.rg-apart {
  background: var(--c-bg);
  padding: clamp(72px, 10vw, 110px) 0;
  font-family: var(--font-body);
}

.rg-apart .container {
  display: flex;
  flex-direction: column;
  gap: clamp(36px, 5vw, 52px);
}

/* Top bar: label + step count */
.rg-apart__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.rg-apart__label {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-green);
}

.rg-apart__count {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--c-line);
}

.rg-apart__count span:last-child {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--c-muted);
  align-self: flex-end;
  padding-bottom: 6px;
}

/* Split headline */
.rg-apart__title {
  font-size: clamp(2rem, 4.8vw, 3.4rem);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--c-ink);
  max-width: 18ch;
}

.rg-apart__title .accent {
  display: block;
  margin-top: 4px;
  background: linear-gradient(135deg, var(--c-green-deep) 0%, var(--c-green-link) 45%, var(--c-green) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Timeline track */
.rg-apart__track {
  position: relative;
  padding: 0 8px;
}

.rg-apart__line {
  position: absolute;
  left: 8px;
  right: 8px;
  top: 50%;
  height: 1px;
  background: var(--c-line);
  transform: translateY(-50%);
  z-index: 0;
}

.rg-apart__dots {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.rg-apart__dot {
  justify-self: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid var(--c-line);
  background: var(--c-white);
  color: var(--c-ink);
  font-size: 18px;
  font-weight: 700;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), color 0.35s var(--ease), transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.rg-apart__dot:hover {
  border-color: var(--c-green-link);
  transform: scale(1.06);
}

.rg-apart__dot.is-active {
  background: var(--c-green-deep);
  border-color: var(--c-green-deep);
  color: #fff;
  box-shadow: 0 10px 28px rgba(61, 21, 120, 0.35);
}

/* Four columns */
.rg-apart__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(20px, 3vw, 32px);
}

.rg-apart__step {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 8px 4px;
  cursor: pointer;
  transition: opacity 0.35s var(--ease);
}

.rg-apart__step:not(.is-active) {
  opacity: 0.55;
}

.rg-apart__step:hover,
.rg-apart__step.is-active {
  opacity: 1;
}

.rg-apart__step h3 {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-ink);
  line-height: 1.3;
}

.rg-apart__step h3 em {
  font-style: normal;
  color: var(--c-green-link);
}

.rg-apart__step p {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--c-secondary);
}

/* Tablet: 2x2 grid */
@media (max-width: 1024px) {
  .rg-apart__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px 24px;
  }
  .rg-apart__dots {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Mobile: stack */
@media (max-width: 640px) {
  .rg-apart__top {
    flex-direction: column;
    align-items: flex-start;
  }
  .rg-apart__title {
    max-width: none;
  }
  .rg-apart__track {
    display: none;
  }
  .rg-apart__grid {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .rg-apart__step {
    opacity: 1;
    padding: 24px 0;
    border-top: 1px solid var(--c-line);
  }
  .rg-apart__step:last-child {
    border-bottom: 1px solid var(--c-line);
  }
  .rg-apart__step:not(.is-active) {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .rg-apart__dot,
  .rg-apart__step {
    transition: none;
  }
}