body {
  background-color: #f5f5f5;
  font-family: Arial, sans-serif;
}

.login-container {
  width: 300px;
  margin: 100px auto;
  background-color: #fff;
  border: 1px solid #ccc;
  padding: 20px;
  border-radius: 5px;
}

h2 {
  text-align: center;
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 10px;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
  margin-bottom: 15px;
}

button[type="submit"] {
  width: 100%;
  background-color: #4CAF50;
  color: #fff;
  padding: 10px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

button[type="submit"]:hover {
  background-color: #45a049;
}

.error-msg {
  color: red;
  text-align: center;
  margin-bottom: 10px;
}

.loader {
  border: 5px solid #f3f3f3;
  border-top: 5px solid #3498db;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  animation: spin 1s linear infinite;
  margin: 0 auto;
  display: none;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}