@charset "utf-8";

/* リセット */
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

/* ベーススタイル - ダークモード */
body {
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
	font-size: 16px;
	line-height: 1.8;
	color: #e0e0e0;
	background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
	background-attachment: fixed;
	position: relative;
	overflow-x: hidden;
}

main {
	position: relative;
	z-index: 2;
}

img {
	max-width: 100%;
	height: auto;
	display: block;
}

a {
	color: #64b5f6;
	text-decoration: none;
	transition: all 0.3s;
}

a:hover {
	color: #90caf9;
	opacity: 0.8;
}

.container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 40px;
}

/* ヘッダー - ダークモード */
.header {
	background: rgba(26, 26, 46, 0.95);
	backdrop-filter: blur(20px);
	padding: 20px 0;
	border-bottom: 2px solid rgba(100, 181, 246, 0.3);
	box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
	position: sticky;
	top: 0;
	z-index: 100;
}

.header .container {
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.header-logo img {
	height: 50px;
	width: auto;
	max-width: 400px;
	filter: invert(1) brightness(1.1);
}

.header-nav {
	display: flex;
	gap: 20px;
}

.nav-link {
	color: #ffffff;
	font-size: 18px;
	font-weight: 600;
	padding: 12px 28px;
	border-radius: 30px;
	background: rgba(255, 255, 255, 0.15);
	border: 2px solid rgba(255, 255, 255, 0.3);
	transition: all 0.3s ease;
	position: relative;
	text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.nav-link:hover {
	background: linear-gradient(135deg, #64b5f6, #42a5f5);
	color: #ffffff;
	border-color: #64b5f6;
	transform: translateY(-2px);
	box-shadow: 0 6px 20px rgba(100, 181, 246, 0.6);
	opacity: 1;
}

/* ヒーローセクション */
.hero {
	position: relative;
	height: 600px;
	overflow: hidden;
}

.hero-slider {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}

.hero-slide {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	opacity: 0;
	transition: opacity 1.5s ease-in-out;
}

.hero-slide.active {
	opacity: 1;
}

.hero-slide img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.hero-overlay {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: linear-gradient(135deg, rgba(44, 62, 80, 0.85), rgba(52, 73, 94, 0.75));
	display: flex;
	align-items: center;
	justify-content: center;
	z-index: 1;
}

.hero .container {
	text-align: center;
	z-index: 2;
}

.hero-title {
	font-size: 52px;
	font-weight: 700;
	margin-bottom: 25px;
	color: #ffffff;
	line-height: 1.3;
	text-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
	letter-spacing: 2px;
	animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
	font-size: 28px;
	color: #ffffff;
	font-weight: 400;
	text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
	letter-spacing: 1px;
	animation: fadeInUp 1s ease-out 0.3s both;
}

@keyframes fadeInUp {
	from {
		opacity: 0;
		transform: translateY(30px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

/* セクション共通 */
section {
	padding: 100px 0;
	position: relative;
}

.section-title {
	font-size: 52px;
	font-weight: 700;
	text-align: center;
	margin-bottom: 15px;
	background: linear-gradient(135deg, #1a1a1a, #2c3e50, #34495e);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
	letter-spacing: 4px;
	position: relative;
	display: inline-block;
	width: 100%;
}

.section-title::after {
	content: "";
	position: absolute;
	bottom: -15px;
	left: 50%;
	transform: translateX(-50%);
	width: 120px;
	height: 4px;
	background: linear-gradient(90deg, transparent, #2c3e50, #34495e, transparent);
	border-radius: 2px;
}

.section-subtitle {
	font-size: 22px;
	text-align: center;
	margin-bottom: 70px;
	color: #666666;
	font-weight: 400;
	letter-spacing: 1px;
}

/* コンセプトセクション */
.concept {
	background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 50%, #eceff1 100%);
	position: relative;
	overflow: hidden;
}

.concept::before {
	content: "";
	position: absolute;
	top: -50%;
	right: -10%;
	width: 600px;
	height: 600px;
	background: radial-gradient(circle, rgba(44, 62, 80, 0.08) 0%, transparent 70%);
	pointer-events: none;
}

.concept::after {
	content: "";
	position: absolute;
	bottom: -30%;
	left: -10%;
	width: 500px;
	height: 500px;
	background: radial-gradient(circle, rgba(52, 73, 94, 0.06) 0%, transparent 70%);
	pointer-events: none;
}

.concept-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 40px;
	max-width: 1200px;
	margin: 0 auto;
	position: relative;
	z-index: 1;
}

.concept-card {
	background: #ffffff;
	padding: 45px 40px;
	border-radius: 25px;
	box-shadow: 0 15px 50px rgba(44, 62, 80, 0.12);
	border: 2px solid rgba(44, 62, 80, 0.1);
	transition: all 0.4s ease;
	position: relative;
	overflow: hidden;
}

.concept-card::before {
	content: "";
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 5px;
	background: linear-gradient(90deg, #2c3e50, #34495e);
}

.concept-card:hover {
	transform: translateY(-10px);
	box-shadow: 0 25px 60px rgba(44, 62, 80, 0.2);
	border-color: #2c3e50;
}

.concept-card-number {
	width: 70px;
	height: 70px;
	margin: 0 auto 25px;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 32px;
	font-weight: 700;
	color: #ffffff;
	background: linear-gradient(135deg, #2c3e50, #34495e);
	border-radius: 15px;
	box-shadow: 0 5px 20px rgba(44, 62, 80, 0.3);
	letter-spacing: 2px;
}

.concept-card-title {
	font-size: 26px;
	font-weight: 700;
	color: #2c3e50;
	margin-bottom: 30px;
	text-align: center;
	letter-spacing: 1px;
}

.concept-card-content {
	display: flex;
	flex-direction: column;
	gap: 20px;
}

.concept-item {
	padding: 18px 22px;
	background: linear-gradient(135deg, rgba(44, 62, 80, 0.05), rgba(52, 73, 94, 0.03));
	border-radius: 12px;
	border-left: 4px solid #2c3e50;
	transition: all 0.3s ease;
}

.concept-item:hover {
	background: linear-gradient(135deg, rgba(44, 62, 80, 0.1), rgba(52, 73, 94, 0.06));
	transform: translateX(8px);
}

.concept-item-label {
	display: block;
	font-size: 17px;
	font-weight: 700;
	color: #2c3e50;
	margin-bottom: 6px;
}

.concept-item-desc {
	font-size: 15px;
	color: #666666;
	line-height: 1.7;
	margin: 0;
}

.concept-feature {
	padding: 15px 0;
	position: relative;
	padding-left: 20px;
}

.concept-feature::before {
	content: "";
	position: absolute;
	left: 0;
	top: 20px;
	width: 6px;
	height: 6px;
	background: #2c3e50;
	border-radius: 50%;
}

.concept-feature-text {
	font-size: 16px;
	color: #444444;
	line-height: 1.8;
	margin: 0;
}

.concept-contact-info {
	margin-top: 25px;
	padding-top: 25px;
	border-top: 2px solid rgba(44, 62, 80, 0.1);
}

.concept-email {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 12px;
	padding: 18px 30px;
	background: linear-gradient(135deg, #2c3e50, #34495e);
	color: #ffffff;
	border-radius: 50px;
	font-weight: 700;
	font-size: 17px;
	transition: all 0.3s ease;
	box-shadow: 0 5px 20px rgba(44, 62, 80, 0.3);
}

.concept-email:hover {
	background: linear-gradient(135deg, #34495e, #2c3e50);
	transform: translateY(-3px);
	box-shadow: 0 8px 25px rgba(44, 62, 80, 0.4);
	opacity: 1;
}

.email-label {
	font-size: 14px;
	font-weight: 700;
	letter-spacing: 2px;
	padding: 4px 12px;
	background: rgba(255, 255, 255, 0.2);
	border-radius: 5px;
}

.email-text {
	letter-spacing: 0.5px;
}

/* サービスセクション */
.services {
	background: linear-gradient(180deg, #ffffff 0%, #fafafa 100%);
	position: relative;
	overflow: hidden;
}

.services::before {
	content: "";
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width: 800px;
	height: 800px;
	background: radial-gradient(circle, rgba(44, 62, 80, 0.03) 0%, transparent 70%);
	pointer-events: none;
}

.service-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 45px;
	margin-top: 60px;
	max-width: 1100px;
	margin-left: auto;
	margin-right: auto;
}

.service-card {
	background: #ffffff;
	border-radius: 20px;
	overflow: hidden;
	border: 2px solid rgba(44, 62, 80, 0.15);
	box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
	transition: all 0.4s ease;
	position: relative;
}

.service-card:hover {
	transform: translateY(-15px) scale(1.03);
	box-shadow: 0 20px 50px rgba(44, 62, 80, 0.3);
	border-color: #2c3e50;
}

.service-image {
	position: relative;
	width: 100%;
	height: 250px;
	overflow: hidden;
}

.service-image::after {
	content: "";
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: linear-gradient(180deg, transparent 0%, rgba(44, 62, 80, 0.4) 100%);
}

.service-image img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 0.6s ease;
}

.service-card:hover .service-image img {
	transform: scale(1.15);
}

.service-badge {
	position: absolute;
	bottom: 15px;
	left: 15px;
	background: linear-gradient(135deg, #2c3e50, #34495e);
	color: #ffffff;
	padding: 10px 24px;
	font-size: 13px;
	font-weight: 700;
	letter-spacing: 2px;
	border-radius: 25px;
	box-shadow: 0 4px 15px rgba(44, 62, 80, 0.6);
	z-index: 1;
}

.service-title {
	font-size: 22px;
	font-weight: 700;
	padding: 25px 25px 15px;
	color: #333333;
}

.service-description {
	font-size: 16px;
	padding: 0 25px 30px;
	color: #666666;
	line-height: 1.9;
}

/* 会社概要セクション */
.about {
	background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 50%, #eceff1 100%);
	position: relative;
	overflow: hidden;
}

.about::before {
	content: "";
	position: absolute;
	top: -20%;
	left: -15%;
	width: 700px;
	height: 700px;
	background: radial-gradient(circle, rgba(44, 62, 80, 0.05) 0%, transparent 70%);
	pointer-events: none;
}

.company-wrapper {
	max-width: 1000px;
	margin: 0 auto;
	background: #ffffff;
	border-radius: 25px;
	overflow: hidden;
	box-shadow: 0 15px 50px rgba(44, 62, 80, 0.15);
	border: 2px solid rgba(44, 62, 80, 0.1);
	position: relative;
	z-index: 1;
}

.company-header {
	background: linear-gradient(135deg, #2c3e50, #34495e, #1a1a1a);
	padding: 50px 40px;
	text-align: center;
	position: relative;
	overflow: hidden;
}

.company-header::before {
	content: "";
	position: absolute;
	top: -50%;
	right: -20%;
	width: 400px;
	height: 400px;
	background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
	pointer-events: none;
}

.company-logo-section {
	position: relative;
	z-index: 1;
}

.company-name-jp {
	font-size: 36px;
	font-weight: 700;
	color: #ffffff;
	margin-bottom: 12px;
	letter-spacing: 2px;
	text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.company-name-en {
	font-size: 18px;
	font-weight: 600;
	color: rgba(255, 255, 255, 0.85);
	letter-spacing: 3px;
	text-transform: uppercase;
}

.company-info-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 0;
}

.company-info-item {
	padding: 40px 35px;
	border-right: 1px solid rgba(44, 62, 80, 0.1);
	border-bottom: 1px solid rgba(44, 62, 80, 0.1);
	transition: all 0.3s ease;
	position: relative;
}

.company-info-item:nth-child(2n) {
	border-right: none;
}

.company-info-item:last-child,
.company-info-item:nth-last-child(2) {
	border-bottom: none;
}

.company-info-item.full-width {
	grid-column: 1 / -1;
	border-right: none;
}

.company-info-item:hover {
	background: linear-gradient(135deg, rgba(44, 62, 80, 0.03), rgba(52, 73, 94, 0.02));
}

.info-content {
	width: 100%;
}

.info-label {
	font-size: 14px;
	font-weight: 700;
	color: #2c3e50;
	text-transform: uppercase;
	letter-spacing: 1.5px;
	margin-bottom: 10px;
}

.info-value {
	font-size: 18px;
	color: #333333;
	line-height: 1.8;
	font-weight: 500;
}

.business-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-top: 5px;
}

.business-tag {
	display: inline-block;
	padding: 10px 20px;
	background: linear-gradient(135deg, #2c3e50, #34495e);
	color: #ffffff;
	border-radius: 25px;
	font-size: 15px;
	font-weight: 600;
	letter-spacing: 0.5px;
	transition: all 0.3s ease;
	box-shadow: 0 3px 10px rgba(44, 62, 80, 0.2);
}

.business-tag:hover {
	background: linear-gradient(135deg, #34495e, #2c3e50);
	transform: translateY(-2px);
	box-shadow: 0 5px 15px rgba(44, 62, 80, 0.3);
}

/* コンタクトセクション */
.contact {
	background: linear-gradient(180deg, #fafafa 0%, #ffffff 100%);
	position: relative;
	overflow: hidden;
}

.contact::before {
	content: "";
	position: absolute;
	top: 50%;
	right: -20%;
	width: 600px;
	height: 600px;
	background: radial-gradient(circle, rgba(44, 62, 80, 0.04) 0%, transparent 70%);
	pointer-events: none;
}

.contact-box {
	max-width: 900px;
	margin: 0 auto;
	text-align: center;
	background: linear-gradient(135deg, #f8f9fa, #eceff1);
	padding: 70px 50px;
	border-radius: 20px;
	border: 3px solid #2c3e50;
	box-shadow: 0 15px 50px rgba(44, 62, 80, 0.2);
}

.contact-text {
	font-size: 26px;
	margin-bottom: 45px;
	color: #333333;
	font-weight: 700;
	letter-spacing: 1px;
}

.contact-methods {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 30px;
	max-width: 800px;
	margin: 0 auto;
}

.contact-button {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	background: linear-gradient(135deg, #2c3e50, #34495e);
	color: #ffffff;
	padding: 35px 25px;
	border-radius: 20px;
	transition: all 0.4s ease;
	box-shadow: 0 10px 30px rgba(44, 62, 80, 0.3);
	position: relative;
	overflow: hidden;
	min-height: 180px;
}

.contact-button::before {
	content: "";
	position: absolute;
	top: 50%;
	left: 50%;
	width: 0;
	height: 0;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.3);
	transform: translate(-50%, -50%);
	transition: width 0.6s, height 0.6s;
}

.contact-button:hover::before {
	width: 400px;
	height: 400px;
}

.contact-button:hover {
	background: linear-gradient(135deg, #34495e, #2c3e50);
	transform: translateY(-8px);
	box-shadow: 0 15px 40px rgba(44, 62, 80, 0.5);
	opacity: 1;
}

.button-label {
	font-size: 18px;
	font-weight: 700;
	letter-spacing: 3px;
	padding: 8px 20px;
	background: rgba(255, 255, 255, 0.2);
	border-radius: 8px;
	margin-bottom: 15px;
	display: block;
}

.button-text {
	font-size: 20px;
	font-weight: 700;
	margin-bottom: 12px;
	display: block;
	letter-spacing: 1px;
}

.button-detail {
	font-size: 18px;
	font-weight: 600;
	opacity: 0.95;
	display: block;
	letter-spacing: 0.5px;
}

/* フッター - ダークモード */
.footer {
	background: linear-gradient(135deg, #0f1419, #1a1a2e, #16213e);
	padding: 70px 0 35px;
	border-top: 2px solid rgba(100, 181, 246, 0.2);
	box-shadow: 0 -5px 30px rgba(0, 0, 0, 0.5);
}

.footer-logo {
	text-align: center;
	margin-bottom: 35px;
}

.footer-logo img {
	height: 55px;
	width: auto;
	max-width: 500px;
	margin: 0 auto;
	filter: invert(1) brightness(1.1);
}

.footer-info {
	text-align: center;
	margin-bottom: 35px;
}

.footer-info p {
	font-size: 16px;
	color: #ffffff;
	margin-bottom: 10px;
	line-height: 1.9;
	letter-spacing: 0.5px;
}

.footer-copyright {
	text-align: center;
	font-size: 14px;
	color: rgba(255, 255, 255, 0.9);
	padding-top: 25px;
	border-top: 1px solid rgba(255, 255, 255, 0.3);
	letter-spacing: 1px;
}

/* レスポンシブ */
@media (max-width: 992px) {
	.concept-grid {
		grid-template-columns: 1fr;
		gap: 30px;
	}

	.service-grid {
		grid-template-columns: 1fr;
		gap: 35px;
	}

	.company-info-grid {
		grid-template-columns: 1fr;
	}

	.company-info-item {
		border-right: none;
	}

	.contact-methods {
		grid-template-columns: 1fr;
		gap: 20px;
	}
}

@media (max-width: 768px) {
	.container {
		padding: 0 20px;
	}

	.header .container {
		flex-direction: column;
		gap: 20px;
	}

	.header-nav {
		gap: 10px;
		flex-wrap: wrap;
		justify-content: center;
	}

	.nav-link {
		font-size: 15px;
		padding: 10px 18px;
	}

	.hero {
		height: 400px;
	}

	.hero-title {
		font-size: 28px;
	}

	.hero-subtitle {
		font-size: 20px;
	}

	.section-title {
		font-size: 36px;
	}

	.concept-card {
		padding: 35px 25px;
	}

	.concept-card-icon {
		font-size: 48px;
	}

	.concept-card-title {
		font-size: 22px;
	}

	.company-name-jp {
		font-size: 28px;
	}

	.company-name-en {
		font-size: 16px;
	}

	.company-header {
		padding: 40px 30px;
	}

	.company-info-item {
		padding: 30px 25px;
	}

	.business-tags {
		gap: 8px;
	}

	.business-tag {
		font-size: 14px;
		padding: 8px 16px;
	}

	.contact-box {
		padding: 50px 30px;
	}

	.contact-text {
		font-size: 22px;
	}

	.button-icon {
		font-size: 40px;
	}

	.button-text {
		font-size: 18px;
	}

	.button-detail {
		font-size: 16px;
	}

	.contact-box {
		padding: 50px 30px;
	}
}