/* ===========================
   Reset & Base
   =========================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: #0d1117;
  font-family: sans-serif;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 3rem;
}

/* ===========================
   Section — 500dvh for 5 steps
   =========================== */
#tergeting-section {
  height: 300dvh;
  position: relative;
}

/* ===========================
   Sticky wrapper
   =========================== */
.sticky-wrapper {
  position: sticky;
  top: 0;
  height: 100dvh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* ===========================
   Heading
   =========================== */
.section-header {
  margin-bottom: 2.5rem;
}

.section-header h2 {
  font-family: "Recoleta", Georgia, serif;
  font-size: clamp(1.8rem, 4.5vw, 4rem);
  font-weight: 400;
  background:linear-gradient(to bottom, #a0b6fd 0%, #7aa9fd 40%, #559dfd 60%, #1f8afd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.15;
}

#tergeting-section.bg-color-active .section-header h2 {
  background: linear-gradient(to bottom, #a0b6fd 0%, #7aa9fd 40%, #559dfd 60%, #1f8afd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===========================
   Three-column layout
   =========================== */
.timeline-layout {
  display: grid;
  grid-template-columns: 1fr 1fr 48px;
  align-items: center;
  gap: 0 3rem;
}

/* ===========================
   LEFT — Image
   =========================== */
.image-col {
  display: flex;
  align-items: center;
  justify-content: center;
}

.timeline-images {
  position: relative;
  width: 100%;
  height: 420px;
}

.timeline-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: left center;
  opacity: 0;
  /* Incoming: starts above, fades in as it slides down into place */
  transform: translateY(-28px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

.timeline-image.active {
  opacity: 1;
  transform: translateY(0);
}

/* Outgoing image — slides down and fades out */
.timeline-image.leaving {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}


.content-col {
  position: relative;
}

/* Fade masks — top & bottom */
.content-col::before,
.content-col::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 140px;
  z-index: 2;
  pointer-events: none;
}

.content-col::before {
  top: 0;
  background: linear-gradient(
    to bottom,
    #0d1117 0%,
    #0d1117 20%,
    rgba(13,17,23,0.9) 50%,
    rgba(13,17,23,0.4) 80%,
    transparent 100%
  );
}

.content-col::after {
  bottom: 0;
  background: linear-gradient(
    to top,
    #0d1117 0%,
    #0d1117 20%,
    rgba(13,17,23,0.9) 50%,
    rgba(13,17,23,0.4) 80%,
    transparent 100%
  );
}

/* Clip window — overflow hidden, NO scroll-behavior */
.content-scroll-area {
  height: 600px;
  overflow: hidden;
  position: relative;
}

/*
  Inner list — JS moves this with translateY.
  CSS transition handles the smooth animation.
  This never touches window scroll at all.
*/
.timeline-inner-list {
  position: relative;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

/* ── Every item — inactive = dimmed ── */
.timeline-content-item {
  padding: 2rem 0;
  cursor: pointer;
  transition: opacity 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}



/* Active item (scroll position tracked by JS) */
.timeline-content-item.active {}

/* ── Heading ── */
.timeline-content-item h4 {
    font-family: "Recoleta", serif;
    font-size: clamp(22px, 3.4vw, 2.3dvw);
    font-weight: 400;
    background: linear-gradient(180deg, #61ffe6 14.94%, #038c75 85.06%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

#tergeting-section.bg-color-active .timeline-content-item h4 {
  background: linear-gradient(to bottom, #a0b6fd 0%, #7aa9fd 40%, #559dfd 60%, #1f8afd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Paragraph ── */
.timeline-content-item p{
    font-family: Poppins, sans-serif;
    font-size: clamp(0.875rem, 2vw, 1.46dvw);
    font-weight: 300;
    color: #ffffff99;
}

/* ===========================
   RIGHT — line + dots
   =========================== */
.line-col {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 420px;
}

.timeline-line {
  position: relative;
  width: 2px;
  height: 100%;
  background: rgba(255, 255, 255, 0.12);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 4px 0;
}

.timeline-line-progress {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: rgba(255, 255, 255, 0.525) ;
  transition: height 0.55s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 2px;
}

#tergeting-section.bg-color-active .timeline-line-progress {
  background: linear-gradient(180deg, #a0b6fd, #1f8afd);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  position: relative;
  z-index: 2;
  cursor: pointer;
  transition: width  0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
              height 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
              background 0.4s ease,
              box-shadow 0.4s ease;
  flex-shrink: 0;
}

.dot.active {
  width: 14px;
  height: 14px;
  background: linear-gradient(180deg, #61ffe6 14.94%, #038c75 85.06%);
  box-shadow: 0 0 0 5px rgba(97, 255, 230, 0.15),
              0 0 14px rgba(97, 255, 230, 0.3);
}

.dot.isFinished {
  background: rgba(255, 255, 255, 0.5);
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 900px) {
  .timeline-layout {
    grid-template-columns: 1fr;
    gap: 2rem 0;
  }

  .line-col { height: auto; }

  .timeline-line {
    flex-direction: row;
    width: 80%;
    height: 2px;
    margin: 0 auto;
    justify-content: space-between;
  }

  .timeline-line-progress {
    top: 0; left: 0;
    width: 0%;
    height: 100%;
    transition: width 0.55s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .timeline-images,
  .content-scroll-area,
  .line-col { height: 500px; }

  .section-header h2 {
    font-size: clamp(1.5rem, 6vw, 2.5rem);
  }

  .content-col::before,
  .content-col::after { height: 100px; }
}
.pt10{
margin-top: 80px;
}
.pb2{
  padding-top: 80px;
    padding-bottom: 250px;
}
.pb3{
    padding-bottom: 220px;

}.pb4{
    padding-bottom: 200px;

}
.pb5{
  padding-bottom: 250px;
}