body {
  background: #0a0a0a;
  color: #f0f0f0;
  font-family: Arial, sans-serif;
}

header {
  background: rgba(10,10,10,0.7);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #222;
}

.logo {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  object-fit: cover;
}

nav a {
  color: white;
  margin-left: 20px;
  text-decoration: none;
}

main {
  padding: 40px;
}

.hero {
  height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;

  background:
    radial-gradient(circle at center, rgba(0,240,255,0.08), transparent 60%),
    radial-gradient(circle at top, rgba(155,92,255,0.08), transparent 60%),
    #0a0a0a;

  color: white;
  padding: 20px;
  
  animation: fadeIn 1.2s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero h1 {
  font-size: 72px;
  letter-spacing: 3px;
  text-shadow: 0 0 15px rgba(0,240,255,0.25);
}

.hero p {
  font-size: 18px;
  opacity: 0.7;
  margin-bottom: 30px;
  max-width: 500px;
  line-height: 1.5;
}

.btn {
  padding: 12px 20px;
  background: #00f0ff;
  color: black;
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
  transition: 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
  background: rgba(0,240,255,0.1);
  box-shadow: 0 0 12px rgba(0,240,255,0.4);
}

.btn.secondary:hover {
  background: rgba(0,240,255,0.1);
}

.games {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  padding: 40px;
}

.game-card {
  position: relative;
  background-size: cover;
  background-position: center;
  border-radius: 10px;
  padding: 20px;
  min-height: 200px;
  color: white;
  overflow: hidden;
  transition: 0.2s;
}

.game-card h2,
.game-card p {
  text-shadow: 0 2px 4px rgba(0,0,0,0.8);
  position: relative;
  z-index: 2;
}

.game-card.epsilon {
  background-image: url("epsilon-zero.png");
}

.overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0,0,0,0.8),
    rgba(0,0,0,0.2)
  );
}