body.about.dark-header header{
  background-color: transparent;
}

h2 span:after{
    display: none;
}




:root { --u: calc(100vw / 1440); }

.about-hero {
  position: relative;
  height: 100vh;
  overflow: hidden;
  background: linear-gradient(180deg, #1d3562 0%, #567497 54%, #567497 100%);
}

.about-hero__stage {
  position: absolute;
  inset: 0;
  will-change: transform;
}

.about-hero__world {
  position: absolute;
  left: 50%;
  top: 0;
  width: 1440px;
  height: 1243px;
  transform-origin: 50% 0;
  transform: translate(-50%, 0) scale(1);
  pointer-events: none;
  will-change: transform;

  opacity: 0;
}
.about-hero__world.is-ready {
  opacity: 1;
}

.about-hero-layer {
  position: absolute;
  will-change: transform;
  backface-visibility: hidden;
}
.about-hero-layer > img {
  display: block;
  width: 100%;
  height: 100%;
}
.flip-y { transform: scaleY(-1); }

.about-hero-layer--sky {
  left: 0; top: -200px;
  width: 1440px; height: 1900px;
  background: linear-gradient(180deg, #1d3562 200px, #567497 740.5px, #567497 100%);
}


.about-hero-layer--particles {
  left: 0; top: 0;
  width: 1440px; height: 700px;
  overflow: visible;
}
.about-hero-layer--particles circle { fill: #fff; }  

.about-hero-layer--star {
  left: 0; top: 0;
  width: 1440px; height: 700px;
  opacity: 0;
  pointer-events: none;
}
.star__streak {
  position: absolute;
  left: 0; top: 0;
  width: 130px; height: 1.4px;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(255,250,240,0) 0%, rgba(255,250,240,0.55) 55%, rgba(255,255,255,0.95) 100%);
  transform-origin: 100% 50%;  
  filter: blur(0.35px);
  will-change: transform;
}
.star__head {
  position: absolute;
  left: 0; top: 0;
  width: 3px; height: 3px;
  margin: -1.5px 0 0 -1.5px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 6px 1.5px rgba(255,255,255,0.55);
  will-change: transform;
}


.about-hero-layer--clouds-back {
  left: -181px; top: 224px;
  width: 1803px; height: 1000px;
  overflow: hidden;
}
.cloud, .tile {
  position: absolute;
  display: block;
  object-fit: cover;
}
.rot-180 { transform: rotate(180deg); }

.about-hero-layer--skyline {
  left: 0; top: 458px;
  width: 1442px; height: 600px;
  overflow: hidden;
  opacity: 0.55;
}
.about-hero-layer--skyline .ground {
  position: absolute;
  left: 0; top: 288.64px;
  width: 1442px; height: 320px;
  background: #0a0f19;
}

.about-hero-layer--clouds-front {
  left: -366px; top: 315px;
  width: 2311px; height: 900px;
  overflow: hidden;
}

.about-hero-layer--street {
  left: -41px; top: 648px;
  width: 1523px; height: 595px;
}
.about-hero-layer--street .shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 37.48%, rgba(0,0,0,0.7) 100%);
}

.about-hero-layer--est {
  left: 0; top: 215px;
  width: 1440px;
  margin: 0;
  text-align: center;
  font-weight: 500;
  font-size: 8rem;
  line-height: 1.1632;
  letter-spacing: 0;
  white-space: nowrap;
  color: #fff;
  --est-mask: 0%;   /* 0% = fully visible → 200% = fully absorbed; the band sweeps upward */
  -webkit-mask-image: linear-gradient(to top, rgba(0,0,0,0) calc(var(--est-mask) - 100%), #000 var(--est-mask));
          mask-image: linear-gradient(to top, rgba(0,0,0,0) calc(var(--est-mask) - 100%), #000 var(--est-mask));
  will-change: transform, opacity, filter;
}

.about-hero-layer--city {
  left: 0; top: 0;
  width: 1440px; height: 1243px;
}
.about-hero-layer--ground {
  left: -41px; top: 1242px;  
  width: 1523px; height: 800px;
  background: #fff;
  will-change: auto;
}
.about-hero-layer--buildings {
  left: -41px; top: 243px;
  width: 1523px; height: 599px;
}
.about-hero-layer--cloud-right {
  left: 1143px; top: 468px;
  width: 162px; height: 162px;
  opacity: 0.7;
}
.about-hero-layer--cloud-left {
  left: 297px; top: 530px;
  width: 129px; height: 129px;
  opacity: 0.4;
}
.about-hero-layer--bridge {
  left: -39px; top: 721px;
  width: 1519px; height: 152px;
}


.about-hero__trails {
  position: absolute;
  left: 39px; top: -48px;
  width: 1440px; height: 80px;
  opacity: 0;
  pointer-events: none;
  mix-blend-mode: screen;
}
.trail,
.trail__glow {
  position: absolute;
  left: 0;
  border-radius: 999px;
  will-change: transform;
  backface-visibility: hidden;
}
.trail        { filter: blur(0.5px); opacity: 0.92; }
.trail__glow  { filter: blur(3px); }

.section--next {
  position: relative;
  min-height: 100vh;
  background: #fff;
  color: #0a0f19;
}


.about-hero__copy {
  position: absolute;
  left: calc(40 * var(--u));
  bottom: calc(50 * var(--u));
  width: calc(745 * var(--u));
  z-index: 4;
  display: flex;
  flex-direction: column;
  gap: calc(30 * var(--u));
  color: #fff;
  will-change: transform;
}
.about-hero__title {
  margin: 0;
  font-weight: 500;
  font-size: calc(69 * var(--u));
  line-height: 1.1632;
  letter-spacing: 0;
  white-space: nowrap;
  color: #ffffff;
}
.about-hero__sub {
  margin: 0;
  font-weight: 400;
  font-size: calc(24 * var(--u));
  line-height: 1.1632;
  letter-spacing: 0;
  white-space: nowrap;
  color: #ffffff;
}
.line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.1em;
  margin-bottom: -0.1em;
}
.line__inner {
  display: block;
  transform: translate3d(0, 112%, 0);
  will-change: transform, opacity;
}


@media (max-width: 767px) {
  .site-header { padding: 18px 20px; }
  .site-header__logo { width: 152px; height: 40px; }
  .site-header__nav { gap: 8px; }
  .site-header__nav a:not(.site-header__contact) { display: none; }
  .site-header__nav a { font-size: 14px; padding: 8px 10px; gap: 8px; }
  .site-header__icon { width: 22px; height: 22px; }
  .site-header__icon img { width: 11px; height: 11px; }

  .about-hero__copy {
    left: 20px; right: 20px;
    width: auto;
    bottom: calc(28px + env(safe-area-inset-bottom, 0px));
    gap: 16px;
  }
  .about-hero__title { font-size: clamp(22px, 7vw, 44px); white-space: normal; }
  .about-hero__sub   { font-size: clamp(14px, 4vw, 17px); white-space: normal; }

  .about-hero-layer--est { font-size: 104px; }
  .about-hero__trails { display: block; }
}

@media (prefers-reduced-motion: reduce) {
  .about-hero__trails { display: none; }
}


:root {
  --perspective: 0px;
  --grid-width: 100%;
  --grid-max-width: 300px;
  --grid-item-ratio: 1.2;
  --grid-item-radius: 4px;
  --grid-gap: 2rem;
  --grid-columns: 2;
  --grid-item-translate: 0px;
  --grid-item-height: auto;
}



.tl-staggered-grid-section {
  display: grid;
  place-items: center;
  width: 100%;
  position: relative;
  background-color: #ffffff;
  overflow: hidden;
}

.tl-staggered-grid-section.shadow::after {
  content: '';
  top: 0;
  left: 0;
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: 5000;
  pointer-events: none;

  background-repeat: no-repeat;
  background-size: 100%;
}

.tl-stagger-grid {
  padding: 20vh 0;
  width: var(--grid-width);
  max-width: var(--grid-max-width);
  grid-template-columns: repeat(var(--grid-columns), 1fr);
  position: relative;
  display: grid;
  gap: var(--grid-gap);
  margin-top: 20vh;
  margin-bottom: 10vh;
}

.tl-stagger-grid-item {
  margin: 0;
  position: relative;
  z-index: 1;
  perspective: 800px;
  will-change: transform, opacity;
}

.tl-stagger-grid-item > .tl-stagger-grid-img,
.tl-stagger-grid-imgwrap {
  width: 100%;
  aspect-ratio: var(--grid-item-ratio);
  height: var(--grid-item-height);
  border-radius: var(--grid-item-radius);
  transform-style: preserve-3d;
}

.tl-stagger-grid-imgwrap {
  position: relative;
  overflow: hidden;
  will-change: filter;
}

@media (max-width: 767px) {
  .tl-stagger-grid-imgwrap {
    will-change: auto;
  }
}

.tl-stagger-grid-img {
  background-size: cover;
  background-position: 50% 20%;
  backface-visibility: hidden;
  will-change: transform;
}

.tl-stagger-grid-imgwrap > .tl-stagger-grid-img {
  position: absolute;
  top: calc(-1 * var(--grid-item-translate));
  left: calc(-1 * var(--grid-item-translate));
  height: calc(100% + var(--grid-item-translate) * 2);
  width: calc(100% + var(--grid-item-translate) * 2);
}

.tl-stagger-mark {
  position: fixed;
  width: 100vw;
  top: 50%;
  transform: translateY(-50%);
  left: 0;
  z-index: 50;
  overflow: hidden;
  pointer-events: none;
  mix-blend-mode: difference;
}


.tl-stagger-mark.is-off {
  display: none;
}

.tl-stagger-mark-inner {
  display: flex;
  gap: 3rem;
  width: max-content;
  position: relative;
  transform: translateX(100vw);
  will-change: transform;
}

.tl-stagger-mark-inner span {
  white-space: nowrap;
  font-size: 4.31rem;
  font-weight: 400;
  line-height: 1;
  color: #ffffff;
}

@media (max-width: 1366px) {
  .tl-stagger-mark-inner span{
    font-size: 3.5rem;
  }
}

@media (max-width: 768px) {
  .tl-stagger-mark-inner span{
    font-size: 2.5rem;
  }
}


/* exansion close to work */
.expansion-close-to-work{
  height: 120vh;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: -15vh;
  position: relative;
  z-index: 20;
}

.close-to-work-content {
  width: 100%;
}

.expansion-top-text {
  font-size: 5.56rem;
  line-height: 1.3;
  font-weight: 400;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  column-gap: 2vw;
}

.expansion-top-text > span {
  will-change: transform;
}

.expansion-img-text{
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 2.75rem;
    max-width: 70.5rem;
    margin-left: auto;
    margin-right: auto;
}

.expansion-img-text h3{
  font-size: 4.31rem;
  font-weight: 400;
  text-align: center;
  line-height: 1.2;
}

.expansion-media {
  width: 0;
  height: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 2.5rem;
  
  overflow: hidden;
  will-change: width, height;
  display: block;

  margin-bottom: 1.5rem;
  margin-top: 1rem;
}

.expanstion-inner{
  background-image: url(https://71three.sfo3.cdn.digitaloceanspaces.com/7about.gif);
  background-size: cover; 
  background-position: left;
  background-repeat: no-repeat;
  height: 100%;
  width: 40vw;
}

.mobile-break {
  display: none;
}

@media (max-width: 1366px) {
  .expansion-top-text{
    font-size: 4rem;
  }
}

@media (max-width: 1024px) {
  .expansion-top-text{
    font-size: 3rem;
     row-gap: 15px;
  }
  .mobile-break {
    display: block;
    flex-basis: 100%;
    height: 0;
  }
  .expansion-img-text h3{
    font-size: 2.8rem;
  }
}

@media (max-width: 768px) {
  .expansion-top-text{
    font-size: 60px;
    flex-wrap: wrap;
  }
  .expansion-img-text h3{
    font-size: 42px;
    padding: 0 10px;
  }

  .expanstion-inner{
    width: 70vw;
  }

  .expansion-close-to-work{
    height: 100vh;
  }
}

@media (max-width: 450px) {
  .expansion-top-text{
    font-size: 52px;
    font-weight: 500;
    column-gap: 20px;
    letter-spacing: 0.09em;
    line-height: .7;
    flex-wrap: wrap;
  }
}

@media (max-width: 410px) {
  .expansion-img-text h3{
    font-size: 38px;
  }
   .expansion-top-text{
    font-size: 48px;
    font-weight: 500;
    column-gap: 12px;
    letter-spacing: 0.09em;
  }
}

@media (max-width: 370px) {
    .expansion-top-text{
      font-size: 45px;
      line-height: 52px;
    }
    .expansion-img-text h3{
      font-size: 35px;
    }
}


.selective-design {
  width: 100%;
  position: relative;
}

.selective-scroll-animation {
  width: 100%;
  height: 100vh;
  position: relative;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.selective-text {
  position: absolute;
  right: 2.5rem;
  top: 5rem;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.2;
  color: #ffffff;
  text-transform: uppercase;
  z-index: 10;
}

.selective-tabs {
  position: absolute;
  top: 5rem;
  left: 2.5rem;
  z-index: 10;
}

.selective-tabs .pin-tab {
  font-size: 4.3rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.25);
  line-height: 1.2;
  transition: color 0.4s ease;
  display: block;
}

.selective-tabs .pin-tab.active {
  color: #ffffff;
}

.selective-description {
  position: absolute;
  bottom: 5rem;
  right: 2.5rem;
  max-width: 380px;
  z-index: 10;
  width: 100%;
}

.selective-description p{
  color: #ffffff;
}

.selective-des-item {
  position: absolute;
  bottom: 0;
  right: 0;
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.4s ease, transform 0.4s ease;
  pointer-events: none;
}

.selective-des-item.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.tl-banner-description {
  color: #ffffff;
}

/* Layered Image Stack */
.selective-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: 1;
}

.single-selective-img {
position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  clip-path: inset(0% 0% 0% 0%);
}

.single-selective-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.03) translateY(0px);
  will-change: transform, clip-path;
}

.plx-img-1 { z-index: 3; }
.plx-img-2 { z-index: 2; }
.plx-img-3 { z-index: 1; }



@media (max-width: 1280px){
  .selective-description .tl-banner-description{
    font-size: 1.15em;
  }

  .selective-tabs .pin-tab{
    font-size: 2.5rem;
  }
}


@media (max-width: 768px){
  .selective-text{
    left: 2rem;
    right: unset;
    top: 2rem;
  }
  .selective-tabs{
    left: 2rem;
  }
  .selective-description{
    left: 20px;
    right: 20px;
    bottom: 2.5rem;
    width: auto;
    max-width: none;
  }
  .selective-des-item{
    left: 0;
    right: 0;
    width: 100%;
  }
}

@media (max-width: 450px){
  .selective-text{
    left: 2rem;
    right: unset;
    top: 2rem;
  }
  .selective-tabs .pin-tab{
    font-size: 2rem;
  }
}