@font-face{font-family:Nunito;src:url(../assets/fonts/nunito-cyrillic-ext-wght-normal.woff2) format("woff2");font-weight:200 1000;font-display:swap;unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F}
@font-face{font-family:Nunito;src:url(../assets/fonts/nunito-cyrillic-wght-normal.woff2) format("woff2");font-weight:200 1000;font-display:swap;unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:Nunito;src:url(../assets/fonts/nunito-latin-wght-normal.woff2) format("woff2");font-weight:200 1000;font-display:swap;unicode-range:U+0000-00FF,U+2000-206F,U+20AC}
@font-face{font-family:Golos;src:url(../assets/fonts/golos-text-cyrillic-ext-wght-normal.woff2) format("woff2");font-weight:400 900;font-display:swap;unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F}
@font-face{font-family:Golos;src:url(../assets/fonts/golos-text-cyrillic-wght-normal.woff2) format("woff2");font-weight:400 900;font-display:swap;unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:Golos;src:url(../assets/fonts/golos-text-latin-wght-normal.woff2) format("woff2");font-weight:400 900;font-display:swap;unicode-range:U+0000-00FF,U+2000-206F,U+20AC}

:root{
  --v950:#2C1C5F;--v900:#42307D;--v600:#7F56D9;--v300:#B79CF2;--v100:#EDE6FC;
  --green:#12A150;--green-d:#0B6E37;--orange:#F5820B;--sun:#FFB81F;--sun-d:#C97F00;
  --blue:#0A73B7;--red:#D1294B;--white:#fff;--ink:#21154A;
  --m:clamp(16px,2.2vw,32px);--gap:8px;--r:28px;
  --display:Nunito,"Golos",system-ui,sans-serif;--text:Golos,system-ui,sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--v950);color:var(--white);font:400 18px/1.5 var(--text);overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
h1,h2,p,ul,dl,dd{margin:0;padding:0}
ul{list-style:none}
h1,h2{font-family:var(--display);font-weight:900;letter-spacing:-.02em;line-height:1.02}
h2{font-size:clamp(32px,4.2vw,64px)}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
:focus-visible{outline:3px solid var(--sun);outline-offset:3px;border-radius:6px}

/* the one button: the app's raised pebble */
.btn{display:inline-flex;align-items:center;gap:10px;min-height:60px;padding:0 30px;border-radius:999px;background:var(--sun);color:var(--v950);font:700 19px/1 var(--text);text-decoration:none;box-shadow:0 6px 0 var(--sun-d);transition:transform .14s var(--ease),box-shadow .14s var(--ease)}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 0 var(--sun-d)}
.btn:active{transform:translateY(5px);box-shadow:0 1px 0 var(--sun-d)}
.btn-sm{min-height:44px;padding:0 20px;font-size:16px;box-shadow:0 4px 0 var(--sun-d)}
.btn-sm:hover{box-shadow:0 5px 0 var(--sun-d)}

/* bar */
.bar{position:fixed;inset:0 0 auto;z-index:20;display:flex;align-items:center;gap:clamp(12px,2vw,28px);padding:10px var(--m);background:var(--v950)}
.mark{display:flex;align-items:center;gap:10px;font:700 17px/1 var(--display);letter-spacing:-.02em;text-decoration:none;white-space:nowrap}
.mark img{width:40px;height:40px;border-radius:11px;object-fit:cover}
.links{display:flex;gap:clamp(14px,2vw,28px);margin-left:auto}
.links a{text-decoration:none;font-weight:500;font-size:16px;padding:8px 0;position:relative}
.links a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:3px;border-radius:3px;background:var(--sun);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.links a:hover::after{transform:scaleX(1)}
.langs{display:flex;background:var(--v900);border-radius:999px;padding:3px}
.langs button{min-width:44px;min-height:38px;padding:0 10px;border-radius:999px;font-size:15px;font-weight:600;transition:background .15s}
.langs button[aria-pressed=true]{background:var(--v100);color:var(--v950)}

/* hero */
.hero{position:relative;min-height:100svh;overflow:hidden;display:flex;align-items:flex-start;background:var(--v950)}
.hero-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 70%;animation:drift 28s ease-in-out infinite alternate}
.hero-scrim{position:absolute;inset:0 0 auto;height:62%;background:linear-gradient(180deg,rgba(44,28,95,.82),rgba(44,28,95,0))}
.hero-copy{position:relative;z-index:2;padding:clamp(100px,14vh,150px) var(--m) 0;max-width:min(1200px,92vw)}
.hero h1{font-size:clamp(46px,8.4vw,132px);line-height:.98}
.hero-copy p{font-size:clamp(19px,1.7vw,24px);max-width:30em;margin-top:22px;font-weight:500}
.stores{display:flex;flex-wrap:wrap;gap:14px 16px;margin-top:30px}
.hero-bird{position:absolute;z-index:3;right:clamp(0px,7vw,120px);bottom:clamp(40px,10vh,110px);width:clamp(240px,34vw,560px);animation:fly 5.5s ease-in-out infinite}
@keyframes drift{from{transform:scale(1.02)}to{transform:scale(1.09) translateX(-1%)}}
@keyframes fly{0%,100%{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-22px) rotate(2deg)}}

/* level test */
.test{background:var(--v100);color:var(--ink);display:grid;grid-template-columns:1fr minmax(320px,400px);gap:clamp(32px,6vw,96px);padding:clamp(72px,10vw,150px) clamp(var(--m),8vw,140px);align-items:center}
.test-copy>p{font-size:clamp(18px,1.5vw,22px);margin-top:20px;max-width:30em}
.test-bird{display:flex;align-items:center;gap:8px;margin-top:28px}
.test-bird img{width:clamp(170px,20vw,300px);flex:none;transition:transform .25s var(--ease)}
.test-bird img.pop{transform:scale(1.08) rotate(-3deg)}
.say{background:var(--v950);color:var(--white);padding:18px 22px;border-radius:var(--r);font-weight:500;max-width:18em}

.phone{background:var(--v950);border-radius:48px;padding:10px;width:100%;max-width:390px;margin-inline:auto}
.screen{position:relative;background:var(--white);color:var(--ink);border-radius:38px;overflow:hidden;aspect-ratio:375/760}
.status{display:flex;justify-content:space-between;padding:14px 26px 4px;font-size:15px}
.quiz{display:flex;flex-direction:column}
.q-top{display:flex;align-items:center;gap:12px;padding:10px 20px}
.q-x{font-size:26px;line-height:1}
.q-track{flex:1;height:12px;border-radius:9px;background:#E9EAEE;overflow:hidden}
.q-track i{display:block;height:100%;width:100%;background:var(--green);transform:scaleX(.04);transform-origin:left;transition:transform .4s var(--ease);border-radius:9px}
#qBody{flex:1;padding:10px 16px;display:flex;flex-direction:column;gap:10px;min-height:0}
.q-card{background:#F4F4F7;border-radius:20px;padding:16px}
.chip{display:inline-block;background:var(--v300);color:var(--v950);font-size:15px;font-weight:600;padding:3px 14px;border-radius:99px}
.q-text{font-size:19px;font-weight:700;line-height:1.3;margin-top:10px}
.q-opts{display:grid;gap:8px}
.q-opts button{min-height:50px;padding:6px 16px;border-radius:16px;background:#F4F4F7;font-weight:600;text-align:left;font-size:17px;transition:transform .12s var(--ease),background .15s,color .15s}
.q-opts button:hover:not(:disabled){background:var(--v100)}
.q-opts button:active:not(:disabled){transform:scale(.97)}
.q-opts .ok{background:var(--green);color:#fff}
.q-opts .no{background:var(--red);color:#fff}
.q-go{margin:8px 16px 22px;min-height:58px;border-radius:99px;background:var(--v600);color:#fff;font-weight:700;font-size:18px;box-shadow:0 5px 0 var(--v900);transition:transform .12s var(--ease),box-shadow .12s}
.q-go:active{transform:translateY(4px);box-shadow:0 1px 0 var(--v900)}
.q-go[hidden]{display:none}
.q-result{text-align:center;display:flex;flex-direction:column;align-items:center;gap:6px;padding-top:6px}
.q-result strong{font:800 74px/1 var(--display);color:var(--v600)}
.q-result p{font-size:17px}
.q-result small{font-size:14px;color:#5A5275}
.q-result a{text-decoration:none;margin-top:8px}

/* board */
.board{background:var(--v950);display:grid;grid-template-columns:repeat(4,1fr);grid-template-areas:"h h c c" "h h c c" "v k c c" "v k g s" "p p d d";grid-auto-rows:minmax(168px,auto);gap:var(--gap);padding:var(--gap)}
.tile{min-width:0;position:relative;border-radius:var(--r);overflow:hidden;padding:22px;display:flex;flex-direction:column;justify-content:flex-end;gap:12px;min-height:220px;transition:transform .25s var(--ease)}
.tile:hover{transform:translateY(-4px)}
.cap b{display:block;font-size:20px;font-weight:700}
.cap span{display:block;font-size:16px;line-height:1.35;margin-top:2px}
.t-head{grid-area:h;background:var(--sun);color:var(--v950);justify-content:space-between;padding:clamp(24px,3vw,44px)}
.t-head p{font-size:clamp(19px,1.6vw,23px);font-weight:500;max-width:24em}
.t-chat{grid-area:c;background:var(--v600)}
.t-voice{grid-area:v;background:var(--green-d)}
.t-card{grid-area:k;background:var(--blue)}
.t-goal{grid-area:g;background:var(--v900)}
.t-streak{grid-area:s;background:var(--orange);color:var(--v950)}
.t-path{grid-area:p;background:var(--v100);color:var(--ink)}
.t-drill{grid-area:d;background:var(--red)}
.chat{display:flex;flex-direction:column;gap:8px;flex:1;font-size:clamp(17px,1.5vw,21px);font-weight:500}
.chat p{padding:12px 18px;border-radius:20px;max-width:82%}
.chat .me{align-self:flex-end;background:var(--v950)}
.chat .ai{align-self:flex-start;background:var(--white);color:var(--ink)}
.chat .fix{align-self:flex-start;background:var(--sun);color:var(--v950)}
.chat s{opacity:.75}
.letters{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:auto}
.letters i{aspect-ratio:1;display:grid;place-items:center;border-radius:50%;background:var(--white);color:var(--green-d);font:800 clamp(26px,2.6vw,40px)/1 var(--display);font-style:normal}
.wave{height:44px;display:flex;align-items:center;gap:4px}
.wave b{flex:1;background:var(--white);border-radius:3px;height:100%;transform-origin:center;animation:wv 1.3s ease-in-out infinite alternate}
@keyframes wv{from{transform:scaleY(.25)}to{transform:scaleY(1)}}
.t-card{justify-content:space-between}
.deck{flex:1;position:relative;min-height:230px;perspective:1000px;margin-bottom:14px}
.fc{position:absolute;left:50%;top:50%;width:min(70%,200px);aspect-ratio:3/4;margin:0;transform-style:preserve-3d;
  transition:transform .6s var(--ease),opacity .6s var(--ease);will-change:transform}
.fc .face{position:absolute;inset:0;border-radius:20px;backface-visibility:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:12px;text-align:center}
.fc:not(:last-child) .front{filter:brightness(.82)}
.fc .front{background:var(--v600);color:#fff;box-shadow:0 7px 0 var(--v900)}
.fc .back{background:var(--white);color:var(--v950);transform:rotateY(180deg);box-shadow:0 7px 0 #C9B8F2}
.fc .word{font:900 clamp(24px,2.3vw,34px)/1.1 var(--display)}
.fc .sub{font-size:14px;font-weight:600;opacity:.85}
.fc .pic{font:900 15px/1 var(--text);background:rgba(255,255,255,.18);border-radius:99px;padding:5px 12px}
.goal{flex:1;display:flex;flex-direction:column;gap:14px;justify-content:center}
.goal output{font:800 clamp(34px,3.4vw,52px)/1 var(--display)}
.goal input{width:100%;height:32px;accent-color:var(--sun);cursor:grab}
.streak{flex:1;position:relative;display:flex;align-items:center;justify-content:space-between}
.days{width:clamp(96px,9vw,140px);aspect-ratio:1;border-radius:50%;background:var(--v950);color:var(--sun);display:grid;place-items:center;font:800 clamp(42px,4.4vw,68px)/1 var(--display)}
.xp{font:800 clamp(20px,1.8vw,28px)/1 var(--display)}
.chips{flex:1;display:flex;flex-wrap:wrap;gap:6px;align-content:flex-start}
.chips li{background:var(--v950);color:#fff;padding:7px 14px;border-radius:99px;font-weight:600;font-size:16px}
.drill{flex:1;display:grid;grid-template-columns:1fr 1fr;gap:6px;align-content:start}
.drill li{background:var(--white);color:var(--ink);border-radius:14px;padding:8px 14px;font-weight:600;font-size:16px}

/* worlds */
.worlds{background:var(--green-d);display:grid;grid-template-columns:1fr minmax(300px,380px);gap:clamp(32px,7vw,120px);padding:clamp(72px,9vw,140px) clamp(var(--m),8vw,140px);align-items:center;transition:background .9s ease}
.worlds[data-w="1"]{background:#0B5F9C}
.worlds[data-w="2"]{background:#A84F00}
.w-copy p{font-size:clamp(19px,1.7vw,24px);margin-top:20px;max-width:26em;min-height:3em}
.w-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.w-tabs button{min-height:48px;padding:0 20px;border-radius:99px;background:rgba(255,255,255,.16);font-weight:600;transition:background .2s,color .2s,transform .12s}
.w-tabs button:active{transform:scale(.96)}
.w-tabs button[aria-selected=true]{background:var(--white);color:var(--v950)}
.map{aspect-ratio:624/1336;background:var(--v950)}
.map>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 1.2s ease}
.map>img.on{opacity:1}
.map-card{position:absolute;left:4.8%;right:4.2%;top:8.4%;height:13.5%;background:#FDFDFD;border-radius:18px;padding:11px 16px;color:var(--ink)}
.map-card .chip{background:var(--v300);font-size:14px;padding:2px 12px}
.map-card div{display:flex;align-items:center;gap:10px;margin-top:6px}
.map-card i{width:40px;height:40px;border-radius:50%;background:#E9EAEE;display:grid;place-items:center;font-style:normal;font-weight:800;color:var(--v600)}
.map-card b{font-size:22px;color:var(--v600)}

/* four fields */
.how{display:grid;grid-template-columns:repeat(4,1fr)}
.field{min-height:78svh;padding:clamp(24px,2.4vw,36px);display:flex;flex-direction:column;position:relative}
.field h2{font-size:clamp(30px,3vw,46px)}
.f1{background:var(--sun);color:var(--v950)}
.f2{background:var(--orange);color:var(--v950)}
.f3{background:var(--v600)}
.f4{background:var(--v900)}
.field p{margin-top:auto;font:700 clamp(22px,2vw,30px)/1.2 var(--text)}
.mini{position:absolute;top:38%;left:50%;width:min(240px,78%);margin-left:calc(min(240px,78%) / -2);background:var(--white);color:var(--ink);border-radius:var(--r);padding:18px 18px 22px;transition:transform .25s var(--ease)}
.field:hover .mini{transform:translateY(-6px) rotate(-1.5deg)}
.mini strong{display:block;font:800 clamp(24px,2.3vw,34px)/1.1 var(--display);margin-top:12px}

/* facts */
.facts{background:var(--v100);color:var(--ink);padding:clamp(64px,8vw,120px) clamp(var(--m),8vw,140px);display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(32px,6vw,96px);align-items:center}
.who{font-size:clamp(21px,1.9vw,27px);line-height:1.28;font-weight:600}
.facts dl{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap)}
.facts dl div{aspect-ratio:1;border-radius:50%;background:var(--v950);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:10px}
.facts dl div:nth-child(2){background:var(--green-d)}
.facts dl div:nth-child(3){background:var(--orange);color:var(--v950)}
.facts dl div:nth-child(4){background:var(--v600)}
.facts dt{font:800 clamp(22px,2.6vw,38px)/1.05 var(--display)}
.facts dd{font-size:16px;margin-top:4px}

/* faq */
.faq{display:grid;grid-template-columns:4fr 8fr;gap:clamp(24px,4vw,64px);padding:clamp(72px,9vw,140px) var(--m)}
.faq h2{position:sticky;top:96px;align-self:start;font-size:clamp(32px,3.8vw,56px)}
.faq-list{display:grid;gap:var(--gap)}
details{background:var(--v900);border-radius:var(--r);transition:background .2s}
details[open]{background:var(--sun);color:var(--v950)}
summary{list-style:none;min-height:76px;padding:20px 64px 20px 26px;font-size:20px;font-weight:600;cursor:pointer;position:relative;display:flex;align-items:center}
summary::-webkit-details-marker{display:none}
summary::before,summary::after{content:"";position:absolute;right:26px;top:50%;width:18px;height:3px;margin-top:-1.5px;background:currentColor;border-radius:2px;transition:transform .2s var(--ease)}
summary::after{transform:rotate(90deg)}
details[open] summary::after{transform:rotate(0)}
details p{padding:0 26px 24px;max-width:52ch}

/* cta */
.cta{position:relative;min-height:92svh;overflow:hidden;display:flex;align-items:center;padding:clamp(72px,8vw,120px) clamp(var(--m),8vw,140px)}
.cta-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cta-copy{position:relative;z-index:2;max-width:640px}
.cta-copy>p{font-size:clamp(19px,1.6vw,23px);margin-top:18px;max-width:26em}
.qrs{display:flex;gap:16px;margin-top:30px}
.qrs a{background:var(--white);color:var(--v950);border-radius:var(--r);padding:12px;text-decoration:none;text-align:center;font-weight:700;transition:transform .2s var(--ease)}
.qrs a:hover{transform:translateY(-4px) rotate(-1deg)}
.qrs img{width:clamp(130px,13vw,168px)}
.qrs span{display:block;padding:6px 0 2px}
.cta-bird{position:absolute;z-index:2;right:clamp(0px,7vw,130px);bottom:0;width:clamp(240px,34vw,540px)}

/* footer */
.foot{background:var(--v950);padding:clamp(40px,5vw,72px) var(--m) 28px}
.stones{display:grid;grid-template-columns:repeat(6,1fr);gap:clamp(4px,.8vw,12px)}
.stones span{aspect-ratio:1;border-radius:50%;background:var(--v900);color:#fff;display:grid;place-items:center;font:800 clamp(30px,7.6vw,128px)/1 var(--display)}
.stones span:nth-child(2){background:var(--green-d)}
.stones span:nth-child(3){background:var(--blue)}
.stones span:nth-child(4){background:var(--red)}
.stones span:nth-child(5){background:var(--orange)}
.stones span:nth-child(6){background:var(--sun);color:var(--v950)}
.foot-row{display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:space-between;margin-top:32px;font-size:16px}
.foot-row nav{display:flex;gap:24px}

/* climb: the app's map path as scroll position */
.climb{position:fixed;z-index:15;right:10px;top:50%;margin-top:-140px;height:280px;width:40px;display:flex;flex-direction:column;justify-content:space-between;align-items:center}
.climb i{width:36px;height:36px;border-radius:50%;background:var(--v950);color:#fff;font:700 13px/36px var(--text);font-style:normal;text-align:center;transition:background .3s,color .3s,transform .3s var(--ease)}
.climb i.done{background:var(--sun);color:var(--v950);transform:scale(1.08)}
.climb-bird{position:absolute;left:-46px;top:0;width:40px;height:40px;border-radius:50%;background:var(--v100);object-fit:cover;transition:transform .35s var(--ease)}
@media (min-width:1181px){.board,.faq,.foot{margin-right:58px}.foot{margin-right:0;padding-right:calc(var(--m) + 58px)}}
@media (max-width:1180px){.climb{display:none}}

/* entrance */
.js .rise{opacity:0;transform:translateY(24px)}
.js .rise.in{opacity:1;transform:none;transition:opacity .6s var(--ease) var(--d,0ms),transform .6s var(--ease) var(--d,0ms)}

@media (max-width:980px){
  .links{display:none}
  .langs{margin-left:auto}
  .test,.worlds,.facts{grid-template-columns:1fr}
  .board{grid-template-columns:1fr 1fr;grid-template-areas:"h h" "c c" "v k" "g s" "p d";grid-auto-rows:auto}
  .tile{min-height:290px}
  .how{grid-template-columns:1fr 1fr}
  .field{min-height:64svh}
  .faq{grid-template-columns:1fr}
  .faq h2{position:static}
}
@media (max-width:700px){
  body{font-size:17px}
  .mark span{display:none}
  .btn-sm{display:none}
  .hero{min-height:100svh}
  .hero-art{object-position:50% 100%}
  .hero-copy{max-width:none;padding-top:92px}
  .hero h1{font-size:clamp(40px,12.6vw,64px)}
  .stores .btn{flex:1 1 150px;justify-content:center;padding:0 12px;font-size:17px}
  .hero-bird{right:-6px;bottom:18px;width:52vw}
  .test{padding-inline:12px}
  .test-copy{padding-inline:8px}
  .test-bird img{width:130px}
  .say{font-size:16px;padding:14px 16px}
  .board{grid-template-columns:1fr;grid-template-areas:"h" "c" "v" "k" "g" "s" "p" "d";gap:6px;padding:6px}
  .t-card{min-height:330px}
  .fc{width:170px}
  .how{grid-template-columns:1fr}
  .field{min-height:56svh}
  .mini{top:auto;bottom:112px}
  .field:first-child .mini{bottom:100px}
  .facts dl div{padding:6px}
  .cta{flex-direction:column;align-items:flex-start;padding-bottom:0;min-height:0}
  .cta-bird{position:relative;right:auto;align-self:flex-end;margin-top:12px;width:66vw}
  .qrs{width:100%}
  .qrs a{flex:1}
  .qrs img{width:100%}
  .foot-row nav{flex-wrap:wrap}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important}
  .js .rise{opacity:1;transform:none}
}

/* extra pieces */
.q-start{display:block;width:74%;margin:auto}
.field-bird{position:absolute;top:7%;left:50%;width:min(180px,62%);margin-left:calc(min(180px,62%) / -2);transition:transform .25s var(--ease)}
.field:hover .field-bird{transform:translateY(-4px) rotate(2deg)}
@media (max-width:700px){.field{min-height:66svh}.field-bird{top:24px;width:170px;margin-left:-85px}.f1 .mini,.field .mini{bottom:124px}.field{padding-bottom:28px}}