/*
 * Blanky Studio — 紹介ページ（/themes/blanky-studio）
 *
 * 2.5 に合わせて新しく書いた LP。作りは blanky-nordic.css と同じで、クラス名は lp-、効くのは .lp の中だけ。
 *
 * - ヘッダー・フッター・スキップリンク・言語切替はサイトのものを使うので持たない
 * - 書体は Web フォントを読み込まず、システムの書体にした
 * - 配色はテーマと同じモノクロ。地は明るく（#FAFAF9）、ヒーローと価格の帯だけテーマの Contact と同じ黒（#111111）
 *   - 本文の灰 #4A4A48：#FAFAF9 で 8.50:1、#F2F1EE で 7.86:1
 *   - ラベル・番号の灰 #6B6A66：#FAFAF9 で 5.18:1（surface の上では #5F5E5B、5.74:1）
 *   - 黒の帯の上の薄い文字 #BDBCB6：9.92:1
 * - 12px 未満の文字は使わない
 * - 和文の見出しは斜体にしない（和文にイタリック体は無く、ブラウザが字を傾けた偽物を描くため）
 * - 動きは CSS だけで、JS は使わない。prefers-reduced-motion のときは止める
 *
 * public/ に置いて直接読み込むので、npm run build は要らない。
 */

/* --- tokens ------------------------------------------------------------- */

.lp {
	--bg: #fafaf9;
	--surface: #f2f1ee;
	--ink: #111111;
	--text: #4a4a48;
	--quiet: #6b6a66;
	--quiet-on-surface: #5f5e5b;
	--line: #e2e1dd;
	--dark: #111111;
	--on-dark: #f5f4f0;
	--on-dark-soft: #bdbcb6;
	--on-dark-line: rgb(245 244 240 / 0.22);

	--font-serif: Georgia, "Times New Roman", "Hiragino Mincho ProN", "Yu Mincho", YuMincho, serif;
	--font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;

	--wrap: 1200px;
	--gutter: 2rem;
	--section: 7rem;

	/* サイトのヘッダー（h-16）の高さ。ページ内リンクで見出しが隠れないようにする */
	--site-header-h: 4rem;

	background: var(--bg);
	color: var(--ink);
	font-family: var(--font-sans);
	line-height: 1.7;
	-webkit-font-smoothing: antialiased;
}

/* --- base --------------------------------------------------------------- */

:where(.lp),
:where(.lp) *,
:where(.lp) *::before,
:where(.lp) *::after {
	box-sizing: border-box;
}

/* リセットは :where() で詳細度を 0 にする。.lp p（0-1-1）のままだと、クラスで付けた余白（0-1-0）を消してしまう */
:where(.lp) :where(h1, h2, h3, p, ul, ol, dl, dt, dd, figure) {
	margin: 0;
	padding: 0;
}

:where(.lp) :where(ul, ol) {
	list-style: none;
}

:where(.lp) img {
	display: block;
	max-width: 100%;
	height: auto;
}

:where(.lp) a {
	color: inherit;
	text-decoration: none;
}

.lp a:focus-visible,
.lp summary:focus-visible {
	outline: 3px solid var(--ink);
	outline-offset: 3px;
}

.lp-hero a:focus-visible,
.lp-pricing a:focus-visible {
	outline-color: var(--on-dark);
}

.lp [id] {
	scroll-margin-top: calc(var(--site-header-h) + 1rem);
}

.lp-wrap {
	width: 100%;
	max-width: var(--wrap);
	margin-inline: auto;
	padding-inline: var(--gutter);
}

/* 画面には出さず、読み上げだけで伝える文字 */
.lp-sr {
	position: absolute;
	width: 1px;
	height: 1px;
	margin: -1px;
	padding: 0;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

/* --- section commons ------------------------------------------------------ */

.lp-section {
	padding-block: var(--section);
}

.lp-section--surface {
	background: var(--surface);
	border-block: 1px solid var(--line);
}

.lp-label {
	display: flex;
	align-items: center;
	gap: 1rem;
	margin-bottom: 1.5rem;
	font-size: 0.75rem;
	letter-spacing: 0.3em;
	text-transform: uppercase;
	color: var(--quiet);
}

.lp-section--surface .lp-label {
	color: var(--quiet-on-surface);
}

.lp-label::before {
	content: "";
	display: block;
	width: 2rem;
	height: 1px;
	background: currentColor;
}

.lp-h2 {
	margin-bottom: 1.5rem;
	font-family: var(--font-serif);
	font-size: clamp(2.25rem, 5vw, 4rem);
	font-weight: 400;
	font-style: italic;
	line-height: 1.15;
	letter-spacing: -0.01em;
	color: var(--ink);
}

.lp-lead {
	max-inline-size: 36rem;
	font-size: 0.95rem;
	line-height: 1.9;
	color: var(--text);
}

.lp-lead strong {
	font-weight: 600;
	color: var(--ink);
}

/* --- buttons ------------------------------------------------------------ */

.lp-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.75rem;
	padding: 1.1rem 2.5rem;
	font-size: 0.75rem;
	font-weight: 600;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

/* 黒の帯の上でだけ使う */
.lp-btn--primary {
	background: var(--on-dark);
	color: var(--dark);
}

.lp-btn--primary:hover {
	background: #fff;
}

.lp-btn--ghost {
	border: 1px solid var(--on-dark-line);
	color: var(--on-dark);
}

.lp-btn--ghost:hover {
	border-color: var(--on-dark);
}

/* --- hero --------------------------------------------------------------- */

.lp-hero {
	background: var(--dark);
	color: var(--on-dark);
}

.lp-hero__inner {
	display: grid;
	grid-template-columns: 1fr 1.2fr;
	align-items: center;
	gap: 4rem;
	padding-block: 6rem;
}

.lp-hero__eyebrow {
	display: flex;
	align-items: center;
	gap: 1rem;
	margin-bottom: 2rem;
	font-size: 0.75rem;
	letter-spacing: 0.35em;
	text-transform: uppercase;
	color: var(--on-dark-soft);
}

.lp-hero__eyebrow::before {
	content: "";
	display: block;
	width: 3rem;
	height: 1px;
	background: currentColor;
}

.lp-hero__title {
	margin-bottom: 2rem;
	font-family: var(--font-serif);
	font-size: clamp(3.5rem, 8vw, 7rem);
	font-weight: 400;
	line-height: 0.95;
	letter-spacing: -0.03em;
	color: var(--on-dark);
}

.lp-hero__title span {
	font-style: italic;
	padding-left: 0.4em;
}

.lp-hero__desc {
	max-inline-size: 36rem;
	margin-bottom: 3rem;
	font-size: 1rem;
	line-height: 1.9;
	color: var(--on-dark-soft);
}

.lp-hero__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 1rem;
}

.lp-hero__visual {
	border: 1px solid var(--on-dark-line);
	box-shadow: 0 2rem 4rem rgb(0 0 0 / 0.45);
	background: #222;
	aspect-ratio: 4 / 3;
}

.lp-hero__visual img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

/* --- marquee ------------------------------------------------------------ */

.lp-marquee {
	overflow: hidden;
	padding-block: 1.25rem;
	background: var(--surface);
	border-bottom: 1px solid var(--line);
}

.lp-marquee__track {
	display: flex;
	gap: 3rem;
	width: max-content;
	white-space: nowrap;
	animation: lp-marquee 30s linear infinite;
}

.lp-marquee:hover .lp-marquee__track {
	animation-play-state: paused;
}

.lp-marquee__item {
	display: flex;
	flex-shrink: 0;
	align-items: center;
	gap: 1.5rem;
	font-size: 0.75rem;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--quiet-on-surface);
}

.lp-marquee__item::before {
	content: "";
	flex-shrink: 0;
	width: 4px;
	height: 4px;
	border-radius: 50%;
	background: var(--ink);
}

@keyframes lp-marquee {
	from {
		transform: translateX(0);
	}

	to {
		transform: translateX(-50%);
	}
}

/* --- for whom ----------------------------------------------------------- */

.lp-who {
	display: grid;
	grid-template-columns: 1fr 1fr;
	align-items: end;
	gap: 4rem;
}

.lp-who__body {
	display: grid;
	gap: 1.5rem;
}

/* --- features (front page) ---------------------------------------------- */

/* 罫線は各カードの右と下に引く。コンテナの背景と gap で描くと、行が埋まらないときに空きが塗られる */
.lp-features {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	margin-top: 4rem;
	border-top: 1px solid var(--line);
	border-left: 1px solid var(--line);
	background: var(--bg);
}

.lp-feature {
	padding: 2.5rem 2rem;
	border-right: 1px solid var(--line);
	border-bottom: 1px solid var(--line);
}

.lp-feature__num {
	margin-bottom: 1.75rem;
	padding-bottom: 1.25rem;
	border-bottom: 1px solid var(--ink);
	font-family: var(--font-serif);
	font-size: 2.5rem;
	font-style: italic;
	line-height: 1;
	color: var(--quiet);
}

.lp-feature__title {
	margin-bottom: 0.75rem;
	font-size: 0.95rem;
	font-weight: 600;
	letter-spacing: 0.08em;
	color: var(--ink);
}

.lp-feature__desc {
	font-size: 0.875rem;
	line-height: 1.85;
	color: var(--text);
}

/* --- heroes ------------------------------------------------------------- */

.lp-heroes {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 2rem;
	margin-top: 3.5rem;
}

.lp-heroes__title {
	margin-top: 1.25rem;
	font-family: var(--font-serif);
	font-size: 1.5rem;
	font-weight: 400;
	color: var(--ink);
}

.lp-heroes__desc {
	margin-top: 0.5rem;
	font-size: 0.875rem;
	line-height: 1.85;
	color: var(--text);
}

/* --- screenshots -------------------------------------------------------- */

.lp-shot {
	position: relative;
	overflow: hidden;
	background: #e8e7e3;
	border: 1px solid var(--line);
}

.lp-shot img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: top;
	transition: transform 0.8s ease;
}

/* 画面写真は幅1200 × 高さ900 で撮っているので、枠も同じ比率にする */
.lp-shot--frame {
	aspect-ratio: 4 / 3;
}

.lp-shots {
	display: grid;
	grid-template-columns: 2fr 1fr;
	grid-template-rows: auto auto;
	gap: 1rem;
	margin-top: 4rem;
}

.lp-shot--main {
	grid-row: span 2;
	height: 600px;
}

.lp-shot--sub {
	height: calc((600px - 1rem) / 2);
}

/* ページ全体の写真の上端はライトと同じヒーローなので、その下（About のあたり）を見せる */
.lp-shot--below-hero img {
	object-position: center 22%;
}

.lp-shot__label {
	position: absolute;
	top: 1.25rem;
	left: 1.25rem;
	padding: 0.4rem 0.8rem;
	background: var(--dark);
	font-size: 0.75rem;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--on-dark);
}

@media (hover: hover) {

	.lp-shot:hover img {
		transform: scale(1.03);
	}
}

.lp-mobile {
	display: grid;
	grid-template-columns: 220px 1fr;
	align-items: center;
	gap: 3rem;
	margin-top: 4rem;
}

.lp-shot--phone {
	aspect-ratio: 390 / 840;
	border-radius: 1.25rem;
	border: 6px solid var(--dark);
}

.lp-mobile__title {
	margin-bottom: 0.75rem;
	font-family: var(--font-serif);
	font-size: 1.5rem;
	font-weight: 400;
	color: var(--ink);
}

.lp-mobile__desc {
	max-inline-size: 30rem;
	font-size: 0.9rem;
	line-height: 1.9;
	color: var(--text);
}

/* --- how to ------------------------------------------------------------- */

.lp-howto {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 0 4rem;
	margin-top: 3.5rem;
}

.lp-howto__item {
	padding-block: 1.75rem;
	border-top: 1px solid var(--line);
}

.lp-howto__item dt {
	margin-bottom: 0.5rem;
	font-size: 0.95rem;
	font-weight: 600;
	letter-spacing: 0.08em;
	color: var(--ink);
}

.lp-howto__item dd {
	font-size: 0.875rem;
	line-height: 1.9;
	color: var(--text);
}

/* --- install ------------------------------------------------------------ */

.lp-steps {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 1rem;
	margin-top: 4rem;
}

.lp-step {
	padding: 3rem 2rem;
	border: 1px solid var(--line);
	background: var(--bg);
	transition: border-color 0.3s;
}

.lp-step:hover {
	border-color: var(--ink);
}

.lp-step__num {
	margin-bottom: 2rem;
	font-family: var(--font-serif);
	font-size: 4rem;
	font-style: italic;
	line-height: 1;
	color: var(--quiet);
}

.lp-step__title {
	margin-bottom: 0.75rem;
	font-size: 0.95rem;
	font-weight: 600;
	letter-spacing: 0.08em;
	color: var(--ink);
}

.lp-step__desc {
	font-size: 0.875rem;
	line-height: 1.85;
	color: var(--text);
}

.lp-step__desc strong {
	font-weight: 600;
	color: var(--ink);
}

/* --- pricing ------------------------------------------------------------ */

.lp-pricing {
	position: relative;
	overflow: hidden;
	padding-block: var(--section);
	background: var(--dark);
	color: var(--on-dark);
	text-align: center;
}

/* 背景の大きな飾り文字 */
.lp-pricing__mark {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	font-family: var(--font-serif);
	font-size: 20vw;
	font-style: italic;
	white-space: nowrap;
	color: rgb(245 244 240 / 0.05);
	pointer-events: none;
	user-select: none;
}

.lp-pricing__inner {
	position: relative;
	max-width: 640px;
}

.lp-pricing .lp-label {
	justify-content: center;
	color: var(--on-dark-soft);
}

.lp-pricing .lp-h2 {
	color: var(--on-dark);
}

.lp-price {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	justify-content: center;
	gap: 0.5rem 1.25rem;
	margin: 2rem 0 0.75rem;
}

.lp-price__amount {
	font-family: var(--font-serif);
	font-size: clamp(3rem, 8vw, 5.5rem);
	font-style: italic;
	line-height: 1;
	color: var(--on-dark);
}

.lp-price__regular {
	font-size: 1.125rem;
	color: var(--on-dark-soft);
}

.lp-price__badge {
	display: inline-block;
	margin-bottom: 0.5rem;
	padding: 0.3rem 0.9rem;
	border: 1px solid var(--on-dark);
	font-size: 0.75rem;
	letter-spacing: 0.2em;
	color: var(--on-dark);
}

.lp-price__note {
	margin-bottom: 2.5rem;
	font-size: 0.75rem;
	letter-spacing: 0.12em;
	color: var(--on-dark-soft);
}

.lp-pricing__list {
	display: flex;
	flex-direction: column;
	gap: 0.75rem;
	max-width: 340px;
	margin: 0 auto 3rem;
	text-align: left;
}

.lp-pricing__list li {
	display: flex;
	align-items: center;
	gap: 1rem;
	font-size: 0.875rem;
	color: var(--on-dark-soft);
}

.lp-pricing__list li::before {
	content: "";
	flex-shrink: 0;
	width: 1.5rem;
	height: 1px;
	background: var(--on-dark-soft);
}

.lp-pricing__actions {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 1rem;
}

/* --- faq ---------------------------------------------------------------- */

.lp-faq {
	max-width: 800px;
}

.lp-faq__list {
	margin-top: 4rem;
	border-bottom: 1px solid var(--line);
}

.lp-faq__item {
	border-top: 1px solid var(--line);
}

.lp-faq__item summary {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1.5rem;
	padding-block: 1.75rem;
	list-style: none;
	cursor: pointer;
	font-size: 0.95rem;
	font-weight: 600;
	color: var(--ink);
}

.lp-faq__item summary::-webkit-details-marker {
	display: none;
}

.lp-faq__item summary:hover {
	text-decoration: underline;
	text-underline-offset: 0.3em;
}

.lp-faq__item summary::after {
	content: "+";
	flex-shrink: 0;
	font-family: var(--font-serif);
	font-size: 1.5rem;
	font-weight: 400;
	line-height: 1;
	color: var(--ink);
	transition: transform 0.3s;
}

.lp-faq__item[open] summary::after {
	transform: rotate(45deg);
}

.lp-faq__item p {
	padding-bottom: 1.75rem;
	font-size: 0.875rem;
	line-height: 1.9;
	color: var(--text);
}

/* --- links --------------------------------------------------------------- */

.lp-links {
	padding-block: 4rem;
	background: var(--surface);
	border-top: 1px solid var(--line);
}

.lp-links__inner {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 1.5rem;
	text-align: center;
}

.lp-links__brand {
	font-family: var(--font-serif);
	font-size: 1.5rem;
	font-weight: 400;
	color: var(--ink);
}

.lp-links__brand span {
	font-style: italic;
}

.lp-links__list {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 0.75rem 2rem;
}

.lp-links__list a {
	font-size: 0.8125rem;
	letter-spacing: 0.12em;
	color: var(--text);
	text-decoration: underline;
	text-underline-offset: 0.3em;
	transition: color 0.2s;
}

.lp-links__list a:hover {
	color: var(--ink);
}

/* --- 和文 --------------------------------------------------------------- */

/* 和文の見出しは傾けない（テーマ本体の studio-ja.css と同じ考え方） */
.lp-h2:lang(ja) {
	font-style: normal;
	letter-spacing: 0.02em;
}

/* --- responsive --------------------------------------------------------- */

@media (width < 1080px) {

	.lp-features {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (width < 960px) {

	.lp-hero__inner,
	.lp-who {
		grid-template-columns: 1fr;
		gap: 3rem;
	}

	.lp-hero__inner {
		padding-block: 4rem;
	}

	.lp-heroes,
	.lp-steps,
	.lp-howto {
		grid-template-columns: 1fr;
	}

	.lp-heroes {
		gap: 3rem;
	}

	.lp-shots {
		grid-template-columns: 1fr;
	}

	.lp-shot--main {
		grid-row: auto;
		height: 360px;
	}

	.lp-shot--sub {
		height: 260px;
	}
}

@media (width < 640px) {

	.lp {
		--gutter: 1.25rem;
		--section: 5rem;
	}

	.lp-features {
		grid-template-columns: 1fr;
	}

	.lp-feature {
		padding: 2rem 1.5rem;
	}

	.lp-mobile {
		grid-template-columns: 1fr;
		justify-items: center;
		gap: 2rem;
	}

	.lp-shot--phone {
		width: 220px;
	}

	.lp-btn {
		width: 100%;
	}
}

@media (prefers-reduced-motion: reduce) {

	.lp-marquee__track {
		animation: none;
	}

	.lp *,
	.lp *::before,
	.lp *::after {
		transition-duration: 0.01ms !important;
	}

	.lp-shot:hover img {
		transform: none;
	}
}