body {
  margin: 0;
  font-family: 'Roboto', sans-serif;
  background: linear-gradient(135deg, #0a0a2a, #1e1e4a, #0a0a2a);
  color: #f0f0f0;
  overflow-x: hidden;
}
header {
  position: relative;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center/cover;
  background-attachment: fixed;
}
header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(5px);
}
h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: 3rem;
  color: #ffcc00;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
  z-index: 1;
}
section {
  padding: 40px 20px;
  position: relative;
}
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}
.card {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  padding: 20px;
  transition: transform 0.3s ease-in-out;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
}
.card:hover {
  transform: translateY(-10px);
}
pre {
  background: rgba(0, 0, 0, 0.7);
  padding: 15px;
  border-radius: 5px;
  overflow-x: auto;
}
code {
  color: #ffcc00;
  font-size: 0.9em;
}
footer {
  text-align: center;
  padding: 20px;
  background: linear-gradient(to right, #1e1e4a, #0a0a2a);
}
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  section { padding: 20px; }
}
@keyframes aurora-move {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}