:root {
  color-scheme: light dark;
  --background: #f5f5f7;
  --surface: rgba(255, 255, 255, .82);
  --text: #1d1d1f;
  --secondary: #6e6e73;
  --border: rgba(0, 0, 0, .08);
  --accent: #0a84ff;
  --shadow: 0 18px 60px rgba(0, 0, 0, .08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #101012;
    --surface: rgba(30, 30, 32, .84);
    --text: #f5f5f7;
    --secondary: #a1a1a6;
    --border: rgba(255, 255, 255, .1);
    --shadow: 0 20px 70px rgba(0, 0, 0, .35);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--background);
  color: var(--text);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--background) 78%, transparent);
  backdrop-filter: blur(22px) saturate(160%);
  -webkit-backdrop-filter: blur(22px) saturate(160%);
}

.nav-inner {
  max-width: 980px;
  height: 58px;
  margin: auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand, .nav-links a {
  text-decoration: none;
  font-weight: 650;
}

.nav-links { display: flex; gap: 22px; color: var(--secondary); font-size: 14px; }
.nav-links a:hover { color: var(--text); }

main { max-width: 980px; margin: auto; padding: 76px 24px 90px; }

.hero {
  display: grid;
  grid-template-columns: 148px 1fr;
  gap: 42px;
  align-items: center;
  padding: 34px;
  border: 1px solid var(--border);
  border-radius: 34px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.app-icon {
  display: block;
  width: 148px;
  height: 148px;
  border-radius: 33px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, .2);
}

.eyebrow { margin: 0 0 7px; color: var(--accent); font-size: 13px; font-weight: 750; text-transform: uppercase; letter-spacing: .1em; }
h1 { margin: 0; font-size: clamp(42px, 7vw, 72px); line-height: .98; letter-spacing: -.055em; }
.tagline { margin: 18px 0 0; color: var(--secondary); font-size: clamp(19px, 3vw, 25px); font-weight: 550; }
.availability { display: inline-flex; margin-top: 22px; padding: 9px 14px; border-radius: 999px; background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); font-size: 14px; font-weight: 700; }

.intro { max-width: 720px; margin: 70px auto; text-align: center; }
.intro h2, .page-header h1 { font-size: clamp(34px, 5vw, 52px); line-height: 1.05; letter-spacing: -.04em; }
.intro p { color: var(--secondary); font-size: 20px; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { padding: 26px; border: 1px solid var(--border); border-radius: 25px; background: var(--surface); }
.card h3 { margin: 0 0 9px; font-size: 19px; }
.card p { margin: 0; color: var(--secondary); }
.metric { display: block; margin-bottom: 16px; color: var(--accent); font-size: 31px; font-weight: 760; letter-spacing: -.04em; }

.privacy-strip { margin-top: 20px; padding: 25px 28px; border-radius: 25px; color: var(--secondary); background: var(--surface); border: 1px solid var(--border); }
.privacy-strip strong { color: var(--text); }

.page { max-width: 760px; }
.page-header { margin-bottom: 42px; }
.page-header h1 { margin-bottom: 14px; }
.page-header p, .updated { color: var(--secondary); }
.content { padding: 34px; border-radius: 28px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); }
.content h2 { margin: 35px 0 9px; font-size: 22px; }
.content h2:first-child { margin-top: 0; }
.content p, .content li { color: var(--secondary); }
.content strong { color: var(--text); }
.content a { color: var(--accent); }
.content li + li { margin-top: 7px; }

.footer { border-top: 1px solid var(--border); }
.footer-inner { max-width: 980px; margin: auto; padding: 28px 24px 42px; display: flex; justify-content: space-between; gap: 20px; color: var(--secondary); font-size: 13px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
.footer a:hover { color: var(--text); }

@media (max-width: 700px) {
  main { padding-top: 44px; }
  .hero { grid-template-columns: 1fr; gap: 24px; padding: 26px; }
  .app-icon { width: 112px; height: 112px; border-radius: 26px; }
  .grid { grid-template-columns: 1fr; }
  .nav-links { gap: 13px; }
  .footer-inner { flex-direction: column; }
}