/*(C) 2020 Moses Odhiambo*/
@font-face {
	font-family: Extrude;
	src: url(assets/fonts/Extrude.ttf);
}

@font-face {
	font-family: Boxy;
	src: url(assets/fonts/PressStart2P.ttf);
}

* {
	padding: 0;
	margin: 0;
	user-select: none;
}

*:focus {
	outline: none;
}

body {
	margin: 0;
	overflow: hidden;
	touch-action: none;
	/* 禁用所有默认的触摸行为 */
	-webkit-user-select: none;
	/* 禁用文本选择 */
	-webkit-touch-callout: none;
	/* 禁用长按菜单 */
}

canvas {
	height: 100%;
	width: 100%;
	display: block;
	touch-action: none;
	/* 确保canvas上的触摸事件被完全控制 */
}

#score {
	font-family: Boxy;
	font-size: 18px;
	color: white;
	position: absolute;
	top: 20px;
	right: 20px;
}

#splash {
	height: 100vh;
	width: 100vw;
	background-image: url('assets/images/splash-screen.jpg');
	background-size: auto 100%;
	background-position: center center;
	touch-action: auto;
	/* 允许开始界面的触摸交互 */
}

#title {
	position: absolute;
	height: 18vh;
	width: 100vw;
	top: 8vh;
	font-family: Extrude;
	font-size: 40px;
	color: white;
	text-align: center;
	vertical-align: middle;
	line-height: 6vh;
}

#loading {
	opacity: 1;
	position: relative;
	top: 85vh;
	width: 240px;
	height: 5%;
	margin: 0 auto;
	font-family: Boxy;
	font-size: 24px;
	background-color: white;
}

.letter {
	height: 80%;
	float: left;
	color: #11bfe2;
}

.main {
	height: 80%;
	margin: 5px 0px;
}

.period1 {
	animation: first 3s step-end infinite;
}

.period2 {
	animation: second 3s step-end infinite;
}

.period3 {
	animation: third 3s step-end infinite;
}

#instructions {
	position: absolute;
	top: 70vh;
	width: 100%;
	height: 5%;
	margin: 0 auto;
	font-family: 'Roboto';
	font-size: 18px;
	text-align: center;
	color: white;
}

#play {
	opacity: 0;
	position: relative;
	top: 73vh;
	width: 200px;
	height: 43px;
	line-height: 43px;
	margin: 0 auto;
	/* font-family: 'Press Start 2p'; */
	font-size: 24px;
	text-align: center;
	color: #11bfe2;
	background-color: white;
	touch-action: auto;
	/* 恢复按钮区域的触摸功能 */
	z-index: 1000;
	display: flex;
	justify-content: center;
	border-radius: 8px;
}

#pressPlay {
	opacity: 0;
	position: absolute;
	top: 0px;
	left: 0px;
	width: 200px;
	height: 100%;
	touch-action: auto;
	/* 恢复按钮的触摸功能 */
	cursor: pointer;
	z-index: 1001;
}

#restart {
	position: absolute;
	top: 50vh;
	left: 50vw;
	color: white;
	padding: 15px 30px 15px 30px;
	font-family: Boxy;
	font-size: 20px;
	border-style: none;
	transform: translate(-50%, -50%);
	visibility: hidden;
	touch-action: auto;
	/* 恢复按钮的触摸功能 */
	cursor: pointer;
	background-color: #006fff;
	border-radius: 8px;
}

@keyframes first {
	0% {
		opacity: 0;
	}

	25% {
		opacity: 1;
	}

	50% {
		opacity: 1;
	}

	75% {
		opacity: 1;
	}
}

@keyframes second {
	0% {
		opacity: 0;
	}

	25% {
		opacity: 0;
	}

	50% {
		opacity: 1;
	}

	75% {
		opacity: 1;
	}
}

@keyframes third {
	0% {
		opacity: 0;
	}

	25% {
		opacity: 0;
	}

	50% {
		opacity: 0;
	}

	75% {
		opacity: 1;
	}
}