/* ============================================================================
   process.css — chapter 09, HOW WE WORK

   Phase 2 ships this as a native scroll-snap rail: it works with no JS, on
   touch, and with reduced motion. Phase 3 pins the section and drives the same
   track with xPercent on desktop only.
   ========================================================================== */

.process__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--chapter-gap);
  flex-wrap: wrap;
  margin-bottom: var(--chapter-gap);
}

.process__hint {
  display: none;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--page-muted);
}

@media (min-width: 900px) {
  .process__hint { display: flex; }
}

.process__viewport {
  /* Full-bleed so the rail runs to the edge of the screen. */
  width: 100vw;
  margin-left: 50%;
  transform: translateX(-50%);
  padding-inline: var(--gutter-sm);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}

.process__viewport::-webkit-scrollbar { display: none; }

@media (min-width: 768px) {
  .process__viewport { padding-inline: 48px; }
}

@media (min-width: 1200px) {
  .process__viewport { padding-inline: var(--gutter); }
}

.process__track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(268px, 1fr);
  gap: var(--space-5);
  width: max-content;
  padding-bottom: var(--space-6);
}

@media (min-width: 1200px) {
  .process__track { grid-auto-columns: 360px; }
}

.step {
  scroll-snap-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  border: 1px solid var(--page-border);
  background: var(--page-surface);
  min-height: 300px;
}

.step__num {
  font-family: var(--font-mono);
  font-size: var(--fs-h2);
  font-weight: var(--weight-semibold);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--yellow-500);
}

.step__title {
  font-family: var(--font-sans);
  font-size: var(--fs-h4);
  font-weight: var(--weight-bold);
  line-height: var(--leading-snug);
  color: var(--page-fg);
}

.step__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--page-body);
}

/* A thin rule links the cards into one timeline. */
.step::after {
  content: "";
  margin-top: auto;
  height: 1px;
  background: linear-gradient(to right, var(--yellow-500) 0 34%, var(--page-border) 34%);
}