/* Change the background of the entire login page */
body.login {
    background-image: url('login-bg.jpg');
    background-size: cover;
    background-position: center;
}

/* Change the default WordPress logo to your own */
.login h1 a {
    background-image: url('site-logo.png') !important;
    background-size: contain !important;
    width: 100% !important;
    height: 80px !important;
}

/* Style the login form box */
.login form {
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

/* Style the main submit button */
.login .button-primary {
    background: #0073aa !important;
    border-color: #0073aa !important;
    text-shadow: none !important;
}