:root {
  --ink: #111827;
  --muted: #5c6675;
  --line: #dce3ed;
  --surface: #ffffff;
  --soft: #f4f8fb;
  --deep: #17213a;
  --cyan: #13b7ee;
  --violet: #5f3f9a;
  --green: #36a86f;
  --shadow: 0 18px 55px rgba(23, 33, 58, 0.13);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
}

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

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(220, 227, 237, 0.9);
  backdrop-filter: blur(18px);
}

.brand img {
  width: 188px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #263246;
  font-size: 0.93rem;
  font-weight: 650;
}

.site-nav a {
  padding: 9px 12px;
  text-decoration: none;
  border-radius: 6px;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--violet);
  background: #f1f6fb;
}

.site-nav .nav-contact {
  color: white;
  background: var(--deep);
}

.site-nav .nav-contact:hover {
  color: white;
  background: var(--violet);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 9px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--deep);
}

.section {
  padding: clamp(56px, 8vw, 108px) clamp(18px, 5vw, 72px);
}

.no-top {
  padding-top: 0;
}

.home-hero {
  position: relative;
  background: #111827;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  min-height: calc(100vh - 76px);
  padding-top: clamp(34px, 5vw, 72px);
  background:
    linear-gradient(135deg, rgba(19, 183, 238, 0.12), transparent 35%),
    linear-gradient(180deg, #ffffff 0%, #f7fbfd 100%);
}

.page-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1.15fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  background:
    linear-gradient(135deg, rgba(19, 183, 238, 0.12), transparent 35%),
    linear-gradient(180deg, #ffffff 0%, #f7fbfd 100%);
}

.page-hero img {
  width: 100%;
  min-height: 340px;
  max-height: 560px;
  object-fit: cover;
  object-position: 52% center;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-title {
  background:
    linear-gradient(135deg, rgba(19, 183, 238, 0.1), transparent 34%),
    linear-gradient(180deg, #ffffff 0%, #f7fbfd 100%);
}

.page-title h1 {
  max-width: 980px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--violet);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 780px;
  margin-bottom: 22px;
  color: var(--deep);
  font-size: clamp(2.65rem, 7vw, 5.7rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  color: var(--deep);
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: 0;
}

h3 {
  color: var(--deep);
  font-size: 1.18rem;
  line-height: 1.25;
}

.hero-text {
  max-width: 650px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 30px 0 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  color: var(--deep);
  font-weight: 800;
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.button.primary {
  color: white;
  background: var(--violet);
  border-color: var(--violet);
  box-shadow: 0 10px 28px rgba(95, 63, 154, 0.24);
}

.button.primary:hover {
  background: #513586;
}

.button.secondary {
  background: white;
}

.button.secondary:hover {
  border-color: var(--cyan);
}

.button.large {
  min-width: min(100%, 310px);
  font-size: 1rem;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  max-width: 660px;
  margin: 0;
}

.metrics div {
  padding: 16px;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.metrics dt {
  color: var(--deep);
  font-size: 1.55rem;
  font-weight: 850;
}

.metrics dd {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-media {
  overflow: hidden;
  background: #1b1c22;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-media.full-bleed {
  position: relative;
  display: flex;
  justify-content: center;
  padding: 0;
  background: white;
  border-radius: 0;
  box-shadow: none;
}

.hero-media img {
  width: 100%;
  height: clamp(300px, 48vw, 620px);
  object-fit: cover;
  object-position: 52% center;
}

.hero-media.full-bleed img {
  width: 100%;
  height: auto;
  max-height: calc(100vh - 112px);
  object-fit: contain;
  object-position: center center;
}

.hero-overlay {
  position: absolute;
  right: clamp(22px, 6vw, 88px);
  left: clamp(22px, 6vw, 88px);
  z-index: 2;
  color: white;
  text-shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
}

.hero-overlay.top {
  top: clamp(48px, 9vw, 120px);
}

.hero-overlay.bottom {
  bottom: clamp(42px, 7vw, 90px);
}

.hero-overlay h1 {
  max-width: 1000px;
  margin: 0 auto;
  color: white;
  font-size: clamp(2.6rem, 8vw, 7rem);
  text-align: center;
}

.hero-overlay p {
  margin: 0;
  color: white;
  font-size: clamp(1.2rem, 3vw, 2.8rem);
  font-weight: 750;
  text-align: center;
}

.intro {
  padding-top: clamp(42px, 6vw, 80px);
  padding-bottom: clamp(42px, 6vw, 80px);
  background: white;
}

.intro-text {
  max-width: 1040px;
  margin: 0 auto;
  color: var(--deep);
  font-size: clamp(1.45rem, 3.2vw, 2.8rem);
  font-weight: 720;
  line-height: 1.18;
  text-align: center;
}

.intro-text sup {
  font-size: 0.55em;
  line-height: 0;
  vertical-align: super;
}

.intro-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
}

.advantage-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.advantage-list span {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 86px;
  padding: 18px 18px 18px 56px;
  color: var(--deep);
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(23, 33, 58, 0.07);
  font-size: clamp(1.05rem, 1.5vw, 1.32rem);
  font-weight: 800;
  line-height: 1.22;
}

.advantage-list span::before {
  position: absolute;
  left: 18px;
  top: 50%;
  width: 24px;
  height: 24px;
  background: var(--green);
  border-radius: 50%;
  content: "";
  transform: translateY(-50%);
}

.advantage-list span::after {
  position: absolute;
  left: 25px;
  top: 50%;
  width: 9px;
  height: 5px;
  border-bottom: 2px solid white;
  border-left: 2px solid white;
  content: "";
  transform: translateY(-62%) rotate(-45deg);
}

.advantage-list sup {
  font-size: 0.62em;
  line-height: 0;
}

.section-heading {
  max-width: 980px;
  margin-bottom: clamp(24px, 4vw, 46px);
}

.section-heading.compact {
  max-width: 860px;
}

.problem,
.tests {
  background: var(--soft);
}

.feature-grid,
.application-grid,
.team-grid,
.video-grid,
.split,
.overview-grid {
  display: grid;
  gap: 18px;
}

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

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

.feature-grid article,
.application-grid article,
.panel,
.video-card,
.team-member,
.download-card,
.overview-card,
.material-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(23, 33, 58, 0.07);
}

.feature-grid article,
.application-grid article,
.panel,
.video-card,
.team-member,
.download-card,
.overview-card,
.material-card {
  padding: clamp(20px, 3vw, 30px);
}

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

.overview-card {
  min-height: 250px;
  color: inherit;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.overview-card:hover {
  transform: translateY(-3px);
  border-color: rgba(19, 183, 238, 0.55);
  box-shadow: 0 18px 42px rgba(23, 33, 58, 0.12);
}

.overview-card span {
  display: inline-flex;
  margin-bottom: 22px;
  color: var(--violet);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.overview-card p {
  color: var(--muted);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  color: white;
  background: var(--deep);
  border-radius: 50%;
  font-size: 0.82rem;
  font-weight: 850;
}

.feature-grid p,
.application-grid p,
.panel p,
.video-card p,
.team-member p,
.download-card p,
.contact-band p {
  color: var(--muted);
}

.indirect-method {
  margin-top: clamp(34px, 5vw, 58px);
  padding-top: clamp(28px, 4vw, 42px);
  border-top: 1px solid var(--line);
}

.indirect-method p {
  max-width: 980px;
  color: var(--muted);
}

.method-limitations {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 24px 0 18px;
  padding: 0;
  list-style: none;
}

.method-limitations li {
  min-height: 104px;
  padding: 18px;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--deep);
  line-height: 1.45;
}

.indirect-method .method-note {
  margin: 0;
}

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

.product-detail {
  display: grid;
  grid-template-columns: minmax(320px, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
}

.product-section-title {
  grid-column: 1 / -1;
  max-width: 1040px;
  margin-bottom: -10px;
}

.product-section-title .eyebrow {
  font-size: clamp(1rem, 2vw, 1.45rem);
}

.product-section-title h2 {
  max-width: 980px;
  margin-bottom: 0;
  font-size: clamp(2.6rem, 5.8vw, 5.2rem);
}

.product-detail.reverse .product-visual {
  order: 2;
}

.product-detail.reverse .product-copy {
  order: 1;
}

.product-detail.reverse .product-section-title {
  order: 0;
}

.product-visual {
  overflow: hidden;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.product-visual img {
  width: 100%;
  height: auto;
}

.product-visual.report-visual {
  display: flex;
  justify-content: center;
  width: 100%;
  max-width: none;
  padding: clamp(14px, 2vw, 24px);
  justify-self: center;
}

.product-visual.report-visual img {
  width: min(100%, 560px);
}

.product-visual img[src$="report.png"] {
  width: min(100%, 560px) !important;
  margin: 0 auto;
}

.product-copy {
  max-width: 760px;
}

.product-copy h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.letter-list {
  display: grid;
  gap: 14px;
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.letter-list li {
  padding: 16px 18px;
  color: #344154;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.letter-list strong {
  color: var(--deep);
}

.panel {
  min-height: 360px;
}

.panel.accent {
  color: white;
  background: linear-gradient(135deg, var(--deep), #26375b);
  border-color: transparent;
}

.panel.accent h3,
.panel.accent p {
  color: white;
}

.check-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 26px 0 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: #344154;
}

.panel.accent .check-list li {
  color: #edf7fb;
}

.check-list li::before {
  position: absolute;
  left: 0;
  top: 1px;
  width: 18px;
  height: 18px;
  color: white;
  background: var(--green);
  border-radius: 50%;
  content: "";
  font-size: 0.75rem;
  font-weight: 850;
  line-height: 18px;
  text-align: center;
}

.check-list li::after {
  position: absolute;
  left: 5px;
  top: 5px;
  width: 7px;
  height: 4px;
  border-bottom: 2px solid white;
  border-left: 2px solid white;
  content: "";
  transform: rotate(-45deg);
}

.spec-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 22px;
  align-items: start;
}

.spec-page-layout {
  max-width: 980px;
}

.spec-table {
  overflow: hidden;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.spec-table div {
  display: grid;
  grid-template-columns: minmax(150px, 0.38fr) minmax(0, 0.62fr);
  gap: 18px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
}

.spec-table div:last-child {
  border-bottom: 0;
}

.spec-table span {
  color: var(--muted);
  font-weight: 700;
}

.spec-table strong {
  color: var(--deep);
}

.spec-table.formal {
  border-color: #b8c5d9;
}

.spec-table.formal div {
  grid-template-columns: minmax(230px, 0.42fr) minmax(0, 0.58fr);
  gap: 0;
  padding: 0;
  border-bottom: 1px solid white;
}

.spec-table.formal div:nth-child(odd):not(.spec-head) {
  background: #e6ebf5;
}

.spec-table.formal div:nth-child(even):not(.spec-head) {
  background: #cfd7e9;
}

.spec-table.formal span,
.spec-table.formal strong {
  padding: 14px 16px;
  color: #061b3e;
  font-size: clamp(1rem, 1.55vw, 1.22rem);
  line-height: 1.35;
}

.spec-table.formal span {
  border-right: 1px solid white;
}

.spec-table.formal strong {
  font-weight: 500;
}

.spec-table.formal .spec-head {
  background: #4377c9;
}

.spec-table.formal .spec-head span,
.spec-table.formal .spec-head strong {
  color: white;
  font-weight: 850;
}

.spec-table sup,
.feature-grid sup {
  font-size: 0.62em;
  line-height: 0;
  vertical-align: super;
}

.materials-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.materials-groups {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 22px;
  align-items: start;
}

.material-group {
  padding: clamp(22px, 3vw, 34px);
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(23, 33, 58, 0.07);
}

.material-group h3 {
  margin-bottom: 18px;
  font-size: clamp(1.35rem, 2.2vw, 2rem);
}

.publication-list {
  display: grid;
  gap: 18px;
}

.publication-list p {
  margin: 0;
  color: var(--deep);
  font-size: clamp(1rem, 1.5vw, 1.18rem);
  line-height: 1.45;
}

.text-link.inline {
  display: inline-flex;
  margin-top: 0;
  margin-left: 8px;
  white-space: nowrap;
}

.download-actions {
  display: grid;
  gap: 12px;
}

.download-actions .button {
  width: 100%;
}

.material-card {
  min-height: 250px;
}

.material-card p {
  color: var(--muted);
}

.material-card .button {
  margin-top: 10px;
}

.download-card {
  position: sticky;
  top: 96px;
}

.download-card img {
  width: 62px;
  margin-bottom: 20px;
}

.download-card .button {
  width: 100%;
  margin-top: 12px;
}

.text-link {
  display: inline-flex;
  margin-top: 14px;
  color: var(--violet);
  font-weight: 800;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
}

.seo-link {
  margin-top: 22px;
}

.seo-article {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

.seo-section {
  max-width: 980px;
}

.seo-section h2 {
  max-width: 920px;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.seo-section p {
  color: var(--muted);
  font-size: clamp(1rem, 1.35vw, 1.15rem);
}

.seo-callout {
  padding: clamp(24px, 4vw, 42px);
  color: white;
  background: linear-gradient(135deg, var(--deep), #113650);
  border-radius: var(--radius);
}

.seo-callout h2,
.seo-callout p {
  color: white;
}

.seo-callout .button {
  margin-top: 12px;
}

.application-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 26px;
}

.application-grid.six {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 0;
}

.test-stack {
  display: grid;
  gap: 26px;
}

.test-case {
  display: grid;
  grid-template-columns: minmax(260px, 0.38fr) minmax(0, 0.62fr);
  gap: clamp(22px, 4vw, 46px);
  align-items: center;
  padding: clamp(22px, 3.5vw, 36px);
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(23, 33, 58, 0.07);
}

.test-copy h3 {
  font-size: clamp(1.45rem, 2.6vw, 2.35rem);
}

.test-copy p:not(.eyebrow) {
  color: var(--muted);
  font-size: clamp(1rem, 1.4vw, 1.16rem);
}

.test-copy sup {
  font-size: 0.62em;
  line-height: 0;
  vertical-align: super;
}

.test-image {
  overflow: hidden;
  background: #f7fbfd;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.test-image img {
  width: 100%;
  height: auto;
}

.test-image.compact {
  display: flex;
  justify-content: center;
  padding: clamp(14px, 2.5vw, 26px);
}

.test-image.compact img {
  width: min(100%, 448px);
  max-height: 420px;
  object-fit: contain;
}

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

.video-card {
  padding: 0;
  overflow: hidden;
}

.video-card h3,
.video-card p {
  padding-right: 24px;
  padding-left: 24px;
}

.video-card h3 {
  margin-top: 22px;
}

.video-card p {
  margin-bottom: 24px;
}

.video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #0f1627;
}

.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.about {
  background:
    linear-gradient(90deg, rgba(19, 183, 238, 0.09), transparent 42%),
    white;
}

.videos-home {
  background: white;
}

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

.profile-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.profile-card {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  padding: clamp(20px, 3vw, 30px);
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(23, 33, 58, 0.07);
}

.profile-card img {
  width: 180px;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius);
}

.profile-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 10px;
}

.profile-heading h3 {
  margin-bottom: 0;
  font-size: clamp(1.45rem, 2.4vw, 2.1rem);
}

.profile-copy p {
  margin-bottom: 0;
  color: var(--muted);
}

.linkedin-link {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  color: white;
  background: #0a66c2;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 900;
  line-height: 1;
  text-decoration: none;
}

.linkedin-link:hover {
  background: #084f97;
}

.team-member {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.avatar {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 64px;
  height: 64px;
  color: white;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  border-radius: 50%;
  font-weight: 850;
}

.contact {
  padding-top: 34px;
}

.contact-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  padding: clamp(28px, 5vw, 54px);
  color: white;
  background: linear-gradient(135deg, var(--deep), #102840 58%, #123f53);
  border-radius: var(--radius);
}

.contact-band h2,
.contact-band p,
.contact-band .eyebrow {
  color: white;
}

.contact-band p {
  max-width: 700px;
  margin-bottom: 0;
}

.company-info {
  max-width: 980px;
  padding: clamp(22px, 3vw, 34px);
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(23, 33, 58, 0.07);
}

.company-info dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 0;
}

.company-info div {
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.company-info dt {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 800;
}

.company-info dd {
  margin: 0;
  color: var(--deep);
  font-weight: 750;
  line-height: 1.35;
}

.certification-mark {
  width: min(100%, 980px);
  margin-top: 28px;
}

.certification-mark img {
  display: block;
  width: min(100%, 150px);
  height: auto;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(18px, 5vw, 72px);
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer img {
  width: 158px;
}

.site-footer p,
.site-footer span {
  margin: 0;
  font-size: 0.92rem;
}

.footer-link {
  color: var(--violet);
  font-size: 0.92rem;
  font-weight: 800;
  text-decoration: none;
}

.footer-link:hover {
  text-decoration: underline;
}

@media (max-width: 1080px) {
  .site-nav {
    gap: 2px;
    font-size: 0.86rem;
  }

  .hero,
  .page-hero,
  .spec-layout,
  .product-detail {
    grid-template-columns: 1fr;
  }

  .product-detail.reverse .product-visual,
  .product-detail.reverse .product-copy {
    order: initial;
  }

  .download-card {
    position: static;
  }

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

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

  .test-case {
    grid-template-columns: 1fr;
  }

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

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

  .feature-grid.four,
  .materials-grid,
  .materials-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 820px) {
  .site-header {
    min-height: 68px;
  }

  .brand img {
    width: 158px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 68px;
    right: 18px;
    left: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    background: white;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    padding: 12px 14px;
  }

  .hero {
    min-height: auto;
    padding-top: 42px;
  }

  .metrics,
  .feature-grid.three,
  .split,
  .video-grid,
  .team-grid,
  .profile-grid,
  .company-info dl,
  .contact-band,
  .overview-grid {
    grid-template-columns: 1fr;
  }

  .contact-band .button {
    justify-self: start;
  }

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

@media (max-width: 560px) {
  .section {
    padding-right: 16px;
    padding-left: 16px;
  }

  h1 {
    font-size: 2.5rem;
  }

  .hero-media img {
    height: 310px;
    object-position: 45% center;
  }

  .hero-media.full-bleed img {
    max-height: none;
  }

  .hero-overlay.top {
    top: 34px;
  }

  .hero-overlay.bottom {
    bottom: 34px;
  }

  .page-hero img {
    min-height: 300px;
    object-position: 45% center;
  }

  .application-grid {
    grid-template-columns: 1fr;
  }

  .application-grid.six {
    grid-template-columns: 1fr;
  }

  .method-limitations {
    grid-template-columns: 1fr;
  }

  .advantage-list {
    grid-template-columns: 1fr;
  }

  .feature-grid.four,
  .materials-grid,
  .materials-groups {
    grid-template-columns: 1fr;
  }

  .spec-table div {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 18px;
  }

  .spec-table.formal div {
    grid-template-columns: 1fr;
  }

  .spec-table.formal span {
    border-right: 0;
    border-bottom: 1px solid white;
  }

  .team-member {
    flex-direction: column;
  }

  .profile-card {
    grid-template-columns: 1fr;
  }

  .profile-card img {
    width: 100%;
    height: auto;
    aspect-ratio: 1;
  }
}