* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: 'Verdana', sans-serif;
      background-color: #000;
      color: #00FF00;
      min-height: 100vh;
    }

    header {
      width: 100%;
      background: #111;
      padding: 1rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid #00FF00;
      position: sticky;
      top: 0;
      z-index: 1000;
    }

    .logo {
      font-size: 1.2rem;
      font-weight: bold;
      color: #00FF00;
    }

    nav {
      display: flex;
      gap: 1rem;
    }

    nav a {
      color: #00FF00;
      text-decoration: none;
      padding: 0.5rem;
      border-radius: 5px;
      transition: 0.3s;
    }

    nav a:hover {
      box-shadow: 0 0 10px #00FF00, 0 0 20px #00FF00;
      background-color: #001100;
    }

    .menu-toggle {
      display: none;
      font-size: 1.5rem;
      color: #00FF00;
      cursor: pointer;
    }

    .container {
      max-width: 800px;
      margin: 2rem auto;
      padding: 1rem;
      text-align: center;
    }

    .header-images {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 20px;
      margin-bottom: 20px;
      flex-wrap: wrap;
    }

    .header-images img {
      max-height: 100px;
    }

    .button-group a {
      display: inline-block;
      margin: 5px 10px;
      padding: 10px 20px;
      border: 1px solid #00FF00;
      border-radius: 5px;
      color: #00FF00;
      background-color: #000;
      text-decoration: none;
      transition: all 0.3s ease;
    }

    .button-group a:hover {
      background: #00FF00;
      color: #000;
      box-shadow: 0 0 10px #00FF00, 0 0 20px #00FF00;
    }

    #counter-container {
      margin-top: 2rem;
      font-size: 1rem;
      padding-top: 10px;
      border-top: 1px solid #333;
    }

    @media (max-width: 768px) {
      nav {
        flex-direction: column;
        display: none;
        background-color: #111;
        width: 100%;
        text-align: center;
        padding: 1rem 0;
      }
      nav.show {
        display: flex;
      }
      .menu-toggle {
        display: block;
      }
    }