body {
  background: linear-gradient(45deg, #000000, #434343, #000000);
  background-size: 400% 400%;
  animation: blackFire 5s infinite ease-in-out;
  text-align: center;
  color: white;
  font: bold 30px Arial;
  overflow: hidden;
  margin: 0;
  position: relative;
  height: 100vh;
}

@keyframes blackFire {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -150%);
  opacity: 0;
  animation: slideDown 1.5s ease-in-out forwards;
}

@keyframes slideDown {
  0% { transform: translate(-50%, -150%); opacity: 0; }
  100% { transform: translate(-50%, -50%); opacity: 1; }
}

.downloadButton {
  display: inline-block;
  margin: 20px;
  padding: 15px 30px;
  font: bold 25px Arial;
  color: white;
  background-color: rgba(255, 255, 255, 0.2);
  border: none;
  border-radius: 20px;
  cursor: pointer;
  transition: background-color 0.5s ease, transform 0.5s ease;
}

.downloadButton:hover {
  background-color: rgba(255, 255, 255, 0.4);
  transform: scale(1.2);
}

img {
  width: 200px;
  height: auto;
  margin-bottom: 20px;
  animation: fadeIn 1.5s ease-in-out forwards;
  opacity: 0;
}

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

.auth-form {
  display: none;
  background-color: rgba(255, 255, 255, 0.2);
  padding: 20px;
  border-radius: 10px;
  width: 300px;
  margin: 0 auto;
  position: relative;
  opacity: 0;
  animation: fadeInForm 1.5s ease-in-out forwards;
}

@keyframes fadeInForm {
  0% { opacity: 0; transform: translateY(-20px); }
  100% { opacity: 1; transform: translateY(0); }
}

.auth-form h2 {
  margin-bottom: 20px;
}

.auth-form textarea {
  width: 200px;
  padding: 10px;
  height: 25px;
  margin: 10px;
  background-color: rgba(0, 0, 0, 0.5);
  border: none;
  border-radius: 5px;
  color: white;
  font-size: 18px;
  resize: none;
  min-height: 30px;
}

.auth-form button {
  padding: 10px;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.2);
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 18px;
}

.auth-form button:hover {
  background-color: rgba(255, 255, 255, 0.4);
}

.close-button {
  position: absolute;
  top: 1px;
  right: 1px;
  width: 25px;
  height: 20px;
  font-size: 18px;
  background-color: red;
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.2s;
}

.close-button:hover {
  background-color: darkred;
}


.top-left-buttons {
  position: absolute;
  top: 20px;
  left: 20px;
  display: flex;
  gap: 10px;
}

.auth-button {
  background-color: rgba(255, 255, 255, 0.2);
  color: white;
  border: none;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  border-radius: 20px;
  transition: background-color 0.5s ease, transform 0.5s ease;
}

.auth-button:hover {
  background-color: rgba(255, 255, 255, 0.4);
  transform: scale(1.1);
}
