body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #05010a, #0a0f2c);
  color: #cfcfcf;
}

.topbar {
  text-align: center;
  padding: 25px;
  background: rgba(10,10,30,0.85);
  border-bottom: 1px solid #00f0ff33;
}

.topbar h1 {
  color: #00f0ff;
  text-shadow: 0 0 15px #00f0ff;
  margin: 0;
}

.navbar {
  display: flex;
  justify-content: center;
  gap: 20px;
  padding: 10px;
  background: rgba(5,5,20,0.95);
}

.navbar a {
  color: #aaa;
  text-decoration: none;
  padding: 8px 12px;
  transition: 0.3s;
}

.navbar a:hover {
  color: #ff00ff;
  text-shadow: 0 0 10px #ff00ff;
}

.hero {
  margin: 20px;
  padding: 30px;
  border-radius: 15px;
  background: linear-gradient(135deg, #0a0f2c, #1a0033);
  box-shadow: 0 0 25px #00f0ff33;
}

.hero h2 {
  color: #ff00ff;
  text-shadow: 0 0 10px #ff00ff;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  padding: 20px;
}
.card {
  padding: 20px;
  border-radius: 15px;
  background: rgba(20, 10, 40, 0.85);
  border: 1px solid #00f0ff33;
  transition: 0.3s;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 0 20px #ff00ff55;
}

summary {
  cursor: pointer;
  font-weight: bold;
  color: #00f0ff;
  margin-bottom: 10px;
}

details p {
  margin-top: 10px;
  color: #ccc;
  line-height: 1.5;
}

.card img {
  width: 100%;
  border-radius: 10px;
  margin-top: 10px;
  border: 1px solid #00f0ff33;
}

.button {
  display: inline-block;
  margin-top: 15px;
  padding: 10px 20px;
  background: #00f0ff;
  color: #000;
  text-decoration: none;
  border-radius: 8px;
  box-shadow: 0 0 15px #00f0ff55;
  transition: 0.3s;
}

.button:hover {
  background: #ff00ff;
  box-shadow: 0 0 15px #ff00ff55;
}

footer {
  text-align: center;
  padding: 15px;
  color: #666;
  margin-top: 20px;
}