* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #ffffff;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 45%, #2563eb 100%);
}

.page {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  width: min(100%, 680px);
  padding: 56px 32px;
  border-radius: 24px;
  text-align: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(12px);
  box-shadow: 0 24px 80px rgba(15, 23, 42, 0.35);
}

.badge {
  display: inline-block;
  margin-bottom: 20px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.16);
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.15;
}

p {
  margin: 0;
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.88);
}

.footer {
  padding: 0 24px 24px;
  text-align: center;
}

.footer a {
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
  text-decoration: none;
}

.footer a:hover {
  color: #ffffff;
  text-decoration: underline;
}

@media (max-width: 640px) {
  .card {
    padding: 40px 24px;
    border-radius: 20px;
  }

  p {
    font-size: 16px;
  }
}