body {
  font-family: "Montserrat", Arial, sans-serif;
  background: #f4f4f7;
  color: #1e293b;
}
/* Navbar — couleurs gérées par Bootstrap + _nav.php */
.navbar {
  background: #fff;
}
.navbar-brand {
  color: #1e293b !important;
  font-weight: 700;
}
.navbar .nav-link {
  color: #374151 !important;
  font-weight: 600;
}
.navbar .nav-link:hover,
.navbar .nav-link.active {
  color: #1f6feb !important;
}
.navbar .btn-primary {
  color: #fff !important;
}
.hero-section {
  background: linear-gradient(90deg, #2563eb 60%, #60a5fa 100%);
  color: #fff;
  padding: 3rem 1rem 2rem 1rem;
  text-align: center;
  border-radius: 0 0 32px 32px;
}
.hero-section h1 {
  font-size: 2.7rem;
  font-weight: bold;
}
.section-title {
  color: #2563eb;
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-weight: 700;
}
.card {
  border-radius: 1.25rem;
}
.btn-primary {
  background: #2563eb;
  border: none;
  font-weight: 600;
}
.btn-primary:hover {
  background: #1d4ed8;
}
footer {
  background: #1e293b;
  color: #f4f4f7;
  padding: 1.5rem 0;
  margin-top: 3rem;
  border-radius: 24px 24px 0 0;
}