:root {
  color-scheme: light dark;
  --bg: #0f1216;
  --panel: #171b21;
  --text: #e8ebef;
  --muted: #9aa4b2;
  --accent: #5eead4;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.card {
  max-width: 32rem;
  width: 100%;
  padding: 2.5rem;
  border-radius: 1rem;
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

h1 {
  margin: 0 0 0.75rem;
  font-size: 1.75rem;
  color: var(--accent);
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}