body {
  font-family: Arial, sans-serif;
  background: #0a0a23;
  color: #ffffff;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}
.login-box, .panel {
  background: #111122;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 0 10px cyan;
}
input, button {
  display: block;
  width: 100%;
  padding: 10px;
  margin: 10px 0;
  border: none;
  border-radius: 5px;
}
button {
  background: cyan;
  color: #000;
  font-weight: bold;
}