* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  font-family: system-ui, sans-serif;
  color: #172033;
  background: linear-gradient(135deg, #dbeafe, #ede9fe);
}

.card {
  width: min(100%, 520px);
  padding: 40px;
  text-align: center;
  background: white;
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(30, 41, 59, 0.15);
}

.badge {
  display: inline-block;
  padding: 6px 12px;
  color: #5b21b6;
  background: #ede9fe;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

h1 {
  margin: 20px 0 10px;
  font-size: clamp(2rem, 8vw, 3.5rem);
}

p {
  line-height: 1.6;
}

button {
  margin-top: 12px;
  padding: 12px 22px;
  border: 0;
  border-radius: 12px;
  color: white;
  background: #6d28d9;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  background: #5b21b6;
}

button:focus-visible {
  outline: 3px solid #a78bfa;
  outline-offset: 3px;
}

.message {
  min-height: 26px;
  margin-bottom: 0;
  color: #475569;
}