:root {
  color-scheme: light dark;
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1c1f24;
  --accent: #4f6bed;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --card: #181b21;
    --text: #e8eaee;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, sans-serif;
}

.card {
  max-width: 420px;
  padding: 32px;
  border-radius: 16px;
  background: var(--card);
  box-shadow: 0 10px 30px rgb(0 0 0 / 0.08);
  text-align: center;
}

.badge {
  display: inline-block;
  margin: 0;
  padding: 4px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
}

button {
  margin-top: 8px;
  padding: 10px 18px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  cursor: pointer;
}