body {
  font-family: Arial, sans-serif;
  margin: 0; padding: 0;
  background: #0a0e14; color: #e6edf3;
}
header {
  background: #121821;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
}
header h1 { margin: 0; }
nav a {
  color: #7ce7a2; margin-left: 1rem;
  text-decoration: none;
}
.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem; padding: 1rem;
}
.game-card {
  background: #1a2230;
  padding: 1rem; border-radius: 8px;
  text-align: center;
}
.game-card h3 { margin-top: 0; }
.ad-slot {
  background: #0f1521;
  text-align: center;
  padding: 0.5rem;
  margin: 1rem 0;
  border: 1px dashed #25344a;
}
footer {
  background: #121821;
  padding: 1rem; text-align: center;
}