:root {
  --ink: #1d2430;
  --muted: #5b6574;
  --rule: #dfe3ea;
  --paper: #f8f9fb;
  --card: #ffffff;
  --accent: #2f4a6d;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e6e9ee;
    --muted: #9aa3b0;
    --rule: #2c3442;
    --paper: #12161d;
    --card: #1a2029;
    --accent: #6f93c4;
  }
  .logo { filter: brightness(1.9) saturate(0.9); }
}

* { box-sizing: border-box; }

html { background: var(--paper); }

body {
  margin: 0 auto;
  max-width: 46rem;
  padding: 0 1.5rem;
  color: var(--ink);
  font: 1.0625rem/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}

.hero { padding: 5.5rem 0 2rem; text-align: center; }

.logo { width: 96px; height: 96px; }

h1 {
  margin: 1.25rem 0 0;
  font: 400 clamp(2.75rem, 8vw, 4rem)/1.05 var(--serif);
  letter-spacing: -0.01em;
}

.tagline { margin: 0.5rem 0 0; color: var(--accent); font: italic 1.5rem/1.4 var(--serif); }

.intro { margin: 1.75rem auto 0; max-width: 36rem; color: var(--muted); font: 1.1875rem/1.6 var(--serif); text-wrap: balance; }

.soon {
  display: inline-block;
  margin: 2rem 0 0;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--paper);
  font-size: 0.9375rem;
  font-weight: 600;
}

.section-title {
  margin: 3.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sections {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr));
  gap: 0.75rem;
}

.sections li {
  padding: 1rem 1.125rem;
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: var(--card);
  color: var(--muted);
  font-size: 0.9375rem;
}

.sections strong { display: block; margin-bottom: 0.25rem; color: var(--ink); font: 600 1.125rem/1.3 var(--serif); }

.promise { font: 1.1875rem/1.6 var(--serif); }

a { color: var(--accent); }

footer {
  margin-top: 4rem;
  padding: 1.5rem 0 3rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.875rem;
}