function getRandomColor() {
    var letters = '0123456789ABCDEF'.split('');
    var color = '#';
    for (var i = 0; i < 6; i++ ) {
        color += letters[Math.round(Math.random() * 15)];
    }
    return color;
}

function getLightRandomColor() {
    var letters = '0123456789ABCDEF'.split('');
    var color = '#';
    for (var i = 0; i < 6; i++ ) {
        color += letters[Math.round(Math.random() * 5)+10];
    }
    return color;
}

// show postscriptum
setTimeout(() => {
	document.getElementById('postscriptum').style.display = 'block';
}, 10000);

// konami code!
var isPlaying = false;
const easteregg = new Konami(() => {
	$('#postscriptum').text("Nice!");

	$('body').css('font-family','Comic Sans MS, Marker Felt, fantasy');
	if (!isPlaying) {
		var audio = new Audio('./files/hey.mp3');
		audio.play();
		isPlaying = true;
	}
	$('img').css('-webkit-animation', 'spin 2s linear infinite');
	$('img').css('-moz-animation', 'spin 2s linear infinite');
	$('img').css('animation', 'spin 2s linear infinite');

	setInterval(function(){
		$('body').css('background-color',getRandomColor());
		$('body').css('color',getRandomColor());
		$('a').css('color',getRandomColor());
		$('p').css('font-size',(Math.random()*0.5)+16);
	}, 100);

    $('section').prepend( "<article class='center'><h2>KONAMI MODE</h2></article>" );
});