:root {
  --ink: #111827;
  --muted: #6b7280;
  --bg: #fefdfb;
  --accent: #ff6b35;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  padding: 2rem;
  font-family: Inter, system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink);
  text-align: center;
}

main { max-width: 34rem; }

.mark {
  font-size: 2.6rem;
  line-height: 1;
  display: block;
  margin-bottom: 1.6rem;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -.035em;
}

p {
  margin: .9rem 0 2rem;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--muted);
}

a {
  color: var(--accent);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 53, .35);
  padding-bottom: 1px;
}

a:hover { border-bottom-color: var(--accent); }

footer {
  font-size: .82rem;
  color: #9ca3af;
}