/* Tablette et mobile */
@media (max-width: 900px) {
  .sidebar {
    display: none;
  }

  .burger {
    display: block;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bleu-marine);
    padding: 1rem;
  }

  .nav-links.active {
    display: flex;
  }

  .main-layout {
    flex-direction: column;
  }

  .content {
    padding: 1rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
}

/* Petits mobiles */
@media (max-width: 480px) {
  nav {
    padding: 1rem;
  }

  .hero {
    padding: 2rem 1rem;
  }

  .stat-number {
    font-size: 2rem;
  }
}