.about-hero {
  background: linear-gradient(135deg, rgba(0, 85, 164, 0.9) 0%, rgba(0, 46, 93, 0.9) 100%),
              url("../images/news-hero.jpg");
  background-size: cover;
  background-position: center;
  color: white;
  padding: 5rem 0;
}
.timeline {
  position: relative;
  padding-left: 30px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--unilu-gold);
}
.timeline-item {
  position: relative;
  margin-bottom: 30px;
  padding-bottom: 20px;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -23px;
  top: 5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--unilu-blue);
  border: 2px solid var(--unilu-gold);
}
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}
.value-card {
  background: white;
  padding: 30px;
  border-radius: 15px;
  text-align: center;
  border-left: 4px solid var(--unilu-gold);
  transition: var(--transition-fast);
  box-shadow: var(--shadow-sm);
}
.value-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}
.organigramme {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-radius: 15px;
  padding: 30px;
}
.diploma-card {
  border-left: 4px solid var(--unilu-blue);
  transition: var(--transition-fast);
}
.diploma-card:hover {
  border-left-color: var(--unilu-gold);
  transform: translateX(5px);
}
.nav-pills .nav-link {
  color: var(--unilu-blue);
  font-weight: 500;
  padding: 12px 20px;
  margin-bottom: 10px;
  border-radius: 8px;
  transition: var(--transition-fast);
}
.nav-pills .nav-link.active {
  background: var(--unilu-blue);
  color: white;
}
.nav-pills .nav-link:hover:not(.active) {
  background: rgba(0, 85, 164, 0.1);
}

/* ── About page sidebar ─────────────────────────────────────── */
.about-sidenav-link {
  color: #333;
  font-size: .9rem;
  padding: .6rem 1.4rem;
  border-radius: 0;
  border-left: 3px solid transparent;
  transition: background .15s, border-color .15s, color .15s;
}
.about-sidenav-link:hover {
  background: rgba(0,35,102,.07);
  color: var(--unilu-blue);
  border-left-color: var(--unilu-gold);
}
.about-sidenav-link.active {
  background: rgba(0,35,102,.1);
  color: var(--unilu-blue);
  font-weight: 600;
  border-left-color: var(--unilu-gold);
}