/* Base tokens */
:root {
	--bg: #060811;
	--surface: #0c1020;
	--surface-alt: rgba(255, 255, 255, 0.04);
	--outline: rgba(255, 255, 255, 0.08);
	--text: #e9ecf7;
	--muted: #8f98ad;
	--primary: #7a5cff;
	--accent: #c45bff;
	--radius: 14px;
	--radius-lg: 20px;
	--shadow: 0 18px 60px rgba(10, 14, 35, 0.4);
}

*,
*::before,
*::after {
	box-sizing: border-box;
}

html,
body {
	height: 100%;
}

body {
	margin: 0;
	background:
		radial-gradient(1600px 800px at 50% -200px, rgba(122, 92, 255, 0.18), transparent 75%),
		radial-gradient(1400px 900px at 50% 120%, rgba(196, 91, 255, 0.12), transparent 70%),
		var(--bg);
	color: var(--text);
	font-family: "Inter", "Noto Sans JP", system-ui, -apple-system, sans-serif;
	line-height: 1.7;
	-webkit-font-smoothing: antialiased;
}

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

a {
	color: inherit;
	text-decoration: none;
}

.container {
	width: 100%;
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 20px;
}

.muted {
	color: var(--muted);
}

/* Header */
.site-header {
	position: sticky;
	top: 0;
	z-index: 100;
	backdrop-filter: saturate(140%) blur(12px);
	background: rgba(7, 9, 20, 0.7);
	border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 72px;
	gap: 16px;
}

.brand {
	display: inline-flex;
	align-items: center;
	gap: 12px;
	font-weight: 700;
	letter-spacing: 0.2px;
}

.brand-logo {
	width: 150px;
	height: auto;
}

.nav {
	display: none;
	align-items: center;
	gap: 24px;
	font-size: 14px;
	color: var(--muted);
}

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

.header-cta {
	display: none;
	gap: 12px;
}

/* Buttons */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	height: 42px;
	padding: 0 18px;
	border-radius: 999px;
	font-weight: 600;
	font-size: 14px;
	transition: transform 0.2s ease, box-shadow 0.2s ease;
	white-space: nowrap;
}

.btn-primary {
	color: #fff;
	background: linear-gradient(135deg, var(--primary), var(--accent));
	box-shadow: 0 14px 30px rgba(122, 92, 255, 0.35);
}

.btn-primary:hover {
	transform: translateY(-1px);
}

.btn-ghost {
	color: var(--text);
	background: rgba(255, 255, 255, 0.08);
	border: 1px solid rgba(255, 255, 255, 0.14);
}

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

/* Hero */
.hero {
	position: relative;
	padding: 80px 0 48px;
}

.hero-inner {
	display: grid;
	gap: 32px;
	align-items: center;
}

.eyebrow {
	display: inline-block;
	font-weight: 600;
	letter-spacing: 0.4px;
	color: var(--muted);
	text-transform: uppercase;
	font-size: 13px;
}

.hero h1 {
	margin: 12px 0 10px;
	font-size: clamp(40px, 6vw, 72px);
	line-height: 1.1;
}

.hero-logo {
	margin: 12px 0 10px;
	line-height: 0;
}

.hero-logo img {
	width: clamp(220px, 45vw, 380px);
	height: auto;
	display: block;
}

.hero-tagline {
	margin: 0 0 12px;
	font-size: clamp(18px, 3vw, 24px);
	font-weight: 600;
	color: rgba(233, 236, 247, 0.9);
}

.hero .sub {
	color: var(--muted);
	margin: 0 0 28px;
	max-width: 520px;
}

.hero-cta {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
}

.hero-note {
	margin-top: 18px;
	color: var(--muted);
	font-size: 13px;
}

.hero-media {
	background:
		radial-gradient(600px 340px at 70% 0%, rgba(196, 91, 255, 0.22), transparent 65%),
		linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.03));
	border: 1px solid rgba(255, 255, 255, 0.08);
	border-radius: var(--radius-lg);
	box-shadow: var(--shadow);
	padding: 18px;
}

.hero-glow {
	position: absolute;
	inset: -120px 0 auto 0;
	height: 260px;
	background: radial-gradient(70% 130% at 50% 0%, rgba(122, 92, 255, 0.2), transparent 70%);
	pointer-events: none;
}

/* Sections */
.section {
	padding: 80px 0;
}

.section-surface {
	background: rgba(10, 14, 30, 0.45);
	backdrop-filter: blur(18px);
}

.section-contrast {
	background:
		radial-gradient(900px 500px at 50% 0%, rgba(122, 92, 255, 0.12), transparent 70%),
		rgba(8, 10, 22, 0.85);
}

.section-header {
	text-align: center;
	margin-bottom: 40px;
}

.section-eyebrow {
	margin: 0 0 12px;
	font-size: 13px;
	letter-spacing: 0.4px;
	text-transform: uppercase;
	color: var(--muted);
}

.section-header h2 {
	margin: 0 0 12px;
	font-size: clamp(28px, 4vw, 42px);
	line-height: 1.3;
}

.section-description {
	margin: 0 auto;
	max-width: 800px;
	color: rgba(233, 236, 247, 0.8);
}

.overview-layout {
	display: flex;
	flex-direction: column;
	gap: 24px;
	margin-top: 40px;
}

.overview-center {
	display: flex;
	flex-direction: column;
	gap: 24px;
}

.info-list {
	margin: 0;
	padding: 0;
	list-style: none;
	display: flex;
	flex-direction: column;
	gap: 10px;
	color: rgba(233, 236, 247, 0.85);
	font-size: 14px;
}

.info-list li {
	display: flex;
	gap: 8px;
	align-items: flex-start;
}

.info-list-dot li::before {
	content: "•";
	color: var(--primary);
	margin-right: 8px;
}

.info-list-number {
	counter-reset: steps;
	padding-top: 12px;
	gap: 8px;
}

.info-list-number li {
	counter-increment: steps;
	display: flex;
	align-items: center;
	gap: 10px;
}

.info-list-number li::before {
	content: counter(steps);
	width: 26px;
	height: 26px;
	border-radius: 999px;
	background: linear-gradient(135deg, var(--primary), var(--accent));
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-size: 12px;
	color: #fff;
	box-shadow: 0 8px 18px rgba(122, 92, 255, 0.35);
}

.gradient-panel {
	padding: 32px;
	border-radius: calc(var(--radius-lg) + 6px);
	background: linear-gradient(135deg, rgba(122, 92, 255, 0.75), rgba(196, 91, 255, 0.6));
	border: 1px solid rgba(255, 255, 255, 0.15);
	box-shadow: 0 30px 70px rgba(104, 73, 255, 0.35);
}

.capability-label {
	text-align: center;
	font-size: 20px;
	letter-spacing: 1px;
	color: rgba(255, 255, 255, 0.85);
	text-transform: uppercase;
	margin: 0 0 18px;
}

.capability-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
	gap: 16px;
}

.capability-item {
	padding: 18px 12px;
	border-radius: var(--radius);
	background: rgba(255, 255, 255, 0.12);
	text-align: center;
	color: #fff;
	box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
	position: relative;
	overflow: hidden;
}

.capability-item span {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 42px;
	height: 42px;
	border-radius: 12px;
	background: rgba(255, 255, 255, 0.15);
	font-size: 20px;
	margin-bottom: 8px;
}

.capability-item p {
	margin: 0;
	font-size: 14px;
	letter-spacing: 0.3px;
}

.capability-item.featured {
	background: radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.35), rgba(106, 211, 255, 0.5))
		, rgba(255, 255, 255, 0.18);
	border: 1px solid rgba(255, 255, 255, 0.4);
	box-shadow: 0 18px 40px rgba(82, 214, 255, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.capability-item.featured span {
	background: linear-gradient(135deg, rgba(255, 255, 255, 0.85), rgba(122, 92, 255, 0.7));
	color: rgba(15, 18, 32, 0.8);
}

.capability-item.featured::after {
	content: "featured!";
	position: absolute;
	top: 12px;
	right: 14px;
	font-size: 10px;
	letter-spacing: 1px;
	color: rgba(15, 18, 32, 0.6);
	background: rgba(255, 255, 255, 0.7);
	padding: 2px 8px;
	border-radius: 999px;
}

.core-block {
	border-radius: var(--radius-lg);
	border: 1px solid rgba(102, 255, 210, 0.35);
	background: linear-gradient(180deg, rgba(14, 20, 33, 0.95), rgba(8, 11, 22, 0.92));
	box-shadow: 0 30px 60px rgba(52, 255, 210, 0.15);
	padding: 26px 30px 22px;
	display: flex;
	flex-direction: column;
	gap: 14px;
}

.core-heading h3 {
	margin: 0;
	font-size: 20px;
	color: #eafffb;
}

.core-heading p {
	margin: 6px 0 0;
	color: rgba(233, 254, 255, 0.7);
	font-size: 14px;
}

.core-list {
	gap: 8px;
}

.core-highlight-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
	gap: 14px;
}

.core-highlight {
	border-radius: var(--radius-lg);
	border: 1px solid rgba(255, 255, 255, 0.12);
	background: rgba(255, 255, 255, 0.04);
	padding: 16px;
	display: flex;
	align-items: center;
	gap: 14px;
	box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.core-number {
	width: 42px;
	height: 42px;
	border-radius: 12px;
	background: linear-gradient(135deg, #9effd9, #60a4ff);
	color: #040612;
	font-weight: 700;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-size: 16px;
	box-shadow: 0 12px 24px rgba(62, 181, 255, 0.4);
}

.section-note {
	margin-top: 28px;
	text-align: center;
	color: var(--muted);
	font-size: 13px;
}

/* Panels & cards */
.panel,
.card {
	background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
	border: 1px solid var(--outline);
	border-radius: var(--radius);
	padding: 28px;
	box-shadow: var(--shadow);
}

.panel-highlight {
	background:
		linear-gradient(165deg, rgba(122, 92, 255, 0.32), rgba(196, 91, 255, 0.14));
	border: 1px solid rgba(150, 120, 255, 0.6);
	box-shadow: 0 24px 60px rgba(122, 92, 255, 0.25);
}

.panel-header {
	margin-bottom: 18px;
}

.panel-header.inline {
	display: flex;
	align-items: center;
	gap: 12px;
	margin-bottom: 20px;
}

.panel h3,
.card h3 {
	margin: 0 0 12px;
	font-size: 20px;
	line-height: 1.3;
}

.panel p,
.card p {
	margin: 0;
	color: rgba(233, 236, 247, 0.78);
	font-size: 15px;
}

.panel-subtitle {
	margin: 24px 0 12px;
	font-weight: 600;
	color: rgba(255, 255, 255, 0.85);
	letter-spacing: 0.2px;
}

.list-dot,
.list-number {
	margin: 0;
	padding: 0;
	list-style: none;
	display: grid;
	gap: 10px;
}

.list-dot li {
	position: relative;
	padding-left: 18px;
}

.list-dot li::before {
	content: "•";
	position: absolute;
	left: 0;
	color: var(--accent);
}

.list-number {
	counter-reset: item;
}

.list-number li {
	counter-increment: item;
	position: relative;
	padding-left: 26px;
}

.list-number li::before {
	content: counter(item);
	position: absolute;
	left: 0;
	top: 0;
	width: 20px;
	height: 20px;
	border-radius: 50%;
	background: rgba(122, 92, 255, 0.16);
	color: var(--primary);
	font-size: 12px;
	display: grid;
	place-items: center;
	font-weight: 600;
}

.icon-grid {
	display: grid;
	gap: 16px;
	padding: 0;
	margin: 0;
	list-style: none;
}

.icon-grid li {
	display: grid;
	justify-items: center;
	gap: 6px;
	font-size: 13px;
	color: rgba(233, 236, 247, 0.8);
}

.icon-grid .icon {
	font-size: 20px;
}

.icon-grid-5 {
	grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
}

.icon-grid-3 {
	grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
}

.contact-flow {
	margin: 28px 0;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	border: 1px solid rgba(255, 255, 255, 0.08);
	border-radius: 999px;
	padding: 12px 20px;
	background: rgba(6, 9, 20, 0.45);
}

.flow-node {
	display: grid;
	justify-items: center;
	gap: 6px;
	font-size: 12px;
	text-transform: uppercase;
	letter-spacing: 0.5px;
	color: rgba(233, 236, 247, 0.85);
}

.flow-node .emoji {
	font-size: 20px;
}

.flow-line {
	flex: 1;
	height: 1px;
	background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
}

.flow-arrow {
	color: rgba(233, 236, 247, 0.7);
	font-size: 18px;
}

/* Grids */
.grid {
	display: grid;
	gap: 24px;
}

.grid-2 {
	grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.journey-grid .card,
.value-grid .panel,
.character-grid .panel,
.insight-grid .panel {
	min-height: 220px;
}

.journey-grid .icon,
.value-grid .icon,
.insight-grid .icon {
	font-size: 28px;
	display: inline-block;
	margin-bottom: 12px;
}

.implementation-card {
	display: flex;
	flex-direction: column;
	gap: 12px;
}

.implementation-frame {
	border-radius: var(--radius-lg);
	border: 1px solid rgba(255, 255, 255, 0.08);
	background: rgba(6, 9, 20, 0.6);
	padding: 16px;
	min-height: 180px;
	display: flex;
	align-items: center;
	justify-content: center;
}

.implementation-frame img {
	width: 100%;
	height: auto;
	display: block;
	border-radius: calc(var(--radius-lg) - 8px);
	box-shadow: 0 12px 24px rgba(0, 0, 0, 0.35);
}

.badge {
	display: inline-block;
	padding: 4px 12px;
	font-size: 12px;
	border-radius: 999px;
	background: rgba(122, 92, 255, 0.18);
	border: 1px solid rgba(122, 92, 255, 0.35);
	color: rgba(233, 236, 247, 0.85);
	margin-bottom: 16px;
}

.character-label {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	margin: 0 auto 24px;
	padding: 8px 20px;
	border-radius: 999px;
	font-size: 14px;
	background: rgba(255, 255, 255, 0.04);
	border: 1px solid rgba(255, 255, 255, 0.08);
	color: rgba(233, 236, 247, 0.85);
}

/* Comparison */
.comparison {
	display: grid;
	gap: 24px;
	align-items: stretch;
}

.comparison-column {
	border-radius: var(--radius);
	padding: 32px;
	border: 1px solid rgba(255, 255, 255, 0.08);
	background: rgba(8, 11, 24, 0.7);
	box-shadow: var(--shadow);
}

.comparison-column h3 {
	display: flex;
	flex-direction: column;
	gap: 6px;
	font-size: 22px;
}

.comparison-column h3 span {
	font-size: 15px;
	color: var(--muted);
	font-weight: 500;
}

.comparison-icon {
	width: 56px;
	height: 56px;
	border-radius: 14px;
	background: rgba(255, 255, 255, 0.08);
	display: grid;
	place-items: center;
	font-size: 24px;
	margin-bottom: 18px;
}

.comparison-separator {
	justify-self: center;
	align-self: center;
	font-size: 16px;
	letter-spacing: 8px;
	color: rgba(233, 236, 247, 0.6);
}

.comparison-highlight {
	background: linear-gradient(180deg, rgba(122, 92, 255, 0.28), rgba(196, 91, 255, 0.18));
	border: 1px solid rgba(122, 92, 255, 0.5);
}

/* Architecture */
.architecture-grid {
	display: grid;
	gap: 24px;
}

.architecture-core {
	display: flex;
	flex-direction: column;
	gap: 20px;
}

.architecture-flow {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 18px;
}

.panel-note {
	color: var(--muted);
	font-size: 14px;
	margin: 0;
}

.architecture-modules {
	padding: 32px;
}

.module-grid {
	display: grid;
	gap: 20px;
	grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.module {
	background: rgba(6, 9, 20, 0.55);
	border-radius: var(--radius);
	border: 1px solid rgba(255, 255, 255, 0.08);
	padding: 20px;
}

.module h3 {
	margin: 0 0 10px;
	font-size: 18px;
}

.module p {
	font-size: 15px;
	color: rgba(233, 236, 247, 0.8);
	margin: 0;
}

/* Security & FAQ */
.security-grid {
	display: grid;
	gap: 24px;
}

.faq-list {
	display: grid;
	gap: 16px;
}

.faq-list details {
	background: rgba(8, 11, 24, 0.7);
	border-radius: var(--radius);
	border: 1px solid rgba(255, 255, 255, 0.08);
	padding: 18px 22px;
	transition: border-color 0.2s ease, background 0.2s ease;
}

.faq-list summary {
	cursor: pointer;
	font-weight: 600;
	outline: none;
}

.faq-list details[open] {
	border-color: rgba(122, 92, 255, 0.4);
	background: rgba(122, 92, 255, 0.1);
}

.faq-list p {
	margin: 12px 0 0;
	color: rgba(233, 236, 247, 0.78);
}

/* CTA */
.final-cta {
	position: relative;
	padding: 100px 0;
}

.cta-surface {
	position: relative;
	z-index: 1;
	text-align: center;
	border-radius: 28px;
	border: 1px solid rgba(122, 92, 255, 0.4);
	background:
		linear-gradient(180deg, rgba(122, 92, 255, 0.18), rgba(196, 91, 255, 0.15)),
		rgba(8, 11, 24, 0.6);
	padding: 48px 32px;
	box-shadow: 0 24px 80px rgba(122, 92, 255, 0.3);
}

.cta-surface h2 {
	margin: 0 0 12px;
	font-size: clamp(30px, 4.5vw, 46px);
	line-height: 1.3;
}

.cta-surface p {
	margin: 0 auto 24px;
	max-width: 640px;
	color: rgba(233, 236, 247, 0.82);
}

.cta-note {
	margin-top: 24px;
	color: var(--muted);
	font-size: 13px;
}

.cta-glow {
	position: absolute;
	inset: auto 0 -120px 0;
	height: 260px;
	background: radial-gradient(70% 90% at 50% 100%, rgba(196, 91, 255, 0.22), transparent 70%);
	pointer-events: none;
}

/* Footer */
.site-footer {
	border-top: 1px solid rgba(255, 255, 255, 0.06);
	padding: 32px 0;
	background: rgba(6, 8, 18, 0.9);
}

.footer-inner {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 12px 24px;
}

.footer-left {
	display: inline-flex;
	align-items: center;
	gap: 12px;
}

.footer-logo {
	width: 140px;
	height: auto;
	opacity: 0.9;
}

.footer-nav {
	display: inline-flex;
	gap: 20px;
	font-size: 14px;
	color: var(--muted);
}

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

/* Responsive */
@media (min-width: 768px) {
	.nav {
		display: flex;
	}

	.header-cta {
		display: inline-flex;
	}

	.hero {
		padding: 120px 0 60px;
	}

	.hero-inner {
		grid-template-columns: 1.05fr 0.95fr;
		gap: 40px;
	}

	.comparison {
		grid-template-columns: 1fr auto 1fr;
		align-items: center;
	}

	.architecture-grid {
		grid-template-columns: 0.8fr 1.2fr;
	}

	.security-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 767px) {
	.contact-flow {
		flex-direction: column;
		padding: 18px;
		gap: 12px;
	}

	.flow-line,
	.flow-arrow {
		display: none;
	}

	.comparison-column {
		padding: 24px;
	}
}

@media (max-width: 479px) {
	.hero {
		padding: 72px 0 40px;
	}

	.cta-surface {
		padding: 36px 24px;
	}

	.footer-inner {
		flex-direction: column;
		align-items: flex-start;
	}
}