* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: #f5f5f5;
  color: #333;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #00000020, #ffffff20);
  animation: fadeOverlay 6s infinite alternate;
}

.content {
  position: relative;
  text-align: center;
  z-index: 2;
}

h1 {
  font-size: 3rem;
  color: #111;
  margin-bottom: 0.5rem;
}

h2 {
  font-size: 1.5rem;
  color: #555;
  margin-bottom: 1rem;
}

.provisional {
  font-size: 1rem;
  color: #777;
  margin-bottom: 0.3rem;
}

footer {
  margin-top: 2rem;
  font-size: 0.9rem;
  color: #666;
}

footer a {
  text-decoration: none;
  color: #444;
}

footer a:hover {
  text-decoration: underline;
}

.fade-in {
  opacity: 0;
  animation: fadeIn 2s forwards;
}

.fade-in-delay {
  opacity: 0;
  animation: fadeIn 2s forwards 1s;
}

.fade-in-delay-2 {
  opacity: 0;
  animation: fadeIn 2s forwards 2s;
}

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

@keyframes fadeOverlay {
  from { background: linear-gradient(135deg, #00000020, #ffffff40); }
  to { background: linear-gradient(135deg, #00000040, #ffffff20); }
}