body {
  margin: 0;
  background: #000;
  color: #c0c0c0;
  font-family: 'Open Sans', sans-serif;
}

#starfield {
  position: fixed;
  top: 0;
  left: 0;
  z-index: -1;
  width: 100vw;
  height: 100vh;
  background: black;
  display: block;
}

.content-wrapper {
  position: relative;
  z-index: 1;
  padding: 2rem;
}

h1 {
  text-align: center;
  color: #ccc;
  text-shadow: 0 0 4px #000;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  padding: 2rem 0;
}

.ai-card {
  display: block;
  text-align: center;
  background: rgba(0,0,0,0.9);
  border: 1px solid #555;
  border-radius: 8px;
  padding: 1rem;
  color: #7e82b7;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.25s ease;
}

.ai-card:hover {
  background: rgba(124, 0, 0, 0.75);
  color: #fff;
  text-shadow: 0 0 6px #ffffffaa;
  box-shadow: 0 0 10px rgba(255,255,255,0.1);
}
.ai-card:active {
  background: rgba(124, 0, 0, 1);
}
footer {
  text-align: center;
  padding: 1em;
  font-size: 0.9em;
}
footer a {
  color: red;
}