.modal {
      display: none;
      position: fixed;
      z-index: 10;
      left: 0;
      top: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(0,0,0,0.6);
      justify-content: center;
      align-items: center;
    }

    .modal-content {
      background-color: #fff;
      padding: 30px;
      border-radius: 10px;
      text-align: center;
      width: 90%;
      max-width: 400px;
      position: relative;
      animation: fadeIn 0.3s;
    }

    @keyframes fadeIn {
      from {opacity: 0; transform: scale(0.95);}
      to {opacity: 1; transform: scale(1);}
    }

    .close {
      position: absolute;
      right: 15px;
      top: 10px;
      font-size: 24px;
      font-weight: bold;
      color: #888;
      cursor: pointer;
    }

    .register-btn {
      background-color: #ff4081;
      color: white;
      border: none;
      padding: 12px 20px;
      font-size: 16px;
      border-radius: 6px;
      cursor: pointer;
      margin-top: 20px;
    }

    .register-btn:hover {
      background-color: #e73370;
    }