:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface-soft: #eef1f7;
  --text: #172033;
  --muted: #667085;
  --primary: #0689ff;
  --primary-dark: #0068e8;
  --accent: #20d6d0;
  --line: #e4e7ec;
  --shadow: 0 18px 50px rgba(23, 32, 51, 0.10);
  --radius: 24px;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 0%, rgba(6,137,255,.14), transparent 34%),
    radial-gradient(circle at 95% 15%, rgba(32,214,208,.12), transparent 28%),
    var(--bg);
  line-height: 1.6;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
.container { width: min(calc(100% - 32px), var(--max)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(247,248,251,.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(228,231,236,.75);
}
.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -.02em;
}
.brand img { width: 42px; height: 42px; border-radius: 12px; box-shadow: 0 8px 22px rgba(6,137,255,.20); }
.nav-links { display: flex; gap: 22px; align-items: center; }
.nav-links a { text-decoration: none; color: var(--muted); font-weight: 600; font-size: .95rem; }
.nav-links a:hover { color: var(--text); }

.hero {
  padding: 86px 0 54px;
  display: grid;
  grid-template-columns: 1.12fr .88fr;
  align-items: center;
  gap: 60px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border-radius: 999px;
  background: rgba(6,137,255,.11);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: .88rem;
}
.badge-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px rgba(20,184,166,.12); }
h1 {
  margin: 22px 0 18px;
  font-size: clamp(2.65rem, 7vw, 5.2rem);
  line-height: .98;
  letter-spacing: -.06em;
  max-width: 800px;
}
.hero-lead {
  max-width: 680px;
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  color: var(--muted);
}
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 750;
  border: 1px solid var(--line);
}
.button-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border: 0;
  box-shadow: 0 14px 30px rgba(6,137,255,.28);
}
.button-secondary { background: rgba(255,255,255,.75); }

.phone-card {
  position: relative;
  min-height: 520px;
  display: grid;
  place-items: center;
}
.glow {
  position: absolute;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(6,137,255,.28), rgba(32,214,208,.24));
  filter: blur(12px);
}
.phone {
  position: relative;
  width: min(330px, 86vw);
  padding: 18px;
  border-radius: 44px;
  background: #111827;
  box-shadow: 0 35px 85px rgba(15,23,42,.35);
  transform: rotate(2deg);
}
.phone-screen {
  min-height: 490px;
  border-radius: 31px;
  padding: 26px;
  background:
    radial-gradient(circle at 85% 0%, rgba(32,214,208,.25), transparent 36%),
    linear-gradient(155deg, #ffffff, #ecf9ff);
}
.icon-wrap { display: flex; justify-content: center; margin-top: 30px; }
.icon-wrap img { width: 120px; height: 120px; border-radius: 30px; box-shadow: 0 18px 40px rgba(79,70,229,.22); }
.mini-title { font-size: 1.55rem; font-weight: 850; margin: 24px 0 6px; text-align: center; }
.mini-copy { color: var(--muted); text-align: center; margin: 0 0 24px; }
.mini-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.mini-tile {
  padding: 16px 13px;
  background: rgba(255,255,255,.82);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 18px;
  font-weight: 750;
  font-size: .92rem;
  box-shadow: 0 9px 25px rgba(23,32,51,.06);
}

.section { padding: 72px 0; }
.section-head { max-width: 720px; margin-bottom: 34px; }
.eyebrow { color: var(--primary); font-weight: 800; text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; }
h2 { font-size: clamp(2rem, 4vw, 3.15rem); line-height: 1.08; letter-spacing: -.045em; margin: 10px 0 12px; }
.section-head p { color: var(--muted); font-size: 1.08rem; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  padding: 26px;
  border: 1px solid rgba(228,231,236,.9);
  border-radius: var(--radius);
  background: rgba(255,255,255,.84);
  box-shadow: 0 12px 35px rgba(23,32,51,.06);
}
.card-icon {
  width: 46px; height: 46px; border-radius: 14px;
  display: grid; place-items: center;
  background: rgba(6,137,255,.11);
  font-size: 1.35rem;
}
.card h3 { margin: 18px 0 8px; font-size: 1.18rem; }
.card p { margin: 0; color: var(--muted); }

.security {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 38px;
  align-items: center;
  padding: 42px;
  background: linear-gradient(145deg, #182033, #28314b);
  color: white;
  border-radius: 34px;
  box-shadow: var(--shadow);
}
.security p { color: #cbd5e1; }
.security-list { display: grid; gap: 14px; }
.security-item {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 15px;
  border-radius: 16px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.09);
}
.check {
  flex: 0 0 24px; width: 24px; height: 24px; border-radius: 50%;
  display: grid; place-items: center; background: rgba(32,214,208,.25); color: #a7fff6; font-weight: 900;
}

.cta {
  text-align: center;
  padding: 56px 28px;
  border-radius: 32px;
  background: linear-gradient(135deg, rgba(6,137,255,.11), rgba(32,214,208,.12));
  border: 1px solid var(--line);
}
.cta p { color: var(--muted); max-width: 650px; margin: 0 auto 24px; }

footer { padding: 38px 0 46px; border-top: 1px solid var(--line); color: var(--muted); }
.footer-grid { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--text); }

.page-hero { padding: 72px 0 30px; }
.content-page {
  max-width: 820px;
  margin: 0 auto 80px;
  padding: 34px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 0 14px 40px rgba(23,32,51,.05);
}
.content-page h2 { font-size: 1.5rem; margin-top: 34px; }
.notice {
  padding: 16px 18px;
  border-radius: 14px;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: #9a3412;
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 58px; gap: 28px; }
  .phone-card { min-height: 480px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .security { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav-links a:not(.keep-mobile) { display: none; }
  .hero { padding-top: 42px; }
  .feature-grid { grid-template-columns: 1fr; }
  .security { padding: 26px; }
  .footer-grid { flex-direction: column; }
  .content-page { padding: 24px; }
}

.brand img,
.icon-wrap img {
  object-fit: cover;
}