:root {
  --bg: #f5f3ef;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #6b7280;
  --accent: #003e80;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--text);
}

.card {
  background: var(--card);
  border-radius: 22px;
  padding: 3rem 2.5rem;
  max-width: 520px;
  width: 90%;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0,0,0,0.08);
}

.emoji {
  font-size: 3.5rem;
}

h1 {
  margin: 0.5rem 0;
  font-size: 4rem;
  color: var(--accent);
}

h2 {
  font-weight: 400;
  margin-bottom: 1.5rem;
}

p {
  color: var(--muted);
  line-height: 1.6;
}

a.btn {
  display: inline-block;
  margin-top: 2rem;
  padding: 0.75rem 1.8rem;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}