document.addEventListener('DOMContentLoaded', function() {
    // Form validation for signal input
    const signalForm = document.querySelector('.signal-form');
    
    if (signalForm) {
        signalForm.addEventListener('submit', function(e) {
            if (this.querySelector('#previous_time')) {
                const previousTimeInput = document.getElementById('previous_time');
                const previousTime = parseFloat(previousTimeInput.value);
                
                if (previousTime < 1.00) {
                    e.preventDefault();
                    alert('Previous winning time must be at least 1.00');
                    return false;
                }
            }
        });
    }
});