* {
  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: #0f172a;
  color: #e2e8f0;
  padding: 24px;
}

.card {
  width: min(720px, 100%);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  backdrop-filter: blur(8px);
}

.card h1 {
  margin: 0 0 12px 0;
  font-size: clamp(22px, 3.2vw, 34px);
  font-weight: 700;
}

.card p {
  margin: 0;
  opacity: 0.85;
  font-size: 16px;
}