body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f6f7f9;
  color: #222;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 20px;
}

.card {
  background: white;
  border-radius: 16px;
  padding: 24px;
  margin-top: 24px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.button {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 10px;
  background: #111827;
  color: white;
  text-decoration: none;
  font-weight: 600;
}

.button:hover {
  opacity: 0.85;
}