:root {
  color-scheme: light;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --line: #d2d2d7;
  --surface: #f5f5f7;
  --accent: #0b0b0d;
  --mono: Menlo, Monaco, "Roboto Mono", "SFMono-Regular", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  color: var(--text);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
  padding: 0 max(22px, calc((100vw - 980px) / 2));
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  backdrop-filter: saturate(180%) blur(20px);
}

.brand {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 22px;
  font-family: var(--mono);
  font-size: 12px;
}

.nav-links a {
  color: var(--text);
}

.hero,
.section,
.legal {
  max-width: 980px;
  margin: 0 auto;
  padding: 84px 22px;
}

.hero {
  min-height: calc(100vh - 52px);
  display: grid;
  place-items: center;
  text-align: center;
}

.hero-inner {
  max-width: 760px;
}

.app-icon {
  width: 126px;
  height: 126px;
  border-radius: 28px;
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.14);
}

.brand-mark {
  width: 132px;
  height: 132px;
  margin: 0 auto;
  display: grid;
  place-content: center;
  justify-content: start;
  gap: 6px;
  padding: 0 26px;
  border-radius: 31px;
  background: var(--accent);
  color: #fff;
  font-family: var(--mono);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 0.98;
  text-align: left;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.16);
}

.brand-mark span {
  display: block;
}

.eyebrow {
  margin: 30px 0 14px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

h1 {
  margin: 0;
  font-size: clamp(48px, 8vw, 86px);
  line-height: 0.96;
  letter-spacing: 0;
  font-weight: 700;
}

h2 {
  margin: 0;
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1.02;
  letter-spacing: 0;
  font-weight: 700;
}

h3 {
  margin: 0 0 10px;
  font-size: 24px;
  letter-spacing: 0;
}

p {
  margin: 0;
  color: var(--muted);
  font-size: 21px;
  line-height: 1.38;
}

.hero p {
  max-width: 720px;
  margin: 24px auto 0;
}

.actions {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-top: 34px;
  font-size: 19px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 24px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.button:hover {
  text-decoration: none;
  background: #2b2b2f;
}

.section {
  border-top: 1px solid var(--line);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 56px;
  align-items: start;
}

.feature-list {
  display: grid;
  gap: 30px;
}

.legal {
  max-width: 760px;
}

.legal h1 {
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1;
}

.legal h2 {
  margin-top: 38px;
  font-size: 24px;
  line-height: 1.18;
}

.legal p,
.legal li {
  font-size: 17px;
  line-height: 1.58;
}

.legal ul {
  margin: 14px 0 0;
  padding-left: 20px;
  color: var(--muted);
}

.meta {
  margin-top: 14px;
  font-size: 15px;
}

.footer {
  padding: 30px 22px 44px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.footer nav {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-bottom: 10px;
}

.footer a {
  color: var(--muted);
}

@media (max-width: 740px) {
  .nav {
    padding-inline: 18px;
  }

  .nav-links {
    gap: 14px;
  }

  .hero,
  .section,
  .legal {
    padding: 64px 20px;
  }

  .hero {
    min-height: auto;
  }

  .split {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .actions {
    flex-direction: column;
    align-items: center;
  }
}