.process {
  background: linear-gradient(180deg, var(--c-bg-1), var(--c-bg-0));
  position: relative;
}

.process__header {
  max-width: var(--content-max);
  margin: 0 auto 5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.process__heading {
  font-family: var(--ff-display);
  font-size: var(--fs-h2);
  line-height: var(--lh-snug);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--c-text);
  text-wrap: balance;
}
.process__sub {
  color: var(--c-text-2);
  font-size: 1.05rem;
  max-width: 50ch;
}

.process__timeline {
  max-width: 880px;
  margin: 0 auto;
  position: relative;
  padding-left: 3.5rem;
}

.process__line {
  position: absolute;
  left: 1.5rem;
  top: 1rem;
  bottom: 1rem;
  width: 1px;
  background: var(--c-line);
}
.process__line-fill {
  position: absolute;
  inset: 0 0 auto 0;
  width: 100%;
  height: 0%;
  background: var(--grad-primary);
  transform-origin: top;
}

.process-step {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  position: relative;
  padding: 2rem 0;
}
.process-step__num {
  position: absolute;
  left: -3.5rem;
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--c-line);
  background: var(--c-bg-0);
  font-family: var(--ff-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-text-2);
  z-index: 2;
  transition: background var(--dur-base) var(--ease-out-expo),
              color var(--dur-base) var(--ease-out-expo),
              border-color var(--dur-base) var(--ease-out-expo),
              transform var(--dur-base) var(--ease-out-expo);
}
.process-step.is-active .process-step__num {
  background: var(--grad-primary);
  color: #fff;
  border-color: transparent;
  transform: scale(1.05);
  box-shadow: 0 0 24px rgba(124,58,237,0.45);
}

.process-step__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.process-step__label {
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--c-text-3);
  text-transform: uppercase;
}
.process-step__title {
  font-family: var(--ff-display);
  font-size: clamp(1.3rem, 2vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--c-text);
}
.process-step__desc {
  color: var(--c-text-2);
  font-size: 1rem;
  line-height: 1.65;
  max-width: 56ch;
}

@media (max-width: 640px) {
  .process__timeline { padding-left: 2.75rem; }
  .process__line { left: 1.1rem; }
  .process-step__num { left: -2.75rem; width: 2.4rem; height: 2.4rem; font-size: 0.85rem; }
}