:root {
  color-scheme: light;
  --bg: #f7fbff;
  --surface: #ffffff;
  --ink: #172033;
  --muted: #667085;
  --line: #dbe7f3;
  --blue: #70b7ff;
  --pink: #ff9fdc;
  --purple: #b7a2ff;
  --shadow: 0 18px 50px rgba(33, 54, 83, 0.12);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 0%, rgba(112, 183, 255, 0.28), transparent 30rem),
    radial-gradient(circle at 92% 8%, rgba(255, 159, 220, 0.30), transparent 28rem),
    var(--bg);
  line-height: 1.7;
}

a {
  color: inherit;
}

.shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 20px 56px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 44px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  box-shadow: 0 10px 24px rgba(33, 54, 83, 0.18);
}

.nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 15px;
}

.nav a {
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 42px;
  align-items: center;
  min-height: 62vh;
}

.hero h1 {
  max-width: 680px;
  margin: 0;
  font-size: clamp(40px, 7vw, 74px);
  line-height: 1.05;
  letter-spacing: 0;
}

.lead {
  max-width: 620px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2.4vw, 22px);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 10px 26px rgba(33, 54, 83, 0.08);
}

.button.primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--blue), var(--pink));
}

.phone {
  position: relative;
  max-width: 340px;
  margin-left: auto;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 34px;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
}

.phone-screen {
  min-height: 520px;
  padding: 26px 22px;
  border-radius: 26px;
  background: linear-gradient(160deg, #cfe8ff 0%, #ffd2ef 100%);
}

.app-icon {
  width: 92px;
  height: 92px;
  border-radius: 24px;
  box-shadow: 0 18px 42px rgba(33, 54, 83, 0.22);
}

.mock-title {
  margin: 22px 0 18px;
  font-size: 30px;
  font-weight: 850;
}

.mock-list {
  display: grid;
  gap: 12px;
}

.mock-row {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 64px;
  padding: 12px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
  font-weight: 750;
}

.mock-row span {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 14px;
  background: #fff;
}

.section {
  margin-top: 72px;
}

.section h2,
.policy h1 {
  margin: 0 0 14px;
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.18;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.card {
  min-height: 176px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 14px 38px rgba(33, 54, 83, 0.08);
}

.card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.card p,
.policy p,
.policy li {
  color: var(--muted);
}

.policy {
  max-width: 780px;
}

.updated {
  margin: 0 0 30px;
}

.policy h2 {
  margin: 34px 0 8px;
  font-size: 23px;
}

.policy ul {
  padding-left: 24px;
}

.footer {
  margin-top: 72px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 820px) {
  .topbar {
    margin-bottom: 24px;
  }

  .hero,
  .grid {
    grid-template-columns: 1fr;
  }

  .phone {
    width: 100%;
    max-width: none;
    margin: 0;
  }

  .phone-screen {
    min-height: 420px;
  }

  .nav {
    gap: 12px;
    font-size: 14px;
  }
}