/* ========================================
    SERVICE INTRO 4 - TIMELINE STYLE
    ======================================== */
.service-intro-4 {
  padding: 100px 5%;
  background: var(--white);
}
.service-intro-4 .container {
  max-width: 900px;
  margin: 0 auto;
}
.service-intro-4 .header {
  text-align: center;
  margin-bottom: 60px;
}
.service-intro-4 .eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 16px;
}
.service-intro-4 h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  color: var(--primary);
  margin-bottom: 16px;
}
.service-intro-4 .header p {
  font-size: 1.05rem;
  color: var(--gray-dark);
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto;
}
.service-intro-4 .timeline {
  position: relative;
  padding-left: 60px;
}
.service-intro-4 .timeline::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gray-light);
}
.service-intro-4 .timeline-item {
  position: relative;
  padding-bottom: 40px;
}
.service-intro-4 .timeline-item:last-child {
  padding-bottom: 0;
}
.service-intro-4 .timeline-dot {
  position: absolute;
  left: -48px;
  top: 0;
  width: 40px;
  height: 40px;
  background: var(--secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--on-secondary);
}
.service-intro-4 .timeline-content {
  background: color-mix(in srgb, var(--gray-light) 40%, var(--white));
  padding: 28px;
}
.service-intro-4 .timeline-content h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--gray-dark);
  margin-bottom: 10px;
}
.service-intro-4 .timeline-content p {
  font-size: 0.95rem;
  color: var(--gray-dark);
  line-height: 1.7;
}
@media (max-width: 640px) {
  .service-intro-4 .timeline {
    padding-left: 50px;
  }
  .service-intro-4 .timeline-dot {
    left: -42px;
    width: 34px;
    height: 34px;
    font-size: 1rem;
  }
}

/* ── TITRES : couleur de survol explicite (CLAUDE.md §4.13) ──────────
   Le main.css des themes stylise les balises Hn, hover compris. Chaque
   titre reprend ici sa couleur de base pour neutraliser cet heritage. */
.service-intro-4 .timeline-content h3:hover {
  color: var(--gray-dark);
}

.service-intro-4 h2:hover {
  color: var(--primary);
}