body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #eee;
  background: url('../images/background.jpg') no-repeat center center fixed;
  background-size: cover;
}
@keyframes lightningFlash {
  0% { opacity: 1; }
  5% { opacity: 0.2; }
  10% { opacity: 1; }
  15% { opacity: 0.2; }
  20% { opacity: 1; }
  100% { opacity: 1; }
}

.lightning-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(255, 255, 255, 0.1);
  pointer-events: none;
  animation: lightningFlash 5s infinite;
  z-index: 1;
}
.button {
  box-shadow: 0 0 10px #3498db;
}
.button:hover {
  box-shadow: 0 0 20px #2980b9;
}
.hero h2, .banner h2 {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { text-shadow: 0 0 10px #3498db; }
  50% { text-shadow: 0 0 20px #3498db; }
  100% { text-shadow: 0 0 10px #3498db; }
}
.banner {
  padding: 20px;
  text-align: center;
  background: rgba(0,0,0,0.7);
  border-bottom: 2px solid #3498db;
}
.banner img {
  max-width: 100%;
  border-radius: 8px;
}
.banner-buttons {
  margin-top: 15px;
}
.banner-buttons .button {
  margin: 5px;
}
section {
  padding: 40px 20px;
  text-align: center;
  background: rgba(0, 0, 0, 0.5);
  margin: 20px;
  border-radius: 8px;
}
img {
  max-width: 90%;
  border-radius: 8px;
}
.button {
  display: inline-block;
  padding: 12px 24px;
  margin-top: 15px;
  background: #3498db;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  transition: background 0.3s;
}
.button:hover {
  background: #2980b9;
}
.cta {
  background: rgba(0,0,0,0.7);
  border-top: 2px solid #3498db;
}