body {
  margin: 0;
  padding: 0;
  background: url('/img/login-bg.jpeg') no-repeat center center fixed;
  background-size: cover;
  font-family: 'Malgun Gothic', sans-serif;
}

.login-container {
  background: rgba(0, 0, 0, 0.65);
  width: 400px;
  padding: 40px;
  margin: 100px auto;
  border-radius: 12px;
  text-align: center;
  color: white;
  box-shadow: 0 0 20px rgba(0,0,0,0.3);
}

.logo {
  width: 200px;
  margin-bottom: 20px;
}

input {
  display: block;
  width: 100%;
  margin: 15px 0;
  padding: 12px;
  font-size: 1rem;
  border-radius: 6px;
  border: none;
}

button {
  padding: 12px 20px;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  background-color: #1976d2;
  color: white;
  border-radius: 6px;
  transition: background-color 0.3s;
}

button:hover {
  background-color: #1565c0;
}

.error-message {
  margin-top: 10px;
  color: #ff6b6b;
  font-weight: bold;
}