body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-container {
    background: #fff;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    width: 300px;
}

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

.login-container input[type="text"],
.login-container input[type="password"] {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.login-container button {
    width: 100%;
    padding: 10px;
    background: #3498db;
    border: none;
    color: white;
    border-radius: 4px;
    cursor: pointer;
}

.login-container button:hover {
    background: #2980b9;
}

.error {
    color: red;
    text-align: center;
    margin-bottom: 15px;
}