body {
  margin: 0;
  font-family: Arial;
  background: linear-gradient(135deg,#0f172a,#1e293b);
  color: white;
  text-align: center;
}

.container {
  padding: 20px;
}

h1 {
  color: #38bdf8;
}

.card {
  background: rgba(255,255,255,0.05);
  padding: 20px;
  border-radius: 15px;
  margin: 20px;
  backdrop-filter: blur(10px);
}

button {
  padding: 12px 20px;
  margin: 10px;
  border: none;
  border-radius: 10px;
  background: #38bdf8;
  color: black;
  font-weight: bold;
}

button:hover {
  background: #0ea5e9;
  cursor: pointer;
}

.footer {
  margin-top: 20px;
  font-size: 12px;
  opacity: 0.7;
}