:root {
  --bg: #f7faf8;
  --surface: #ffffff;
  --text: #15386d;
  --heading: #102b52;
  --muted: #5f6f80;
  --accent: #69c33f;
  --line: rgba(21, 56, 109, 0.1);
  --shadow: 0 18px 60px rgba(20, 52, 94, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(105, 195, 63, 0.08), transparent 32%),
    linear-gradient(180deg, #fbfdfc 0%, var(--bg) 100%);
}

.landing {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
}

.card {
  width: min(720px, 100%);
  padding: 40px 32px;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.logo {
  display: block;
  width: min(100%, 520px);
  margin: 0 auto 24px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 18px;
  color: var(--heading);
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.08;
}

.lead,
.supporting {
  margin: 0 auto;
  max-width: 58ch;
  color: var(--muted);
  line-height: 1.7;
}

.lead {
  margin-bottom: 12px;
  font-size: 1.06rem;
}

@media (max-width: 640px) {
  .card {
    padding: 28px 20px;
    border-radius: 18px;
  }

  .logo {
    margin-bottom: 20px;
  }
}