:root {
  --bg: #f7f6f3;
  --fg: #1c1c1e;
  --muted: #6b6b70;
  --accent: #2f5d8a;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121214;
    --fg: #ececee;
    --muted: #9a9aa0;
    --accent: #7fa8d4;
  }
}

* { box-sizing: border-box; margin: 0; }

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
}

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1rem;
}

.mark {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: var(--bg);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

h1 {
  font-size: clamp(2rem, 6vw, 3.25rem);
  letter-spacing: -0.02em;
}

.tagline {
  margin-top: 0.5rem;
  font-size: 1.125rem;
  color: var(--muted);
}

.status {
  margin-top: 2rem;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}

footer {
  padding: 1.5rem 1rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
}

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