:root {
  color-scheme: dark;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #f8fafc;
  background-color: #0d0b1e;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, #3f2f74 0%, #0d0b1e 35%, #070514 100%);
  color: #eef2ff;
}

a {
  color: #c4b5fd;
  text-decoration: none;
}

a:hover {
  color: #f8fafc;
}

.page {
  width: min(1100px, 100%);
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding-bottom: 24px;
}

.brand {
  margin: 0;
  font-size: clamp(1.5rem, 2vw, 2.2rem);
  letter-spacing: -0.03em;
}

.nav-links {
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
}

.hero {
  display: grid;
  gap: 32px;
  align-items: center;
  grid-template-columns: 1.2fr 0.9fr;
}

.hero-copy {
  max-width: 620px;
}

.hero-headline {
  display: flex;
  align-items: center;
  gap: 18px;
}

.app-icon {
  width: 84px;
  height: 84px;
  min-width: 84px;
  border-radius: 24px;
  background: linear-gradient(135deg, #7c3aed 0%, #2563eb 100%);
  padding: 14px;
  box-shadow: 0 18px 40px rgba(124, 58, 237, 0.22);
}
  letter-spacing: 0.08em;
}

.hero-title {
  margin: 0;
  font-size: clamp(2.5rem, 4vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
}

.hero-copy p {
  margin: 24px 0 0;
  max-width: 640px;
  color: #dbeafe;
  font-size: 1.05rem;
}

.hero-actions {
  margin-top: 30px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.button-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 24px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.16);
  background: linear-gradient(135deg, #7c3aed 0%, #2563eb 100%);
  color: #ffffff;
  font-weight: 700;
  box-shadow: 0 18px 40px rgba(124, 58, 237, 0.22);
}

.section-card,
.policy-card,
.feature-card {
  background: rgba(15, 23, 42, 0.78);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 28px;
  padding: 30px;
  box-shadow: 0 28px 80px rgba(15, 23, 42, 0.35);
}

.hero-card {
  width: 100%;
  display: flex;
  justify-content: center;
}

.device-frame {
  width: min(100%, 420px);
  border-radius: 40px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.98), rgba(30, 41, 59, 0.88));
  padding: 28px;
  min-height: 480px;
  box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.05);
}

.device-screen {
  width: 100%;
  height: 100%;
  border-radius: 28px;
  background: radial-gradient(circle at top, rgba(79, 70, 229, 0.18), transparent 40%),
    linear-gradient(180deg, #111827 0%, #0f172a 100%);
  display: grid;
  place-items: center;
  padding: 24px;
  color: #e2e8f0;
  text-align: center;
}

.features {
  margin-top: 56px;
  display: grid;
  gap: 24px;
}

.feature-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.feature-card h3,
.policy-card h2,
.section-card h2 {
  margin-top: 0;
  font-size: 1.3rem;
}

.feature-card p,
.policy-card p,
.section-card p {
  color: #cbd5e1;
  margin: 14px 0 0;
}

.footer {
  margin-top: 60px;
  padding-top: 20px;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  color: #94a3b8;
  font-size: 0.95rem;
}

.footer a {
  color: #c7d2fe;
}

.policy-content {
  display: grid;
  gap: 18px;
}

.policy-content h3 {
  margin: 0;
  font-size: 1.1rem;
  color: #e2e8f0;
}

@media (max-width: 880px) {
  .hero {
    grid-template-columns: 1fr;
  }
}