
            transition: opacity 0.2s ease;
        }

        .loading-overlay.show {
            display: flex;
            opacity: 1;
        }

        .loading-spinner {
            width: 40px;
            height: 40px;
            border: 3px solid #f3f3f3;
            border-top: 3px solid #007bff;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360de