current-time-display').textContent = 
                    currentTime.toLocaleTimeString('en-US', { 
                        hour: '2-digit', 
                        minute: '2-digit', 
                        second: '2-digit',
                        hour12: false 
                    });
                updateTimelineMarker();
            }, 1000);
        }

        function startAutoScroll() {
            if (scrollInterval) {
                clearInterval(scrollInterval);
            }
            
 