.popup-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.6);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 9999;
    }

    /* Popup box */
    .popup {
      background: #fff;
      width: 90%;
      max-width: 800px;
      border-radius: 12px;
      overflow: hidden;
      display: flex;
      flex-direction: row;
      flex-wrap: wrap;
    }

    /* Left side image */
    .popup img {
      width: 100%;
      max-width: 400px;
      height: auto;
      object-fit: cover;
      flex: 1;
    }

    /* Right content */
    .popup-content {
      flex: 1;
      padding: 20px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      text-align: left;
    }

    .popup-content h2 {
      margin: 0 0 15px;
      font-size: 24px;
      color: #333;
    }

    .popup-content p {
      font-size: 16px;
      color: #555;
      margin-bottom: 20px;
    }

    .donate-btn {
      display: inline-block;
      padding: 12px 24px;
      background: #f7a100;
      color: #fff;
      text-decoration: none;
      border-radius: 8px;
      font-weight: bold;
      transition: background 0.3s;
      text-align: center;
    }

    .donate-btn:hover {
      background: #e18f00;
    }

    /* Close button at bottom */
    .close-btn {
      background: #ff4d4d;
      color: #fff;
      border: none;
      padding: 10px 18px;
      border-radius: 6px;
      cursor: pointer;
      margin: 15px auto;
      display: block;
      font-size: 16px;
    }

    .close-btn:hover {
      background: #cc0000;
    }

    /* Responsive */
    @media (max-width: 768px) {
      .popup {
        flex-direction: column;
      }
      .popup img {
        max-width: 100%;
      }
    }