:root {
	--color-gray-light-1: #f8f8f8;
	--color-gray-light-2: #e9e9e9;
	--color-gray-light-3: #dedede;
	--color-gray-dark-1: #545454;
	--color-gray-dark-2: #737373;
	--color-gray-dark-3: #9a9a9a;
	--color-blue-dark-1: #0080ff;
	--color-tiffany: #0057ad;
	--profile-theme: #002f5e;
	--timeline-circle-theme: #14253e;

	--pgbar-length: 100%;

	--MATH-PI: 3.1415px;
	--percent: 100;
}

html {
	font-size: 100%;
	font-family: 'PT Sans', sans-serif;
	background-image: url('/src/bg.jpg');
	background-position: center center;
	background-repeat: no-repeat;
	background-size: cover;
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	padding: 3rem 1rem;
	min-height: 100vh;
}

.wrapper {
	margin: 0 auto;
	max-width: 70rem;
	background-color: var(--color-gray-light-2);
	display: flex;
	box-shadow: 0px 0px 15px 4px #b3b3b3;
}

.intro {
	flex: 0 0 250px;
	background-color: var(--color-gray-light-1);
	box-shadow: 5px 0px 15px 0px #b3b3b3;
	z-index: 5;
}

.profile {
	position: relative;
	background-color: var(--profile-theme);
	padding: 2rem 1rem;
	margin-bottom: 50px;
	text-align: center;
	user-select: none;
}

.profile::after {
	content: " ";
	position: absolute;
	left: 0;
	bottom: -15px;
	width: 100%;
	height: 30px;
	background-color: var(--profile-theme);
	transform: skewY(-5deg);
}

.photo img {
	width: 80%;
	border-radius: 50%;
}

.bio .name {
	font-size: 1.5rem;
	text-align: center;
	color: var(--color-gray-light-1);
	margin: 0;
	margin-top: 1rem;
}

.bio .profession {
	font-size: 1rem;
	text-align: center;
	color: var(--color-gray-light-1);
	margin: 0;
}

.intro-section {
	padding: 0 1rem;
	color: var(--color-gray-dark-1);
}

.intro-section .title {
	font-size: 1rem;
	font-weight: bold;
	text-transform: uppercase;
	letter-spacing: 1px;
}

.about .paragraph {
	text-align: justify;
}

.info-section {
	margin: 1rem 0;
}

.info-section span {
	position: relative;
	transition: all 0.3s;
}

.info-section i {
	color: var(--profile-theme);
	width: 20px;
	height: 20px;
}

.iconii {
	width: 15px;
	height: auto;
	margin: -2px 5px;
}

.lang {
	list-style: none;
	display: inline;
}

.link a {
	text-decoration: none;
	color: inherit;
}

.link span::after {
	position: absolute;
	content: '';
	left: 50%;
	bottom: -3px;
	width: 0;
	height: 2px;
	background-color: var(--profile-theme);
	transition: width 0.3s;
	/*transition-timing-function: cubic-bezier(.64,.51,.16,.86);*/
	transition-timing-function: cubic-bezier(.92, .57, .33, 1.02);
	transform: translate(-50%, 0);
}

.link span:hover {
	color: var(--profile-theme);
}

.link span:hover::after {
	width: 100%;
}

/* Detail section overall setting*/
.detail {
	flex: 1 0 0;
	background-color: white;
	padding: 2rem;
}

.detail:hover>.detail-section:not(:hover) {
	opacity: 0.3;
}

.detail-section {
	transition: all 0.3s;
}

.detail-section:not(:last-of-type) {
	padding-bottom: 1rem;
}

.detail-title {
	display: flex;
	align-items: center;
}

.detail-section>.detail-content {
	padding: 1.5rem;
	padding-left: 2rem;
	user-select: none;
}

.detail-section.edu>.detail-content {
	padding-left: calc(1.5rem + 10px);
}

.title-icon+span {
	font-size: 1.5rem;
	transition: all 0.3s;
}

.title-icon {
	display: inline-flex;
	justify-content: center;
	align-items: center;
	padding: 1rem;
	margin-right: 1rem;
	width: 2.5rem;
	height: 2.5rem;
	background-color: var(--profile-theme);
	border-radius: 50%;
	transition: all 0.3s;
}

.title-icon i {
	color: white;
	line-height: 1rem;
	font-size: 1rem;
	text-align: center;
}

.detail-section:hover .title-icon {
	transform: scale(1.5);
	margin-right: 1.5rem;
}

.detail-section:hover .title-icon+span {
	letter-spacing: 1.5px;
}

/* time line block in education section */
.timeline-block {
	position: relative;
	padding-left: 30px;
}

.timeline-block:not(:last-of-type) {
	margin-bottom: 1rem;
}

.timeline-block h1 {
	font-size: 1rem;
	margin: 5px 0;
	transition: all 0.3s;
}

.timeline-block p {
	font-size: 0.8rem;
	margin: 5px 0;
}

.timeline-block time {
	font-size: 0.8rem;
	color: var(--color-gray-dark-2);
}

.timeline-block::before {
	position: absolute;
	content: '';
	width: 15px;
	height: 15px;
	background-color: white;
	border: 3px solid var(--timeline-circle-theme);
	border-radius: 50%;
	left: -10px;
	top: -5px;
}

.timeline-block::after {
	position: absolute;
	content: '';
	width: 3px;
	height: 100%;
	background-color: var(--timeline-circle-theme);
	left: -1px;
	top: 13px;
}

.timeline-block:hover h1 {
	color: var(--color-tiffany);
}

.timeline-block:hover::before {
	animation: circle 1.2s infinite;
}

/* Programming skills section */
.pg-list, .tool-list, .favor-list {
	padding: 0;
	list-style: none;
}

.pg-list>li {
	margin: 1rem 0;
	display: flex;
	align-items: center;
}

.sb-skeleton {
	position: relative;
	flex: 1 0 auto;
	height: 2px;
	background-color: var(--color-gray-dark-3);
}

.pg-list>li>span {
	flex: 0 0 100px;
}

.sb-skeleton>.skillbar {
	position: absolute;
	left: 0;
	top: -1px;
	width: var(--pgbar-length);
	height: 4px;
	background-color: var(--profile-theme);
}

.tool-list {
	list-style: none;
	display: flex;
	justify-content: space-between;
}

.tool-list>li {
	position: relative;
	text-align: center;
	flex: 0 0 25%;
}

.tool-list>li>svg {
	position: relative;
	fill: transparent;
	width: 95%;
	transform: rotate(-90deg);
}

.tool-list>li>svg>circle {
	stroke-width: 1px;
	stroke: #cdcdcd;
}

.tool-list>li>svg>circle.cbar {
	stroke-width: 3px;
	stroke: var(--profile-theme);
	stroke-linecap: round;
	stroke-dashoffset: 0;
	stroke-dasharray: calc(var(--MATH-PI) * 45 * 2);
	transition: all 0.8s;
	transition-timing-function: cubic-bezier(.64, .51, .16, .86);
}

.tool-list>li:hover>svg>circle.cbar {
	stroke-width: 4px;
	stroke: var(--color-tiffany);
	stroke-dashoffset: calc(var(--MATH-PI) * 45 * 2 * (1 - var(--percent)));
}

.tool-list>li>.tl-name,
.tool-list>li>.tl-exp {
	position: absolute;
	left: 50%;
	color: var(--color-gray-dark-1);
}

.tool-list>li>.tl-name {
	top: 50%;
	font-size: 1.2rem;
	transform: translate(-50%, -50%);
}

.tool-list>li>.tl-exp {
	top: calc(50% + 1.4rem);
	font-size: 1rem;
	transform: translate(-50%, -50%);
}

#alignh{
	display: flex;
}

.hides{
	font-size: 0.01px;
}

.showc{
	padding: 0px 10px;
}

.showc:hover{
	box-shadow: var(--color-gray-dark-1) 0px 0px 5px inset;
	transition: 0.3s;
}

.showc:hover+.hides {
	background-color: var(--color-tiffany);
	color:var(--color-gray-light-1);
	font-weight: bold; 
	border-radius: 5px;
	padding: 0px 32px;
	font-size: 16px;
	margin: 4px 2px;
	transition: 0.3s;
}

.showc:active+.hides {
	background-color: var(--color-tiffany);
	color: var(--color-gray-light-1);
	font-weight: bold; 
	border-radius: 5px;
	padding: 0px 32px;
	font-size: 16px;
	margin: 4px 2px;
	transition: 0.3s;
}

footer{
	background-color: var(--profile-theme);
	color: var(--color-gray-light-1);
	padding: 8px;
	text-align: center;
	max-width: 70rem;
	display: block;
	margin: auto;
}

@keyframes circle {
	0% {
		box-shadow: 0 0 0 0px rgba(51, 52, 57, 1);
	}

	100% {
		box-shadow: 0 0 0 6px rgba(51, 52, 57, 0);
	}
}

@media (max-width: 1024px) {
	html {
		font-size: 90%;
	}

	.wrapper {
		flex-direction: column;
	}

	.intro, .detail {
		flex: 0 0 100%;
		box-shadow: none;
	}

	.intro-section {
		padding: 0 2rem;
	}

	.profile {
		margin-bottom: 1rem;
	}

	.profile::after {
		display: none;
	}

	.photo img {
		width: 100px;
	}

	.iconii {
		width: 10px;
		height: auto;
		margin: 0px 5px;
	}
	.hides{
		font-size: 0.1px;
	}
	.hides:hover{
		font-size: 8px;
	}
}

@media (max-width: 768px) {
	html {
		font-size: 80%;
	}

	.tool-list {
		flex-wrap: wrap;
	}

	.tool-list>li {
		flex: 0 0 33.33%;
	}

	.favor-list>li {
		flex: 0 0 33.3333%;
	}
	.hides{
		font-size: 0.1px;
	}
	.hides:hover{
		font-size: 8px;
	}
}

@media (max-width: 500px) {
	html {
		font-size: 60%;
	}
	.hides{
		font-size: 0.1px;
	}
	.hides:hover{
		font-size: 5px;
	}
}