:root {
    /* canvas for texture width percentage */
    --canvasimgw: 0.42;
    /* canvas width and height */
    --canvasw: 900px;
    --canvash: 600px;
    /* canvas margin in handleWindowResize */
    --mleft: 20px;
    /* time line width percentage */
    --tline: 95%;
    /* minumum font size */
    --fsize: 15px;
    /* tooltip font size: tipsize * 1rem */
    --tipsize: 0.57;
}

*,
*::before,
*::after {
    /* include the borders and padding as part of the CSS width property */
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body,
html {
    background-color: antiquewhite;
    overflow-x: hidden;
    /* https://matthewjamestaylor.com/responsive-font-size */
    font-size: calc(var(--fsize) + 0.390625vw);
    /* prevents iOS from changing text sizes */
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}
.container {
    width: var(--canvasw);
    margin: 0 auto;
}
img {
    max-width: 100%;
    height: auto;
}
#theCanvas {
    width: var(--canvasw);
    height: var(--canvash);
    margin: 0;
    cursor: crosshair;
}
.flex-container {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2em;
}
/* https://dev.to/drews256/ridiculously-easy-row-and-column-layouts-with-flexbox-1k01 */
.row {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    width: 100%;
}
.column {
    display: flex;
    flex-direction: column;
    flex-basis: 100%;
    flex: 1;
}
.interface {
    width: var(--canvasw);
    margin: 0;
}
.btns {
    width: 45%;
    margin-bottom: 2em;
}
.lbtns {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}
label,
#locInfo {
    font-size: 1.5rem;
    line-height: 2em;
}
#models {
    font-size: 2rem;
    width: 100%;
}
.legenda {
    width: fit-content;
    font-size: 1.5rem;
    text-align: center;
}
.imgcontainer {
    position: relative;
    width: fit-content;
    touch-action: manipulation;
    cursor: crosshair;
    margin: 0 auto;
}
#canvasimg {
    position: absolute;
    width: calc(var(--canvasw) * var(--canvasimgw));
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 1;
}
#models,
#country,
#screenshot,
button {
    border: 0;
    outline: 0;
    border-radius: 8px;
    background-color: lightsteelblue;
    color: black;
    height: 2em;
    padding: 0 1em;
    margin: 0.15em 0.25em 0.15em 0;
    touch-action: manipulation;
    white-space: nowrap;
}
#country,
#screenshot {
    font-size: 1.8rem;
    padding: 0 1em;
}
.btlevel {
    font-size: 2rem;
}
#radio > label {
    margin-right: 1em;
}
label {
    margin-right: 2em;
}
/* represents the first element, counting from the end */
label:nth-last-child(1) {
    margin-right: 0;
}
.lbllatlon {
    margin-left: 4em;
}
#lat,
#lon,
#search {
    text-align: center;
    margin: 0 2em 2em 0;
}
.lblsearch {
    margin-left: 4em;
}
input[type="text"] {
    height: 2em;
    font-size: 1.2rem;
    min-width: 9em;
}
.dms {
    justify-content: space-between;
}
.initial {
    flex: initial;
}
.auto {
    flex: auto;
}
.none {
    flex: none;
}
.column-left,
.column-right {
    flex: 1; /* Makes both columns take up equal width */
}
.checkbox {
    font-size: 1.5rem;
    margin-right: 0;
    padding: 0;
}
#tooltip,
#canvastip {
    position: absolute;
    z-index: 2;
    background-color: rgba(300 300 300 / 0.5);
    color: black;
    padding: 3px;
    font-size: calc(var(--tipsize) * 1rem);
    display: none;
    pointer-events: none;
}
#cls,
#anim,
#print {
    font-size: 1.8rem;
    padding: 0 1em;
    width: 100%;
    text-overflow: clip;
    overflow: hidden;
}
datalist {
    display: flex;
    justify-content: space-between;
    margin: 0.5em 0;
    color: red;
    width: var(--tline);
}
#options {
    font-size: 1rem;
    padding: 0;
}
#object {
    margin-right: 0;
    width: 100%;
    font-size: 1.2rem;
    white-space: nowrap;
}
#size {
    margin-bottom: 3px;
}
figure {
    margin: 0;
}
#lblTimeline {
    margin-left: 5em;
    font-size: 1.5rem;
    font-style: italic;
}
#lbltexture {
    margin-right: 1em;
}
#textimg {
    width: calc(var(--canvasw) * var(--canvasimgw));
}
#sites,
#doc {
    margin-top: 2em;
    padding: 0;
    font-size: 1.5rem;
    font-style: italic;
    color: darkblue;
    width: fit-content;
    text-align: center;
}
.custom-select,
select {
    font-size: 1rem;
    height: 2rem;
    width: 50%;
    background-color: wheat;
    color: black;
    border: solid 2px lightsteelblue;
    border-radius: 10%;
    text-align-last: center;
}
select,
::picker(select) {
    @supports (appearance: base-select) {
        &,
        &::picker(select) {
            appearance: base-select;
        }
    }
}
select option,
select optgroup {
    font-size: 1rem;
}
select option:checked {
    font-weight: bold;
    color: red;
}
selectedcontent,
::picker-icon {
    margin: auto auto;
}
::picker-icon {
    font-size: 0.7rem;
}
::picker(select) {
    background: inherit;
    border-color: transparent;
    border-radius: 0.2em;
}
option::checkmark {
    font-size: 0.3rem;
    content: "⬤";
    color: #222;
}
#city {
    width: fit-content;
    min-width: 16em;
    margin-bottom: 2em;
}
.lblcity {
    margin: 0 0 0 4em;
}
#timeline {
    width: var(--tline);
    accent-color: #ff5733;
}
summary {
    font-size: 2rem;
}
ul {
    list-style: none;
    padding-left: 2em;
}
.form {
    margin-top: 50px;
}
.sideBySide {
    float: left;
    margin-right: 3rem;
}
.sideBySide:nth-last-child(1) {
    margin-right: 0;
    padding-right: 0;
}
details {
    margin: 2em 0;
}
.clear_both {
    clear: both;
}
.float_right {
    float: right;
    width: calc(var(--canvasimgw) * 100%);
    text-align: center;
}

/*
 * On screens that are 320px (iPhone SE) wide or less,
 * make the columns stack on top of each other
 * instead of next to each other
 */
@media (max-width: 320px) and (orientation: portrait) {
    :root {
        --canvasimgw: 0.99;
    }
    .flex-container {
        flex-direction: column;
    }
    .dms {
        flex-direction: column;
    }
    #object {
        font-size: 2rem;
        width: 100%;
    }
}
/*
 * Your landscape mobile styles here
 */
@media (320px <= max-width <= 568px) and (orientation: landscape) {
    .flex-container {
        flex-direction: column;
    }
}
/*
 * Desktop very short.
 */
@media (height <= 320px) and (hover: hover) {
    .flex-container {
        flex-direction: column;
    }
    .lbtns {
        flex-direction: column;
    }
}
/*
 * Desktop very narrow.
 */
@media ((max-width: 500px) or (max-height: 500px)) and (hover: hover) {
    :root {
        --fsize: 6px;
    }
}
/*
 * Styles for devices where hover isn't supported
 * and touch is primary
 */
@media (hover: none) and (pointer: coarse) and (max-width: 568px) {
    :root {
        --fsize: 6px;
    }
}