/* login/logout button - top left corner */
#login-btn {
    position: fixed;
    top: 10px;
    right: 10px;
    z-index: 1000;
    font-size: 0.75rem;
    cursor: pointer;
}

/* dialog overlay */
#login-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

#login-overlay.active {
    display: flex;
}

/* dialog box */
#login-dialog {
    background: #111;
    border: #555 solid 1px;
    padding: 20px;
    min-width: 260px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#login-dialog h3 {
    margin: 0 0 5px 0;
    padding: 0;
    font-size: 1rem;
    letter-spacing: 1px;
}

#login-username {
    width: 100%;
    box-sizing: border-box;
}

#login-username:focus {
    outline: none;
}

#login-submit {
    width: 100%;
    cursor: pointer;
}