body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(to bottom, #fff, #d8c4f0);
  overflow: hidden;
}

header h1 {
  text-align: center;
  color: #6a1b9a;
  margin-top: 20px;
}

.rings-barrier {
  background: url('rings.svg') no-repeat center;
  height: 100px;
}

.floating-objects img {
  position: absolute;
  animation: floatUp 10s infinite ease-in-out;
}

@keyframes floatUp {
  0% { transform: translateY(100vh); }
  100% { transform: translateY(-100vh); }
}

#password-screen {
  text-align: center;
  margin-top: 100px;
}

input[type="password"] {
  padding: 10px;
  font-size: 16px;
}