/**
 * レイアウト：ヘッダー・フッター・ページ共通構造
 */

/* ===== 変数 ===== */
:root {
	--header-height: 80px;
}

/* ===== サイト全体 ===== */
.site {
	display: flex;
	flex-direction: column;
	min-height: 100vh;
}

.site-content {
	flex: 1;
}

/* ===== ヘッダー ===== */
.site-header {
	position: sticky;
	top: 0;
	z-index: 200;
	height: var(--header-height);
	background-color: var(--color-cream);
	border-bottom: 1px solid var(--color-border-on-light);
	transition: box-shadow var(--transition-base);
}

.site-header.is-scrolled {
	box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.site-header__inner {
	display: flex;
	align-items: center;
	height: 100%;
	gap: var(--space-md);
}

/* ===== ロゴ ===== */
.site-logo,
.site-footer__logo {
	display: flex;
	flex-direction: column;
	line-height: 1;
	text-decoration: none;
	flex-shrink: 0;
}

.site-logo__text {
	font-family: var(--font-jp-serif);
	font-size: 1.375rem;
	font-weight: 700;
	letter-spacing: 0.15em;
	color: var(--color-black);
}

.site-logo__sub {
	font-family: var(--font-en-serif);
	font-size: 0.6rem;
	letter-spacing: var(--letter-spacing-label);
	color: var(--color-gold);
	margin-top: 2px;
}

/* ===== ナビゲーション ===== */
.site-nav {
	flex: 1;
	display: flex;
	justify-content: flex-end;
}

.site-nav__menu {
	display: flex;
	align-items: center;
	gap: clamp(1rem, 2.5vw, 2rem);
	list-style: none;
	margin: 0;
	padding: 0;
}

.site-nav__menu > li > a {
	display: block;
	font-size: 0.875rem;
	font-weight: 500;
	letter-spacing: 0.04em;
	color: var(--color-text-on-light);
	padding: 0.25rem 0;
	position: relative;
}

.site-nav__menu > li > a::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 0;
	width: 0;
	height: 1px;
	background-color: var(--color-accent);
	transition: width var(--transition-base);
}

.site-nav__menu > li > a:hover::after,
.site-nav__menu > li.current-menu-item > a::after {
	width: 100%;
}

/* ドロップダウン */
.site-nav__menu .menu-item-has-children {
	position: relative;
}

.site-nav__menu .sub-menu {
	position: absolute;
	top: calc(100% + 0.75rem);
	left: 50%;
	transform: translateX(-50%);
	min-width: 180px;
	background-color: var(--color-cream);
	border: 1px solid var(--color-border-on-light);
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
	padding: 0.5rem 0;
	opacity: 0;
	visibility: hidden;
	pointer-events: none;
	transition: opacity var(--transition-base), visibility var(--transition-base);
	z-index: 10;
}

.site-nav__menu .menu-item-has-children:hover .sub-menu,
.site-nav__menu .menu-item-has-children.is-open .sub-menu {
	opacity: 1;
	visibility: visible;
	pointer-events: auto;
}

.site-nav__menu .sub-menu li a {
	display: block;
	padding: 0.625rem 1.25rem;
	font-size: 0.8125rem;
	color: var(--color-text-on-light);
	transition: background-color var(--transition-base);
}

.site-nav__menu .sub-menu li a:hover {
	background-color: rgba(184, 153, 104, 0.08);
	color: var(--color-accent);
}

/* ハンバーガーメニュー */
.site-header__hamburger {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 36px;
	height: 36px;
	padding: 4px;
	background: none;
	border: none;
	cursor: pointer;
	flex-shrink: 0;
}

.hamburger-bar {
	display: block;
	width: 100%;
	height: 1.5px;
	background-color: var(--color-black);
	transition: transform 0.3s ease, opacity 0.3s ease;
	transform-origin: center;
}

.site-header__hamburger.is-active .hamburger-bar:nth-child(1) {
	transform: translateY(6.5px) rotate(45deg);
}

.site-header__hamburger.is-active .hamburger-bar:nth-child(2) {
	opacity: 0;
}

.site-header__hamburger.is-active .hamburger-bar:nth-child(3) {
	transform: translateY(-6.5px) rotate(-45deg);
}

/* ===== フッター ===== */
.site-footer {
	background-color: var(--color-charcoal);
	color: var(--color-text-on-dark);
}

.site-footer__inner {
	display: grid;
	grid-template-columns: 1fr 1fr 1fr;
	gap: var(--space-lg) var(--space-md);
	padding-top: clamp(3rem, 6vw, 5rem);
	padding-bottom: clamp(2rem, 4vw, 3rem);
}

.site-footer__logo-text {
	font-family: var(--font-jp-serif);
	font-size: 1.5rem;
	font-weight: 700;
	letter-spacing: 0.15em;
	color: var(--color-cream);
}

.site-footer__logo-sub {
	display: block;
	font-family: var(--font-en-serif);
	font-size: 0.65rem;
	letter-spacing: var(--letter-spacing-label);
	color: var(--color-gold);
	margin-top: 3px;
}

.site-footer__tagline {
	margin-top: var(--space-sm);
	font-size: var(--fs-small);
	color: var(--color-text-muted-on-dark);
	line-height: 1.6;
}

.site-footer__menu {
	display: flex;
	flex-direction: column;
	gap: 0.625rem;
	list-style: none;
	padding: 0;
	margin: 0;
}

.site-footer__menu a {
	font-size: var(--fs-small);
	color: var(--color-text-on-dark);
	opacity: 0.75;
	transition: opacity var(--transition-base);
}

.site-footer__menu a:hover {
	opacity: 1;
	color: var(--color-gold);
}

.site-footer__info {
	font-style: normal;
}

.site-footer__info-row {
	font-size: var(--fs-small);
	color: var(--color-text-on-dark);
	opacity: 0.75;
	margin-bottom: 0.5rem;
	display: flex;
	gap: 0.75rem;
}

.site-footer__info-label {
	flex-shrink: 0;
	color: var(--color-gold);
	font-family: var(--font-en-serif);
	font-size: var(--fs-label);
	letter-spacing: 0.1em;
}

.site-footer__info a {
	color: inherit;
}

.site-footer__info a:hover {
	color: var(--color-gold);
	opacity: 1;
}

.site-footer__bottom {
	border-top: 1px solid var(--color-border-on-dark);
	padding: 1.25rem 0;
}

.site-footer__copyright {
	font-size: var(--fs-label);
	color: var(--color-text-muted-on-dark);
	text-align: center;
	letter-spacing: 0.05em;
}

/* ===== 下層ページ共通 ===== */
.page-hero {
	padding: clamp(3rem, 8vw, 6rem) 0;
	background-color: var(--color-charcoal);
	color: var(--color-text-on-dark);
	text-align: center;
}

.page-hero__title {
	font-size: var(--fs-h2);
	letter-spacing: var(--letter-spacing-heading);
}

.page-hero__label {
	font-family: var(--font-en-serif);
	font-size: var(--fs-small);
	letter-spacing: var(--letter-spacing-label);
	color: var(--color-gold);
	display: block;
	margin-bottom: var(--space-sm);
}

.page-body {
	padding: var(--section-padding-y) 0;
}

.entry-content > * + * {
	margin-top: 1.5em;
}

.entry-content h2 {
	margin-top: 2.5em;
	font-size: var(--fs-h3);
	padding-bottom: 0.5em;
	border-bottom: 1px solid var(--color-border-on-light);
}

.entry-content img {
	border-radius: var(--radius-md);
}

/* ===== モバイル ===== */
@media (max-width: 1023px) {
	.site-header__cta {
		display: none;
	}

	.site-header__hamburger {
		display: flex;
		margin-left: auto;
	}

	.site-nav {
		position: fixed;
		inset: var(--header-height) 0 0 0;
		background-color: var(--color-cream);
		flex-direction: column;
		justify-content: flex-start;
		padding: var(--space-md);
		transform: translateX(100%);
		transition: transform 0.35s ease;
		overflow-y: auto;
		z-index: 199;
	}

	.site-nav.is-open {
		transform: translateX(0);
	}

	.site-nav__menu {
		flex-direction: column;
		align-items: flex-start;
		gap: 0;
		width: 100%;
	}

	.site-nav__menu > li {
		width: 100%;
		border-bottom: 1px solid var(--color-border-on-light);
	}

	.site-nav__menu > li > a {
		display: block;
		padding: 1rem 0;
		font-size: 1rem;
	}

	.site-nav__menu .sub-menu {
		position: static;
		transform: none;
		opacity: 1;
		visibility: visible;
		pointer-events: auto;
		box-shadow: none;
		border: none;
		display: none;
		padding: 0 0 0 1rem;
	}

	.site-nav__menu .menu-item-has-children.is-open .sub-menu {
		display: block;
	}

	.site-footer__inner {
		grid-template-columns: 1fr 1fr;
	}
}

@media (max-width: 767px) {
	.site-footer__inner {
		grid-template-columns: 1fr;
	}
}