:root {
    --fontFamily: sans-serif;
    --fontSize: clamp(16px, 2vw, 17px);
    --fontSizeSmall: .8em;
    --fontSizeSmall2: .9rem;
    --fontSizeBig: 1.2em;
    --fontWeight: normal;
    --bgC: silver;
    --bgFaintC: #c0c0c0f2;
    --rangeThumbC: gainsboro;
    --infoButtonC: #dcdcdc8f;
    --mainC: #252525;
    --mainFaintC: #555555;
    --accentC: gainsboro;
    --flashC: #4affba;
    --initPopC: #2525250e;
    --graphLineC: #6969693d;
    --bornTextC: white;
    --lineHeight: 1.6;
    --lineHeightBig: 2.1;
    --padding: 8px;
    --paddingSmall: 6px;
    --paddingBig: 12px;
    --gap: 20px;
    --borderRadius: 100%;
    --borderRadius2: 15px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scrollbar-width: none;
}

::-webkit-scrollbar {
    display: none;
}

a,
a:active,
a:visited {
    color: var(--mainC);
    text-decoration: none;
}

body {
    font-family: var(--fontFamily);
    font-size: var(--fontSize);
    font-weight: var(--fontWeight);
    color: var(--mainC);
    background: var(--bgC);
    line-height: var(--lineHeight);
}

nav {
    position: relative;
    padding: var(--padding);
    padding-bottom: 0;
    display: flex;
    align-items: start;
    user-select: none;
    z-index: 999;
    transition: all 200ms ease;
}

nav>* {
    flex: auto;
}

nav .notes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    padding: var(--paddingBig);
    background: var(--bgC);
    max-width: 1300px;
    flex-direction: column;
    justify-content: end;
    z-index: 999;
    display: none;
    line-height: 1.45;
}
nav .notes li {
    margin-left: calc(var(--gap) + 3px);
}
nav .notes .close-button {
    position: fixed;
    top: var(--padding);
    right: var(--paddingBig);
    padding: var(--padding) var(--paddingBig);
    background: var(--infoButtonC);
    border-radius: var(--borderRadius);
    border-bottom: 1px solid var(--mainC);
    cursor: pointer;
}

input[type='range'] {
    -webkit-appearance: none;
    appearance: none;
    outline: none;
    height: 1px;
    width: 130px;
    cursor: pointer;
    background-color: var(--mainFaintC);
}

input[type='range']::-moz-range-track {
    background-color: var(--mainFaintC);
    height: 1px;
}

input[type='range']::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    height: 12px;
    width: 12px;
    background-color: var(--mainC);
    border-radius: 100%;
    box-shadow: 0 0 5px 5px var(--rangeThumbC);
}

input[type='range']::-moz-range-thumb {
    -webkit-appearance: none;
    appearance: none;
    height: 12px;
    width: 12px;
    background-color: var(--mainC);
    border: none;
    border-radius: 100%;
    box-shadow: 0 0 5px 5px var(--rangeThumbC);
}

#params {
    display: none;
    flex-direction: column;
    align-items: right;
    justify-content: center;
    line-height: var(--lineHeightBig);
    padding: var(--padding);
    transition: all 200ms ease;
}

#params .col div {
    display: flex;
    align-items: center;
    justify-content: end;
}

#params .col div label {
    text-align: right;
}

#params .col div input {
    margin: 0 var(--paddingBig);
}

#params .col div .value {
    width: 35px;
}

#params .col div .info-button {
    background: var(--infoButtonC);
    color: var(--mainC);
    display: block;
    width: 18px;
    height: 18px;
    font-size: var(--fontSizeSmall);
    border-radius: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 4px;
    cursor: help;
    position: relative;
}

#params .col div .info-button span {
    display: none;
    color: var(--mainC);
    background: var(--accentC);
    font-size: var(--fontSizeSmall2);
    letter-spacing: .01em;
    line-height: 1.3;
    padding: var(--paddingBig) var(--gap);
    border-radius: var(--borderRadius2);
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 280px;
    transform: translate(-50%,calc(100% + 5px));
    z-index: 90;
    box-shadow: 0 0 5px 5px var(--accentC);
    hyphens: auto;
}

#params .col div .info-button:hover {
    background: var(--accentC);
}

#params .col div .info-button:hover span {
    display: block;
}

#sim canvas {
    position: absolute;
    top: 0;
    z-index: -1;
}
#restart-button {
    margin: 0 var(--padding);
    position: relative;
    transition: all 200ms ease;
}

#restart-button2 {
    display: none;
}

#stats {
    font-size: var(--fontSizeSmall);
    line-height: 1;
    transition: all 200ms ease;
}

#stats .currentPop .initPop {
    background: var(--initPopC);
    z-index: -1;
}

#stats .currentPop .initPop::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 50%;
    border-bottom: 1px solid var(--graphLineC);
}

#stats .currentPop .label {
    transform: rotate(-90deg) translateX(-50%);
    transform-origin: top left;
    z-index: -1;
}

#stats .born .bg {
    color: var(--bornTextC);
    border-bottom: 1px solid var(--graphLineC);
    z-index: -1;
}

#stats .born .label {
    transform: rotate(-90deg) translateX(var(--paddingSmall));
    transform-origin: top left;
    z-index: -1;
}

#stats .eaten .label {
    transform: rotate(-90deg) translateX(calc(-100% - var(--paddingSmall)));
    transform-origin: top left;
    z-index: -1;
}

.button {
    text-align: center;
    cursor: pointer;
    padding: var(--paddingSmall) 0;
    border-bottom: 1px solid var(--mainFaintC);
    transition: all 200ms ease;
}

.hidden {
    opacity: 0;
    pointer-events: none;
    transition: all 200ms ease;
}

.flash {
    border-radius: var(--borderRadius);
    background: var(--flashC) !important;
    transition: all 200ms ease;
}

@keyframes breathe {
   0% {width: 100px; height: 100px;}
   50% {width: 200px; height: 200px;}
   100% {width: 100px; height: 100px;}
}
#loading {
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    transition: all 200ms ease;
}
#loading::before{
    content: '';
    position: absolute;
    background: var(--flashC);
    opacity: .6;
    border-radius: var(--borderRadius);
    box-shadow: 0 0 20px 20px var(--flashC);
    animation: breathe 2s ease infinite;
    z-index:-1;
}

.pop {
    border-radius: var(--borderRadius);
    background: var(--infoButtonC);
    transition: all 200ms ease;
}

.opaque-bg {
    background: var(--bgFaintC);
}

@media (hover:hover) {
    .button:hover {
        background: var(--infoButtonC);
        border-radius: var(--borderRadius);
        transition: all 200ms ease;
    }
}

@media screen and (min-width:550px) {
    input[type='range'] {
        width: 150px;
    }

    nav .notes {
        justify-content: center;
    }

    #params {
        align-items: center;
    }

    #params .col div label {
        width: 145px;
    }
}

@media screen and (min-width:1300px) {
    nav {
        width: 200px;
        flex-wrap: wrap;
        position: absolute;
        gap: 0;
        top: 0;
    }
    nav #info:hover .notes {
        display: flex !important;
    }
    nav .notes {
        position: absolute;
        left:auto;
        height:fit-content;
        right: 0;
        top: var(--padding);
        transform: translateX(100%);
        border-radius: var(--borderRadius2);
        background: var(--accentC);
        box-shadow: 0 0 5px 5px var(--accentC);
        padding: var(--paddingBig) calc(var(--gap)*1.2);
        width: 540px;
    }
    nav .notes .close-button {
        display: none;
    }
    nav .notes li {
        margin-left: var(--gap);
    }

    input[type='range'] {
        width: 150px;
    }

    input[type='range']::-webkit-slider-thumb {
        height: 10px;
        width: 10px;
    }

    input[type='range']::-moz-range-thumb {
        height: 10px;
        width: 10px;
    }

    #params {
        display: flex;
        flex-direction: row;
        justify-content: end;
        align-items: start;
        gap: var(--paddingBig);
        padding-bottom: none;
        line-height: var(--lineHeight);
        transition: all 200ms ease;
    }

    #params .col {
        display: flex;
        flex-direction: column;
        align-items: end;
    }

    #params .col div label {
        width: auto;
    }

    #params .col div .value {
        width: 30px;
    }

    #params .col div .info-button {
        width: 20px;
        height: 20px;
    }

    #params .col div .info-button span {
        letter-spacing: 0em;
    }

    #restart-button {
        display: none;
    }

    #restart-button2 {
        display: block;
    }

    #see-params {
        display: none;
    }

    .button {
        padding: 0;
    }
}