/* ============================================
   BLOCK 4 — INSTALL (numbered timeline vertical)
   ============================================ */

.home_block_4 {
  background: var(--bg-dark);
  padding-top: 9rem;
  padding-bottom: 9rem;
}

.home_block_4_inner {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.home_block_4_head {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  max-width: 880px;
}

.home_block_4_title {
  margin-top: 0.4rem;
}

.home_block_4_lead {
  color: var(--text-muted);
}

.home_block_4_intro {
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.95rem;
  margin-top: 0.4rem;
}

.home_block_4_timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  max-width: 1100px;
}

.home_block_4_timeline::before {
  content: "";
  position: absolute;
  left: 3rem;
  top: 1.6rem;
  bottom: 1.6rem;
  width: 2px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-2) 100%);
  opacity: 0.35;
}

.home_block_4_step {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 2rem;
  align-items: center;
  padding: 1.4rem 0;
  position: relative;
}

.home_block_4_num {
  width: 6rem;
  height: 6rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: "Bebas Neue", sans-serif;
  font-size: 2rem;
  font-weight: 400;
  color: var(--text);
  background: #ffffff;
  border: 2px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.10);
  position: relative;
  z-index: 1;
  letter-spacing: 0.04em;
}

.home_block_4_step:nth-child(odd) .home_block_4_num {
  border-color: var(--accent);
  color: var(--accent);
}

.home_block_4_step:nth-child(even) .home_block_4_num {
  border-color: var(--accent-2);
  color: var(--accent-2-dark);
  box-shadow: 0 0 0 4px rgba(234, 179, 8, 0.10);
}

.home_block_4_text {
  font-size: 1.22rem;
  color: var(--text);
  line-height: 1.5;
}

.home_block_4_outro {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  max-width: 1100px;
  padding-top: 2rem;
  border-top: 1px solid var(--bg-line);
}

.home_block_4_outro > p {
  color: var(--text-muted);
}

.home_block_4_note {
  padding: 1.4rem 1.8rem;
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
}

.home_block_4_cta {
  align-self: flex-start;
  margin-top: 1rem;
}

@media (max-width: 1024px) {
  .home_block_4_timeline::before {
    left: 4rem;
  }

  .home_block_4_step {
    grid-template-columns: 8rem 1fr;
    gap: 2.5rem;
  }

  .home_block_4_num {
    width: 8rem;
    height: 8rem;
    font-size: 3.4rem;
  }

  .home_block_4_text {
    font-size: 2.4rem;
  }

  .home_block_4_cta {
    align-self: stretch;
  }
}