/* Base */
 body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background: #f3f6fb;
    color: #333;
    transition: background 0.4s, color 0.4s;
  }

  header {
    background: #007bff;
    color: white;
    padding: 2rem;
    text-align: center;
    position: relative;
    animation: fadeIn 1s ease-out;
  }

  h1 {
    margin: 0;
    font-size: 2.5rem;
  }

  /* Bouton de bascule */
  .toggle-theme-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: white;
    color: #007bff;
    border: none;
    border-radius: 30px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.3s, color 0.3s;
  }

  .toggle-theme-btn:hover {
    background: #e0e0e0;
  }

  /* Catalogue */
  .catalogue {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    padding: 2rem;
  }

  /* Carte Produit */
  .card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.4s, box-shadow 0.4s, background 0.4s, color 0.4s;
    width: 300px;
    animation: slideUp 1s ease-out;
  }

  .card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
  }

  .card h2 {
    font-size: 1.5rem;
    margin: 1rem;
  }

  .card p {
    margin: 0 1rem 1rem;
    font-size: 1rem;
  }

  .card button {
    margin: 1rem;
    padding: 0.7rem 1.2rem;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.3s;
  }

  .card button:hover {
    background: #0056b3;
  }

  /* Animation Hover */
  .card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
  }

  /* Responsive */
  @media (max-width: 768px) {
    .catalogue {
      flex-direction: column;
      align-items: center;
    }
  }

  /* Animations */
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
  }

  @keyframes slideUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
  }

  /* Mode Sombre */
  body.dark-mode {
    background: #121212;
    color: #f3f6fb;
  }

  body.dark-mode header {
    background: #333;
  }

  body.dark-mode .toggle-theme-btn {
    background: #333;
    color: #f3f6fb;
  }

  body.dark-mode .card {
    background: #1e1e1e;
    color: #f3f6fb;
  }

  body.dark-mode .card button {
    background: #f3f6fb;
    color: #1e1e1e;
  }

  body.dark-mode .card button:hover {
    background: #cfcfcf;
  }