:root {
  --bg: #f4f8fd;
  --bg-strong: #e8f0fa;
  --surface: rgba(255, 255, 255, 0.84);
  --surface-strong: rgba(255, 255, 255, 0.96);
  --text: #13314d;
  --muted: #56708a;
  --accent: #1e73be;
  --accent-2: #0066ff;
  --accent-dark: #0f3f73;
  --header-bg: rgba(15, 63, 115, 0.94);
  --header-border: rgba(255, 255, 255, 0.14);
  --border: rgba(30, 115, 190, 0.16);
  --shadow: 0 24px 80px rgba(12, 61, 115, 0.12);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 999px;
  --content: 1180px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 0% 0%, rgba(0, 102, 255, 0.12), transparent 34%),
    radial-gradient(circle at 100% 12%, rgba(30, 115, 190, 0.16), transparent 28%),
    linear-gradient(180deg, #fdfefe 0%, var(--bg) 44%, #eef5fc 100%);
  font-family: "Space Grotesk", "Noto Sans JP", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

img,
video,
iframe {
  display: block;
  max-width: 100%;
}

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

p,
ul,
ol {
  margin: 0;
}

p,
li {
  overflow-wrap: anywhere;
}

ul {
  padding-left: 1.2rem;
}

.page-chrome {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 20% 18%, rgba(255, 255, 255, 0.68), transparent 18%),
    radial-gradient(circle at 82% 32%, rgba(142, 192, 245, 0.22), transparent 14%);
  z-index: -1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 22px 20px 0;
}

.header-inner {
  max-width: var(--content);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 18px;
  border: 1px solid var(--header-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(0, 102, 255, 0.16), transparent 32%),
    var(--header-bg);
  backdrop-filter: blur(18px);
  box-shadow: 0 14px 34px rgba(8, 38, 77, 0.22);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
}

.brand-logo {
  width: 216px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.nav-link,
.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.95rem;
  transition: 180ms ease;
}

.nav-link:hover,
.lang-switch:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.1);
}

.nav-link.is-active,
.lang-switch {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.12);
}

.lang-switch {
  margin-left: 6px;
}

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(30, 115, 190, 0.14);
  color: var(--accent-dark);
  background: rgba(30, 115, 190, 0.06);
  font-size: 0.95rem;
  transition: 180ms ease;
}

.chip:hover {
  color: var(--accent-dark);
  border-color: rgba(30, 115, 190, 0.22);
  background: rgba(30, 115, 190, 0.12);
}

.nav-toggle {
  display: none;
  appearance: none;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border-radius: var(--radius-sm);
  min-height: 42px;
  padding: 0 16px;
  font: inherit;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.site-main {
  padding: 40px 20px 112px;
}

.hero,
.section {
  max-width: var(--content);
  margin: 0 auto 36px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 28px;
  align-items: center;
  padding: 56px 0 16px;
}

.page-hero {
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
}

.hero-single {
  grid-template-columns: 1fr;
}

.hero-single .hero-copy {
  max-width: 54rem;
}

.hero-copy,
.hero-media,
.surface,
.split-media {
  border-radius: var(--radius-xl);
}

.hero-copy {
  padding: 6px 0;
}

.eyebrow,
.section-kicker {
  margin-bottom: 14px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.site-footer h2 {
  margin: 0;
  line-height: 0.96;
  letter-spacing: -0.04em;
  font-weight: 700;
}

.section-heading h3 {
  margin: 0;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero h1 {
  font-size: clamp(3.7rem, 8vw, 7rem);
  max-width: 10ch;
}

.page-hero h1 {
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  max-width: 12ch;
}

.lede,
.section-heading p,
.surface p,
.member-card p,
.contact-card p {
  color: var(--muted);
  font-size: 1.05rem;
}

.lede {
  max-width: 40rem;
  margin-top: 18px;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.button-row,
.section-actions,
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
  box-shadow: 0 12px 30px rgba(12, 61, 115, 0.2);
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 36px rgba(12, 61, 115, 0.24);
}

.button.button-secondary {
  background: rgba(255, 255, 255, 0.76);
  color: var(--accent-dark);
  border-color: var(--border);
  box-shadow: none;
}

.hero-media {
  position: relative;
}

.hero-image-frame,
.split-media,
.video-shell {
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  box-shadow: var(--shadow);
}

.hero-image-frame {
  min-height: 520px;
  border-radius: var(--radius-xl);
}

.hero-home .hero-image-frame {
  min-height: 0;
}

.hero-image-frame img,
.split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-home .hero-image-frame img {
  display: block;
  height: auto;
}

.floating-note {
  position: absolute;
  right: 20px;
  bottom: -18px;
  max-width: 240px;
  padding: 18px 20px;
}

.surface {
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  padding: 24px;
}

.section {
  padding: 12px 0;
}

.section-accent .surface,
.highlight-card {
  background: linear-gradient(180deg, rgba(247, 251, 255, 0.96), rgba(234, 243, 252, 0.9));
}

.section-heading {
  margin-bottom: 22px;
}

.section-heading-compact {
  margin-bottom: 16px;
}

.section-heading h2,
.site-footer h2 {
  font-size: clamp(2rem, 4vw, 3.3rem);
  max-width: 14ch;
}

.card-grid,
.metric-grid,
.member-grid,
.contact-grid,
.stack-grid {
  display: grid;
  gap: 18px;
}

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

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

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

.card-grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

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

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

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

.surface h3,
.resource-card h3,
.member-card h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  line-height: 1.15;
}

.member-card {
  display: grid;
  gap: 16px;
  padding: 0;
  overflow: hidden;
}

.member-card img {
  width: 100%;
  aspect-ratio: 1 / 0.9;
  object-fit: cover;
}

.member-card > div {
  padding: 0 20px 20px;
}

.tech-card img {
  width: 84px;
  height: 84px;
  margin-bottom: 18px;
  object-fit: contain;
}

.step-card {
  min-height: 100%;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 28px;
  align-items: stretch;
}

.split-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 20px;
  padding: 14px 0;
}

.split-copy.surface,
.split-media.surface {
  min-height: 100%;
}

.split-media {
  min-height: 380px;
  padding: 0;
}

.logo-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
}

.logo-chip {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 136px;
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.72);
}

.logo-chip:hover {
  border-color: rgba(30, 115, 190, 0.24);
  background: rgba(255, 255, 255, 0.88);
}

.logo-chip img {
  max-width: 72%;
  max-height: 56px;
  width: auto;
  object-fit: contain;
}

.home-intro .section-heading h2 {
  max-width: 18ch;
}

.home-contact .section-heading h2 {
  max-width: 12ch;
}

.home-intro .split-media,
.home-contact .split-media {
  min-height: 420px;
}

.home-callout {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}

.home-callout .section-heading,
.home-callout .button-row {
  margin: 0;
}

.about-page-title {
  padding-top: 44px;
}

.about-page-title h1 {
  margin: 0;
  font-size: clamp(3rem, 8vw, 5.4rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.about-mission-grid,
.about-media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  align-items: stretch;
}

.about-mission-copy h2,
.about-document h2,
.about-contact-copy h2 {
  margin: 0 0 16px;
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.about-mission-copy-single {
  max-width: 60rem;
}

.about-inline-video {
  min-height: 100%;
}

.about-inline-video video {
  width: 100%;
  height: 100%;
  min-height: 100%;
  aspect-ratio: auto;
  object-fit: cover;
  background: #000;
  transform: scale(1.06);
  transform-origin: center;
}

.about-rule {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 18px;
  align-items: center;
  margin: 40px 0 24px;
}

.about-rule h3 {
  margin: 0;
  font-size: 1.18rem;
  line-height: 1.15;
}

.about-rule-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(19, 40, 44, 0.2), transparent);
}

.about-member-grid,
.about-logo-grid,
.about-tech-grid {
  display: grid;
  gap: 18px;
}

.about-member-grid-board {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.about-member-grid-distinguished {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 840px;
  margin: 0 auto;
}

.member-card-compact {
  max-width: 360px;
  width: 100%;
  justify-self: center;
}

.member-card-compact img {
  aspect-ratio: 1 / 1;
}

.about-logo-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.about-logo-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 136px;
}

.about-logo-panel img {
  width: auto;
  max-width: 72%;
  max-height: 56px;
  object-fit: contain;
}

.about-empty {
  min-height: 20px;
  border-top: 1px dashed rgba(19, 40, 44, 0.16);
}

.about-support-list {
  list-style: none;
  padding: 26px 28px;
  display: grid;
  gap: 14px;
}

.about-support-list li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
}

.about-support-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent);
  transform: translateY(-50%);
}

.about-document {
  text-align: center;
  padding: 34px 24px;
}

.about-document p {
  display: flex;
  justify-content: center;
}

.about-tech-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 30px;
}

.about-tech-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.about-tech-card {
  display: grid;
  align-content: start;
  justify-items: center;
  gap: 18px;
  min-height: 100%;
  text-align: center;
}

.about-tech-card h3 {
  margin: 0;
  font-size: 1.04rem;
  line-height: 1.2;
}

.about-tech-icon {
  width: 100%;
  max-width: 164px;
  aspect-ratio: 1 / 1;
  object-fit: contain;
}

.about-tech-sponsor {
  display: flex;
  align-items: center;
  justify-content: center;
  width: min(100%, 176px);
  height: 56px;
  padding: 8px 12px;
}

.about-tech-sponsor img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.about-contact-copy {
  padding: 32px;
}

.page-title-section,
.technology-page-title {
  padding-top: 44px;
}

.page-title-panel,
.technology-title-panel {
  padding: 44px 40px;
  background:
    linear-gradient(135deg, rgba(30, 115, 190, 0.16), rgba(255, 255, 255, 0.82)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.7));
}

.page-title-panel h1,
.technology-title-panel h1 {
  margin: 0;
  font-size: clamp(3rem, 8vw, 5.4rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.section-divider-title {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 18px;
  align-items: center;
  margin-bottom: 30px;
}

.section-divider-title h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3.6vw, 2.7rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.section-divider-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(19, 40, 44, 0.2), transparent);
}

.related-intro-panel,
.news-twitter-panel,
.contact-panel {
  max-width: 920px;
  margin: 0 auto;
}

.related-intro-panel p,
.news-twitter-panel p,
.contact-panel p {
  color: var(--muted);
}

.news-twitter-panel {
  display: grid;
  justify-items: center;
  gap: 14px;
  text-align: center;
}

.news-twitter-embed-list {
  display: grid;
  gap: 20px;
  width: min(100%, 560px);
}

.news-twitter-embed {
  width: 100%;
  overflow: hidden;
}

.news-twitter-embed iframe {
  max-width: 100%;
  margin-inline: auto !important;
}

.news-release-grid,
.news-media-stack,
.publication-archive {
  display: grid;
  gap: 18px;
}

.news-release-grid,
.news-media-stack,
.publication-archive,
.contact-page-layout {
  max-width: 980px;
  margin: 0 auto;
}

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

.news-release-card,
.news-media-year,
.publication-year-static {
  min-height: 100%;
}

.publication-year-static {
  display: grid;
  gap: 14px;
}

.publication-year-heading,
.contact-panel h2 {
  margin: 0;
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.contact-panel {
  padding: 32px;
}

.contact-detail-stack {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.contact-detail-item p:last-child {
  max-width: 34rem;
}

.contact-map-frame {
  overflow: hidden;
  padding: 0;
}

.contact-map-frame iframe {
  display: block;
  width: 100%;
  min-height: 420px;
  border: 0;
}

.technology-video-frame {
  overflow: hidden;
  background: #000;
}

.technology-video-frame iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
}

.technology-system-section {
  display: grid;
  grid-template-columns: minmax(220px, 0.38fr) minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}

.technology-system-copy {
  padding-top: 8px;
}

.technology-system-copy h2,
.technology-section-title h2,
.technology-contact-copy h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.technology-system-media {
  display: grid;
  gap: 18px;
  padding: 24px;
}

.technology-system-media img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.technology-system-labels {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.technology-system-labels li {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--muted);
  font-size: 0.92rem;
}

.technology-section-title {
  margin-bottom: 22px;
  text-align: center;
}

.technology-card-grid,
.technology-video-grid {
  display: grid;
  gap: 18px;
}

.technology-card-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.technology-card {
  display: grid;
  align-content: start;
  justify-items: center;
  gap: 18px;
  min-height: 100%;
  text-align: center;
}

.technology-card-image {
  width: min(100%, 220px);
  height: 168px;
  object-fit: contain;
}

.technology-card h3 {
  margin: 0;
  font-size: 1.04rem;
  line-height: 1.22;
}

.technology-card-sponsor {
  display: flex;
  align-items: center;
  justify-content: center;
  width: min(100%, 176px);
  height: 56px;
  padding: 8px 12px;
  margin-top: auto;
}

.technology-card-sponsor img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.technology-card-sponsor-empty {
  visibility: hidden;
}

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

.technology-contact-copy {
  padding: 32px;
}

.technology-contact-copy p {
  max-width: 38rem;
}

.link-list,
.publication-list {
  display: grid;
  gap: 12px;
  margin-top: 10px;
  color: var(--muted);
}

.link-list.dense,
.publication-list {
  gap: 10px;
}

.link-list li,
.publication-list li {
  break-inside: avoid;
}

.link-list a,
.publication-list a {
  text-decoration: underline;
  text-decoration-color: rgba(30, 115, 190, 0.4);
  text-underline-offset: 0.18em;
}

.news-card,
.publication-year,
.resource-card,
.contact-card {
  min-height: 100%;
}

.publication-list {
  column-count: 2;
  column-gap: 24px;
}

.video-shell {
  padding: 0;
  border-radius: var(--radius-xl);
}

.video-shell video {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
}

.site-footer {
  padding: 8px 20px 52px;
}

.footer-shell {
  max-width: var(--content);
  margin: 0 auto;
  padding: 28px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.74);
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-row-top {
  align-items: flex-start;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
}

.footer-brand img {
  width: min(220px, 100%);
  height: auto;
}

.footer-row-action {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-height: 42px;
}

.footer-rule {
  height: 1px;
  margin: 18px 0;
  background: linear-gradient(90deg, transparent, rgba(19, 40, 44, 0.2), transparent);
}

.footer-language-link,
.footer-follow-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  color: var(--muted);
  transition: 180ms ease;
}

.footer-language-link:hover,
.footer-follow-link:hover {
  color: var(--text);
}

.footer-language-link svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.footer-follow-link,
.footer-copy {
  margin: 0;
  font-size: 0.95rem;
}

.footer-copy {
  text-align: right;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 560ms ease, transform 560ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1040px) {
  .site-header {
    padding: 18px 14px 0;
  }

  .header-inner {
    gap: 14px;
    padding: 12px 14px;
    flex-wrap: wrap;
  }

  .brand-logo {
    width: 188px;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .site-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    margin-top: 2px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

  .site-nav.is-open {
    display: flex;
  }

  .nav-link,
  .lang-switch {
    width: 100%;
    justify-content: flex-start;
    margin-left: 0;
    background: rgba(255, 255, 255, 0.08);
  }

  .hero,
  .split-section,
  .page-hero,
  .technology-system-section,
  .contact-page-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 32px;
    padding-bottom: 12px;
  }

  .hero-copy,
  .hero-single .hero-copy {
    max-width: none;
  }

  .hero-image-frame {
    min-height: 420px;
  }

  .publication-list {
    column-count: 1;
  }

  .card-grid,
  .card-grid-3,
  .card-grid-4,
  .metric-grid,
  .about-member-grid-board,
  .about-logo-grid,
  .about-tech-grid,
  .about-mission-grid,
  .about-media-grid,
  .technology-card-grid,
  .technology-video-grid,
  .logo-strip,
  .news-release-grid-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .card-grid-2,
  .member-grid,
  .contact-grid,
  .stack-grid {
    grid-template-columns: 1fr;
  }

  .about-tech-head,
  .home-callout {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 680px) {
  .site-header {
    padding: 16px 12px 0;
  }

  .header-inner {
    gap: 12px;
    padding: 12px;
  }

  .brand {
    max-width: calc(100% - 88px);
  }

  .brand-logo {
    width: min(172px, 100%);
  }

  .nav-toggle {
    padding: 0 14px;
  }

  .site-nav {
    padding-top: 10px;
  }

  .button-row,
  .section-actions,
  .chip-row {
    flex-direction: column;
    align-items: stretch;
  }

  .button,
  .chip {
    width: 100%;
  }

  .about-mission-grid,
  .about-media-grid,
  .about-member-grid-board,
  .about-member-grid-distinguished,
  .about-logo-grid,
  .about-tech-grid,
  .technology-card-grid,
  .technology-video-grid,
  .news-release-grid-cards {
    grid-template-columns: 1fr;
  }

  .about-rule {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .section-divider-title {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .section-divider-line:first-child {
    display: none;
  }

  .about-rule-line:first-child {
    display: none;
  }

  .about-tech-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-title-panel,
  .technology-title-panel,
  .about-contact-copy,
  .technology-contact-copy,
  .contact-panel {
    padding: 28px 24px;
  }

  .contact-panel,
  .about-document,
  .footer-shell,
  .surface {
    padding: 20px;
  }

  .contact-map-frame iframe {
    min-height: 320px;
  }

  .site-main {
    padding: 28px 12px 72px;
  }

  .hero,
  .page-hero,
  .split-section,
  .card-grid,
  .card-grid-2,
  .card-grid-3,
  .card-grid-4,
  .metric-grid,
  .member-grid,
  .contact-grid,
  .stack-grid,
  .logo-strip {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: clamp(2.8rem, 14vw, 4.4rem);
  }

  .hero-image-frame {
    min-height: 360px;
  }

  .surface {
    padding: 20px;
  }

  .floating-note {
    position: static;
    margin-top: 14px;
    max-width: none;
  }

  .hero-image-frame,
  .split-media,
  .home-intro .split-media,
  .home-contact .split-media {
    min-height: 280px;
  }

  .technology-system-media {
    padding: 20px;
  }

  .about-logo-panel,
  .logo-chip {
    min-height: 96px;
  }

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

  .footer-row-action,
  .footer-copy {
    justify-content: flex-start;
    text-align: left;
  }
}

@media (max-width: 420px) {
  .hero h1,
  .page-hero h1,
  .page-title-panel h1,
  .technology-title-panel h1,
  .about-page-title h1 {
    font-size: clamp(2.35rem, 15vw, 3.2rem);
  }

  .lede,
  .section-heading p,
  .surface p,
  .member-card p,
  .contact-card p {
    font-size: 1rem;
  }

  .site-main {
    padding-bottom: 40px;
  }

  .contact-map-frame iframe {
    min-height: 260px;
  }
}