body {
  background: linear-gradient(135deg,#2563eb,#7c3aed);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: Arial, sans-serif;
}

.container {
  width: 360px;
  background: rgba(255,255,255,0.15);
  padding: 20px;
  border-radius: 16px;
  color: #fff;
}

.card {
  background: rgba(255,255,255,0.2);
  padding: 15px;
  border-radius: 12px;
  margin-bottom: 15px;
}

input, select, button {
  width: 100%;
  padding: 10px;
  margin-top: 8px;
  border-radius: 10px;
  border: none;
}

button {
  background: #22c55e;
  color: white;
  font-weight: bold;
  cursor: pointer;
}

button.danger {
  background: #ef4444;
}

button.info {
  background: #f59e0b;
}

.output {
  text-align: center;
  font-weight: bold;
}