:root {
  --bg: #faf9f7;
  --text: #1f1f1f;
  --muted: #6b6b6b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161616;
    --text: #f2f2f2;
    --muted: #9a9a9a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 24px;
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
}

h1 {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  margin: 0;
  letter-spacing: -0.02em;
}

.tagline {
  font-size: 1.25rem;
  color: var(--muted);
}

footer {
  text-align: center;
  padding: 24px;
  color: var(--muted);
  font-size: 0.875rem;
}