/* ==========================================================================
   Research Lab — responsive.css
   Breakpoints (guide): 1200 / 1024 / 768 / 480
   ========================================================================== */

/* ≤ 1200 ------------------------------------------------------------------ */

@media (max-width: 1200px) {
	.site-logo__en {
		letter-spacing: 0.08em;
	}

	.source-diagram {
		grid-template-columns: minmax(0, 1fr) 56px minmax(0, 1fr) 56px minmax(0, 1fr);
	}
}

/* ≤ 1023 : tablet / hamburger ---------------------------------------------- */

@media (max-width: 1023px) {
	:root {
		--header-height: 64px;
	}

	.site-header__brand {
		position: relative;
		z-index: 120;
	}

	.nav-toggle {
		display: block;
	}

	.global-nav {
		position: fixed;
		inset: 0;
		z-index: 110;
		flex-direction: column;
		align-items: stretch;
		gap: 32px;
		padding: calc(var(--header-height) + 24px) var(--gutter) 40px;
		overflow-y: auto;
		background: #fff;
		opacity: 0;
		visibility: hidden;
		transform: translateY(-8px);
		transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0s linear 0.3s;
	}

	.admin-bar .global-nav {
		top: var(--wp-admin--admin-bar--height, 46px);
	}

	.global-nav.is-open {
		opacity: 1;
		visibility: visible;
		transform: none;
		transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0s;
	}

	.global-nav__list {
		flex-direction: column;
		align-items: stretch;
		gap: 0;
		border-top: 1px solid var(--color-border);
	}

	.global-nav__list a {
		flex-direction: row;
		align-items: baseline;
		justify-content: space-between;
		gap: 16px;
		padding: 18px 0;
		border-bottom: 1px solid var(--color-border);
		font-size: 1.125rem;
		letter-spacing: 0.12em;
	}

	.global-nav__list a::after {
		display: none;
	}

	.menu-item__ja {
		display: inline;
		font-family: var(--font-sans);
		font-size: var(--fs-xsmall);
		font-weight: 400;
		letter-spacing: 0.04em;
		color: var(--color-muted);
	}

	.global-nav__cta {
		min-height: 60px;
		justify-content: space-between;
		font-size: 0.9375rem;
	}

	.global-nav__note {
		display: block;
		font-size: var(--fs-small);
		color: var(--color-muted);
	}

	/* Hero */
	.hero::before {
		width: 100%;
		opacity: 0.35;
	}

	.hero__inner {
		grid-template-columns: minmax(0, 1fr);
	}

	.hero__visual {
		max-width: 520px;
		width: 100%;
		margin-inline: auto;
	}

	/* Sections */
	.section-head--split {
		grid-template-columns: minmax(0, 1fr);
	}

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

	.source-diagram {
		grid-template-columns: minmax(0, 1fr);
		gap: 0;
		max-width: 560px;
		margin-inline: auto;
	}

	.source-diagram__lines {
		display: none;
	}

	.source-diagram__list {
		grid-template-rows: none;
	}

	.source-diagram__hub {
		position: relative;
		padding-block: 56px;
	}

	.source-diagram__hub::before,
	.source-diagram__hub::after {
		content: "";
		position: absolute;
		left: 50%;
		width: 1px;
		height: 40px;
		background: var(--color-border-strong);
	}

	.source-diagram__hub::before {
		top: 8px;
	}

	.source-diagram__hub::after {
		bottom: 8px;
		background: var(--color-accent);
	}

	.service-intro__inner {
		grid-template-columns: minmax(0, 1fr);
	}

	.service-intro__visual {
		order: 2;
		max-width: 640px;
		width: 100%;
		margin-inline: auto;
	}

	.compare {
		grid-template-columns: minmax(0, 1fr);
	}

	.compare__arrow {
		padding-block: 16px;
	}

	.compare__arrow .icon {
		transform: rotate(90deg);
	}

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

	.editorial {
		grid-template-columns: minmax(0, 1fr);
	}

	.editorial__list {
		display: grid;
		grid-template-columns: repeat(3, minmax(0, 1fr));
		gap: 32px;
	}

	.editorial__item {
		padding: 24px 0 0;
		border-top: 1px solid var(--color-border-strong);
		border-bottom: 0;
	}

	.editorial__item:first-child {
		padding-top: 24px;
	}

	.about-intro__inner {
		grid-template-columns: minmax(0, 1fr);
	}

	.site-footer__top {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.site-footer__cta {
		grid-column: 1 / -1;
		padding: 32px 0 0;
		border-left: 0;
		border-top: 1px solid var(--color-border-dark);
	}

	/* Pages */
	.split {
		grid-template-columns: minmax(0, 1fr);
	}

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

	/* Researcher single */
	.researcher-consult__box {
		grid-template-columns: minmax(0, 1fr);
	}

	.researcher-consult__themes,
	.researcher-consult__action {
		grid-column: auto;
	}

	.researcher-section {
		grid-template-columns: minmax(0, 1fr);
	}

	.researcher-section__head {
		display: flex;
		flex-wrap: wrap;
		align-items: baseline;
		gap: 4px 16px;
	}

	.researcher-section__title {
		margin-top: 0;
	}

	.researcher-section__ja {
		width: 100%;
	}
}

/* ≤ 767 : mobile ------------------------------------------------------------ */

@media (max-width: 767px) {
	:root {
		--lh-body: 1.85;
	}

	.site-logo {
		gap: 10px;
	}

	.site-logo__mark {
		width: 30px;
		height: 30px;
	}

	.site-logo__name {
		font-size: 0.9375rem;
	}

	.site-logo__en {
		font-size: 0.5625rem;
		letter-spacing: 0.04em;
	}

	/* Hero: copy first */
	.hero {
		padding-top: 32px;
	}

	.hero__label {
		font-size: 0.6875rem;
		letter-spacing: 0.16em;
	}

	.hero__title {
		line-height: 1.42;
	}

	.hero__title-line {
		white-space: normal;
	}

	.hero__title-em {
		display: inline;
	}

	.hero__title-em::after {
		display: none;
	}

	.hero__actions {
		flex-direction: column;
		align-items: stretch;
		gap: 12px;
	}

	.hero__actions .button {
		justify-content: space-between;
		width: 100%;
		padding-inline: 18px;
		letter-spacing: 0;
	}

	.hero__actions .text-link {
		align-self: flex-start;
	}

	.hero__visual {
		margin-top: 16px;
	}

	.hero__keywords {
		grid-template-columns: minmax(0, 1fr);
	}

	.hero__keywords li,
	.hero__keywords li + li {
		padding: 14px 0;
		border-left: 0;
		border-bottom: 1px solid var(--color-border);
	}

	.hero__keywords-ja {
		width: auto;
		margin-left: auto;
	}

	.button--large {
		min-height: 60px;
		padding: 16px 22px;
		font-size: 0.9375rem;
	}

	.section-head--row {
		flex-direction: column;
		align-items: flex-start;
	}

	.section-head--center {
		text-align: left;
	}

	.section-head--center .section-label {
		justify-content: flex-start;
	}

	.problem-grid {
		grid-template-columns: minmax(0, 1fr);
	}

	.problem-item {
		display: grid;
		grid-template-columns: 44px 1fr;
		column-gap: 16px;
		padding: 24px 20px;
	}

	.problem-item__icon {
		grid-row: span 2;
		width: 44px;
		height: 44px;
		margin-bottom: 0;
	}

	.problem-item__num {
		top: 24px;
		right: 20px;
	}

	.problem-item__title {
		padding-right: 2em;
		font-size: 1.0625rem;
	}

	.problem-item__text {
		margin-top: 6px;
	}

	.feature-list {
		grid-template-columns: minmax(0, 1fr);
	}

	.service-intro__visual::before {
		inset: -16px 16px 16px -16px;
	}

	.mockup__menu i:not(.is-cta) {
		display: none;
	}

	.structure-list {
		grid-template-columns: minmax(0, 1fr);
		grid-template-rows: none;
		grid-auto-flow: row;
	}

	.structure-list__item {
		grid-template-columns: 52px minmax(0, 1fr);
		gap: 8px;
		padding: 16px 0;
	}

	.structure-list__num {
		font-size: 2rem;
	}

	.structure-list__text {
		margin-top: 2px;
		line-height: 1.75;
	}

	.compare__panel {
		padding: 28px 22px;
	}

	.compare__text br {
		display: none;
	}

	.researcher-grid,
	.editorial__list,
	.post-grid,
	.reason-grid {
		grid-template-columns: minmax(0, 1fr);
	}

	.researcher-card__body {
		padding: 24px 22px 28px;
	}

	.researcher-card__media {
		aspect-ratio: 16 / 9;
	}

	.about-intro__wordmark {
		font-size: clamp(1.75rem, 8.2vw, 2.75rem);
	}

	.cta-section__actions {
		flex-direction: column;
		align-items: stretch;
	}

	.cta-section__actions .button {
		justify-content: space-between;
	}

	.cta-section__actions .text-link {
		align-self: flex-start;
	}

	.cta-section__points {
		flex-direction: column;
	}

	.site-footer__top {
		grid-template-columns: minmax(0, 1fr);
	}

	.site-footer__bottom {
		flex-direction: column;
		align-items: flex-start;
	}

	.site-footer__company {
		margin-left: 0;
	}

	/* Pages */
	.info-table > div {
		grid-template-columns: minmax(0, 1fr);
		gap: 4px;
	}

	.guide-list__item {
		grid-template-columns: 56px 1fr;
	}

	.guide-list__status {
		grid-column: 2;
		justify-self: start;
	}

	.post-nav {
		grid-template-columns: minmax(0, 1fr);
	}

	.post-nav__link--next {
		grid-column: auto;
	}

	.filter-bar__submit {
		width: 100%;
	}

	/* Researcher single */
	.researcher-hero__inner {
		grid-template-columns: minmax(0, 1fr);
		align-items: start;
	}

	.researcher-hero__portrait {
		order: -1;
		width: min(200px, 55vw);
	}

	.researcher-hero__meta > div {
		grid-template-columns: minmax(0, 1fr);
		gap: 8px;
	}

	.researcher-list--grid,
	.researcher-links {
		grid-template-columns: minmax(0, 1fr);
	}

	.researcher-contact__grid {
		grid-template-columns: minmax(0, 1fr);
	}

	.researcher-consult__action .button {
		width: 100%;
		justify-content: space-between;
	}
}

/* ≤ 480 ----------------------------------------------------------------------- */

@media (max-width: 480px) {
	.site-logo__en {
		display: none;
	}

	/* 36px unless the viewport is too narrow for "研究者の専門知識を、" on one line */
	.hero__title {
		font-size: min(2.25rem, 8.4vw);
		letter-spacing: 0;
	}

	.network__label {
		font-size: 17px;
	}
}

/* Print --------------------------------------------------------------------- */

@media print {
	.site-header,
	.site-footer,
	.cta-section,
	.researcher-toc {
		display: none;
	}

	.js [data-reveal] {
		opacity: 1 !important;
		transform: none !important;
	}
}