/* --- Styles généraux --- */
    body {
      margin: 0;
      font-family: 'Roboto', sans-serif;
      background-color: #0d0d0d;
      color: #f2f2f2;
      line-height: 1.6;
    }

    /* --- Bannière --- */
    header {
      background-image: url(img/banner.jpg);
      background-size: cover;
      background-position: center;
      height: 60vh;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: white;
      position: relative;
    }

    /* Superposition sombre pour lisibilité du texte */
    header::before {
      content: "";
      position: absolute;
      top: 0; left: 0;
      width: 100%; height: 100%;
      background: rgba(0, 0, 0, 0.5);
    }

    /* Texte dans la bannière */
    .banner-content {
      position: relative;
      z-index: 1;
    }

    .banner-content h1 {
      font-family: 'Orbitron', sans-serif;
      font-size: 3rem;
      text-transform: uppercase;
      margin-bottom: 10px;
    }

    .banner-content p {
      font-size: 1.2rem;
      color: #ccc;
    }

    .btn {
      margin-top: 20px;
      background: #ff3b3b;
      border: none;
      color: white;
      padding: 12px 24px;
      border-radius: 8px;
      cursor: pointer;
      font-size: 1rem;
      transition: background 0.3s;
    }

    .btn:hover {
      background: #ff0000;
    }

    /* --- Section principale --- */
    main {
      padding: 50px 10%;
      text-align: center;
    }

    main h2 {
      font-family: 'Orbitron', sans-serif;
      font-size: 2rem;
      margin-bottom: 20px;
    }

    .features {
      display: flex;
      justify-content: space-around;
      gap: 20px;
      margin-top: 40px;
    }

    .attacker{
      background: #ff4d4d;
      padding: 20px;
      border-radius: 15px;
      width: 450px;
      box-shadow: 0 0 20px rgba(255, 255, 255, 0.05);
      transition: transform 0.3s ease;
    }

    .attacker:hover {
      transform: scale(1.05);
    }

    .attacker img {
      width: 100%;
      border-radius: 10px;
      margin-bottom: 15px;
    }

    .defender{
      background: rgb(108, 214, 108);
      padding: 20px;
      border-radius: 15px;
      width: 450px;
      box-shadow: 0 0 20px rgba(255, 255, 255, 0.05);
      transition: transform 0.3s ease;
    }

    .defender:hover {
      transform: scale(1.05);
    }

    .defender img {
      width: 100%;
      border-radius: 10px;
      margin-bottom: 15px;
    }

    .tech{
      background:rgb(77, 144, 231);
      padding: 20px;
      border-radius: 15px;
      width: 450px;
      box-shadow: 0 0 20px rgba(255, 255, 255, 0.05);
      transition: transform 0.3s ease;
    }

    .tech:hover {
      transform: scale(1.05);
    }

    .tech img {
      width: 100%;
      border-radius: 10px;
      margin-bottom: 15px;
    }

    footer {
      background: #111;
      color: #888;
      text-align: center;
      padding: 20px;
      margin-top: 50px;
    }

    /* --- Responsive --- */
    @media (max-width: 768px) {
      header {
        height: 50vh;
      }

      .banner-content h1 {
        font-size: 2rem;
      }

      main {
        padding: 30px;
      }
      .features{
        flex-wrap: wrap;
      }

      .attacker {
        width: 100%;
      }
      .defender{
        width: 100%;
      }
      .tech{
        width: 100%;
      }
    }