:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --surface: #ffffff;
  --ink: #111827;
  --muted: #667085;
  --line: #e5e7eb;
  --accent: #111827;
  --soft: #eef2f7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: var(--bg);
  color: var(--ink);
}

a {
  color: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 5vw, 64px);
  background: rgba(247, 248, 251, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-size: 23px;
  font-weight: 800;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  object-fit: contain;
  background: #fff;
}

nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

nav a {
  text-decoration: none;
}

main {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 74px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  align-items: center;
  gap: clamp(32px, 8vw, 92px);
  padding: 46px 0 76px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: clamp(72px, 14vw, 150px);
  line-height: 0.86;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(30px, 5vw, 56px);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

.lead {
  max-width: 620px;
  margin: 28px 0 0;
  color: #344054;
  font-size: clamp(19px, 2.4vw, 25px);
  line-height: 1.35;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.store-pill {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font-size: 14px;
  font-weight: 800;
}

.phone {
  width: min(100%, 360px);
  min-height: 610px;
  margin-left: auto;
  padding: 18px;
  border: 10px solid #101828;
  border-radius: 44px;
  background: #ffffff;
  box-shadow: 0 28px 80px rgba(16, 24, 40, 0.18);
}

.phone-status {
  width: 92px;
  height: 6px;
  margin: 0 auto 42px;
  border-radius: 999px;
  background: #101828;
}

.reader-card {
  min-height: 330px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px;
  border-radius: 8px;
  background: var(--soft);
}

.reader-kicker {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.reader-card h2 {
  font-size: 34px;
}

.reader-card p:last-child {
  margin: 16px 0 0;
  color: #475467;
  line-height: 1.55;
}

.mini-grid {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.mini-grid span {
  display: block;
  padding: 15px 16px;
  border-radius: 8px;
  background: #101828;
  color: #fff;
  font-size: 14px;
  font-weight: 750;
}

.section {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: clamp(24px, 5vw, 64px);
  padding: 76px 0;
  border-top: 1px solid var(--line);
}

.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.features article,
.support-box {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.features p,
.split p,
.legal p,
.legal li {
  color: #475467;
  line-height: 1.65;
}

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

.legal {
  max-width: 780px;
  padding: 74px 0 88px;
}

.legal h1 {
  margin-bottom: 28px;
  font-size: clamp(44px, 9vw, 82px);
}

.legal h2 {
  margin-top: 34px;
  font-size: 25px;
  line-height: 1.15;
}

.legal ul {
  padding-left: 20px;
}

.support-box {
  margin: 28px 0;
}

footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 32px clamp(18px, 5vw, 64px);
  border-top: 1px solid var(--line);
}

footer p {
  margin: 6px 0 0;
  color: var(--muted);
}

@media (max-width: 860px) {
  .topbar,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    flex-wrap: wrap;
  }

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

  .hero {
    min-height: auto;
    padding-top: 54px;
  }

  .phone {
    margin: 0;
    min-height: 520px;
  }

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