:root {
  color-scheme: light;
  --bg: #f3f5f9;
  --panel: #ffffff;
  --ink: #111827;
  --muted: #4b5563;
  --soft: #6b7280;
  --line: #e1e7ef;
  --accent: #242424;
  --accent-strong: #000000;
  --ok: #285c3a;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Arial, sans-serif;
  background:
    radial-gradient(circle at 18% 0%, rgba(31, 41, 55, 0.14), transparent 34%),
    linear-gradient(180deg, #eef0f3 0%, var(--bg) 48%, #f8fafc 100%);
  color: var(--ink);
}

a {
  color: var(--accent-strong);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.shell {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 800;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.14);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.94rem;
  font-weight: 700;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(31, 41, 55, 0.25);
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  box-shadow: 0 12px 28px rgba(31, 41, 55, 0.22);
}

.button:hover {
  text-decoration: none;
  background: var(--accent-strong);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr);
  gap: 28px;
  align-items: center;
  padding: 50px 0 34px;
}

.hero-copy {
  min-width: 0;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--accent-strong);
  font-size: 0.82rem;
  font-weight: 800;
}

h1 {
  margin: 16px 0 12px;
  font-size: clamp(2.35rem, 6vw, 4.8rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 10px;
  font-size: 1.3rem;
  line-height: 1.25;
}

p,
li {
  color: var(--muted);
  line-height: 1.62;
}

p {
  margin: 0;
}

.lead {
  max-width: 680px;
  font-size: 1.08rem;
}

.meta {
  margin-top: 14px;
  color: var(--soft);
  font-size: 0.94rem;
}

.device {
  justify-self: end;
  width: min(100%, 360px);
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.8);
  box-shadow: var(--shadow);
  padding: 20px;
}

.device-screen {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
  padding: 18px;
}

.app-icon {
  width: 82px;
  height: 82px;
  border-radius: 18px;
  display: block;
  margin-bottom: 18px;
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.16);
}

.mock-line {
  height: 10px;
  margin: 10px 0;
  border-radius: 999px;
  background: #d8e2ef;
}

.mock-line.short {
  width: 58%;
  background: rgba(31, 41, 55, 0.24);
}

.mock-row {
  display: grid;
  grid-template-columns: 1fr 64px;
  gap: 12px;
  align-items: center;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.mock-badge {
  min-height: 34px;
  border-radius: 8px;
  background: #e8f1ff;
}

.band {
  padding: 18px 0;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.04);
}

.summary ul {
  margin: 8px 0 0;
  padding-left: 18px;
}

.summary li {
  margin: 6px 0;
  color: var(--ok);
  font-weight: 700;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.policy {
  display: grid;
  gap: 14px;
  padding: 16px 0 42px;
}

.contact {
  margin-bottom: 56px;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 22px 0 34px;
  color: var(--soft);
  font-size: 0.92rem;
}

@media (max-width: 780px) {
  .shell {
    width: min(100% - 28px, 1040px);
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 28px;
  }

  .device {
    justify-self: stretch;
    width: 100%;
  }

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