@charset "UTF-8";
@charset "iso-8859-15";

/* Reset and Base Styles */
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

:root {
	--primary-color: #2563eb;
	--primary-dark: #1e40af;
	--secondary-color: #0ea5e9;
	--accent-color: #f59e0b;
	--dark-bg: #1e293b;
	--darker-bg: #0f172a;
	--light-bg: #f8fafc;
	--text-dark: #1e293b;
	--text-light: #64748b;
	--text-white: #ffffff;
	--border-color: #e2e8f0;
	--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
	--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
	--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
	--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

html {
	scroll-behavior: smooth;
}

body {
	font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
	line-height: 1.7;
	color: var(--text-dark);
	background-color: var(--text-white);
}

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

/* Header */
.header {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	background-color: rgba(255, 255, 255, 0.95);
	backdrop-filter: blur(10px);
	box-shadow: var(--shadow-sm);
	z-index: 1000;
	transition: all 0.3s ease;
}

.header .container {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 1rem 20px;
}

.logo h1 {
	font-size: 1.25rem;
	font-weight: 700;
	color: var(--primary-color);
}

.nav ul {
	display: flex;
	list-style: none;
	gap: 2rem;
}

.nav a {
	text-decoration: none;
	color: var(--text-dark);
	font-weight: 500;
	font-size: 0.9rem;
	transition: color 0.3s ease;
	position: relative;
}

.nav a::after {
	content: '';
	position: absolute;
	bottom: -5px;
	left: 0;
	width: 0;
	height: 2px;
	background-color: var(--primary-color);
	transition: width 0.3s ease;
}

.nav a:hover {
	color: var(--primary-color);
}

.nav a:hover::after {
	width: 100%;
}

.mobile-menu-btn {
	display: none;
	flex-direction: column;
	gap: 4px;
	background: none;
	border: none;
	cursor: pointer;
	padding: 8px;
}

.mobile-menu-btn span {
	width: 25px;
	height: 3px;
	background-color: var(--text-dark);
	border-radius: 2px;
	transition: all 0.3s ease;
}

/* ハンバーガーメニューのアクティブ状態 */
.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}


/* Hero Section - Green Theme */
.hero {
	position: relative;
	min-height: 100vh;
	display: flex;
	align-items: center;
	justify-content: center;
	/* 背景画像の設定 */
	background-image: url('images/bg_km.jpg'); /* 画像ファイル名に合わせて変更 */
	background-size: cover; /* セクション全体を覆うように拡大・縮小 */
	background-position: center; /* 画像を中央に配置 */
	background-repeat: no-repeat; /* 画像の繰り返しを防止 */
	/* background: linear-gradient(135deg, #2d5016 0%, #4a7c2c 50%, #5c9940 100%); /* 元のグラデーション */
	color: white;
	overflow: hidden;
	padding: 100px 20px;
	text-align: center;
 }

.hero::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
	opacity: 0.3;
}

.hero-overlay {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: rgba(0, 0, 0, 0.3);
}

.hero-content {
	position: relative;
	z-index: 1;
	text-align: center;
	padding: 2rem;
	max-width: 900px;
	margin: 0 auto;
}

.hero-title {
	font-size: 4.8rem;
	font-weight: 700;
	margin-bottom: 0px;
	line-height: 1.4;
	text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
	font-size: 1.3rem;
	font-weight: 500;
	margin-bottom: 0px;
	opacity: 0.95;
	animation: fadeInUp 1s ease 0.2s both;
}

.hero-date {
	font-size: 1.1rem;
	margin-bottom: 2rem;
	opacity: 0.9;
	animation: fadeInUp 1s ease 0.4s both;
}

.hero-cta {
	display: flex;
	gap: 1rem;
	justify-content: center;
	flex-wrap: wrap;
	animation: fadeInUp 1s ease 0.6s both;
}

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

.hero-features {
	display: flex;
	justify-content: center;
	gap: 60px;
	margin: 40px 0;
}

.hero-feature {
	display: flex;
	flex-direction: column;
	align-items: center;
}

.feature-value {
	font-size: 2.5rem;
	font-weight: 700;
	color: #a8d08d;
	margin-bottom: 8px;
}

.feature-label {
	font-size: 1rem;
	opacity: 0.9;
}

.cta-button {
	display: inline-block;
	background-color: #5c9940;
	color: white;
	font-size: 1.1rem;
	font-weight: 700;
	padding: 16px 48px;
	border-radius: 50px;
	text-decoration: none;
	transition: all 0.3s ease;
	box-shadow: 0 4px 12px rgba(92, 153, 64, 0.4);
	border: 2px solid #a8d08d;
}

.cta-button:hover {
	background-color: #4a7c2c;
	transform: translateY(-2px);
	box-shadow: 0 6px 16px rgba(92, 153, 64, 0.5);
}

/* Hero Section - Gemini */
.cta-primary {
	background-color: #f59e0b; /* アクセントカラー (オレンジ/ゴールド) */
	color: white;
	padding: 15px 30px;
	border-radius: 5px;
	font-weight: bold;
	margin-right: 20px;
	transition: background-color 0.3s;
}
.cta-primary:hover {
	background-color: #d97706;
	text-decoration: none;
}
.cta-secondary {
	color: white;
	border: 2px solid white;
	padding: 15px 30px;
	border-radius: 5px;
	transition: background-color 0.3s;
}
.cta-secondary:hover {
	background-color: rgba(255, 255, 255, 0.1);
	text-decoration: none;
}

a {
	color: #3b82f6; /* リンク色 */
	text-decoration: none;
}
a:hover {
	text-decoration: underline;
}

/* ボタン */
.btn {
	display: inline-block;
	padding: 1rem 2.5rem;
	font-size: 1rem;
	font-weight: 600;
	text-decoration: none;
	border-radius: 8px;
	transition: all 0.3s ease;
	cursor: pointer;
}

.btn2 {
	display: inline-block;
	padding: 0.2rem 4.0rem;
	font-size: 0.9rem;
	font-weight: 600;
	text-decoration: none;
	border-radius: 8px;
	transition: all 0.3s ease;
	cursor: pointer;
	margin-top:16px;
}

.btn-primary {
	background-color: var(--text-white);
	color: var(--primary-color);
	box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
	transform: translateY(-2px);
	box-shadow: var(--shadow-xl);
}

.btn-secondary {
	background-color: transparent;
	color: var(--text-white);
	border: 2px solid var(--text-white);
}

.btn-secondary:hover {
	background-color: var(--text-white);
	color: var(--primary-color);
}

.btn-secondary2 {
	background-color: #f59e0b;;
	color: var(--text-white);
	border: 2px solid var(--text-white);
}

.btn-secondary2:hover {
	background-color: var(--text-white);
	color: var(--primary-color);
}

/* セクション共通 */
.section {
	padding: 6rem 0;
}

.section-light {
	background-color: var(--light-bg);
}

.section-dark {
	background-color: var(--dark-bg);
	color: var(--text-white);
}

.section-header {
	text-align: center;
	margin-bottom: 4rem;
}

.section-title {
	font-size: 2.5rem;
	font-weight: 700;
	margin-bottom: 1rem;
}

.section-subtitle {
	font-size: 1.2rem;
	color: var(--text-light);
	margin-top: 0.5rem;
}

.section-dark .section-subtitle {
	color: rgba(255, 255, 255, 0.7);
}

.section-divider {
	width: 80px;
	height: 4px;
	background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
	margin: 1.5rem auto;
	border-radius: 2px;
}


/* Introduction Section */
.intro-section {
	padding: 80px 20px;
	background-color: #f8f9f8;
	text-align: center;
}

.section-title {
	font-size: 2.2rem;
	font-weight: 700;
	margin-bottom: 24px;
	color: #2d5016;
}

.section-description {
	font-size: 1.1rem;
	color: #555;
	line-height: 2;
	max-width: 800px;
	margin: 0 auto;
}

/* Problem Section */
.problem-section {
	padding: 100px 20px;
	background-color: #fff;
}

.section-heading {
	font-size: 2.5rem;
	font-weight: 700;
	text-align: center;
	margin-bottom: 16px;
	color: #2d5016;
}

.section-subheading {
	font-size: 1.1rem;
	text-align: center;
	color: #666;
	margin-bottom: 60px;
}

.card-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
	gap: 30px;
	margin-top: 40px;
}

.card {
	background: white;
	border-radius: 12px;
	padding: 40px 30px;
	transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.problem-card {
	border: 2px solid #e8f0e3;
	box-shadow: 0 4px 8px rgba(45, 80, 22, 0.08);
}

.problem-card:hover {
	transform: translateY(-5px);
	box-shadow: 0 8px 20px rgba(45, 80, 22, 0.15);
	border-color: #a8d08d;
}

.card-number {
	flex-shrink: 0;
	width: 50px;
	height: 50px;
	background: linear-gradient(135deg, #2d5016 0%, #4a7c2c 50%, #5c9940 100%);
	color: var(--text-white);
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: 700;
	font-size: 1.2rem;
}
/* 
.card-number {
	font-size: 0.9rem;
	font-weight: 700;
	color: #5c9940;
	margin-bottom: 16px;
	letter-spacing: 0.05em;
}
 */

.card-title {
	font-size: 1.5rem;
	font-weight: 700;
	margin-bottom: 16px;
	color: #2d5016;
}

.card-text {
	font-size: 1rem;
	color: #666;
	line-height: 1.8;
}

/* Solution Section */
.solution-section {
	padding: 100px 20px;
	background: linear-gradient(to bottom, #f0f7ed 0%, #e8f0e3 100%);
	text-align: center;
}

.mission-label {
	display: inline-block;
	font-size: 0.875rem;
	font-weight: 700;
	color: #5c9940;
	letter-spacing: 0.1em;
	margin-bottom: 20px;
	padding: 8px 20px;
	border: 2px solid #5c9940;
	border-radius: 24px;
}

.mission-title {
	font-size: 2.5rem;
	font-weight: 700;
	margin-bottom: 16px;
	color: #2d5016;
}

.mission-subtitle {
	font-size: 1.2rem;
	color: #555;
	margin-bottom: 60px;
}

.features-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
	gap: 30px;
	text-align: left;
}

.feature-card {
	background: white;
	border-radius: 12px;
	padding: 35px 28px;
	border: 2px solid #d4e5cb;
	box-shadow: 0 4px 10px rgba(45, 80, 22, 0.08);
	transition: all 0.3s ease;
}

.feature-card:hover {
	transform: translateY(-5px);
	box-shadow: 0 8px 20px rgba(45, 80, 22, 0.15);
	border-color: #5c9940;
}

.feature-number {
	flex-shrink: 0;
	width: 50px;
	height: 50px;
	background: linear-gradient(135deg, #2d5016 0%, #4a7c2c 50%, #5c9940 100%);
	color: var(--text-white);
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: 700;
	font-size: 1.2rem;
}
/*
.feature-number {
	font-size: 0.9rem;
	font-weight: 700;
	color: #5c9940;
	margin-bottom: 16px;
	letter-spacing: 0.05em;
}
*/

.feature-title {
	font-size: 1.3rem;
	font-weight: 700;
	margin-bottom: 16px;
	color: #2d5016;
}

.feature-description {
	font-size: 0.95rem;
	color: #666;
	line-height: 1.8;
}

/* Benefits Section */
.benefits-section {
	padding: 80px 20px;
	background-color: #fff;
}

.benefits-title {
	font-size: 2.2rem;
	font-weight: 700;
	text-align: center;
	margin-bottom: 50px;
	color: #2d5016;
}

.benefits-content {
	max-width: 800px;
	margin: 0 auto;
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
	gap: 20px;
}

.benefit-item {
	display: flex;
	align-items: center;
	font-size: 1.05rem;
	color: #333;
	padding: 12px 0;
}

.checkmark {
	color: #5c9940;
	font-size: 1.5rem;
	margin-right: 16px;
	font-weight: 700;
}

.benefit-text {
	flex: 1;
}

/* Video Section */
.video-section {
	padding: 80px 20px;
	background-color: #fff;
/*
	background-color: #f8f9f8;
*/
	text-align: center;
}

.video-title {
	font-size: 2rem;
	font-weight: 700;
	margin-bottom: 16px;
	color: #2d5016;
}

.video-description {
	font-size: 1.1rem;
	color: #666;
	margin-bottom: 40px;
}

.video-placeholder {
	max-width: 800px;
	margin: 0 auto;
	padding: 10px 10px;
	background-color: #e8f0e3;
	border: 2px solid #a8d08d;

	 border-radius: 16px;
	 background: padding: 5px;
	 filter: drop-shadow(0 0 2px #e8f0e3);
/*
	max-width: 800px;
	margin: 0 auto;
	padding: 100px 40px;
	background-color: #e8f0e3;
	border-radius: 12px;
	border: 2px dashed #a8d08d;
*/
}

.video-button {
	display: inline-block;
	background-color: #5c9940;
	color: white;
	font-size: 1.1rem;
	font-weight: 700;
	padding: 16px 48px;
	border-radius: 50px;
	text-decoration: none;
	transition: all 0.3s ease;
	box-shadow: 0 4px 12px rgba(92, 153, 64, 0.3);
}

.video-button:hover {
	background-color: #4a7c2c;
	transform: translateY(-2px);
	box-shadow: 0 6px 16px rgba(92, 153, 64, 0.4);
}

/* CTA Section */
.cta-section {
	padding: 100px 20px;
	background: linear-gradient(135deg, #2d5016 0%, #4a7c2c 100%);
	color: white;
	text-align: center;
}

.cta-title {
	font-size: 2.5rem;
	font-weight: 700;
	margin-bottom: 20px;
}

.cta-text {
	font-size: 1.2rem;
	margin-bottom: 40px;
	opacity: 0.95;
}

.cta-button-large {
	display: inline-block;
	background-color: #a8d08d;
	color: #2d5016;
	font-size: 1.2rem;
	font-weight: 700;
	padding: 20px 60px;
	border-radius: 50px;
	text-decoration: none;
	transition: all 0.3s ease;
	box-shadow: 0 6px 16px rgba(168, 208, 141, 0.3);
}

.cta-button-large:hover {
	background-color: #c8e6b4;
	transform: translateY(-3px);
	box-shadow: 0 8px 20px rgba(168, 208, 141, 0.4);
}

.structure-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
	gap: 2rem;
}

/* フッター - Claude */
		footer {
			background: #1a1a2e;
			color: white;
			padding: 3rem 0 1.5rem;
		}

		.footer-content {
			display: grid;
			grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
			gap: 2rem;
			margin-bottom: 2rem;
		}

		.footer-section h4 {
			margin-bottom: 1rem;
			color: #4facfe;
		}

		.footer-section a {
			color: #ccc;
			text-decoration: none;
			display: block;
			margin: 0.5rem 0;
		}

		.footer-section a:hover {
			color: white;
		}

		.footer-bottom {
			text-align: center;
			padding-top: 2rem;
			border-top: 1px solid #333;
			color: #999;
		}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    /* ヘッダーのモバイル対応 */
    .nav {
        position: fixed;
        top: 0;
        left: -100%;  /* 初期状態は画面外 */
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        box-shadow: var(--shadow-xl);
        transition: left 0.3s ease;
        z-index: 999;
        padding-top: 80px;
    }

    .nav.active {
        left: 0;  /* アクティブ時に表示 */
    }

    .nav ul {
        flex-direction: column;
        gap: 0;
        padding: 0;
    }

    .nav li {
        border-bottom: 1px solid var(--border-color);
    }

    .nav a {
        display: block;
        padding: 1.2rem 2rem;
        font-size: 1rem;
    }

    .nav a::after {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    /* オーバーレイ追加 */
    .nav.active::before {
        content: '';
        position: fixed;
        top: 0;
        left: 100%;
        width: calc(100vw - 300px);
        height: 100vh;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: -1;
    }

	.hero-title {
		font-size: 4rem;
	}
	
	.hero-subtitle {
		font-size: 1.1rem;
	}

	.hero-features {
		flex-direction: column;
		gap: 30px;
	}
	

	.section {
		padding: 4rem 0;
	}

	.section-title,
	.section-heading,
	.mission-title,
	.cta-title {
		font-size: 1.8rem;
	}
	
	.card-grid,
	.features-grid,
	.benefits-content {
		grid-template-columns: 1fr;
	}
	
	.feature-value {
		font-size: 2rem;
	}

	.content-grid,
	.value-grid,
	.members-grid,
	.activities-grid,
	.membership-plans {
		grid-template-columns: 1fr;
	}

	.footer-content {
		grid-template-columns: 1fr;
		gap: 2rem;
	}

	.footer-links {
		flex-direction: column;
		gap: 2rem;
	}

	.contact-item {
		flex-direction: column;
		gap: 0.5rem;
	}

	.contact-label {
		width: 100%;
	}

	.hero-cta {
		flex-direction: column;
	}

	.btn {
		width: 100%;
		text-align: center;
	}
}

@media (max-width: 480px) {
	.hero {
		padding: 60px 15px;
	}
	
	.problem-section,
	.solution-section,
	.benefits-section,
	.video-section,
	.cta-section {
		padding: 60px 15px;
	}
	
	.hero-title {
		font-size: 3.6rem;
	}

	.hero-subtitle {
		font-size: 1rem;
	}

	.section-title {
		font-size: 1.5rem;
	}

	.logo h1 {
		font-size: 1rem;
	}

	.challenge-item {
		flex-direction: column;
		align-items: center;
		text-align: center;
	}
	.card,
	.feature-card {
		padding: 30px 20px;
	}
	
	.cta-button,
	.cta-button-large {
		padding: 14px 36px;
		font-size: 1rem;
	}
}

/* アニメーション */
@keyframes fadeIn {
	from {
		opacity: 0;
	}
	to {
		opacity: 1;
	}
}

.section {
	animation: fadeIn 0.8s ease;
}

/* スクロール時のヘッダー背景変更 */
.header.scrolled {
	background-color: rgba(255, 255, 255, 1);
	box-shadow: var(--shadow-md);
}