body {
  font-family: Arial, sans-serif;
  background: #f4f7f8;
  color: #333;
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

#login-form, #register-form {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 0 12px rgba(0,0,0,0.1);
  width: 100%;
  max-width: 400px;
}

input[type="text"], input[type="password"] {
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.25rem;
  box-sizing: border-box;
}

button {
  margin-top: 1.5rem;
  padding: 0.75rem 1rem;
  background: #28a745;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-weight: bold;
}

button:hover {
  background: #1e7e34;
}