines-block img { width: 100px; height: 100px; }
  #last-block { padding-bottom: 0; }
  .fourth { padding: 0 120px 70px 110px; height: 500px;}
  .blue-fon {
    width: 800px;
    padding-left: 50px;
    box-sizing: border-box;
    overflow: hidden;
    text-align: center;
    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-btn img { width: 30px; height: 30px; }
  .result {
    width: 750px;
    padding: 35px;
    box-sizing: border-box;
    text-align: center;
    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;
    padding-top: 0;
  }
  .info-heading h3 { font-size: 20px; padding-top: 30px; }
  .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: 150px;
    overflow: hidden;
  }
  .web-stack img {
    max-width: 600px;
    padding-right: 50px;
    width: 100%;
    height: auto;
  }
  .second { padding: 60px 40px; }
  .infograph {
    flex-direction: row;
    gap: 0px;
    justify-content: center;
    flex-wrap: nowrap;
  }
  .target, .optimization, .recognition, .potential {
    width: auto;
    font-size: 17px;
    min-width: auto;
    flex: 1;
  }
  .count-up { font-size: 18px; }
  .target-img img,
  .optimization-img img,
  .recognition-img img,
  .potential-img img {
    width: 50px;
    height: 50px;
  }
  .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 li, .icon li { font-size: 14px; }
  #last-block { padding-bottom: 0; }
  .lines-block img { width: 100px; height: 100px; }
  #left, #right { text-align: center; padding: 0; gap: 10px; }
  .right-block { padding: 10px; }
  .left-block { padding: 10px; }
  .fourth { flex-direction: column; padding: 0 40px 60px 40px; }
  .blue-fon {
    width: 100%;
    padding: 30px;
    box-sizing: border-box;
    overflow: hidden;
  }
  .blue-fon h2 { font-size: 40px; }
  .blue-fon p { font-size: 24px; }
  .order { padding-top: 80px; padding-bottom: 0px; }
  .order-btn { font-size: 20px; 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: 24px; padding-right: 40px; }
  .result p { font-size: 24px; 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: 150px;
    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;
  }
  .target, .optimization, .recognition, .potential {
    width: auto;
    font-size: 10px;
    min-width: auto;
    flex: 1;
  }
  .count-up { font-size: 16px; }
  .target-img img,
  .optimization-img img,
  .recognition-img img,
  .potential-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 li, .icon li { font-size: 12px; }
  #last-block { padding-bottom: 0; }
  .lines-block img { width: 100px; height: 100px; }
  #left, #right { text-align: center; padding: 0; gap: 10px; }
  .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: 0px; }
  .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: 32px; }
  .heading h2 { font-size: 16px; }
  .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: 300px;
    width: 100%;
    height: auto;
  }
  .target, .optimization, .recognition, .potential { 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 li, .icon li { font-size: 14px; }
  .blue-fon h2 { font-size: 30px; }
  .blue-fon p { font-size: 16px; }
  .order-btn { font-size: 16px; padding: 6px 20px; }
  .result h2 { font-size: 30px; padding-top: 20px; }
  .result li { font-size: 16px; }
  .result p { font-size: 16px; padding-bottom: 0;}
}

@media (min-width: 1024px) and (max-width: 1366px) {
  .lines {
    padding-left: 10px;
    padding-right: 10px;
  }
  .lines-block {
    gap: 10px;
    padding: 20px 0;
  }
  .right-block, .left-block {
    padding: 30px;
    padding-top: 20px;
    padding-bottom: 20px;
    margin: 0;
    max-width: 100vw;
    box-sizing: border-box;
  }
  #left, #right {
    text-align: left;
    padding: 0;
  }
  .result {
    text-align: left;
    height: 100%;
  }
  .blue-fon {
    height: 100%;
  }
  .last-block::after {
    height: 140%;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .lines {
    padding-left: 5px;
    padding-right: 5px;
  }
  .lines-block {
    gap: 8px;
    padding: 10px 0;
  }
  .right-block, .left-block {
    padding: 30px;
    margin: 0;
    max-width: 100vw;
    box-sizing: border-box;
  }
  #left, #right {
    text-align: left;
    padding: 0;
  }
  .result {
    text-align: left;
    height: 100%;
  }
  .last-block::after {
    height: 140%;
  }
}

@media (max-width: 767px) {
  .lines {
    padding-left: 2px;
    padding-right: 2px;
  }
  .lines-block {
    gap: 4px;
    padding: 5px 0;
  }
  .right-block, .left-block {
    padding: 2px;
    padding-top: 4px;
    padding-bottom: 4px;
    margin: 0;
    max-width: 100vw;
    box-sizing: border-box;
  }
  #left, #right {
    text-align: left;
    padding: 0;
  }
  .result {
    text-align: left;
    height: 100%;
  }
  .lines-block img {
    max-width: 60px;
    height: auto;
  }
  .text-lines li {
    padding-top: 20px;
  }
  .last-block::after {
    height: 131%;
  }
}

@media (max-width: 480px) {
  .lines {
    padding-left: 0;
    padding-right: 0;
  }
  .lines-block {
    gap: 2px;
    padding: 2px 0;
  }
  .right-block, .left-block {
    padding: 20px;
    margin: 0;
    max-width: 100vw;
    box-sizing: border-box;
  }
  #left, #right {
    text-align: left;
    padding: 0;
  }
  .result {
    text-align: left;
    height: 100%;
  }
  .lines-block img {
    max-width: 100px;
    height: auto;
  }
  .last-block::after {
    height: 131%;
  }
} 

@media (max-width: 1366px) {
  .lines-block,
  .text-lines,
  .icon,
  .lines-block ul,
  .lines-block li,
  .text-lines li,
  .icon li {
    max-width: 100%;
    box-sizing: border-box;
    overflow-wrap: break-word;
    word-break: break-word;
    white-space: normal;
  }
  .lines-block {
    width: 100%;
    margin: 0;
    padding-left: 0;
    padding-right: 0;
  }
  .text-lines li,
  .icon li {
    width: 100%;
    min-width: 0;
    padding-left: 0;
    padding-right: 0;
    margin-left: 0;
    margin-right: 0;
  }
} 

li {
  list-style-position: inside;
} 

#left, #right {
  gap: 10px;
} 

.blue-fon.fade-in,
.result.fade-in {
  opacity: 0;
  transition: opacity 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.blue-fon.fade-in.visible,
.result.fade-in.visible {
  opacity: 1;
} 

.blue-fon.fade-in:not(.visible),
.result.fade-in:not(.visible) {
  opacity: 1 !important;
}