body {
    background: #f2f2f2;
    font-family: Arial;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-container {
    background: white;
    padding: 30px;
    width: 350px;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0,0,0,.2);
}

.logo {
    width: 120px;
    margin-bottom: 10px;
}

.error-box {
    background: #ffdddd;
    padding: 10px;
    color: #a00;
    border-radius: 5px;
    margin-bottom: 15px;
}

form input {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    margin-bottom: 15px;
}

button {
    width: 100%;
    padding: 12px;
    background: #ff5500;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
}