/* Grundlegendes Reset */
html,
body {
    height: 100%;
    margin: 0;
    font-family: "Source Sans 3", serif;
    color: #154633;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #154633;
    background: radial-gradient(circle, rgba(21, 70, 51, 1) 0%, rgba(24, 82, 28, 1) 100%);
    display: grid;
    place-items: center;
    /* horizontal & vertikal zentriert */
}

/* Das Modal-Fenster */
.modal-box {
    background: white;
    padding: 30px 15px 70px 15px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
    max-width: 90%;
    width: 350px;
    text-align: center;
}

.modal-box input {
    padding-top: 10px;
    padding-bottom: 10px;
    width: 95%;
    border-radius: 10px;
    border: 1px solid #bfbfbf;
}

.modal-box form {
    text-align: left;
    padding-right: 40px;
    padding-left: 40px;
}

#username {
    margin-bottom: 20px;
    color: lightgrey;
}

#password {
    margin-bottom: 50px;
}

#username,
#password {
    margin-top: 3px;
}


#signInBtn {
    border-radius: 10px;
    padding: 20px 10px 20px 10px;
    width: 100%;
    background-color: #154633;
    color: #fff;
    font-weight: bold;
    font-size: 15px;
}