* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #0f172a, #1e293b);
}

.container {
  text-align: center;
}

.card {
  background: rgba(255, 255, 255, 0.08);
  padding: 40px;
  border-radius: 16px;
  backdrop-filter: blur(10px);
  color: white;
  width: 300px;
}

h1 {
  font-size: 28px;
  margin-bottom: 10px;
}

p {
  margin-bottom: 20px;
  opacity: 0.8;
}

button {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: #3b82f6;
  color: white;
  transition: 0.3s;
}

button:hover {
  background: #2563eb;
  transform: scale(1.05);
}