:root {
  color-scheme: light;
  --ink: #14171a;
  --muted: #5f6872;
  --line: #dfe3e7;
  --surface: #f5f7f8;
  --surface-strong: #edf1f3;
  --accent: #0676ce;
  --accent-dark: #005da5;
  --red: #e95353;
  --green: #1cab73;
  --blue-soft: #dceefe;
  --max: 1120px;
  --narrow: 760px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Yu Gothic", YuGothic, sans-serif;
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0;
}

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

a {
  color: var(--accent-dark);
  text-underline-offset: 3px;
}

a:hover {
  color: var(--accent);
}

a:focus-visible {
  outline: 3px solid rgba(6, 118, 206, 0.35);
  outline-offset: 3px;
}

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

h1 {
  margin-bottom: 16px;
  font-size: 52px;
  line-height: 1.12;
}

h2 {
  margin-bottom: 16px;
  font-size: 30px;
  line-height: 1.35;
}

p,
ul,
ol,
dl {
  margin-bottom: 0;
}

.content,
.header-inner {
  width: min(var(--max), calc(100% - 48px));
  margin-inline: auto;
}

.narrow-content {
  width: min(var(--narrow), calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(223, 227, 231, 0.92);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
}

.header-inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 750;
  text-decoration: none;
}

.brand img {
  border-radius: 8px;
}

nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

nav a {
  color: #424a52;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
}

nav a[aria-current="page"] {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 7px;
}

.intro-band {
  padding: 80px 0 70px;
}

.intro-content {
  display: flex;
  align-items: center;
  gap: 44px;
}

.app-icon {
  flex: 0 0 auto;
  width: 152px;
  border-radius: 30px;
  box-shadow: 0 16px 34px rgba(24, 38, 52, 0.18);
}

.eyebrow {
  margin-bottom: 8px;
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 750;
}

.lead {
  max-width: 720px;
  color: #30363c;
  font-size: 21px;
  line-height: 1.65;
}

.availability {
  margin-top: 20px;
  color: var(--muted);
  font-size: 15px;
}

.product-band {
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: var(--surface);
}

.product-layout {
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 430px);
  align-items: center;
  gap: 72px;
}

.product-copy p:not(.eyebrow) {
  color: #414951;
}

.check-list {
  display: grid;
  gap: 12px;
  margin-top: 28px;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 29px;
}

.check-list li::before {
  position: absolute;
  top: 0.75em;
  left: 2px;
  width: 13px;
  height: 7px;
  border-bottom: 2px solid var(--green);
  border-left: 2px solid var(--green);
  content: "";
  transform: rotate(-45deg);
}

.device-shot {
  width: min(100%, 390px);
  margin: 56px auto -145px;
  border: 1px solid #d3d8dc;
  border-radius: 8px 8px 0 0;
  background: #fff;
  box-shadow: 0 24px 50px rgba(34, 47, 58, 0.16);
  overflow: hidden;
}

.device-shot img {
  width: 100%;
  height: auto;
}

.details-band {
  padding: 86px 0;
}

.details-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 80px;
}

.details-grid p:not(.eyebrow) {
  color: var(--muted);
}

.spec-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.spec-list div {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.spec-list dt {
  font-weight: 700;
}

.spec-list dd {
  margin: 0;
  color: var(--muted);
}

.support-band {
  padding: 48px 0;
  border-block: 1px solid var(--line);
  background: var(--surface-strong);
}

.support-callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.support-callout h2 {
  margin-bottom: 4px;
  font-size: 24px;
}

.support-callout p {
  color: var(--muted);
}

.button-link {
  flex: 0 0 auto;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 8px;
  color: #fff;
  background: var(--accent-dark);
  font-weight: 700;
  text-decoration: none;
}

.button-link:hover {
  color: #fff;
  background: var(--accent);
}

.page-heading {
  padding: 68px 0 52px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.page-heading h1 {
  font-size: 42px;
}

.updated {
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
}

.article-stack {
  padding-top: 20px;
  padding-bottom: 80px;
}

.article-section {
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}

.article-section h2,
.contact-section h2,
.privacy-summary h2 {
  font-size: 24px;
}

.article-section p,
.article-section li,
.contact-section p,
.privacy-summary li {
  color: #3f474f;
}

.article-section ul,
.privacy-summary ul {
  padding-left: 1.3em;
}

.steps {
  display: grid;
  gap: 18px;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 34px 1fr;
  align-items: start;
  gap: 14px;
}

.steps span {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: #26323c;
  font-size: 14px;
  font-weight: 750;
}

.legend-list {
  margin: 0 0 24px;
  border-top: 1px solid var(--line);
}

.legend-list div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.legend-list dt {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}

.legend-list dd {
  margin: 0;
  color: var(--muted);
}

.swatch {
  width: 18px;
  height: 18px;
  border: 1px solid rgba(20, 23, 26, 0.12);
  border-radius: 4px;
}

.swatch.removed {
  background: #fbdada;
}

.swatch.added {
  background: #d6f3e6;
}

.swatch.current {
  border: 3px solid var(--accent);
  background: var(--blue-soft);
}

.contact-section,
.privacy-summary {
  margin-top: 40px;
  padding: 28px;
  border: 1px solid #cfd7dd;
  border-radius: 8px;
  background: var(--surface);
}

.contact-section p + p {
  margin-top: 10px;
}

.email-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 19px;
  font-weight: 700;
}

.privacy-summary {
  margin-bottom: 4px;
  border-left: 5px solid var(--green);
  background: #f2faf6;
}

.privacy-summary ul {
  display: grid;
  gap: 6px;
}

footer {
  padding: 28px 0;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.footer-inner div {
  display: flex;
  gap: 20px;
}

@media (max-width: 760px) {
  body {
    font-size: 16px;
  }

  .content,
  .header-inner,
  .narrow-content {
    width: min(100% - 32px, var(--max));
  }

  .site-header {
    position: static;
  }

  .header-inner {
    min-height: auto;
    align-items: flex-start;
    padding: 14px 0;
  }

  .brand span {
    display: none;
  }

  nav {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px 16px;
  }

  nav a {
    font-size: 13px;
  }

  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 26px;
  }

  .intro-band {
    padding: 52px 0 48px;
  }

  .intro-content {
    align-items: flex-start;
    gap: 22px;
  }

  .app-icon {
    width: 88px;
    border-radius: 20px;
  }

  .lead {
    font-size: 18px;
  }

  .availability {
    margin-top: 14px;
  }

  .product-layout {
    min-height: 0;
    grid-template-columns: 1fr;
    gap: 16px;
    padding-top: 56px;
  }

  .device-shot {
    width: min(88%, 390px);
    margin: 28px auto -110px;
  }

  .details-band {
    padding: 70px 0;
  }

  .details-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .spec-list div {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .support-callout,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .page-heading {
    padding: 48px 0 38px;
  }

  .page-heading h1 {
    font-size: 34px;
  }

  .article-stack {
    padding-bottom: 56px;
  }

  .article-section {
    padding: 32px 0;
  }

  .legend-list div {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .contact-section,
  .privacy-summary {
    padding: 22px;
  }
}

@media (max-width: 420px) {
  .intro-content {
    display: block;
  }

  .app-icon {
    margin-bottom: 22px;
  }

  nav {
    max-width: 260px;
  }

  .footer-inner div {
    flex-direction: column;
    gap: 6px;
  }
}

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