/* ============================================================================
 * Kotaro Studio 「空音開発プロジェクト」紹介ページ — External Stylesheet
 * パス: coldbox-child/css/kuon-project.css
 *
 * 構造: #ks-kuon (root scope)
 *   ├─ Hero (eyebrow + 題字 + 看板コピー + CTA ×2)
 *   ├─ Stats (数字 4 枚グリッド)
 *   ├─ Story (なぜ作ったか)
 *   ├─ Apps (カード ×6 + 料金一文)
 *   ├─ Mic (在庫限定告知・クリーム地)
 *   └─ Final CTA (黒地)
 *
 * ブランド: 黒 + 金 #c5a059 + 明朝 (LP・ガイド類と完全統一)
 * ============================================================================ */

#ks-kuon {
	--ks-ink: #111;
	--ks-text: #333;
	--ks-muted: #666;
	--ks-gold: #c5a059;
	--ks-gold-deep: #b89b5e;
	--ks-gold-bg: rgba(197, 160, 89, 0.08);
	--ks-gold-line: rgba(197, 160, 89, 0.35);
	--ks-bg: #ffffff;
	--ks-bg-alt: #fafafa;
	--ks-bg-cream: #fdfbf3;
	--ks-line: #e6e6e6;

	display: block;
	width: 100%;
	background: var(--ks-bg);
	color: var(--ks-text);
	font-family: "Hiragino Kaku Gothic ProN", "Helvetica Neue", "Yu Gothic", Arial, sans-serif;
	font-size: 16px;
	line-height: 1.95;
	letter-spacing: 0.03em;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	box-sizing: border-box;
	font-feature-settings: "palt";
}
#ks-kuon *, #ks-kuon *::before, #ks-kuon *::after { box-sizing: border-box; }

#ks-kuon .ks-sp-only { display: none; }
@media (max-width: 600px) {
	#ks-kuon .ks-sp-only { display: inline; }
}

/* ================================================================
   ボタン共通
================================================================ */
#ks-kuon .ks-kuon-btn {
	display: inline-block;
	padding: 16px 36px;
	border-radius: 4px;
	font-size: 16px;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-decoration: none;
	line-height: 1.5;
	transition: opacity 0.25s ease, transform 0.25s ease;
}
#ks-kuon .ks-kuon-btn:hover {
	opacity: 0.85;
	transform: translateY(-2px);
}
#ks-kuon .ks-kuon-btn-primary {
	background: var(--ks-ink);
	color: #fff;
	border: 1px solid var(--ks-ink);
}
#ks-kuon .ks-kuon-btn-gold {
	background: var(--ks-gold);
	color: #fff;
	border: 1px solid var(--ks-gold-deep);
}
#ks-kuon .ks-kuon-btn-note {
	display: inline-block;
	margin-left: 10px;
	padding: 2px 8px;
	font-size: 12px;
	font-weight: 500;
	background: rgba(255, 255, 255, 0.22);
	border-radius: 3px;
	vertical-align: 2px;
}

/* ================================================================
   1. Hero
================================================================ */
#ks-kuon .ks-kuon-hero {
	text-align: center;
	padding: clamp(70px, 9vw, 120px) clamp(20px, 4vw, 40px) clamp(50px, 7vw, 80px);
	background:
		radial-gradient(ellipse at 50% 0%, rgba(197, 160, 89, 0.06) 0%, transparent 60%),
		linear-gradient(180deg, var(--ks-bg-cream) 0%, #fffaef 50%, #ffffff 100%);
	border-bottom: 1px solid var(--ks-gold-line);
}
#ks-kuon .ks-kuon-eyebrow {
	font-family: "Shippori Mincho", serif;
	font-size: clamp(14px, 1.8vw, 17px);
	color: var(--ks-gold-deep);
	letter-spacing: 0.14em;
	margin: 0 0 18px;
}
#ks-kuon .ks-kuon-title {
	font-family: "Shippori Mincho", serif;
	font-size: clamp(34px, 5.4vw, 56px);
	font-weight: 700;
	color: var(--ks-ink);
	letter-spacing: 0.1em;
	line-height: 1.4;
	margin: 0 0 8px;
}
#ks-kuon .ks-kuon-title-en {
	display: block;
	font-family: "Cormorant Garamond", serif;
	font-size: clamp(16px, 2.2vw, 22px);
	font-weight: 600;
	color: var(--ks-gold);
	letter-spacing: 0.28em;
	margin-top: 6px;
}
#ks-kuon .ks-kuon-copy {
	font-family: "Shippori Mincho", serif;
	font-size: clamp(20px, 3.2vw, 30px);
	font-weight: 500;
	color: var(--ks-ink);
	letter-spacing: 0.08em;
	line-height: 1.7;
	margin: 28px 0 22px;
}
#ks-kuon .ks-kuon-lead {
	max-width: 640px;
	margin: 0 auto 36px;
	font-size: clamp(14px, 1.8vw, 16px);
	color: var(--ks-muted);
}
#ks-kuon .ks-kuon-cta-row {
	display: flex;
	gap: 16px;
	justify-content: center;
	flex-wrap: wrap;
}

/* ================================================================
   2. Stats
================================================================ */
#ks-kuon .ks-kuon-stats {
	padding: clamp(40px, 6vw, 70px) clamp(20px, 4vw, 40px);
	background: var(--ks-bg);
}
#ks-kuon .ks-kuon-stats-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 1px;
	max-width: 980px;
	margin: 0 auto;
	background: var(--ks-line);
	border: 1px solid var(--ks-line);
}
@media (max-width: 800px) {
	#ks-kuon .ks-kuon-stats-grid { grid-template-columns: repeat(2, 1fr); }
}
#ks-kuon .ks-kuon-stat {
	background: var(--ks-bg);
	text-align: center;
	padding: clamp(24px, 3.5vw, 40px) 14px;
}
#ks-kuon .ks-kuon-stat-num {
	display: block;
	font-family: "Cormorant Garamond", "Shippori Mincho", serif;
	font-size: clamp(30px, 4.6vw, 46px);
	font-weight: 700;
	color: var(--ks-gold-deep);
	line-height: 1.2;
	margin-bottom: 10px;
	letter-spacing: 0.04em;
}
#ks-kuon .ks-kuon-stat-label {
	display: block;
	font-size: 13px;
	color: var(--ks-muted);
	line-height: 1.7;
}

/* ================================================================
   見出し共通
================================================================ */
#ks-kuon .ks-kuon-h2 {
	font-family: "Shippori Mincho", serif;
	font-size: clamp(24px, 3.4vw, 32px);
	font-weight: 700;
	color: var(--ks-ink);
	letter-spacing: 0.1em;
	text-align: center;
	margin: 0 0 32px;
	line-height: 1.5;
}
#ks-kuon .ks-kuon-h2-en {
	display: block;
	font-family: "Cormorant Garamond", serif;
	font-size: 14px;
	font-weight: 600;
	color: var(--ks-gold);
	letter-spacing: 0.3em;
	text-transform: uppercase;
	margin-bottom: 8px;
}

/* ================================================================
   3. Story
================================================================ */
#ks-kuon .ks-kuon-story {
	padding: clamp(50px, 7vw, 90px) clamp(20px, 4vw, 40px);
	background: var(--ks-bg-alt);
	border-top: 1px solid var(--ks-line);
	border-bottom: 1px solid var(--ks-line);
}
#ks-kuon .ks-kuon-story-body {
	max-width: 680px;
	margin: 0 auto;
}
#ks-kuon .ks-kuon-story-body p {
	margin: 0 0 1.6em;
}
#ks-kuon .ks-kuon-story-body strong {
	color: var(--ks-ink);
	background: linear-gradient(transparent 68%, var(--ks-gold-bg) 68%);
}
#ks-kuon .ks-kuon-story-link a {
	color: var(--ks-gold-deep);
	font-weight: 700;
	text-decoration: none;
	border-bottom: 1px solid var(--ks-gold-line);
	padding-bottom: 2px;
}
#ks-kuon .ks-kuon-story-link a:hover { opacity: 0.8; }

/* ================================================================
   4. Apps (カード)
================================================================ */
#ks-kuon .ks-kuon-apps {
	padding: clamp(50px, 7vw, 90px) clamp(20px, 4vw, 40px);
	background: var(--ks-bg);
}
#ks-kuon .ks-kuon-apps-note {
	text-align: center;
	max-width: 640px;
	margin: -16px auto 36px;
	font-size: 14px;
	color: var(--ks-muted);
}
#ks-kuon .ks-kuon-card-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 20px;
	max-width: 980px;
	margin: 0 auto;
}
@media (max-width: 900px) {
	#ks-kuon .ks-kuon-card-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
	#ks-kuon .ks-kuon-card-grid { grid-template-columns: 1fr; }
}
#ks-kuon .ks-kuon-card {
	display: flex;
	flex-direction: column;
	background: var(--ks-bg);
	border: 1px solid var(--ks-line);
	border-top: 3px solid var(--ks-gold);
	border-radius: 6px;
	padding: 26px 24px 22px;
	text-decoration: none;
	color: var(--ks-text);
	transition: box-shadow 0.25s ease, transform 0.25s ease;
}
#ks-kuon .ks-kuon-card:hover {
	box-shadow: 0 10px 28px rgba(0, 0, 0, 0.08);
	transform: translateY(-3px);
}
#ks-kuon .ks-kuon-card-title {
	font-family: "Shippori Mincho", serif;
	font-size: 18px;
	font-weight: 700;
	color: var(--ks-ink);
	letter-spacing: 0.06em;
	margin: 0 0 10px;
	line-height: 1.5;
}
#ks-kuon .ks-kuon-card-text {
	font-size: 14px;
	line-height: 1.85;
	color: var(--ks-muted);
	margin: 0 0 16px;
	flex-grow: 1;
}
#ks-kuon .ks-kuon-card-link {
	font-size: 14px;
	font-weight: 700;
	color: var(--ks-gold-deep);
	letter-spacing: 0.06em;
}
#ks-kuon .ks-kuon-apps-all {
	text-align: center;
	margin: 36px 0 0;
}
#ks-kuon .ks-kuon-apps-all a {
	color: var(--ks-gold-deep);
	font-weight: 700;
	text-decoration: none;
	border-bottom: 1px solid var(--ks-gold-line);
	padding-bottom: 2px;
}
#ks-kuon .ks-kuon-apps-all a:hover { opacity: 0.8; }
#ks-kuon .ks-kuon-pricing {
	max-width: 680px;
	margin: 36px auto 0;
	padding: 18px 24px;
	background: var(--ks-gold-bg);
	border: 1px solid var(--ks-gold-line);
	border-radius: 6px;
}
#ks-kuon .ks-kuon-pricing p {
	margin: 0;
	font-size: 14px;
	color: var(--ks-text);
	text-align: center;
}

/* ================================================================
   5. Mic (在庫限定告知)
================================================================ */
#ks-kuon .ks-kuon-mic {
	padding: clamp(50px, 7vw, 90px) clamp(20px, 4vw, 40px);
	background:
		radial-gradient(ellipse at 50% 100%, rgba(197, 160, 89, 0.08) 0%, transparent 60%),
		var(--ks-bg-cream);
	border-top: 1px solid var(--ks-gold-line);
	border-bottom: 1px solid var(--ks-gold-line);
}
#ks-kuon .ks-kuon-mic-inner {
	max-width: 680px;
	margin: 0 auto;
	text-align: center;
}
#ks-kuon .ks-kuon-mic-eyebrow {
	font-family: "Cormorant Garamond", serif;
	font-size: 14px;
	font-weight: 600;
	color: var(--ks-gold);
	letter-spacing: 0.3em;
	text-transform: uppercase;
	margin: 0 0 12px;
}
#ks-kuon .ks-kuon-mic-title {
	font-family: "Shippori Mincho", serif;
	font-size: clamp(21px, 3.2vw, 28px);
	font-weight: 700;
	color: var(--ks-ink);
	letter-spacing: 0.08em;
	line-height: 1.7;
	margin: 0 0 24px;
}
#ks-kuon .ks-kuon-mic-text {
	text-align: left;
	font-size: 15px;
	margin: 0 0 1.4em;
}
#ks-kuon .ks-kuon-mic-text strong {
	color: var(--ks-ink);
}
#ks-kuon .ks-kuon-mic-btn {
	margin-top: 10px;
}

/* ================================================================
   6. Final CTA (クリーム × 金・明色 / v4.3 黒背景全廃)
================================================================ */
#ks-kuon .ks-kuon-final {
	padding: clamp(60px, 8vw, 100px) clamp(20px, 4vw, 40px);
	background:
		radial-gradient(ellipse at 50% 110%, rgba(197, 160, 89, 0.18) 0%, transparent 55%),
		linear-gradient(180deg, #ffffff 0%, #fdf3da 100%);
	border-top: 1px solid var(--ks-gold-line);
	text-align: center;
}
#ks-kuon .ks-kuon-final-title {
	font-family: "Shippori Mincho", serif;
	font-size: clamp(22px, 3.4vw, 32px);
	font-weight: 700;
	color: var(--ks-ink);
	letter-spacing: 0.12em;
	margin: 0 0 14px;
	line-height: 1.6;
}
#ks-kuon .ks-kuon-final-text {
	font-size: 15px;
	color: var(--ks-muted);
	margin: 0 0 30px;
}
#ks-kuon .ks-kuon-final-btn {
	background: var(--ks-gold);
	border-color: var(--ks-gold-deep);
}