:root {
  --bg: #f7fbfa;
  --text: #12201e;
  --muted: #5b6b68;
  --green: #0f766e;
  --green-dark: #0a4f4a;
  --line: #dbe7e4;
  --card: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.topbar {
  align-items: center;
  background: rgba(247, 251, 250, 0.94);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 6vw;
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  color: var(--green-dark);
  font-size: 24px;
  font-weight: 800;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 20px;
}

nav a {
  color: var(--muted);
  font-size: 15px;
  text-decoration: none;
}

.hero {
  align-items: center;
  display: grid;
  gap: 52px;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.7fr);
  min-height: 680px;
  padding: 72px 6vw;
}

.eyebrow {
  color: var(--green);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(42px, 7vw, 78px);
  letter-spacing: 0;
  line-height: 0.96;
  margin: 12px 0 24px;
  max-width: 860px;
}

.lead {
  color: var(--muted);
  font-size: 21px;
  max-width: 680px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  border-radius: 8px;
  display: inline-flex;
  font-weight: 700;
  padding: 14px 18px;
  text-decoration: none;
}

.primary {
  background: var(--green);
  color: white;
}

.secondary {
  border: 1px solid var(--line);
  color: var(--green-dark);
}

.phone {
  background: #101010;
  border: 12px solid #242424;
  border-radius: 34px;
  box-shadow: 0 28px 70px rgba(15, 118, 110, 0.25);
  min-height: 500px;
  padding: 22px;
}

.phoneScreen {
  align-items: center;
  background: #000;
  border-radius: 22px;
  color: white;
  display: flex;
  flex-direction: column;
  height: 100%;
  justify-content: center;
  min-height: 430px;
  padding: 28px;
  text-align: center;
}

.lockIcon {
  align-items: center;
  border: 2px solid #fff;
  border-radius: 50%;
  display: flex;
  font-size: 28px;
  font-weight: 800;
  height: 54px;
  justify-content: center;
  width: 54px;
}

.phoneScreen h2 {
  font-size: 26px;
  line-height: 1.15;
}

.phoneScreen button {
  background: white;
  border: 0;
  border-radius: 8px;
  color: #000;
  font-weight: 800;
  margin-top: 24px;
  padding: 13px 16px;
}

.section {
  padding: 68px 6vw;
}

.section h2 {
  font-size: 36px;
  margin-top: 0;
}

.grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}

article h3 {
  margin-top: 0;
}

article p,
.split p,
.legal p {
  color: var(--muted);
}

.split {
  align-items: start;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 32px;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.7fr);
}

.beta {
  align-items: center;
  background: var(--green-dark);
  color: white;
  display: grid;
  gap: 32px;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.45fr);
}

.beta .eyebrow,
.beta p {
  color: #c8f4ec;
}

.beta h2 {
  color: white;
}

.betaPanel {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  display: grid;
  gap: 14px;
  padding: 24px;
}

.betaPanel span {
  color: #dffcf7;
  font-size: 20px;
  font-weight: 800;
}

.betaPanel .primary {
  background: white;
  color: var(--green-dark);
  justify-content: center;
}

.checklist {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin: 0;
  padding: 26px 26px 26px 44px;
}

.checklist li {
  margin: 10px 0;
}

footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  padding: 28px 6vw;
}

.legal {
  max-width: 860px;
  padding: 72px 6vw;
}

@media (max-width: 900px) {
  .hero,
  .split,
  .beta,
  .grid {
    grid-template-columns: 1fr;
  }

  .topbar,
  footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  nav {
    flex-wrap: wrap;
  }
}