body {
    margin: 0;
    padding: 0;
    font-family: monospace;
    background-color: black; /* Assure un fond totalement noir */
    color: white;
    overflow: hidden;
  }
  
  #particles {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-color: black; /* Assure un fond noir total */
  }
  
  .navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    width: 100%;
    box-sizing: border-box;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    background-color: black; /* Ajout d'un fond noir pour la navbar */
  }
  
  .navbar-logo {
    font-size: 1.5em;
    font-weight: bold;
    text-decoration: none;
    color: white;
    display: flex;
    align-items: center;
  }
  
  .navbar-logo .highlight {
    color: #ff6600;
  }
  
  .navbar-logo .arrow {
    color: #ff6600;
    margin-left: 5px;
  }
  
  .navbar-menu {
    display: flex;
    list-style: none;
  }
  
  .navbar-menu li {
    margin-left: 20px;
  }
  
  .navbar-menu a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
  }
  
  .navbar-menu a:hover {
    color: #ff6600;
  }
  
  .container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
  }
  
  .logo {
    font-size: 4em;
    margin-bottom: 20px;
    letter-spacing: 2px;
  }
  
  .logo .highlight {
    color: #ff6600;
  }
  
  .tagline {
    font-size: 1.2em;
    margin-bottom: 40px;
    opacity: 0.8;
  }
  
  .btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: #ff6600;
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: bold;
    letter-spacing: 1px;
    transition: all 0.3s ease;
  }
  
  .btn:hover {
    background-color: #ff8800;
    transform: scale(1.05);
  }