body {
  margin: 0;
  padding: 0;
  background: linear-gradient(to right, #0f2027, #203a43, #2c5364);
  color: #fff;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  text-align: center;
}

.container {
  max-width: 600px;
  padding: 2rem;
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.3);
}

h1 {
  font-size: 2.4rem;
  margin-bottom: 0.5rem;
}

.icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.loader {
  margin: 1.5rem auto;
  border: 6px solid #ccc;
  border-top: 6px solid #00c9a7;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 1.2s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

footer {
  margin-top: 2rem;
  font-size: 0.85rem;
  opacity: 0.7;
}