body { font-family: Arial, sans-serif; background-color: #f4f4f4; display: flex; justify-content: center; align-items: center; height: 100vh; }
.login-container { background-color: white; padding: 40px; border-radius: 8px; box-shadow: 0 4px 10px rgba(0,0,0,0.1); width: 320px; }
.login-container h2 { text-align: center; margin-bottom: 20px; }
.login-container label { display: block; margin-bottom: 5px; }
.login-container input { box-sizing: border-box; width: 100%; padding: 10px; margin-bottom: 15px; border: 1px solid #ddd; border-radius: 4px; }
.login-container button { width: 100%; padding: 10px; background-color: #3498db; color: white; border: none; border-radius: 4px; cursor: pointer; font-size: 16px; }
.login-container .error { color: red; text-align: center; margin-top: 15px; }