body {
  font-family: Arial, sans-serif;
  background: #000;
  color: #fff;
  margin: 0;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

#login-screen {
  text-align: center;
  margin-top: 5rem;
}

input[type="password"] {
  padding: 0.5rem;
  border: none;
  border-radius: 5px;
  margin-right: 10px;
}

button, .btn {
  padding: 0.5rem 1rem;
  background: #fff;
  color: #000;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

#error {
  color: red;
  margin-top: 10px;
}
 

#slider {
  max-width: 90vw;
  max-height: 80vh;
  border: 4px solid #fff;
  border-radius: 10px;
}