@charset "UTF-8";

/* =========================================
   1. 変数定義
========================================= */
:root {
	--primary-color: #0052cc;
	--primary-dark: #06244a;
	--text-color: #333333;
	--muted-text: #5f6b7a;
	--light-bg: #eaf0f6;
	--soft-bg: #f7f9fc;
	--white: #ffffff;
	--accent-color: #ff8c00;
	--accent-light: #fff3e3;
	--border-color: #e1e8f0;
	--shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
	--shadow-blue: 0 15px 35px rgba(0, 82, 204, 0.12);
}

/* =========================================
   2. ベース
========================================= */
* {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

html {
	scroll-behavior: smooth;
}

body {
	font-family: 'Noto Sans JP', sans-serif;
	font-size: 18px;
	line-height: 1.8;
	color: var(--text-color);
	background-color: var(--white);
	letter-spacing: 0.02em;
}

a {
	color: inherit;
}

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

.container {
	width: 100%;
	max-width: 1120px;
	margin: 0 auto;
	padding: 0 20px;
}

section {
	padding: 96px 0;
}

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

.center {
	text-align: center;
}

/* =========================================
   3. タイポグラフィ
========================================= */
.section-label {
	color: var(--primary-color);
	font-weight: 900;
	font-size: 15px;
	letter-spacing: 0.12em;
	margin-bottom: 12px;
	text-align: center;
}

.section-label.left {
	text-align: left;
}

.section-title {
	font-size: 36px;
	text-align: center;
	margin-bottom: 44px;
	font-weight: 900;
	line-height: 1.45;
	color: #172033;
}

.section-title.left {
	text-align: left;
	margin-bottom: 28px;
}

.lead-text {
	max-width: 880px;
	margin: 0 auto;
	text-align: center;
	font-size: 19px;
	color: #3f4b5c;
}

p + p {
	margin-top: 18px;
}

/* =========================================
   4. ボタン
========================================= */
.btn-main,
.btn-sub,
.btn-sub-ghost {
	padding: 17px 30px;
	border-radius: 8px;
	text-decoration: none;
	font-weight: 900;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	transition: all 0.3s ease;
	font-size: 17px;
	line-height: 1.4;
	text-align: center;
}

.btn-main {
	background: var(--accent-color);
	color: #ffffff;
	box-shadow: 0 8px 24px rgba(255, 140, 0, 0.28);
}

.btn-main:hover {
	transform: translateY(-3px);
	box-shadow: 0 12px 30px rgba(255, 140, 0, 0.38);
}

.btn-sub {
	background: #ffffff;
	color: var(--primary-color);
	border: 2px solid var(--primary-color);
}

.btn-sub:hover {
	background: #f0f6ff;
	transform: translateY(-2px);
}

.btn-sub-ghost {
	border: 2px solid rgba(255, 255, 255, 0.32);
	color: #ffffff;
	background: rgba(255, 255, 255, 0.04);
}

.btn-sub-ghost:hover {
	background: rgba(255, 255, 255, 0.12);
	border-color: #ffffff;
	transform: translateY(-2px);
}

.btn-small {
	background: var(--primary-color);
	color: #ffffff !important;
	padding: 8px 16px;
	border-radius: 5px;
	text-decoration: none;
	font-size: 15px;
	font-weight: 700;
	transition: background 0.3s;
}

.btn-small:hover {
	background: #003d99;
}

.btn-sub.inverse {
	background: transparent;
	border-color: rgba(255, 255, 255, 0.75);
	color: #ffffff;
}

.btn-sub.inverse:hover {
	background: rgba(255, 255, 255, 0.12);
}

.white-btn {
	background: #ffffff;
	color: var(--primary-color);
	box-shadow: 0 12px 28px rgba(0, 0, 0, 0.18);
}

.white-btn:hover {
	box-shadow: 0 16px 34px rgba(0, 0, 0, 0.22);
}

.cta-area {
	display: flex;
	gap: 16px;
	flex-wrap: wrap;
}

.center-cta {
	justify-content: center;
}

/* =========================================
   5. ヘッダー
========================================= */
.header {
	height: 80px;
	display: flex;
	align-items: center;
	position: fixed;
	top: 0;
	width: 100%;
	background: rgba(255, 255, 255, 0.96);
	backdrop-filter: blur(10px);
	z-index: 1000;
	transition: all 0.3s ease;
}

.header.scrolled {
	height: 62px;
	box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

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

.logo {
	font-weight: 900;
	font-size: 24px;
	color: var(--primary-color);
	text-decoration: none;
	letter-spacing: 0.02em;
}

.nav {
	display: flex;
	align-items: center;
	gap: 24px;
}

.nav a {
	text-decoration: none;
	color: var(--text-color);
	font-size: 15px;
	font-weight: 700;
	transition: color 0.3s;
}

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

/* =========================================
   6. ヒーロー
========================================= */
.hero.dark-mode {
	background: linear-gradient(135deg, #061121 0%, #0a1f3d 55%, #092d61 100%);
	position: relative;
	overflow: hidden;
	padding-top: 180px;
	padding-bottom: 110px;
	color: #ffffff;
}

.hero-bg-gradient {
	position: absolute;
	top: -15%;
	right: -10%;
	width: 58%;
	height: 70%;
	background: radial-gradient(circle, rgba(0, 82, 204, 0.45) 0%, rgba(0, 0, 0, 0) 68%);
	filter: blur(65px);
	z-index: 0;
}

.hero.dark-mode::after {
	content: "";
	position: absolute;
	left: -10%;
	bottom: -20%;
	width: 55%;
	height: 60%;
	background: radial-gradient(circle, rgba(255, 140, 0, 0.22) 0%, rgba(0, 0, 0, 0) 66%);
	filter: blur(80px);
	z-index: 0;
}

.hero-container {
	position: relative;
	z-index: 1;
	display: flex;
	align-items: center;
	gap: 58px;
}

.hero-content {
	flex: 1.05;
}

.hero-badge {
	display: inline-block;
	background: rgba(255, 140, 0, 0.15);
	color: #ffb259;
	padding: 7px 17px;
	border-radius: 50px;
	font-size: 14px;
	font-weight: 900;
	margin-bottom: 22px;
	border: 1px solid rgba(255, 140, 0, 0.34);
}

.hero h1 {
	font-size: 54px;
	line-height: 1.22;
	color: #ffffff;
	margin-bottom: 30px;
	font-weight: 900;
	letter-spacing: 0.01em;
}

.highlight-orange {
	color: var(--accent-color);
}

.sub-copy {
	color: rgba(255, 255, 255, 0.86);
	font-size: 19px;
	margin-bottom: 36px;
	line-height: 1.9;
}

.hero-note {
	margin-top: 22px;
	font-size: 14px;
	color: rgba(255, 255, 255, 0.72);
}

.hero-image {
	flex: 1;
}

.image-wrapper {
	position: relative;
	width: 100%;
	transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
	transition: transform 0.5s ease;
}

.image-wrapper:hover {
	transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.hero-image img {
	width: 100%;
	border-radius: 22px;
	box-shadow:
		0 30px 60px rgba(0, 0, 0, 0.48),
		0 0 42px rgba(0, 82, 204, 0.26);
}

/* =========================================
   7. 課題
========================================= */
.problem-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 24px;
}

.problem-card {
	background: #ffffff;
	padding: 38px 28px;
	border-radius: 16px;
	box-shadow: var(--shadow);
	text-align: center;
	border: 1px solid var(--border-color);
}

.problem-card .icon {
	width: 62px;
	height: 62px;
	background: var(--accent-color);
	color: var(--white);
	border-radius: 50%;
	margin: 0 auto 20px;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: 900;
	font-size: 34px;
	font-family: Arial, sans-serif;
	box-shadow: 0 8px 20px rgba(255, 140, 0, 0.32);
	transition: transform 0.3s ease;
}

.problem-card:hover .icon {
	transform: scale(1.08);
}

.problem-card h3 {
	font-size: 20px;
	line-height: 1.5;
	margin-bottom: 14px;
	color: #172033;
}

.problem-card p {
	font-size: 16px;
	color: var(--muted-text);
	line-height: 1.75;
}

/* =========================================
   8. 画像付きコンテンツ
========================================= */
.content-with-img {
	display: flex;
	align-items: center;
	gap: 60px;
}

.content-with-img.reverse {
	flex-direction: row-reverse;
}

.text-side {
	flex: 1;
}

.img-side {
	flex: 1;
}

.img-side img {
	width: 100%;
	border-radius: 16px;
	box-shadow: var(--shadow);
	border: 1px solid var(--border-color);
}

.check-list {
	list-style: none;
	margin-top: 26px;
}

.check-list li {
	padding-left: 36px;
	position: relative;
	margin-bottom: 14px;
	font-weight: 700;
	font-size: 17px;
}

.check-list li::before {
	content: "✓";
	position: absolute;
	left: 0;
	top: 0;
	color: var(--primary-color);
	font-weight: 900;
	font-size: 20px;
}

/* =========================================
   9. 利用シーン
========================================= */
.usecase-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 22px;
}

.usecase-card {
	background: #ffffff;
	border-radius: 16px;
	overflow: hidden;
	border: 1px solid var(--border-color);
	box-shadow: var(--shadow);
}

.usecase-card img {
	width: 100%;
	aspect-ratio: 4 / 3;
	object-fit: cover;
	background: #dbe3eb;
}

.usecase-card h3 {
	font-size: 18px;
	line-height: 1.45;
	padding: 22px 20px 8px;
	color: var(--primary-color);
	font-weight: 900;
}

.usecase-card p {
	padding: 0 20px 24px;
	font-size: 15px;
	color: var(--muted-text);
	line-height: 1.75;
}

/* =========================================
   10. 機能カード
========================================= */
.feature-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 26px;
}

.feature-card {
	background: #ffffff;
	padding: 38px 28px;
	border-radius: 16px;
	border: 1px solid var(--border-color);
	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
	position: relative;
	overflow: hidden;
	transition: all 0.3s ease;
	z-index: 1;
	min-height: 240px;
}

.feature-card::before {
	content: "";
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 6px;
	background: var(--primary-color);
}

.feature-card:hover {
	transform: translateY(-8px);
	box-shadow: var(--shadow-blue);
	border-color: rgba(0, 82, 204, 0.22);
}

.feature-num {
	position: absolute;
	top: 12px;
	right: 20px;
	font-size: 72px;
	font-weight: 900;
	color: var(--light-bg);
	z-index: -1;
	line-height: 1;
	font-family: Arial, sans-serif;
	transition: color 0.3s ease;
}

.feature-card:hover .feature-num {
	color: rgba(0, 82, 204, 0.08);
}

.feature-card h3 {
	color: var(--primary-color);
	margin-bottom: 18px;
	font-size: 20px;
	font-weight: 900;
	line-height: 1.45;
	margin-top: 8px;
}

.feature-card p {
	font-size: 15.5px;
	line-height: 1.75;
	color: var(--muted-text);
}

/* =========================================
   11. フロー
========================================= */
.flow-image {
	margin-bottom: 44px;
}

.flow-image img {
	width: 920px;
	max-width: 100%;
	margin: 0 auto;
	border-radius: 16px;
	box-shadow: var(--shadow);
	border: 1px solid var(--border-color);
}

.flow-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 20px;
}

.flow-card {
	background: #ffffff;
	padding: 30px 22px;
	border-radius: 16px;
	border: 1px solid var(--border-color);
	box-shadow: var(--shadow);
	position: relative;
}

.flow-card span {
	display: inline-block;
	color: var(--accent-color);
	font-size: 13px;
	font-weight: 900;
	letter-spacing: 0.08em;
	margin-bottom: 10px;
}

.flow-card h3 {
	font-size: 19px;
	margin-bottom: 12px;
	color: #172033;
	font-weight: 900;
}

.flow-card p {
	font-size: 15px;
	color: var(--muted-text);
	line-height: 1.75;
}

/* =========================================
   12. 比較表
========================================= */
.table-wrap {
	overflow-x: auto;
	background: #ffffff;
	border-radius: 16px;
	box-shadow: var(--shadow);
	border: 1px solid var(--border-color);
}

.compare-table {
	width: 100%;
	border-collapse: collapse;
	min-width: 760px;
}

.compare-table th,
.compare-table td {
	padding: 18px 20px;
	border-bottom: 1px solid var(--border-color);
	text-align: left;
	font-size: 16px;
}

.compare-table thead th {
	background: var(--primary-color);
	color: #ffffff;
	font-weight: 900;
}

.compare-table tbody th {
	width: 20%;
	font-weight: 900;
	color: #172033;
	background: #f7f9fc;
}

.compare-table tbody td:nth-child(3) {
	color: var(--primary-color);
	font-weight: 700;
}

.compare-table tr:last-child th,
.compare-table tr:last-child td {
	border-bottom: none;
}

/* =========================================
   13. 無料プラン
========================================= */
.trial-box {
	background: #ffffff;
	border-radius: 22px;
	padding: 58px 46px;
	box-shadow: var(--shadow);
	border: 1px solid var(--border-color);
	text-align: center;
}

.trial-box p {
	max-width: 820px;
	margin-left: auto;
	margin-right: auto;
	color: #3f4b5c;
}

/* =========================================
   14. 社内提案
========================================= */
.proposal-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 22px;
}

.proposal-card {
	background: #ffffff;
	border: 1px solid var(--border-color);
	border-radius: 16px;
	padding: 30px 24px;
	box-shadow: var(--shadow);
}

.proposal-card h3 {
	color: var(--primary-color);
	font-size: 19px;
	line-height: 1.45;
	margin-bottom: 12px;
	font-weight: 900;
}

.proposal-card p {
	color: var(--muted-text);
	font-size: 15px;
	line-height: 1.75;
}

/* =========================================
   15. FAQ
========================================= */
.faq-list {
	max-width: 900px;
	margin: 0 auto;
	display: grid;
	gap: 18px;
}

.faq-item {
	background: #ffffff;
	border-radius: 14px;
	padding: 26px 28px;
	border: 1px solid var(--border-color);
	box-shadow: 0 4px 14px rgba(0, 0, 0, 0.03);
}

.faq-item h3 {
	position: relative;
	font-size: 18px;
	font-weight: 900;
	color: #172033;
	margin-bottom: 10px;
	padding-left: 34px;
	line-height: 1.5;
}

.faq-item h3::before {
	content: "Q";
	position: absolute;
	left: 0;
	top: 0;
	color: var(--primary-color);
	font-weight: 900;
}

.faq-item p {
	position: relative;
	font-size: 16px;
	color: var(--muted-text);
	line-height: 1.75;
	padding-left: 34px;
}

.faq-item p::before {
	content: "A";
	position: absolute;
	left: 0;
	top: 0;
	color: var(--accent-color);
	font-weight: 900;
}

/* =========================================
   16. 最終CTA・フッター
========================================= */
.final-cta {
	background: linear-gradient(135deg, #0052cc 0%, #003d99 100%);
	color: #ffffff;
	text-align: center;
	position: relative;
	overflow: hidden;
}

.final-cta::before {
	content: "";
	position: absolute;
	top: -30%;
	right: -20%;
	width: 60%;
	height: 90%;
	background: radial-gradient(circle, rgba(255, 255, 255, 0.16) 0%, rgba(255, 255, 255, 0) 68%);
	filter: blur(60px);
}

.final-cta .container {
	position: relative;
	z-index: 1;
}

.final-cta .section-title {
	color: #ffffff;
	margin-bottom: 24px;
}

.final-cta p {
	margin-bottom: 38px;
	font-size: 19px;
	color: rgba(255, 255, 255, 0.9);
}

.footer {
	padding: 38px 0;
	border-top: 1px solid var(--border-color);
	text-align: center;
	font-size: 14px;
	color: #777777;
	background: #ffffff;
}

/* =========================================
   17. レスポンシブ
========================================= */
@media (max-width: 1080px) {
	.usecase-grid,
	.flow-grid,
	.proposal-grid {
		grid-template-columns: repeat(2, 1fr);
	}

	.hero-container {
		gap: 40px;
	}

	.hero h1 {
		font-size: 46px;
	}
}

@media (max-width: 992px) {
	body {
		font-size: 17px;
	}

	.hero-container {
		flex-direction: column;
		text-align: center;
	}

	.hero h1 {
		font-size: 42px;
	}

	.hero .cta-area {
		justify-content: center;
	}

	.image-wrapper {
		transform: none;
	}

	.content-with-img,
	.content-with-img.reverse {
		flex-direction: column;
		gap: 40px;
	}

	.section-label.left,
	.section-title.left {
		text-align: center;
	}

	.feature-grid,
	.problem-grid {
		grid-template-columns: 1fr;
	}

	.feature-card {
		min-height: auto;
	}
}

@media (max-width: 768px) {
	.container {
		padding: 0 18px;
	}

	section {
		padding: 64px 0;
	}

	.header {
		height: 66px;
	}

	.header.scrolled {
		height: 58px;
	}

	.logo {
		font-size: 21px;
	}

	.nav {
		display: none;
	}

	.hero.dark-mode {
		padding-top: 122px;
		padding-bottom: 70px;
	}

	.hero h1 {
		font-size: 34px;
	}

	.sub-copy {
		font-size: 16px;
		line-height: 1.85;
	}

	.cta-area {
		flex-direction: column;
		width: 100%;
	}

	.btn-main,
	.btn-sub,
	.btn-sub-ghost {
		width: 100%;
		padding: 16px 20px;
		font-size: 16px;
	}

	.section-title {
		font-size: 28px;
		margin-bottom: 34px;
	}

	.section-title.left {
		margin-bottom: 24px;
	}

	.lead-text {
		font-size: 16px;
		text-align: left;
	}

	.usecase-grid,
	.flow-grid,
	.proposal-grid {
		grid-template-columns: 1fr;
	}

	.trial-box {
		padding: 40px 22px;
		border-radius: 18px;
	}

	.problem-card,
	.feature-card,
	.flow-card,
	.proposal-card,
	.faq-item {
		padding: 28px 22px;
	}

	.compare-table th,
	.compare-table td {
		padding: 15px 16px;
		font-size: 15px;
	}

	.final-cta p {
		font-size: 16px;
		text-align: left;
	}

	.hero-note {
		text-align: center;
	}
}

@media (max-width: 420px) {
	.hero h1 {
		font-size: 31px;
	}

	.section-title {
		font-size: 25px;
	}

	.hero-badge {
		font-size: 13px;
	}

	.feature-num {
		font-size: 60px;
	}
}