* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
  background-color: #f5f5f5;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.login-container {
  width: 100%;
  max-width: 400px;
  padding: 20px;
}

.login-box {
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  padding: 40px;
  text-align: center;
}

.login-box h1 {
  margin-bottom: 24px;
  color: #333;
  font-size: 24px;
}

.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  color: #555;
  font-size: 14px;
}

.form-group input {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
  transition: border-color 0.2s;
}

.form-group input:focus {
  border-color: #007bff;
  outline: none;
}

.login-button {
  width: 100%;
  padding: 12px;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.login-button:hover {
  background-color: #0056b3;
}

.error-message {
  margin-top: 20px;
  color: #dc3545;
  font-size: 14px;
  text-align: center;
}