:root {
  color-scheme: light dark;
  --background: #f4f7f8;
  --surface: #ffffff;
  --surface-soft: #eaf1f2;
  --text: #102033;
  --text-muted: #506174;
  --border: #d7e0e4;
  --accent: #096b69;
  --accent-strong: #075654;
  --accent-soft: #d9efed;
  --focus: #0b75c9;
  --shadow: 0 18px 50px rgba(16, 32, 51, 0.08);
  --radius-large: 28px;
  --radius-medium: 18px;
  --content-width: 1120px;
  --reading-width: 760px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

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

a:focus-visible {
  border-radius: 6px;
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--text);
  color: var(--surface);
  transform: translateY(-160%);
}

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

.container {
  width: min(calc(100% - 40px), var(--content-width));
  margin-inline: auto;
}

.reading-container {
  width: min(calc(100% - 40px), var(--reading-width));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--background) 92%, transparent);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 80px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  gap: 12px;
  color: var(--text);
  font-size: 1.08rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand img {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  box-shadow: 0 7px 20px rgba(10, 28, 58, 0.18);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 12px;
  border-radius: 12px;
  color: var(--text-muted);
  font-size: 0.94rem;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--surface-soft);
  color: var(--text);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
  align-items: center;
  gap: clamp(40px, 8vw, 96px);
  padding-block: clamp(72px, 10vw, 128px);
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(2.8rem, 7vw, 5.7rem);
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(1.75rem, 3vw, 2.55rem);
}

h3 {
  margin-bottom: 10px;
  font-size: 1.12rem;
}

.hero-copy {
  max-width: 650px;
  margin: 0;
  color: var(--text-muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 14px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 750;
  text-decoration: none;
  transition: background-color 180ms ease, border-color 180ms ease;
}

.button:hover {
  background: var(--accent-strong);
  color: #ffffff;
}

.button.secondary {
  border-color: var(--border);
  background: var(--surface);
  color: var(--text);
}

.button.secondary:hover {
  border-color: var(--accent);
  background: var(--surface-soft);
}

.app-card {
  justify-self: center;
  width: min(100%, 360px);
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-large);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.app-card img {
  width: 100%;
  border-radius: 22%;
}

.app-card p {
  margin: 20px 0 0;
  color: var(--text-muted);
  text-align: center;
}

.section {
  padding-block: clamp(64px, 8vw, 104px);
}

.section-heading {
  max-width: 700px;
  margin-bottom: 32px;
}

.section-heading p {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.05rem;
}

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

.card {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-medium);
  background: var(--surface);
}

.card p {
  margin: 0;
  color: var(--text-muted);
}

.callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: clamp(28px, 5vw, 48px);
  border-radius: var(--radius-large);
  background: var(--accent-soft);
}

.callout h2,
.callout p {
  margin-bottom: 0;
}

.callout p {
  margin-top: 10px;
  color: var(--text-muted);
}

.page-intro {
  padding-block: 72px 40px;
}

.page-intro h1 {
  margin-bottom: 18px;
  font-size: clamp(2.5rem, 6vw, 4.6rem);
}

.page-intro p {
  max-width: 680px;
  margin: 0;
  color: var(--text-muted);
  font-size: 1.12rem;
}

.support-panel {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-medium);
  background: var(--surface);
}

.support-panel + .support-panel {
  margin-top: 18px;
}

.support-panel p:last-child {
  margin-bottom: 0;
}

.support-email {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 1.08rem;
  font-weight: 750;
}

.legal-content {
  padding-block: 24px 96px;
}

.legal-content h2 {
  margin-top: 48px;
  margin-bottom: 12px;
  font-size: 1.45rem;
  letter-spacing: -0.02em;
}

.legal-content p,
.legal-content li {
  color: var(--text-muted);
}

.legal-content strong {
  color: var(--text);
}

.effective-date {
  display: inline-block;
  margin-bottom: 16px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 650;
}

.site-footer {
  padding-block: 34px;
  border-top: 1px solid var(--border);
}

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

.footer-inner p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.footer-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  font-size: 0.9rem;
  font-weight: 650;
}

@media (max-width: 800px) {
  .header-inner,
  .footer-inner,
  .callout {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-inner {
    padding-block: 14px;
  }

  .site-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-block: 64px 80px;
  }

  .app-card {
    width: min(82vw, 320px);
  }

  .card-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container,
  .reading-container {
    width: min(calc(100% - 28px), var(--content-width));
  }

  h1 {
    font-size: clamp(2.5rem, 15vw, 3.7rem);
  }

  .hero-actions,
  .hero-actions .button {
    width: 100%;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #09111d;
    --surface: #111c2b;
    --surface-soft: #182738;
    --text: #f4f7fa;
    --text-muted: #b1c0cf;
    --border: #2a3a4c;
    --accent: #65d6d0;
    --accent-strong: #93ebe7;
    --accent-soft: #123a3d;
    --focus: #6eb8ff;
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
  }

  .button {
    background: #187f7c;
  }

  .button:hover {
    background: #1a9692;
  }
}

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

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