:root {
  color-scheme: light dark;
  --bg: #f6f8fb;
  --fg: #0f1a2b;
  --muted: #4a5a70;
  --accent: #0e7490;
  --card: #ffffff;
  --line: #d8e0ea;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #050b18;
    --fg: #e6edf7;
    --muted: #9fb0c6;
    --accent: #67e8f9;
    --card: #0d1a30;
    --line: #1f3150;
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 "Segoe UI", system-ui, -apple-system, sans-serif;
}

main {
  width: 100%;
  max-width: 560px;
  padding: 40px 32px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  text-align: center;
}

.mark { display: block; margin: 0 auto 16px; border-radius: 22px; }

h1 { margin: 0 0 12px; font-size: 2rem; letter-spacing: -0.01em; }

.lead { margin: 0 0 16px; color: var(--muted); }

.status { margin: 0 0 24px; font-weight: 600; }

dl {
  display: grid;
  grid-template-columns: auto auto;
  justify-content: center;
  gap: 6px 16px;
  margin: 0;
  text-align: left;
}

dt { color: var(--muted); }

dd { margin: 0; }

a { color: var(--accent); }

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

@media (max-width: 480px) {
  main { padding: 28px 20px; }
  dl { grid-template-columns: 1fr; text-align: center; }
  dd { margin-bottom: 8px; }
}