body {
    background: #f1f3f6;
}

.login-box {
    max-width: 420px;
    margin: auto;
    margin-top: 7%;
    padding: 35px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0px 4px 12px rgba(0,0,0,0.08);
}