@media screen {

   
   
    /*** canvas ***/

    /* our canvas will have the size of our window */
    #canvas {
        
        top: 0;
        right: 0;
        left: 0;
        height: 100vh;
        z-index: 1;
    }

    /*** content ***/

    #content {
        position: relative;
        z-index: 2;
        overflow: hidden;
    }

    #title {
      
        top: 20px;
        right: 20px;
        left: 20px;
        z-index: 1;
        pointer-events: none;
        font-size: 1.5em;
        line-height: 1;
        margin: 0;
        text-transform: uppercase;
        color: white;
        text-align: center;
    }

    #planes {
        width: calc(((100vw / 1.75) + 10vw) * 8); /* width of items * number of items */

        padding: 0 2.5vw;
        height: 100vh;
        display: flex;
        align-items: center;

        cursor: move;
    }

    .plane-wrapper {
        position: relative;

        width: calc(100vw / 1.75);
        height: 70vh;
        margin: auto 5vw;
        text-align: center;
    }

    /* disable pointer events and text selection during drag */
    #planes.dragged .plane-wrapper {
        pointer-events: none;

        -webkit-touch-callout: none;
        -webkit-user-select: none;
        -khtml-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
    }

    .plane-title {
        position: absolute;
        top: 50%;
        left: 50%;
        z-index: 1;
        transform: translate3D(-50%, -50%, 0);
        font-size: 4vw;
        font-weight: 700;
        line-height: 1.2;
        text-transform: uppercase;
        color: black;
        text-stroke: 1px white;
        -webkit-text-stroke: 1px white;

        opacity: 0;

        transition: color 0.5s, opacity 0.5s;
    }

    #planes.dragged .plane-title {
        color: transparent;
    }

    .plane-wrapper.loaded .plane-title {
        opacity: 1;
    }

    .plane {
       
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
    }

    .plane img {
        /* hide original images if there's no WebGL error */
        display: none;
        /* prevent original image from dragging */
        pointer-events: none;
        -webkit-user-drag: none;
        -khtml-user-drag: none;
        -moz-user-drag: none;
        -o-user-drag: none;
        user-drag: none;
    }

    #drag-tip {
       
        right: 20px;
        bottom: 20px;
        left: 20px;
        pointer-events: none;
        font-size: 0.9em;
        text-transform: uppercase;
        color: #888;
        text-align: center;
    }


    /*** handling WebGL errors ***/

    .no-curtains #planes {
        transition: background-color 0.5s;
    }

    .no-curtains #planes.dragged {
        background-color: #0d0d0d;
    }

    .no-curtains .plane-title {
        opacity: 1;
    }

    .no-curtains .plane {
        display: flex;
        overflow: hidden;
        transition: filter 0.5s;
    }

    .no-curtains #planes.dragged .plane {
        filter: grayscale(1);
    }

    .no-curtains .plane img {
        display: block;
        min-width: 100%;
        min-height: 100%;
        object-fit: cover;
    }

}




@media screen and (orientation: portrait) {

    #content {
        max-height: 100vh;
    }

    #planes {
        overflow: hidden;
        width: 100vw;

        padding: 2.5vh 0;
        height: auto;
        flex-direction: column;
    }

    .plane-wrapper {
        position: relative;

        width: 70vw;
        height: calc(100vh / 1.75);
        margin: 5vw 0;
    }

    .plane-title {
        font-size: 10vw;
    }

}