// Shared utility functions
function showToast(message, type = 'info') {
    const toast = document.createElement('div');
    toast.className = `fixed bottom-4 right-4 px-4 py-2 rounded-md shadow-lg text-white ${
        type === 'error' ? 'bg-red-500' : 
        type === 'success' ? 'bg-green-500' : 'bg-blue-500'
    }`;
    toast.textContent = message;
    document.body.appendChild(toast);
    
    setTimeout(() => {
        toast.remove();
    }, 3000);
}

// Initialize chess game (will be extended in specific pages)
function initChessGame(mode) {
    console.log(`Initializing chess game in ${mode} mode`);
    // Common initialization logic here
}

// Navigation helper
document.addEventListener('DOMContentLoaded', () => {
    // Any shared initialization logic
});