* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

:root {
	/* Primary Color */
	--primary-color: #8036ff;

	/* Grayscale Variation */
	--gray-050-001: rgba(255, 255, 255, 0.8); /* 80% */
	--gray-050-002: rgba(255, 255, 255, 0.4); /* 40% */

	/* Grayscale */
	--gray-900: rgba(17, 17, 17, 1); /* 100% */
	--gray-600: rgba(17, 17, 17, 0.64); /* 64% */
	--gray-500: rgba(17, 17, 17, 0.4); /* 40% */
	--gray-400: rgba(17, 17, 17, 0.32); /* 32% */
	--gray-300: rgba(17, 17, 17, 0.16); /* 16% */
	--gray-200: rgba(17, 17, 17, 0.08); /* 8% */
	--gray-100: rgba(17, 17, 17, 0.04); /* 4% */
	--gray-050: rgba(255, 255, 255, 1); /* 100% */

	/* Gradient */
	--gradient-800: linear-gradient(180deg, rgba(128, 54, 255, 0.8), rgba(128, 54, 255, 0));
	--gradient-400: linear-gradient(180deg, rgba(128, 54, 255, 0.4), rgba(128, 54, 255, 0));
}

body {
	font-family:
		'Pretendard',
		-apple-system,
		BlinkMacSystemFont,
		'Segoe UI',
		Roboto,
		'Helvetica Neue',
		Arial,
		sans-serif;
	line-height: 1.6;
	color: var(--gray-900);
	background-color: var(--gray-050);
}

/* Typography - Pretendard */
.title1 {
	font-size: 96px;
	line-height: 104px;
	letter-spacing: -4%;
	font-weight: 700; /* Bold */
}

.title2 {
	font-size: 72px;
	line-height: 80px;
	letter-spacing: -4%;
	font-weight: 700; /* Bold */
}

.subtitle1 {
	font-size: 42px;
	line-height: 42px;
	letter-spacing: -4%;
	font-weight: 500; /* SemiBold */
}

.subtitle2 {
	font-size: 24px;
	line-height: 32px;
	letter-spacing: -4%;
	font-weight: 500; /* SemiBold */
}

.body1 {
	font-size: 20px;
	line-height: 28px;
	letter-spacing: -4%;
	font-weight: 400; /* Medium */
}

.body2 {
	font-size: 16px;
	line-height: 24px;
	letter-spacing: -4%;
	font-weight: 400; /* Medium */
}

.body2-bold {
	font-size: 16px;
	line-height: 24px;
	letter-spacing: -4%;
	font-weight: 500; /* SemiBold */
}

/* Color Utilities */
.color-primary {
	color: var(--primary-color);
}

.color-gray-900 {
	color: var(--gray-900);
}

.color-gray-600 {
	color: var(--gray-600);
}

.color-gray-500 {
	color: var(--gray-500);
}

.color-gray-400 {
	color: var(--gray-400);
}

.color-gray-300 {
	color: var(--gray-300);
}

.color-gray-200 {
	color: var(--gray-200);
}

.color-gray-100 {
	color: var(--gray-100);
}

.color-gray-050 {
	color: var(--gray-050);
}

/* Buttons */
/* 버튼_크기별 */
.btn-large {
	padding: 12px 36px;
	border-radius: 12px;
	font-size: 24px; /* Subtitle2 */
	font-weight: 500;
	line-height: 32px;
	letter-spacing: -4%;
}

.btn-medium {
	padding: 10px 30px;
	border-radius: 12px;
	font-size: 20px; /* Body1 */
	font-weight: 400;
	line-height: 28px;
	letter-spacing: -4%;
}

.btn-small {
	padding: 4px 12px;
	border-radius: 8px;
	font-size: 16px; /* Body2 */
	font-weight: 400;
	line-height: 24px;
	letter-spacing: -4%;
}

.btn-small-2nd-icon {
	padding: 4px 12px;
	border-radius: 8px;
	font-size: 16px; /* Body2 */
	font-weight: 400;
	line-height: 24px;
	letter-spacing: -4%;
}

/* 버튼_상태별 */
.btn-color {
	background-color: var(--gray-900);
	color: var(--gray-050);
	border: none;
	cursor: pointer;
}

.btn-color:hover {
	background: var(--gradient-800), var(--gray-900);
	color: var(--gray-050-001);
}

.btn-color:active {
	background:
		linear-gradient(180deg, var(--gradient-900) 0%, rgba(128, 54, 255, 0) 80%), var(--gray-900);
	color: var(--gray-050-001);
}

.btn-outline {
	background-color: var(--gray-200);
	color: var(--gray-500);
	border: none;
	cursor: pointer;
}

.btn-outline:hover {
	background-color: var(--gray-300);
	color: var(--gray-500);
}

.btn-outline:active {
	background-color: var(--gray-600);
	color: var(--gray-600);
}

.btn-small-color {
	background-color: var(--gray-900);
	color: var(--gray-050);
	padding: 12px 40px;
	border-radius: 8px;
	font-size: 21px;
	font-weight: 500;
	line-height: 24px;
	letter-spacing: -4%;
	border: none;
	cursor: pointer;
}

.btn-small-color:hover {
	background: linear-gradient(var(--gray-900), var(--gradient-400));
	color: var(--gray-050-001);
}

.btn-small-color:active {
	background: linear-gradient(var(--gray-900), var(--gradient-900));
	color: var(--gray-050-001);
}

/* Segment Control */
/* 세그먼트 컨트롤 - 전체 컨테이너 */
.segment-control {
	display: inline-flex;
	padding: 4px;
	gap: 0px;
	background-color: var(--gray-200);
	border: 0px solid var(--gray-200);
	border-radius: 12px;
}

/* 세그먼트 컨트롤 - 내부 버튼 */
.segment-control-item {
	padding: 4px 12px;
	border-radius: 8px;
	font-size: 21px; /* Body2 */
	font-weight: 500;
	line-height: 24px;
	letter-spacing: -4%;
	border: none;
	cursor: pointer;
	transition: all 0.2s ease;
	background-color: transparent;
	color: var(--gray-400);
}

.segment-control-item.active {
	background-color: var(--gray-200);
	color: var(--gray-600);
	outline: 2px solid var(--gray-300);
}

.container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 20px;
}

/* Header & Navigation */
/* 헤더_비로그인 */
header {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 56px;
	background-color: rgba(255, 255, 255, 0.4);
	backdrop-filter: blur(20px);
	z-index: 1000;
}

.header-container {
	width: 100%;
	max-width: 1920px;
	height: 100%;
	margin: 0 auto;
	position: relative;
	display: flex;
	align-items: center;
	padding: 0 110px;
	box-sizing: border-box;
}

/* 로고 */
.header-logo {
	display: flex;
	align-items: center;
	gap: 12px;
	padding: 4px 12px;
	border-radius: 8px;
	background-color: transparent;
	position: relative;
	z-index: 10;
}

.header-logo-text {
	font-size: 16px;
	font-weight: 500;
	line-height: 24px;
	color: var(--gray-500);
}

.header-logo-icon {
	width: 20px;
	height: 20px;
	position: relative;
	overflow: hidden;
}

.header-logo-icon .absolute {
	position: absolute;
	width: 12px;
	height: 6.5px;
	left: 4px;
	top: 7.5px;
	background: rgba(0, 0, 0, 0.4);
}

/* 네비게이션 메뉴 */
.header-nav {
	display: flex;
	align-items: center;
	gap: 4px;
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
}

.header-nav-item {
	padding: 4px 12px;
	border-radius: 8px;
	background-color: transparent;
	font-size: 16px;
	font-weight: 500;
	line-height: 24px;
	color: var(--gray-500);
	text-decoration: none;
	transition: all 0.2s ease;
}

.header-nav-item:hover {
	background-color: var(--gray-100);
}

/* 로그인 버튼 */
.header-login-btn {
	position: relative;
	margin-left: auto;
	padding: 4px 12px;
	border-radius: 8px;
	background-color: var(--gray-900);
	color: var(--gray-050);
	font-size: 16px;
	font-weight: 500;
	line-height: 24px;
	border: none;
	cursor: pointer;
	transition: all 0.2s ease;
}

.header-login-btn:hover {
	background: linear-gradient(var(--gray-900), var(--gradient-400));
	color: var(--gray-050-001);
}

/* 헤더 장식 요소 */
.header-decoration-1 {
	width: 32px;
	height: 32px;
	left: 110px;
	top: 12px;
	position: absolute;
}

.header-decoration-2 {
	width: 25.1px;
	height: 8.96px;
	left: 141.87px;
	top: 22.96px;
	position: absolute;
	transform: rotate(180deg);
	transform-origin: top left;
	background: linear-gradient(162deg, #292929 0%, #4d4d4d 100%);
}

.header-decoration-3 {
	width: 22.9px;
	height: 6.77px;
	left: 119.1px;
	top: 35.65px;
	position: absolute;
	background: linear-gradient(345deg, black 0%, #4d4d4d 100%);
}

.header-decoration-4 {
	width: 21.52px;
	height: 5.09px;
	left: 120.49px;
	top: 30.58px;
	position: absolute;
	background: linear-gradient(347deg, #949494 0%, #303030 100%);
}

/* 헤더_로그인 */
.header-logged-in {
	background-color: rgba(255, 255, 255, 0.4);
	backdrop-filter: blur(20px);
}

.header-logged-in .header-container {
	padding: 0 110px;
}

/* SELab.ai 아이콘 */
.header-selab-icon {
	position: absolute;
	right: 240px;
	display: flex;
	align-items: center;
	gap: 12px;
}

/* 프로필 아이콘 */
.header-profile-icon {
	position: absolute;
	right: 110px;
	width: 32px;
	height: 32px;
	border-radius: 50%;
	background-color: var(--gray-200);
	cursor: pointer;
}

/* Utility Classes */
/* Layout */
.section-wrapper {
	width: 100%;
	position: relative;
	overflow: hidden;
}

.content-container {
	width: 100%;
	max-width: 1920px;
	height: 100%;
	position: relative;
	margin: 0 auto;
	padding: 0 110px;
}

.flex-center {
	display: flex;
	justify-content: center;
	align-items: center;
}

.inline-flex-center {
	display: inline-flex;
	justify-content: center;
	align-items: center;
}

.flex-column {
	display: flex;
	flex-direction: column;
}

/* Positioning */
.absolute {
	position: absolute;
}

.relative {
	position: relative;
}

.fixed {
	position: fixed;
}

/* Text Styles */
.text-center {
	text-align: center;
}

/* Background */
.bg-white {
	background: white;
}

.bg-black {
	background: black;
}

.bg-transparent {
	background: transparent;
}

/* Common Spacing */
.gap-4 {
	gap: 4px;
}

.gap-10 {
	gap: 10px;
}

.gap-12 {
	gap: 12px;
}

.gap-16 {
	gap: 16px;
}

/* Border Radius */
.rounded-8 {
	border-radius: 8px;
}

.rounded-12 {
	border-radius: 12px;
}

/* Padding */
.p-4-12 {
	padding: 4px 12px;
}

/* Section Specific Classes */
/* 섹션 높이 */
.section-1080 {
	height: 1080px;
}

.section-220 {
	height: 220px;
}

/* Footer Specific */
footer .content-container {
	position: relative;
	max-width: 1920px;
	margin: 0 auto;
	padding: 0 240px;
	box-sizing: border-box;
}

.footer-company-name {
	position: absolute;
	left: 240px;
	top: 96px;
}

.footer-info-group {
	display: inline-flex;
	justify-content: flex-start;
	align-items: center;
	gap: 16px;
	position: absolute;
}

.footer-info-group.ceo {
	left: 240px;
	top: 126px;
}

.footer-info-group.address {
	left: 240px;
	top: 148px;
}

.footer-info-group.business-number {
	left: 378px;
	top: 126px;
	gap: 12px;
}

.footer-link {
	color: white;
	font-size: 14px;
	font-family: Pretendard;
	font-weight: 500;
	line-height: 18px;
	text-decoration: none;
	cursor: pointer;
}

.footer-link.contact {
	position: absolute;
	left: calc(240px + 283px);
	top: 54px;
}

.footer-link.privacy {
	position: absolute;
	left: 240px;
	top: 54px;
}

.footer-link.terms {
	position: absolute;
	left: calc(240px + 147px);
	top: 54px;
}

/* Main Content Specific */
/* SELab Section */
.selab-section {
	width: 100%;
	height: 1080px;
	position: relative;
	background: white;
	overflow: hidden;
}

/* SELab Main Section - Flexbox Layout */
.selab-main {
	background: linear-gradient(180deg, #f5ebff 0%, white 100%);
}

.selab-main .content-container {
	display: flex;
	flex-direction: column;
	align-items: center;
	padding-top: 244px;
}

.selab-main .selab-main-subtitle {
	margin-bottom: 16px;
}

.selab-main .selab-main-title {
	margin-bottom: 48px;
	background: var(--gradient-800), var(--gray-900);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.selab-main .selab-main-description {
	margin-bottom: 160px;
	text-align: center;
}

.selab-main .selab-main-btn {
	width: 320px;
}

.selab-main .scroll-indicator-wrapper {
	margin-top: 300px;
}

.scroll-indicator-wrapper {
	width: 100%;
	text-align: center;
	padding: 36px 0;
}

.scroll-indicator-text {
	color: rgba(0, 0, 0, 0.3);
	font-size: 16px;
	font-family: Pretendard;
	font-weight: 400;
	line-height: 20px;
	word-wrap: break-word;
}

/* Section Title */
.section-title-large {
	color: rgba(127.64, 54.16, 255, 0.6);
	font-size: 72px;
	font-family: Pretendard;
	font-weight: 700;
	line-height: 80px;
	word-wrap: break-word;
}

.section-subtitle {
	color: #8036ff;
	font-size: 24px;
	font-family: Pretendard;
	font-weight: 600;
	line-height: 32px;
	word-wrap: break-word;
}

.section-description {
	color: rgba(0, 0, 0, 0.3);
	font-size: 20px;
	font-family: Pretendard;
	font-weight: 500;
	line-height: 28px;
	word-wrap: break-word;
}

/* SELab Features Section */
.selab-features .content-container {
	display: flex;
	align-items: flex-start;
	flex-direction: column;
	padding-top: 104px;
	padding-bottom: 158px;
}

.selab-features .selab-features-subtitle {
	margin-bottom: 8px;
}

.selab-features .selab-features-title-large {
	margin-bottom: 24px;
}

.selab-features .selab-features-description {
	margin-bottom: 128px;
}

/* SELab Start Section */
.selab-start .content-container {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	position: relative;
	min-height: 1080px;
}

.selab-start .content-container::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: radial-gradient(
		farthest-corner at center,
		rgba(255, 255, 255, 1) 0%,
		rgba(255, 255, 255, 0.8) 40%,
		rgba(255, 255, 255, 0.3) 80%,
		rgba(255, 255, 255, 0) 100%
	);
	z-index: 1;
}

.selab-start-content {
	position: relative;
	z-index: 10;
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
	padding: 80px 120px;
	border-radius: 24px;
}

.selab-start-subtitle {
	margin-bottom: 8px;
}

.selab-start-title {
	margin-bottom: 72px;
}

/* Detail Sections Specific */
.detail-section {
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
}

.detail-section:nth-child(3) {
	background-image: url('images/BG_1.png');
}

.detail-section:nth-child(4) {
	background-image: url('images/BG_2.png');
}

.detail-section:nth-child(5) {
	background-image: url('images/BG_3.png');
}

.detail-section:nth-child(6) {
	background-image: url('images/BG_4.png');
}

.detail-section .content-container {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	padding-top: 104px;
	padding-bottom: 156px;
}

.detail-section .section-subtitle {
	margin-bottom: 8px;
}

.detail-section .section-title-large {
	margin-bottom: 24px;
	background: var(--gradient-800), var(--gray-900);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.detail-section .section-description {
	margin-bottom: auto;
}

.detail-section .back-button {
	width: 320px;
	margin-top: 156px;
}

/* Feature Cards */
.feature-grid {
	width: 100%;
	max-width: 1700px;
	display: flex;
	justify-content: center;
	align-items: stretch;
	gap: 28px;
}

.feature-card {
	flex: 1 1 0;
	min-height: 438px;
	display: flex;
	flex-direction: column;
	background: rgba(0, 0, 0, 0.04);
	overflow: hidden;
	border-radius: 24px;
	outline: 1px rgba(0, 0, 0, 0.1) solid;
	outline-offset: -1px;
	padding: 16px 24px 24px 24px;
	position: relative;
}

.feature-card-title {
	color: var(--gray-900);
	font-size: 24px;
	font-family: Pretendard;
	font-weight: 500;
	line-height: 32px;
	word-wrap: break-word;
	margin-bottom: 4px;
}

.feature-card-description {
	margin-bottom: 24px;
}

.feature-card-link {
	color: var(--gray-300);
	font-size: 16px;
	font-family: Pretendard;
	font-weight: 400;
	line-height: 24px;
	word-wrap: break-word;
	text-decoration: none;
	cursor: pointer;
	text-align: center;
	margin-top: auto;
}

.feature-card img {
	width: 100%;
	height: auto;
	object-fit: contain;
}

.feature-card-images {
	width: 100%;
	height: 280px;
	display: flex;
	justify-content: center;
	align-items: center;
	gap: 10px;
	overflow: visible;
	margin-bottom: 24px;
}

.feature-card-images img {
	width: auto;
	height: 280px;
	object-fit: contain;
}

/* Back Button */
.back-button {
	background: var(--gray-200);
	border-radius: 12px;
	justify-content: center;
	align-items: center;
	gap: 10px;
	display: inline-flex;
	cursor: pointer;
	border: none;
	padding: 10px 30px;
	font-size: 20px;
	font-family: Pretendard;
	font-weight: 400;
	line-height: 28px;
	color: var(--gray-500);
	transition: all 0.2s ease;
}

.back-button:hover {
	background: var(--gray-300);
	color: var(--gray-500);
}

.back-button:active {
	background: var(--gray-500);
	color: var(--gray-600);
}

/* Testimonial Card */
.testimonial-card {
	width: 404px;
	height: 108px;
	position: absolute;
	background: white;
	overflow: hidden;
	border-radius: 12px;
	outline: 1px rgba(0, 0, 0, 0.1) solid;
	outline-offset: -1px;
	z-index: 0;
}

.testimonial-author {
	position: absolute;
	color: #8036ff;
	font-size: 16px;
	font-family: Pretendard;
	font-weight: 600;
	line-height: 24px;
	word-wrap: break-word;
}

.testimonial-text {
	position: absolute;
	color: black;
	font-size: 20px;
	font-family: Pretendard;
	font-weight: 500;
	line-height: 28px;
	word-wrap: break-word;
}

/* Responsive Design */
@media (max-width: 768px) {
	.header-container {
		padding: 0 20px;
	}

	.header-nav {
		display: none;
	}

	.header-login-btn {
		right: 20px;
	}
}

/* AI 대화 버블 */
.ai-bubble {
	position: absolute;
	display: inline-flex;
	justify-content: center;
	align-items: center;
}

.ai-bubble-small {
	padding: 9.83px 29.49px;
	left: 1066px;
	top: 587px;
	opacity: 0.6;
	background: linear-gradient(0deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.1) 100%), white;
	box-shadow: 0px 3.2px 16px rgba(0, 0, 0, 0.05);
	border-radius: 9.83px;
	gap: 8.19px;
}

.ai-bubble-small-text {
	color: white;
	font-size: 19.66px;
	font-family: Pretendard;
	font-weight: 600;
	line-height: 26.21px;
	word-wrap: break-word;
}

.ai-bubble-medium {
	padding: 12.29px 36.86px;
	left: 882px;
	top: 616px;
	background: linear-gradient(0deg, rgba(0, 0, 0, 0.15) 0%, rgba(0, 0, 0, 0.15) 100%), white;
	box-shadow: 0px 4px 40px rgba(0, 0, 0, 0.1);
	border-radius: 12.29px;
	gap: 10.24px;
}

.ai-bubble-medium-text {
	color: white;
	font-size: 24.58px;
	font-family: Pretendard;
	font-weight: 600;
	line-height: 32.77px;
	word-wrap: break-word;
}

.ai-bubble-large {
	padding: 19.2px 57.6px;
	left: 1078px;
	top: 688px;
	background: linear-gradient(0deg, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.5) 100%), white;
	box-shadow: 0px 4px 60px rgba(0, 0, 0, 0.15);
	border-radius: 19.2px;
	gap: 16px;
}

.ai-bubble-large-text {
	color: white;
	font-size: 38.4px;
	font-family: Pretendard;
	font-weight: 600;
	line-height: 51.2px;
	word-wrap: break-word;
}

.ai-bubble-xlarge {
	padding: 24px 72px;
	left: 781px;
	top: 744px;
	background: black;
	box-shadow: 0px 4px 80px rgba(0, 0, 0, 0.25);
	border-radius: 24px;
	gap: 20px;
}

.ai-bubble-xlarge-text {
	color: white;
	font-size: 48px;
	font-family: Pretendard;
	font-weight: 600;
	line-height: 64px;
	word-wrap: break-word;
}

/* 그라디언트 오버레이 */
.gradient-overlay {
	position: absolute;
	background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.2) 100%);
}

/* 후기 카드 클래스 */
.testimonial-card {
	width: 404px;
	height: 108px;
	position: absolute;
	background: white;
	overflow: hidden;
	border-radius: 12px;
	outline: 1px black solid;
	outline-offset: -1px;
}

.testimonial-author {
	position: absolute;
	color: #8036ff;
	font-size: 16px;
	font-family: Pretendard;
	font-weight: 600;
	line-height: 24px;
	word-wrap: break-word;
}

.testimonial-text {
	position: absolute;
	color: black;
	font-size: 20px;
	font-family: Pretendard;
	font-weight: 500;
	line-height: 28px;
	word-wrap: break-word;
}