:root {
    --bg-color-light: #f0f0f0;
    --text-color-light: #333;
    --bg-color-dark: #121212;
    --text-color-dark: #e0e0e0;
    --primary-color: #007bff;
    --button-bg-light: #007bff;
    --button-bg-dark: #333;
  }
  
  body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s, color 0.3s;
  }
  
  body.light-mode {
    background-color: var(--bg-color-light);
    color: var(--text-color-light);
  }
  
  body.dark-mode {
    background-color: var(--bg-color-dark);
    color: var(--text-color-dark);
  }
  
  header {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 1em;
  }
  
  header h1 {
    margin: 0;
  }
  
  #toggle-theme {
    margin-top: 10px;
    padding: 5px 15px;
    cursor: pointer;
    background-color: var(--button-bg-light);
    color: white;
    border: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background-color 0.3s;
  }
  
  body.dark-mode #toggle-theme {
    background-color: var(--button-bg-dark);
  }
  
  #theme-icon {
    margin-right: 8px;
  }
  
  .content {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    text-align: center;
  }
  
  img {
    max-width: 100%;
    height: auto;
    margin-top: 15px;
  }
  
  .download-section {
    margin-top: 20px;
  }
  
  .download-button {
    display: inline-block;
    margin-top: 10px;
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s;
  }
  
  .download-button:hover {
    background-color: #0056b3;
  }
  
  footer {
    text-align: center;
    padding: 1em;
    background-color: var(--primary-color);
    color: white;
  }
  
  .social-icons {
    display: flex;
    justify-content: center;
    gap: 15px;
  }
  
  .icon {
    font-size: 24px;
    color: white;
    text-decoration: none;
    transition: transform 0.3s;
  }
  
  .icon:hover {
    transform: scale(1.2);
  }
  
  .facebook {
    color: #4267B2;
  }
  
  .instagram {
    color: #C13584;
  }
  
  .website {
    color: #00A0D1;
  }
  .social-icons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
  }
  
  .icon {
    font-size: 24px;
    color: #333;
    text-decoration: none;
    transition: color 0.3s, transform 0.3s;
  }
  
  .icon:hover {
    transform: scale(1.2);
  }
  
  .facebook {
    color: #black; /* Couleur Facebook */
  }
  
  .instagram {
    color: #black; /* Couleur Instagram */
  }
  
  .website {
    color: #black; /* Couleur site web */
  }