        .sh-page-blocker {
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            left: 0;
            background: rgba(0, 0, 0, 0.45);
            z-index: 2147483000;
            cursor: progress;
            display: none;
            align-items: center;
            justify-content: center;
        }

        .sh-page-blocker::before {
            content: '';
            border: 4px solid rgba(255, 255, 255, 0.3);
            border-top: 4px solid #ffffff;
            border-radius: 50%;
            width: 50px;
            height: 50px;
            animation: spin 1s linear infinite;
            display: block;
        }

        .sh-page-blocker-text {
            margin-top: 20px;
            color: #ffffff;
            font-size: 18px;
            font-family: Arial, sans-serif;
            text-align: center;
            display: none;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
