html{
        background-color: black;
    }
    body{
        margin: 0;
        padding: 0;
        font-family: Verdana, Arial;
        font-size: 16px;
        background-color: white;
        max-width: 768px;
        margin: 0 auto;
    }

    #templates, .hidden{
        display: none;
    }

    .inner-screen{
        position: relative;
        width: 100%;
        min-height: calc( 100vh - 4em );
        display: inline-block;
    }
    
    .tray-btn{
        background-color: cyan;
        width: 5em;
        border-radius: .75em;
        text-align: center;
        border-left: solid #006d6d 1px;
        border-bottom: solid #006d6d 1px;
        float: left;
        height: 1.5em;
        margin-top: .75em;
    }
    .tray-btn img{
        width: 1.5em;
        /*margin-top: .25em;*/
    }

    
    .bck-btn{
        width: 2em;
        aspect-ratio: 1/1;
        background-repeat: no-repeat;
        background-size: contain;
    }

    .blink_me {
        animation: blinker 1s linear infinite;
    }
    @keyframes blinker {
        50% {
            opacity: 0;
        }
    }

    /* colors */
    .verylightgrey{
        cursor: default;
        background-color: light-dark(rgba(239, 239, 239, 0.3), rgba(59, 59, 59, 0.3));
        color: light-dark(rgb(84, 84, 84), rgb(170, 170, 170));
        border-color: rgba(118, 118, 118, 0.3);
    }
    .half-green{
        /*background-image: linear-gradient(to right, lightgreen, white, white);*/
        background-image: linear-gradient(to right, lightgreen, lightgreen, white, white);
    }
    :root{
        --blue: #264680;
        --verylightgrey: #e3e3e3;
        --softgrey: #a2a2a2;            /* disable, offf */
        --grey: #808080;
        --lightgreen: #90ee90;
        --halfgreen: linear-gradient(to right, lightgreen, lightgreen, white, white);
    }

    /*  hide spinner in input numeric  */
    input[type="number"]::-webkit-outer-spin-button,
    input[type="number"]::-webkit-inner-spin-button {
        -webkit-appearance: none;
        margin: 0;
    }
    input[type="number"] {
        -moz-appearance: textfield;
    }

    .semi-box, .bubble{
        border: solid 1px var(--blue);
        border-radius: 1em;
    }
    .bubble{
        background-color: white;
        padding-left: 1em;
        padding-right: 1em;
        display: inline;
        margin-top: -.75em;
        position: absolute;
    }
    .semi-box{
        float: left;
        position: relative;
        width: calc( 100% - 2em );
        margin-left: 1em;
    }

    /*  generic section model box */
    .section{
        position: relative;
        float: left;
        width: 100%;
        margin-top: 1em;

        min-height: 10em;
        /*background-color: yellow;*/
        /*margin-bottom: 2em;*/
    }
    .section-knob{
        position: absolute;
        height: 1.8em;
        width: 1.8em;
        /* aspect-ratio: 1 / 1; */
        left: 2em;
        top: 1em;
        background-color: white;
        border: solid 1px var(--blue);
        border-radius: 50%;
        
        z-index: 1;
    }
    .section-knob img{
        width: 100%;
        
    }
    .section-title{
        color: white;
        background-image: linear-gradient(to right, lightgreen , white);
        padding-left: 0.5em;
    }
    .section-cont{
        position: relative;
        float: left;
        /*min-height: 6em;*/
        
        margin-left: 1em;
        margin-top: 2em;
    }
    .section-container-openclose{
        /*background-color: white;*/
        width: calc( 100% - 2em );
        border: solid 1px var(--blue);
        border-radius: 1em;
        display: none;
    }
    .section-bubble, .section-bubble-right{
        height: 2em;
        position: absolute;
        top: -1em;
        background-color: white;
        border: solid 1px var(--blue);
        border-radius: 1em;
        padding-left: 0.5em;
        padding-right: 0.5em;
        font-size: 0.8em;
        line-height: 2em;
    }
    .section-bubble{
        left: 6em;
    }
    .section-bubble-right{
        left: unset;
        right: 2em;
    }
    .section-box{
        margin-top: 1.5em;
        margin-left: 0.5em;
        width: calc( 100% - 1em );
        /* background-color: yellow; */
        /* min-height: 3em; */
    }
    .section-row{
        display: flex;
        justify-content: space-evenly;
        align-items: center;
    }
    .section-msg{
        width: 80%;
        margin-left: 10%;
        font-size: .8em;
        font-style: italic;
        margin-bottom: 0.5em;
    }

    .img-btn{
        width: 1.5em;
        /*aspect-ratio: 1 / 1;*/
        height: 1.5em;
        float: 1;
    }
    .img-btn img{
        width: 100%;
    }

    .img-btn2, .img-btn2-c{
        width: 2em;
        /*aspect-ratio: 1 / 1;*/
        height: 2em;
        float: 1;
    }
    .img-btn2-c{
        align-items: center;
        display: flex;
    }
    .img-btn2 img, .img-btn2-c img{
        width: 100%;
    }

    /* x: no borders  */
    .box-x1{
        margin-top: 1.5em;
        margin-left: 1em;
        width: calc( 100% - 2em );
        /*background-color: yellow;*/
    }
    .input-x5{
        /*flex: 1 1 auto;*/
        /*margin-left: .5em;*/
        /*width: 80%;*/
    }
    .row-x{
        float: left;
        width: 100%;
        margin-top: .5em;
    }
    .disp-shade{
        background-color: var( --verylightgrey );
        border: solid 1px var( --grey );
        padding-left: 0.3em;
        padding-right: 0.3em;
    }

    .btns-grp-box{
        margin-right: .5em;
        display: inline;
        display: none;
    }
    .btns-grp-btn{
        float: right;
        margin-left: 2em;
        width: 1.5em;
        height: 1.5em;
        border: solid 1px var(--blue);
        border-radius: 50%;
        background-color: white;
    }
    .btns-grp-btn img{
        width: 100%;
    }