:root {
  --paper: #f8f4ee;
  --paper-strong: #ffffff;
  --panel: #ffffff;
  --panel-strong: #ffffff;
  --ink: #121212;
  --ink-soft: #575757;
  --line: rgba(18, 18, 18, 0.09);
  --line-strong: rgba(18, 18, 18, 0.16);
  --gold: #b89c66;
  --gold-deep: #9b804c;
  --gold-soft: #efe5d5;
  --sage: #9cae97;
  --sage-deep: #72866d;
  --sage-soft: #e8f0e8;
  --mist: #e7f1ef;
  --foam: #f7fbf8;
  --rose: #cf5b86;
  --rose-soft: #f6d7e2;
  --navy: #202e3d;
  --black: #050505;
  --shadow: 0 24px 60px rgba(18, 18, 18, 0.08);
  --shadow-soft: 0 10px 28px rgba(18, 18, 18, 0.05);
  --radius-xl: 22px;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 999px;
  --container: min(1180px, calc(100vw - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Manrope", "PingFang SC", "Hiragino Sans GB", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(156, 174, 151, 0.22), transparent 30%),
    radial-gradient(circle at 86% 8%, rgba(255, 249, 239, 0.92), transparent 22%),
    radial-gradient(circle at 76% 82%, rgba(184, 156, 102, 0.1), transparent 26%),
    linear-gradient(180deg, #fcfdfb 0%, #f1f7f3 40%, #f6f1e8 100%);
}

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

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

p,
li {
  color: var(--ink-soft);
  line-height: 1.68;
}

.page-shell {
  min-height: 100vh;
  overflow: hidden;
}

.announcement-bar {
  padding: 11px 24px;
  background: var(--black);
  color: rgba(244, 234, 216, 0.88);
  text-align: center;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.site-header {
  position: sticky;
  top: 12px;
  z-index: 20;
  width: var(--container);
  margin: 16px auto 0;
  padding: 14px 18px;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-soft);
}

.brand-mark {
  display: inline-flex;
  flex-direction: column;
  gap: 2px;
}

.brand-mark__eyebrow,
.eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-deep);
}

.brand-mark strong {
  font-size: 1.06rem;
  letter-spacing: 0.01em;
}

.brand-logo {
  width: 148px;
  height: auto;
}

.brand-mark__sub {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(18, 18, 18, 0.56);
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.site-nav a,
.header-cta,
.button {
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.site-nav a {
  position: relative;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--gold), transparent);
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 8px;
  font-weight: 700;
  border: 1px solid transparent;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
}

.header-cta,
.button--primary {
  background: var(--black);
  color: #fffdf8;
  box-shadow: 0 12px 30px rgba(18, 18, 18, 0.12);
}

.button--ghost {
  border-color: var(--line-strong);
  background: #ffffff;
  color: var(--ink);
}

.header-cta:hover,
.button:hover {
  transform: translateY(-2px);
}

.menu-toggle {
  display: none;
  padding: 0;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 180ms ease, opacity 180ms ease;
}

.hero,
.section {
  width: var(--container);
  margin-inline: auto;
}

.hero {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  align-items: center;
  gap: 56px;
  padding: 58px 0 46px;
}

.hero-copy {
  max-width: 620px;
}

.hero-copy h1,
.section-heading h2,
.story-card h3,
.product-card h3,
.future-card h3,
.brand-card h3,
.pathway-card h3,
.research-card h3,
.contact-card h3,
.science-card h3,
.hub-card h3,
.standard-card h3 {
  margin: 0;
  color: var(--ink);
}

.hero-copy h1,
.section-heading h2 {
  font-family: "Noto Serif SC", "Cormorant Garamond", serif;
  font-weight: 600;
  letter-spacing: -0.04em;
}

.hero-copy h1 {
  margin-top: 20px;
  font-size: clamp(3rem, 5vw, 5.2rem);
  line-height: 1.06;
}

.hero-lead {
  margin: 22px 0 0;
  max-width: 560px;
  color: rgba(18, 18, 18, 0.68);
  font-size: 1.02rem;
  line-height: 1.9;
}

.hero-signature {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px 8px 10px;
  border: 1px solid rgba(184, 156, 102, 0.22);
  border-radius: 999px;
  background: rgba(247, 251, 248, 0.96);
}

.hero-signature img {
  width: 22px;
  height: 22px;
}

.hero-signature span {
  color: var(--gold-deep);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero-credentials {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 30px 0 0;
}

.hero-credential {
  padding: 16px 16px 18px;
  border: 1px solid rgba(18, 18, 18, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px);
}

.hero-credential span {
  display: block;
  color: var(--gold-deep);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-credential strong {
  display: block;
  margin-top: 8px;
  color: var(--ink);
  font-size: 0.94rem;
  font-weight: 800;
  line-height: 1.5;
}

.hero-footnote {
  margin: 18px 0 0;
  color: rgba(18, 18, 18, 0.52);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-visual {
  position: relative;
  min-height: 620px;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 72px 18px 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    radial-gradient(circle at top left, rgba(156, 174, 151, 0.16), transparent 28%),
    radial-gradient(circle at bottom right, rgba(184, 156, 102, 0.14), transparent 26%),
    linear-gradient(180deg, #f6faf7 0%, #edf4f0 50%, #f8f4ec 100%);
}

.hero-visual::after {
  content: "";
  position: absolute;
  right: 38px;
  bottom: 40px;
  width: 120px;
  height: 120px;
  background: url("./assets/logo/pure-element-leaf.png") center / contain no-repeat;
  opacity: 0.08;
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(24px);
  opacity: 0.72;
}

.glow--gold {
  inset: 9% 20% auto auto;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(207, 170, 107, 0.42) 0%, rgba(207, 170, 107, 0.05) 72%);
}

.glow--sage {
  inset: auto auto 12% 8%;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(156, 174, 151, 0.34) 0%, rgba(156, 174, 151, 0.06) 72%);
}

.hero-showcase {
  position: absolute;
  inset: 56px 24px 36px;
  overflow: hidden;
  border: 1px solid rgba(18, 18, 18, 0.07);
  border-radius: 24px;
  background: var(--foam);
  box-shadow: 0 28px 60px rgba(79, 92, 84, 0.12);
  z-index: 2;
}

.hero-showcase::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 16% 18%, rgba(255, 255, 255, 0.6), transparent 24%),
    linear-gradient(180deg, rgba(236, 244, 239, 0.1), transparent 34%, rgba(248, 244, 238, 0.18) 100%);
  z-index: 1;
  pointer-events: none;
}

.hero-showcase::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.12)),
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.22), transparent 22%);
  z-index: 2;
  pointer-events: none;
}

.hero-natural-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.brand-tag,
.product-badge,
.future-card__eyebrow,
.contact-card__label {
  display: inline-flex;
  width: fit-content;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--gold-soft);
  color: var(--gold-deep);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section {
  padding: 58px 0 88px;
}

.trust-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 0 0 76px;
}

.band-item {
  padding: 28px 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(245, 249, 246, 0.92));
}

.band-item__value {
  display: block;
  color: var(--ink);
  font-size: 1.25rem;
  font-weight: 800;
}

.band-item__label {
  display: block;
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.section-heading {
  display: grid;
  gap: 18px;
  max-width: 780px;
  position: relative;
  padding-top: 26px;
}

.section-heading::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 72px;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
}

.section-heading h2 {
  font-size: clamp(2.15rem, 4vw, 3.7rem);
  line-height: 1.18;
}

.about-layout,
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 24px;
  margin-top: 36px;
}

.about-copy,
.vision-panel,
.story-card,
.brand-card,
.science-card,
.pathway-card,
.research-card,
.product-card,
.future-card,
.standard-card,
.hub-card,
.contact-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: none;
}

.about-copy,
.vision-panel,
.story-card,
.brand-card,
.science-card,
.pathway-card,
.research-card,
.product-card,
.future-card,
.standard-card,
.hub-card,
.contact-card {
  position: relative;
}

.about-copy::before,
.vision-panel::before,
.story-card::before,
.brand-card::before,
.science-card::before,
.pathway-card::before,
.research-card::before,
.product-card::before,
.future-card::before,
.standard-card::before,
.hub-card::before,
.contact-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, rgba(184, 156, 102, 0.6), transparent 60%);
  border-top-left-radius: inherit;
  border-top-right-radius: inherit;
}

.about-copy,
.vision-panel {
  padding: 34px;
}

.vision-panel {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at top right, rgba(156, 174, 151, 0.14), transparent 35%),
    radial-gradient(circle at bottom left, rgba(184, 156, 102, 0.12), transparent 45%),
    linear-gradient(180deg, #ffffff, #f7fbf8);
}

.vision-panel__quote {
  margin: 0;
  color: var(--ink);
  font-family: "Noto Serif SC", "Cormorant Garamond", serif;
  font-size: 1.88rem;
  font-weight: 600;
  line-height: 1.3;
}

.vision-panel__text {
  margin: 18px 0 0;
}

.brand-grid,
.story-grid,
.pathways-grid,
.science-grid,
.research-strip,
.standards-grid,
.hub-grid,
.products-grid {
  display: grid;
  gap: 20px;
  margin-top: 36px;
}

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

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

.pathways-grid {
  grid-template-columns: repeat(5, 1fr);
}

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

.brand-card,
.story-card,
.science-card,
.pathway-card,
.research-card,
.future-card,
.standard-card,
.hub-card {
  padding: 30px;
}

.brand-card__head {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.brand-card--pure {
  background: linear-gradient(180deg, #ffffff 0%, #f7fbf8 60%, #edf5f1 100%);
}

.brand-card--labs {
  background: linear-gradient(180deg, #ffffff, #faf7f4);
}

.card-list {
  margin: 18px 0 0;
  padding-left: 18px;
}

.card-list li + li {
  margin-top: 8px;
}

.story-card,
.pathway-card,
.research-card,
.hub-card {
  min-height: 100%;
}

.story-card {
  background: linear-gradient(180deg, #ffffff, #fcf8f2);
}

.pathway-card {
  background: linear-gradient(180deg, #ffffff, #f4faf7);
}

.science-card {
  position: relative;
  min-height: 220px;
  overflow: hidden;
}

.science-card__index {
  display: inline-flex;
  margin-bottom: 18px;
  color: rgba(30, 33, 37, 0.28);
  font-size: 2rem;
  font-weight: 800;
}

.research-strip {
  grid-template-columns: repeat(2, 1fr);
}

.research-card {
  background: linear-gradient(180deg, #ffffff, #f3faf7);
}

.products-grid {
  grid-template-columns: 1.2fr 1fr 1fr;
  align-items: stretch;
}

.product-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.product-card--feature {
  grid-row: span 2;
}

.product-card__media {
  position: relative;
  min-height: 320px;
  padding: 30px 24px 0;
  background:
    radial-gradient(circle at top center, rgba(207, 170, 107, 0.2), transparent 44%),
    linear-gradient(180deg, #ffffff, #f8f3eb);
  border-bottom: 1px solid var(--line);
}

.product-card--feature .product-card__media {
  background:
    radial-gradient(circle at top center, rgba(156, 174, 151, 0.22), transparent 44%),
    radial-gradient(circle at bottom center, rgba(184, 156, 102, 0.1), transparent 38%),
    linear-gradient(180deg, #ffffff, #f2f8f5 70%, #f8f3eb 100%);
}

.product-card__media img {
  height: 100%;
  max-height: 420px;
  object-fit: contain;
  margin-inline: auto;
  filter: drop-shadow(0 24px 44px rgba(24, 21, 18, 0.16));
}

.product-card__content {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 28px 28px 30px;
}

.product-card__number {
  color: rgba(184, 156, 102, 0.58);
  font-family: "Cormorant Garamond", serif;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
}

.product-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 10px;
}

.product-sku {
  color: var(--ink-soft);
  font-size: 0.85rem;
  font-weight: 700;
}

.product-card h3,
.future-card h3,
.story-card h3,
.brand-card h3,
.pathway-card h3,
.research-card h3,
.contact-card h3,
.science-card h3,
.hub-card h3,
.standard-card h3 {
  margin-top: 16px;
  font-size: 1.5rem;
  line-height: 1.24;
}

.product-card:nth-child(2) .product-card__media {
  background:
    radial-gradient(circle at top center, rgba(207, 91, 134, 0.18), transparent 44%),
    linear-gradient(180deg, #ffffff, #fcf5f8);
}

.product-card--feature .product-badge {
  background: rgba(232, 240, 232, 0.96);
  color: var(--sage-deep);
}

.product-card:nth-child(2) .product-badge {
  background: var(--rose-soft);
  color: #a53d68;
}

.product-card:nth-child(3) .product-card__media {
  background:
    radial-gradient(circle at top center, rgba(232, 185, 62, 0.2), transparent 44%),
    linear-gradient(180deg, #ffffff, #fdf8ee);
}

.product-card:nth-child(3) .product-badge {
  background: #f8e5ae;
  color: #9a6a00;
}

.future-card {
  background: linear-gradient(180deg, #0d0d0d, #171311);
  border-color: rgba(255, 255, 255, 0.08);
}

.future-list {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.future-card p,
.future-card h3,
.future-card strong {
  color: rgba(255, 255, 255, 0.92);
}

.future-card__eyebrow {
  background: rgba(255, 255, 255, 0.08);
  color: var(--gold);
}

.future-list strong {
  font-size: 1rem;
}

.standards-grid {
  grid-template-columns: repeat(5, 1fr);
}

.standard-card {
  min-height: 240px;
}

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

.hub-card {
  background: linear-gradient(180deg, #ffffff, #f6fbf8);
}

.contact-section {
  padding-bottom: 100px;
}

.contact-card {
  padding: 28px;
}

.contact-card--highlight {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100%;
  background: linear-gradient(145deg, #0e0e0e 0%, #171814 56%, #1a1512 100%);
  border-color: rgba(255, 255, 255, 0.08);
}

.contact-card--highlight h3,
.contact-card--highlight p,
.contact-card--highlight .contact-card__label {
  color: rgba(255, 255, 255, 0.94);
}

.contact-card--highlight .contact-card__label {
  background: rgba(255, 255, 255, 0.08);
  color: var(--gold);
}

.contact-card--highlight .button--primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-deep));
  color: #fffdf8;
}

.contact-stack {
  display: grid;
  gap: 18px;
}

.contact-card a {
  width: fit-content;
  margin-top: 12px;
  color: var(--navy);
  font-weight: 800;
}

.site-footer {
  margin-top: 26px;
  background: var(--black);
  color: #ffffff;
  border-top: 2px solid var(--gold);
}

.footer-inner {
  width: var(--container);
  margin-inline: auto;
  padding: 38px 0 30px;
}

.footer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.footer-logo__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 16px;
  border-radius: 999px;
  background: #ffffff;
  color: var(--black);
  border: 2px solid var(--gold);
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-logo__image {
  display: block;
  width: 156px;
  height: auto;
}

.footer-logo__sub {
  color: rgba(244, 234, 216, 0.68);
  font-size: 0.9rem;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  color: #ffffff;
  font-size: 0.86rem;
  font-weight: 800;
}

.footer-social a:hover,
.language-toggle:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.footer-links-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 30px;
  padding: 28px 0 42px;
}

.footer-col h3 {
  margin: 0 0 18px;
  color: #ffffff;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

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

.footer-links li,
.footer-links a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.93rem;
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-legal,
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.footer-legal {
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-legal p {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.92rem;
}

.footer-bottom {
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.payment-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.payment-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 74px;
  min-height: 32px;
  padding: 0 14px;
  border-radius: 8px;
  background: #ffffff;
  color: var(--black);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.language-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  color: #ffffff;
  font-size: 0.9rem;
  font-weight: 700;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 620ms ease, transform 620ms ease;
}

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

@keyframes drift {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-14px);
  }
}

@media (max-width: 1180px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-top: 64px;
  }

  .hero-visual {
    min-height: 720px;
  }

  .hero-visual::after {
    right: 48px;
    bottom: 54px;
  }

  .trust-band,
  .story-grid,
  .pathways-grid,
  .science-grid,
  .research-strip,
  .standards-grid,
  .hub-grid,
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-card--feature {
    grid-row: auto;
  }

  .about-layout,
  .contact-layout,
  .brand-grid {
    grid-template-columns: 1fr;
  }

  .footer-links-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 860px) {
  :root {
    --container: min(100vw - 28px, 100%);
  }

  .site-header {
    grid-template-columns: 1fr auto auto;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 14px;
  }

  .menu-toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    left: 12px;
    right: 12px;
    top: calc(100% + 10px);
    display: grid;
    gap: 10px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-12px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  body.nav-open .site-nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  body.nav-open .menu-toggle span:first-child {
    transform: translateY(7px) rotate(45deg);
  }

  body.nav-open .menu-toggle span:last-child {
    transform: translateY(-7px) rotate(-45deg);
  }

  .header-cta {
    display: none;
  }

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

  .hero-signature {
    max-width: 100%;
  }

  .hero-signature span {
    font-size: 0.7rem;
    letter-spacing: 0.12em;
  }

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

  .hero-visual {
    min-height: 640px;
  }

  .hero-visual::after {
    width: 92px;
    height: 92px;
    right: 34px;
    bottom: 36px;
  }

  .hero-showcase {
    inset: 44px 18px 30px;
  }

  .trust-band,
  .story-grid,
  .pathways-grid,
  .science-grid,
  .research-strip,
  .products-grid,
  .hub-grid,
  .standards-grid {
    grid-template-columns: 1fr;
  }

  .footer-head,
  .footer-legal,
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-links-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 560px) {
  .announcement-bar {
    padding-inline: 16px;
    font-size: 0.68rem;
    letter-spacing: 0.12em;
  }

  .hero {
    padding-top: 44px;
  }

  .hero-signature {
    width: 100%;
    justify-content: center;
  }

  .hero-footnote {
    font-size: 0.84rem;
  }

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

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 520px;
  }

  .hero-visual::after {
    display: none;
  }

  .hero-showcase {
    position: relative;
    inset: auto;
    min-height: 400px;
  }

  .about-copy,
  .vision-panel,
  .story-card,
  .brand-card,
  .science-card,
  .pathway-card,
  .research-card,
  .product-card__content,
  .future-card,
  .standard-card,
  .hub-card,
  .contact-card {
    padding: 24px;
  }

  .product-card__media {
    min-height: 260px;
  }

  .footer-links-grid {
    grid-template-columns: 1fr;
  }

  .footer-head {
    align-items: flex-start;
  }

  .footer-social {
    flex-wrap: wrap;
  }

  .payment-list {
    width: 100%;
  }

  .payment-badge,
  .language-toggle {
    width: fit-content;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

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