/* ==========================================================================
   Layout：コンテナ・ヘッダー・フッター・下層ページ見出し
   ========================================================================== */

.l-container {
	width: 100%;
	max-width: calc(var(--container) + var(--gutter) * 2);
	margin-inline: auto;
	padding-inline: var(--gutter);
}

.l-container--narrow {
	max-width: calc(var(--container-narrow) + var(--gutter) * 2);
}

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

.l-main {
	display: block;
	min-height: 60vh;
}

/* Skip link
   -------------------------------------------------------------------------- */
.c-skip-link {
	position: absolute;
	top: -100px;
	left: 16px;
	z-index: 1000;
	padding: 8px 16px;
	background: var(--c-ink);
	color: #fff;
	border-radius: var(--radius-s);
}

.c-skip-link:focus {
	top: 16px;
	color: #fff;
}

/* Header
   -------------------------------------------------------------------------- */
.l-header {
	position: sticky;
	top: 0;
	z-index: 100;
	border-bottom: 1px solid transparent;
	transition: border-color .2s;
}

/* backdrop-filter を本体に付けるとスマホメニュー（fixed）の基準がヘッダーになるため疑似要素に付ける */
.l-header::before {
	content: "";
	position: absolute;
	inset: 0;
	z-index: -1;
	background: rgba(243, 241, 237, .92);
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
}

.admin-bar .l-header { top: 32px; }

@media (max-width: 782px) {
	.admin-bar .l-header { top: 46px; }
}

@media (max-width: 600px) {
	.admin-bar .l-header { top: 0; }
}

.l-header.is-scrolled {
	border-bottom-color: var(--c-line);
}

.l-header__inner {
	display: flex;
	align-items: center;
	gap: 24px;
	max-width: calc(var(--container) + var(--gutter) * 2);
	height: var(--header-h);
	margin-inline: auto;
	padding-inline: var(--gutter);
}

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

.l-header__logo .custom-logo {
	width: auto;
	max-height: 44px;
}

.l-header__nav {
	display: flex;
	align-items: center;
	gap: 28px;
}

.l-header__menu {
	display: flex;
	gap: 24px;
	font-size: .9rem;
	font-weight: 500;
}

.l-header__menu a {
	color: var(--c-ink);
	text-decoration: none;
}

.l-header__menu a:hover,
.l-header__menu .current-menu-item > a {
	color: var(--c-accent);
}

.l-header__actions {
	display: flex;
	align-items: center;
	gap: 16px;
}

.l-header__login {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	color: var(--c-ink);
	font-size: .875rem;
	text-decoration: none;
}

.l-header__login .c-icon {
	width: 16px;
	height: 16px;
}

.l-header__actions .c-btn {
	padding: 10px 20px;
	font-size: .875rem;
}

.l-header__toggle {
	display: none;
	width: 44px;
	height: 44px;
	padding: 10px;
	border: 0;
	border-radius: 50%;
	background: var(--c-surface);
	box-shadow: var(--shadow);
	cursor: pointer;
}

.l-header__toggle .c-icon { width: 24px; height: 24px; }
.l-header__toggle-close { display: none; }
.l-header__toggle[aria-expanded="true"] .l-header__toggle-open { display: none; }
.l-header__toggle[aria-expanded="true"] .l-header__toggle-close { display: inline; }

@media (max-width: 1024px) {
	.l-header__toggle {
		display: inline-flex;
		align-items: center;
		justify-content: center;
	}

	.l-header__nav {
		position: fixed;
		inset: var(--header-h) 0 0 0;
		flex-direction: column;
		align-items: stretch;
		gap: 32px;
		padding: 32px var(--gutter) 48px;
		background: var(--c-base);
		overflow-y: auto;
		visibility: hidden;
		opacity: 0;
		transform: translateY(-8px);
		transition: opacity .2s, transform .2s, visibility .2s;
	}

	.l-header__nav.is-open {
		visibility: visible;
		opacity: 1;
		transform: none;
	}

	.l-header__menu {
		flex-direction: column;
		gap: 0;
		font-size: 1.05rem;
	}

	.l-header__menu a {
		display: block;
		padding: 14px 0;
		border-bottom: 1px solid var(--c-line);
	}

	.l-header__actions {
		flex-direction: column-reverse;
		align-items: stretch;
		text-align: center;
	}

	.l-header__actions .c-btn {
		justify-content: center;
		padding: 16px 24px;
		font-size: 1rem;
	}

	.l-header__login {
		justify-content: center;
		padding: 8px;
	}

	body.is-nav-open {
		overflow: hidden;
	}
}

/* Footer
   -------------------------------------------------------------------------- */
.l-footer {
	margin-top: 0;
	padding-top: 64px;
	background: var(--c-wine-deep);
	color: #efe4e3;
	font-size: .875rem;
}

.l-footer a {
	color: #efe4e3;
	text-decoration: none;
}

.l-footer a:hover {
	color: var(--c-blue-pale);
}

.l-footer__inner {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	gap: 40px;
}

.l-footer .c-logo__mark { color: #fff; }
.l-footer .c-logo__text { color: #fff; }

.l-footer__note {
	margin-top: 12px;
	color: #cdb5b7;
}

.l-footer__nav {
	display: flex;
	flex-wrap: wrap;
	gap: 16px 48px;
}

.l-footer__menu {
	display: grid;
	gap: 10px;
}

.l-footer__copy {
	margin-top: 56px;
	padding: 20px var(--gutter);
	border-top: 1px solid rgba(255, 255, 255, .12);
	color: #cdb5b7;
	font-family: var(--font-display);
	letter-spacing: .12em;
	text-align: center;
}

/* Page header（下層ページ）
   -------------------------------------------------------------------------- */
.p-page-header {
	padding-block: clamp(48px, 8vw, 96px) clamp(32px, 5vw, 56px);
	border-bottom: 1px solid var(--c-ink);
}

.p-page-header__en {
	color: var(--c-wine);
	font-family: var(--font-display);
	font-family: var(--font-display);
	font-size: clamp(2.5rem, 7vw, 4.5rem);
	line-height: 1.05;
	text-transform: capitalize;
}

.p-page-header__title {
	margin-top: 16px;
	font-size: clamp(1.125rem, 2.4vw, 1.5rem);
	font-weight: 500;
	letter-spacing: .12em;
}

.p-page-header__title:first-child {
	margin-top: 0;
	font-size: clamp(1.625rem, 4vw, 2.5rem);
}

.p-entry-header {
	margin-bottom: 40px;
	padding-bottom: 24px;
	border-bottom: 1px solid var(--c-line);
}

.p-entry-header__date {
	color: var(--c-muted);
	font-family: var(--font-display);
	font-size: .875rem;
}

.p-entry-header__title {
	font-size: clamp(1.375rem, 3.4vw, 1.875rem);
}

.p-entry-back {
	margin-top: 56px;
	text-align: center;
}