@charset "utf-8";

/* ==========================================================================
   変数
   ========================================================================== */

:root {
	/* カラー(アクセントはロゴの配色) */
	--color-bg: #06070b;
	--color-text: #f4f6fb;
	--color-muted: #9ba3b7;
	--color-line: rgba(255, 255, 255, 0.1);
	--color-surface: rgba(255, 255, 255, 0.04);
	--color-cyan: #28d2ff;
	--color-green: #9bff8c;
	--color-violet: #a06eff;
	--color-purple: #8c19ff;
	--color-blue: #0078ff;
	--gradient: linear-gradient(100deg, var(--color-cyan) 0%, var(--color-violet) 55%, var(--color-green) 115%);

	/* サイズ */
	--size-content: 1120px;
	--size-gutter: 24px;
	--size-header: 76px;

	/* 動き */
	--ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* SP版のブレイクポイントは 900px(ナビの折りたたみ)と 640px(1カラム化) */

/* ==========================================================================
   共通
   ========================================================================== */

html {
	font-size: 16px;
	-webkit-text-size-adjust: 100%;
	-moz-osx-font-smoothing: grayscale;
	-webkit-font-smoothing: antialiased;
	scroll-behavior: smooth;
	scroll-padding-top: var(--size-header);
}

*,
*:before,
*:after {
	box-sizing: border-box;
	margin: 0;
}

body {
	background: var(--color-bg);
	font-family: sofia-pro, sans-serif;
	line-height: 1.8;
	color: var(--color-text);
}

h1,
h2,
h3 {
	font-weight: bold;
}

ul {
	padding: 0;
	list-style-type: none;
}

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

img {
	max-width: 100%;
	vertical-align: middle;
}

button {
	background-color: transparent;
	border: none;
	cursor: pointer;
	padding: 0;
	appearance: none;
}

/* ボタン */
.button {
	display: inline-flex;
	justify-content: center;
	align-items: center;
	gap: 10px;
	border: 1px solid transparent;
	border-radius: 999px;
	padding: 19px 32px;
	line-height: 1;
	font-size: 16px;
	font-weight: bold;
	letter-spacing: 0.02em;
	white-space: nowrap;
	transition: transform 0.3s var(--ease), box-shadow 0.3s, background 0.3s, border-color 0.3s;
}

.button--primary {
	background: var(--gradient);
	background-size: 170% 100%;
	color: var(--color-bg);
}

.button--primary:hover {
	background-position: 100% 0;
	box-shadow: 0 12px 40px -10px rgba(40, 210, 255, 0.6), 0 8px 32px -12px rgba(160, 110, 255, 0.7);
	transform: translateY(-2px);
}

.button--ghost {
	background: var(--color-surface);
	border-color: rgba(255, 255, 255, 0.22);
	backdrop-filter: blur(8px);
	-webkit-backdrop-filter: blur(8px);
}

.button--ghost:hover {
	background: rgba(255, 255, 255, 0.1);
	border-color: var(--color-text);
	transform: translateY(-2px);
}

.button--small {
	padding: 13px 20px;
	font-size: 14px;
}

.button__arrow {
	width: 14px;
	height: 14px;
	transition: transform 0.3s var(--ease);
}

.button:hover .button__arrow {
	transform: translate(2px, -2px);
}

/* バッジ */
.badge {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	border: 1px solid var(--color-line);
	border-radius: 999px;
	padding: 7px 12px;
	line-height: 1;
	font-size: 12px;
	font-weight: normal;
	letter-spacing: 0.04em;
	color: var(--color-muted);
}

.badge__dot {
	background: var(--color-green);
	border-radius: 50%;
	width: 6px;
	height: 6px;
	animation: pulse 1.8s ease-in-out infinite;
}

/* カーソルに追従して縁が光る面。--mx / --my は JS が設定する */
.glow {
	position: relative;
	background: linear-gradient(160deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
	border: 1px solid var(--color-line);
	backdrop-filter: blur(12px);
	-webkit-backdrop-filter: blur(12px);
}

.glow:before,
.glow:after {
	content: "";
	position: absolute;
	border-radius: inherit;
	opacity: 0;
	transition: opacity 0.4s;
	pointer-events: none;
}

.glow:before {
	inset: -1px;
	background: radial-gradient(260px circle at var(--mx, 50%) var(--my, 0%), var(--color-cyan), var(--color-violet) 45%, transparent 75%);
	padding: 1px;
	-webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
	-webkit-mask-composite: xor;
	mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
}

.glow:after {
	inset: 0;
	background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(40, 210, 255, 0.1), transparent 65%);
}

@media (hover: hover) {
	.glow:hover:before,
	.glow:hover:after {
		opacity: 1;
	}
}

/* スクロール時の出現。--d で遅延をずらす */
.js .reveal {
	opacity: 0;
	transform: translateY(32px) scale(0.985);
	transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
	transition-delay: var(--d, 0ms);
}

.js .reveal.is-visible {
	opacity: 1;
	transform: none;
}

/* ==========================================================================
   背景の光・進捗バー
   ========================================================================== */

.aurora {
	position: fixed;
	inset: 0;
	z-index: -1;
	background: var(--color-bg);
	overflow: hidden;
	pointer-events: none;
}

.aurora__orb {
	position: absolute;
	border-radius: 50%;
	filter: blur(90px);
	will-change: transform;
}

.aurora__orb--1 {
	top: -14%;
	left: -10%;
	background: var(--color-blue);
	width: max(46vw, 340px);
	height: max(46vw, 340px);
	opacity: 0.3;
	animation: drift-1 26s ease-in-out infinite alternate;
}

.aurora__orb--2 {
	top: 18%;
	right: -16%;
	background: var(--color-purple);
	width: max(42vw, 320px);
	height: max(42vw, 320px);
	opacity: 0.3;
	animation: drift-2 32s ease-in-out infinite alternate;
}

.aurora__orb--3 {
	bottom: -22%;
	left: 22%;
	background: var(--color-cyan);
	width: max(38vw, 300px);
	height: max(38vw, 300px);
	opacity: 0.16;
	animation: drift-3 38s ease-in-out infinite alternate;
}

.aurora__grid {
	position: absolute;
	inset: 0;
	background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
	background-size: 32px 32px;
	-webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 20%, transparent 75%);
	mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 20%, transparent 75%);
}

.progress {
	position: fixed;
	top: 0;
	left: 0;
	z-index: 101;
	background: var(--gradient);
	width: 100%;
	height: 2px;
	transform: scaleX(var(--progress, 0));
	transform-origin: 0 50%;
}

/* ==========================================================================
   ヘッダー
   ========================================================================== */

.header {
	position: fixed;
	top: 0;
	right: 0;
	left: 0;
	z-index: 100;
}

/* ぼかしをヘッダー本体に付けると、中の固定配置(SPのナビ)の基準がヘッダーになるため擬似要素に付ける */
.header:before {
	content: "";
	position: absolute;
	inset: 0;
	z-index: -1;
	background: rgba(6, 7, 11, 0.62);
	border-bottom: 1px solid var(--color-line);
	backdrop-filter: blur(16px) saturate(1.4);
	-webkit-backdrop-filter: blur(16px) saturate(1.4);
	opacity: 0;
	transition: opacity 0.4s;
}

.header.is-scrolled:before,
.header.is-open:before {
	opacity: 1;
}

.header__inner {
	display: flex;
	align-items: center;
	margin: 0 auto;
	padding: 0 var(--size-gutter);
	max-width: 1360px;
	height: var(--size-header);
}

.header__logo {
	flex-shrink: 0;
	margin-right: auto;
}

.header__logo img {
	width: auto;
	height: 32px;
}

.nav__list {
	display: flex;
	align-items: center;
	gap: 34px;
	margin-right: 34px;
}

.nav__link {
	position: relative;
	display: block;
	padding: 6px 0;
	line-height: 1;
	font-size: 15px;
	white-space: nowrap;
	color: var(--color-muted);
	transition: color 0.3s;
}

.nav__link:after {
	content: "";
	position: absolute;
	right: 0;
	bottom: -2px;
	left: 0;
	background: var(--gradient);
	height: 1px;
	transform: scaleX(0);
	transform-origin: 100% 50%;
	transition: transform 0.4s var(--ease);
}

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

.nav__link:hover:after {
	transform: scaleX(1);
	transform-origin: 0 50%;
}

.menu {
	display: none;
	position: relative;
	margin-left: 18px;
	width: 26px;
	height: 14px;
}

.menu span {
	position: absolute;
	left: 0;
	background-color: var(--color-text);
	width: 100%;
	height: 1.5px;
	transition: transform 0.4s var(--ease);
}

.menu span:nth-of-type(1) {
	top: 0;
}

.menu span:nth-of-type(2) {
	bottom: 0;
}

.menu.is-active span:nth-of-type(1) {
	transform: translateY(6px) rotate(-45deg);
}

.menu.is-active span:nth-of-type(2) {
	transform: translateY(-6px) rotate(45deg);
}

@media (max-width: 1100px) {
	.nav__list {
		gap: 22px;
		margin-right: 22px;
	}

	.nav__link {
		font-size: 14px;
	}
}

@media (max-width: 900px) {
	.header__cta {
		margin-left: auto;
	}

	.nav {
		position: fixed;
		top: var(--size-header);
		right: 0;
		bottom: 0;
		left: 0;
		background: rgba(6, 7, 11, 0.9);
		backdrop-filter: blur(20px);
		-webkit-backdrop-filter: blur(20px);
		opacity: 0;
		visibility: hidden;
		transition: opacity 0.4s, visibility 0.4s;
	}

	.nav.is-active {
		opacity: 1;
		visibility: visible;
	}

	.nav__list {
		flex-direction: column;
		justify-content: center;
		align-items: flex-start;
		gap: 28px;
		margin-right: 0;
		padding: 0 var(--size-gutter) 15vh;
		height: 100%;
	}

	.nav__list li {
		opacity: 0;
		transform: translateY(20px);
		transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
	}

	.nav.is-active .nav__list li {
		opacity: 1;
		transform: none;
		transition-delay: calc(var(--i) * 50ms + 100ms);
	}

	.nav__link {
		font-size: 30px;
		font-weight: bold;
		color: var(--color-text);
	}

	.menu {
		display: block;
	}
}

@media (max-width: 360px) {
	.header__logo img {
		height: 26px;
	}

	.button--small {
		padding: 11px 14px;
		font-size: 13px;
	}
}

/* ==========================================================================
   ヒーロー
   ========================================================================== */

.hero {
	position: relative;
	display: flex;
	align-items: center;
	min-height: 100vh;
	min-height: 100svh;
	overflow: hidden;
}

.hero__inner {
	display: grid;
	grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
	align-items: center;
	gap: 32px;
	margin: 0 auto;
	padding: calc(var(--size-header) + 40px) var(--size-gutter) 96px;
	width: 100%;
	max-width: calc(var(--size-content) + var(--size-gutter) * 2);
}

.hero__heading {
	margin-bottom: 32px;
	line-height: 1.04;
	font-size: clamp(44px, 7.2vw, 96px);
	letter-spacing: -0.01em;
}

/* 1行ずつ下からせり上がる。下方向の余白は y や J の欠け防止 */
.hero__line {
	display: block;
	margin-bottom: -0.14em;
	padding-bottom: 0.14em;
	overflow: hidden;
}

.hero__word {
	display: inline-block;
	transform: translateY(115%);
	animation: rise 1s var(--ease) forwards;
	animation-delay: calc(var(--i) * 110ms + 150ms);
}

.hero__word--accent {
	background: var(--gradient);
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
}

.hero__description {
	max-width: 560px;
	font-size: 17px;
	color: #c3c9d8;
	opacity: 0;
	animation: fade-up 1s var(--ease) 0.65s forwards;
}

.hero__description p + p {
	margin-top: 0.8em;
}

.hero__buttons {
	display: flex;
	flex-wrap: wrap;
	gap: 16px;
	margin-top: 40px;
	opacity: 0;
	animation: fade-up 1s var(--ease) 0.85s forwards;
}

.hero__visual {
	position: relative;
	margin-right: -6%;
	animation: float 7s ease-in-out infinite alternate;
}

/* リングの背後の光 */
.hero__visual:before {
	content: "";
	position: absolute;
	inset: 16%;
	background: conic-gradient(var(--color-cyan), var(--color-violet), var(--color-green), var(--color-blue), var(--color-cyan));
	border-radius: 50%;
	filter: blur(70px);
	opacity: 0.38;
	animation: spin 18s linear infinite;
}

.ring {
	position: relative;
	display: block;
	width: 100%;
	height: auto;
	overflow: visible;
	transform: translate3d(calc(var(--px, 0) * 18px), calc(var(--py, 0) * 18px), 0);
	transition: transform 0.8s var(--ease);
}

.ring__orbit {
	fill: none;
	stroke: rgba(160, 110, 255, 0.28);
	stroke-width: 0.6;
}

.ring__orbit--outer {
	stroke: rgba(40, 210, 255, 0.22);
}

.ring__satellite--1 {
	animation: spin 16s linear infinite;
}

.ring__satellite--2 {
	animation: spin 24s linear infinite reverse;
}

.ring__satellite--3 {
	animation: spin 34s linear infinite;
}

.ring__body {
	animation: spin 70s linear infinite;
}

.ring__arc {
	fill: none;
	stroke-width: 32;
	stroke-linecap: round;
	stroke-dasharray: 100 100;
	stroke-dashoffset: 100;
	opacity: 0;
	animation: draw 0.55s var(--ease) forwards;
	animation-delay: calc(var(--i) * 0.17s + 0.4s);
}

.ring__dot {
	transform: scale(0);
	transform-box: fill-box;
	transform-origin: center;
	animation: pop 0.6s cubic-bezier(0.3, 1.6, 0.5, 1) forwards;
	animation-delay: calc(var(--i) * 0.17s + 0.5s);
}

/* スクロールを促す線 */
.hero__cue {
	position: absolute;
	bottom: 0;
	left: 50%;
	background: var(--color-line);
	width: 1px;
	height: 64px;
	overflow: hidden;
}

.hero__cue:after {
	content: "";
	position: absolute;
	top: 0;
	left: 0;
	background: linear-gradient(transparent, var(--color-cyan));
	width: 100%;
	height: 50%;
	animation: cue 2.2s var(--ease) infinite;
}

@media (max-width: 900px) {
	.hero__inner {
		grid-template-columns: minmax(0, 1fr);
		padding-top: calc(var(--size-header) + 32px);
		padding-bottom: 80px;
	}

	.hero__description {
		max-width: none;
	}

	.hero__visual {
		margin: 0 auto;
		width: 100%;
		max-width: 400px;
	}
}

@media (max-width: 640px) {
	.hero__description {
		font-size: 15px;
	}

	.hero__buttons {
		flex-direction: column;
		margin-top: 32px;
	}
}

/* ==========================================================================
   セクション共通
   ========================================================================== */

.section {
	padding: 140px 0;
}

.section__inner {
	margin: 0 auto;
	padding: 0 var(--size-gutter);
	max-width: calc(var(--size-content) + var(--size-gutter) * 2);
}

.section__heading {
	margin-bottom: 64px;
	line-height: 1.1;
	font-size: clamp(34px, 5.6vw, 64px);
	letter-spacing: 0.01em;
}

/* 見出し下の線。表示されたときに伸びる */
.section__heading:after {
	content: "";
	display: block;
	background: var(--gradient);
	border-radius: 3px;
	margin-top: 22px;
	width: 72px;
	height: 3px;
	transform-origin: 0 50%;
	transition: transform 0.9s var(--ease) 0.35s;
}

.js .section__heading:after {
	transform: scaleX(0);
}

.js .section__heading.is-visible:after {
	transform: scaleX(1);
}

@media (max-width: 900px) {
	.section {
		padding: 96px 0;
	}

	.section__heading {
		margin-bottom: 44px;
	}
}

/* ==========================================================================
   Get Started
   ========================================================================== */

.start {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 24px;
}

.card {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	border-radius: 24px;
	padding: 48px;
}

.card__title {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 10px 14px;
	margin-bottom: 18px;
	line-height: 1.3;
	font-size: 30px;
	letter-spacing: 0.01em;
}

.card__lead {
	background: var(--gradient);
	-webkit-background-clip: text;
	background-clip: text;
	margin-bottom: 10px;
	line-height: 1.5;
	font-size: 20px;
	font-weight: bold;
	color: transparent;
}

.card__text {
	margin-bottom: 40px;
	font-size: 16px;
	color: var(--color-muted);
}

.card__text:last-child {
	margin-bottom: 0;
}

.card__button {
	margin-top: auto;
}

@media (max-width: 900px) {
	.start {
		grid-template-columns: minmax(0, 1fr);
	}

	.card {
		border-radius: 20px;
		padding: 32px 28px 36px;
	}

	.card__title {
		font-size: 24px;
	}

	.card__lead {
		font-size: 18px;
	}

	.card__text {
		margin-bottom: 32px;
		font-size: 15px;
	}
}

@media (max-width: 640px) {
	.card__button {
		width: 100%;
	}
}

/* ==========================================================================
   Details
   ========================================================================== */

.spec {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 16px;
}

.spec__tile {
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	gap: 28px;
	border-radius: 20px;
	padding: 26px 28px;
	min-height: 140px;
}

/* 主役のタイル(Token Name) */
.spec__tile--hero {
	grid-column: 1 / -1;
	padding: 36px 40px;
	min-height: 200px;
}

.spec__tile--full {
	grid-column: 1 / -1;
	min-height: 0;
}

.spec__label {
	line-height: 1.4;
	font-size: 12px;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--color-muted);
}

.spec__value {
	line-height: 1.3;
	font-size: 24px;
	font-weight: bold;
	letter-spacing: 0.01em;
}

.spec__tile--hero .spec__value {
	align-self: flex-start;
	background: var(--gradient);
	-webkit-background-clip: text;
	background-clip: text;
	line-height: 1.1;
	font-size: clamp(44px, 7vw, 80px);
	color: transparent;
}

.spec__note {
	font-size: 14px;
	font-weight: normal;
	white-space: nowrap;
	color: var(--color-muted);
}

.spec__address {
	font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	font-size: clamp(13px, 2vw, 22px);
	font-weight: normal;
	letter-spacing: 0.02em;
	overflow-wrap: anywhere;
}

@media (max-width: 900px) {
	.spec {
		gap: 12px;
	}

	.spec__tile {
		gap: 20px;
		padding: 22px;
		min-height: 120px;
	}

	.spec__tile--hero {
		padding: 28px 22px;
		min-height: 140px;
	}

	.spec__value {
		font-size: 20px;
	}
}

@media (max-width: 640px) {
	.spec {
		grid-template-columns: minmax(0, 1fr);
	}

	/* 1列のときは、ラベルと値を横に並べる */
	.spec__tile:not(.spec__tile--hero):not(.spec__tile--full) {
		flex-direction: row;
		flex-wrap: wrap;
		align-items: baseline;
		gap: 6px 16px;
		padding: 18px 22px;
		min-height: 0;
	}

	.spec__tile:not(.spec__tile--hero):not(.spec__tile--full) .spec__value {
		margin-left: auto;
		text-align: right;
	}

	.spec__note {
		display: block;
	}
}

/* ==========================================================================
   Whitepaper
   ========================================================================== */

.paper {
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 24px;
	border-radius: 24px;
	padding: 44px 48px;
}

.paper__title {
	display: block;
	line-height: 1.3;
	font-size: clamp(24px, 3.4vw, 36px);
	font-weight: bold;
	letter-spacing: 0.01em;
}

.paper__detail {
	display: block;
	margin-top: 6px;
	font-size: 16px;
	color: var(--color-muted);
}

.paper__arrow {
	display: flex;
	flex-shrink: 0;
	justify-content: center;
	align-items: center;
	border: 1px solid rgba(255, 255, 255, 0.22);
	border-radius: 50%;
	width: 64px;
	height: 64px;
	transition: background 0.4s, border-color 0.4s, color 0.4s, transform 0.4s var(--ease);
}

.paper__arrow svg {
	width: 24px;
	height: 24px;
}

.paper:hover .paper__arrow {
	background: var(--color-text);
	border-color: var(--color-text);
	color: var(--color-bg);
	transform: translateX(6px);
}

@media (max-width: 640px) {
	.paper {
		border-radius: 20px;
		padding: 28px;
	}

	.paper__detail {
		font-size: 14px;
	}

	.paper__arrow {
		width: 48px;
		height: 48px;
	}

	.paper__arrow svg {
		width: 20px;
		height: 20px;
	}
}

/* ==========================================================================
   Get Involved
   ========================================================================== */

.social {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 16px;
}

.social__link {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 18px;
	border-radius: 20px;
	padding: 44px 12px 36px;
	height: 100%;
	transition: transform 0.4s var(--ease);
}

.social__link:hover {
	transform: translateY(-6px);
}

.social__icon {
	filter: invert(100%);
	width: 44px;
	height: 44px;
	transition: transform 0.4s var(--ease);
}

.social__link:hover .social__icon {
	transform: scale(1.12);
}

.social__label {
	text-align: center;
	line-height: 1.4;
	font-size: 16px;
	font-weight: bold;
	letter-spacing: 0.02em;
}

@media (max-width: 900px) {
	.social {
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 12px;
	}
}

@media (max-width: 640px) {
	.social__link {
		padding: 32px 8px 26px;
	}

	.social__label {
		font-size: 14px;
	}
}

/* ==========================================================================
   Company
   ========================================================================== */

.company {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
	align-items: start;
	gap: 64px;
}

.company__description {
	font-size: 16px;
	line-height: 2;
	color: #c3c9d8;
}

.company__description p + p {
	margin-top: 1.6em;
}

.company__info {
	border-radius: 24px;
	padding: 16px 36px;
}

.company__row {
	display: grid;
	grid-template-columns: 130px minmax(0, 1fr);
	gap: 16px;
	border-bottom: 1px solid var(--color-line);
	padding: 18px 0;
}

.company__row:last-child {
	border-bottom: none;
}

.company__row dt {
	font-size: 13px;
	letter-spacing: 0.04em;
	line-height: 2;
	color: var(--color-muted);
}

.company__row dd {
	font-size: 15px;
	overflow-wrap: anywhere;
}

@media (max-width: 900px) {
	.company {
		grid-template-columns: minmax(0, 1fr);
		gap: 48px;
	}
}

@media (max-width: 640px) {
	.company__description {
		font-size: 15px;
	}

	.company__info {
		border-radius: 20px;
		padding: 8px 24px;
	}

	.company__row {
		grid-template-columns: minmax(0, 1fr);
		gap: 0;
		padding: 14px 0;
	}
}

/* ==========================================================================
   フッター
   ========================================================================== */

.footer {
	border-top: 1px solid var(--color-line);
	padding: 80px 0 36px;
	text-align: center;
	color: var(--color-muted);
}

.footer__inner {
	margin: 0 auto;
	padding: 0 var(--size-gutter);
	max-width: calc(var(--size-content) + var(--size-gutter) * 2);
}

.footer__logo {
	margin-bottom: 36px;
	width: 140px;
}

.footer__nav {
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	gap: 8px 36px;
	margin-bottom: 40px;
}

.footer__nav a {
	font-size: 15px;
	transition: color 0.3s;
}

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

.footer__disclaimer {
	margin: 0 auto 28px;
	max-width: 860px;
	font-size: 12px;
	letter-spacing: 0.02em;
	color: #6f7689;
}

.footer__copyright {
	font-size: 13px;
	letter-spacing: 0.04em;
}

@media (max-width: 640px) {
	.footer__nav {
		gap: 4px 24px;
	}

	.footer__nav a {
		font-size: 13px;
	}

	.footer__disclaimer {
		text-align: left;
		font-size: 11px;
	}
}

/* ==========================================================================
   404 ページ(404.html)
   ========================================================================== */

.notfound {
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	padding: calc(var(--size-header) + 40px) var(--size-gutter) 80px;
	min-height: 100vh;
	min-height: 100svh;
	text-align: center;
}

.notfound__code {
	background: var(--gradient);
	-webkit-background-clip: text;
	background-clip: text;
	line-height: 1;
	font-size: clamp(96px, 22vw, 200px);
	font-weight: bold;
	letter-spacing: -0.02em;
	color: transparent;
}

.notfound__heading {
	margin-top: 16px;
	line-height: 1.2;
	font-size: clamp(26px, 4vw, 40px);
}

.notfound__text {
	margin: 16px 0 40px;
	max-width: 480px;
	font-size: 16px;
	color: var(--color-muted);
}

/* ==========================================================================
   アニメーション
   ========================================================================== */

@keyframes rise {
	to {
		transform: none;
	}
}

@keyframes fade-up {
	from {
		opacity: 0;
		transform: translateY(24px);
	}

	to {
		opacity: 1;
		transform: none;
	}
}

@keyframes draw {
	from {
		stroke-dashoffset: 100;
		opacity: 1;
	}

	to {
		stroke-dashoffset: 0;
		opacity: 1;
	}
}

@keyframes pop {
	to {
		transform: scale(1);
	}
}

@keyframes spin {
	to {
		transform: rotate(360deg);
	}
}

@keyframes float {
	from {
		transform: translateY(-10px);
	}

	to {
		transform: translateY(10px);
	}
}

@keyframes pulse {
	50% {
		opacity: 0.3;
		transform: scale(0.7);
	}
}

@keyframes cue {
	from {
		transform: translateY(-100%);
	}

	to {
		transform: translateY(200%);
	}
}

@keyframes drift-1 {
	to {
		transform: translate(14vw, 10vh) scale(1.15);
	}
}

@keyframes drift-2 {
	to {
		transform: translate(-16vw, 14vh) scale(0.9);
	}
}

@keyframes drift-3 {
	to {
		transform: translate(10vw, -16vh) scale(1.2);
	}
}

/* 「動きを減らす」設定の端末では動きを止め、完成状態で表示する */
@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}

	*,
	*:before,
	*:after {
		animation: none !important;
		transition: none !important;
	}

	.hero__word,
	.ring__dot,
	.js .reveal {
		transform: none;
	}

	.hero__description,
	.hero__buttons,
	.ring__arc,
	.js .reveal {
		opacity: 1;
	}

	.ring__arc {
		stroke-dashoffset: 0;
	}

	.js .section__heading:after {
		transform: none;
	}
}