@font-face{font-family:Manrope;font-style:normal;font-weight:200 800;font-display:swap;src:url('/assets/manrope-cyrillic-wght-normal.woff2') format('woff2');unicode-range:U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:Manrope;font-style:normal;font-weight:200 800;font-display:swap;src:url('/assets/manrope-latin-wght-normal.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
:root{--paper:#f7f8fa;--white:#fff;--ink:#161a22;--muted:#626a78;--blue:#3157f6;--blue-dark:#2344d1;--pale:#e9eeff;--line:#dbe0e9;--display:'Playfair Display',Georgia,serif;--body:Manrope,Arial,sans-serif;--radius:24px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:106px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{cursor:pointer;color:inherit}button:disabled{cursor:default}img{max-width:100%;display:block}h1,h2,h3,p,figure{margin:0}h1,h2{font-family:var(--display);font-weight:500;letter-spacing:-.045em;line-height:1.12}h2{font-size:clamp(40px,4.25vw,62px)}h2 em,h1 em{font-weight:500;color:var(--blue)}h3{font-weight:650;line-height:1.3}p{color:var(--muted)}[hidden]{display:none!important}::selection{background:#c7d3ff;color:var(--ink)}:focus-visible{outline:3px solid var(--blue);outline-offset:5px}.container{max-width:1340px;margin-inline:auto;padding-inline:48px}.section{padding-top:128px;padding-bottom:128px}.eyebrow{font-size:12px;font-weight:650;letter-spacing:.075em;line-height:1.6;color:var(--muted)}.section-index{margin-bottom:22px;letter-spacing:.1em}.button{display:inline-flex;justify-content:center;align-items:center;gap:24px;min-height:58px;padding:16px 27px;background:var(--blue);color:white;border:1px solid transparent;border-radius:99px;font-size:14px;font-weight:650;line-height:1.3;transition:background .2s,transform .2s,box-shadow .2s}.button:hover{background:var(--blue-dark);transform:translateY(-2px)}.button:active{transform:translateY(0)}.button:disabled{background:#e4e7ed;color:#787f8d;transform:none}.button-small{min-height:47px;padding:12px 23px;font-size:13px}.arrow{font-size:23px;line-height:1}.text-link{display:inline-flex;align-items:center;gap:16px;font-size:14px;font-weight:650;text-decoration:underline;text-underline-offset:5px;text-decoration-color:transparent;transition:color .2s,text-decoration-color .2s}.text-link:hover{color:var(--blue);text-decoration-color:var(--blue)}.round-action{border:1px solid #c4cbd8;border-radius:50%;display:grid;place-items:center;background:transparent;width:52px;height:52px;font-size:27px;line-height:1;transition:background .2s,color .2s,transform .2s}.round-action:hover{background:var(--blue);color:white;border-color:var(--blue);transform:rotate(6deg)}.skip-link{position:fixed;left:20px;top:-100px;z-index:100;padding:14px;background:var(--ink);color:#fff}.skip-link:focus{top:20px}
.header{height:100px;position:relative;z-index:20}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}.brand img{width:44px;height:44px}.brand span{font-size:14px;line-height:1.3;font-weight:500}.brand strong{font-size:17px;font-weight:700}.desktop-nav{display:flex;align-items:center;gap:36px;font-size:13px;font-weight:550}.desktop-nav a{padding:12px 0;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}.desktop-nav a:hover{color:var(--blue);border-color:var(--blue)}.menu-button,.mobile-nav{display:none}
.hero{padding-top:58px;padding-bottom:90px;display:grid;grid-template-columns:1.3fr 1fr;gap:38px;align-items:center;min-height:730px}.blue-dot{display:inline-block;width:7px;height:7px;background:var(--blue);border-radius:50%;margin-right:9px}.hero-copy{position:relative;z-index:3}.hero h1{font-size:clamp(64px,6.05vw,87px);line-height:1.07;letter-spacing:-.05em;margin-top:26px;margin-bottom:26px}.hero h1 em{position:relative}.hero h1 em::after{content:'';position:absolute;height:9px;width:98%;bottom:-8px;left:2%;border-radius:50%;border-top:2px solid #9bb0fd;transform:rotate(-2deg)}.hero-description{max-width:420px;font-size:17px;line-height:1.8}.hero-actions{display:flex;align-items:center;gap:28px;margin-top:32px}.hero-note{font-size:12px;line-height:1.65;margin-top:17px}.hero-visual{position:relative;min-width:0;max-width:475px;width:100%;height:530px;justify-self:end;isolation:isolate}.portrait-frame{width:calc(100% - 22px);height:100%;margin-left:22px;overflow:hidden;border-radius:230px 230px 28px 28px;position:relative;background:#e8e9e9}.hero-portrait{height:100%;width:100%;object-fit:cover;object-position:56% 34%;transition:transform .7s}.hero-visual:hover .hero-portrait{transform:scale(1.025)}.portrait-caption{position:absolute;bottom:23px;right:24px;left:24px;background:#fffffff2;padding:15px 19px;border-radius:16px;display:flex;flex-direction:column;backdrop-filter:blur(10px)}.portrait-caption span{font-size:11px;color:var(--muted);margin-bottom:2px}.portrait-caption strong{font-size:18px;font-weight:600}.portrait-orbit{position:absolute;z-index:-1;inset:-23px 8px 9px -1px;border:1px solid #b0bff9;border-radius:240px 240px 40px 40px;transform:rotate(-5deg)}.math-note{position:absolute;bottom:125px;left:-45px;background:white;border:1px solid #e1e6f3;padding:18px 22px;border-radius:16px;box-shadow:0 12px 36px #0d21480c;transform:rotate(-5deg);width:235px}.mini-label{display:block;font-size:10px;letter-spacing:.07em;color:var(--muted)}.note-equation{display:block;font-family:var(--display);font-size:23px;letter-spacing:-.02em;margin-top:5px;white-space:nowrap}.note-roots{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--blue);margin-top:11px}.note-roots a{margin-left:auto;border-radius:50%;background:var(--pale);width:29px;height:29px;display:grid;place-items:center;font-size:19px}.portrait-side-note{position:absolute;right:7px;top:33px;writing-mode:vertical-rl;transform:translateX(100%);font-size:10px;letter-spacing:.08em;color:var(--muted)}
.credentials{display:grid;grid-template-columns:1.04fr 1fr 1fr 1.16fr;gap:36px;align-items:center;padding-top:27px;padding-bottom:30px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.credentials>p{font-size:14px;line-height:1.5}.credentials p strong{font-weight:600;color:var(--ink)}.credentials div strong{display:block;font-size:20px;font-weight:600;letter-spacing:-.04em;margin-bottom:4px}.credentials div span{display:block;font-size:11px;color:var(--muted);line-height:1.5}
.section-heading{display:flex;justify-content:space-between;gap:50px;align-items:end;margin-bottom:50px}.section-heading>p{font-size:14px;line-height:1.8;max-width:350px;padding-bottom:6px}.goal-row{display:grid;grid-template-columns:32px 1.2fr 1.3fr 140px 52px;align-items:center;gap:30px;min-height:136px;border-top:1px solid var(--line);transition:background .2s;padding:27px 0}.goal-row:last-child{border-bottom:1px solid var(--line)}.goal-number{font-size:11px;align-self:start;padding-top:7px;color:var(--muted)}.goal-name h3{font-size:23px;letter-spacing:-.045em}.goal-name>span{display:block;margin-top:6px;font-size:12px;color:var(--muted)}.goal-row>p{font-size:13px;line-height:1.8}.goal-price strong{font-size:24px;letter-spacing:-.04em;font-weight:550;white-space:nowrap}.goal-price span{display:block;font-size:11px;margin-top:3px;color:var(--muted)}.goal-olympiad .goal-name h3{color:var(--blue)}.goal-row:hover .round-action{background:var(--blue);color:white;border-color:var(--blue)}.pricing-note{font-size:12px;margin-top:24px}
.about-section{background:var(--pale);padding:94px 0}.about-grid{display:grid;grid-template-columns:1fr 1.08fr;gap:90px;align-items:center}.about-photo{position:relative}.about-photo img{width:100%;aspect-ratio:1/1.09;object-fit:cover;object-position:50% 37%;border-radius:28px}.about-photo figcaption{font-size:11px;margin-top:12px;color:#525d79}.about-copy h2{font-size:clamp(38px,3.6vw,52px);margin-bottom:24px}.about-intro{font-size:15px;line-height:1.9;max-width:475px;color:#536079}.about-copy blockquote{font-family:var(--display);font-size:23px;line-height:1.6;letter-spacing:-.02em;margin:25px 0 0;padding:0;color:var(--ink)}.about-facts{display:flex;gap:62px;margin:28px 0}.about-facts strong{font-size:36px;letter-spacing:-.06em;font-weight:550;line-height:1.3;display:block;color:var(--blue)}.about-facts span{font-size:11px;color:#536079;display:block}.about-copy .text-link{font-size:13px}
.lesson-timeline{display:grid;grid-template-columns:1fr 1.1fr 1.35fr .9fr;gap:28px}.timeline-value{font-family:var(--display);font-size:66px;line-height:1.1;letter-spacing:-.06em;display:flex;align-items:baseline;gap:11px}.timeline-value span{font:11px var(--body);letter-spacing:0;color:var(--muted)}.timeline-line{height:4px;background:#d6dce8;margin:22px 0 22px;position:relative}.timeline-line::before{content:'';position:absolute;left:0;top:-3px;width:10px;height:10px;border-radius:50%;background:#b3bed3}.lesson-timeline h3{font-size:16px;margin-bottom:12px}.lesson-timeline p{font-size:13px;line-height:1.8;max-width:240px}.practice .timeline-value,.practice h3{color:var(--blue)}.practice .timeline-line,.practice .timeline-line::before{background:var(--blue)}.board-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:70px;align-items:center;margin-top:92px}.board-image-button{padding:0;border:1px solid var(--line);background:white;border-radius:20px;overflow:hidden;text-align:left;width:100%;transition:box-shadow .2s}.board-image-button:hover{box-shadow:0 10px 35px #16234e0c}.board-image-button img{aspect-ratio:1.6;object-fit:cover;object-position:center}.board-image-button>span{display:flex;align-items:center;justify-content:space-between;padding:17px 20px;font-size:11px;line-height:1.5;color:var(--muted);border-top:1px solid var(--line)}.board-image-button>span>span{font-size:22px;color:var(--blue)}.board-copy h3{font-family:var(--display);font-weight:500;font-size:38px;letter-spacing:-.04em;line-height:1.1;margin-bottom:20px}.board-copy p,.board-copy li{font-size:13px;line-height:1.9}.board-copy ul{list-style:none;padding:0;margin:22px 0 0;color:var(--muted)}.board-copy li{padding-left:20px;position:relative;margin-top:10px}.board-copy li::before{content:'↗';position:absolute;left:0;color:var(--blue)}
.math-section{padding-bottom:128px}.math-demo-inner{padding:64px;background:var(--ink);color:#f7f8fa;border-radius:28px}.math-demo-heading{display:grid;grid-template-columns:1.2fr .8fr;column-gap:50px;align-items:end;margin-bottom:42px}.math-demo-heading .eyebrow{grid-column:1/-1;color:#a1adc4}.math-demo-heading h2{font-size:50px}.math-demo-heading h2 em{color:#9db3ff}.math-demo-heading>p:last-child{font-size:13px;color:#bdc7da;padding-bottom:6px}.math-demo-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:64px;align-items:start}.math-steps{padding-top:16px}.math-steps button{display:flex;align-items:center;width:100%;gap:19px;padding:21px 0;border:0;border-bottom:1px solid #343c4d;background:none;color:#a7b1c3;text-align:left;font-size:13px;transition:color .2s}.math-steps button span{font-size:11px;opacity:.7}.math-steps button[aria-current='step']{color:white}.math-steps button[aria-current='step'] span{width:30px;height:30px;border:1px solid #9db3ff;border-radius:50%;display:grid;place-items:center;opacity:1;color:#9db3ff}.math-steps button:hover{color:#9db3ff}.math-canvas{background:#222938;border:1px solid #354056;border-radius:20px;padding:25px 25px 20px;min-width:0}.math-canvas-top{display:flex;justify-content:space-between;align-items:center;color:#aebbd3;font-size:10px;letter-spacing:.05em}.math-canvas-top button{background:none;border:0;color:#c8d3e8;font-size:11px;padding:4px 0}.math-equation{font-family:var(--display);font-size:30px;line-height:1.5;letter-spacing:-.03em;text-align:center;color:#fff;margin-top:16px;min-height:55px}.math-canvas svg{display:block;width:100%;height:auto;margin-block:6px}.math-explain{min-height:106px}.math-explain h3{font-size:15px;color:#e8edfa;margin-bottom:9px}.math-explain p{font-size:12px;line-height:1.8;color:#b4c2da}.math-controls{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:18px}.math-control{border:1px solid #657391;background:none;color:#e0e8f9;padding:11px 16px;min-height:44px;border-radius:30px;font-size:11px;font-weight:600;transition:background .2s}.math-control:disabled{color:#77839b;border-color:#43516a}.math-control-next{background:#9db3ff;color:#18203c;border-color:#9db3ff}.math-control:not(:disabled):hover{background:#445371}.math-control-next:not(:disabled):hover{background:#b8c7ff;color:#18203c}.math-section :focus-visible{outline-color:#9db3ff}
.contact-section{padding:94px 0;background:var(--blue);color:white}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:105px;align-items:start}.contact-copy{padding-top:19px}.contact-copy .eyebrow{color:#d5ddff}.contact-copy h2{font-size:clamp(54px,5.3vw,76px);line-height:1.08}.contact-copy h2 em{color:white}.contact-lead{margin:28px 0 16px;font-size:21px;line-height:1.5;color:white;font-weight:550}.contact-copy>p:not(.eyebrow):not(.contact-lead):not(.contact-caption){font-size:14px;line-height:1.85;max-width:360px;color:#e2e7ff}.contact-direct{display:inline-flex;align-items:center;justify-content:space-between;gap:20px;margin-top:38px;font-size:13px;padding-bottom:10px;border-bottom:1px solid #98acff}.contact-direct:hover{border-color:white}.contact-caption{font-size:11px;line-height:1.6;color:#d6dfff;margin-top:16px}.contact-wizard{background:white;color:var(--ink);border-radius:24px;padding:33px 35px;min-width:0}.wizard-head{display:flex;justify-content:space-between;font-size:10px;letter-spacing:.07em;color:var(--muted)}#wizard-progress{appearance:none;width:100%;height:3px;margin:18px 0 26px;border:none;border-radius:10px;background:#edf0f7}#wizard-progress::-webkit-progress-bar{background:#edf0f7}#wizard-progress::-webkit-progress-value{background:var(--blue);transition:width .2s}#wizard-progress::-moz-progress-bar{background:var(--blue)}#wizard-title{font-size:25px;line-height:1.3;font-weight:550;letter-spacing:-.04em;margin-bottom:12px}#wizard-title:focus{outline:none}.wizard-pane>p{font-size:12px;line-height:1.8}.grade-options{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:28px}.grade-options button{background:var(--paper);border:1px solid #e1e5ed;border-radius:14px;min-height:89px;font-size:25px;line-height:1.2;transition:background .2s,border-color .2s}.grade-options button span{display:block;font-size:10px;margin-top:8px;color:var(--muted)}.grade-options button.is-selected,.wizard-options button.is-selected{background:var(--pale);border-color:var(--blue);color:var(--blue)}.grade-options button:hover,.wizard-options button:hover{border-color:var(--blue)}.wizard-options{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:24px}.wizard-options button{display:flex;flex-direction:column;gap:7px;text-align:left;padding:16px 14px;background:var(--paper);border:1px solid #e1e5ed;border-radius:12px;min-height:100px;transition:border-color .2s,background .2s}.wizard-options strong{font-size:12px;line-height:1.5;font-weight:650}.wizard-options span{font-size:10px;line-height:1.5;color:var(--muted)}.difficulty-options{grid-template-columns:1fr}.difficulty-options button{min-height:76px}.wizard-controls{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-top:36px}.wizard-controls .button{margin-left:auto;min-height:50px;min-width:137px;font-size:12px;padding:15px 23px}.wizard-back{border:0;background:none;padding:12px 0;font-size:12px}.wizard-back:hover{color:var(--blue)}.wizard-footnote{font-size:10px;line-height:1.7;text-align:center;margin-top:22px}.message-label{font-size:10px;display:block;margin:15px 0 8px;color:var(--muted)}#message-preview{border:1px solid #d9dfec;background:var(--paper);border-radius:12px;resize:vertical;display:block;width:100%;padding:14px;min-height:170px;font-size:12px;line-height:1.8;color:#3d465a}.button-ghost{border-color:#cdd5e6;background:white;color:var(--blue);padding:12px 20px;min-height:44px;font-size:11px;width:100%;margin-top:13px}.button-ghost:hover{background:var(--pale);color:var(--blue)}.copy-status{font-size:10px;line-height:1.8;margin-top:10px;min-height:36px}.message-links{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:15px}.message-links .button{min-height:47px;padding:13px 20px;font-size:12px;gap:12px}.message-links .text-link{font-size:11px}.wizard-disclaimer{font-size:10px;line-height:1.8;margin-top:15px}#chosen-summary{color:var(--blue);font-weight:550}
.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:100px;padding-bottom:100px}.faq-list details{border-bottom:1px solid var(--line);padding:23px 0}.faq-list details:first-child{border-top:1px solid var(--line)}.faq-list summary{display:flex;align-items:center;justify-content:space-between;gap:20px;list-style:none;font-size:14px;font-weight:600;cursor:pointer}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary>span{font-size:23px;font-weight:400;color:var(--blue);flex-shrink:0;transition:transform .2s}.faq-list details[open] summary>span{transform:rotate(45deg)}.faq-list p{font-size:13px;line-height:1.9;margin-top:18px;max-width:550px}.footer{display:grid;grid-template-columns:1fr 1fr auto;gap:35px;align-items:center;padding-top:40px;padding-bottom:35px;border-top:1px solid var(--line)}.footer>p{font-size:12px}.footer>div{display:flex;gap:30px;font-size:12px}.footer a:hover{color:var(--blue)}.copyright{grid-column:1/-1;font-size:10px;color:var(--muted);margin-top:15px}.mobile-contact{display:none}.board-dialog{border:0;border-radius:20px;max-width:1080px;width:calc(100% - 48px);padding:25px;background:var(--paper);color:var(--ink)}.board-dialog::backdrop{background:#0b143ccc;backdrop-filter:blur(6px)}.dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:25px}.dialog-heading h2{font:600 18px var(--body);letter-spacing:-.03em}.dialog-heading .round-action{width:44px;height:44px;flex-shrink:0}.board-dialog>img{width:100%;max-height:70vh;object-fit:contain;border-radius:10px;background:white}.board-dialog>p{font-size:12px;margin-top:16px}
@media(min-width:1600px){.hero h1{font-size:92px}.hero{padding-top:75px;padding-bottom:105px}}
@media(max-width:1180px){.container{padding-inline:36px}.hero{grid-template-columns:1.2fr 1fr;gap:30px;min-height:675px;padding-top:48px}.hero h1{font-size:clamp(57px,6.1vw,72px)}.hero-visual{height:485px}.hero-description{font-size:15px;max-width:350px}.hero-actions{gap:18px;flex-wrap:wrap}.hero-actions .button{font-size:12px;gap:20px;padding:17px 20px}.hero-actions .text-link{font-size:12px}.math-note{left:-25px;width:210px;padding:15px 19px}.note-equation{font-size:21px}.portrait-side-note{display:none}.credentials{gap:24px}.credentials div strong{font-size:17px}.goal-row{grid-template-columns:24px 1.05fr 1.1fr 120px 48px;gap:20px}.goal-name h3{font-size:21px}.goal-row>p{font-size:12px}.goal-price strong{font-size:22px}.about-grid{gap:55px}.about-copy h2{font-size:40px}.about-copy blockquote{font-size:20px}.math-demo-inner{padding:48px}.math-demo-grid{gap:35px}.math-demo-heading h2{font-size:43px}.contact-grid{gap:60px}.contact-wizard{padding:30px 26px}.faq{gap:60px}}
@media(max-width:900px){.desktop-nav{gap:22px;font-size:12px}.header-cta{font-size:11px;padding:12px 18px;gap:13px}.container{padding-inline:28px}.hero{gap:20px;min-height:600px;padding-top:40px;padding-bottom:70px}.hero h1{font-size:clamp(47px,6.15vw,58px)}.hero-visual{height:440px}.hero-description{font-size:14px}.hero h1{margin-top:21px;margin-bottom:23px}.hero-actions{margin-top:24px}.hero-actions .text-link{padding-block:8px}.hero-note{font-size:10px}.portrait-caption{right:16px;left:16px;bottom:18px;padding:12px 14px}.portrait-caption strong{font-size:15px}.math-note{bottom:112px;width:183px;left:-12px}.note-equation{font-size:18px}.note-roots{font-size:11px}.mini-label{font-size:9px}.section{padding-top:94px;padding-bottom:94px}h2{font-size:44px}.section-heading{gap:30px}.section-heading>p{font-size:12px}.goal-row{grid-template-columns:24px 1.3fr 1fr 48px;gap:18px}.goal-row>p{grid-column:2;grid-row:auto}.goal-price{grid-column:3;grid-row:1/span 2;align-self:center}.round-action{grid-column:4;grid-row:1/span 2}.goal-row{min-height:120px;padding:25px 0;row-gap:8px}.goal-number{grid-row:1/span 2}.goal-name h3{font-size:21px}.about-grid{gap:38px}.about-copy h2{font-size:35px}.about-intro{font-size:13px}.about-facts{gap:28px}.about-facts strong{font-size:29px}.about-copy blockquote{font-size:19px}.about-section{padding:75px 0}.timeline-value{font-size:57px}.lesson-timeline{gap:20px}.lesson-timeline h3{font-size:14px}.lesson-timeline p{font-size:12px}.board-grid{gap:40px}.board-copy h3{font-size:32px}.board-copy p,.board-copy li{font-size:12px}.math-demo-inner{padding:35px}.math-demo-heading{gap:26px;grid-template-columns:1.1fr 1fr}.math-demo-heading h2{font-size:36px}.math-demo-heading>p:last-child{font-size:11px}.math-demo-grid{grid-template-columns:.8fr 1.2fr;gap:25px}.math-steps button{font-size:11px;gap:12px}.math-canvas{padding:20px 18px}.math-equation{font-size:26px}.math-explain{min-height:129px}.math-control{font-size:10px;padding:11px 13px}.math-section{padding-bottom:94px}.contact-grid{gap:38px}.contact-copy h2{font-size:55px}.contact-lead{font-size:18px}.contact-copy>p:not(.eyebrow):not(.contact-lead):not(.contact-caption){font-size:12px}.contact-wizard{padding:26px 22px}#wizard-title{font-size:22px}.grade-options{gap:7px}.grade-options button{min-height:77px;font-size:21px}.wizard-options{grid-template-columns:1fr}.wizard-options button{min-height:72px}.faq{grid-template-columns:.65fr 1.35fr;gap:40px}.faq-list summary{font-size:13px}.footer{gap:25px}.footer>div{gap:20px}}
@media(max-width:680px){html{scroll-padding-top:28px}.container{padding-inline:22px}.header{height:82px}.brand{gap:9px}.brand img{height:37px;width:37px}.brand span{font-size:12px}.brand strong{font-size:15px}.desktop-nav,.header-cta{display:none}.menu-button{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:6px;width:46px;height:46px;padding:12px;background:none;border:1px solid var(--line);border-radius:50%}.menu-button span{width:18px;height:1px;background:var(--ink);transition:transform .2s}.menu-button[aria-expanded='true'] span:first-child{transform:translateY(3.5px) rotate(45deg)}.menu-button[aria-expanded='true'] span:last-child{transform:translateY(-3.5px) rotate(-45deg)}.mobile-nav{display:flex;position:absolute;top:75px;left:16px;right:16px;border:1px solid var(--line);background:var(--paper);padding:18px 24px;flex-direction:column;border-radius:20px;box-shadow:0 15px 40px #14234b16}.mobile-nav a{font-size:14px;padding:14px 0}.mobile-nav a:last-child{color:var(--blue)}.hero{display:flex;flex-direction:column;align-items:stretch;gap:46px;padding-top:27px;padding-bottom:60px;min-height:0}.hero-copy{width:100%}.hero .eyebrow{font-size:10px;letter-spacing:.035em}.blue-dot{margin-right:6px}.hero h1{font-size:clamp(43px,11.5vw,70px);line-height:1.1;letter-spacing:-.05em;margin-top:23px;margin-bottom:27px}.hero h1 em::after{bottom:-7px;width:96%}.hero-description{font-size:14px;line-height:1.85;max-width:100%}.hero-actions{align-items:stretch;flex-direction:column;gap:11px;margin-top:27px}.hero-actions .button{font-size:13px;min-height:56px;justify-content:space-between;padding-inline:22px}.hero-actions .text-link{font-size:12px;justify-content:center;padding:10px}.hero-note{font-size:11px;line-height:1.6;margin-top:10px;text-align:center}.hero-note br{display:none}.hero-visual{width:calc(100% - 10px);max-width:390px;align-self:center;height:445px;justify-self:auto}.portrait-frame{margin-left:11px;width:calc(100% - 11px);border-radius:200px 200px 23px 23px}.portrait-orbit{inset:-12px 6px 2px 0}.hero-portrait{object-position:56% 32%}.math-note{left:-4px;bottom:109px;transform:rotate(-5deg);width:198px;padding:14px 17px}.note-equation{font-size:20px}.portrait-caption strong{font-size:17px}.credentials{grid-template-columns:1fr 1fr;gap:24px 22px;padding-top:26px;padding-bottom:29px;margin-inline:22px;padding-inline:0}.credentials>p{font-size:13px}.credentials div strong{font-size:15px}.credentials div span{font-size:10px}.section{padding-top:77px;padding-bottom:77px}.section-index{font-size:10px;letter-spacing:.08em;margin-bottom:20px}h2{font-size:clamp(37px,10vw,47px);line-height:1.14}.section-heading{flex-direction:column;align-items:start;gap:21px;margin-bottom:35px}.section-heading>p{font-size:13px;line-height:1.8;max-width:100%;padding:0}.section-heading>p br{display:none}.goal-row{grid-template-columns:17px 1fr 45px;column-gap:15px;row-gap:7px;padding:24px 0}.goal-number{font-size:10px;padding-top:4px;grid-row:1/span 3}.goal-name h3{font-size:20px}.goal-name>span{font-size:10px;margin-top:5px}.goal-row>p{font-size:11px;line-height:1.7;grid-column:2;grid-row:2}.goal-price{grid-column:2;grid-row:3;display:flex;align-items:baseline;gap:12px;margin-top:5px}.goal-price strong{font-size:19px}.goal-price span{font-size:10px}.goal-row .round-action{grid-column:3;grid-row:1/span 3;width:45px;height:45px;font-size:24px}.pricing-note{font-size:11px;line-height:1.8;margin-top:20px}.about-section{padding:65px 0}.about-grid{display:flex;flex-direction:column;gap:36px}.about-photo{max-width:440px;width:100%;order:2}.about-photo img{aspect-ratio:1.08;object-position:50% 35%;border-radius:20px}.about-copy{order:1}.about-copy h2{font-size:36px;margin-bottom:22px}.about-intro{font-size:13px;line-height:1.85}.about-copy blockquote{font-size:21px;margin-top:23px;line-height:1.55}.about-facts{margin-block:27px;gap:55px}.about-facts strong{font-size:32px}.about-facts span{font-size:10px}.about-photo figcaption{font-size:10px}.lesson-timeline{grid-template-columns:1fr 1fr;gap:30px 25px}.timeline-value{font-size:54px;gap:9px}.timeline-value span{font-size:10px}.timeline-line{margin-block:17px}.lesson-timeline h3{font-size:14px;line-height:1.5;max-width:160px;margin-bottom:9px}.lesson-timeline p{font-size:11px;line-height:1.85;max-width:170px}.board-grid{display:flex;flex-direction:column;gap:24px;margin-top:56px;align-items:stretch}.board-copy{order:1}.board-figure{order:2}.board-copy h3{font-size:33px;line-height:1.2}.board-copy h3 br{display:none}.board-copy p,.board-copy li{font-size:12px}.board-copy ul{margin-top:15px}.board-image-button{border-radius:15px}.board-image-button>span{padding:12px 14px;font-size:10px}.math-section{padding-inline:14px;padding-bottom:76px}.math-demo-inner{padding:31px 21px;border-radius:20px}.math-demo-heading{display:block;margin-bottom:24px}.math-demo-heading .eyebrow{margin-bottom:19px}.math-demo-heading h2{font-size:35px;line-height:1.17}.math-demo-heading>p:last-child{font-size:12px;margin-top:20px;line-height:1.8}.math-demo-heading>p:last-child br{display:none}.math-demo-grid{display:flex;flex-direction:column;gap:24px}.math-steps{padding:0;display:grid;grid-template-columns:1fr 1fr;gap:0 15px;width:100%}.math-steps button{font-size:10px;padding:12px 0;gap:8px;min-height:53px}.math-steps button span{font-size:10px;flex-shrink:0}.math-steps button[aria-current='step'] span{width:24px;height:24px}.math-canvas{width:100%;padding:18px 15px 17px;border-radius:15px}.math-equation{font-size:26px;min-height:47px;margin-top:14px}.math-explain{min-height:100px}.math-explain h3{font-size:14px}.math-explain p{font-size:11px}.math-canvas svg{margin-block:6px}.math-controls{gap:12px;margin-top:14px}.math-control{font-size:10px;padding:12px 13px}.contact-section{padding:68px 0}.contact-grid{display:flex;flex-direction:column;gap:34px}.contact-copy{padding:0;width:100%}.contact-copy h2{font-size:53px;line-height:1.08}.contact-copy .eyebrow{margin-bottom:19px}.contact-lead{font-size:19px;margin-top:23px}.contact-copy>p:not(.eyebrow):not(.contact-lead):not(.contact-caption){font-size:13px;max-width:100%}.contact-direct{margin-top:24px;font-size:12px}.contact-caption{font-size:10px;margin-top:12px}.contact-wizard{padding:26px 22px;width:100%;border-radius:20px}#wizard-title{font-size:23px}.wizard-pane>p{font-size:11px}.grade-options{gap:7px;margin-top:25px}.grade-options button{min-height:78px;font-size:22px;border-radius:11px}.grade-options button span{font-size:9px}.wizard-options{grid-template-columns:1fr;gap:9px;margin-top:22px}.wizard-options button{min-height:72px;padding:14px 15px}.wizard-controls{margin-top:29px}.wizard-controls .button{font-size:12px}.wizard-footnote{font-size:9px;line-height:1.8;margin-top:20px}.wizard-head{font-size:9px}.message-links{gap:14px;flex-direction:column;align-items:stretch}.message-links .button{font-size:12px}.message-links .text-link{justify-content:center;padding-block:6px}.message-label{font-size:10px}#message-preview{font-size:11px;min-height:198px}.copy-status,.wizard-disclaimer{font-size:10px}.faq{display:flex;flex-direction:column;gap:35px;padding-bottom:65px}.faq-list details{padding:20px 0}.faq-list summary{font-size:12px;line-height:1.8;gap:18px}.faq-list p{font-size:12px;line-height:1.9}.footer{grid-template-columns:1fr auto;gap:28px;padding-top:32px;padding-bottom:100px}.footer>p{grid-column:1/-1;grid-row:2;font-size:11px}.footer>div{flex-direction:column;gap:8px;font-size:11px}.copyright{margin-top:0;font-size:9px}.mobile-contact{position:fixed;bottom:14px;left:20px;right:20px;z-index:15;display:flex;justify-content:space-between;min-height:52px;padding:15px 21px;font-size:12px;box-shadow:0 5px 25px #1830bd40;opacity:0;pointer-events:none;transform:translateY(80px);transition:opacity .25s,transform .25s}.mobile-contact.is-visible{opacity:1;pointer-events:auto;transform:translateY(0)}.board-dialog{padding:17px;width:calc(100% - 24px);border-radius:16px}.dialog-heading{gap:10px;margin-bottom:16px}.dialog-heading h2{font-size:14px;line-height:1.5}.board-dialog>p{font-size:10px}}
@media(max-width:360px){.container{padding-inline:18px}.hero h1{font-size:40px}.hero .eyebrow{font-size:9px}.hero-visual{height:395px}.credentials{margin-inline:18px}.goal-name h3{font-size:18px}.about-copy h2{font-size:33px}.math-demo-inner{padding-inline:17px}.math-demo-heading h2{font-size:31px}.math-control{padding-inline:11px;font-size:9px}.contact-wizard{padding-inline:18px}.grade-options{gap:5px}.grade-options button{font-size:20px}.contact-copy h2{font-size:48px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}.hero-visual:hover .hero-portrait{transform:none}}

/* Media dimensions follow the layout, rather than HTML intrinsic height hints. */
.about-photo img{height:auto;aspect-ratio:1/1.09}
.board-image-button img{height:auto;aspect-ratio:1280/860;object-fit:contain}
.math-note .mini-label{font-size:11px}.math-note .note-roots{font-size:14px}
#math-demo[data-math-step="3"] .math-equation{font-size:23px;line-height:1.6}
@media(max-width:680px){
 .hero-description{font-size:16px;line-height:1.75}
 .section-heading>p,.about-intro,.board-copy p,.board-copy li,.contact-copy>p:not(.eyebrow):not(.contact-lead):not(.contact-caption){font-size:14px;line-height:1.8}
 .goal-row>p,.pricing-note,.lesson-timeline p,.faq-list p{font-size:13px;line-height:1.8}
 .faq-list summary{font-size:14px;line-height:1.7}
 .goal-name>span,.goal-price span,.credentials div span{font-size:11px}
 .lesson-timeline h3{font-size:15px}.lesson-timeline p{max-width:100%}
 .about-photo img{height:auto;aspect-ratio:1.08}.about-photo figcaption{font-size:11px}
 .math-demo-heading>p:last-child,.math-explain p{font-size:13px;line-height:1.8}
 .math-steps button{font-size:11px}.math-explain{min-height:129px}
 #math-demo[data-math-step="3"] .math-equation{font-size:18px;line-height:1.7}
 .wizard-pane>p,.wizard-options strong,#message-preview{font-size:13px}.wizard-options span{font-size:11px}
 .wizard-footnote{font-size:10px}.wizard-disclaimer,.copy-status{font-size:11px}
 .contact-copy .contact-caption{font-size:12px}.footer>p,.footer>div{font-size:12px}
}