:root {
  color-scheme: light dark;
  --bg: #0f172a;
  --card-bg: #1e293b;
  --text: #f1f5f9;
  --accent: #f6821f;
}

* {
  box-sizing: border-box;
}

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

.card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 2.5rem 3rem;
  max-width: 32rem;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

h1 {
  margin-top: 0;
  font-size: 1.75rem;
}

.meta {
  color: var(--accent);
  font-weight: 600;
}

.timestamp {
  font-size: 0.85rem;
  opacity: 0.7;
}