:root {
  --alt-green: #008a00;
  --alt-blue: #315f7c;
  --alt-copper: #a76032;
  --alt-ink: #24322a;
  --alt-text: #526057;
  --alt-line: #d9ded9;
  --alt-bg: #f3f5f2;
  --alt-white: #ffffff;
}

.alt-home {
  background: var(--alt-white);
  color: var(--alt-text);
}

.alt-home h1,
.alt-home h2,
.alt-home h3,
.alt-home p {
  letter-spacing: 0;
}

.alt-home main p:not(.alt-kicker):not(.alt-hero__eyebrow) {
  -webkit-hyphens: auto;
  hyphens: auto;
  overflow-wrap: break-word;
  text-wrap: pretty;
}

.alt-home h2,
.alt-home h3 {
  color: var(--alt-ink);
  font-family: var(--font-head);
  font-weight: 400;
}

.alt-home h2 {
  margin: 0;
  font-size: clamp(1.9rem, 3.3vw, 3.55rem);
  line-height: 1.08;
}

.alt-home h3 {
  margin: 0;
  line-height: 1.18;
}

.alt-nav {
  background: rgba(255, 255, 255, 0.94);
}

.alt-nav .nav__links {
  gap: 1.05rem;
}

.alt-nav .btn--nav {
  border-radius: 8px;
}

.alt-section {
  padding-block: clamp(5.5rem, 10vw, 9rem);
}

.alt-kicker {
  margin: 0 0 0.8rem;
  color: var(--alt-text);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.alt-heading {
  margin-bottom: clamp(2.6rem, 5vw, 4.8rem);
}

.alt-heading--split {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(18rem, 0.65fr);
  gap: clamp(2rem, 7vw, 7rem);
  align-items: end;
}

.alt-heading--split > p,
.alt-heading--center > p {
  margin: 0;
  font-size: clamp(1rem, 1.35vw, 1.15rem);
  line-height: 1.7;
}

.alt-heading--center {
  max-width: 62rem;
  margin-inline: auto;
  text-align: center;
}

.alt-heading--center h2 {
  margin-inline: auto;
  max-width: 21ch;
}

.alt-heading--center > p {
  max-width: 49rem;
  margin: 1.35rem auto 0;
}

.alt-button {
  display: inline-flex;
  min-height: 3.15rem;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0.78rem 1.35rem;
  color: inherit;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.alt-button:hover {
  transform: translateY(-1px);
}

.alt-button--solid {
  border-color: var(--alt-green);
  background: var(--alt-green);
  color: #fff;
}

.alt-button--solid:hover {
  border-color: #007600;
  background: #007600;
  color: #fff;
}

.alt-button--glass {
  border-color: rgba(36, 50, 42, 0.5);
  background: rgba(255, 255, 255, 0.72);
  color: var(--alt-ink);
  backdrop-filter: blur(8px);
}

.alt-button--glass:hover {
  border-color: var(--alt-green);
  background: #fff;
  color: var(--alt-green);
}

.alt-button--block {
  width: 100%;
}

.alt-hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  overflow: hidden;
  background: #eef1ee;
  color: var(--alt-ink);
}

.alt-hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.alt-hero__inner {
  position: relative;
  z-index: 1;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding-block: clamp(6.5rem, 14vh, 9rem) clamp(3.5rem, 8vh, 5rem);
}

.alt-hero__eyebrow {
  margin: 0 0 1.4rem;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-shadow: 0 1px 14px rgba(255, 255, 255, 0.9);
  text-transform: uppercase;
}

.alt-hero h1 {
  max-width: 22ch;
  margin: 0;
  color: var(--alt-ink);
  font-family: var(--font-head);
  font-size: clamp(2.05rem, 3.1vw, 2.85rem);
  font-weight: 400;
  line-height: var(--lh-display);
  text-shadow: 0 1px 16px rgba(255, 255, 255, 0.92);
}

.alt-hero h1 span,
.alt-hero h1 strong {
  display: block;
  font: inherit;
}

.alt-hero h1 strong {
  margin-top: 0.12em;
  color: var(--alt-ink);
  font-size: 1em;
  line-height: inherit;
}

.alt-hero__lead {
  max-width: 34rem;
  margin: 1.5rem 0 0;
  font-size: var(--text-lg);
  line-height: 1.55;
  text-shadow: 0 1px 14px rgba(255, 255, 255, 0.92);
}

.alt-hero__benefit {
  max-width: 34rem;
  margin: 1rem 0 0;
  color: rgba(36, 50, 42, 0.78);
  font-size: 0.95rem;
  font-weight: 600;
  text-shadow: 0 1px 12px rgba(255, 255, 255, 0.94);
}

.alt-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.alt-principles {
  border-bottom: 1px solid var(--alt-line);
  background: #fff;
}

.alt-principles__inner {
  min-height: 5.25rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: center;
}

.alt-principles span {
  padding-inline: 1.5rem;
  color: var(--alt-ink);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
}

.alt-principles span + span {
  border-left: 1px solid var(--alt-line);
}

.alt-challenges {
  background: #fff;
}

.alt-challenges .alt-heading h2 {
  max-width: 22ch;
}

.alt-challenges__layout {
  display: grid;
  grid-template-columns: minmax(26rem, 1.05fr) minmax(22rem, 0.95fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
}

.alt-challenges__visual {
  position: sticky;
  top: 7rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.alt-challenges__visual figure {
  margin: 0;
}

.alt-challenges__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  border-radius: 6px;
  object-fit: cover;
}

.alt-challenges__visual figcaption {
  padding-top: 1rem;
  font-size: 0.88rem;
  line-height: 1.55;
}

.alt-challenges__visual figcaption span {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--alt-ink);
  font-weight: 800;
}

.alt-challenges__list {
  border-top: 1px solid var(--alt-line);
}

.alt-challenges__list article {
  display: grid;
  grid-template-columns: 0.7rem 1fr;
  gap: 1.2rem;
  padding-block: clamp(1.6rem, 4vw, 2.6rem);
  border-bottom: 1px solid var(--alt-line);
}

.alt-challenges__list h3 {
  font-size: clamp(1.35rem, 2vw, 1.9rem);
}

.alt-challenges__list p {
  margin: 0.65rem 0 0;
}

.alt-signal {
  width: 0.62rem;
  height: 0.62rem;
  margin-top: 0.5rem;
  border-radius: 50%;
  background: var(--alt-green);
}

.alt-signal--copper { background: var(--alt-copper); }
.alt-signal--blue { background: var(--alt-blue); }

.alt-system {
  background: var(--alt-bg);
  border-block: 1px solid var(--alt-line);
}

.alt-module-chain {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.85rem;
}

.alt-module {
  min-height: 13rem;
  padding: 1.6rem;
  border: 1px solid var(--alt-line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.78);
}

.alt-module--current {
  border-color: rgba(0, 138, 0, 0.38);
  background: #fff;
}

.alt-module h3 {
  font-size: 1.4rem;
}

.alt-module p {
  margin: 0.85rem 0 0;
  font-size: 0.9rem;
  line-height: 1.55;
}

.alt-circuit {
  display: grid;
  grid-template-columns: minmax(18rem, 0.75fr) minmax(24rem, 1.25fr);
  min-height: 34rem;
  margin-top: clamp(3rem, 7vw, 6rem);
  overflow: hidden;
  border: 1px solid var(--alt-line);
  border-radius: 6px;
  background: #fff;
}

.alt-circuit__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.alt-circuit__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(2rem, 5vw, 5rem);
}

.alt-circuit__copy h3 {
  max-width: 18ch;
  font-size: clamp(1.85rem, 3.2vw, 3.1rem);
}

.alt-circuit__copy > p:not(.alt-kicker) {
  max-width: 42rem;
  margin: 1.3rem 0 0;
  font-size: 1.05rem;
}

.alt-circuit__flow {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 2.6rem;
  overflow: hidden;
}

.alt-circuit__flow span {
  color: var(--alt-ink);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  white-space: nowrap;
}

.alt-circuit__flow i {
  min-width: 1.2rem;
  flex: 1;
  height: 1px;
  background: var(--alt-line);
}

.alt-circuit__cta {
  align-self: flex-start;
  margin-top: 2rem;
}

.alt-performance {
  background: #fff;
}

.alt-performance .alt-heading h2 {
  max-width: 13ch;
}

.alt-test-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--alt-line);
  list-style: none;
  counter-reset: alt-step;
}

.alt-test-flow li {
  position: relative;
  min-height: 14rem;
  padding: 2rem;
  border-right: 1px solid var(--alt-line);
  border-bottom: 1px solid var(--alt-line);
  counter-increment: alt-step;
}

.alt-test-flow li:nth-child(3n + 1) {
  border-left: 1px solid var(--alt-line);
}

.alt-test-flow li::before {
  content: counter(alt-step, decimal-leading-zero);
  display: block;
  margin-bottom: 2.6rem;
  color: var(--alt-green);
  font-family: var(--font-head);
  font-size: 0.78rem;
}

.alt-test-flow span {
  color: var(--alt-ink);
  font-size: 1.1rem;
  font-weight: 800;
}

.alt-test-flow p {
  margin: 0.65rem 0 0;
  font-size: 0.92rem;
  line-height: 1.55;
}

.alt-performance__action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-top: 2rem;
}

.alt-performance__action p {
  margin: 0;
}

.alt-kpis {
  background: #eef2ee;
  border-block: 1px solid var(--alt-line);
}

.alt-kpis__heading {
  margin-bottom: clamp(2.8rem, 5vw, 4.5rem);
}

.alt-kpis__heading h2 {
  max-width: 16ch;
}

.alt-kpi-framework {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2.5rem, 5vw, 5rem) clamp(2rem, 6vw, 6rem);
}

.alt-kpi-framework article {
  padding-top: 1.6rem;
  border-top: 3px solid var(--kpi-accent);
}

.alt-kpi-framework article > p {
  margin: 0 0 1.2rem;
  color: var(--kpi-accent);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}

.alt-kpi-framework h3 {
  max-width: 20ch;
  font-size: clamp(1.4rem, 2vw, 1.9rem);
}

.alt-kpi-framework article > span {
  display: block;
  max-width: 34rem;
  margin-top: 1rem;
  font-size: 0.9rem;
  line-height: 1.6;
}

.alt-kpi-framework__footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 1.25rem;
  align-items: center;
  margin-top: clamp(3.5rem, 7vw, 6rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--alt-line);
}

.alt-kpi-framework__footer p {
  display: grid;
  gap: 0.35rem;
  margin: 0;
}

.alt-kpi-framework__footer strong {
  color: var(--alt-ink);
  font-size: 0.85rem;
}

.alt-kpi-framework__footer span {
  font-size: 0.76rem;
  line-height: 1.5;
}

.alt-kpi-framework__footer i {
  width: clamp(2rem, 5vw, 5rem);
  height: 1px;
  background: var(--alt-line);
}

.alt-proof {
  background: #fff;
}

.alt-proof .alt-heading h2 {
  max-width: 15ch;
}

.alt-studies {
  display: grid;
  gap: 2rem;
}

.alt-study {
  --study-accent: var(--alt-green);
  display: grid;
  grid-template-columns: minmax(19rem, 0.78fr) minmax(30rem, 1.22fr);
  border-block: 1px solid color-mix(in srgb, var(--study-accent) 28%, transparent);
}

.alt-study--corrosion {
  --study-accent: var(--alt-copper);
}

.alt-study__summary,
.alt-study__evidence {
  padding-block: clamp(3rem, 6vw, 5rem);
}

.alt-study__summary {
  padding-right: clamp(2rem, 5vw, 5rem);
  border-right: 1px solid color-mix(in srgb, var(--study-accent) 28%, transparent);
}

.alt-study__evidence {
  padding-left: clamp(2rem, 5vw, 5rem);
}

.alt-study__summary h3 {
  max-width: 21ch;
  margin: 0;
  color: var(--study-accent);
  font-size: clamp(1.65rem, 2.5vw, 2.35rem);
}

.alt-study__summary > p:not(.alt-kicker, .alt-study__metric, .alt-study__source) {
  max-width: 35rem;
  margin: 1.25rem 0 0;
  line-height: 1.7;
}

.alt-study__metric {
  margin: 0 0 1.8rem;
  color: var(--study-accent);
  font-size: clamp(4.5rem, 8vw, 7rem);
  font-weight: 800;
  line-height: 0.85;
}

.alt-study__metric span {
  font-size: 0.36em;
}

.alt-study__source {
  max-width: 32rem;
  margin: 2rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid color-mix(in srgb, var(--study-accent) 22%, transparent);
  font-size: 0.78rem;
  line-height: 1.55;
}

.alt-study__partner-logo {
  display: block;
  width: min(11rem, 100%);
  height: auto;
  margin-top: 1.4rem;
}

.alt-study-chart__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.alt-study-chart__head p {
  margin: 0;
  color: var(--alt-ink);
  font-weight: 800;
}

.alt-study-chart__head span {
  font-size: 0.78rem;
}

.alt-study-chart__rows {
  display: grid;
  gap: 1.25rem;
}

.alt-study-chart__row {
  display: grid;
  grid-template-columns: 4.7rem minmax(0, 1fr) 5rem;
  align-items: center;
  gap: 1rem;
}

.alt-study-chart__row > span,
.alt-study-chart__row strong {
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}

.alt-study-chart__row strong {
  color: var(--study-accent);
  text-align: right;
}

.alt-study-chart__track {
  height: 0.65rem;
  overflow: hidden;
  border-radius: 2px;
  background: color-mix(in srgb, var(--study-accent) 10%, transparent);
}

.alt-study-chart__track i {
  display: block;
  width: var(--value);
  height: 100%;
  border-radius: inherit;
  background: var(--study-accent);
  transform-origin: left center;
}

.alt-animations .alt-study-chart__track i {
  transform: scaleX(0);
  transition: transform 1.45s cubic-bezier(0.22, 1, 0.36, 1) var(--delay);
}

.alt-animations .alt-study.is-visible .alt-study-chart__track i {
  transform: scaleX(1);
}

.alt-study__quote {
  margin: 2.8rem 0 0;
  padding-left: 1.8rem;
  border-left: 2px solid var(--study-accent);
}

.alt-study__quote:first-child {
  margin-top: 0;
}

.alt-study__quote p {
  margin: 0 0 1.15rem;
  color: var(--study-accent);
  font-family: var(--font-head);
  font-size: 1.08rem;
  line-height: 1.5;
}

.alt-study__quote cite {
  font-size: 0.78rem;
  font-style: normal;
  font-weight: 700;
  line-height: 1.5;
}

.alt-study__note {
  max-width: 54rem;
  margin: -0.6rem 0 0 auto;
  font-size: 0.76rem;
  line-height: 1.6;
  text-align: right;
}

.alt-study__change {
  display: flex;
  align-items: end;
  gap: clamp(1.2rem, 3vw, 2.4rem);
  margin: 2.4rem 0 1.8rem;
}

.alt-study__change div {
  display: grid;
  gap: 0.4rem;
}

.alt-study__change dt {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
}

.alt-study__change dd {
  margin: 0;
  color: var(--study-accent);
  font-size: clamp(2.7rem, 5vw, 4.5rem);
  font-weight: 700;
  line-height: 0.9;
  white-space: nowrap;
}

.alt-study__change sup {
  font-size: 0.5em;
}

.alt-study__change small {
  font-size: 0.22em;
}

.alt-study__change > span {
  padding-bottom: 0.35rem;
  color: var(--study-accent);
  font-size: 1.35rem;
}

.alt-study__comparison {
  margin: 1.4rem 0 0 1.8rem;
  font-size: 0.8rem;
  line-height: 1.6;
}

.alt-study__physics {
  margin-top: 2.7rem;
  padding-top: 2rem;
  border-top: 1px solid color-mix(in srgb, var(--study-accent) 24%, transparent);
}

.alt-study__conductivity {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 1.2rem;
}

.alt-study__conductivity p {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 0 0.45rem;
  margin: 0;
}

.alt-study__conductivity strong {
  color: var(--study-accent);
  font-size: clamp(2.1rem, 3.5vw, 3.4rem);
  line-height: 1;
}

.alt-study__conductivity span,
.alt-study__conductivity i {
  font-size: 0.7rem;
  font-style: normal;
  font-weight: 700;
}

.alt-study__conductivity small {
  grid-column: 1 / -1;
  margin-top: 0.35rem;
  font-size: 0.76rem;
}

.alt-study__physics > p:last-child {
  max-width: 35rem;
  margin: 1.6rem 0 0;
  line-height: 1.6;
}

.alt-study__physics > p:last-child strong {
  color: var(--study-accent);
}

.alt-proof__link {
  display: inline-flex;
  gap: 0.5rem;
  margin-top: 2.4rem;
  color: var(--alt-green);
  font-weight: 700;
  text-decoration: none;
}

.alt-applications {
  overflow: hidden;
  background: var(--alt-bg);
  border-block: 1px solid var(--alt-line);
}

.alt-applications__heading h2 {
  max-width: none;
  font-size: clamp(1.9rem, 2.8vw, 3rem);
  white-space: nowrap;
}

.alt-slider-controls {
  display: flex;
  justify-content: end;
  gap: 0.5rem;
  margin-top: 1.15rem;
}

.alt-slider-controls button {
  width: 2.8rem;
  height: 2.8rem;
  border: 1px solid var(--alt-line);
  border-radius: 50%;
  background: #fff;
  color: var(--alt-ink);
  cursor: pointer;
  font-size: 1.05rem;
  transition: border-color 160ms ease, background-color 160ms ease;
}

.alt-slider-controls button:hover {
  border-color: var(--alt-green);
  background: #f8faf7;
}

.alt-application-track {
  display: grid;
  width: calc(100vw - max(1.25rem, calc((100vw - var(--container)) / 2 + 2.5rem)));
  grid-auto-flow: column;
  grid-auto-columns: 23.5%;
  gap: 1rem;
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}

.alt-application-track::-webkit-scrollbar {
  display: none;
}

.alt-application-track article {
  position: relative;
  min-height: 25rem;
  overflow: hidden;
  border-radius: 6px;
  scroll-snap-align: start;
  background: var(--alt-ink);
}

.alt-application-track img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.alt-application-track article > div {
  position: absolute;
  z-index: 1;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 1.5rem;
  color: #fff;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.82);
}

.alt-application-track p {
  margin: 0;
  font-family: var(--font-head);
  font-size: 1.5rem;
  line-height: 1.08;
}

.alt-application-track span {
  display: block;
  margin-top: 0.6rem;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.86rem;
  line-height: 1.5;
}

.alt-check {
  background: #fff;
}

.alt-check__layout {
  display: grid;
  grid-template-columns: minmax(22rem, 0.85fr) minmax(29rem, 1.15fr);
  gap: clamp(3rem, 9vw, 9rem);
  align-items: start;
}

.alt-check__copy {
  position: sticky;
  top: 8rem;
}

.alt-check__copy h2 {
  max-width: 13ch;
  font-size: clamp(1.85rem, 2.7vw, 2.85rem);
}

.alt-check__copy > p:not(.alt-kicker) {
  max-width: 37rem;
  margin: 1.35rem 0 0;
}

.alt-check__copy ul {
  display: grid;
  gap: 0.7rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.alt-check__copy li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--alt-ink);
  font-weight: 700;
}

.alt-check__copy li::before {
  content: "";
  position: absolute;
  top: 0.68em;
  left: 0;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--alt-green);
}

.alt-check__form {
  display: grid;
  gap: 1.1rem;
  padding: clamp(1.6rem, 4vw, 3rem);
  border: 1px solid var(--alt-line);
  border-radius: 6px;
  background: var(--alt-bg);
}

.alt-check__form-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.alt-check__form-head p {
  margin: 0;
  color: var(--alt-ink);
  font-family: var(--font-head);
  font-size: 1.55rem;
}

.alt-check__form-head span {
  font-size: 0.72rem;
}

.alt-check__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.alt-check__form label {
  display: grid;
  gap: 0.42rem;
  color: var(--alt-ink);
  font-size: 0.8rem;
  font-weight: 700;
}

.alt-check__form input,
.alt-check__form select,
.alt-check__form textarea {
  width: 100%;
  border: 1px solid #cbd2cc;
  border-radius: 4px;
  background: #fff;
  color: var(--alt-ink);
  font: inherit;
  font-size: 0.95rem;
  padding: 0.8rem 0.9rem;
}

.alt-check__form textarea {
  resize: vertical;
}

.alt-check__honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.alt-check__form input:focus,
.alt-check__form select:focus,
.alt-check__form textarea:focus {
  outline: 2px solid rgba(0, 138, 0, 0.24);
  outline-offset: 1px;
}

.alt-check__status,
.alt-check__privacy {
  margin: 0;
  font-size: 0.72rem;
}

.alt-check__status {
  min-height: 1.1rem;
  color: var(--alt-green);
  font-weight: 700;
}

.alt-check__status.is-error {
  color: #9d3f27;
}

.alt-footer {
  border-top: 1px solid var(--alt-line);
  background: #f3f5f2;
  padding-block: clamp(3.8rem, 8vw, 6rem) 1.6rem;
}

.alt-footer__main {
  display: grid;
  grid-template-columns: minmax(18rem, 1.5fr) repeat(3, minmax(8rem, 0.5fr));
  gap: clamp(2rem, 5vw, 5rem);
}

.alt-footer__brand img {
  display: block;
  width: min(16rem, 100%);
  height: auto;
}

.alt-footer__brand > p {
  max-width: 30rem;
  margin: 1.5rem 0 0;
  color: var(--alt-text);
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.65;
  text-transform: none;
}

.alt-footer__brand > .alt-footer__claim {
  margin: 1rem 0 0;
  color: var(--alt-ink);
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1.3;
}

.alt-footer__claim + p {
  margin-top: 0.8rem;
}

.alt-footer__awards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: 1rem;
  width: min(100%, 22rem);
  margin-top: 1.6rem;
}

.alt-footer__awards img {
  width: 100%;
  height: 3.6rem;
  object-fit: contain;
  object-position: left center;
}

.alt-footer__main > div:not(.alt-footer__brand) {
  display: grid;
  align-content: start;
  gap: 0.55rem;
}

.alt-footer__main > div:not(.alt-footer__brand) > p {
  margin: 0 0 0.5rem;
  color: var(--alt-ink);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.alt-footer a,
.alt-footer address {
  color: var(--alt-text);
  font-size: 0.88rem;
  font-style: normal;
  text-decoration: none;
}

.alt-footer address {
  display: grid;
  gap: 0.35rem;
}

.alt-footer a:hover {
  color: var(--alt-green);
}

.alt-footer__base {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 4.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--alt-line);
  font-size: 0.72rem;
}

.alt-footer__base p {
  margin: 0;
}

.alt-footer__base div {
  display: flex;
  gap: 1.1rem;
}

.alt-animations [data-alt-reveal] {
  opacity: 0;
  transform: translateY(1.2rem);
  transition: opacity 650ms ease, transform 650ms cubic-bezier(0.22, 1, 0.36, 1);
}

.alt-animations [data-alt-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.alt-animations section:target [data-alt-reveal] {
  opacity: 1;
  transform: none;
  transition: none;
}

.alt-press {
  overflow: hidden;
  border-block: 1px solid var(--alt-line);
  background: #f7f9f8;
}

.alt-press__layout {
  display: grid;
  grid-template-columns: minmax(250px, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(3rem, 7vw, 8rem);
  align-items: center;
}

.alt-press__intro h2 {
  max-width: 10em;
  margin-bottom: 1.35rem;
}

.alt-press__intro > p:not(.alt-kicker) {
  max-width: 31rem;
  color: var(--alt-muted);
  line-height: 1.65;
}

.alt-press__all {
  display: inline-flex;
  gap: 0.65rem;
  align-items: center;
  margin-top: 1.6rem;
  color: var(--alt-ink);
  font-weight: 700;
  text-decoration: none;
}

.alt-press__all:hover,
.alt-press__all:focus-visible {
  text-decoration: none;
}

.alt-press__all span {
  color: var(--alt-green);
  transition: transform 180ms ease;
}

.alt-press__all:hover span { transform: translateX(4px); }

.alt-press__covers {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(0.75rem, 1.8vw, 1.5rem);
  align-items: end;
}

.alt-press__covers a {
  display: block;
  overflow: hidden;
  aspect-ratio: 3 / 4.2;
  border: 1px solid color-mix(in srgb, var(--alt-ink) 14%, transparent);
  background: #fff;
  box-shadow: 0 1.2rem 2.6rem rgba(27, 45, 38, 0.1);
  transition: transform 260ms ease, box-shadow 260ms ease;
}

.alt-press__covers a:nth-child(2),
.alt-press__covers a:nth-child(4) { transform: translateY(1.2rem); }

.alt-press__covers a:hover {
  transform: translateY(-0.4rem);
  box-shadow: 0 1.6rem 3.2rem rgba(27, 45, 38, 0.16);
}

.alt-press__covers a:nth-child(2):hover,
.alt-press__covers a:nth-child(4):hover { transform: translateY(0.8rem); }

.alt-press__covers img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

@media (max-width: 1100px) {
  .alt-nav .nav__links {
    gap: 0.7rem;
  }

  .alt-nav .nav__links > .nav__item > a {
    font-size: 0.78rem;
  }

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

  .alt-module-chain::before {
    content: none;
  }

  .alt-module::before {
    content: none;
  }

  .alt-application-track {
    grid-auto-columns: 28%;
  }
}

@media (max-width: 896px) {
  .alt-nav .nav__menu-toggle {
    position: relative;
    gap: 0;
  }

  .alt-nav .nav__menu-toggle span {
    position: absolute;
    left: 50%;
    top: 50%;
    margin: 0;
    transform: translate(-50%, -0.32rem);
  }

  .alt-nav .nav__menu-toggle span:nth-child(2) {
    transform: translate(-50%, 0);
  }

  .alt-nav .nav__menu-toggle span:nth-child(3) {
    transform: translate(-50%, 0.32rem);
  }

  .alt-nav .nav__menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translate(-50%, -50%) rotate(45deg);
  }

  .alt-nav .nav__menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .alt-nav .nav__menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translate(-50%, -50%) rotate(-45deg);
  }

  .alt-heading--split,
  .alt-challenges__layout,
  .alt-check__layout {
    grid-template-columns: 1fr;
  }

  .alt-heading--split {
    gap: 1.5rem;
  }

  .alt-applications__heading h2 {
    white-space: normal;
  }

  .alt-challenges__visual,
  .alt-check__copy {
    position: static;
  }

  .alt-circuit {
    grid-template-columns: 0.75fr 1.25fr;
  }

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

  .alt-test-flow li:nth-child(3n + 1) {
    border-left: 0;
  }

  .alt-test-flow li:nth-child(2n + 1) {
    border-left: 1px solid var(--alt-line);
  }

  .alt-study {
    grid-template-columns: 1fr;
  }

  .alt-study__summary {
    padding-right: 0;
    border-right: 0;
    border-bottom: 1px solid color-mix(in srgb, var(--study-accent) 28%, transparent);
  }

  .alt-study__evidence {
    padding-left: 0;
  }

  .alt-application-track {
    grid-auto-columns: 47%;
  }

  .alt-press__layout {
    grid-template-columns: 1fr;
  }

  .alt-press__intro h2 { max-width: 15em; }

  .alt-footer__main {
    grid-template-columns: 1.4fr repeat(2, 0.7fr);
  }

  .alt-footer__main > div:last-child {
    grid-column: 2 / -1;
  }
}

@media (max-width: 680px) {
  .alt-home main p:not(.alt-kicker):not(.alt-hero__eyebrow) {
    -webkit-hyphens: none;
    hyphens: none;
    overflow-wrap: normal;
  }

  .alt-home h2 {
    font-size: clamp(1.7rem, 7.5vw, 2.2rem);
  }

  .alt-section {
    padding-block: 4.5rem;
  }

  .alt-hero {
    min-height: 100svh;
  }

  .alt-hero__video {
    object-fit: cover;
    object-position: 24% center;
  }

  .alt-hero__inner {
    padding-block: 6rem 3.5rem;
  }

  .alt-hero h1 {
    max-width: 100%;
    font-size: 1.95rem;
  }

  .alt-hero h1 strong {
    font-size: 1em;
  }

  .alt-hero__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .alt-principles__inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding-block: 0.65rem;
  }

  .alt-principles span {
    min-height: 2.8rem;
    display: grid;
    place-items: center;
    padding-inline: 0.5rem;
    font-size: 0.6rem;
  }

  .alt-principles span:nth-child(3) {
    border-left: 0;
  }

  .alt-principles span:nth-child(n + 3) {
    border-top: 1px solid var(--alt-line);
  }

  .alt-challenges__visual {
    grid-template-columns: 1fr;
  }

  .alt-module-chain,
  .alt-test-flow {
    grid-template-columns: 1fr;
  }

  .alt-module {
    min-height: auto;
  }

  .alt-test-flow li,
  .alt-test-flow li:nth-child(3n + 1),
  .alt-test-flow li:nth-child(2n + 1) {
    min-height: auto;
    border-left: 1px solid var(--alt-line);
  }

  .alt-test-flow li::before {
    margin-bottom: 1.4rem;
  }

  .alt-performance__action,
  .alt-check__form-head,
  .alt-footer__base {
    align-items: stretch;
    flex-direction: column;
  }

  .alt-circuit {
    grid-template-columns: 1fr;
  }

  .alt-circuit__image {
    height: 23rem;
  }

  .alt-circuit__flow {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .alt-circuit__flow i {
    display: none;
  }

  .alt-kpi-framework {
    grid-template-columns: 1fr;
  }

  .alt-kpi-framework__footer {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .alt-kpi-framework__footer i {
    display: none;
  }

  .alt-study__metric {
    font-size: 4.5rem;
  }

  .alt-study-chart__row {
    grid-template-columns: 3.8rem minmax(0, 1fr) 4.25rem;
    gap: 0.65rem;
  }

  .alt-study__quote {
    padding-left: 1.2rem;
  }

  .alt-study__note {
    margin-top: -0.4rem;
    text-align: left;
  }

  .alt-study__change {
    gap: 0.85rem;
  }

  .alt-study__change dd {
    font-size: 2.7rem;
  }

  .alt-study__conductivity {
    gap: 0.75rem;
  }

  .alt-application-track {
    grid-auto-columns: 84%;
  }

  .alt-application-track article {
    min-height: 30rem;
  }

  .alt-press__covers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 29rem;
  }

  .alt-press__covers a:nth-child(2),
  .alt-press__covers a:nth-child(4),
  .alt-press__covers a:nth-child(2):hover,
  .alt-press__covers a:nth-child(4):hover { transform: none; }

  .alt-check__row,
  .alt-footer__main {
    grid-template-columns: 1fr;
  }

  .alt-footer__main > div:last-child {
    grid-column: auto;
  }

  .alt-footer__base {
    gap: 0.7rem;
  }
}

@media (max-width: 380px) {
  .alt-circuit__copy h3 {
    font-size: 1.6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .alt-home *,
  .alt-home *::before,
  .alt-home *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .alt-animations [data-alt-reveal] {
    opacity: 1;
    transform: none;
  }
}