@font-face{font-family:Roboto;src:url('assets/roboto.woff2') format('woff2');font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:'Roboto Slab';src:url('assets/roboto-slab.woff2') format('woff2');font-weight:100 900;font-style:normal;font-display:swap}
:root{--blue:#302d70;--deep:#252354;--yellow:#ffdf36;--ink:#25243a;--muted:#5c5b6d;--paper:#f8f7f2;--line:#d8d6e1;--radius:6px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:150px}body{margin:0;background:var(--paper);color:var(--ink);font:18px/1.75 Roboto,Arial,sans-serif}a{color:inherit}a,button,summary{touch-action:manipulation;-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}img{display:block;max-width:100%;height:auto}h1,h2,h3,p{margin-top:0}p{margin-bottom:22px}h1,h2,h3{font-family:'Roboto Slab',Georgia,serif;line-height:1.2;letter-spacing:-.025em;font-weight:600}h2{font-size:clamp(34px,3.6vw,50px);margin-bottom:25px}h3{font-size:24px;margin-bottom:17px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #ae8b00;outline-offset:5px}.section-shell{width:min(1240px,calc(100% - 100px));margin-inline:auto}.section-space{padding-block:100px}.eyebrow{font-size:14px;letter-spacing:.09em;font-weight:700;line-height:1.6;color:var(--blue);margin-bottom:22px}.button{display:inline-flex;justify-content:space-between;align-items:center;gap:25px;min-height:58px;padding:16px 23px;border:1px solid transparent;border-radius:var(--radius);background:var(--blue);color:white;text-decoration:none;font-size:16px;font-weight:650;line-height:1.5;transition:background .2s,transform .2s}.button:hover{background:var(--deep);transform:translateY(-2px)}.button>span{font-size:24px;line-height:1;font-weight:400;flex-shrink:0}.button-small{min-height:48px;padding:12px 18px}.button-yellow{background:var(--yellow);color:var(--deep)}.button-yellow:hover{background:#f5d126}.text-link{display:inline-flex;align-items:center;gap:18px;border-bottom:1px solid currentColor;padding:8px 0;font-size:16px;font-weight:600;text-decoration:none;line-height:1.6;color:var(--blue)}.text-link>span{font-size:23px}.text-link:hover{color:#514b91}.skip-link{position:absolute;z-index:100;top:-150px;left:15px;background:var(--yellow);padding:12px 20px}.skip-link:focus{top:12px}
/* A self-contained course page, with a clear route back to the main website. */
.header{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid #e4e1e9}.nav-wrap{width:min(1320px,calc(100% - 80px));margin:auto;display:flex;align-items:center;justify-content:space-between;gap:30px}.landing-topline{background:var(--blue);color:#fff}.landing-topline .nav-wrap{min-height:43px;gap:20px}.landing-topline .nav-wrap>span{font-size:14px;color:#e0dced}.back-home{display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:600;text-underline-offset:4px;text-decoration:none;line-height:1.5}.back-home:hover{text-decoration:underline}.back-home>span{font-size:23px}.main-nav{min-height:90px}.brand{flex-shrink:0}.brand img{width:255px;max-height:63px;object-fit:contain;object-position:left}#navigation{display:flex;gap:24px;align-items:center}#navigation>a{font-size:16px;font-weight:550;text-decoration:none;line-height:1.5}#navigation>a:not(.button):hover{text-decoration:underline;text-underline-offset:5px;color:var(--blue)}.menu-toggle{display:none;border:1px solid var(--line);border-radius:4px;background:transparent;padding:13px;min-width:48px;min-height:48px}.menu-toggle span{display:block;height:2px;width:22px;background:var(--blue)}
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:center;padding-block:65px 70px;min-height:700px}.hero .eyebrow{display:flex;align-items:center;gap:10px;font-size:14px;letter-spacing:.055em}.small-line{width:25px;height:3px;flex-shrink:0;background:var(--yellow)}.hero h1{font-size:clamp(46px,4.5vw,65px);line-height:1.12;letter-spacing:-.035em;font-weight:650;color:var(--blue);margin-bottom:29px}.highlight{display:inline-block;position:relative;isolation:isolate}.highlight:after{content:'';position:absolute;left:-2%;right:-2%;height:20%;bottom:3%;transform:rotate(-2deg);z-index:-1;background:var(--yellow)}.hero-description{font-size:19px;line-height:1.8;max-width:540px;color:var(--muted);margin-bottom:29px}.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:13px 23px}.hero-actions .text-link{font-size:16px;border:0}.hero-note{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:15px;color:var(--muted);margin-top:24px;margin-bottom:0}.check{color:var(--blue)}.dot{color:#aaa5ba}.hero-art{position:relative;min-height:550px;height:100%;max-height:600px;isolation:isolate}.math-grid{position:absolute;inset:25px 0;background-image:linear-gradient(#302d700c 1px,transparent 1px),linear-gradient(90deg,#302d700c 1px,transparent 1px);background-size:25px 25px;mask-image:radial-gradient(ellipse,#000 30%,transparent 75%)}.hero-curve{position:absolute;inset:20px 0 0;width:100%;height:100%;fill:none;stroke:#d2cfdd;stroke-width:1.5;z-index:-1}.hero-curve .curve{stroke:#bbb6d4;stroke-width:2;stroke-dasharray:6 6}.hero-curve circle{fill:var(--yellow);stroke:var(--yellow)}.formula{position:absolute;font:italic 28px Georgia,serif;color:#aaa5bd}.formula-one{top:18px;left:15px;transform:rotate(-13deg)}.formula-two{right:0;bottom:65px;transform:rotate(8deg)}.paper{position:absolute;width:57%;max-width:300px;top:60px;left:32%;aspect-ratio:.707;background:white;box-shadow:0 7px 25px #29205017;border:1px solid #e1deea;overflow:hidden}.paper-back{transform:rotate(12deg)}.paper img{width:100%;height:100%;object-fit:cover}.course-book{position:absolute;top:53px;left:12%;width:64%;max-width:330px;aspect-ratio:.732;transform:rotate(-8deg);filter:drop-shadow(10px 24px 18px #302d7027);border-radius:2px 6px 6px 2px;container-type:inline-size}.book-front{height:100%;background:var(--blue);color:#fff;padding:9cqw 8cqw 6cqw 10cqw;border-radius:2px 6px 6px 2px;overflow:hidden;box-shadow:inset -4px 0 #1e1b4b,inset 1px 0 #514b99}.book-spine{position:absolute;left:-8px;top:0;width:10px;height:100%;background:#232053;border-radius:3px 0 0 3px;box-shadow:inset 2px 0 #6c65aa;z-index:2}.book-logo{width:70cqw;height:14cqw;object-fit:contain;object-position:left;margin-bottom:8cqw}.book-kicker{font-size:2cqw;letter-spacing:.08em;font-weight:600;color:#dddbee;margin-bottom:4cqw}.book-title{font:650 10cqw/1.17 Roboto,Arial,sans-serif;letter-spacing:-.02em;margin-bottom:0}.book-graphic{height:37cqw;margin-top:5cqw;position:relative}.book-graphic svg{height:35cqw;width:100%;stroke:#ffffff40;stroke-width:1;fill:none}.book-graph{stroke:var(--yellow);stroke-width:3}.book-graphic circle{fill:var(--yellow);stroke:var(--yellow)}.book-graphic>span{position:absolute;bottom:4cqw;right:0;font-size:2.8cqw;color:var(--yellow);font-style:italic}.book-footer{display:flex;justify-content:space-between;gap:4cqw;border-top:1px solid #ffffff30;padding-top:4cqw;font-size:2cqw}.sample-sticker{position:absolute;bottom:65px;right:0;display:flex;flex-direction:column;justify-content:center;width:158px;height:158px;border-radius:50%;padding-left:24px;background:var(--yellow);color:var(--deep);text-decoration:none;transform:rotate(7deg);line-height:1.3}.sample-sticker strong{font-size:42px;font-weight:700;letter-spacing:-.04em}.sample-sticker>span:not(.sticker-arrow){font-size:14px;font-weight:600}.sticker-arrow{position:absolute;right:26px;top:12px;font-size:24px}.art-caption{position:absolute;left:30px;right:10px;bottom:-5px;font-size:14px;color:var(--muted);line-height:1.6;margin:0}.art-caption>span{font-size:19px;margin-right:7px}.facts-bar{background:var(--blue);color:#fff}.facts-inner{display:grid;grid-template-columns:repeat(4,1fr);padding-block:32px}.facts-inner>div{display:flex;flex-direction:column;border-left:1px solid #ffffff28;padding-left:30px}.facts-inner>div:first-child{border:0;padding:0}.facts-inner strong{font-size:30px;font-weight:650;line-height:1.4}.facts-inner span{font-size:16px;line-height:1.6;color:#e0dced;margin-top:5px}
.section-heading>p:not(.eyebrow),.entry-heading>p:not(.eyebrow){color:var(--muted);max-width:640px}.concept>.section-heading{max-width:800px}.learning-path{display:grid;grid-template-columns:repeat(3,1fr);gap:42px;margin-top:48px}.step-number{display:flex;align-items:center;justify-content:space-between;padding-bottom:22px;margin-bottom:25px;border-bottom:1px solid var(--line);font-size:40px;font-weight:500;color:var(--blue)}.step-number>span{font-size:27px}.learning-path h3{font-size:23px}.learning-path p{font-size:18px;color:var(--muted);line-height:1.8;margin-bottom:0}.group-note{display:flex;gap:28px;align-items:center;margin-top:44px;border:1px solid var(--line);border-left:4px solid var(--yellow);border-radius:var(--radius);padding:30px}.group-note h3{font-size:24px;color:var(--blue);margin-bottom:13px}.group-note p{font-size:18px;color:var(--muted);margin:0;line-height:1.8}.group-symbol{min-width:65px;height:50px;display:flex;align-items:end;gap:5px}.group-symbol>span{position:relative;width:18px;height:21px;background:#d5d1e6;border-radius:12px 12px 2px 2px}.group-symbol>span:before{content:'';position:absolute;top:-16px;left:4px;width:10px;height:10px;border-radius:50%;background:inherit}.group-symbol>span:nth-child(2){height:29px;background:var(--blue)}.support-section{padding-block:0 95px}.support-intro{max-width:800px}.support-intro>p:not(.eyebrow),.support-explanation{color:var(--muted);max-width:970px}.support-ratios{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;border-block:1px solid var(--line);padding-block:28px;margin-block:30px}.support-ratios>div{display:flex;flex-direction:column;gap:5px}.support-ratios span{font-size:16px;color:var(--muted)}.support-ratios strong{font-size:25px;font-weight:600;color:var(--blue);line-height:1.4}.support-explanation{margin:0}.audience{background:#f0eee5}.audience-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:42px;margin-top:40px}.audience-index{display:block;font-size:16px;font-weight:700;color:var(--blue);margin-bottom:20px}.audience-grid h3{font-size:24px}.audience-grid p{color:var(--muted);font-size:18px;line-height:1.8;margin-bottom:0}
.curriculum{background:#eeedf4}.curriculum-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:75px}.curriculum .section-heading>p:not(.eyebrow){max-width:430px}.curriculum .text-link{margin-top:5px}.curriculum-aside{display:flex;gap:20px;align-items:center;margin-top:40px}.curriculum-aside>span{font:italic 42px Georgia,serif;color:#9c96b4}.curriculum-aside p{font-size:16px;color:var(--muted);line-height:1.75;margin-bottom:0}.curriculum-aside strong{color:var(--blue)}details{border-bottom:1px solid #ceccdc}summary{display:flex;align-items:center;gap:20px;cursor:pointer;list-style:none}summary::-webkit-details-marker{display:none}.topics details:first-child{border-top:1px solid #ceccdc}.topics summary{font-size:21px;font-weight:600;line-height:1.5;color:var(--blue);padding-block:25px}.topic-code{display:flex;align-items:center;justify-content:center;min-width:46px;height:46px;border-radius:50%;font-size:15px;font-weight:700;background:var(--blue);color:white}.topics summary small{display:block;font-size:16px;font-weight:400;line-height:1.6;color:var(--muted);margin-top:5px}.plus{font-size:27px;font-weight:400;line-height:1;margin-left:auto;transition:transform .15s;flex-shrink:0}details[open]>summary .plus{transform:rotate(45deg)}.topic-body{padding:0 15px 27px 66px}.topic-body p{font-size:17px;color:var(--muted);line-height:1.8;margin-bottom:18px}.topic-tags{display:flex;gap:8px;flex-wrap:wrap}.topic-tags span{border:1px solid #c8c4d7;border-radius:25px;padding:5px 12px;font-size:14px;line-height:1.6;color:var(--blue)}
.sample{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}.sample-visual{position:relative;min-height:480px;height:100%;max-height:550px;border-radius:var(--radius);background:#eceaf2;overflow:hidden}.sample-visual:after{content:'';position:absolute;width:280px;height:280px;border-radius:50%;background:var(--yellow);bottom:-150px;left:-120px}.sample-sheet{position:absolute;width:55%;overflow:hidden;background:white;border:1px solid #dfdbe7;box-shadow:0 14px 30px #302d701a}.sheet-front{top:65px;right:9%;transform:rotate(7deg)}.sheet-rear{top:24px;left:9%;transform:rotate(-10deg)}.sample-label{position:absolute;z-index:2;left:25px;right:25px;bottom:30px;background:var(--blue);color:white;font-size:16px;font-weight:550;line-height:1.6;display:flex;align-items:center;justify-content:space-between;gap:15px;padding:14px 18px;transform:rotate(-2deg)}.sample-label>span{font-size:24px}.sample-copy>p:not(.eyebrow):not(.fineprint){font-size:18px;color:var(--muted);line-height:1.8}.sample-copy strong{color:var(--ink);font-weight:600}.fineprint{font-size:15px;color:var(--muted);line-height:1.8;margin-top:18px;margin-bottom:0}
.entry{display:grid;grid-template-columns:.95fr 1.05fr;gap:50px 80px;padding-top:0}.entry-steps{display:flex;flex-direction:column;gap:27px}.entry-steps article{display:flex;gap:23px}.entry-steps article>span{font-size:27px;line-height:1.4;color:var(--blue);font-weight:500}.entry-steps h3{font-size:23px;margin-bottom:10px}.entry-steps p{font-size:17px;color:var(--muted);margin:0;line-height:1.8}.new-group{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:40px;padding:32px 36px;border-radius:var(--radius);background:#eeedf4;border-left:4px solid var(--yellow)}.new-group>div{max-width:770px}.new-group h3{color:var(--blue);font-size:28px}.new-group .eyebrow{margin-bottom:14px}.new-group p:not(.eyebrow){margin:0;color:var(--muted);font-size:17px}.new-group .button{flex-shrink:0;max-width:300px}
.schedule{background:#eeedf4}.schedule-heading{display:flex;justify-content:space-between;align-items:end;gap:60px;margin-bottom:38px}.schedule-heading h2{margin-bottom:0}.schedule-heading>p{max-width:420px;color:var(--muted);font-size:18px;margin:0}.schedule-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:35px}.group-options{display:grid;grid-template-columns:1fr 1fr;align-content:start;gap:17px}.group-option{display:flex;flex-direction:column;align-items:start;position:relative;min-height:330px;border:1px solid #c4bfd6;background:transparent;border-radius:var(--radius);padding:24px;text-align:left;color:var(--blue)}.group-option.selected{background:white;border:2px solid var(--blue);padding:23px}.group-option:hover{border-color:var(--blue)}.group-top{display:flex;justify-content:space-between;align-items:center;gap:12px;width:100%;font-size:14px;letter-spacing:.06em;font-weight:700;margin-bottom:27px}.radio-dot{border:1px solid #a29aba;width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.selected .radio-dot{border-color:var(--blue)}.selected .radio-dot:before{content:'';background:var(--blue);width:10px;height:10px;border-radius:50%}.group-option strong{font-size:26px;line-height:1.35;letter-spacing:-.015em;font-weight:600;min-height:72px}.group-time{font-size:17px;line-height:1.7;margin-top:10px}.group-progress{font-size:16px;line-height:1.6;margin-top:15px;padding:5px 9px;background:#e8e5f1;border-radius:4px;color:var(--deep)}.group-bottom{display:flex;justify-content:space-between;align-items:center;gap:13px;font-size:15px;line-height:1.6;width:100%;border-top:1px solid var(--line);padding-top:17px;margin-top:24px;color:var(--muted)}.group-bottom>span{font-size:24px;color:var(--blue)}.schedule-note{grid-column:1/-1;font-size:15px;line-height:1.8;color:var(--muted);margin:0}.price-card{padding:33px;border-radius:var(--radius);background:var(--blue);color:white}.price-card .eyebrow{color:#e0dced;font-size:14px;margin-bottom:18px}.price{display:flex;align-items:center;gap:26px}.price>strong{font-size:83px;line-height:1.1;letter-spacing:-.06em;font-weight:650}.price>strong>span{font-size:40px;font-weight:400;letter-spacing:0;vertical-align:17px;margin-left:9px}.price>p{font-size:16px;line-height:1.6;color:#e6e1f1;margin:0}.unit-price{font-size:16px;line-height:1.8;border-bottom:1px solid #ffffff30;padding-bottom:24px;margin-block:22px 24px;color:#e6e1f1}.unit-price strong{color:#fff}.checks{list-style:none;padding:0;margin:0 0 27px;font-size:16px;line-height:1.8}.checks li{padding-left:24px;position:relative;margin-bottom:10px}.checks li:before{position:absolute;left:0;content:'✓';color:var(--yellow)}.price-card .button{width:100%;font-size:16px;gap:16px}.selection-note{font-size:15px;line-height:1.6;color:#e0dced;text-align:center;margin:15px 0 0}.course-formats{display:grid;grid-template-columns:1fr 1fr;gap:40px;border-top:1px solid #ceccdc;margin-top:45px;padding-top:40px}.course-formats article{padding-right:15px}.course-formats article+article{border-left:1px solid #ceccdc;padding-left:40px;padding-right:0}.course-formats h3{font-size:29px;color:var(--blue);margin-bottom:21px}.course-formats p:not(.eyebrow){font-size:18px;line-height:1.8;color:var(--muted)}.intensive-facts{display:flex;flex-direction:column;gap:10px;margin-bottom:22px}.intensive-facts span{font-size:17px;color:var(--muted)}.intensive-facts strong{color:var(--blue)}
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@media(max-width:1000px){#navigation{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:white;border-bottom:1px solid var(--line);padding:15px 28px 25px;max-height:calc(100dvh - 130px);overflow:auto}#navigation.open{display:flex}#navigation>a{font-size:17px;padding:13px 0}#navigation>a.button{padding:15px 18px;margin-top:10px}.menu-toggle{display:flex;flex-direction:column;gap:6px;align-items:center;justify-content:center}.landing-topline .nav-wrap>span{font-size:14px}.hero{grid-template-columns:1fr 1fr;gap:10px}.hero h1{font-size:46px}.hero-description{font-size:18px}.hero-art{min-height:470px}.art-caption{font-size:14px}.sample-sticker{width:135px;height:135px;bottom:70px;padding-left:19px}.sample-sticker strong{font-size:36px}.sample-sticker>span:not(.sticker-arrow){font-size:14px}.learning-path h3,.audience-grid h3{font-size:22px}.facts-inner{gap:0}.facts-inner span{font-size:15px}.curriculum-layout{grid-template-columns:1fr;gap:35px}.curriculum .section-heading>p:not(.eyebrow){max-width:700px}.curriculum-aside{margin-top:25px}.curriculum .topics{max-width:none}.sample{grid-template-columns:.9fr 1.1fr;gap:35px}.sample-visual{min-height:450px}.entry{grid-template-columns:1fr}.entry-heading>p:not(.eyebrow){max-width:750px}.new-group{flex-direction:column;align-items:start}.new-group .button{max-width:none}.support-ratios{gap:25px}.support-ratios strong{font-size:23px}.faq{grid-template-columns:1fr;gap:15px}.contact-layout{grid-template-columns:1fr 1fr;gap:30px}.contact-direct{padding-left:25px}.contact-direct>a{font-size:17px}}
@media(max-width:700px){html{scroll-padding-top:145px}.section-shell{width:calc(100% - 40px)}.section-space{padding-block:65px}.nav-wrap{width:calc(100% - 36px)}.landing-topline .nav-wrap{min-height:43px;justify-content:flex-start}.landing-topline .nav-wrap>span{display:none}.back-home{font-size:16px}.main-nav{min-height:78px}.brand img{width:215px;max-height:55px}.eyebrow{font-size:14px;letter-spacing:.06em;margin-bottom:18px}h2{font-size:35px;line-height:1.25}h3{font-size:24px}body{font-size:18px;line-height:1.8}.hero{display:flex;flex-direction:column;align-items:stretch;padding-block:40px 40px;gap:0;min-height:0}.hero .eyebrow{font-size:14px;align-items:start;gap:8px}.small-line{width:20px;margin-top:10px}.hero h1{font-size:clamp(36px,9.7vw,51px);line-height:1.15;margin-bottom:25px}.hero-description{font-size:18px;line-height:1.8}.hero-actions{align-items:stretch;flex-direction:column;gap:9px}.hero-actions .button{font-size:17px;min-height:60px}.hero-actions 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@media(max-width:380px){.section-shell{width:calc(100% - 36px)}.nav-wrap{width:calc(100% - 32px)}.brand img{width:200px}.hero h1{font-size:35px}.hero-art{height:455px;min-height:455px}.sample-sticker{width:142px;height:142px;bottom:65px}.sample-visual{height:400px}.price-card{padding:24px}.price{flex-wrap:wrap;gap:15px}.contact .button{font-size:16px}.contact-direct>a{font-size:18px}.new-group{padding:23px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

/* Group illustration with an explicit stock-photo caption. */
.teacher{grid-template-columns:1.1fr 1fr;gap:70px}.teacher-group{margin:0;min-width:0}.teacher-group>img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--radius)}.teacher-group figcaption{font-size:15px;line-height:1.7;color:var(--muted);margin-top:15px}.teacher-group figcaption a{font-size:14px;text-underline-offset:3px}.teacher-group figcaption a:hover{color:var(--blue)}
@media(max-width:1000px){.teacher{gap:40px}}
@media(max-width:700px){.teacher{grid-template-columns:1fr;gap:35px}.teacher-group{width:100%;max-width:540px;margin-inline:auto}.teacher-group figcaption{font-size:15px}}