:root {
  --ink: #172033;
  --muted: #5d687b;
  --line: #dce2ea;
  --surface: #ffffff;
  --surface-soft: #f4f7fa;
  --navy: #173b7a;
  --navy-deep: #102957;
  --teal: #14a99a;
  --teal-dark: #0b736b;
  --teal-soft: #dff8f4;
  --amber: #e99a25;
  --footer: #111722;
  --shadow: 0 16px 40px rgba(20, 32, 54, 0.1);
  --page: 1120px;
  color-scheme: light;
}

* {
  box-sizing: border-box;
  letter-spacing: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-optical-sizing: auto;
  line-height: 1.68;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

[hidden] {
  display: none !important;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button,
input,
textarea {
  font: inherit;
}

:focus-visible {
  outline: 3px solid rgba(20, 169, 154, 0.45);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  color: #fff;
  background: var(--navy-deep);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(calc(100% - 48px), var(--page));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  height: 70px;
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid rgba(220, 226, 234, 0.72);
  backdrop-filter: blur(22px) saturate(150%);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: 176px;
  color: var(--ink);
}

.brand-emblem {
  display: block;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  border-radius: 8px;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand-copy strong {
  font-size: 14px;
  font-weight: 700;
}

.brand-copy small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 11px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a {
  display: flex;
  align-items: center;
  min-height: 40px;
  padding: 0 15px;
  color: #475367;
  border-bottom: 2px solid transparent;
  font-size: 14px;
  font-weight: 600;
  transition: color 160ms ease, border-color 160ms ease,
    background-color 160ms ease, transform 100ms ease-out;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--navy);
  border-bottom-color: var(--teal);
}

.nav-download {
  margin-left: 8px;
  color: #fff !important;
  background: var(--navy);
  border: 0 !important;
  border-radius: 6px;
}

.nav-download:hover {
  background: var(--navy-deep);
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 7px;
  cursor: pointer;
  transition: background-color 160ms ease, transform 100ms ease-out;
}

.menu-button:hover {
  background: var(--surface-soft);
}

.button:active,
.nav-links a:active,
.menu-button:active {
  transform: scale(0.98);
  transition-duration: 100ms;
}

.menu-button span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-button[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-button[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-button[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.hero {
  position: relative;
  display: flex;
  min-height: 560px;
  height: calc(100svh - 132px);
  max-height: 650px;
  align-items: center;
  overflow: hidden;
  color: #fff;
  background-color: var(--navy-deep);
  background-position: center;
  background-size: cover;
}

.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background: rgba(8, 23, 47, 0.63);
}

.home-hero {
  background-image: url("../img/antenna.jpg");
  background-position: center 62%;
}

.pact-hero {
  background-image: url("../img/pact-icon.png");
  background-position: 72% center;
}

.pact-hero::before {
  background: rgba(5, 62, 70, 0.68);
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-copy {
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 14px;
  color: #9ff2e8;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
  text-transform: uppercase;
}

.home-hero .eyebrow {
  color: #b6d5ff;
}

.hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: 3.75rem;
  font-weight: 700;
  line-height: 1.12;
}

.hero-lead {
  max-width: 620px;
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.1875rem;
  line-height: 1.72;
}

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

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 19px;
  color: #fff;
  background: var(--navy);
  border: 1px solid var(--navy);
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  transition: background-color 160ms ease, border-color 160ms ease,
    transform 160ms ease;
}

.button:hover {
  background: var(--navy-deep);
  border-color: var(--navy-deep);
  transform: translateY(-1px);
}

.button-light {
  color: var(--navy-deep);
  background: #fff;
  border-color: #fff;
}

.button-light:hover {
  color: var(--navy-deep);
  background: #edf5ff;
  border-color: #edf5ff;
}

.button-ghost {
  color: #fff;
  background: transparent;
  border-color: rgba(255, 255, 255, 0.56);
}

.button-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

.button-teal {
  background: var(--teal-dark);
  border-color: var(--teal-dark);
}

.button[aria-disabled="true"] {
  color: #7c8798;
  background: #e4e9ef;
  border-color: #e4e9ef;
  cursor: not-allowed;
  transform: none;
}

.section {
  padding: 88px 0;
}

.section-compact {
  padding: 64px 0;
}

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

.section-dark {
  color: #fff;
  background: var(--navy-deep);
}

.section-teal {
  color: #fff;
  background: var(--teal-dark);
}

.section-kicker {
  margin: 0 0 10px;
  color: var(--teal-dark);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
}

.section-dark .section-kicker,
.section-teal .section-kicker {
  color: #a8f2e9;
}

.section-title {
  max-width: 720px;
  margin: 0;
  font-size: 2.375rem;
  font-weight: 700;
  line-height: 1.32;
}

.section-intro {
  max-width: 680px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.72;
}

.section-dark .section-intro,
.section-teal .section-intro {
  color: rgba(255, 255, 255, 0.76);
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 64px;
  align-items: center;
}

.split-wide {
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
}

.copy-large {
  max-width: 68ch;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.copy-stack > * + * {
  margin-top: 18px;
}

.link-arrow {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  margin-top: 22px;
  color: var(--navy);
  font-size: 14px;
  font-weight: 600;
}

.link-arrow:hover {
  color: var(--teal-dark);
}

.product-summary {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: 72px;
  align-items: center;
}

.product-summary-copy {
  max-width: 650px;
}

.product-summary-visual {
  width: min(100%, 360px);
  aspect-ratio: 1;
  justify-self: end;
  overflow: hidden;
  background: #29c9bd;
  border-radius: 8px;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.product-summary-visual:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.product-summary-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.value-grid,
.proof-grid,
.principle-grid,
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  margin-top: 40px;
}

.value-item,
.proof-item {
  padding-top: 20px;
  border-top: 2px solid var(--line);
}

.value-item:nth-child(1),
.proof-item:nth-child(1) {
  border-color: var(--navy);
}

.value-item:nth-child(2),
.proof-item:nth-child(2) {
  border-color: var(--teal);
}

.value-item:nth-child(3),
.proof-item:nth-child(3) {
  border-color: var(--amber);
}

.value-item h3,
.proof-item h3,
.principle h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 600;
  line-height: 1.45;
}

.value-item p,
.proof-item p,
.principle p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.72;
}

.section-dark .proof-item p,
.section-teal .proof-item p {
  color: rgba(255, 255, 255, 0.74);
}

.product-visual,
.editorial-visual {
  position: relative;
  min-height: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: #29c9bd;
  border-radius: 8px;
}

.product-visual img,
.editorial-visual img {
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
}

.product-visual-label {
  position: absolute;
  right: 18px;
  bottom: 18px;
  padding: 8px 12px;
  color: #fff;
  background: rgba(7, 52, 58, 0.8);
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
}

.metric-line {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-top: 28px;
}

.metric-line strong {
  color: var(--navy);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
}

.metric-line span {
  color: var(--muted);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 44px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: pact-step;
}

.process-list li {
  position: relative;
  min-height: 200px;
  padding: 26px 28px 30px;
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
  counter-increment: pact-step;
}

.process-list li:first-child {
  border-radius: 8px 0 0 8px;
}

.process-list li:last-child {
  border-right: 1px solid var(--line);
  border-radius: 0 8px 8px 0;
}

.process-list li::before {
  display: grid;
  width: 38px;
  height: 38px;
  margin-bottom: 22px;
  place-items: center;
  color: #fff;
  background: var(--navy);
  border-radius: 6px;
  content: counter(pact-step, decimal-leading-zero);
  font-size: 12px;
  font-weight: 700;
}

.process-list li:nth-child(2)::before {
  background: var(--teal-dark);
}

.process-list li:nth-child(3)::before {
  background: #a86100;
}

.process-list h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.process-list p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.phone-stage {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 44px;
  align-items: start;
}

.phone-tabs {
  display: none;
}

.phone-preview {
  width: min(100%, 320px);
  min-height: 610px;
  margin: 0 auto;
  padding: 12px;
  background: #121926;
  border: 1px solid #2b3444;
  border-radius: 30px;
  box-shadow: var(--shadow);
}

.phone-screen {
  min-height: 584px;
  overflow: hidden;
  padding: 26px 18px;
  background: #f8fafc;
  border-radius: 21px;
}

.phone-topline {
  display: flex;
  justify-content: space-between;
  color: #64748b;
  font-size: 11px;
  font-weight: 700;
}

.phone-title {
  margin: 32px 0 4px;
  color: #1e293b;
  font-size: 21px;
  font-weight: 700;
  line-height: 1.25;
}

.phone-subtitle {
  margin: 0;
  color: #64748b;
  font-size: 13px;
}

.phone-card {
  margin-top: 18px;
  padding: 16px;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
}

.phone-card strong {
  display: block;
  color: #1e293b;
  font-size: 14px;
  font-weight: 600;
}

.phone-card p {
  margin: 7px 0 0;
  color: #64748b;
  font-size: 12px;
  line-height: 1.5;
}

.phone-stat {
  margin-top: 12px;
  color: var(--navy);
  font-size: 27px;
  font-weight: 700;
}

.phone-kid .phone-stat,
.phone-kid .phone-button {
  color: #063c38;
  background: #ccfbf1;
}

.phone-progress {
  height: 8px;
  margin-top: 14px;
  overflow: hidden;
  background: #e2e8f0;
  border-radius: 4px;
}

.phone-progress span {
  display: block;
  width: 62%;
  height: 100%;
  background: var(--teal);
}

.phone-button {
  display: flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  margin-top: 18px;
  color: #fff;
  background: var(--navy);
  border-radius: 7px;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
}

.phone-note {
  margin: 24px 0 0;
  color: #64748b;
  font-size: 11px;
  text-align: center;
}

.caption {
  margin: 24px auto 0;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.transparency-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 32px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.transparency-list li {
  position: relative;
  padding-left: 28px;
  color: rgba(255, 255, 255, 0.86);
}

.transparency-list li::before {
  position: absolute;
  top: 10px;
  left: 0;
  width: 10px;
  height: 10px;
  background: #78eadc;
  border-radius: 50%;
  content: "";
}

.download-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(360px, 1.2fr);
  gap: 56px;
  align-items: center;
}

.download-panel {
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.download-desktop {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}

.qr-shell {
  display: grid;
  width: 210px;
  height: 210px;
  padding: 14px;
  place-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.qr-grid {
  display: grid;
  width: 180px;
  height: 180px;
  grid-template-columns: repeat(var(--qr-modules, 1), 1fr);
  grid-template-rows: repeat(var(--qr-modules, 1), 1fr);
  background: #fff;
}

.qr-cell {
  background: #fff;
}

.qr-cell.is-dark {
  background: #111722;
}

.qr-fallback {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.download-copy h3 {
  margin: 0;
  font-size: 21px;
  font-weight: 600;
}

.download-copy p {
  margin: 10px 0 0;
  color: var(--muted);
}

.store-status {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.store-row {
  display: flex;
  min-height: 46px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 14px;
  background: var(--surface-soft);
  border-radius: 6px;
  font-size: 14px;
}

.store-row span:last-child {
  color: var(--teal-dark);
  font-weight: 600;
}

.download-mobile {
  display: none;
}

.launch-notify {
  margin-top: 22px;
}

.is-store-pending .download-desktop {
  grid-template-columns: 1fr;
}

.page-intro {
  padding: 68px 0 64px;
  color: #fff;
  background: var(--navy-deep);
}

.page-intro .eyebrow {
  margin-bottom: 12px;
  font-size: 14px;
}

.page-intro h1 {
  max-width: 800px;
  margin: 0;
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.2;
}

.page-intro p {
  max-width: 680px;
  margin: 16px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
  line-height: 1.72;
}

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

.principle {
  min-height: 202px;
  padding: 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.principle-index {
  display: block;
  margin-bottom: 28px;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 700;
}

.fact-list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.fact-list li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 24px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.fact-list strong {
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
}

.fact-list span {
  color: var(--muted);
  font-size: 15px;
}

.contact-grid {
  grid-template-columns: 1.15fr 0.85fr;
  align-items: stretch;
}

.contact-panel {
  min-height: 272px;
  padding: 30px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.contact-panel-accent {
  color: #fff;
  background: var(--teal-dark);
  border-color: var(--teal-dark);
}

.contact-label {
  display: block;
  margin-top: 24px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

.contact-panel h2 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
}

.contact-panel-accent .contact-label {
  color: rgba(255, 255, 255, 0.66);
}

.contact-value {
  display: block;
  margin-top: 5px;
  font-size: 16px;
  font-style: normal;
  font-weight: 600;
  line-height: 1.72;
}

a.contact-value:hover {
  text-decoration: underline;
}

.site-footer {
  color: #c5cbd6;
  background: var(--footer);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 56px;
  padding: 52px 0 40px;
}

.footer-brand {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
}

.footer-note {
  max-width: 420px;
  margin: 12px 0 0;
  color: #8e98a8;
  font-size: 13px;
  font-weight: 400;
}

.footer-heading {
  margin: 0 0 14px;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
}

.footer-links {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
}

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

.footer-bottom {
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid #2a3140;
  color: #7f8999;
  font-size: 12px;
}

.footer-bottom a:hover {
  color: #fff;
}

.notice {
  padding: 14px 16px;
  color: #6e4b14;
  background: #fff5df;
  border-left: 4px solid var(--amber);
  font-size: 14px;
}

.js .reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 360ms ease, transform 360ms ease;
}

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

@media (max-width: 900px) {
  .shell {
    width: min(calc(100% - 36px), var(--page));
  }

  .menu-button {
    display: block;
  }

  .nav-links {
    position: fixed;
    inset: 70px 0 auto;
    display: none;
    max-height: calc(100svh - 70px);
    padding: 14px 18px 24px;
    overflow-y: auto;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 36px rgba(20, 32, 54, 0.12);
  }

  .nav-links.is-open {
    display: grid;
  }

  .nav-links a {
    min-height: 52px;
    padding: 0 8px;
    border-bottom: 1px solid var(--line);
  }

  .nav-download {
    margin: 10px 0 0;
    justify-content: center;
    border-bottom: 0 !important;
  }

  .hero h1 {
    font-size: 3.25rem;
  }

  .hero-lead {
    font-size: 17px;
  }

  .section {
    padding: 72px 0;
  }

  .two-column,
  .split-wide,
  .download-layout,
  .product-summary {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .product-summary-visual {
    width: min(100%, 440px);
    justify-self: start;
  }

  .value-grid,
  .proof-grid,
  .phone-stage {
    grid-template-columns: 1fr;
  }

  .phone-stage {
    gap: 0;
    margin-top: 24px;
  }

  .phone-tabs {
    display: grid;
    max-width: 480px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4px;
    margin-top: 32px;
    padding: 4px;
    background: #e8edf3;
    border-radius: 8px;
  }

  .phone-tab {
    min-height: 42px;
    padding: 0 8px;
    color: var(--muted);
    background: transparent;
    border: 0;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: color 160ms ease, background-color 160ms ease,
      box-shadow 160ms ease, transform 100ms ease-out;
  }

  .phone-tab[aria-selected="true"] {
    color: var(--ink);
    background: #fff;
    box-shadow: 0 2px 8px rgba(20, 32, 54, 0.1);
  }

  .phone-tab:active {
    transform: scale(0.98);
  }

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

  .process-list li {
    min-height: 0;
    border-right: 1px solid var(--line);
    border-bottom: 0;
  }

  .process-list li:first-child {
    border-radius: 8px 8px 0 0;
  }

  .process-list li:last-child {
    border-bottom: 1px solid var(--line);
    border-radius: 0 0 8px 8px;
  }

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

  .footer-main > :first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 680px) {
  .site-header,
  .site-nav {
    height: 64px;
  }

  .nav-links {
    inset: 64px 0 auto;
    max-height: calc(100svh - 64px);
  }

  .brand {
    min-width: 0;
  }

  .hero {
    min-height: 500px;
    height: calc(100svh - 124px);
    max-height: 600px;
  }

  .home-hero {
    background-position: 64% center;
  }

  .pact-hero {
    background-position: center;
  }

  .hero::before,
  .pact-hero::before {
    background: rgba(7, 27, 47, 0.69);
  }

  .hero h1 {
    font-size: 2.625rem;
  }

  .hero-actions,
  .button-row {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .section,
  .section-compact {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.875rem;
  }

  .section-intro,
  .copy-large {
    font-size: 16px;
  }

  .value-grid,
  .proof-grid,
  .principle-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .product-visual,
  .product-visual img,
  .editorial-visual,
  .editorial-visual img {
    min-height: 0;
  }

  .product-visual,
  .editorial-visual {
    aspect-ratio: 4 / 3;
  }

  .product-summary-visual {
    width: 100%;
  }

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

  .download-panel,
  .contact-panel {
    padding: 22px;
  }

  .contact-panel,
  .principle {
    min-height: 0;
  }

  .download-desktop {
    display: none;
  }

  .download-mobile {
    display: block;
  }

  .download-mobile .button + .button {
    margin-top: 10px;
  }

  .page-intro {
    padding: 56px 0 52px;
  }

  .page-intro h1 {
    font-size: 2.25rem;
  }

  .fact-list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .footer-main > :first-child {
    grid-column: auto;
  }

  .footer-bottom {
    display: grid;
    justify-content: start;
    padding: 22px 0;
  }
}

@media (prefers-reduced-transparency: reduce) {
  .site-header {
    background: #fff;
    backdrop-filter: none;
  }
}

@media (prefers-contrast: more) {
  .site-header {
    background: #fff;
    border-bottom-color: #8c96a6;
  }

  .button,
  .contact-panel,
  .principle {
    border-color: currentColor;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}