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

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at top, #24324f, #0c1220 65%);
  color: #f7f8fc;
}

.card {
  width: min(92vw, 620px);
  padding: 42px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 22px;
  background: rgba(12, 18, 32, 0.82);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(12px);
}

.label {
  margin: 0 0 12px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  opacity: 0.7;
}

h1 {
  margin: 0 0 14px;
  font-size: clamp(2.6rem, 9vw, 5rem);
  line-height: 0.95;
}

p {
  line-height: 1.65;
}

button {
  margin-top: 14px;
  padding: 12px 18px;
  border: 0;
  border-radius: 10px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

pre {
  min-height: 112px;
  margin-top: 18px;
  padding: 16px;
  overflow: auto;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.3);
  white-space: pre-wrap;
}