/*
 * サイト共通ヘッダー。
 *
 * ヘッダー固有の見た目・メガメニュー・モバイルナビゲーションをこのファイルだけで管理する。
 * 矢印付きリンクの操作表現は link-interactions.css へ集約する。
 */

.l-header {
	--header-mega-group-gap: 36px;
	--header-mega-link-column-gap: 24px;
	--header-service-columns: 4;
	--header-problem-columns: 3;
	--header-request-columns: 2;
	--header-industry-link-height: 35px;
	--header-industry-link-padding-block: 5px;
	--header-industry-heading-gap: 24px;

	position: sticky;
	top: 0;
	z-index: 100;
	background: var(--color-background);
	border-bottom: 1px solid var(--color-border);
}

body.is-menu-open .l-header {
	position: fixed;
	right: 0;
	left: 0;
}

.l-header__inner {
	position: relative;
	display: flex;
	align-items: center;
	min-height: 72px;
	gap: 20px;
}

.l-header__brand {
	display: inline-flex;
	align-items: center;
	min-height: 48px;
	margin-right: auto;
}

.l-header__brand img,
.l-header__brand .custom-logo {
	width: auto;
	max-width: 190px;
	max-height: 42px;
}

.l-header__brand-logo {
	display: block;
	width: 190px;
	height: auto;
	max-width: 100%;
	max-height: none;
}

.l-header__brand-text {
	display: grid;
	gap: 1px;
	color: var(--color-primary-dark);
	line-height: 1.25;
}

.l-header__brand-text strong {
	font-size: 1rem;
	letter-spacing: 0.015em;
}

.l-header__brand-text small {
	color: var(--color-text-secondary);
	font-size: 0.65rem;
	font-weight: 500;
	letter-spacing: 0.04em;
}

.l-header__nav,
.l-header__menu {
	height: 72px;
}

.l-header__menu {
	display: flex;
	align-items: stretch;
	gap: 2px;
	padding: 0;
	margin: 0;
	list-style: none;
}

.l-header__menu-item {
	position: static;
	display: flex;
}

.l-header__menu-item > a {
	position: relative;
	display: inline-flex;
	align-items: center;
	min-height: 48px;
	padding: 0 11px;
	color: #33434d;
	font-size: 0.875rem;
	font-weight: 500;
	white-space: nowrap;
	transition: color 0.2s ease;
}

.l-header__menu-item > a:hover,
.l-header__menu-item > a:focus-visible,
.l-header__menu-item > a[aria-current="page"],
.l-header__menu-item.is-open > a,
.l-header__menu-item:focus-within > a {
	color: var(--color-primary);
}

/* 現在地は下線コンポーネントで示すため、旧3pxバーは使わない。 */
.l-header__menu-item > a::before {
	content: none;
}

.l-header__menu-item--has-children > a::after {
	width: 6px;
	height: 6px;
	margin: -3px 0 0 8px;
	content: "";
	border-right: 1.5px solid currentColor;
	border-bottom: 1.5px solid currentColor;
	transform: rotate(45deg);
	transition: transform 0.16s ease, margin-top 0.16s ease;
}

.l-header__menu-item.is-open > a::after,
.l-header__menu-item:hover > a::after,
.l-header__menu-item:focus-within > a::after {
	margin-top: 3px;
	transform: rotate(225deg);
}

.l-header__mega {
	position: fixed;
	top: var(--site-header-height, 72px);
	right: 0;
	left: 0;
	z-index: 101;
	max-height: calc(100vh - var(--site-header-height, 72px));
	overflow: auto;
	visibility: hidden;
	background: var(--color-background);
	border-top: 1px solid var(--color-border);
	border-bottom: 1px solid var(--color-border);
	box-shadow: 0 18px 42px var(--color-shadow-neutral-soft);
	opacity: 0;
	transform: translateY(-4px);
	transition: visibility 0.18s ease, opacity 0.18s ease, transform 0.18s ease;
}

.l-header__menu-item:hover .l-header__mega,
.l-header__menu-item:focus-within .l-header__mega,
.l-header__menu-item.is-open .l-header__mega {
	visibility: visible;
	opacity: 1;
	transform: translateY(0);
}

.l-header__mega-layout {
	display: grid;
	grid-template-columns: minmax(210px, 0.7fr) minmax(0, 2.3fr);
	align-items: start;
	gap: 52px;
	padding-top: 34px;
	padding-bottom: 40px;
}

.l-header__mega-layout--no-intro {
	grid-template-columns: minmax(0, 1fr);
	gap: 0;
}

.l-header__mega-intro {
	position: sticky;
	top: 34px;
	padding-right: 32px;
	border-right: 1px solid var(--color-border);
}

.l-header__mega-overview {
	display: inline-flex;
	align-items: center;
	min-height: 44px;
	padding-left: 17px;
	color: var(--color-primary);
	font-size: 0.86rem;
	font-weight: 500;
}

.l-header__mega-overview::after {
	display: none !important;
	content: none !important;
}

.l-header__mega-groups {
	display: grid;
	align-items: start;
	gap: var(--header-mega-group-gap);
}

.l-header__mega-groups--2 {
	grid-template-columns: repeat(2, minmax(0, 1fr));
}

.l-header__mega-groups--3 {
	grid-template-columns: repeat(3, minmax(0, 1fr));
}

/*
 * グループ見出しと項目本文の開始位置をそろえる。
 * 旧theme.cssでは最終上書きで左24px・見出し罫線なしになっていたため、
 * legacy撤去後も同じレイアウトをheader.css自身で所有する。
 */
.l-header__mega-group-title {
	display: grid;
	gap: 1px;
	min-height: 58px;
	padding: 0 32px 12px 24px;
	color: var(--color-heading);
	border-bottom: 0;
}

.l-header__mega-group-title span {
	position: relative;
	color: var(--color-heading);
	font-size: 1rem;
	font-weight: 500;
}

.l-header__mega-group-title::before,
.l-header__mega-group-title::after,
.l-header__mega-group-title span::before,
.l-header__mega-group-title span::after,
.l-header__industry-group h3::before,
.l-header__industry-group h3::after {
	display: none !important;
	content: none !important;
}

.l-header__mega-group ul,
.l-header__industry-group ul {
	padding: 0;
	margin: 0;
	list-style: none;
}

.l-header__mega-group li,
.l-header__industry-group li {
	border-bottom: 0;
}

/*
 * メガメニューの項目は左側の矢印分24pxを確保する。
 * 矢印とホバー表現はlink-interactions.css、ここでは行レイアウトだけを管理する。
 */
.l-header__mega-group li a,
.l-header__industry-group a {
	background-color: transparent;
}

.l-header__mega-group li a {
	display: grid;
	grid-template-columns: minmax(0, 1fr) auto;
	align-items: center;
	min-height: 40px;
	gap: 12px;
	padding: 6px 4px 6px 24px;
	color: #33434d;
	font-size: 0.78rem;
	font-weight: 500;
	line-height: 1.45;
}

.l-header__mega-group li a.is-external-link {
	grid-template-columns: max-content auto;
	justify-content: start;
	gap: 0;
}

.l-header__mega-group-title:hover span,
.l-header__mega-group-title:focus-visible span {
	color: var(--color-heading);
}

.l-header__industry-groups {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 24px 30px;
}

.l-header__industry-group h3 {
	padding-bottom: 7px;
	margin: 0 0 var(--header-industry-heading-gap);
	color: var(--color-heading);
	border-bottom: 1px solid var(--color-primary-dark);
	font-size: 0.82rem;
	font-weight: 500;
	line-height: 1.5;
}

.l-header__industry-group a {
	display: flex;
	align-items: center;
	min-height: var(--header-industry-link-height);
	padding: var(--header-industry-link-padding-block) 4px var(--header-industry-link-padding-block) 24px;
	color: #33434d;
	font-size: 0.72rem;
	font-weight: 500;
	line-height: 1.4;
}

.l-header__mega--service .l-header__mega-group ul {
	display: grid;
	grid-template-columns: repeat(var(--header-service-columns), minmax(0, 1fr));
	column-gap: var(--header-mega-link-column-gap);
}

.l-header__mega--problems .l-header__mega-group ul {
	display: grid;
	grid-template-columns: repeat(var(--header-problem-columns), minmax(0, 1fr));
	column-gap: var(--header-mega-link-column-gap);
}

.l-header__mega--results .l-header__mega-groups {
	grid-template-columns: repeat(2, minmax(0, 1fr));
	align-items: start;
	gap: var(--header-mega-group-gap);
}

.l-header__mega--request .l-header__mega-groups {
	grid-template-columns: repeat(var(--header-request-columns), minmax(0, 1fr));
	align-items: start;
	gap: var(--header-mega-group-gap);
}

.l-header__actions {
	display: flex;
	align-items: center;
	gap: 12px;
}

.l-header__diagnosis {
	display: inline-flex;
	align-items: center;
	min-height: 44px;
	color: var(--color-primary);
	font-size: 0.82rem;
	font-weight: 500;
	white-space: nowrap;
}

.l-header__cta {
	white-space: nowrap;
}

.l-header__cta-icon,
.l-header__cta-mobile-label {
	display: none;
}

.l-header__toggle {
	display: none;
	width: 48px;
	height: 48px;
	padding: 11px;
	background: var(--color-background);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	cursor: pointer;
}

.l-header__toggle > span:not(.u-visually-hidden) {
	display: block;
	width: 22px;
	height: 2px;
	margin: 5px auto;
	background: var(--color-text);
	transition: transform 0.16s ease, opacity 0.16s ease;
}

.l-header__toggle[aria-expanded="true"] > span:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}

.l-header__toggle[aria-expanded="true"] > span:nth-child(2) {
	opacity: 0;
}

.l-header__toggle[aria-expanded="true"] > span:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

.l-mobile-nav {
	position: fixed;
	inset: 72px 0 0;
	z-index: 102;
	overflow-x: clip;
	overflow-y: auto;
	visibility: hidden;
	background: var(--color-background);
	border-top: 1px solid var(--color-border);
	opacity: 0;
	transform: translateY(-10px);
	transition: visibility 0s linear 0.22s, opacity 0.22s ease, transform 0.22s ease;
}

.l-mobile-nav.is-open {
	visibility: visible;
	opacity: 1;
	transform: translateY(0);
	transition-delay: 0s;
}

.l-mobile-nav[hidden] {
	display: none;
}

.l-mobile-nav__inner {
	display: grid;
	gap: 22px;
	padding-top: 28px;
	padding-bottom: 48px;
}

.l-mobile-nav__catalog {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 20px 28px;
}

.l-mobile-nav__section {
	align-content: start;
	border-top: 1px solid var(--color-primary);
}

.l-mobile-nav__section summary {
	position: relative;
	display: grid;
	gap: 1px;
	padding: 12px 32px 12px 2px;
	color: var(--color-primary-dark);
	cursor: pointer;
	list-style: none;
}

.l-mobile-nav__section summary::-webkit-details-marker {
	display: none;
}

.l-mobile-nav__section summary::after {
	position: absolute;
	top: 18px;
	right: 8px;
	width: 8px;
	height: 8px;
	content: "";
	border-right: 1px solid var(--color-primary);
	border-bottom: 1px solid var(--color-primary);
	transform: rotate(45deg);
}

.l-mobile-nav__section[open] summary::after {
	top: 23px;
	transform: rotate(225deg);
}

.l-mobile-nav__section summary span {
	font-size: 0.86rem;
	font-weight: 500;
}

.l-mobile-nav__links {
	display: grid;
	border-top: 1px solid var(--color-border);
}

.l-mobile-nav__links a {
	display: flex;
	align-items: center;
	min-height: 44px;
	padding: 7px 22px 7px 2px;
	border-bottom: 1px solid var(--color-border);
	font-size: 0.82rem;
	font-weight: 500;
}

.l-mobile-nav__links a::after {
	margin-left: auto;
	color: var(--color-primary);
	content: "›";
}

.l-mobile-nav__overview {
	color: var(--color-primary);
	font-weight: 500;
}

.l-mobile-nav__group-title {
	padding: 13px 4px 5px;
	margin: 0;
	color: var(--color-primary-dark);
	background: transparent;
	border-bottom: 1px solid var(--color-primary-dark);
	font-size: 0.75rem;
	font-weight: 500;
}

.l-mobile-nav__actions {
	display: grid;
	grid-column: 1 / -1;
	grid-template-columns: 1fr 1fr;
	gap: 12px;
}

@media (max-width: 1120px) {
	.l-header__nav {
		display: none;
	}

	.l-header__toggle {
		display: block;
	}

	.l-header__actions {
		margin-left: auto;
	}

	.l-mobile-nav {
		inset: 72px 0 0;
	}

	.l-mobile-nav__catalog {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 768px) {
	.l-header__inner {
		height: 68px;
		min-height: 68px;
		gap: 8px;
	}

	.l-header__brand-logo {
		width: 165px;
	}

	.l-header__brand img,
	.l-header__brand .custom-logo {
		max-width: 165px;
		max-height: 38px;
	}

	.l-header__brand-text strong {
		font-size: 0.92rem;
	}

	.l-header__brand-text small {
		font-size: 0.6rem;
	}

	.l-header__diagnosis {
		display: none;
	}

	.l-header__actions {
		gap: 8px;
	}

	.c-button.c-button.l-header__cta {
		--button-bg: var(--color-primary);
		--button-slide-bg: var(--color-primary-hover);
		--button-border: var(--color-primary);
		--button-hover-border: var(--color-primary-hover);

		width: 58px;
		min-width: 58px;
		height: 48px;
		min-height: 48px;
		padding: 4px 5px;
		align-items: center;
		justify-content: center;
		flex-direction: column;
		gap: 2px;
	}

	.l-header__cta-label {
		display: none;
	}

	.l-header__cta-icon {
		display: block;
		width: 20px;
		height: 20px;
		background: var(--color-text-inverse);
		-webkit-mask: url("../images/common/mail-icon.svg") center / contain no-repeat;
		mask: url("../images/common/mail-icon.svg") center / contain no-repeat;
	}

	.l-header__cta-mobile-label {
		display: block;
		color: var(--color-text-inverse);
		font-size: 0.5rem;
		font-weight: 600;
		line-height: 1;
		white-space: nowrap;
	}

	.l-header__toggle {
		display: flex;
		width: 58px;
		height: 48px;
		padding: 5px 5px 4px;
		align-items: center;
		justify-content: center;
		flex-direction: column;
	}

	.l-header__toggle > span:not(.u-visually-hidden) {
		margin: 2px auto;
	}

	.l-header__toggle[aria-expanded="true"] > span:nth-child(1) {
		transform: translateY(6px) rotate(45deg);
	}

	.l-header__toggle[aria-expanded="true"] > span:nth-child(3) {
		transform: translateY(-6px) rotate(-45deg);
	}

	.l-header__toggle::after {
		margin-top: 2px;
		color: var(--color-text);
		content: "メニュー";
		font-size: 0.5rem;
		font-weight: 600;
		line-height: 1;
		white-space: nowrap;
	}

	.l-header__toggle[aria-expanded="true"]::after {
		content: "閉じる";
	}

	.l-mobile-nav {
		inset: 68px 0 0;
	}

	.l-mobile-nav__inner {
		gap: 24px;
		padding-top: 20px;
	}

	.l-mobile-nav__catalog {
		gap: 0;
	}

	.l-mobile-nav__catalog,
	.l-mobile-nav__actions {
		grid-template-columns: 1fr;
	}

	.l-mobile-nav__section {
		border-top: 0;
	}

	.l-mobile-nav__section summary {
		display: flex;
		align-items: center;
		min-height: 72px;
		padding: 0 44px 0 0;
		color: var(--color-text);
		border-bottom: 1px solid var(--color-border);
		line-height: 1.5;
	}

	.l-mobile-nav__section summary span {
		font-size: var(--font-size-body);
		font-weight: 700;
		line-height: 1.5;
	}

	.l-mobile-nav__section summary::after {
		top: 50%;
		right: 10px;
		border-right: 2px solid var(--color-text);
		border-bottom: 2px solid var(--color-text);
		transform: translateY(-50%) rotate(45deg);
		transform-origin: center;
		transition: transform 0.2s ease;
	}

	.l-mobile-nav__section[open] summary::after {
		top: 50%;
		transform: translateY(-50%) rotate(225deg);
	}

	.l-mobile-nav__links {
		border-top: 0;
	}

	.l-mobile-nav__links a {
		min-height: 52px;
		padding: 10px 24px;
		color: var(--color-text);
		line-height: 1.6;
	}

	.l-mobile-nav__links a::after {
		color: var(--color-text);
	}

	.l-mobile-nav__overview {
		color: var(--color-text);
	}

	.l-mobile-nav__group-title {
		display: flex;
		align-items: center;
		min-height: 52px;
		padding: 10px 24px;
		margin: 0;
		color: var(--color-text);
		border-bottom: 1px solid var(--color-border);
		font-size: 0.9rem;
		font-weight: 700;
		line-height: 1.5;
	}
}

@media (max-width: 390px) {
	.l-header__brand-logo {
		width: 148px;
	}

	.l-header__brand img,
	.l-header__brand .custom-logo {
		max-width: 148px;
	}

	.l-header__brand-text strong {
		font-size: 0.84rem;
	}

	.l-header__brand-text small {
		font-size: 0.56rem;
	}
}

@media (prefers-reduced-motion: reduce) {
	.l-header__mega,
	.l-header__menu-item--has-children > a::after,
	.l-header__toggle > span:not(.u-visually-hidden),
	.l-mobile-nav,
	.l-mobile-nav__section summary::after {
		transition: none;
	}
}