* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f5f5;
  color: #222;
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(100%, 520px);
  padding: 32px;
  border-radius: 20px;
  background: white;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
  transform: translateY(0) scale(1);
  transition: transform 240ms ease, box-shadow 240ms ease, background 240ms ease;
}

.card.active {
  background: #eef6ff;
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 56px rgba(0, 0, 0, 0.18);
}

.label {
  margin: 0 0 8px;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #666;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(2rem, 6vw, 3.2rem);
}

p {
  line-height: 1.8;
}

button {
  margin-top: 16px;
  padding: 12px 18px;
  border: 0;
  border-radius: 999px;
  background: #222;
  color: white;
  font-weight: 700;
  cursor: pointer;
  transition: transform 160ms ease, opacity 160ms ease;
}

button:hover {
  transform: translateY(-2px);
  opacity: 0.86;
}

button:active {
  transform: translateY(0);
}