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

body {
  min-height: 100vh;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

.carousel {
  position: fixed;
  inset: 0;
  z-index: -1;
}

.carousel img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}

.carousel img.active {
  opacity: 1;
}

.overlay {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.45);
  color: white;
  text-align: center;
  padding: 20px;
}

.overlay h1 {
  font-size: 4.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
  letter-spacing: 2px;
}

.overlay p {
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 2.5rem;
  opacity: 0.9;
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
}

.enter-btn {
  padding: 1rem 3.5rem;
  font-size: 1.25rem;
  font-weight: 600;
  background: #8FB8A8;
  color: white;
  text-decoration: none;
  border-radius: 10px;
  transition: transform 0.2s, background 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.enter-btn:hover {
  background: #7AA898;
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.enter-btn:active {
  transform: scale(0.98);
}

/* Responsive */
@media (max-width: 768px) {
  .overlay h1 {
    font-size: 2.5rem;
  }

  .overlay p {
    font-size: 1.1rem;
  }

  .enter-btn {
    padding: 0.875rem 2.5rem;
    font-size: 1.1rem;
  }
}