body {
  margin: 0;
  padding: 0;
  background: url('background.jpeg') no-repeat center center fixed;
  background-size: cover;
  font-family: sans-serif;
}

.overlay {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  backdrop-filter: blur(3px);
}

form {
  background: rgba(255, 255, 255, 0.85);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 0 10px #333;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

input, button {
  padding: 10px;
  font-size: 16px;
}