:root{--bg:#000;--surface:#0b0b0d;--surface2:#111114;--surface3:#17171c;--white:#f8f8fa;--muted:#8b8b97;--subtle:#656571;--border:#24242b;--purple:#b64ae0;--lavender:#d0a2f3;--green:#a5dcc0;--max:1220px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--white);font-family:Inter,"SF Pro Display",-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{font:inherit}button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--lavender);outline-offset:5px}::selection{background:var(--purple);color:#fff}.container{width:min(var(--max),calc(100% - 96px));margin:auto}.section{position:relative}.skip-link{position:fixed;top:-60px;left:14px;background:#fff;color:#000;padding:12px 16px;z-index:200}.skip-link:focus{top:14px}.site-header{height:88px;position:sticky;top:0;z-index:100;background:rgba(0,0,0,.88);backdrop-filter:blur(22px);border-bottom:1px solid rgba(255,255,255,.07)}.header-inner{height:100%;display:flex;align-items:center;gap:30px}.brand{display:inline-flex;align-items:center;gap:9px;font-size:25px;font-weight:750;letter-spacing:-1.7px;white-space:nowrap}.brand-mark{flex:none}.brand-dot{color:var(--purple)}.desktop-nav{margin-left:auto;display:flex;align-items:center;gap:34px}.desktop-nav a{color:#a1a1ab;font-size:13px;font-weight:540;transition:color .2s}.desktop-nav a:hover{color:#fff}.header-cta{display:inline-flex;align-items:center;gap:18px;padding:12px 17px;background:#17171b;border:1px solid #2e2e35;border-radius:999px;font-size:12px;font-weight:630;white-space:nowrap;transition:background .2s,border .2s}.header-cta:hover{background:#26252b;border-color:#484251}.header-cta span{color:var(--lavender);font-size:16px}.menu-toggle{display:none;background:transparent;border:0;width:44px;height:44px;padding:12px;cursor:pointer}.menu-toggle span{display:block;height:2px;width:100%;background:#fff;margin:6px 0}.mobile-menu{display:none}
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span{transform:translate(3px,-3px)}.hero-note{display:flex;align-items:center;gap:14px;color:#65616f;font-size:11px;margin-top:80px}.hero-note-line{height:1px;width:28px;background:#5a515f}.hero-visual{height:660px;min-width:0;display:flex;align-items:center;justify-content:center;position:relative}.orbital{position:absolute;border:1px solid rgba(156,137,169,.13);border-radius:50%;pointer-events:none}.orbital-one{width:620px;height:620px}.orbital-two{width:815px;height:815px;border-color:rgba(156,137,169,.045)}.visual-top-label,.visual-bottom-label{position:absolute;color:#9e97a7;letter-spacing:1.4px;font-weight:680;font-size:9px}.visual-top-label{top:13px;left:35px}.visual-label-mark{color:var(--purple);font-size:17px;vertical-align:-2px;margin-right:8px}.visual-bottom-label{bottom:34px;right:18px}.sparkle{color:var(--purple);font-size:16px;margin-right:8px}.visual-footnote{position:absolute;bottom:0;left:30px;color:#53505b;font-size:8px;letter-spacing:1.3px}.hero-app{position:relative;z-index:1;width:min(100%,440px);background:#101013;border:1px solid #2a2831;border-radius:22px;box-shadow:0 22px 110px rgba(0,0,0,.85),0 0 0 10px rgba(17,17,20,.24);overflow:hidden;transform:rotate(-1.5deg);transition:transform .45s ease,border-color .45s}.hero-app:hover{transform:rotate(0);border-color:#4b3955}.app-topbar{display:flex;align-items:center;justify-content:space-between;padding:19px 22px;border-bottom:1px solid #232228}.app-title{display:flex;align-items:center;gap:12px}.app-avatar{display:grid;place-items:center;width:36px;height:36px;border-radius:13px;background:#32213c;color:#d9b1f8}.app-avatar svg{width:20px}.app-title strong,.app-title small{display:block}.app-title strong{font-size:13px}.app-title small{color:#89838f;font-size:10px;margin-top:4px}.app-dots{display:flex;gap:4px}.app-dots span{height:3px;width:3px;border-radius:100%;background:#807686}.conversation{padding:28px 22px 22px}.message-user{margin-left:auto;width:80%;padding:13px 14px;border-radius:15px 15px 4px 15px;background:#27212d;color:#e9e4ec;font-size:12px;line-height:1.6}.assistant-line{display:flex;align-items:center;gap:9px;margin-top:26px;font-size:12px;font-weight:680}.assistant-icon{font-size:22px;color:var(--purple)}.app-explanation{font-size:12px;line-height:1.7;color:#a9a3af;margin:13px 0 18px}.app-explanation strong{color:#f5f0f6;font-weight:630}.example-card{background:#19181e;border:1px solid #2b2731;border-radius:12px;padding:15px 17px}.example-head{display:flex;align-items:center;justify-content:space-between;color:#9f96a8;font-weight:750;font-size:9px;letter-spacing:1.2px}.example-chip{color:#ceb0e6;background:#35253f;padding:5px 8px;border-radius:7px;letter-spacing:0}.example-row{display:flex;align-items:center;justify-content:space-between}.formula{font-size:18px;font-weight:650;letter-spacing:-1px}.formula span{color:var(--lavender)}.example-caption{display:flex;align-items:center;gap:8px;color:#bedfc7;font-size:10px}.green-dot{width:6px;height:6px;background:#8ed4a8;border-radius:50%}.assistant-question{margin-top:19px;color:#c4bec8;font-size:12px}.app-input{display:flex;align-items:center;gap:9px;margin:0 15px 15px;border:1px solid #333039;background:#1b1a20;border-radius:999px;height:53px;padding:5px 6px 5px 16px;color:#77727e;font-size:11px}.app-input>span:first-child{margin-right:auto}.app-input-mic{display:grid;place-items:center;width:36px;height:36px}.app-input-mic svg{width:17px;stroke:#bcb4c4;stroke-width:1.7;stroke-linecap:round}.app-send{display:grid;place-items:center;width:39px;height:39px;border-radius:50%;background:var(--purple)}.app-send svg{width:18px;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.hero-bottom{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #1d1d22;padding-top:20px;padding-bottom:24px;color:#706b77;font-size:9px;font-weight:690;letter-spacing:1.7px}.hero-bottom a{display:grid;place-items:center;border:1px solid #302b35;width:38px;height:38px;border-radius:50%;transition:background .2s}.hero-bottom a:hover{background:#201b26}.hero-bottom svg{stroke:#cbc3d0;stroke-width:1.5;fill:none;width:17px}
.features{padding:126px 0 154px}.section-top{display:flex;justify-content:space-between;align-items:flex-start}.overline{color:#ada6b1}.section-number{color:var(--purple);margin-right:15px}.section-top-right{font-size:13px;line-height:1.6;color:#77717e;text-align:right}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:35px;margin:28px 0 50px}.section-heading h2,.how h2,.demo-intro h2,.faq h2{font-size:clamp(40px,5vw,65px);line-height:1.11;letter-spacing:-.065em;font-weight:690;margin:0}.section-heading h2 .muted{color:#7d7a83}.section-heading p{color:#8b8792;line-height:1.8;max-width:330px;font-size:14px;margin:0 0 5px}.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.feature-card{display:flex;flex-direction:column;min-height:485px;border:1px solid #25242a;background:#0b0b0d;border-radius:17px;padding:24px;position:relative;overflow:hidden;transition:background .3s,border .3s,transform .3s}.feature-card:hover{background:#101014;border-color:#46404d;transform:translateY(-4px)}.feature-large{grid-row:span 2;min-height:986px}.card-top{display:flex;justify-content:space-between;align-items:start;gap:20px}.card-index{color:#98919e;font-size:10px}.card-arrow{font-size:22px;font-weight:300;color:#99909e}.card-info{margin-top:auto;position:relative;z-index:2}.card-info h3{font-size:clamp(24px,2.3vw,32px);font-weight:650;letter-spacing:-.04em;line-height:1.15;margin:0 0 14px}.card-info p{font-size:13px;line-height:1.85;color:#8d8793;max-width:390px;margin:0}.feature-illustration{flex:1;position:relative;min-height:190px;display:flex;align-items:center;justify-content:center}.teacher-illustration{min-height:670px;flex-direction:column;gap:18px}.teacher-illustration:before{content:"";position:absolute;border:1px solid #1e1b22;border-radius:50%;height:460px;width:460px}.illustration-bubble{align-self:flex-end;position:relative;z-index:2;margin-right:20px;background:#29212f;color:#e1d7e5;padding:16px 18px;border-radius:14px 14px 4px 14px;font-size:13px}.illustration-answer{position:relative;z-index:2;display:flex;gap:13px;width:83%;border:1px solid #32283d;background:#17121c;padding:23px 20px;border-radius:14px}.illustration-symbol{font-size:24px;color:var(--purple)}.illus-lines{padding-top:8px}.illus-lines i{display:block;width:190px;max-width:100%;height:5px;background:#484050;border-radius:50px;margin-bottom:12px}.illus-lines i:nth-child(2){width:140px;background:#35303b}.illus-lines i:nth-child(3){width:170px;background:#322c38}.illustration-answer span{font-size:11px;color:#9d91a5}.illustration-step{position:relative;z-index:2;border:1px solid #353039;background:#1a191d;border-radius:11px;align-self:flex-start;display:flex;gap:12px;align-items:center;padding:14px 16px;font-size:12px}.illustration-step span{color:#d8b5f0}.illustration-step b{color:#a4dec2;margin-left:24px}.docs-illustration{min-height:246px}.doc{width:176px;height:154px;background:#202025;border-radius:12px;border:1px solid #3a363f;position:absolute;padding:20px;box-shadow:0 15px 25px rgba(0,0,0,.35)}.doc-back{transform:translate(45px,-20px) rotate(10deg);background:#1a1820}.doc-back div{height:6px;margin:16px;background:#33303a;border-radius:20px}.doc-front{transform:translate(-26px,6px) rotate(-6deg);display:flex;flex-direction:column;gap:10px}.doc-front .doc-icon{font-size:25px;color:#d4b3f4;line-height:1}.doc-front strong{font-size:11px}.doc-front i{display:block;width:100%;height:5px;background:#44404b;border-radius:99px}.doc-front i:nth-last-child(1){width:55%}.doc-badge{position:absolute;bottom:1px;right:0;background:#2d2335;border:1px solid #4a3056;color:#e0b5f7;border-radius:999px;padding:8px 13px;font-size:9px;letter-spacing:.2px}.progress-illustration{flex-direction:column;align-items:stretch;justify-content:center;padding:15px 24px;min-height:245px}.progress-illustration-title{display:flex;justify-content:space-between;font-size:13px;font-weight:630;margin-bottom:24px}.progress-illustration-title span{color:var(--lavender)}.progress-illustration-rows{display:grid;grid-template-columns:85px 1fr;align-items:center;row-gap:17px;column-gap:12px}.progress-label{color:#9d97a2;font-size:10px}.progress-track{width:100%;height:5px;border-radius:10px;background:#26232a;overflow:hidden}.progress-track span{display:block;height:100%;background:#b77bdc;border-radius:10px}.progress-demo{font-size:8px;color:#5d5665;letter-spacing:1.1px;text-align:right;margin-top:20px}
.how{border-top:1px solid #202025;border-bottom:1px solid #202025;padding:150px 0;background:#060607}.how-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:11%}.how-left h2{margin:33px 0 25px}.how-left h2 span{color:var(--lavender)}.how-left p{font-size:14px;line-height:1.9;max-width:340px;color:#97919d;margin-bottom:32px}.how-steps{padding-top:5px}.how-step{display:grid;grid-template-columns:36px 1fr 34px;gap:21px;padding:33px 0;border-bottom:1px solid #25232b}.how-step:first-child{border-top:1px solid #25232b}.step-no{font-size:11px;color:#aa8abb;font-weight:740}.how-step h3{margin:0 0 12px;font-size:18px;font-weight:635;letter-spacing:-.03em}.how-step p{margin:0;color:#8d8993;font-size:13px;line-height:1.7}.step-icon{font-size:20px;color:#b698c8;text-align:right}
.demo-section{padding:150px 0}.demo-intro{max-width:650px;margin-bottom:48px}.demo-intro h2{margin:31px 0 22px}.demo-intro h2 span{color:var(--lavender)}.demo-intro p{color:#918c98;font-size:14px;line-height:1.8;max-width:570px}.demo-shell{border:1px solid #27232d;background:#0b0b0e;min-height:460px;border-radius:19px;display:grid;grid-template-columns:280px 1fr;overflow:hidden;box-shadow:0 38px 110px rgba(0,0,0,.35)}.demo-sidebar{border-right:1px solid #25212b;padding:27px 16px}.demo-sidebar-heading{display:flex;align-items:center;gap:10px;padding:0 12px;font-size:13px;font-weight:650}.demo-sidebar-logo{color:var(--purple);font-size:22px}.demo-sidebar-subtitle{font-size:9px;letter-spacing:1.3px;font-weight:700;color:#67606d;padding:38px 12px 14px}.demo-tabs{display:flex;flex-direction:column;gap:6px}.demo-tab{width:100%;display:flex;align-items:center;gap:13px;text-align:left;background:transparent;border:1px solid transparent;color:#9b96a0;padding:15px 13px;border-radius:10px;font-size:12px;cursor:pointer}.demo-tab>span:first-child{font-size:19px;color:#98819f;width:23px;text-align:center}.demo-tab.active{background:#28202f;border-color:#44314e;color:#efdaff}.demo-tab:hover:not(.active){background:#17131b;color:#fff}.demo-tab.active>span:first-child{color:var(--lavender)}.tab-arr{margin-left:auto;opacity:0}.demo-tab.active .tab-arr{opacity:1}.demo-main{padding:25px 37px}.demo-frame-header{display:flex;align-items:center;gap:9px;color:#8b818f;font-size:9px;border-bottom:1px solid #28242d;padding-bottom:20px}.demo-small-dot{display:inline-block;background:#bb8fd3;width:5px;height:5px;border-radius:50%}.demo-mockup-label{margin-left:auto;color:#726778}.demo-panel{padding:32px 10px 25px;animation:enter .25s ease}.demo-panel[hidden]{display:none}.demo-kicker{color:#b98bd2;font-size:9px;margin-bottom:22px}.demo-panel h3{font-size:26px;letter-spacing:-.045em;margin:0 0 13px;font-weight:650;line-height:1.18}.demo-panel>p{color:#a39ca8;line-height:1.7;font-size:13px;max-width:525px}.demo-panel>p strong{color:#fff}.formula-list{display:grid;grid-template-columns:repeat(3,1fr);gap:11px;margin-top:27px}.formula-item{display:flex;align-items:center;gap:12px;border:1px solid #302b35;background:#151319;border-radius:10px;padding:15px 12px}.formula-symbol{font-size:23px;color:var(--lavender)}.formula-symbol.negative{color:#ecafa9}.formula-symbol.steady{color:#a9c6cd}.formula-item strong,.formula-item small{display:block}.formula-item strong{font-size:13px}.formula-item small{color:#97919e;font-size:10px;margin-top:5px}.demo-tip{display:flex;align-items:flex-start;gap:13px;border-top:1px solid #2a2530;margin-top:29px;padding-top:22px;font-size:12px;color:#a99bb2;line-height:1.7}.demo-tip>span{font-size:20px;color:var(--purple);line-height:1}.quiz-options{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}.quiz-option{background:#1a171f;color:#ece6ef;border:1px solid #3a303f;border-radius:10px;padding:13px 17px;min-height:47px;display:flex;gap:18px;align-items:center;cursor:pointer;transition:background .2s,border-color .2s}.quiz-option:hover{background:#302338;border-color:#765282}.quiz-option[disabled]{cursor:default}.quiz-option.correct{background:#1e382d;border-color:#477b61;color:#c5f4d8}.quiz-option.incorrect{background:#3a2024;border-color:#90525b;color:#ffced3}.quiz-option span{color:#b997d0}.quiz-feedback{min-height:48px;margin-top:25px!important;color:#a9a0b0!important}.quiz-feedback.success{color:#b5e2c2!important}.demo-progress-list{max-width:490px;display:flex;flex-direction:column;gap:19px;margin:28px 0 6px}.demo-progress-list>div>span{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:#c9c2cf;margin-bottom:10px}.demo-progress-list b{color:#a77cbf}.demo-progress-bar{height:7px;background:#24202a;border-radius:30px;overflow:hidden}.demo-progress-bar i{display:block;height:100%;background:#a36bc6;border-radius:30px}
.philosophy{padding:110px 0 125px;background:#0d0a11;border-top:1px solid #27202b;border-bottom:1px solid #27202b}.philosophy-inner{max-width:1010px}.philosophy-mark{font-size:67px;color:var(--purple);line-height:.6;font-family:Georgia,serif}.philosophy blockquote{font-size:clamp(31px,4.5vw,57px);font-weight:560;line-height:1.25;letter-spacing:-.055em;margin:30px 0 37px}.philosophy blockquote span{color:var(--lavender)}.philosophy-caption{color:#8e7f98;font-weight:700;font-size:10px;letter-spacing:1.8px}.faq{padding:150px 0}.faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:12%}.faq h2{margin:33px 0}.faq h2 span{color:var(--lavender)}.faq-list{border-top:1px solid #2c2830}.faq-list details{border-bottom:1px solid #2c2830}.faq-list summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:26px 1px;font-weight:600;letter-spacing:-.015em;font-size:15px}.faq-list summary::-webkit-details-marker{display:none}.faq-plus{color:var(--lavender);font-size:24px;font-weight:350;transition:transform .25s}.faq-list details[open] .faq-plus{transform:rotate(45deg)}.faq-list details p{margin:0 0 24px;line-height:1.8;color:#a49da9;font-size:13px;max-width:590px}.closing{padding:10px 0 110px}.closing-inner{min-height:530px;position:relative;overflow:hidden;border:1px solid #413049;border-radius:20px;background:#1b1322;padding:74px 72px;isolation:isolate}.closing-overline{display:flex;align-items:center;gap:12px;color:#dec5ed}.closing h2{font-size:clamp(50px,6vw,84px);line-height:1.1;letter-spacing:-.07em;margin:31px 0 24px;position:relative;z-index:2}.closing h2 em{color:var(--lavender);font-style:normal}.closing p{color:#b3a3be;font-size:14px;line-height:1.8;max-width:470px;position:relative;z-index:2}.btn-light{margin-top:22px;background:#fff;color:#171119;position:relative;z-index:2}.btn-light:hover{background:#f0e5fa}.closing-grid{position:absolute;width:420px;height:420px;top:55px;right:-20px;border-radius:50%;border:1px solid rgba(221,188,240,.12);box-shadow:0 0 0 52px rgba(0,0,0,0),0 0 0 53px rgba(221,188,240,.08),0 0 0 115px rgba(0,0,0,0),0 0 0 116px rgba(221,188,240,.05)}.closing-grid:before{content:"✳";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-size:240px;font-weight:300;color:rgba(204,149,238,.08)}.site-footer{border-top:1px solid #222027;padding:42px 0 24px}.footer-main{display:flex;justify-content:space-between;align-items:center;gap:25px;padding-bottom:42px}.footer-main>span{color:#79737f;font-size:13px}.footer-main>a:last-child{font-size:13px;color:#bca6ca}.footer-bottom{border-top:1px solid #1e1c22;padding-top:24px;display:flex;justify-content:space-between;gap:20px;color:#655f6b;font-size:11px}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .75s ease,transform .75s cubic-bezier(.2,.7,.2,1)}.reveal.is-visible{opacity:1;transform:none}@keyframes enter{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:1120px){.container{width:min(var(--max),calc(100% - 64px))}.desktop-nav{gap:18px}.hero h1{font-size:clamp(61px,7.8vw,94px)}.hero-lead{font-size:15px}.hero-visual{height:600px}.hero-app{width:95%}.visual-top-label{left:10px}.feature-large{min-height:930px}.teacher-illustration{min-height:620px}.how-grid{gap:7%}.faq-layout{gap:8%}}
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