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

.container {
    width: 100%;
    margin-top: 100px;
    display: flex;
    justify-content: center;
}

.login-box {
    width: 350px;
    padding: 30px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 0 10px #cccccc;
}

.login-box h2 {
    text-align: center;
}

.login-box input {
    width: 100%;
    margin-top: 10px;
    padding: 10px;
    box-sizing: border-box;
}

.login-box button {
    width: 100%;
    margin-top: 20px;
    padding: 10px;
    border: none;
    background: #0066cc;
    color: white;
    cursor: pointer;
}

.login-box button:hover {
    background: #0052a3;
}

.error {
    color: red;
    margin-bottom: 10px;
}