body {
  margin: 0;
  background-color: #000;
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
  font-family: Arial, sans-serif;
  position: relative;
}

#start-button {
  font-size: 2rem;
  cursor: pointer;
  padding: 20px 40px;
  border: 2px solid white;
  border-radius: 10px;
  transition: 0.3s ease;
}

#start-button:hover {
  background-color: white;
  color: black;
}

#image-container {
  display: none;
  margin-top: 20px;
  animation: fadeIn 1.5s ease-in-out forwards;
}

#main-image {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 15px;
}

/* Cihaz yönüne göre döndür */
@media (min-width: 768px) {
  #main-image {
    transform: rotate(-90deg);
  }
}

@keyframes fadeIn {
  0% { opacity: 0; transform: scale(0.8); }
  100% { opacity: 1; transform: scale(1); }
}

#footer {
  position: absolute;
  bottom: 10px;
  font-size: 0.9rem;
  color: #aaa;
  text-align: center;
  width: 100%;
  opacity: 0.7;
}