:root {

    font-size: 62.5%;
    touch-action: pan-x pan-y;
    height: 100%;
    
    /** Base colors */
    --clr-dark-a0: #000000;
    --clr-light-a0: #ffffff;

    /** Theme primary colors */
    --clr-primary-a0: #ff8200;
    --clr-primary-a10: #ff9030;
    --clr-primary-a20: #ff9f4c;
    --clr-primary-a30: #ffac66;
    --clr-primary-a40: #ffba7f;
    --clr-primary-a50: #ffc898;

    /** Theme surface colors */
    --clr-surface-a0: #121212;
    --clr-surface-a10: #282828;
    --clr-surface-a20: #3f3f3f;
    --clr-surface-a30: #575757;
    --clr-surface-a40: #717171;
    --clr-surface-a50: #8b8b8b;

    /** Theme tonal surface colors */
    --clr-surface-tonal-a0: #271d15;
    --clr-surface-tonal-a10: #3c322a;
    --clr-surface-tonal-a20: #514841;
    --clr-surface-tonal-a30: #686059;
    --clr-surface-tonal-a40: #807872;
    --clr-surface-tonal-a50: #98918d;

    /** Success colors */
    --clr-success-a0: #22946e;
    --clr-success-a10: #47d5a6;
    --clr-success-a20: #9ae8ce;

    /** Warning colors */
    --clr-warning-a0: #a87a2a;
    --clr-warning-a10: #d7ac61;
    --clr-warning-a20: #ecd7b2;

    /** Danger colors */
    --clr-danger-a0: #9c2121;
    --clr-danger-a10: #d94a4a;
    --clr-danger-a20: #eb9e9e;

    /** Info colors */
    --clr-info-a0: #21498a;
    --clr-info-a10: #4077d1;
    --clr-info-a20: #92b2e5;
}

* {
    background-color: var(--clr-surface-a0);
    color: var(--clr-primary-a0);
    font-size: 1.8rem;
    font-family: Verdana, sans-serif;
}

html, body {

    overscroll-behavior: contain;
}

body {
  
    overscroll-behavior-y: contain;
    padding: unset;
    margin: unset;
}

.warning {

    background-color: var(--clr-danger-a10);
    color: var(--clr-light-a0);
}

@scope ( #controller ) {

    :scope {

        display: grid;
        grid-template-columns: 2fr 1fr 2fr 1fr;
        grid-template-rows: repeat( 20, 1fr );
        width: 100vw;
        height: 100dvh;
        box-sizing: border-box;
    }

    button {

        grid-column: span 2;
        grid-row: span 2;
        padding: auto;
        font-size: 3rem;
        background-color: var(--clr-surface-a10);
        color: var(--clr-primary-a0);
        border-color: var(--clr-surface-tonal-a10);
        border-style: solid;
    }

    svg {

        fill: var(--clr-primary-a0);
        width: 3rem;
        aspect-ratio: 1 / 1;
        background-color: inherit;
    }

    #trackpad {

        background-color: var(--clr-surface-a20);
        grid-column: span 3;
        grid-row: span 15;
    }

    #volume {

        background-color: var(--clr-surface-a30);
        grid-column: span 1;
        grid-row: span 14;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        align-items: center;
    }

    #volume span {

        font-family: 'Material Symbols Outlined';
        font-size: 3rem;
        background-color: transparent;
        padding-top: 2rem;
        padding-bottom: 2rem;
    }

    #mute {

        grid-column: span 1;
        grid-row: span 2;
    }

    footer {

        grid-column: span 3;
        grid-row: span 1;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    input#text {

        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50% );
        z-index: -2;
    }

    input#text:focus {

        z-index: 1;
        font-size: 3rem;
        width: 90%;
        background-color: unset;
        color: var(--clr-primary-a0);
        border-style: unset;
        border-bottom-style: solid;
        border-bottom-color: var(--clr-primary-a20);
        outline: unset;
        text-align: center;
    }

    :scope:has(input#text:focus):before, *[popover]::backdrop {

        content: '';
        position: fixed;
        inset: 0;
        background-color: rgba( 0, 0, 0, .5 );
        backdrop-filter: blur(5px);
    }

    @scope ( *[popover] ) {

        :scope:popover-open {

            width: 100%;
            display: grid;
            grid-template-columns: 1fr 1fr;
            box-sizing: border-box;
        }

        button {

            padding: 3rem;
            grid-column: span 1;
        }
        input {

            grid-column: span 1;
            grid-row: 1 / 3;
            font-size: 1.8rem;
            padding: 1rem;
            border: unset;
        }
    }

    @scope ( #devices ) {

        .close {

            grid-column: 2/3;
            padding: 1rem;
        }

        #device-list {

            grid-column: span 2;
        }
    }

    @scope ( #how-to ) {

        p, hr {

            grid-column: span 2;
            font-size: 1.8rem;
            width: 90%;
            margin-left: auto;
            margin-right: auto;
        }

        .close {

            grid-column: 2/3;
            padding: 1rem;
        }
    }
}