@font-face{font-family:Onest;src:url('assets/fonts/Onest-100900-cyrillic.woff2') format('woff2');font-weight:100 900;font-display:swap;unicode-range:U+0400-052F}
@font-face{font-family:Onest;src:url('assets/fonts/Onest-100900-latin.woff2') format('woff2');font-weight:100 900;font-display:swap}
@font-face{font-family:Unbounded;src:url('assets/fonts/Unbounded-200900-cyrillic.woff2') format('woff2');font-weight:200 900;font-display:swap;unicode-range:U+0400-052F}
@font-face{font-family:Unbounded;src:url('assets/fonts/Unbounded-200900-latin.woff2') format('woff2');font-weight:200 900;font-display:swap}
:root{--ink:#12141b;--yellow:#fee252;--red:#ff3420;--paper:#f7f8fa;--muted:#b9bdc9;--line:#343740;--display:Unbounded, sans-serif;--body:Onest,sans-serif;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px;scrollbar-color:var(--yellow) var(--ink)}body{margin:0;background:var(--ink);color:var(--paper);font:400 17px/1.55 var(--body)}::selection{background:var(--yellow);color:var(--ink)}a{color:inherit;text-decoration:none;text-underline-offset:5px}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,aside:focus-visible{outline:3px solid var(--red);outline-offset:5px}button{color:inherit}img{display:block;max-width:100%;height:auto}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--display);line-height:1.12;letter-spacing:-.035em;text-wrap:balance}h2{font-size:clamp(32px,4vw,54px);font-weight:750}h3{font-size:23px;font-weight:650}p{max-width:65ch}button{border:0}button span,a span{pointer-events:none}[hidden]{display:none!important}.wrap{width:min(1320px,calc(100% - 88px));margin-inline:auto}.light{background:var(--paper);color:var(--ink);color-scheme:light}.yellow-text{color:var(--yellow)}.red-text{color:#e52c19}.yellow-surface{background:var(--yellow);color:var(--ink);color-scheme:light}.skip{position:absolute;left:20px;top:-80px;z-index:100;background:var(--yellow);color:var(--ink);padding:12px}.skip:focus{top:10px}.header{height:96px;display:flex;align-items:center;gap:40px;border-bottom:1px solid var(--line)}.brand{display:inline-flex;gap:10px;align-items:center;font:800 25px var(--display);letter-spacing:-.04em}.brand img{width:34px;max-height:36px}.header nav{margin-left:auto;display:flex;gap:32px;font-size:14px}.header nav a:hover,.login:hover{color:var(--yellow)}.login{font-weight:600;font-size:14px;display:flex;gap:24px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:24px;min-height:58px;padding:16px 24px;border-radius:999px;font-size:16px;font-weight:700;transition:background .2s,color .2s,transform .2s;line-height:1.25}.button span{font-size:24px;font-weight:400;line-height:1}.button:hover{transform:translateY(-2px)}.button.yellow{background:var(--yellow);color:var(--ink)}.button.yellow:hover{background:white}.button.ink{background:var(--ink);color:white}.button.ink:hover{background:#343740}.text-link{display:inline-flex;align-items:center;gap:18px;border-bottom:1px solid currentColor;padding:7px 0;font-size:15px;font-weight:600}.text-link:hover{color:var(--red)}
.hero{display:grid;grid-template-columns:.88fr 1.12fr;column-gap:44px;padding-top:70px}.hero h1{font-size:clamp(42px,4.7vw,67px);font-weight:800;line-height:1.09;letter-spacing:-.04em}.hero h1 span{color:var(--yellow)}.hero-copy>p{font-size:19px;line-height:1.55;color:var(--muted);margin:27px 0;max-width:470px}.hero-copy>.text-link{display:flex;width:max-content;margin-top:15px;color:var(--muted);font-size:14px}.hero-scene{align-self:center;min-width:0;padding-top:14px}.scene-bar{display:flex;justify-content:space-between;align-items:center;gap:14px;font-size:12px;color:var(--muted);margin-bottom:16px}.scene-bar span:first-child{color:var(--paper);display:flex;align-items:center;gap:7px}.scene-bar i{width:6px;height:6px;background:var(--yellow);border-radius:50%}.hero-screen{display:block;background:#0b0e11;padding:0;width:100%;border-radius:12px;overflow:hidden;box-shadow:0 22px 64px #0005;transform:perspective(1200px) rotateY(-4deg) rotateX(2deg)}.hero-screen img{width:100%;aspect-ratio:1440/850;object-fit:cover}.lesson-path{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:27px;font-size:12px;color:var(--muted)}.lesson-path>div{display:flex;gap:7px;align-items:center;white-space:nowrap}.lesson-path>b{font-weight:400;color:#969dab}.path-dot{border:1px solid #515663;display:grid;place-items:center;min-width:23px;height:23px;border-radius:50%;font-size:12px}.path-dot.active{background:var(--yellow);border-color:var(--yellow);color:var(--ink)}.next-step{margin-top:22px;padding:24px;display:flex;align-items:center;gap:15px;background:var(--yellow);color:var(--ink);border-radius:12px}.next-step img{width:33px}.next-step strong{font-size:16px;font-weight:700}.next-step p{font-size:13px;margin-top:4px}.next-step>span{font-size:28px;margin-left:auto}.hero-bottom{grid-column:1/-1;display:flex;align-items:center;gap:28px;margin-top:72px;border-top:1px solid var(--line);padding:23px 0;font-size:13px;color:var(--muted)}.hero-bottom>span{display:flex;align-items:center;gap:10px}.hero-bottom>span:before{content:'';width:5px;height:5px;background:var(--yellow)}.hero-bottom a{margin-left:auto;font-size:25px;color:var(--yellow)}
.personal,.help,.faq{padding:100px 0}.section-head{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center;margin-bottom:56px}.lead{font-size:22px;line-height:1.5}.section-head p+p{margin-top:18px;color:#515663;font-size:17px}.personal-demo{display:grid;grid-template-columns:.8fr 1.2fr;border-top:1px solid #ced1d8;padding-top:44px;gap:70px}.demo-controls h3{font-size:22px}.demo-controls>p{margin-top:18px;color:#515663}.case-switch{display:grid;gap:0;margin-top:35px;border-bottom:1px solid #ced1d8}.case-switch button{display:flex;justify-content:space-between;gap:20px;text-align:left;background:transparent;color:var(--ink);padding:23px 4px;border-top:1px solid #ced1d8;font-size:18px}.case-switch button.selected{font-weight:700;color:#d52816}.case-switch button span{font-size:24px}.demo-note{font-size:12px;color:#626775;display:block;margin-top:24px}.adaptive-stage{padding:30px 34px;background:white;border:1px solid #d8dae0;border-radius:16px}.answer-row{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:13px;color:#515663}.answer-state{background:#fff0eb;color:#b72c1b;padding:5px 10px;border-radius:99px}.answer-state.good{background:#e6f6ed;color:#147244}.equation{font-size:36px;font-weight:600;margin:22px 0 16px;letter-spacing:-.02em}.answer-detail{display:flex;align-items:center;gap:24px;padding-bottom:20px;border-bottom:1px solid #e2e4e9}.answer-detail>span{font-size:13px;color:#515663}.answer-detail strong{font-size:23px;font-weight:500}.answer-detail svg{width:20px;height:20px;stroke:var(--red);stroke-width:2;fill:none}.personal-reason{display:flex;gap:14px;padding:24px 0}.personal-reason img{width:27px;align-self:flex-start}.personal-reason strong{font-size:16px}.personal-reason p{font-size:15px;margin-top:6px;color:#515663}.recommendation{border-top:2px solid var(--ink);padding-top:22px}.recommendation>span{font-size:12px;color:#515663}.recommendation h3{font-size:21px;margin-top:8px}.recommendation p{font-size:15px;color:#515663;margin:12px 0 18px}.recommendation .button{min-height:46px;padding:12px 20px;font-size:14px}.task-area{margin-top:32px;padding:32px;background:var(--yellow);display:grid;grid-template-columns:1fr 1fr;gap:40px;border-radius:12px;scroll-margin:35px}.task-area h3{font-size:21px;margin-bottom:16px}.task-area label{font-size:14px}.task-area form>div{display:flex;gap:12px;margin-top:7px}.task-area input{width:100%;min-width:0;background:#fff;color:var(--ink);border:1px solid #75715a;border-radius:8px;padding:12px;caret-color:var(--red)}.task-area button{min-height:48px;font-size:14px}.task-area form>p{font-size:14px;margin-top:12px;min-height:22px}
.inside{padding-block:100px}.inside .lead{color:var(--muted)}.screen-selector{display:grid;grid-template-columns:repeat(3,1fr);border-bottom:1px solid #515663;margin-bottom:30px}.screen-selector button{background:none;text-align:left;padding:0 20px 22px 0;position:relative;color:var(--muted);font:600 21px var(--display);letter-spacing:-.03em}.screen-selector button span{display:block;font:400 14px var(--body);letter-spacing:0;margin-top:9px}.screen-selector button[aria-selected=true]{color:var(--yellow)}.screen-selector button[aria-selected=true]:after{content:'';position:absolute;height:3px;background:var(--yellow);bottom:-2px;left:0;right:24px}.app-screen{display:block;position:relative;padding:0;width:100%;background:#0b0e11;border-radius:12px;overflow:hidden;border:1px solid var(--line)}.app-screen img{width:100%;height:auto;aspect-ratio:1440/850;object-fit:cover}.app-screen>span{position:absolute;bottom:18px;right:18px;border-radius:99px;background:var(--yellow);color:var(--ink);font-size:13px;padding:9px 16px;display:flex;gap:15px;align-items:center}.app-screen b{font-size:20px;font-weight:400}#screen-caption{margin-top:16px;font-size:15px;color:var(--muted)}.help-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center}.help h2{font-size:clamp(32px,3.5vw,47px)}.help .lead{font-size:19px;margin:25px 0}.conversation{padding:32px;background:white;border:1px solid #d8dae0;border-radius:16px}.mentor{display:flex;gap:14px;align-items:center}.mentor img{width:54px;height:54px;border-radius:50%;object-fit:cover;object-position:60% center}.mentor strong{display:block;font-size:20px}.mentor span{font-size:12px;color:#515663}.question{margin:28px 0 18px 28px;padding:16px 20px;background:var(--ink);color:white;border-radius:16px 16px 2px 16px;font-size:16px}.reply{border-top:1px solid #ddd;padding-top:20px}.reply p+p{margin-top:14px}.subjects{padding-block:100px}.subjects .lead{color:var(--muted)}.subject-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.subject{position:relative;display:block;overflow:hidden;border-radius:12px;background:#23262e;aspect-ratio:1.25}.subject img{width:100%;height:100%;object-fit:cover;transition:transform .5s}.subject:hover img{transform:scale(1.035)}.subject h3{position:absolute;top:20px;left:20px;right:15px;font-size:clamp(18px,1.8vw,25px);text-shadow:0 2px 10px #000;letter-spacing:-.035em}.subject>span{position:absolute;left:20px;bottom:20px;font-size:14px;text-shadow:0 1px 7px black}.subject i{position:absolute;bottom:16px;right:16px;border-radius:50%;width:34px;height:34px;display:grid;place-items:center;font-style:normal;background:var(--yellow);color:var(--ink);font-size:21px}.more-subjects{margin-top:24px}.more-subjects summary{border-bottom:1px solid var(--line);padding:16px 0;display:flex;justify-content:space-between;cursor:pointer;font-size:16px}.more-subjects summary span{font-size:25px}.more-subjects[open] .subject-grid{margin-top:24px}.more-subjects[open] summary span{transform:rotate(45deg)}
.price{padding:86px 0}.price-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:90px}.trial h2{font-size:clamp(28px,3vw,42px)}.trial-number{display:flex;align-items:center;gap:25px;font:750 150px/1 var(--display);letter-spacing:-.04em;margin:30px 0}.trial-number span{font:600 32px/1.15 var(--display);letter-spacing:-.03em}.trial>p{font-size:17px;max-width:480px;margin-bottom:28px}.price-details{border-left:1px solid #b6a444;padding:15px 0 15px 60px;align-self:stretch;display:flex;flex-direction:column;justify-content:center}.price-details>span{font-size:14px}.price-value{font:700 clamp(42px,5vw,68px)/1.2 var(--display);letter-spacing:-.04em;margin:16px 0 24px}.price-value span{display:block;font:400 17px var(--body);letter-spacing:0;margin-top:8px}.price-details ul{list-style:none;margin:0 0 22px;padding:0}.price-details li{border-top:1px solid #c1ad42;padding:12px 0;font-size:16px}.price-details>p{font-size:14px;max-width:350px}.price-details .text-link{align-self:flex-start;margin-top:16px}.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}.faq h2{font-size:36px}.faq details{border-bottom:1px solid #c8cbd2}.faq details:first-child{border-top:1px solid #c8cbd2}.faq summary{list-style:none;display:flex;justify-content:space-between;gap:20px;align-items:center;padding:24px 0;font-size:18px;font-weight:600;cursor:pointer}.faq summary span{font-size:25px;font-weight:400}.faq summary::-webkit-details-marker,.more-subjects summary::-webkit-details-marker{display:none}.faq details[open] summary span{transform:rotate(45deg)}.faq details>p{font-size:16px;color:#515663;padding:0 35px 24px 0}.final{padding-block:100px;text-align:center;position:relative}.final h2{font-size:clamp(34px,4.5vw,64px);margin-bottom:35px}.back-top{display:block;width:max-content;margin:25px auto 0;color:var(--muted);font-size:13px}footer{padding:44px max(44px,calc((100vw - 1320px)/2));border-top:1px solid var(--line);font-size:13px;color:var(--muted)}footer .brand{color:white;margin-bottom:28px}.links{display:flex;flex-wrap:wrap;gap:20px}.links a{border-bottom:1px solid #626775}.footer-legal{display:flex;justify-content:space-between;gap:24px;margin-top:28px;font-size:12px}.payment-marks{display:flex;align-items:center;gap:40px;border-top:1px solid var(--line);margin-top:28px;padding-top:24px}.acquiring-bank{display:flex;align-items:center;gap:10px;font-size:17px;color:white}.acquiring-bank img{width:24px;height:28px}.payment-systems{display:flex;gap:18px;align-items:center}.payment-systems>span{display:grid;place-items:center;background:white;border-radius:4px;padding:5px 8px;width:54px;height:30px}.payment-systems img{max-height:20px;max-width:38px}
.scroll-score{position:fixed;left:18px;bottom:18px;z-index:20;background:var(--ink);color:white;border:1px solid #555862;border-radius:12px;padding:14px 16px;width:139px;transition:opacity .2s}.score-value{display:flex;gap:12px;align-items:center}.score-value strong{font:700 38px/1 var(--display);font-variant-numeric:tabular-nums;letter-spacing:-.035em}.score-value span{font-size:12px;display:block}.score-value b{font:600 12px var(--body);color:var(--yellow);display:block;margin-top:3px}.score-track{height:3px;background:#484c56;margin-top:12px;overflow:hidden;border-radius:2px}.score-track i{display:block;background:var(--yellow);height:100%;transform-origin:left;transform:scaleX(var(--score-progress,0))}dialog{width:min(1450px,96vw);max-height:92vh;padding:0;background:var(--ink);border:1px solid #515663;border-radius:12px;overflow:auto}dialog::backdrop{background:#080b10df}dialog img{width:100%;margin-top:42px}.dialog-close{position:fixed;right:max(3vw,calc((100vw - 1450px)/2 + 12px));top:6vh;width:44px;height:44px;background:var(--yellow);color:var(--ink);border-radius:50%;font-size:30px;z-index:1}body:has(dialog[open]){overflow:hidden}body:has(dialog[open]) .scroll-score{visibility:hidden}
@media(min-width:1500px){.hero{column-gap:70px;padding-top:90px}.hero h1{font-size:72px}.hero-scene{padding-top:30px}}
@media(max-width:1050px){.wrap{width:calc(100% - 56px)}.hero{column-gap:25px;padding-top:52px;grid-template-columns:.95fr 1.05fr}.hero h1{font-size:48px}.hero-copy>p{font-size:17px}.scene-bar>span:last-child{display:none}.next-step{padding:18px}.next-step p{font-size:12px}.lesson-path{font-size:12px;gap:5px}.path-dot{min-width:19px;height:19px;font-size:12px}.section-head,.help-grid{gap:40px}.personal-demo{gap:35px}.price-layout{gap:45px}.price-details{padding-left:35px}.subject h3{font-size:19px}.header nav{gap:20px}.header{gap:25px}.faq-grid{gap:40px}}
@media(max-width:760px){.wrap{width:calc(100% - 40px)}body{font-size:16px}.header{height:76px;gap:12px}.header nav{display:none}.header .login{margin-left:auto}.brand{font-size:23px}.brand img{width:30px}.hero{grid-template-columns:1fr;padding-top:40px;gap:35px}.hero h1{font-size:clamp(40px,8.5vw,58px)}.hero h1 span br{display:none}.hero-copy>p{font-size:17px;max-width:520px;margin:23px 0}.button{min-height:54px;font-size:15px;padding:15px 21px}.hero-copy .button{width:100%;max-width:400px}.hero-copy>.text-link{font-size:14px}.hero-scene{padding-top:0}.scene-bar{font-size:12px}.hero-screen{transform:none;box-shadow:none}.lesson-path{font-size:12px;margin-top:18px}.path-dot{min-width:20px;height:20px}.next-step{margin-top:18px;gap:12px}.next-step strong{font-size:14px}.next-step p{font-size:12px}.next-step img{width:26px}.next-step>span{display:none}.hero-bottom{margin-top:0;padding:20px 0 26px;gap:10px;flex-wrap:wrap;font-size:12px}.hero-bottom>span{gap:6px}.hero-bottom a{display:none}.personal,.help,.faq{padding:60px 0}.section-head{grid-template-columns:1fr;gap:25px;margin-bottom:34px}h2{font-size:clamp(30px,7vw,42px)}.lead{font-size:19px}.section-head p+p{font-size:16px;margin-top:12px}.personal-demo{grid-template-columns:1fr;gap:25px;padding-top:26px}.demo-controls h3{font-size:20px}.demo-controls>p{font-size:15px;margin-top:12px}.case-switch{display:flex;margin-top:20px;border:1px solid #c8cbd2;border-radius:99px;padding:4px;gap:2px}.case-switch button{border:0;padding:12px 10px;font-size:13px;flex:1;justify-content:center;border-radius:99px;white-space:nowrap}.case-switch button.selected{background:var(--ink);color:white}.case-switch button span{display:none}.demo-controls .demo-note{margin-top:12px}.adaptive-stage{padding:23px 20px}.answer-row{font-size:12px}.equation{font-size:29px}.answer-detail{gap:18px}.answer-detail strong{font-size:21px}.personal-reason p{font-size:14px}.recommendation h3{font-size:19px}.task-area{grid-template-columns:1fr;gap:20px;padding:24px 20px}.task-area form>div{flex-wrap:wrap}.task-area input{min-height:48px}.inside,.subjects{padding-block:60px}.screen-selector{margin-bottom:20px}.screen-selector button{font-size:15px;padding:0 4px 17px}.screen-selector button span{font-size:12px;max-width:95px}.screen-selector button[aria-selected=true]:after{right:10px}.app-screen{border-radius:8px}.app-screen>span{right:8px;bottom:8px;font-size:12px;padding:5px 10px;gap:7px}.app-screen b{font-size:16px}#screen-caption{font-size:13px}.help-grid{grid-template-columns:1fr;gap:30px}.help h2{font-size:32px}.help .lead{font-size:17px;margin:20px 0}.conversation{padding:24px 20px}.question{margin-left:15px;font-size:15px}.reply{font-size:15px}.subject-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.subject{aspect-ratio:.85}.subject img{object-position:center}.subject h3{font-size:clamp(12px,3.2vw,20px);top:12px;left:12px;right:8px;letter-spacing:-.04em}.subject>span{left:12px;bottom:14px;font-size:12px;max-width:80px}.subject i{width:27px;height:27px;right:9px;bottom:10px;font-size:19px}.price{padding:56px 0}.price-layout{grid-template-columns:1fr;gap:38px}.trial h2{font-size:30px}.trial-number{font-size:120px;gap:24px;margin:25px 0}.trial-number span{font-size:28px}.trial>p{font-size:16px}.price-details{border-left:0;border-top:1px solid #b6a444;padding:30px 0 0}.price-value{font-size:58px}.faq-grid{grid-template-columns:1fr;gap:30px}.faq h2{font-size:30px}.faq summary{font-size:16px;padding:21px 0}.faq details>p{font-size:15px;padding-right:0}.final{padding-block:60px}.final h2{font-size:32px}footer{padding:36px 20px}.links{gap:14px;font-size:12px}.footer-legal{flex-direction:column;gap:14px;font-size:12px}.payment-marks{flex-wrap:wrap;gap:22px}.payment-systems{gap:12px}.scroll-score{left:10px;bottom:10px;width:109px;padding:10px 12px}.score-value{gap:9px}.score-value strong{font-size:29px}.score-value span{font-size:12px}.score-value b{font-size:12px}.score-track{margin-top:9px}.dialog-close{top:5vh;right:4vw}dialog{width:96vw}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.button:hover,.subject:hover img{transform:none}}

@media(max-width:380px){.lesson-path{display:grid;grid-template-columns:repeat(3,1fr);gap:5px}.lesson-path>div{flex-direction:column;gap:6px}.lesson-path>b{display:none}.hero h1{font-size:36px}.next-step{padding:15px}.next-step p{font-size:12px}.scroll-score{width:116px}.score-value{gap:7px}}
.cookie-settings{display:block;background:none;border:0;border-bottom:1px solid #626775;color:var(--muted);padding:8px 0;margin-top:20px;font-size:13px;min-height:44px}.cookie-notice{position:fixed;z-index:80;bottom:18px;left:18px;right:18px;max-width:980px;margin:auto;background:#fff;color:#12141b;border:1px solid #d8dae0;border-radius:14px;padding:22px 26px;display:flex;align-items:center;gap:28px}.cookie-notice strong{font-size:17px}.cookie-notice p{font-size:13px;line-height:1.5;margin-top:7px}.cookie-notice a{text-decoration:underline}.cookie-actions{display:flex;gap:10px;flex-shrink:0}.cookie-actions button{padding:12px 17px;border-radius:99px;background:#e8eaef;color:#12141b;font-size:14px;font-weight:600;min-height:44px}.cookie-actions button[data-consent=accepted]{background:#fee252}body:has(.cookie-notice) .scroll-score{visibility:hidden}@media(max-width:760px){.cookie-notice{bottom:10px;left:10px;right:10px;padding:18px;display:block}.cookie-notice p{font-size:12px}.cookie-actions{margin-top:14px;justify-content:flex-end}}