:root {
  color-scheme: dark;
  --ink: #eaf7f6;
  --muted: #9eb8b7;
  --bg: #071b22;
  --surface: #0c2730;
  --line: rgba(193, 240, 232, .16);
  --accent: #61e6c7;
  --warm: #a78bfa;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); line-height: 1.65; }
a { color: inherit; text-underline-offset: .22em; }
.site-header, main, footer { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.site-header { min-height: 88px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.app-brand { display: inline-flex; align-items: center; gap: 11px; font-size: 1.25rem; font-weight: 850; letter-spacing: -.02em; text-decoration: none; }
.app-icon { width: 48px; height: 48px; overflow: hidden; border-radius: 14px; background: #273f4d; }
.app-icon img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.08); }
nav { display: flex; gap: clamp(14px, 3vw, 34px); align-items: center; }
nav a { color: var(--muted); text-decoration: none; font-weight: 650; font-size: .92rem; }
nav a:hover, nav a:focus-visible { color: var(--ink); }
.language { border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; }

.hero { min-height: 720px; display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 60px; }
.hero-copy { max-width: 720px; }
.eyebrow { color: var(--accent); text-transform: uppercase; letter-spacing: .16em; font-size: .74rem; font-weight: 800; }
h1, h2, h3 { margin-top: 0; line-height: 1.06; letter-spacing: -.035em; }
h1 { font-size: clamp(3rem, 7vw, 6.4rem); margin-bottom: 28px; }
h2 { font-size: clamp(2.2rem, 5vw, 4.4rem); margin-bottom: 24px; }
h3 { font-size: 1.35rem; }
.lead { color: var(--muted); font-size: clamp(1.05rem, 1.7vw, 1.35rem); max-width: 720px; }
.button { display: inline-block; padding: 14px 22px; border-radius: 999px; background: var(--accent); color: #042019; font-weight: 850; text-decoration: none; }
.button:hover, .button:focus-visible { background: #8af0d8; transform: translateY(-1px); }
.download-actions { display: flex; align-items: center; gap: 28px; margin-top: 28px; }
.qr-card { display: grid; grid-template-columns: 78px auto; align-items: center; gap: 13px; color: var(--muted); font-size: .8rem; font-weight: 700; }
.qr-card img { width: 78px; height: 78px; padding: 6px; border-radius: 10px; background: white; }

.hero-art { aspect-ratio: 1; position: relative; display: grid; place-items: center; }
.hero-art::before { content: ""; position: absolute; inset: 10%; border-radius: 50%; background: radial-gradient(circle, rgba(97,230,199,.2), transparent 68%); }
.radar { position: absolute; border: 1px solid rgba(97,230,199,.27); border-radius: 50%; }
.radar-one { inset: 18%; }
.radar-two { inset: 32%; }
.hero-icon { z-index: 2; width: 58%; aspect-ratio: 1; overflow: hidden; border-radius: 25%; background: #273f4d; filter: drop-shadow(0 24px 38px rgba(0,0,0,.42)); }
.hero-icon img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.08); }

.product { padding: 130px 0; border-top: 1px solid var(--line); }
.section-heading { max-width: 850px; }
.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 64px; }
.features article { padding: 32px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(145deg, rgba(255,255,255,.035), rgba(255,255,255,.01)); }
.features span { color: var(--warm); font-size: .78rem; font-weight: 800; }
.features h3 { margin: 48px 0 12px; }
.features p { color: var(--muted); margin: 0; }
.privacy-callout { padding: 110px 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.privacy-callout p { color: var(--muted); }
.text-link { display: inline-block; color: var(--accent); font-weight: 750; margin-top: 14px; }

.policy { width: min(820px, calc(100% - 40px)); padding: 90px 0 120px; }
.policy h1 { font-size: clamp(2.5rem, 6vw, 4.7rem); }
.policy h2 { font-size: clamp(1.45rem, 3vw, 2rem); margin: 54px 0 14px; }
.policy p, .policy li { color: var(--muted); }
.policy strong { color: var(--ink); }
.policy a { color: var(--accent); }
.policy-intro { font-size: 1.2rem; }
.policy-divider { height: 1px; background: var(--line); margin: 110px 0; }

footer { min-height: 190px; padding: 48px 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr auto auto; align-items: start; gap: 40px; color: var(--muted); }
.ffox-brand { display: inline-flex; width: fit-content; align-items: center; gap: 11px; color: var(--ink); font-size: 1.18rem; font-weight: 900; letter-spacing: .08em; text-decoration: none; }
.ffox-brand img { width: 44px; height: 44px; }
.footer-links { display: grid; gap: 8px; }
footer p { margin: 0; }

@media (max-width: 760px) {
  .site-header { min-height: 72px; }
  nav a:first-child { display: none; }
  .hero { min-height: auto; grid-template-columns: 1fr; gap: 30px; padding: 90px 0 70px; }
  .hero-art { width: min(80vw, 420px); margin: auto; grid-row: 1; }
  .qr-card { display: none; }
  .features, .privacy-callout { grid-template-columns: 1fr; }
  .product, .privacy-callout { padding: 80px 0; }
  footer { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 430px) {
  .site-header, main, footer { width: min(100% - 28px, 1180px); }
  .app-brand { font-size: 1.05rem; }
  .app-icon { width: 40px; height: 40px; border-radius: 12px; }
  nav { gap: 9px; }
  .site-header nav a:not(.language) { display: none; }
  h1 { font-size: 2.65rem; }
  .features article { padding: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}