#logo {
      text-align: center;
      padding: 3rem 1rem;
      animation: fadeIn 2s ease-in;
    }
    #logo img {
      max-width: 300px;
      border-radius: 20px;
      box-shadow: 0 0 30px rgba(0, 0, 0, 0.7);
      animation: pulse 3s infinite;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }

    body {
      background-color: #ffffff;
      color: #000;
      overflow-x: hidden;
      animation: fadeIn 2s ease-in-out;
    }

    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(20px); }
      to { opacity: 1; transform: translateY(0); }
    }

    header {
      text-align: center;
      padding: 100px 20px 30px;
      animation: slideDown 1s ease-in-out;
    }

    @keyframes slideDown {
      from { opacity: 0; transform: translateY(-50px); }
      to { opacity: 1; transform: translateY(0); }
    }

    h1 {
      font-size: 3rem;
      color: #000;
      letter-spacing: 2px;
      margin-bottom: 20px;
    }


    p {
      font-size: 1.2rem;
      color: #000;
      max-width: 600px;
      margin: 0 auto 40px;
      line-height: 1.6;
    }

    .button-container {
      text-align: center;
    }

    button {
      background: #000;
      color: #ffffff;
      padding: 15px 30px;
      border: none;
      border-radius: 50px;
      font-size: 1rem;
      cursor: pointer;
      transition: background 0.3s ease;
    }

    button:hover {
      background: #0cc;
    }

    .popup {
      display: none;
      position: fixed;
      top: 30%;
      left: 50%;
      transform: translate(-50%, -50%);
      background: #fff;
      color: #000;
      padding: 30px;
      border: 2px solid #0ff;
      border-radius: 10px;
      z-index: 999;
      animation: popupFade 0.5s ease;
    }

    @keyframes popupFade {
      from { opacity: 0; transform: scale(0.8); }
      to { opacity: 1; transform: scale(1); }
    }

    .overlay {
      display: none;
      position: fixed;
      top: 0; left: 0;
      width: 100%; height: 100%;
      background: rgba(0, 0, 0, 0.7);
      z-index: 998;
    }