:root{--mk-navy:#172b49;--mk-navy-deep:#10223a;--mk-amber:#fbb03b;--mk-amber-dark:#b86800;--mk-paper:#fff;--mk-off-white:#f6f7f5;--mk-blue-wash:#f1f5f8;--mk-text:#263b53;--mk-muted:#5a6877;--mk-border:#dbe1e5}main{background:var(--mk-paper);font-family:var(--font-inter), sans-serif;font-weight:400}.mk-container{width:min(100% - 96px,1920px);margin-inline:auto}.mk-band{background:var(--mk-off-white)}.mk-eyebrow{color:var(--mk-navy);letter-spacing:.09em;text-transform:uppercase;margin:0 0 20px;font-size:.72rem;font-weight:600;line-height:1.15}.mk-header{z-index:3;color:#fff;border-bottom:1px solid #fff3;position:absolute;inset:0 0 auto}.mk-header--solid{background:var(--mk-navy-deep);position:relative;inset:auto}.mk-header-inner{justify-content:space-between;align-items:center;gap:40px;min-height:88px;display:flex}.mk-brand{color:inherit;flex-shrink:0;align-items:center;gap:17px;text-decoration:none;display:inline-flex}.mk-brand img{width:140px;height:auto}.mk-brand span{letter-spacing:.1em;text-transform:uppercase;opacity:.9;border-left:1px solid;padding-left:17px;font-size:.69rem;font-weight:600}.mk-nav{align-items:center;gap:34px;font-size:.9rem;font-weight:600;display:flex}.mk-navigation{position:relative}.mk-menu-toggle{display:none}.mk-nav a{text-decoration:none}.mk-nav a:not(.mk-nav-cta):hover{text-decoration:underline}.mk-nav-cta{background:var(--mk-amber);color:var(--mk-navy-deep);border-radius:3px;padding:12px 18px}.mk-nav-cta:hover{background:#f7a51f}.mk-hero{color:#fff;min-height:clamp(680px,100svh - 24px,900px);display:flex;position:relative;overflow:hidden}.mk-hero-background{object-fit:cover;object-position:center}.mk-hero-overlay{z-index:1;background:linear-gradient(90deg,#09192fd1 0%,#09192fb3 37%,#09192f61 72%,#09192f3d 100%);position:absolute;inset:0}.mk-hero-inner{z-index:2;min-height:inherit;align-items:flex-end;padding-block:138px 48px;display:flex;position:relative}.mk-hero-copy{max-width:700px}.mk-hero .mk-eyebrow{color:#fff}.mk-hero h1{color:#fff;letter-spacing:-.025em;max-width:700px;margin:0;font-size:clamp(3.7rem,4.25vw,4.35rem);font-weight:700;line-height:.98}.mk-hero h1 span{display:block}.mk-hero h1 .mk-hero-title-accent{color:var(--mk-amber);margin-top:8px;font-size:.9em}.mk-lede{color:#f5f8fa;max-width:620px;margin:22px 0 0;font-size:1.08rem;font-style:normal;font-weight:400;line-height:1.55}.mk-actions{flex-wrap:wrap;gap:12px;margin-top:24px;display:flex}.mk-button{border:1px solid #0000;border-radius:3px;justify-content:center;align-items:center;gap:30px;min-height:52px;padding:13px 20px;font-size:.86rem;font-weight:600;text-decoration:none;display:inline-flex}.mk-button-amber{background:var(--mk-amber);color:var(--mk-navy-deep)}.mk-button-amber:hover{background:#f7a51f}.mk-button-outline{color:#fff;background:0 0;border-color:#ffffff9e}.mk-button-outline:hover{background:#ffffff14;border-color:#fff}.mk-product-shot{min-width:0;margin:0}.mk-product-shot a{border:1px solid var(--mk-border);background:#fff;border-radius:5px;display:block;overflow:hidden;box-shadow:0 18px 40px #172b491a}.mk-product-shot img{width:100%;height:auto}.mk-hero-proof{border-left:3px solid var(--mk-amber);color:#fff;flex-wrap:wrap;gap:4px 12px;width:fit-content;max-width:100%;margin:14px 0 0;padding:6px 0 6px 12px;font-size:.9rem;line-height:1.4;display:flex}.mk-hero-proof span{color:var(--mk-amber);letter-spacing:.06em;text-transform:uppercase;align-self:center;font-size:.74rem;font-weight:700}.mk-section-intro h2,.mk-final-cta h2,.mk-contact h2{color:var(--mk-navy);letter-spacing:-.025em;margin:0;font-size:clamp(2.8rem,4.2vw,4.8rem);font-weight:700;line-height:.98}.mk-section-intro>p:not(.mk-eyebrow):not(.mk-inline-proof),.mk-final-cta p,.mk-contact-copy>p:not(.mk-eyebrow){max-width:590px;color:var(--mk-text);margin:28px 0 0;font-size:1.04rem;font-style:normal;font-weight:400;line-height:1.6}.mk-audiences{border-top:1px solid var(--mk-border);color:var(--mk-navy);flex-wrap:wrap;gap:8px 20px;margin-top:38px;padding-top:22px;font-size:.78rem;font-weight:600;display:flex}.mk-evidence{padding-block:48px}.mk-evidence-grid{grid-template-columns:1.45fr .7fr;align-items:end;gap:64px;display:grid}.mk-stat{color:var(--mk-amber-dark);letter-spacing:-.035em;white-space:nowrap;margin:0;font-size:clamp(4.5rem,6.25vw,6.5rem);font-weight:700;line-height:.82}.mk-evidence-label{max-width:420px;color:var(--mk-navy);letter-spacing:-.01em;margin:0;font-size:1.45rem;font-weight:600;line-height:1.25}.mk-product-section{height:680px;overflow:hidden}.mk-product-section .mk-container{grid-template-columns:minmax(390px,.62fr) minmax(0,1.38fr);align-items:center;gap:72px;height:100%;display:grid}.mk-section-intro{max-width:540px}.mk-inline-proof{border-top:2px solid var(--mk-amber);color:var(--mk-navy);margin:32px 0 0;padding-top:20px;font-size:1rem;font-weight:600}.mk-product-section .mk-product-shot{perspective:1500px;min-width:0;height:100%;margin-right:-48px}.mk-product-section .mk-product-shot a{transform-origin:0;border:0;border-radius:0;width:max-content;height:100%;transform:rotateY(-5deg)rotate(.4deg)scale(1.04);box-shadow:0 28px 48px #172b4924;-webkit-mask-image:linear-gradient(90deg,#0000 0,#000 4% 88%,#0000 100%);mask-image:linear-gradient(90deg,#0000 0,#000 4% 88%,#0000 100%)}.mk-product-section .mk-product-shot img{object-fit:cover;width:auto;max-width:none;height:100%}.mk-cover{grid-template-columns:.8fr 1.2fr;align-items:center;gap:96px;padding-block:126px;display:grid}.mk-cover .mk-product-shot a{box-shadow:none;background:0 0;border:0;border-radius:0;overflow:visible}.mk-pt{padding-block:116px}.mk-pt-grid{grid-template-columns:1.35fr .65fr;align-items:center;gap:76px;display:grid}.mk-pt .mk-product-shot a{box-shadow:none;background:0 0;border:0;border-radius:0;overflow:visible}.mk-audience-strip{background-color:#f6f3ed;background-image:url(/product/audience-background-v2.png?v=41c691c1ab12);background-position:100% 0;background-repeat:no-repeat;background-size:auto 100%;grid-template-columns:minmax(0,1fr) minmax(420px,.85fr);align-items:end;gap:96px;width:100vw;max-width:none;margin-inline:0;padding:92px max(48px,50vw - 960px);display:grid;position:relative;left:50%;transform:translate(-50%)}.mk-audience-strip h2,.mk-trust-intro h2{max-width:900px;color:var(--mk-navy);letter-spacing:-.025em;margin:0;font-size:clamp(2.8rem,4.2vw,4.8rem);font-weight:700;line-height:.98}.mk-audience-strip .mk-audiences{margin:0}.mk-human-close{align-items:flex-end;min-height:680px;margin-bottom:0;display:flex;position:relative;overflow:hidden}.mk-human-close img{object-fit:cover;object-position:center 22%;width:100%;height:100%;position:absolute;inset:0}.mk-human-close:after{content:"";background:#0a192c6b;position:absolute;inset:0}.mk-human-close h2{z-index:1;color:#fff;letter-spacing:-.025em;max-width:850px;margin:0;padding:64px;font-size:clamp(3rem,5.2vw,5.5rem);font-weight:700;line-height:.98;position:relative}.mk-trust{padding-block:104px}.mk-trust-intro{margin-bottom:54px}.mk-trust-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;display:grid}.mk-trust-grid article{border-top:5px solid var(--mk-amber);background:#fff;flex-direction:column;min-height:310px;padding:42px;display:flex;position:relative;box-shadow:0 18px 42px #172b4914}.mk-trust-grid article+article{border-top-color:#58728f}.mk-trust-grid article>span{background:var(--mk-navy);color:#fff;border-radius:50%;place-items:center;width:42px;height:42px;font-size:.7rem;font-weight:700;display:grid}.mk-trust-grid h3{max-width:640px;color:var(--mk-navy);letter-spacing:-.02em;margin:28px 0 0;font-size:clamp(1.8rem,2.6vw,2.8rem);line-height:1.05}.mk-trust-grid p{max-width:650px;color:var(--mk-text);margin:20px 0 0;line-height:1.6}.mk-trust-grid a{width:fit-content;color:var(--mk-navy);-webkit-text-decoration-color:var(--mk-amber-dark);text-decoration-color:var(--mk-amber-dark);align-items:center;gap:16px;margin-top:auto;padding-top:28px;font-size:.82rem;font-weight:700;text-decoration-thickness:2px;display:inline-flex}.mk-final-cta{background:var(--mk-navy);color:#fff;padding-block:104px}.mk-final-grid{grid-template-columns:1fr auto;align-items:end;gap:72px;display:grid}.mk-final-cta .mk-eyebrow,.mk-final-cta h2{color:#fff}.mk-final-cta h2{max-width:900px}.mk-final-cta p{color:#d8e0e8}.mk-final-action{justify-items:start;gap:10px;display:grid}.mk-final-action>span{color:#d8e0e8;font-size:.75rem}.mk-contact{grid-template-columns:.75fr 1.25fr;gap:96px;padding-block:96px;display:grid}.mk-contact h2{font-size:clamp(2.5rem,3.6vw,4rem)}.mk-contact-copy>a{margin-top:30px;display:inline-block}.mk-contact form{width:100%;max-width:720px}.mk-contact .button-dark{background:var(--mk-navy)}.mk-footer{border-top:1px solid var(--mk-border);background:var(--mk-off-white);padding-block:44px 30px}.mk-footer-top,.mk-footer-bottom{justify-content:space-between;align-items:center;gap:28px;display:flex}.mk-footer-top p{color:var(--mk-navy);font-weight:600}.mk-footer-bottom{color:var(--mk-muted);margin-top:30px;font-size:.74rem}.mk-footer-bottom span{margin-right:auto}.mk-footer-disclosure{color:var(--mk-muted);margin-top:14px;font-size:.74rem;line-height:1.5}.rules-main{min-height:62vh;color:var(--mk-text);overflow-x:clip}.rules-measure{max-width:1040px}.rules-hero{background-color:var(--mk-blue-wash);background-image:linear-gradient(90deg,#f6f7f5f7 0%,#f6f7f5e6 42%,#f6f7f547 68%,#f6f7f50a 100%),url(/product/back-hero.webp);background-position:50%;background-size:cover;padding-block:92px 82px}.rules-hero-inner{max-width:none}.rules-hero h1{max-width:900px;color:var(--mk-navy);letter-spacing:-.03em;font-size:clamp(3.25rem,5.2vw,5.5rem);line-height:.98}.rules-opening{max-width:720px;margin-top:34px;font-size:1.18rem;line-height:1.58}.rules-opening p+p{margin-top:5px}.rules-sections{padding-block:34px 96px}.rules-section{border-bottom:1px solid var(--mk-border);grid-template-columns:64px minmax(0,1fr);gap:24px;padding-block:54px;scroll-margin-top:24px;display:grid}.rules-section--illustrated{align-items:center;position:relative}.rules-section--image-left{border:0;grid-template-columns:48px minmax(300px,.85fr) minmax(0,1.15fr);column-gap:46px;margin-block:26px 38px;padding:64px 48px 70px}.rules-section--image-left:before{content:"";z-index:0;inset-block:0;background:linear-gradient(135deg,#f1f5f8 0%,#f7f8f7 68%,#fff8ed 100%);width:100vw;position:absolute;left:50%;transform:translate(-50%)}.rules-section--image-right{grid-template-columns:48px minmax(0,1.15fr) minmax(300px,.85fr);column-gap:46px;padding-block:76px}.rules-section--image-right .rules-section-visual{grid-column:3}.rules-section--image-right .rules-section-content{grid-area:1/2}.rules-section-visual{min-width:0;margin:0}.rules-section--illustrated .rules-section-visual{z-index:1;position:relative}.rules-section--image-left .rules-section-visual:before{content:"";z-index:-1;background:var(--mk-amber);position:absolute;inset:18px -18px -18px 18px}.rules-section--image-right .rules-section-visual:before{content:"";z-index:-1;background:var(--slate);position:absolute;inset:18px 18px -18px -18px}.rules-section-visual img{width:100%;height:auto;display:block}.rules-section--image-left .rules-section-visual img{aspect-ratio:4/5;object-fit:cover;object-position:51% center;box-shadow:0 22px 40px #172b4929}#when-something-will-not-fit .rules-section-visual img{object-position:58% center}.rules-section--image-right .rules-section-visual img{aspect-ratio:3/2;object-fit:cover;object-position:center;box-shadow:0 18px 36px #172b4921}#teacher-registration .rules-section-visual img{aspect-ratio:16/9}.rules-section--illustrated .rules-section-content{z-index:1;position:relative}.rules-section--illustrated .rules-index{z-index:1;background:var(--mk-navy);color:#fff;border-radius:50%;align-self:start;place-items:center;width:46px;height:46px;padding:0;display:grid;position:relative}.rules-section--background{background-color:#f4f2eb;background-image:linear-gradient(90deg, #f7f7f3f7 0%, #f7f7f3eb 48%, #f7f7f361 72%, #f7f7f314 100%), var(--rules-section-image);background-position:50%;background-repeat:no-repeat;background-size:cover;border:0;grid-template-columns:46px minmax(0,820px) 1fr;column-gap:32px;width:100vw;max-width:none;margin-block:38px -96px;padding:clamp(72px,7vw,110px) clamp(48px,5vw,96px) clamp(80px,8vw,124px);position:relative;left:50%;transform:translate(-50%)}.rules-section--background .rules-index{background:var(--mk-navy);color:#fff;border-radius:50%;align-self:start;place-items:center;width:46px;height:46px;padding:0;display:grid}.rules-index{color:var(--mk-navy);padding-top:8px;font-size:.76rem;font-weight:700}.rules-section h2{color:var(--mk-navy);letter-spacing:-.02em;font-size:clamp(1.8rem,3vw,2.75rem);line-height:1.08}.rules-section h2+p{margin-top:25px}.rules-section p:not(.rules-index):not(.rules-source){max-width:820px;font-size:1rem;line-height:1.68}.rules-section p:not(.rules-source)+p:not(.rules-source){margin-top:15px}.rules-source{border-top:1px solid var(--mk-border);max-width:820px;color:var(--mk-muted);align-items:baseline;gap:15px;margin-top:25px;padding-top:16px;font-size:.76rem;line-height:1.5;display:flex}.rules-source span{color:var(--mk-navy);text-transform:uppercase;letter-spacing:.07em;flex:none;font-weight:700}.rules-placeholder{min-height:54vh}.rules-placeholder p{max-width:620px;margin-top:28px;font-size:1.08rem}.rules-placeholder a{margin-top:28px;font-size:.85rem;font-weight:600;display:inline-block}@media (max-width:1800px){.mk-evidence-grid{grid-template-columns:1fr;align-items:start;gap:30px}.mk-evidence-label{max-width:620px}}@media (max-width:1050px){.mk-container{width:calc(100% - 64px)}.mk-hero h1{font-size:3.8rem}.mk-product-section .mk-container,.mk-pt-grid{gap:46px}.mk-cover{gap:50px}.mk-nav{gap:20px}.rules-section--image-left{grid-template-columns:44px minmax(270px,.8fr) minmax(0,1.2fr);column-gap:34px;padding-inline:40px}.rules-section--image-right{grid-template-columns:44px minmax(0,1.2fr) minmax(270px,.8fr);column-gap:34px}}@media (min-width:1051px){.rules-section--illustrated{width:calc(100vw - 96px);max-width:1920px;margin-inline:0;padding-inline:clamp(48px,4vw,88px);left:50%;transform:translate(-50%)}.rules-section--image-left{grid-template-columns:48px minmax(420px,.85fr) minmax(0,1.15fr);column-gap:clamp(40px,4vw,72px)}#class-sizes.rules-section--image-left,#when-something-will-not-fit.rules-section--image-left{grid-template-columns:48px minmax(540px,1.15fr) minmax(0,.85fr)}.rules-section--image-left .rules-section-visual img{aspect-ratio:auto;height:clamp(460px,35vw,650px)}.rules-section--image-right{grid-template-columns:48px minmax(0,1.15fr) minmax(420px,.85fr);column-gap:clamp(40px,4vw,72px)}#teacher-registration.rules-section--image-right{grid-template-columns:48px minmax(0,.85fr) minmax(540px,1.15fr)}}@media (max-width:800px){.mk-container{width:calc(100% - 40px)}.mk-header-inner{min-height:74px}.mk-menu-toggle{background:var(--mk-navy-deep);color:#fff;border:1px solid #fff9;border-radius:3px;align-items:center;gap:12px;min-height:44px;padding:10px 14px;font-size:.9rem;font-weight:600;display:inline-flex}.mk-navigation :focus-visible{outline-color:var(--mk-amber)}.mk-nav{background:var(--mk-navy-deep);color:#fff;border:1px solid #fff3;border-radius:5px;align-items:stretch;gap:4px;width:min(300px,100vw - 32px);padding:12px;display:none;position:absolute;top:calc(100% + 12px);right:0;box-shadow:0 16px 40px #09192f40}.mk-nav.is-open{flex-direction:column;display:flex}.mk-navigation .mk-nav a{border-radius:3px;align-items:center;min-height:48px;padding:12px 16px;display:flex}.mk-nav a:not(.mk-nav-cta):hover{background:#ffffff1a}.mk-nav .mk-nav-cta{margin-top:4px;padding:12px 16px}.mk-brand img{width:112px}.mk-brand span{padding-left:11px;font-size:.58rem}.mk-nav-cta{padding:10px 13px}.mk-hero{min-height:max(700px,100svh - 16px)}.mk-hero-background{object-position:43% center}.mk-hero-overlay{background:linear-gradient(90deg,#09192fd1,#09192f9e)}.mk-hero-inner{padding-block:120px 42px}.mk-hero h1{font-size:3.65rem}.mk-pt{padding-block:72px}.mk-product-section{height:auto;padding-block:72px}.mk-product-section .mk-container{height:auto}.mk-product-section .mk-container,.mk-cover,.mk-pt-grid,.mk-audience-strip,.mk-trust-grid,.mk-contact{grid-template-columns:1fr}.mk-product-section .mk-container,.mk-cover,.mk-pt-grid{gap:42px}.mk-section-intro h2{font-size:3rem}.mk-evidence{padding-block:56px}.mk-evidence-grid{grid-template-columns:1fr;gap:44px}.mk-stat{white-space:normal;font-size:6.6rem}.mk-product-section .mk-product-shot{perspective:none;min-width:0;height:auto;margin-right:0}.mk-product-section .mk-product-shot a{border:1px solid var(--mk-border);border-radius:5px;width:auto;height:auto;transform:none;box-shadow:0 14px 30px #172b491a;-webkit-mask-image:none;mask-image:none}.mk-product-section .mk-product-shot img{object-fit:initial;width:100%;max-width:100%;height:auto}.mk-cover{padding-block:82px}.mk-pt .mk-section-intro{order:-1}.mk-audience-strip{background-image:linear-gradient(#f6f3edd1,#f6f3ede6),url(/product/audience-background-v2.png?v=41c691c1ab12);background-position:72% 0;gap:38px;padding:72px 32px}.mk-human-close{min-height:620px;margin-bottom:0}.mk-human-close h2{padding:36px}.mk-trust{padding-block:76px}.mk-trust-grid{gap:16px}.mk-final-grid{grid-template-columns:1fr;gap:40px}.mk-contact{gap:40px}.rules-section--illustrated{grid-template-columns:46px minmax(0,1fr);align-items:start;padding:48px 40px 58px}.rules-section--illustrated .rules-section-visual,.rules-section--illustrated .rules-section-content{grid-column:2}.rules-section--illustrated .rules-section-visual{max-width:440px}.rules-section--image-left .rules-section-visual img{aspect-ratio:3/2}.rules-section--image-right .rules-section-content{grid-row:1}.rules-section--image-right .rules-section-visual{grid-row:2}.rules-section--background{background-position:100%;grid-template-columns:46px minmax(0,1fr);column-gap:24px;margin-bottom:-72px;padding:64px 40px 78px}.rules-hero{background-position:58%;padding-block:68px 60px}.rules-sections{padding-bottom:72px}}@media (max-width:480px){.mk-container{width:calc(100% - 32px)}.mk-brand span{display:none}.mk-hero h1{font-size:clamp(2.65rem,10.5vw,3rem)}.mk-lede{font-size:1rem}.mk-actions{flex-direction:column;align-items:stretch}.mk-button{justify-content:space-between;width:100%}.mk-hero-background{object-position:39% center}.mk-hero-inner{padding-block:108px 32px}.mk-section-intro h2,.mk-audience-strip h2,.mk-trust-intro h2,.mk-final-cta h2{font-size:2.55rem}.mk-audience-strip{background-position:66% 0;padding-inline:16px}.mk-stat{font-size:4.6rem}.mk-human-close{width:100%;min-height:560px;margin-bottom:0}.mk-human-close h2{padding:24px 16px;font-size:2.7rem}.mk-trust-grid article{min-height:0;padding:30px 24px}.mk-trust-grid a{margin-top:26px;padding-top:0}.mk-final-cta{padding-block:72px}.mk-footer-top,.mk-footer-bottom{flex-direction:column;align-items:flex-start}.rules-hero{background-image:linear-gradient(90deg,#f6f7f5f5,#f6f7f5c7),url(/product/back-hero.webp);background-position:44%;padding-block:54px 48px}.rules-hero h1{font-size:2.8rem}.rules-opening{margin-top:28px;font-size:1.03rem}.rules-section{grid-template-columns:1fr;gap:12px;padding-block:42px}.rules-section--image-left{margin-inline:-16px;padding:36px 16px 46px}.rules-section--image-right{padding:42px 0}.rules-section--illustrated .rules-section-visual,.rules-section--illustrated .rules-section-content{grid-column:1}.rules-section--illustrated .rules-section-visual{max-width:none}.rules-section--image-left .rules-section-visual:before{inset:10px -8px -10px 8px}.rules-section--image-right .rules-section-visual:before{inset:10px 8px -10px -8px}.rules-section--image-right .rules-section-content{grid-row:2}.rules-section--image-right .rules-section-visual{grid-row:3}.rules-section--background{margin-inline:0;background-image:linear-gradient(90deg, #f7f7f3fa, #f7f7f3cc), var(--rules-section-image);grid-template-columns:1fr;gap:18px;margin-bottom:-72px;padding:52px 16px 64px}.rules-index{padding-top:0}.rules-source{flex-direction:column;align-items:flex-start;gap:7px}}