/* Styles de base */
html {
    height: 100%;
  }
  
  body {
    display: flex;
    flex-direction: column;
    height: 100%;
    margin: 0;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    color: #333;
    background-color: #fff;
  }
  
  /* En-tête */
  .header {
    background-color: #fff; 
    padding: 20px 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  }
  
  /* Barre de navigation */
  .navbar {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #fff;
    padding: 0 20px;
  }
  
  .navbar a {
    text-decoration: none;
    margin: 0 15px;
    color: #333;
    font-weight: 500;
  }
  
  .navbar a:hover {
    color: #0077b6;
  }
  
  /* Conteneur principal */
  .main-content {
    flex: 1;
    padding: 20px;
  }
  
  /* Section principale */
  .hero {
    background-color: #fafafa;
    padding: 40px 20px;
    text-align: center;
  }
  
  .hero h1 {
    margin: 0;
    color: #333;
    font-size: 2em;
  }
  
  /* Services */
  .services {
    padding: 40px 20px;
    text-align: left;
  }
  
  .services h2 {
    color: #333;
    font-size: 1.5em;
  }
  
  /* Pied de page */
  .footer {
    background-color: #f4f4f4;
    text-align: center;
    padding: 20px;
    font-size: 0.9em;
  }
  
  /* Responsive Design */
  @media (max-width: 768px) {
    .navbar {
      flex-direction: column;
      padding: 20px;
    }
  
    .navbar a {
      margin-bottom: 10px;
    }
  }