/* Scroll snap ruler */
.ruler-stage {
  min-height: 100vh;
}

.ruler-intro {
  display: grid;
  min-height: 58vh;
  align-content: end;
  padding: clamp(48px, 9vw, 112px) max(16px, calc((100vw - 1180px) / 2)) 42px;
}

.ruler-scroll {
  position: relative;
  min-height: 360vh;
  border-top: 1px solid var(--line);
}

.ruler-sticky {
  position: sticky;
  top: 0;
  display: grid;
  min-height: 100vh;
  grid-template-columns: minmax(80px, 0.18fr) minmax(0, 1fr);
  gap: clamp(18px, 5vw, 68px);
  align-items: center;
  padding: 32px max(16px, calc((100vw - 1180px) / 2));
  overflow: hidden;
}

.ruler-track {
  position: relative;
  width: 8px;
  height: min(70vh, 560px);
  border-radius: 999px;
  background: rgba(17, 19, 21, 0.12);
}

.ruler-fill {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: var(--ink);
  transform: scaleY(0);
  transform-origin: top center;
}

.ruler-dot {
  position: absolute;
  left: 50%;
  width: 22px;
  aspect-ratio: 1;
  border: 3px solid var(--paper);
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 12px 24px rgba(17, 19, 21, 0.18);
  transform: translate(-50%, -50%);
}

.ruler-card-stack {
  position: relative;
  min-height: min(70vh, 600px);
  perspective: 1000px;
}

.ruler-card {
  position: absolute;
  inset: 50% auto auto 0;
  display: grid;
  width: min(760px, 100%);
  min-height: clamp(260px, 44vw, 430px);
  align-content: end;
  border: 1px solid rgba(17, 19, 21, 0.14);
  border-radius: 8px;
  background:
    linear-gradient(135deg, var(--tone), transparent 72%),
    rgba(255, 255, 255, 0.64);
  box-shadow: 0 28px 76px rgba(17, 19, 21, 0.16);
  padding: clamp(22px, 4vw, 44px);
  transform: translateY(-50%);
  will-change: transform, opacity;
}

.ruler-card h2 {
  max-width: 9ch;
  margin-bottom: 16px;
}

.ruler-card p {
  max-width: 520px;
}

@media (max-width: 760px) {
  .ruler-sticky {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 16px;
  }

  .ruler-card {
    min-height: 360px;
  }
}