/* ==========================================================================
   base.css — 季ノ間LP 共通変数・リセット
   配色（藍色・墨色ベース＋金色／朱色）とタイポ（Shippori Mincho＋Noto Sans JP）を
   全セクション共通で参照する
   ========================================================================== */

:root {
	--indigo: #1b2740;
	--indigo-deep: #10192b;
	--ink: #1c1c1c;
	--paper: #f7f4ee;
	--paper-warm: #efe9dd;
	--gold: #c6a664;
	--gold-soft: #e3d3a6;
	--vermillion: #a8402c;
	--line: rgba(198, 166, 100, 0.35);
	--text-on-dark: #f2ede1;
	--text-sub-dark: #b9beca;
	--vh: 1vh;
}

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

html {
	scroll-behavior: smooth;
}

body {
	font-family: "Noto Sans JP", sans-serif;
	color: var(--ink);
	background: var(--paper);
	line-height: 1.9;
	font-weight: 300;
	overflow-x: hidden;
}

body.modal-open {
	overflow: hidden;
}

.serif {
	font-family: "Shippori Mincho", serif;
}

.container {
	max-width: 1180px;
	margin: 0 auto;
	padding: 0 40px;
}

h1,
h2,
h3 {
	font-family: "Shippori Mincho", serif;
	font-weight: 600;
	letter-spacing: 0.04em;
}

img,
.ph {
	display: block;
}

.ph {
	background: linear-gradient(135deg, #3a4a68, #1b2740 60%, #0f1626);
	color: rgba(255, 255, 255, 0.55);
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 12px;
	letter-spacing: 0.1em;
	text-align: center;
	position: relative;
}

.ph.light {
	background: linear-gradient(135deg, #e6dfcd, #cfc4a4 60%, #b7a97e);
	color: rgba(30, 25, 10, 0.5);
}

.ph.has-image {
	background-size: cover;
	background-position: center;
}

.eyebrow {
	font-family: "Shippori Mincho", serif;
	font-size: 12px;
	letter-spacing: 0.35em;
	color: var(--gold);
	text-transform: uppercase;
	margin-bottom: 18px;
	display: inline-block;
}

.gold-rule {
	width: 44px;
	height: 1px;
	background: var(--gold);
	margin: 24px 0;
}

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

button {
	font: inherit;
	border: none;
	background: none;
	cursor: pointer;
	color: inherit;
}

/* ヘッダー */
.site-header {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	z-index: 100;
	padding: 26px 0;
	mix-blend-mode: difference;
}
.site-header .container {
	display: flex;
	align-items: center;
	justify-content: space-between;
}
.logo {
	font-family: "Shippori Mincho", serif;
	font-size: 20px;
	letter-spacing: 0.28em;
	color: #fff;
}
.header-cta {
	font-size: 12px;
	letter-spacing: 0.15em;
	color: #fff;
	border: 1px solid rgba(255, 255, 255, 0.6);
	padding: 10px 26px;
}

@media (max-width: 767px) {
	.container {
		padding: 0 24px;
	}
	.eyebrow {
		font-size: 11px;
		letter-spacing: 0.28em;
		margin-bottom: 14px;
	}
	.gold-rule {
		width: 36px;
		margin: 20px 0;
	}
	.site-header {
		padding: 18px 0;
	}
	.logo {
		font-size: 16px;
		letter-spacing: 0.22em;
	}
	.header-cta {
		font-size: 11px;
		letter-spacing: 0.1em;
		padding: 8px 16px;
	}
}