:root {
  --ink: #14201f;
  --ink-soft: #4c5d58;
  --surface: #f7faf8;
  --surface-strong: #ffffff;
  --line: #dfe8e4;
  --mist: #eef5f2;
  --jade: #0f9d78;
  --jade-dark: #08775f;
  --aqua: #b8f2df;
  --shadow: 0 24px 70px rgba(20, 32, 31, 0.14);
  --max-width: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  overflow-x: hidden;
}

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

img,
picture {
  max-width: 100%;
}

img {
  height: auto;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(var(--max-width), calc(100% - 32px));
  margin: 16px auto 0;
  padding: 12px 14px 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 8px;
  background: rgba(247, 250, 248, 0.78);
  box-shadow: 0 16px 48px rgba(20, 32, 31, 0.08);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  transition: background 200ms ease, border-color 200ms ease;
}

.site-header.is-scrolled {
  border-color: rgba(223, 232, 228, 0.9);
  background: rgba(255, 255, 255, 0.92);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-logo {
  display: block;
  width: 154px;
  height: auto;
}

.brand-logo-footer {
  width: 148px;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  color: white;
  background: linear-gradient(145deg, var(--jade), var(--jade-dark));
  font-size: 18px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  padding: 10px 14px;
  border-radius: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 650;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  background: var(--mist);
  outline: none;
}

.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 9px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px 0;
  background: var(--ink);
}

.hero {
  position: relative;
  display: grid;
  min-height: min(760px, 82vh);
  align-items: center;
  overflow: hidden;
  padding: 112px max(24px, calc((100vw - var(--max-width)) / 2)) 48px;
  background:
    radial-gradient(circle at 18% 20%, rgba(184, 242, 223, 0.58), transparent 34%),
    radial-gradient(circle at 76% 32%, rgba(15, 157, 120, 0.18), transparent 30%),
    linear-gradient(135deg, #fbfdfc 0%, #edf6f2 52%, #dcefe9 100%);
}

.hero-image {
  position: absolute;
  z-index: 0;
  top: 50%;
  right: max(-120px, calc((100vw - var(--max-width)) / 2 - 130px));
  width: min(58vw, 820px);
  height: min(34vw, 430px);
  border-radius: 8px;
  background-image: url("assets/hero-airflow.jpg");
  background-image: image-set(url("assets/hero-airflow.webp") type("image/webp"), url("assets/hero-airflow.jpg") type("image/jpeg"));
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  opacity: 0.46;
  filter: saturate(0.9) contrast(0.96);
  transform: translateY(-45%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 20%, black 78%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0%, black 20%, black 78%, transparent 100%);
}

.science-hero {
  position: relative;
  display: grid;
  min-height: min(730px, 78vh);
  align-items: center;
  overflow: hidden;
  padding: 118px max(24px, calc((100vw - var(--max-width)) / 2)) 58px;
  background:
    radial-gradient(circle at 18% 24%, rgba(184, 242, 223, 0.72), transparent 35%),
    radial-gradient(circle at 78% 28%, rgba(15, 157, 120, 0.2), transparent 34%),
    linear-gradient(135deg, #fbfdfc 0%, #edf6f2 56%, #dbeee8 100%);
}

.hero-canvas,
.hero-noise {
  position: absolute;
  inset: 0;
}

.hero-canvas {
  z-index: 1;
  opacity: 0.72;
}

.hero-noise {
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.45) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.45) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: linear-gradient(90deg, transparent, black 24%, black 76%, transparent);
  mask-image: linear-gradient(90deg, transparent, black 24%, black 76%, transparent);
}

.hero-content {
  position: relative;
  z-index: 3;
  min-width: 0;
  max-width: 760px;
}

.science-hero-content {
  position: relative;
  z-index: 3;
  min-width: 0;
  max-width: 870px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--jade-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  max-width: 100%;
  margin-top: 0;
}

h1,
h2,
h3 {
  hyphens: none;
  overflow-wrap: normal;
  word-break: normal;
  text-wrap: balance;
}

h1 {
  max-width: 760px;
  margin-bottom: 28px;
  font-size: clamp(44px, 7.5vw, 96px);
  line-height: 1.02;
  letter-spacing: 0;
}

.science-hero h1 {
  max-width: 960px;
}

h2 {
  margin-bottom: 24px;
  font-size: clamp(32px, 4.4vw, 56px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 21px;
  line-height: 1.18;
}

.hero-copy {
  max-width: 660px;
  color: var(--ink-soft);
  font-size: clamp(18px, 2vw, 22px);
}

.science-hero-content p:not(.eyebrow) {
  max-width: 720px;
  color: var(--ink-soft);
  font-size: clamp(18px, 2vw, 23px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  padding: 0 20px;
  font-weight: 800;
}

.button-primary {
  color: white;
  background: var(--ink);
}

.button-secondary {
  border: 1px solid rgba(20, 32, 31, 0.18);
  background: rgba(255, 255, 255, 0.62);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  outline: none;
}

.hero-panel {
  position: absolute;
  z-index: 3;
  right: max(24px, calc((100vw - var(--max-width)) / 2));
  bottom: 70px;
  width: min(330px, calc(100% - 48px));
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.science-hero-card {
  position: absolute;
  z-index: 3;
  right: max(24px, calc((100vw - var(--max-width)) / 2));
  bottom: 82px;
  width: min(370px, calc(100% - 48px));
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.66);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.metric-label {
  display: block;
  margin-bottom: 10px;
  color: var(--jade-dark);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-panel strong {
  display: block;
  margin-bottom: 8px;
  font-size: 24px;
  line-height: 1.1;
}

.science-hero-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 26px;
  line-height: 1.08;
}

.hero-panel p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.science-hero-card p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.section,
.section-band,
.proof-strip,
.site-footer {
  padding-right: max(24px, calc((100vw - var(--max-width)) / 2));
  padding-left: max(24px, calc((100vw - var(--max-width)) / 2));
}

.section,
.section-band {
  padding-top: 72px;
  padding-bottom: 72px;
}

.section-band {
  background: var(--surface-strong);
}

.intro {
  padding-bottom: 52px;
}

#science.section {
  padding-top: 52px;
  padding-bottom: 48px;
}

.ecosystems {
  padding-top: 50px;
  padding-bottom: 56px;
}

.lab.section {
  padding-top: 56px;
  padding-bottom: 60px;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 44px;
  align-items: start;
}

.intro-grid p,
.section-heading p,
.lab-copy p {
  color: var(--ink-soft);
  font-size: 18px;
}

.section-heading {
  min-width: 0;
  max-width: 760px;
  margin-bottom: 32px;
}

.section-heading h2 + p {
  margin-top: 0;
}

.science-principle .section-heading {
  max-width: 850px;
}

.ecosystems-layout,
.science-principle-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(320px, 0.72fr);
  gap: 36px;
  align-items: end;
  margin-bottom: 34px;
}

.ecosystems-layout .section-heading,
.science-principle-layout .section-heading {
  margin-bottom: 0;
}

.feature-image {
  position: relative;
  overflow: hidden;
  margin: 0;
  min-height: 280px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  box-shadow: 0 18px 48px rgba(20, 32, 31, 0.08);
}

.feature-image::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(20, 32, 31, 0.12));
}

.feature-image img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
}

.lifestyle-image {
  aspect-ratio: 3 / 2;
  background-image: url("assets/lifestyle-clean-air.jpg");
  background-image: image-set(url("assets/lifestyle-clean-air.webp") type("image/webp"), url("assets/lifestyle-clean-air.jpg") type("image/jpeg"));
}

.lifestyle-image img {
  aspect-ratio: 3 / 2;
}

.science-filter-image {
  aspect-ratio: 4 / 3;
  background-image: url("assets/science-filter-cutaway.jpg");
  background-image: image-set(url("assets/science-filter-cutaway.webp") type("image/webp"), url("assets/science-filter-cutaway.jpg") type("image/jpeg"));
}

.science-filter-image img {
  aspect-ratio: 4 / 3;
}

.pillar-grid,
.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.comparison-grid article {
  min-height: 240px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    radial-gradient(circle at 18% 16%, rgba(184, 242, 223, 0.8), transparent 28%),
    #ffffff;
}

.comparison-grid span,
.flow-diagram span {
  display: inline-flex;
  margin-bottom: 30px;
  color: var(--jade-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.comparison-grid p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.science-flow {
  background:
    linear-gradient(180deg, rgba(247, 250, 248, 0) 0%, rgba(238, 245, 242, 0.7) 100%);
}

.flow-diagram {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  background: var(--ink);
  color: white;
}

.flow-diagram div {
  position: relative;
  min-height: 220px;
  padding: 26px;
  background:
    radial-gradient(circle at 22% 20%, rgba(15, 157, 120, 0.32), transparent 28%),
    rgba(255, 255, 255, 0.04);
}

.flow-diagram div:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -11px;
  z-index: 2;
  width: 22px;
  height: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  border-right: 1px solid rgba(255, 255, 255, 0.22);
  background: var(--ink);
  transform: translateY(-50%) rotate(45deg);
}

.flow-diagram span {
  color: var(--aqua);
}

.flow-diagram strong {
  display: block;
  margin-bottom: 12px;
  font-size: 28px;
  line-height: 1.05;
}

.flow-diagram p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.72);
}

.deep-science {
  display: grid;
  gap: 1px;
  padding-top: 0;
  padding-bottom: 0;
  background: var(--line);
}

.science-detail {
  display: grid;
  grid-template-columns: minmax(360px, 0.95fr) minmax(360px, 0.9fr);
  gap: 48px;
  align-items: start;
  padding: 72px max(24px, calc((100vw - var(--max-width)) / 2));
  background: white;
}

.science-detail-lead {
  min-width: 0;
}

.science-detail h2 {
  max-width: 640px;
  font-size: clamp(32px, 4vw, 54px);
  line-height: 1.08;
  overflow-wrap: normal;
  word-break: normal;
}

.science-detail .eyebrow {
  letter-spacing: 0.06em;
  overflow-wrap: normal;
  text-wrap: pretty;
  word-break: normal;
}

.science-copy {
  min-width: 0;
}

.science-detail-media {
  margin: 26px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    radial-gradient(circle at 42% 32%, rgba(184, 242, 223, 0.52), transparent 32%),
    var(--surface);
  box-shadow: 0 18px 54px rgba(20, 32, 31, 0.08);
}

.science-detail-media picture,
.science-detail-media img {
  display: block;
  width: 100%;
}

.science-detail-media img {
  aspect-ratio: 16 / 10;
  height: auto;
  object-fit: cover;
}

.science-copy p {
  color: var(--ink-soft);
  font-size: 18px;
}

.science-list {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.science-list li {
  position: relative;
  padding: 14px 18px 14px 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink-soft);
  font-weight: 700;
}

.science-list li::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 18px;
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--jade);
}

.validation {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.8fr);
  gap: 48px;
  align-items: center;
}

.validation-panel p:not(.eyebrow) {
  color: var(--ink-soft);
  font-size: 18px;
}

.validation-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.validation-steps span {
  display: grid;
  min-height: 104px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    radial-gradient(circle at 24% 20%, rgba(184, 242, 223, 0.82), transparent 28%),
    white;
  color: var(--ink);
  font-size: 20px;
  font-weight: 800;
}

.pillar,
.ecosystem-card {
  min-height: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-strong);
}

.pillar {
  padding: 26px;
}

.pillar-media {
  height: 128px;
  margin: -10px -10px 18px;
  overflow: hidden;
  border-radius: 8px;
  background-color: var(--mist);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.pillar-media-fluid {
  background-image: url("assets/pillar-fluid-dynamics.jpg");
  background-image: image-set(url("assets/pillar-fluid-dynamics.webp") type("image/webp"), url("assets/pillar-fluid-dynamics.jpg") type("image/jpeg"));
}

.pillar-media-baffle {
  background-image: url("assets/pillar-baffle-architecture.jpg");
  background-image: image-set(url("assets/pillar-baffle-architecture.webp") type("image/webp"), url("assets/pillar-baffle-architecture.jpg") type("image/jpeg"));
}

.pillar-media-material {
  background-image: url("assets/pillar-material-science.jpg");
  background-image: image-set(url("assets/pillar-material-science.webp") type("image/webp"), url("assets/pillar-material-science.jpg") type("image/jpeg"));
}

.pillar-index {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--jade-dark);
  font-size: 13px;
  font-weight: 800;
}

.pillar p,
.ecosystem-card p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.ecosystem-card {
  position: relative;
  display: flex;
  min-height: 220px;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  padding: 24px;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.ecosystem-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 24%, rgba(184, 242, 223, 0.9), transparent 26%),
    linear-gradient(145deg, rgba(15, 157, 120, 0.16), rgba(255, 255, 255, 0) 58%);
  opacity: 0.78;
}

.ecosystem-card > * {
  position: relative;
  z-index: 1;
}

.ecosystem-card span {
  margin-bottom: auto;
  color: var(--jade-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ecosystem-card:hover,
.ecosystem-card:focus-visible {
  border-color: rgba(15, 157, 120, 0.42);
  box-shadow: 0 22px 64px rgba(20, 32, 31, 0.1);
  transform: translateY(-4px);
  outline: none;
}

.product-hero,
.product-safety {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.72fr);
  gap: 54px;
  align-items: center;
}

.product-hero-copy {
  min-width: 0;
}

.product-hero-copy p {
  max-width: 700px;
  color: var(--ink-soft);
  font-size: 18px;
}

.product-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.product-badges span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 8px 13px;
  border: 1px solid rgba(8, 119, 95, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--jade-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.product-visual,
.product-hero-card {
  display: block;
  min-width: 0;
  overflow: hidden;
  border: 0;
  border-radius: 8px;
  background:
    radial-gradient(circle at 52% 42%, rgba(15, 157, 120, 0.16), transparent 38%),
    transparent;
  box-shadow: var(--shadow);
}

.product-visual {
  transition: transform 180ms ease, border-color 180ms ease;
}

.product-visual:hover,
.product-visual:focus-visible {
  border-color: rgba(15, 157, 120, 0.44);
  outline: none;
  transform: translateY(-4px);
}

.product-visual img,
.product-hero-card img,
.product-hero-card picture,
.instruction-gallery picture {
  display: block;
  width: 100%;
  max-width: 100%;
}

.product-hero-card img {
  height: auto;
}

.product-hero {
  min-height: min(760px, 82vh);
  padding: 128px max(24px, calc((100vw - var(--max-width)) / 2)) 72px;
  background:
    radial-gradient(circle at 18% 20%, rgba(184, 242, 223, 0.58), transparent 34%),
    radial-gradient(circle at 82% 34%, rgba(15, 157, 120, 0.18), transparent 32%),
    linear-gradient(135deg, #fbfdfc 0%, #edf6f2 54%, #dcefe9 100%);
}

.product-hero h1 {
  max-width: 760px;
  font-size: clamp(58px, 9vw, 124px);
  line-height: 0.92;
}

.product-hero-card {
  margin: 0;
}

.product-overview .section-heading {
  max-width: 850px;
}

.product-spec-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.product-spec-grid article {
  min-height: 230px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
}

.product-spec-grid span {
  display: inline-flex;
  margin-bottom: 24px;
  color: var(--jade-dark);
  font-size: 13px;
  font-weight: 800;
}

.product-spec-grid p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.instruction-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.instruction-gallery figure {
  margin: 0;
  min-width: 0;
  overflow: hidden;
  border: 0;
  border-radius: 8px;
  background: transparent;
  box-shadow: 0 18px 54px rgba(20, 32, 31, 0.08);
}

.instruction-gallery img {
  display: block;
  width: 100%;
  height: auto;
}

.instruction-gallery figcaption {
  padding: 14px 18px 18px;
  color: var(--ink-soft);
  font-weight: 700;
}

.product-safety {
  align-items: start;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--ink);
  color: white;
}

.proof-strip div {
  padding: 28px 26px;
  background: rgba(255, 255, 255, 0.04);
}

.proof-strip strong,
.proof-strip span {
  display: block;
}

.proof-strip strong {
  margin-bottom: 6px;
  font-size: 18px;
}

.proof-strip span {
  color: rgba(255, 255, 255, 0.72);
}

.lab {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.8fr);
  gap: 52px;
  align-items: center;
}

.lab-list {
  display: grid;
  gap: 12px;
}

.lab-list a {
  display: block;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  color: var(--ink-soft);
  font-weight: 700;
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, color 180ms ease;
}

.lab-list a:hover,
.lab-list a:focus-visible {
  border-color: rgba(8, 119, 95, 0.28);
  color: var(--ink);
  transform: translateY(-2px);
}

.science-principle,
.science-flow,
.science-detail,
.validation {
  scroll-margin-top: 96px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 34px;
  padding-bottom: 34px;
  border-top: 1px solid var(--line);
  background: white;
}

.site-footer p {
  margin: 0;
  color: var(--ink-soft);
  text-align: right;
}

@media (max-width: 1040px) {
  .intro-grid,
  .product-hero,
  .product-safety,
  .science-detail,
  .validation,
  .ecosystems-layout,
  .science-principle-layout {
    grid-template-columns: 1fr;
  }

  .science-detail {
    gap: 26px;
  }

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

  .feature-image img {
    min-height: 250px;
  }
}

@media (max-width: 860px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: white;
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    padding: 13px 14px;
  }

  .hero {
    min-height: 680px;
    padding-top: 96px;
    align-items: start;
  }

  .hero-panel {
    right: 24px;
    bottom: 34px;
  }

  .science-hero {
    min-height: 680px;
    padding-top: 96px;
    align-items: start;
  }

  .science-hero-card {
    right: 24px;
    bottom: 34px;
  }

  .hero-image {
    top: auto;
    right: -150px;
    bottom: 120px;
    width: 760px;
    height: 406px;
    opacity: 0.28;
    transform: none;
  }

  .intro-grid,
  .pillar-grid,
  .ecosystem-grid,
  .proof-strip,
  .lab,
  .comparison-grid,
  .flow-diagram,
  .science-detail,
  .validation {
    grid-template-columns: 1fr;
  }

  .section,
  .section-band {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .product-hero {
    min-height: auto;
    padding-top: 108px;
    padding-bottom: 52px;
  }

  .intro {
    padding-bottom: 38px;
  }

  #science.section {
    padding-top: 38px;
    padding-bottom: 36px;
  }

  .ecosystems {
    padding-top: 40px;
    padding-bottom: 42px;
  }

  .lab.section {
    padding-top: 44px;
    padding-bottom: 46px;
  }

  .deep-science {
    padding-top: 0;
    padding-bottom: 0;
  }

  .science-detail {
    gap: 22px;
    padding-top: 58px;
    padding-bottom: 58px;
  }

  .flow-diagram div:not(:last-child)::after {
    top: auto;
    right: auto;
    bottom: -11px;
    left: 50%;
    transform: translateX(-50%) rotate(135deg);
  }

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

  .site-footer p {
    text-align: left;
  }
}

@media (max-width: 560px) {
  h1 {
    font-size: clamp(42px, 12vw, 52px);
    line-height: 1.04;
  }

  h2 {
    font-size: clamp(27px, 7.4vw, 31px);
    line-height: 1.14;
  }

  h1,
  h2,
  h3,
  p {
    overflow-wrap: break-word;
    text-wrap: auto;
  }

  .eyebrow,
  .section-kicker {
    max-width: 330px;
    letter-spacing: 0.06em;
    line-height: 1.35;
    white-space: normal;
  }

  .site-header {
    width: calc(100% - 24px);
    margin-top: 12px;
  }

  .brand-logo {
    width: 132px;
  }

  .hero {
    display: flex;
    min-height: auto;
    flex-direction: column;
    gap: 20px;
    padding-right: 18px;
    padding-bottom: 28px;
    padding-left: 18px;
  }

  .science-hero {
    display: flex;
    min-height: auto;
    flex-direction: column;
    gap: 20px;
    padding-right: 18px;
    padding-bottom: 28px;
    padding-left: 18px;
  }

  .hero-content,
  .science-hero-content,
  .product-hero-copy,
  .section-heading,
  .intro-grid > *,
  .science-principle-layout > *,
  .ecosystems-layout > *,
  .lab-copy,
  .science-copy {
    width: 100%;
    min-width: 0;
    max-width: min(310px, calc(100vw - 64px));
  }

  .section-heading h2,
  .intro-grid h2,
  .lab-copy h2,
  .product-overview h2,
  .validation-panel h2,
  .science-detail h2 {
    max-width: min(300px, calc(100vw - 68px));
    overflow-wrap: break-word;
    text-wrap: auto;
    word-break: normal;
  }

  .product-hero-copy h1,
  .science-hero-content h1 {
    max-width: min(340px, calc(100vw - 42px));
  }

  .hero-copy,
  .science-hero-content p:not(.eyebrow),
  .product-hero-copy p,
  .intro-grid p,
  .section-heading p,
  .lab-copy p,
  .science-copy p,
  .validation-panel p:not(.eyebrow),
  .science-hero-card p,
  .hero-panel p {
    max-width: min(306px, calc(100vw - 68px));
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero-panel {
    position: relative;
    left: auto;
    right: auto;
    bottom: auto;
    width: auto;
    max-width: none;
    margin-top: 0;
    padding: 18px;
  }

  .science-hero-card {
    position: relative;
    left: auto;
    right: auto;
    bottom: auto;
    width: auto;
    max-width: min(330px, calc(100vw - 36px));
    margin-top: 0;
    padding: 18px;
  }

  .section,
  .section-band,
  .proof-strip,
  .site-footer,
  .product-hero,
  .science-detail {
    padding-right: 18px;
    padding-left: 18px;
  }

  .validation-steps {
    grid-template-columns: 1fr;
  }

  .hero-image {
    right: 0;
    bottom: 150px;
    width: 100%;
    height: 250px;
    opacity: 0.2;
  }

  .feature-image {
    min-height: 0;
  }

  .product-spec-grid,
  .instruction-gallery {
    grid-template-columns: 1fr;
  }

  .product-actions {
    flex-direction: column;
  }

  .product-hero-copy,
  .product-hero-card,
  .instruction-gallery figure {
    width: 100%;
    max-width: calc(100vw - 36px);
  }

  .product-hero-card {
    justify-self: start;
    width: min(300px, calc(100vw - 72px));
    max-width: min(300px, calc(100vw - 72px));
  }

  .pillar-media {
    height: 118px;
    margin-bottom: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}