.journey {
  position: relative;
  padding-block: var(--space-6);
  border-block-start: 1px solid var(--color-border);
}

.journey__intro {
  max-width: 42rem;
  margin-block-end: var(--space-5);
}

.journey__eyebrow {
  margin-block-end: var(--space-3);
}

.journey__heading {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.75rem, 3.2vw, 2.75rem);
  line-height: 1.18;
  color: var(--color-text);
  max-width: 20ch;
}

.journey__track {
  position: relative;
  margin-block-start: var(--space-3);
}

.journey__rail {
  position: absolute;
  inset-inline: 0;
  inset-block-start: 1.125rem;
  height: 2px;
  background: var(--color-border);
  border-radius: 2px;
  overflow: hidden;
  z-index: 0;
}

.journey__rail-fill {
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  height: 100%;
  width: calc(var(--progress, 0) * 100%);
  background: linear-gradient(90deg, var(--color-gold-dim), var(--color-gold));
}

.journey__steps {
  position: relative;
  z-index: 1;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.journey__step {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-inline-end: var(--space-2);
}

/* Colors/scale here are owned by GSAP (journey.js) once JS is available —
   it tweens them directly as the scroll wave crosses each step, which is
   why there's no CSS transition on background/border/color/transform: a
   parallel CSS transition would race the tween and look janky. The rules
   below exist as the immediate, untransitioned state for the no-JS /
   reduced-motion fallback, and as the values GSAP animates towards. */
.journey__marker {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  transition: filter 0.25s ease;
}

.journey__marker:hover {
  filter: brightness(1.4);
}

.journey__marker:focus-visible {
  outline-offset: 4px;
}

.journey__step.is-active .journey__marker {
  border-color: var(--color-gold);
  background: var(--color-gold);
  color: #17130a;
  box-shadow: 0 0 0 6px color-mix(in srgb, var(--color-gold) 14%, transparent);
}

.journey__step.is-current .journey__marker {
  transform: scale(1.14);
}

.journey__title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.journey__step.is-active .journey__title {
  color: var(--color-text);
}

.journey__desc {
  font-size: var(--type-small);
  line-height: 1.55;
  color: var(--color-text-muted);
  max-width: 26ch;
  opacity: 0.6;
}

.journey__step.is-active .journey__desc {
  opacity: 1;
}

.journey__link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-block-start: 0.15rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-gold);
  border-bottom: 1px solid var(--color-gold-dim);
  padding-block-end: 0.1rem;
  align-self: flex-start;
  transition: color var(--duration-fast) ease, border-color var(--duration-fast) ease, gap var(--duration-fast) ease;
}

.journey__link:hover,
.journey__link:focus-visible {
  color: var(--color-text);
  border-color: var(--color-text);
  gap: 0.55rem;
}

@media (max-width: 780px) {
  .journey__steps {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .journey__rail {
    inset-inline-start: 1.125rem;
    inset-inline-end: auto;
    inset-block: 0;
    inset-block-start: 0;
    width: 2px;
    height: auto;
  }

  .journey__rail-fill {
    width: 100%;
    height: calc(var(--progress, 0) * 100%);
  }

  .journey__step {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--space-3);
    padding-inline-start: calc(2.25rem + var(--space-3));
    position: relative;
  }

  .journey__marker {
    position: absolute;
    inset-inline-start: 0;
    inset-block-start: 0;
    flex-shrink: 0;
  }

  .journey__desc {
    max-width: 36ch;
  }
}