:root {
  color-scheme: light;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #111;
  background: #f7f7fb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
}

.app {
  min-height: 100vh;
  padding: 3rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.card {
  width: 100%;
  max-width: 720px;
  padding: 2rem;
  border-radius: 24px;
  background: white;
  box-shadow: 0 24px 80px rgba(15, 23, 42, 0.08);
}

h1 {
  margin-top: 0;
  font-size: clamp(2rem, 3vw, 3rem);
}

p {
  line-height: 1.75;
  color: #334155;
}