.process {
  --p: 1;
  padding-block: clamp(72px, 12vh, 150px);
}

.process__stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-content: center;
  gap: clamp(40px, 8vh, 88px);
}

.process__track {
  position: relative;
  width: min(100% - 2 * var(--gutter), var(--max));
  margin-inline: auto;
}

.process__steps {
  display: grid;
  gap: 48px;
}

.process__line {
  display: none;
}

.step {
  --a: 1;
  position: relative;
  display: grid;
  align-content: start;
  gap: 14px;
  opacity: calc(0.28 + var(--a) * 0.72);
  transform: translateY(calc((1 - var(--a)) * 28px));
}

.step__dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--sea-top);
  background: var(--abyss);
  position: relative;
  z-index: 1;
}

.step__dot::after {
  content: "";
  position: absolute;
  inset: 2px;
  border-radius: 50%;
  background: var(--sun);
  transform: scale(var(--a));
}

.step__no {
  color: var(--ink-soft);
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  margin-top: 18px;
}

.step h3 {
  font-size: var(--step-3);
}

.step p {
  max-width: 26ch;
  color: var(--ink-soft);
  font-size: var(--step-1);
  line-height: 1.4;
}

.motion .process {
  --p: 0;
  height: calc(var(--shift, 0) * 1px + 100svh);
  padding: 0;
}

.motion .process__stage {
  position: sticky;
  top: 0;
  height: 100svh;
  overflow: hidden;
  padding-top: var(--header);
}

.motion .process__steps {
  display: flex;
  gap: clamp(40px, 6vw, 96px);
}

.motion .process__track {
  width: max-content;
  margin: 0;
  padding-inline: max(var(--gutter), (100vw - var(--max)) / 2) max(var(--gutter), 12vw);
  transform: translateX(calc(var(--p) * var(--shift, 0) * -1px));
}

.motion .step {
  --a: clamp(0, calc((var(--p) * 3.4 - var(--k) + 0.7) * 2.2), 1);
  width: clamp(250px, 30vw, 400px);
  flex: none;
}

.motion .process__line {
  display: block;
  position: absolute;
  top: 7px;
  left: max(var(--gutter), (100vw - var(--max)) / 2);
  right: max(var(--gutter), 12vw);
  height: 2px;
  background: rgb(99 194 242 / 0.18);
}

.motion .process__line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--sea);
  transform-origin: 0 50%;
  transform: scaleX(clamp(0, calc(var(--p) * 1.15), 1));
}

@media (max-width: 720px) {
  .motion .step {
    width: 76vw;
  }
}