:root {
    --ob: #0B1018;
    --gm: #22262D;
    --gr: #2E343D;
    --ti: #8C939E;
    --pl: #C9CED6;
    --ice: #A8D4EA;
    --ice2: #6FA8CC;
    --wh: #F5F7FA;
    --ok: #6FE3B0;
    --warn: #F2B35E;
    --bad: #FF6B6B;
    --ease: cubic-bezier(.2, .7, .2, 1);
    --u: clamp(11px, .72vw + 6px, 17px)
}

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

html,
body {
    height: 100%;
    overflow: hidden;
    background: var(--ob);
    color: var(--wh);
    font: 300 var(--u)/1.5 Inter, system-ui, sans-serif;
    user-select: none;
    -webkit-user-select: none
}

canvas#gl {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    cursor: grab
}

canvas#gl.drag {
    cursor: grabbing
}

.vig {
    position: fixed;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(ellipse at center, transparent 55%, rgba(11, 16, 24, .55) 100%)
}

.glass {
    background: rgba(22, 26, 33, .55);
    border: 1px solid rgba(201, 206, 214, .14);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    box-shadow: 0 12px 40px rgba(0, 0, 0, .35), inset 0 1px 0 rgba(255, 255, 255, .06)
}

.lbl {
    font: 500 .62em Inter;
    letter-spacing: .3em;
    text-transform: uppercase;
    color: var(--ti)
}

.num {
    font: 600 2.1em Sora;
    letter-spacing: -.02em;
    font-variant-numeric: tabular-nums;
    line-height: 1.05
}

.unit {
    font: 400 .6em Inter;
    letter-spacing: .18em;
    color: var(--ti);
    margin-left: .4em
}

/* top bar */
.top {
    position: fixed;
    top: max(14px, env(safe-area-inset-top));
    left: 50%;
    translate: -50% 0;
    width: min(1180px, calc(100% - 28px));
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 10px 8px 16px;
    border-radius: 99px;
    z-index: 20
}

.home {
    display: flex;
    align-items: center;
    gap: 11px;
    font: 600 .8em Sora;
    letter-spacing: .34em;
    color: var(--pl);
    text-decoration: none;
    white-space: nowrap
}

.home img {
    width: 1.9em;
    height: 1.9em
}

.home small {
    font: 400 .8em Inter;
    letter-spacing: .3em;
    color: var(--ice);
    padding-left: 11px;
    border-left: 1px solid rgba(201, 206, 214, .2)
}

.chips {
    display: flex;
    gap: 8px;
    align-items: center
}

.chip {
    font: 500 .62em Inter;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--pl);
    padding: .8em 1.3em;
    border-radius: 99px;
    border: 1px solid rgba(201, 206, 214, .14);
    background: rgba(11, 16, 24, .4);
    cursor: pointer;
    transition: .25s var(--ease);
    white-space: nowrap
}

.chip:hover {
    border-color: rgba(168, 212, 234, .5);
    color: #fff
}

.chip.on {
    background: linear-gradient(135deg, #fff, var(--ice));
    color: var(--ob);
    border-color: transparent
}

.chip b {
    font-weight: 600;
    color: var(--ice)
}

.chip.on b {
    color: var(--ob)
}

/* toasts + warnings */
#toasts {
    position: fixed;
    top: calc(max(14px, env(safe-area-inset-top)) + 4.6em);
    left: 50%;
    translate: -50% 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 15;
    pointer-events: none
}

.toast {
    font: 500 .8em Sora;
    letter-spacing: .16em;
    text-transform: uppercase;
    padding: .85em 1.6em;
    border-radius: 99px;
    animation: tin .5s var(--ease) both;
    transition: opacity .6s, transform .6s
}

.toast.out {
    opacity: 0;
    transform: translateY(-10px)
}

.toast.ok {
    color: var(--ok)
}

.toast.warn {
    color: var(--warn)
}

.toast.bad {
    color: var(--bad)
}

@keyframes tin {
    from {
        opacity: 0;
        transform: translateY(-14px) scale(.96)
    }
}

#alert {
    position: fixed;
    top: 30%;
    left: 50%;
    translate: -50% 0;
    font: 700 2.4em Sora;
    letter-spacing: .28em;
    color: var(--bad);
    text-shadow: 0 0 40px rgba(255, 80, 80, .7);
    z-index: 14;
    pointer-events: none;
    opacity: 0;
    text-align: center
}

#alert.on {
    opacity: 1;
    animation: bl .5s steps(2) infinite
}

@keyframes bl {
    50% {
        opacity: .25
    }
}

/* instruments */
.hud {
    position: fixed;
    left: 50%;
    bottom: max(16px, env(safe-area-inset-bottom));
    translate: -50% 0;
    display: flex;
    align-items: stretch;
    gap: clamp(8px, 1vw, 18px);
    z-index: 10;
    pointer-events: none
}

.panel {
    border-radius: 22px;
    padding: 1.1em 1.5em;
    min-width: 12.5em;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: .5em
}

.panel .row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1em
}

.panel .sub {
    font: 400 .78em Inter;
    color: var(--pl);
    font-variant-numeric: tabular-nums
}

.adiw {
    border-radius: 50%;
    padding: .55em;
    display: grid;
    place-items: center
}

#adi {
    width: clamp(150px, 13vw, 240px);
    height: clamp(150px, 13vw, 240px);
    display: block
}

.bar {
    height: 5px;
    border-radius: 3px;
    background: var(--gm);
    overflow: hidden;
    margin-top: .25em
}

.bar i {
    display: block;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--ice2), #fff);
    box-shadow: 0 0 10px var(--ice);
    border-radius: 3px
}

.sys {
    display: flex;
    gap: 6px;
    flex-wrap: wrap
}

.sys span {
    font: 600 .62em Sora;
    letter-spacing: .14em;
    padding: .35em .8em;
    border-radius: 99px;
    background: var(--gm);
    color: var(--ti);
    transition: .3s
}

.sys span.on {
    background: rgba(111, 227, 176, .16);
    color: var(--ok)
}

.sys span.am {
    background: rgba(242, 179, 94, .16);
    color: var(--warn)
}

.sys span.rd {
    background: rgba(255, 107, 107, .18);
    color: var(--bad)
}

/* help */
#keys {
    position: fixed;
    right: max(14px, env(safe-area-inset-right));
    top: calc(max(14px, env(safe-area-inset-top)) + 4.4em);
    width: 19.5em;
    border-radius: 20px;
    padding: 1.2em 1.4em;
    z-index: 9;
    transition: .4s var(--ease);
    font-size: .82em
}

#keys.hide {
    opacity: 0;
    translate: 20px 0;
    pointer-events: none
}

#keys h4 {
    font: 600 .8em Sora;
    letter-spacing: .3em;
    color: var(--ice);
    text-transform: uppercase;
    margin-bottom: .7em
}

#keys div {
    display: flex;
    justify-content: space-between;
    gap: 1em;
    padding: .28em 0;
    color: var(--pl);
    border-bottom: 1px solid rgba(201, 206, 214, .06)
}

#keys kbd {
    font: 500 .85em Inter;
    color: #fff;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(201, 206, 214, .18);
    border-radius: 6px;
    padding: .05em .55em;
    white-space: nowrap
}

/* screens */
.screen {
    position: fixed;
    inset: 0;
    z-index: 40;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at center, rgba(11, 16, 24, .5), rgba(11, 16, 24, .93));
    backdrop-filter: blur(7px);
    -webkit-backdrop-filter: blur(7px);
    transition: opacity .6s var(--ease), visibility .6s;
    overflow: auto;
    padding: 24px
}

.screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none
}

.card {
    width: min(1040px, 100%);
    text-align: center
}

.card .emb {
    width: clamp(52px, 5vw, 84px);
    margin: 0 auto .8em;
    filter: drop-shadow(0 0 30px rgba(168, 212, 234, .35))
}

.eyebrow {
    font: 500 .7em Inter;
    letter-spacing: .5em;
    text-transform: uppercase;
    color: var(--ice)
}

h1 {
    font: 300 clamp(2rem, 4.2vw, 4rem)/1.05 Sora;
    letter-spacing: .04em;
    margin: .3em 0 .25em
}

h1 b {
    font-weight: 600;
    background: linear-gradient(120deg, #fff, var(--ice) 60%, var(--ice2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent
}

.lead {
    max-width: 44em;
    margin: 0 auto 1.6em;
    color: var(--ti);
    font-size: 1em
}

.opts {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(8px, 1.2vw, 16px);
    margin-bottom: 1.1em
}

.opt {
    border-radius: 20px;
    padding: 1.4em 1.3em;
    text-align: left;
    cursor: pointer;
    transition: .35s var(--ease);
    position: relative;
    overflow: hidden
}

.opt:hover {
    transform: translateY(-3px);
    border-color: rgba(168, 212, 234, .4)
}

.opt.sel {
    border-color: var(--ice);
    box-shadow: 0 0 0 1px var(--ice), 0 18px 50px -14px rgba(168, 212, 234, .45)
}

.opt .n {
    font: 600 .66em Sora;
    letter-spacing: .3em;
    color: var(--ice)
}

.opt h3 {
    font: 600 1.2em Sora;
    margin: .35em 0 .3em;
    letter-spacing: .02em
}

.opt p {
    font-size: .86em;
    color: var(--ti);
    line-height: 1.55
}

.row2 {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
    margin-top: .4em
}

.btn {
    appearance: none;
    border: 0;
    cursor: pointer;
    font: 600 .74em Sora;
    letter-spacing: .26em;
    text-transform: uppercase;
    padding: 1.25em 2.6em;
    border-radius: 99px;
    color: var(--ob);
    background: linear-gradient(135deg, #fff, var(--ice));
    box-shadow: 0 14px 40px -12px var(--ice);
    transition: .3s var(--ease)
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 46px -8px var(--ice)
}

.btn.ghost {
    background: rgba(11, 16, 24, .5);
    color: var(--pl);
    border: 1px solid rgba(201, 206, 214, .22);
    box-shadow: none
}

.btn.ghost:hover {
    border-color: var(--ice);
    color: #fff
}

.seg {
    display: inline-flex;
    border-radius: 99px;
    padding: 4px
}

.seg button {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--ti);
    font: 500 .66em Inter;
    letter-spacing: .22em;
    text-transform: uppercase;
    padding: .95em 1.6em;
    border-radius: 99px;
    cursor: pointer;
    transition: .3s
}

.seg button.on {
    background: rgba(168, 212, 234, .18);
    color: #fff
}

.hint {
    margin-top: 1.4em;
    font-size: .78em;
    color: var(--ti);
    letter-spacing: .04em
}

.hint kbd {
    font: 500 .9em Inter;
    color: #fff;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(201, 206, 214, .18);
    border-radius: 6px;
    padding: .05em .5em
}

.res {
    width: min(560px, 100%);
    border-radius: 28px;
    padding: 2.2em 2.4em;
    text-align: center
}

.grade {
    font: 700 3.4em Sora;
    letter-spacing: -.02em;
    margin: .1em 0
}

.grade.good {
    color: var(--ok)
}

.grade.mid {
    color: var(--warn)
}

.grade.bad {
    color: var(--bad)
}

.score {
    font: 600 1em Sora;
    letter-spacing: .2em;
    color: var(--ice)
}

.stats {
    margin: 1.4em 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .6em 1.6em;
    text-align: left
}

.stats div {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid rgba(201, 206, 214, .08);
    padding-bottom: .4em;
    font-size: .86em;
    color: var(--pl)
}

.stats b {
    font-weight: 500;
    color: #fff
}

#boot {
    position: fixed;
    inset: 0;
    z-index: 99;
    background: var(--ob);
    display: grid;
    place-items: center;
    transition: opacity .9s var(--ease), visibility .9s
}

#boot.done {
    opacity: 0;
    visibility: hidden
}

#boot .ring {
    width: 84px;
    height: 84px;
    border-radius: 50%;
    border: 1px solid rgba(201, 206, 214, .15);
    border-top-color: var(--ice);
    animation: sp 1.1s linear infinite
}

@keyframes sp {
    to {
        transform: rotate(360deg)
    }
}

#nogl {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 100;
    background: var(--ob);
    place-items: center;
    text-align: center;
    padding: 30px;
    color: var(--pl)
}

@media (min-width:1700px) {
    :root {
        --u: clamp(15px, .62vw + 6px, 22px)
    }
}

@media (max-width:1100px) {
    .opts {
        grid-template-columns: 1fr
    }

    .home small {
        display: none
    }

    #keys {
        display: none
    }

    .panel {
        min-width: 9em;
        padding: .8em 1em
    }

    .num {
        font-size: 1.6em
    }

    .chip.hm {
        display: none
    }
}

@media (max-height:720px) {
    .hud .panel.sys2 {
        display: none
    }

    h1 {
        font-size: 2.2rem
    }

    .lead {
        margin-bottom: 1em
    }
}

@media (max-width:760px) {
    .hud {
        flex-direction: column;
        align-items: center;
        bottom: 8px
    }

    .panel.pa,
    .panel.pb {
        display: none
    }
}