/* The Portal's existing palette, typography and a. mark; a public editorial layout. */
:root{color-scheme:dark;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Helvetica Neue",sans-serif;background:#101012;color:#f5f5f7;font-synthesis:none;-webkit-font-smoothing:antialiased;--surface:#1c1c1e;--muted:#a1a1aa;--accent:#0a84ff;--line:#ffffff12}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0}a{color:inherit;text-decoration:none}a:focus-visible{outline:3px solid #8dc4ff;outline-offset:5px;border-radius:5px}p,h1,h2,h3,h4{margin:0}p{line-height:1.7;color:var(--muted)}.public-shell{width:min(1120px,100% - 80px);margin-inline:auto;min-width:0}.public-header{position:sticky;top:0;z-index:5;border-bottom:1px solid var(--line);background:#101012f5;padding-top:env(safe-area-inset-top)}.header-inner{min-height:86px;display:flex;align-items:center;justify-content:space-between;gap:30px}.public-brand{display:inline-flex;align-items:center;gap:12px;min-height:44px;font-size:15px;font-weight:600;min-width:0}.public-mark{width:36px;height:36px;flex:none;background:#303034;border-radius:11px;display:grid;place-items:center;font-size:27px;font-weight:600;letter-spacing:-2px;padding-right:2px}.header-inner nav{display:flex;gap:24px}.header-inner nav a{display:inline-flex;align-items:center;min-height:44px;font-size:13px;color:#b1b1bb}.header-inner nav a:hover,.text-link:hover,.contact-email:hover{color:#8dc4ff}.skip-link{min-height:44px;position:fixed;top:-100px;left:20px;z-index:10;background:var(--accent);padding:12px 20px;border-radius:10px}.skip-link:focus{top:12px}.hero{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,.8fr);gap:70px;align-items:center;padding:100px 0 110px}.eyebrow,.section-label{font-size:10px;font-weight:600;letter-spacing:2px;color:#a1a1ab;line-height:1.6}.hero h1{font-size:clamp(42px,5.6vw,72px);line-height:1.08;font-weight:600;letter-spacing:-3px;margin:24px 0 26px}.hero h1 span{color:#b3b3bc}.hero-intro{max-width:560px;font-size:17px;line-height:1.8}.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:20px;margin-top:32px}.public-button{min-height:48px;padding:14px 19px;display:inline-flex;justify-content:center;align-items:center;gap:24px;background:#0874df;border-radius:13px;font-size:14px;font-weight:600;color:#fff;line-height:1.4}.public-button:hover{background:#0067ce}.text-link{display:inline-flex;align-items:center;gap:12px;min-height:44px;font-size:13px;color:#c3c3cc}.hero-details{display:flex;flex-wrap:wrap;gap:16px;margin-top:26px;font-size:11px;color:#a1a1ab}.hero-details span{display:flex;align-items:center;gap:8px}.hero-details span:before{content:"";width:3px;height:3px;border-radius:50%;background:#777783}.hero-note{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:28px;min-width:0}.note-top{display:flex;gap:9px;align-items:center;color:#aaaab4;font-size:9px;letter-spacing:1.5px;font-weight:600}.blue-dot{width:6px;height:6px;flex:none;border-radius:50%;background:#0a84ff}.note-heading{font-size:19px;line-height:1.5;color:#e2e2e8;letter-spacing:-.4px;margin-top:25px}.math-example{display:grid;gap:12px;margin:28px 0;font-size:23px;line-height:1.3;letter-spacing:-.6px;font-variant-numeric:tabular-nums}.math-example>span{color:#a1a1ad}.math-example>span:first-child{color:#c2c2cd}.math-example strong{font-weight:500;color:#80baff}.math-example strong span{font-size:16px;margin-left:12px}.note-footer{font-size:11px;padding-top:18px;border-top:1px solid var(--line)}.public-section{border-top:1px solid var(--line);padding:74px 0;scroll-margin-top:30px}.about-section{display:grid;grid-template-columns:minmax(0,.6fr) minmax(0,1.4fr);gap:80px}.about-section>.section-label{padding-top:9px}h2{font-size:clamp(27px,3vw,36px);line-height:1.2;letter-spacing:-1.1px;font-weight:500;text-wrap:balance}.body-copy{font-size:15px;max-width:620px;margin-top:22px}.body-copy+.body-copy{margin-top:14px}.section-heading .section-label{margin-bottom:18px}.section-heading>p:last-child{font-size:14px;margin-top:18px}.support-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 50px;margin-top:40px}.support-item{display:flex;gap:20px;padding:25px 0;border-bottom:1px solid var(--line);min-width:0}.item-number{font-size:11px;line-height:1.8;color:#88ade0;font-variant-numeric:tabular-nums}.support-item h3{font-weight:500;font-size:17px;letter-spacing:-.3px}.support-item p{font-size:13px;line-height:1.7;margin-top:9px;max-width:390px}.approach{margin-top:64px}.approach>h3{font-size:21px;font-weight:500;letter-spacing:-.5px}.approach ol{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;list-style:none;counter-reset:steps;padding:0;margin:32px 0 0}.approach li{counter-increment:steps;border-top:1px solid #ffffff24;padding-top:15px}.approach li:before{content:"0" counter(steps);color:#a1a1ad;font-size:11px}.approach h4{font-size:15px;font-weight:500;margin:14px 0 9px}.approach li p{font-size:12px}.formats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:60px}.formats article{padding:28px;background:var(--surface);border:1px solid var(--line);border-radius:18px}.formats h3{font-size:23px;letter-spacing:-.5px;font-weight:500;margin:19px 0 15px}.formats article>p:last-child{font-size:13px}.pricing-section{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:90px;align-items:center}.pricing-section h2{margin-top:18px;max-width:400px}.price-block{border-left:1px solid #ffffff24;padding:10px 0 10px 42px}.price-block>span{color:#aaaab6;font-size:13px}.price{margin:14px 0;color:#f5f5f7;font-size:46px;letter-spacing:-1.6px;line-height:1.2;font-weight:500;white-space:nowrap}.price>span{font-size:16px;letter-spacing:-.3px;color:#a1a1aa;font-weight:400}.contact-section{margin-bottom:74px;padding:48px;border:1px solid #36506a;background:#181d24;border-radius:22px;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:60px;align-items:center;scroll-margin-top:115px}.contact-section h2{margin-top:18px}.contact-actions{display:flex;flex-direction:column;align-items:flex-start;gap:15px;min-width:0}.contact-actions .public-button{min-width:180px}.contact-email{display:inline-flex;align-items:center;min-height:44px;font-size:14px;overflow-wrap:anywhere;max-width:100%}.contact-actions p{font-size:11px}.public-footer{border-top:1px solid var(--line);padding:28px 0 max(28px,env(safe-area-inset-bottom))}.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:24px}.public-footer .public-brand{font-size:13px}.public-brand small{display:block;font-size:11px;font-weight:400;color:#a1a1ad;margin-top:5px}.public-footer .text-link{color:#a1a1ad;font-size:12px}
@media(max-width:900px){.public-shell{width:calc(100% - 48px)}.hero{gap:35px;padding:70px 0 80px;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr)}.hero h1{font-size:clamp(36px,5.5vw,52px);letter-spacing:-2px}.hero-intro{font-size:15px}.hero-note{padding:22px}.note-heading{font-size:17px}.hero-actions{gap:12px}.header-inner nav{gap:16px}.about-section{gap:40px;grid-template-columns:minmax(0,.6fr) minmax(0,1.4fr)}.approach ol{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 35px}.pricing-section{gap:35px}.price-block{padding-left:24px}.price{font-size:38px}.price>span{font-size:14px}.contact-section{padding:32px;gap:30px}}
@media(max-width:600px){html{scroll-padding-top:115px}.public-shell{width:calc(100% - 36px)}.header-inner{min-height:0;display:block;padding:10px 0 5px}.public-brand{font-size:13px;gap:10px}.public-mark{width:32px;height:32px;font-size:24px;border-radius:10px}.header-inner nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin-top:2px}.header-inner nav a{justify-content:center;min-height:44px;font-size:12px}.hero{grid-template-columns:1fr;gap:32px;padding:48px 0 50px}.hero h1{font-size:clamp(34px,9vw,48px);letter-spacing:-1.7px;margin:20px 0}.hero-intro{font-size:15px;line-height:1.75}.hero-actions{gap:10px 16px;margin-top:25px}.public-button{font-size:13px;min-height:48px;padding:13px 16px}.hero-actions .text-link{font-size:12px}.hero-details{gap:10px 14px;margin-top:18px;font-size:10px}.hero-note{padding:22px;border-radius:18px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.75fr);gap:14px 20px;align-items:center}.note-top{grid-column:1/-1;font-size:9px;letter-spacing:1.2px}.note-heading{font-size:17px;margin:0}.math-example{font-size:19px;gap:8px;margin:4px 0}.math-example>span:nth-child(2),.math-example>span:nth-child(3){display:none}.note-footer{grid-column:1/-1;font-size:10px;padding-top:13px}.public-section{padding:46px 0;scroll-margin-top:25px}.about-section{grid-template-columns:1fr;gap:18px}.about-section>.section-label{padding:0}h2{font-size:28px;letter-spacing:-.8px}.body-copy{font-size:14px;margin-top:18px}.section-heading .section-label{margin-bottom:16px}.section-heading>p:last-child{font-size:13px;margin-top:15px}.support-grid{grid-template-columns:1fr;margin-top:20px}.support-item{gap:16px;padding:20px 0}.support-item h3{font-size:16px}.support-item p{font-size:13px;margin-top:7px}.approach{margin-top:38px}.approach>h3{font-size:20px}.approach ol{gap:24px 20px;margin-top:24px}.approach h4{font-size:14px}.approach li p{font-size:12px}.formats{grid-template-columns:1fr;gap:12px;margin-top:36px}.formats article{padding:24px;border-radius:16px}.formats h3{font-size:21px;margin:15px 0 12px}.pricing-section{grid-template-columns:1fr;gap:24px}.price-block{border-left:0;border-top:1px solid var(--line);padding:24px 0 0}.price{font-size:43px}.price>span{font-size:16px}.contact-section{padding:27px 23px;border-radius:18px;grid-template-columns:1fr;gap:26px;margin-bottom:44px;scroll-margin-top:130px}.contact-section h2{font-size:27px}.contact-actions .public-button{width:100%}.contact-email{font-size:13px}.footer-inner{align-items:flex-start;gap:16px;flex-wrap:wrap}.public-footer{padding-top:22px}.eyebrow,.section-label{letter-spacing:1.6px}.public-shell{padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}}
@media(max-width:350px){.public-shell{width:calc(100% - 28px)}.hero h1{font-size:33px}.hero-note{gap:13px;padding:18px}.note-heading{font-size:15px}.math-example{font-size:17px}.contact-section{padding:24px 18px}.price{font-size:39px}.price>span{font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Public subjects, approved testimonials and native FAQ controls. */
.hero h1{font-size:clamp(38px,4.7vw,60px);overflow-wrap:normal}.subject-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:34px}.subject-grid article{padding:28px;border:1px solid var(--line);border-radius:18px;background:var(--surface);min-width:0}.subject-grid h3{font-size:24px;font-weight:500;letter-spacing:-.6px}.subject-grid p{font-size:14px;margin-top:14px}.support-heading{font-size:21px;font-weight:500;margin-top:44px}.support-grid{margin-top:18px}.testimonial-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:30px}.testimonial{margin:0;padding:28px;background:var(--surface);border:1px solid var(--line);border-radius:18px;min-width:0;overflow-wrap:anywhere}.testimonial blockquote{margin:0}.testimonial blockquote p{font-size:17px;color:#e4e4eb}.testimonial figcaption{margin-top:24px;font-size:14px;font-weight:600}.testimonial figcaption span{display:block;margin-top:5px;font-size:12px;font-weight:400;color:var(--muted)}.review-invitation{margin-top:24px;max-width:650px}.review-invitation>p{font-size:14px}.review-invitation .text-link{margin-top:12px}.review-invitation .review-note{font-size:12px;margin-top:12px}.faq-list{margin-top:28px;max-width:800px}.faq-list details{border-bottom:1px solid var(--line);padding:5px 0}.faq-list summary{min-height:52px;padding:15px 0;cursor:pointer;font-size:15px;line-height:1.5}.faq-list summary:focus-visible{outline:3px solid #8dc4ff;outline-offset:4px;border-radius:5px}.faq-list details p{font-size:14px;padding:0 0 20px}.pricing-section{padding-bottom:64px}.faq-section{padding-top:54px}.contact-section{margin-top:12px}
@media(max-width:900px){.hero h1{font-size:clamp(34px,4.5vw,48px)}.subject-grid{gap:18px}.subject-grid article{padding:24px}}
@media(max-width:600px){.hero h1{font-size:clamp(33px,9vw,46px)}.subject-grid,.testimonial-grid{grid-template-columns:1fr;gap:14px;margin-top:24px}.subject-grid article,.testimonial{padding:24px}.subject-grid h3{font-size:22px}.subject-grid p{font-size:13px}.support-heading{font-size:20px;margin-top:32px}.testimonial blockquote p{font-size:15px}.faq-list summary{font-size:14px}.faq-list details p{font-size:13px}.pricing-section{padding-bottom:46px}.faq-section{padding-top:46px}}