@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");
@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard-jp.min.css");

:root {
	--base-padding: 10rem;
	--base-background-color: #f9f9f9;
	--base-text-color: #333;

	--navigation-background-color: #fff;
	--navigation-text-color: #000;

	--highlight-color: #35c5f0;
	--box-shadow-color: rgba(0, 0, 0, 0.1);

	--dropdown-toggle-background-color: #fff;
	--dropdown-toggle-border-color: #eaedef;
	--dropdown-toggle-border-radius: 8px;
	--dropdown-toggle-text-color: #333;
	--dropdown-toggle-hover-color: #f7f7f7;
	--dropdown-toggle-a-hover-color: #f7f7f7;
	--dropdown-toggle-content-background-color: #fff;

	--project-tag-color: #f5f5f5;
	--project-button-color: #f5f5f5;
	--project-button-tooltip-background-color: #333;
	--project-button-tooltip-text-color: #fff;
	--project-button-svg-color: #333;
	--project-button-hover-color: #e0e0e0;

	--footer-background-color: #fff;
	--footer-text: #828c94;
}

/* * {
	-webkit-user-select: none;
	-moz-user-select: none;
	-ms-user-select: none;
	user-select: none;
} */

html, body {
	height: 100%;
	margin: 0;
}

body {
	font-family: "Pretendard Variable", Pretendard, "Pretendard JP Variable", "Pretendard JP",
				-apple-system, BlinkMacSystemFont, system-ui, Roboto,
				"Helvetica Neue", "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic",
				"Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol",
				sans-serif;
	background-color: #f8f9fa;
	color: var(--base-text-color);
	line-height: 1.6;

	display: flex;
	flex-direction: column;
}

.navigation-container {
	background-color: var(--navigation-background-color);
	color: var(--navigation-text-color);

	text-align: center;
	position: fixed;

	height: 100px;
	top: 0;
	width: 100%;
	z-index: 10;
}

.navigation {
	padding: 2rem var(--base-padding);
	display: flex;
	align-items: center;
	justify-content: space-between;
	white-space: nowrap;
	margin: 0 auto;
}

.navigation .navigation-menu {
	display: flex;
	align-items: center;
}

.navigation .navigation-menu a {
	font-size: 1rem;
	text-decoration: none;
	color: inherit;
	padding-left: 3rem;
}

.navigation .navigation-menu a:hover {
	font-weight: 600;
}

.navigation .navigation-menu .language-selector {
	padding-left: 3rem;
	text-decoration: none;
	color: inherit;

	position: relative;
	display: inline-block;
}

.navigation .navigation-menu .language-selector .dropdown-toggle {
	width: 10rem;
	height: 3rem;

	font-size: 1rem;
	text-align: left;
	padding-left: 1rem;
	
	border: 1px solid var(--dropdown-toggle-border-color);
	border-radius: var(--dropdown-toggle-border-radius);
	background-color: var(--dropdown-toggle-background-color);
	appearance: none;
	background-image: url("data:image/svg+xml,%3Csvg width='14' height='10' viewBox='0 0 14 10' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l6 6 6-6' stroke='%23666' stroke-width='2' fill='none' fill-rule='evenodd'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right 1rem center;
	background-size: 12px 8px;
	cursor: pointer;
	transition: all 0.3s ease;
}

.navigation .navigation-menu .language-selector .dropdown-toggle:hover {
	background-color: var(--dropdown-toggle-hover-color);
}

.navigation .navigation-menu .language-selector .dropdown-toggle,
.navigation .navigation-menu .language-selector .dropdown-toggle-content {
	width: 10rem;
	box-sizing: border-box;
}

.navigation .navigation-menu .language-selector .dropdown-toggle-content {
	display: none;
	position: absolute;
	top: 100%;
	right: 0;
	background-color: var(--dropdown-toggle-content-background-color);
	border: 1px solid var(--dropdown-toggle-border-color);
	border-radius: var(--dropdown-toggle-border-radius);
	box-shadow: 0 4px 6px var(--box-shadow-color);
	z-index: 1000;
	margin-top: 0.5rem;
}

.navigation .navigation-menu .language-selector .dropdown-toggle-content a {
	display: block;
	padding: 0.5rem 1rem;
	text-decoration: none;
	color: var(--dropdown-toggle-text-color);
}

.navigation .navigation-menu .language-selector .dropdown-toggle-content a:first-child {
  border-top-left-radius: var(--dropdown-toggle-border-radius);
  border-top-right-radius: var(--dropdown-toggle-border-radius);
}

.navigation .navigation-menu .language-selector .dropdown-toggle-content a:last-child {
  border-bottom-left-radius: var(--dropdown-toggle-border-radius);
  border-bottom-right-radius: var(--dropdown-toggle-border-radius);
}

.navigation .navigation-menu .language-selector .dropdown-toggle-content a:hover,
.navigation .navigation-menu .language-selector .dropdown-toggle-content a.selected {
	background-color: var(--dropdown-toggle-a-hover-color);
}

.navigation .navigation-menu .language-selector .dropdown-toggle-content.show {
	display: block;
}

main {
	flex: 1 1 auto;
	display: flex;
	background-color: ver(--base-background-color);

	flex-direction: column;
}

h1 {
	font-size: 1.4rem;
	margin: 0;
}

main #projects {
	padding: 11.25rem var(--base-padding) 6rem var(--base-padding);
}


.projects-header {
	padding: 4rem 0;
}

.projects-header h2 {
	font-size: 3rem;
	margin: 0;
}

.projects-header p {
	font-size: 1.2rem;
}

.projects-header .source {
	font-size: 1rem;
	margin-top: 0;
	margin-bottom: 3rem;
	color: var(--mini-about-text-color);
}

.project-container {
	display: flex;
	gap: 2rem;
	flex-direction: column;
	align-items: center;
}

.project-item {
	display: flex;
	gap: 2rem;
	padding: 0.5rem 0;
	align-items: center;

	width: 100%;
	max-width: 1200px;
	flex-wrap: wrap;
	justify-content: flex-start;

	opacity: 0;
	transform: translateY(20px);
}

.project-item.visible {
	animation-name: slide-up;
	animation-duration: 500ms;
	animation-fill-mode: forwards;
}

@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.project-image-section {
	flex: 1 1 40%;
	width: 100%;
}

.project-image-section img {
	width: 100%;
	height: auto;
	border-radius: 8px;
	object-fit: contain;
	display: block;
	/* mix-blend-mode: multiply; */
}

.project-info-section {
	flex: 1 1 55%;
	/* padding-top: 2rem; */
}

.project-info-section .project-title {
	font-size: 2rem;
	font-weight: 600;
}

.project-info-section .project-buttons {
	margin-top: 1rem;
	display: flex;
	gap: 0.8rem;
}

.project-info-section .project-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	background-color: var(--project-button-color);
	border-radius: 8px;
	text-decoration: none;
	color: var(--project-button-svg-color);
	transition: background-color 0.3s ease, transform 0.2s ease;
}

.project-info-section .project-button svg {
	width: 20px;
	height: 20px;
}

.project-info-section .project-button:hover {
	background-color: var(--project-button-hover-color);
	transform: scale(1.1);
}

.project-info-section .project-button::after {
	content: attr(data-tooltip);
	position: absolute;
	bottom: 100%;
	left: 50%;
	transform: translateX(-50%);

	background-color: var(--project-button-tooltip-background-color);
	color: #fff;

	font-size: 0.6rem;
	padding: 0.3rem 0.6rem;
	border-radius: 8px;
	white-space: nowrap;
	opacity: 0;
	pointer-events: none;
	transition: opacity 0.2s ease, transform 0.2s ease;
}

.project-info-section .project-button:hover::after {
	opacity: 1;
	transform: translateX(-50%) translateY(-4px);
}

.project-info-section .github-button::after {
	content: "GitHub";
}

.project-info-section .vercel-button::after {
	content: "Vercel";
}

.project-info-section .project-tech-tags {
	margin-top: 0.5rem;
	display: flex;
	gap: 0.5rem;
	flex-wrap: wrap;
}

.project-info-section .project-tech-tags .tech-tag {
	background-color: var(--project-tag-color);
	color: var(--highlight-color);
	font-size: 0.8rem;
	font-weight: 500;
	padding: 0.4rem 0.6rem;
	border-radius: 4px;
}




footer {
	flex: 0 0 auto;
	padding: 2rem var(--base-padding);
	background-color: var(--footer-background-color);
	color: var(--footer-text);
}

footer #name {
	font-size: 18px;
	font-weight: 500;
}

footer #contact,
footer #copyright {
	font-size: 14px;
	font-weight: 300;
	color: var(--footer-text);
	margin: 0;
}

footer #contact a {
	text-decoration: none;
	color: inherit;
}


@media (max-width: 1024px) {
	:root {
		--base-padding: 4rem;
	}
}