/* ============================================
   BLOCK 4 — Instalación APK Android
   Grid: visual (sticky-feel) + 6-step vertical timeline
   ============================================ */

.home_block_4 {
  background: var(--bg-dark);
}

.home_block_4_inner {
  display: flex;
  flex-direction: column;
  gap: 5rem;
}

/* ===== Header ===== */
.home_block_4_header {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  max-width: 78rem;
}

.home_block_4_title > .text-accent {
  display: inline-block;
}

.home_block_4_lead {
  color: var(--text-muted);
  line-height: 1.65;
}

/* ===== Grid: visual + timeline ===== */
.home_block_4_grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 5rem;
  align-items: start;
}

/* ===== Visual ===== */
.home_block_4_visual {
  position: sticky;
  top: 8rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--accent-line-mid);
  box-shadow:
    var(--shadow-card),
    0 0 50px var(--accent-glow);
  aspect-ratio: 16 / 11;
}

.home_block_4_visual_img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.04);
  transition: transform 0.8s ease;
}

.home_block_4_visual:hover > .home_block_4_visual_img {
  transform: scale(1.08);
}

.home_block_4_visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    transparent 40%,
    rgba(4, 16, 30, 0.7) 100%
  );
  pointer-events: none;
}

.home_block_4_visual_chip {
  position: absolute;
  bottom: 1.6rem;
  left: 1.6rem;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.9rem 1.3rem;
  background: var(--surface-bg-strong);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 2;
  box-shadow: 0 0 20px var(--accent-glow);
}

.home_block_4_visual_chip_value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.02em;
}

.home_block_4_visual_chip_label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ===== Timeline (ol) ===== */
.home_block_4_steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding: 0;
}

.home_block_4_step {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.8rem;
  padding-bottom: 2.4rem;
}

/* ===== Connecting line between numbers ===== */
.home_block_4_step::before {
  content: "";
  position: absolute;
  left: 1.95rem;
  top: 4rem;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    180deg,
    var(--accent) 0%,
    var(--accent-line) 100%
  );
  opacity: 0.5;
}

.home_block_4_step:last-child::before {
  display: none;
}

.home_block_4_step:last-child {
  padding-bottom: 0;
}

/* ===== Step number circle ===== */
.home_block_4_step_num {
  position: relative;
  z-index: 2;
  width: 4rem;
  height: 4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--accent);
  background: var(--bg-elevated);
  border: 2px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 16px var(--accent-glow);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
  flex-shrink: 0;
}

.home_block_4_step:hover .home_block_4_step_num {
  transform: scale(1.08);
  box-shadow: 0 0 24px var(--accent-glow-strong);
}

/* ===== Step body ===== */
.home_block_4_step_body {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 0.4rem;
}

.home_block_4_step_title {
  color: var(--text);
}

.home_block_4_step_text {
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== Warning card ===== */
.home_block_4_warning {
  display: flex;
  align-items: flex-start;
  gap: 1.6rem;
  padding: 2rem 2.4rem;
  background: var(--bg-surface);
  border-left: 3px solid var(--accent-2);
  border-radius: var(--radius-sm);
  box-shadow: 0 0 30px rgba(255, 122, 69, 0.08);
}

.home_block_4_warning_badge {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.9rem;
  background: var(--accent-2-soft);
  border: 1px solid var(--accent-2);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-2);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-shadow: 0 0 10px rgba(255, 122, 69, 0.3);
}

.home_block_4_warning_text {
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}

/* ============================================
   Mobile — ≤1024px
   ============================================ */
@media (max-width: 1024px) {
  .home_block_4_inner {
    gap: 6rem;
  }

  .home_block_4_header {
    max-width: 100%;
    gap: 2.4rem;
  }

  .home_block_4_grid {
    grid-template-columns: 1fr;
    gap: 5rem;
  }

  .home_block_4_visual {
    position: static;
    border-radius: var(--radius);
  }

  .home_block_4_visual_chip {
    padding: 1.6rem 2rem;
    bottom: 1.4rem;
    left: 1.4rem;
    gap: 0.8rem;
  }

  .home_block_4_visual_chip_value {
    font-size: 4rem;
  }

  .home_block_4_visual_chip_label {
    font-size: 1.8rem;
  }

  .home_block_4_step {
    gap: 2.4rem;
    padding-bottom: 3.4rem;
  }

  .home_block_4_step::before {
    left: 3.45rem;
    top: 7rem;
    width: 3px;
  }

  .home_block_4_step_num {
    width: 7rem;
    height: 7rem;
    font-size: 3rem;
    border-width: 3px;
  }

  .home_block_4_step_body {
    gap: 1rem;
    padding-top: 1rem;
  }

  .home_block_4_warning {
    flex-direction: column;
    gap: 1.6rem;
    padding: 3rem 2.6rem;
  }

  .home_block_4_warning_badge {
    font-size: 1.8rem;
    padding: 0.6rem 1.2rem;
  }
}