:root{--paper:#fbf8ee;--cream:#fff7d6;--butter:#fff2b2;--yellow:#ffe08a;--blue:#a8c6e7;--blue-deep:#7fa8d6;--ink:#293e53;--muted:#65717b;--line:rgba(41,62,83,.19);--serif:'Lora',Georgia,serif;--sans:'Manrope',Arial,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:35px}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.65 var(--sans);-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button{color:inherit;cursor:pointer}button,a{touch-action:manipulation}button{border:0}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #416b96;outline-offset:5px}button:disabled{opacity:.45;cursor:default}h1,h2,h3,p{margin:0}h1,h2{font-family:var(--serif);font-weight:400;letter-spacing:-.055em;line-height:1.13}h2{font-size:clamp(38px,4.1vw,56px)}h2 em{font-weight:400;color:#4a7298}h3{font-weight:600;letter-spacing:-.035em}p{max-width:65ch}em{font-weight:400}.wrap{max-width:1280px;width:calc(100% - 112px);margin:auto}.header{min-height:118px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:inline-flex;gap:13px;align-items:center;font-size:23px;font-weight:700;line-height:1.02;letter-spacing:-1.1px;flex-shrink:0}.brand-caption{display:block;font-size:9px;font-weight:500;line-height:1.5;letter-spacing:.035em;margin-top:9px}.brand-mark{width:45px;height:56px;position:relative;display:block}.brand-mark:before{content:'';position:absolute;width:32px;height:35px;border-left:1.8px solid var(--ink);border-bottom:1.8px solid var(--ink);transform:rotate(30deg) skewY(-30deg);left:8px;top:10px}.brand-mark i{position:absolute;width:9px;height:9px;border-radius:50%;background:var(--blue-deep);top:0;left:20px}.brand-mark i:nth-child(2){left:0;top:40px;background:var(--yellow)}.brand-mark i:nth-child(3){left:37px;top:40px;background:var(--ink)}.header nav{display:flex;gap:26px;font-size:12px;font-weight:600}.header nav a{padding:10px 0;position:relative}.header nav a:after{content:'';position:absolute;height:1px;background:var(--ink);bottom:6px;left:0;right:100%;transition:right .2s}.header nav a:hover:after{right:0}.button{display:inline-flex;align-items:center;justify-content:center;gap:32px;border-radius:8px;background:var(--ink);color:var(--paper);padding:17px 23px;font-size:13px;font-weight:600;line-height:1.4;border:1px solid var(--ink);transition:background .2s,transform .2s}.button:hover{background:#3b5874;transform:translateY(-2px)}.button span{font-size:22px;line-height:1}.button-small{font-size:11px;gap:18px;padding:13px 17px}.button-outline{color:var(--ink);background:transparent}.button-outline:hover{color:var(--paper)}.menu-toggle{display:none}.hero{position:relative;display:grid;grid-template-columns:1.1fr 1fr;gap:15px;padding-top:59px;padding-bottom:73px;align-items:center}.eyebrow{font-size:10px;letter-spacing:.13em;font-weight:700;line-height:1.7;text-transform:uppercase}.hero .eyebrow{letter-spacing:.07em;font-size:10px;text-transform:none;display:flex;gap:9px;align-items:center}.little-dot{width:6px;height:6px;background:var(--blue-deep);border-radius:50%}.hero h1{font-size:clamp(50px,4.7vw,67px);line-height:1.16;margin-top:23px;position:relative;letter-spacing:-.06em;white-space:nowrap}.hero h1 em{color:#4a7298}.underline{position:absolute;bottom:-12px;width:75%;left:0;height:18px;fill:none;stroke:var(--blue-deep);stroke-width:2;stroke-linecap:round;opacity:.65}.hero-description{max-width:430px;font-size:13px;line-height:1.9;color:#596876;margin-top:34px}.hero-actions{display:flex;align-items:center;gap:23px;margin-top:29px}.text-button{background:none;border:0;font-size:11px;font-weight:600;padding:7px 0;border-bottom:1px solid var(--line);line-height:1.6;text-align:left}.text-button:hover{border-color:var(--ink)}.hero-note{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-size:12px;font-style:italic;margin-top:27px;color:#647483}.hero-note svg{width:39px;height:26px;stroke:var(--blue-deep);stroke-width:1.7;fill:none;flex-shrink:0}.hero-art{position:relative;min-width:0;isolation:isolate;align-self:stretch;display:flex;align-items:center;margin:0 -15px 0 15px}.hero-art img{position:relative;width:114%;max-width:none;height:auto;object-fit:contain;margin-left:-6%;z-index:1}.art-shape{position:absolute;background:var(--butter);width:95%;height:82%;border-radius:51% 49% 43% 57% / 53% 41% 59% 47%;top:9%;right:0;transform:rotate(-12deg);z-index:0}.art-caption{position:absolute;top:0;right:5%;font:italic 13px/1.6 var(--serif);transform:rotate(6deg);z-index:2}.art-formula{position:absolute;left:6%;bottom:10%;font:italic 17px var(--serif);transform:rotate(-6deg);z-index:2}.art-dot{width:9px;height:9px;border-radius:50%;background:var(--ink);position:absolute;right:7%;bottom:12%}.intro-strip{border-block:1px solid var(--line);background:rgba(255,247,214,.4)}.strip-inner{display:flex;justify-content:space-between;padding-block:19px;gap:18px;font-size:10px;font-weight:600}.strip-inner span{display:flex;gap:12px;align-items:center}.strip-inner i{font-size:24px;font-style:normal;line-height:1;color:#5379a0}.section{padding-block:93px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:60px;margin-bottom:36px}.section-heading .eyebrow{margin-bottom:17px}.section-intro{font-size:13px;color:#62717d;line-height:1.9;max-width:330px}.filter-tabs{display:flex;gap:8px;margin-bottom:25px}.filter-tabs button,.price-tabs button{border:1px solid var(--line);border-radius:100px;background:transparent;padding:9px 17px;font-size:10px;font-weight:600;transition:background .2s}.filter-tabs button.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink)}.subject-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.subject-card{padding:25px 26px 18px;min-width:0;border-radius:12px;display:flex;flex-direction:column;transition:transform .25s}.subject-card:hover{transform:translateY(-5px)}.yellow{background:var(--butter)}.blue{background:var(--blue)}.cream{background:#eeeadd}.card-top{display:flex;align-items:center;justify-content:space-between}.tag{font-size:9px;border:1px solid rgba(41,62,83,.3);border-radius:100px;padding:5px 11px;font-weight:600;display:inline-flex;align-items:center}.card-number{font:italic 11px var(--serif)}.subject-art{height:159px;position:relative;display:flex;align-items:center;justify-content:center}.subject-art svg{fill:none;stroke:var(--ink);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;position:absolute;width:90%;height:140px}.arithmetic{gap:16px;font:italic 80px var(--serif)}.arithmetic span:nth-child(1){transform:rotate(-10deg)}.arithmetic span:nth-child(2){font-size:35px}.arithmetic span:nth-child(3){transform:rotate(12deg)}.arithmetic svg{height:50px;bottom:5px}.algebra>span:first-child{font:96px var(--serif);position:absolute;left:5%;top:23px;transform:rotate(-9deg)}.algebra>span:nth-child(2){position:absolute;right:12%;font:italic 80px var(--serif);transform:rotate(9deg)}.algebra svg{opacity:.3;width:55%;left:13%;bottom:15px}.geometry svg{height:137px;transform:rotate(-5deg)}.geometry span{position:absolute;right:17%;bottom:23px;font:italic 34px var(--serif)}.subject-card h3{font:500 30px var(--serif);letter-spacing:-.04em;margin-bottom:10px}.subject-card p{font-size:11px;line-height:1.9;min-height:65px;max-width:290px}.card-link{margin-top:20px;padding:15px 0 0;border-top:1px solid rgba(41,62,83,.2);background:none;display:flex;align-items:center;justify-content:space-between;font-size:10px;font-weight:700;text-align:left;width:100%}.card-link span{font-size:24px}.under-cards{font-size:11px;color:var(--muted);margin-top:25px}.under-cards a{color:var(--ink);border-bottom:1px solid var(--line);margin-left:7px}.diagnostic-section{background:#dbe7f1;padding-block:80px;overflow:hidden}.diagnostic-layout{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center}.diagnostic-copy{position:relative}.diagnostic-copy h2{margin-top:19px}.diagnostic-copy>p:not(.eyebrow){max-width:350px;font-size:13px;margin-top:25px;line-height:1.9}.diagnostic-points{display:grid;gap:14px;margin-top:30px;font-size:12px;font-weight:500}.diagnostic-points span{display:flex;gap:14px;align-items:center}.diagnostic-points i{font:italic 12px var(--serif);border:1px solid rgba(41,62,83,.3);border-radius:50%;width:28px;height:28px;display:inline-grid;place-items:center}.diagnostic-copy .quiet-note{font:italic 13px/1.9 var(--serif)!important;margin-top:29px!important;color:#5e7384}.diagnostic-doodle{position:absolute;width:140px;height:90px;right:-10px;bottom:10px;fill:none;stroke:#577d9f;stroke-width:1.5;transform:rotate(15deg)}.diagnostic-card{background:var(--paper);border-radius:15px;padding:29px 32px;border:1px solid #c3d3df;box-shadow:5px 6px 0 rgba(41,62,83,.04)}.quiz-step{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:9px;letter-spacing:.08em}.demo-tag{background:var(--butter);border-radius:4px;padding:4px 7px;font-size:8px;letter-spacing:0}.diagnostic-card h3{font-size:22px;margin-top:15px}.muted{font-size:12px;color:var(--muted);line-height:1.8}.diagnostic-card>.muted{margin-top:4px}.grade-buttons{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;margin-top:20px}.grade-buttons button{height:43px;border-radius:7px;border:1px solid var(--line);background:transparent;font-size:14px;font-weight:600}.grade-buttons button.is-active{background:var(--yellow);border-color:var(--yellow)}.level-heading{margin-top:25px}.mini-label{font-size:9px;font-weight:600;letter-spacing:.08em}.level-heading h3{margin-top:7px;font-size:18px}.level-buttons{display:grid;gap:7px;margin-top:15px}.level-buttons button{display:grid;grid-template-columns:1fr auto;align-items:center;text-align:left;background:transparent;border:1px solid var(--line);padding:11px 15px;border-radius:7px;position:relative}.level-buttons button span{font-size:12px;font-weight:600}.level-buttons button small{grid-column:1;font-size:9px;color:var(--muted)}.level-buttons button i{grid-column:2;grid-row:1/3;font-style:normal;font-size:18px}.level-buttons button.is-active{background:#e6edf2;border-color:#7896b1}.quiz-launch{width:100%;margin-top:19px;justify-content:space-between}.demo-note{font-size:9px;line-height:1.8;color:var(--muted);margin-top:12px;max-width:100%;text-align:center}.diagnostic-card #restore-result{font-size:10px;margin-top:7px}.approach-layout{display:grid;grid-template-columns:1.1fr 1fr;gap:86px;align-items:center;margin-top:45px}.approach-list article{display:flex;gap:19px;padding-block:23px;border-top:1px solid var(--line)}.approach-list article>span{font:italic 14px var(--serif);padding-top:5px;color:#6587a4}.approach-list h3{font-size:17px;margin-bottom:10px}.approach-list p{font-size:12px;line-height:1.9;color:var(--muted);max-width:380px}.angle-playground{background:var(--cream);border:1px solid #e9dfbe;border-radius:12px;padding:23px 25px}.playground-top{display:flex;justify-content:space-between;align-items:center}.playground-top>span:last-child{font:25px var(--serif)}.angle-playground h3{font:400 26px/1.25 var(--serif);margin-top:15px}.angle-svg{width:100%;height:200px;margin-top:10px}.angle-base{stroke:var(--ink);stroke-width:2;stroke-linecap:round;fill:none}#angle-number{font:italic 27px var(--serif);fill:var(--ink)}.angle-playground label{display:block;font-size:10px;font-weight:600}.angle-playground input{width:100%;margin:20px 0 13px;accent-color:var(--ink);cursor:pointer}.angle-bottom{display:flex;justify-content:space-between;gap:15px;align-items:center;font-size:9px;min-height:37px}.angle-bottom .text-button{font-size:9px;white-space:nowrap}.prices-section{background:var(--cream);padding-block:80px;border-block:1px solid #e9e2c9}.prices-layout{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center}.prices-layout h2{margin-top:20px}.prices-layout .section-intro{margin-top:23px;max-width:370px}.prices-layout>.button,.prices-layout>div>.button{margin-top:27px}.price-card{background:var(--paper);padding:22px;border:1px solid #e6dfc7;border-radius:12px}.price-tabs{display:flex;background:#eeeade;border-radius:7px;padding:4px;gap:5px}.price-tabs button{border:0;border-radius:5px;flex:1;font-size:10px;padding:11px 6px}.price-tabs button.is-active{background:var(--paper)}.price-content{padding:29px 13px 25px}.price-content h3{font:400 27px var(--serif);margin-top:10px}.price-content>p{font-size:11px;margin-top:11px;color:var(--muted)}.price-placeholder{font:italic 23px var(--serif);margin-top:28px;color:#587590}.price-content>p.muted{font-size:10px;margin-top:6px}.first-free{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding:16px 13px 0;font-size:10px}.first-free strong{font-size:13px;font-weight:600}.first-free strong span{font-size:21px;margin-left:9px;color:#587590}.faq-section{display:grid;grid-template-columns:1fr 1.8fr;gap:80px}.faq-section h2{margin-block:20px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;font-size:12px;font-weight:600;padding:21px 0}summary::-webkit-details-marker{display:none}summary span{font-size:22px;font-weight:400;transition:transform .2s}details[open] summary span{transform:rotate(45deg)}details p{color:var(--muted);font-size:11px;line-height:1.9;padding-bottom:22px;max-width:560px}.closing{background:var(--blue);padding:49px 25px 44px;text-align:center;border-radius:13px;position:relative}.closing .eyebrow{margin:auto;font-size:9px}.closing h2{font-size:48px;margin:18px 0 25px}.closing h2 em{color:var(--ink)}.closing-spark{position:absolute;font-size:100px;line-height:1;top:-40px;left:55px;font-family:var(--serif);color:#f5d778;transform:rotate(-12deg);text-shadow:1px 0 var(--ink),-1px 0 var(--ink),0 1px var(--ink),0 -1px var(--ink)}.closing>.button{font-size:11px;padding:14px 20px}.footer{display:grid;grid-template-columns:1fr 1.2fr auto;align-items:center;gap:30px;padding-block:50px 25px;margin-top:20px}.footer-brand{font-size:20px}.footer p{font-size:10px;color:var(--muted)}.footer .text-button{justify-self:end}.footer-year{grid-column:1/-1;border-top:1px solid var(--line);padding-top:19px;font-size:9px;color:var(--muted);margin-top:15px}.skip{position:fixed;top:10px;left:10px;transform:translateY(-200%);background:var(--ink);color:white;padding:10px;z-index:99}.skip:focus{transform:none}[hidden]{display:none!important}dialog{border:1px solid #d7d9d4;background:var(--paper);color:var(--ink);padding:0;border-radius:15px;width:calc(100% - 32px);max-height:90dvh;box-shadow:0 25px 100px #1e354b30}dialog::backdrop{background:#182e4666;backdrop-filter:blur(6px)}.quiz-dialog{max-width:760px}.info-dialog{max-width:570px;padding:45px 38px 35px}.dialog-header{display:flex;align-items:center;justify-content:space-between;padding:19px 26px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--paper);z-index:2}.dialog-brand{font-size:13px;font-weight:600;letter-spacing:-.04em}.dialog-brand i{font-size:18px;color:#6a96be;margin-left:7px}.icon-button{width:32px;height:32px;border:1px solid var(--line);border-radius:50%;font:24px/1 var(--sans);background:transparent;display:grid;place-items:center;padding:0}.dialog-x{position:absolute;right:18px;top:18px}#quiz-body{padding:30px 38px}.quiz-meta{font-size:9px;letter-spacing:.07em;text-transform:uppercase;margin-top:7px;color:var(--muted)}.quiz-question h2{font-family:var(--sans);font-size:25px;line-height:1.45;font-weight:500;letter-spacing:-.04em;margin:22px 0}.quiz-progress{height:4px;border-radius:4px;background:#e0e3df;margin-top:20px;overflow:hidden}.quiz-progress i{height:100%;display:block;background:var(--blue-deep);transition:width .3s}.answer-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}.answer-option{display:flex;align-items:center;gap:12px;text-align:left;padding:17px;border-radius:8px;background:transparent;border:1px solid var(--line);font-size:15px}.answer-option i{display:grid;place-items:center;flex-shrink:0;border:1px solid var(--line);height:25px;width:25px;border-radius:50%;font-size:10px;font-style:normal}.answer-option.selected{background:#e1ebf4;border-color:#6387a7}.quiz-controls{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-top:24px;flex-wrap:wrap}.quiz-controls .button{font-size:11px;padding:13px 17px}.quiz-controls .text-button{font-size:10px}.quiz-footnote{font-size:10px;line-height:1.8;color:var(--muted);margin-top:20px}.quiz-result h2,.info-dialog h2{font-size:35px;margin-top:16px;line-height:1.25}.result-tag{display:inline-flex;padding:5px 11px;border-radius:4px;font-size:9px;background:var(--butter)}.result-level{background:#dfebf5;border-radius:9px;padding:22px;margin-top:24px}.result-level h3{font:500 25px var(--serif);margin-top:9px}.result-level p{font-size:12px;margin-top:10px}.quiz-result>p{font-size:12px;margin-top:15px;line-height:1.9}.result-topics{margin-top:23px;border-top:1px solid var(--line)}.result-topics summary{padding:17px 0}.result-topics>p{font-size:11px;color:var(--muted);padding:0 0 16px}.topic-row{display:flex;align-items:flex-start;gap:12px;margin-bottom:10px;background:white;padding:12px;border-radius:7px;font-size:12px;cursor:pointer}.topic-row input{accent-color:var(--ink);width:17px;height:17px;margin:2px 0 0;flex-shrink:0}.topic-row small{display:block;font-size:9px;color:var(--muted);margin-top:2px}.result-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}.result-actions .button{font-size:10px;padding:13px 15px;gap:15px}.result-actions .button-outline{background:transparent}.result-actions .button-outline:hover{background:var(--ink)}.result-reset{font-size:10px;margin-top:16px}.info-dialog .eyebrow{margin-top:10px}.info-dialog p:not(.eyebrow){font-size:12px;color:var(--muted);margin-top:18px;line-height:1.9}.info-dialog ul{padding-left:19px;font-size:12px;line-height:2.1;margin-block:20px}.info-dialog .button{margin-top:24px;font-size:11px;padding:14px 18px}.contact-placeholder{border:1px dashed #95a9b9;background:#eaf0f4;border-radius:8px;padding:18px;margin-top:23px}.contact-placeholder strong{font-size:13px}.contact-placeholder p{font-size:11px!important;margin-top:6px!important}.toast{position:fixed;z-index:20;left:50%;bottom:22px;transform:translate(-50%,20px);opacity:0;pointer-events:none;background:var(--ink);color:var(--paper);padding:13px 20px;border-radius:8px;font-size:12px;width:max-content;max-width:calc(100% - 30px);text-align:center;transition:opacity .2s,transform .2s}.toast.visible{opacity:1;transform:translate(-50%,0)}body.modal-open{overflow:hidden}.error-note{background:#fff2b2;border-radius:8px;padding:14px;font-size:12px;margin:15px 0}
@media(min-width:1600px){.hero h1{font-size:73px}.hero{padding-top:75px;padding-bottom:90px}}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.header{gap:20px}.header nav{gap:17px;font-size:10px}.header-cta{font-size:10px;padding:11px}.brand{font-size:20px}.brand-caption{font-size:8px}.hero h1{font-size:53px}.hero-actions{gap:16px;flex-wrap:wrap}.hero-art{margin-left:0}.art-formula{bottom:17%}.hero{padding-top:35px;gap:0}.diagnostic-layout,.prices-layout{gap:55px}.approach-layout{gap:45px}.diagnostic-doodle{display:none}.subject-card{padding-inline:21px}.subject-card p{min-height:84px}.subject-card h3{font-size:26px}.card-link{font-size:9px}.strip-inner{font-size:9px;gap:13px}.strip-inner span{gap:7px}.hero-note{font-size:11px}.diagnostic-card{padding:25px}.faq-section{gap:45px}.hero-description{max-width:380px}.hero .eyebrow{font-size:9px}}
@media(max-width:800px){.wrap{width:calc(100% - 44px)}.header{min-height:95px}.header nav{display:none;position:absolute;top:89px;left:22px;right:22px;padding:15px 22px;border:1px solid var(--line);background:var(--paper);z-index:10;border-radius:10px;box-shadow:0 15px 30px #293e5310}.header nav.is-open{display:grid;gap:4px}.header nav a{font-size:13px}.header-cta{margin-left:auto}.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:6px;width:33px;height:35px;background:none;order:3;flex-shrink:0}.menu-toggle span{height:1.5px;width:22px;background:var(--ink)}.hero{grid-template-columns:1fr 1fr;padding-block:35px 50px}.hero h1{font-size:44px}.hero-description{font-size:12px;max-width:320px}.hero-art{margin-right:0}.art-caption{top:10%;font-size:10px}.hero-art img{width:123%;margin-left:-8%}.art-formula{font-size:13px;bottom:15%;left:13%}.art-shape{height:65%;top:20%}.hero-actions{gap:12px}.hero-actions .button{padding:14px 17px;gap:20px;font-size:11px}.hero-note{font-size:10px;margin-top:19px}.hero .eyebrow{font-size:8px}.hero-note svg{width:25px}.strip-inner{display:grid;grid-template-columns:1fr 1fr;font-size:10px;row-gap:10px}.strip-inner i{font-size:19px}.section{padding-block:65px}.section-heading{gap:30px}.section-intro{max-width:260px;font-size:12px}h2{font-size:38px}.section-heading .eyebrow{font-size:8px}.subject-grid{gap:12px}.subject-card{padding:18px 15px 13px}.subject-art{height:130px}.subject-card h3{font-size:23px}.subject-card p{font-size:10px;min-height:90px}.card-link{font-size:8px;gap:7px;margin-top:10px}.tag{font-size:8px;padding:4px 8px}.subject-art svg{height:115px}.arithmetic{font-size:57px;gap:8px}.arithmetic span:nth-child(2){font-size:25px}.arithmetic svg{height:40px}.algebra>span:first-child{font-size:78px;top:16px}.algebra>span:nth-child(2){font-size:64px}.geometry span{font-size:25px}.diagnostic-layout{gap:32px;grid-template-columns:.9fr 1fr}.diagnostic-section{padding-block:60px}.diagnostic-card{padding:20px}.diagnostic-card h3{font-size:19px}.quiz-step{font-size:8px;flex-wrap:wrap}.grade-buttons{gap:4px}.grade-buttons button{height:35px;font-size:12px}.level-heading h3{font-size:16px}.level-buttons button{padding:9px 11px}.diagnostic-copy>p:not(.eyebrow){font-size:12px}.diagnostic-points{font-size:10px}.diagnostic-copy .eyebrow{font-size:8px}.diagnostic-copy .quiet-note{font-size:11px!important}.quiz-launch{font-size:11px;padding:14px 16px}.approach-layout{gap:30px;grid-template-columns:1fr 1fr}.approach-list h3{font-size:15px}.approach-list p{font-size:11px}.angle-playground{padding:18px}.angle-playground h3{font-size:22px}.angle-svg{height:160px}.angle-bottom{align-items:flex-start;flex-direction:column;gap:5px}.prices-layout{gap:35px}.price-content{padding:24px 5px}.price-content h3{font-size:24px}.price-placeholder{font-size:19px}.faq-section{grid-template-columns:1fr 1.6fr;gap:35px}.faq-list summary{font-size:11px}.footer{grid-template-columns:1fr 1fr;gap:25px}.footer .text-button{justify-self:start}.footer-year{grid-column:1/-1}.closing-spark{font-size:75px;left:25px;top:-28px}.closing h2{font-size:41px}.first-free{padding-inline:5px;gap:10px}.under-cards{font-size:10px}}
@media(max-width:600px){.wrap{width:calc(100% - 36px)}.header{min-height:90px;gap:15px}.brand{font-size:18px;gap:9px}.brand-mark{transform:scale(.8);transform-origin:left center;width:35px}.brand-caption{font-size:7px;letter-spacing:0}.header-cta{display:none}.menu-toggle{margin-left:auto}.hero{display:flex;flex-direction:column;align-items:stretch;padding-block:28px 35px}.hero h1{font-size:clamp(40px,9.8vw,59px);line-height:1.12;margin-top:23px;white-space:normal;letter-spacing:-.06em}.hero .eyebrow{font-size:8px}.hero-description{font-size:12px;line-height:1.9;max-width:400px;margin-top:30px}.hero-actions{gap:16px;margin-top:23px;flex-wrap:wrap}.hero-actions .button{font-size:11px;padding:15px 18px;gap:20px}.hero-actions .text-button{font-size:10px}.hero-note{font-size:11px;gap:8px;margin-top:18px}.hero-art{margin:29px 10px 0;min-height:260px;align-self:center;width:95%;max-width:480px;aspect-ratio:1.5}.hero-art img{width:109%;margin-left:-4%}.art-shape{height:92%;top:4%;width:95%;right:0}.art-caption{top:-4px;right:7%;font-size:10px}.art-formula{bottom:2%;left:10%;font-size:13px}.art-dot{bottom:5%;width:6px;height:6px}.strip-inner{grid-template-columns:1fr 1fr;padding-block:17px;gap:10px 12px;font-size:8px}.strip-inner span{gap:7px}.strip-inner i{font-size:18px}.section{padding-block:58px}.section-heading{display:block;margin-bottom:25px}.section-heading .eyebrow{font-size:8px;margin-bottom:15px}.section-intro{margin-top:20px;font-size:12px;max-width:370px}h2{font-size:36px;line-height:1.16;letter-spacing:-.055em}.filter-tabs{gap:5px;flex-wrap:wrap;margin-bottom:19px}.filter-tabs button{font-size:9px;padding:8px 12px}.subject-grid{grid-template-columns:1fr;gap:14px}.subject-card{display:grid;grid-template-columns:1fr 1fr;padding:22px 23px 17px;gap:0 5px;border-radius:11px}.card-top{grid-column:1/-1}.subject-art{grid-column:2;grid-row:2/5;height:150px;align-self:center;margin-right:-5px}.subject-card h3{grid-column:1;font-size:27px;margin-top:23px}.subject-card p{grid-column:1;font-size:10px;min-height:80px;line-height:1.9;margin-top:5px}.card-link{grid-column:1/-1;font-size:10px;padding-top:12px;margin-top:11px}.card-number{font-size:10px}.subject-art svg{height:118px}.arithmetic{font-size:58px;gap:7px}.arithmetic span:nth-child(2){font-size:23px}.arithmetic svg{height:40px}.algebra>span:first-child{font-size:85px;left:0;top:12px}.algebra>span:nth-child(2){font-size:65px;right:2%}.geometry svg{width:110%;max-width:180px}.geometry span{right:5%;bottom:27px}.under-cards{font-size:10px;line-height:1.9;margin-top:20px}.under-cards a{display:inline;margin-left:0}.diagnostic-layout{grid-template-columns:1fr;gap:30px}.diagnostic-section{padding-block:53px}.diagnostic-copy .eyebrow{font-size:8px}.diagnostic-copy h2{margin-top:16px}.diagnostic-copy>p:not(.eyebrow){max-width:370px;margin-top:20px;font-size:12px}.diagnostic-points{gap:10px;margin-top:23px;font-size:11px}.diagnostic-copy .quiet-note{font-size:12px!important;margin-top:20px!important}.diagnostic-card{padding:23px}.diagnostic-card h3{font-size:22px}.quiz-step{font-size:9px;flex-wrap:nowrap}.grade-buttons{gap:6px}.grade-buttons button{height:40px;font-size:13px}.level-heading{margin-top:23px}.level-heading h3{font-size:18px}.level-buttons{gap:7px}.level-buttons button{padding:11px 13px}.level-buttons button span{font-size:12px}.quiz-launch{padding:15px 18px;font-size:12px}.approach-layout{grid-template-columns:1fr;gap:26px;margin-top:30px}.approach-list article{padding-block:20px}.approach-list h3{font-size:16px}.approach-list p{font-size:11px;line-height:1.9}.angle-playground{padding:22px}.angle-playground h3{font-size:27px}.angle-svg{height:190px}.angle-bottom{flex-direction:row;align-items:center;font-size:9px;gap:20px}.angle-playground label{font-size:10px}.prices-section{padding-block:50px}.prices-layout{grid-template-columns:1fr;gap:30px}.prices-layout h2{margin-top:15px}.prices-layout .eyebrow{font-size:8px}.prices-layout .section-intro{margin-top:20px}.prices-layout>div>.button{margin-top:22px}.price-card{padding:20px}.price-content{padding:27px 7px 24px}.price-content h3{font-size:26px}.price-placeholder{font-size:22px}.faq-section{grid-template-columns:1fr;gap:25px}.faq-section h2{margin-block:15px}.faq-section>.muted{font-size:11px}.faq-list summary{font-size:11px;padding:19px 0}.closing{padding:42px 20px 36px;margin-top:10px}.closing .eyebrow{font-size:7px;max-width:220px}.closing h2{font-size:34px;line-height:1.25;margin:17px 0 23px}.closing-spark{font-size:60px;top:-24px;left:13px}.closing>.button{font-size:10px;padding:13px 15px;gap:20px}.footer{padding-block:34px 22px;gap:23px 15px;margin-top:6px}.footer-brand{font-size:18px}.footer p{font-size:8px;line-height:1.9}.footer .text-button{font-size:10px}.footer-year{margin-top:0;font-size:8px}.info-dialog{padding:42px 25px 29px}#quiz-body{padding:24px}.dialog-header{padding:15px 20px}.quiz-question h2{font-size:22px;line-height:1.5;margin-top:22px}.answer-options{grid-template-columns:1fr}.answer-option{padding:13px 15px;font-size:14px}.quiz-controls .button{font-size:10px;padding:12px 14px;gap:12px}.quiz-controls .text-button{font-size:9px}.quiz-result h2,.info-dialog h2{font-size:30px}.result-level{padding:18px}.result-level h3{font-size:23px}.result-actions{gap:8px}.result-actions .button{font-size:9px;padding:12px}.quiz-footnote{font-size:9px}.topic-row{font-size:11px}.toast{font-size:11px}.quiz-result>p{font-size:11px}.info-dialog ul{font-size:11px}}
.hero-art img{width:100%;max-width:100%;margin-left:0}.hero-art{margin-right:0;overflow:clip}.hero-description,.section-intro,.diagnostic-copy>p:not(.eyebrow){font-size:14px}.subject-card p,.approach-list p{font-size:13px}.subject-card p{min-height:94px}.card-link{font-size:11px}.faq-list summary{font-size:14px}.faq-list details p{font-size:13px}.diagnostic-points{font-size:13px}.level-buttons button span{font-size:13px}.level-buttons button small{font-size:11px}.demo-note{font-size:11px}.quiz-footnote{font-size:11px}.price-content>p{font-size:13px}.price-content>p.muted{font-size:11px}.under-cards{font-size:12px}.strip-inner{font-size:11px}.quiz-step{font-size:10px}.demo-tag{font-size:9px}.topic-row{font-size:13px}.topic-row small{font-size:11px}.quiz-result>p,.result-level p{font-size:13px}.result-topics>p{font-size:12px}.answer-option{min-height:58px}
@media(max-width:800px){.hero-description,.section-intro,.diagnostic-copy>p:not(.eyebrow){font-size:13px}.subject-card p{font-size:12px;min-height:110px}.card-link{font-size:10px}.strip-inner{font-size:10px}.diagnostic-points{font-size:12px}.level-buttons button small{font-size:10px}.faq-list summary{font-size:13px}}
@media(max-width:600px){.subject-card p{font-size:12px;min-height:85px}.hero-art img{width:100%;margin-left:0}.approach-list p{font-size:13px}.strip-inner{font-size:9px}.hero-description{font-size:13px}.hero-note{font-size:12px}.demo-note{font-size:11px}.faq-list summary{font-size:13px}.faq-list details p{font-size:13px}.subject-card h3{font-size:27px}.hero .eyebrow{font-size:9px}.brand-caption{font-size:8px}.quiz-meta{font-size:10px}.quiz-footnote{font-size:11px}.quiz-controls .text-button{font-size:11px}.quiz-controls .button{font-size:11px}.result-actions .button{font-size:11px}.result-level p,.quiz-result>p{font-size:12px}.topic-row{font-size:12px}.topic-row small{font-size:10px}.price-tabs button{font-size:11px}.footer p{font-size:10px}.footer-year{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.subject-card:hover,.button:hover{transform:none}}