:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --bg: #f5f5f5;
  --card-bg: #ffffff;
  --text: #1a1a1a;
  --text-muted: #555;
  --text-faint: #999;
  --border: rgba(0, 0, 0, 0.08);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: var(--bg);
  color: var(--text);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 24px;
}

.card {
  background: var(--card-bg);
  border-radius: 8px;
  box-shadow: 0 2px 12px var(--border);
  max-width: 560px;
  width: 100%;
  padding: 48px 40px;
  text-align: center;
}

h1 {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.lead {
  font-size: 17px;
  line-height: 1.5;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.note {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.footer {
  font-size: 13px;
  color: var(--text-faint);
  border-top: 1px solid var(--border);
  padding-top: 20px;
}