/* Grands écrans (1200px et plus) */
@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

/* Tablettes et petits écrans (992px et moins) */
@media (max-width: 992px) {
  .container {
    max-width: 960px;
  }
  
  .features-grid,
  .courses-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Tablettes (768px et moins) */
@media (max-width: 768px) {
  .container {
    max-width: 720px;
  }

  /* Header Mobile */
  .header {
    background-color: var(--white);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  }

  .navbar {
    padding: 1rem;
  }

  .menu-toggle {
    display: block;
    background: none;
    border: none;
    padding: 0.5rem;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    padding: 1rem;
    box-shadow: 0 2px 4px rgba(255, 255, 255, 0.1);
  }

  .nav-menu.active {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-menu a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-color);
  }

  /* Search et Social en mobile */
  .search-container,
  .social-links {
    width: 100%;
    margin-top: 1rem;
  }

  .search-dropdown {
    position: static;
    width: 100%;
    box-shadow: none;
  }

  .search-form {
    display: flex;
    gap: 0.5rem;
  }

  .search-form input {
    flex: 1;
  }

  /* Sections Responsive */
  .hero {
    height: 60vh;
    padding-top: 4rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1rem;
  }

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

/* Mobile (576px et moins) */
@media (max-width: 576px) {
  .container {
    max-width: 100%;
    padding: 0 1rem;
  }

  .features-grid,
  .courses-grid {
    grid-template-columns: 1fr;
  }

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

  .section-title {
    font-size: 2rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .social-links {
    justify-content: center;
  }
}

/* Orientation Paysage Mobile */
@media (max-height: 480px) and (orientation: landscape) {
  .hero {
    height: auto;
    min-height: 100vh;
  }

  .hero-content {
    padding: 6rem 0;
  }
}

/* Optimisations pour les écrans haute densité */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .hero {
    background-image: url('https://images.unsplash.com/photo-1523240795612-9a054b0db644?ixlib=rb-1.2.1&auto=format&fit=crop&w=2070&q=80');
  }
}