:root{--ink:#17223b;--paper:#f6f5f0;--white:#fffefb;--line:#dedfd9;--muted:#697286;--coral:#c13b2f;--purple:#8067e8;--mint:#62d6b1;font-family:Inter,Avenir,"Helvetica Neue",ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--paper)}button,input{font:inherit}a{color:inherit;text-decoration:none}h1,h2,h3,p{margin-top:0}.public-header{position:sticky;top:0;z-index:20;min-height:72px;display:flex;align-items:center;gap:28px;padding:0 max(24px,calc((100vw - 1280px)/2));background:rgba(246,245,240,.94);border-bottom:1px solid rgba(23,34,59,.1);backdrop-filter:blur(13px)}.brand{display:flex;align-items:center;gap:10px;margin-right:auto;font-size:18px;font-weight:700}.brand-mark{width:30px;height:30px;display:flex;align-items:center;justify-content:center;gap:2px;background:var(--ink);border-radius:9px}.brand-mark i{width:3px;background:var(--coral);border-radius:4px}.brand-mark i:nth-child(1){height:9px}.brand-mark i:nth-child(2){height:17px}.brand-mark i:nth-child(3){height:12px}.public-header nav{display:flex;gap:25px}.public-header nav a{color:#566177;font-size:13px;font-weight:700}.header-button,.button{min-height:41px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 16px;color:white;background:var(--ink);border:0;border-radius:9px;font-size:12px;font-weight:800}.button.coral{background:var(--coral)}.button.light{color:var(--ink);background:white;border:1px solid var(--line)}.hero{padding:70px max(24px,calc((100vw - 1280px)/2)) 45px}.hero-grid{display:grid;grid-template-columns:1fr 400px;align-items:end;gap:65px}.kicker{margin-bottom:16px;color:#6c7688;font-size:10px;font-weight:800;letter-spacing:.16em}.hero h1{margin-bottom:18px;font-size:clamp(44px,5.8vw,78px);line-height:1;letter-spacing:-.065em}.hero h1 em{color:var(--coral);font-style:normal}.hero p{max-width:720px;color:var(--muted);font-size:17px;line-height:1.65}.hero-aside{padding:20px;background:var(--ink);border-radius:16px;color:white}.hero-aside p{margin:0;color:#b5c0d0;font-size:12px}.hero-aside strong{display:block;margin-bottom:7px;font-size:17px}.content{padding:0 max(24px,calc((100vw - 1280px)/2)) 70px}.tabs{display:flex;gap:7px;margin-bottom:22px;padding:5px;background:#ebe9e3;border-radius:11px;overflow:auto}.tabs button{min-width:max-content;min-height:38px;padding:0 15px;color:#687286;background:transparent;border:0;border-radius:8px;font-size:11px;font-weight:800}.tabs button.active{color:var(--ink);background:white;box-shadow:0 3px 10px rgba(25,35,55,.07)}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin:33px 0 15px}.section-head h2{margin:0;font-size:24px;letter-spacing:-.04em}.section-head p{margin:5px 0 0;color:var(--muted);font-size:12px}.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.video-card{overflow:hidden;background:white;border:1px solid var(--line);border-radius:14px}.video-card video{width:100%;aspect-ratio:16/9;display:block;background:var(--ink)}.video-copy{padding:15px}.video-copy h3{margin-bottom:5px;font-size:14px}.video-copy p{margin:0;color:var(--muted);font-size:10px;line-height:1.5}.lesson-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.lesson-card{min-height:160px;display:flex;flex-direction:column;padding:16px;text-align:left;background:white;border:1px solid var(--line);border-radius:13px}.lesson-card:hover{border-color:var(--purple);box-shadow:0 10px 28px rgba(35,45,68,.09)}.lesson-card span{width:34px;height:34px;display:grid;place-items:center;color:white;background:var(--purple);border-radius:9px;font-size:11px;font-weight:800}.lesson-card h3{margin:14px 0 5px;font-size:13px}.lesson-card p{margin:0;color:var(--muted);font-size:10px;line-height:1.45}.lesson-card small{margin-top:auto;padding-top:12px;color:#8c94a2;font-size:8px;font-weight:800;letter-spacing:.08em}.lesson-card.hidden{display:none}.page-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.feature-card{min-height:220px;padding:23px;background:white;border:1px solid var(--line);border-radius:15px}.feature-icon{width:44px;height:44px;display:grid;place-items:center;margin-bottom:25px;color:white;background:var(--purple);border-radius:12px;font-size:20px}.feature-card:nth-child(3n+2) .feature-icon{color:var(--ink);background:var(--mint)}.feature-card:nth-child(3n+3) .feature-icon{background:var(--coral)}.feature-card h2{margin-bottom:8px;font-size:17px}.feature-card p{color:var(--muted);font-size:11px;line-height:1.55}.feature-card ul{padding-left:16px;color:#4f5a70;font-size:10px;line-height:1.7}.support-grid{display:grid;grid-template-columns:320px 1fr;gap:18px}.support-nav,.support-detail{padding:20px;background:white;border:1px solid var(--line);border-radius:14px}.support-nav button{width:100%;min-height:42px;padding:0 11px;text-align:left;color:#5c6679;background:transparent;border:0;border-radius:8px;font-size:11px;font-weight:700}.support-nav button.active{color:var(--ink);background:#eeebfa}.support-detail h2{font-size:22px}.steps{display:grid;gap:10px;counter-reset:step}.step{display:grid;grid-template-columns:35px 1fr;gap:11px;padding:12px;background:#f6f5f1;border-radius:10px}.step::before{counter-increment:step;content:counter(step);width:30px;height:30px;display:grid;place-items:center;color:white;background:var(--purple);border-radius:8px;font-size:10px;font-weight:800}.step b,.step small{display:block}.step b{font-size:11px}.step small{margin-top:3px;color:var(--muted);font-size:9px;line-height:1.5}.callout{margin-top:14px;padding:13px;color:#6b5320;background:#fff1c9;border:1px solid #e8d086;border-radius:9px;font-size:10px;line-height:1.55}.lesson-dialog{width:min(92vw,720px);max-height:88vh;padding:0;border:0;border-radius:17px;box-shadow:0 28px 80px rgba(18,27,46,.3)}.lesson-dialog::backdrop{background:rgba(17,25,43,.62);backdrop-filter:blur(4px)}.lesson-body{padding:28px}.lesson-dialog header{display:flex;justify-content:space-between;gap:20px}.lesson-dialog header span{color:var(--coral);font-size:10px;font-weight:800;letter-spacing:.12em}.close{width:34px;height:34px;background:#f0efea;border:0;border-radius:9px}.transcript{max-height:160px;overflow:auto;margin-top:15px;padding:13px;color:#526077;background:#f6f5f1;border-radius:9px;font-size:10px;line-height:1.7}.footer{min-height:80px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 max(24px,calc((100vw - 1280px)/2));color:#7c8595;border-top:1px solid var(--line);font-size:10px}.footer span:last-child{display:flex;gap:19px}
@media(max-width:1000px){.hero-grid{grid-template-columns:1fr}.hero-aside{max-width:500px}.lesson-grid{grid-template-columns:repeat(3,1fr)}.page-cards{grid-template-columns:repeat(2,1fr)}}@media(max-width:760px){.public-header{min-height:108px;flex-wrap:wrap;padding-top:12px;padding-bottom:10px}.public-header nav{order:3;width:100%;display:flex;justify-content:center;gap:22px}.hero{padding-top:45px}.hero h1{font-size:49px}.video-grid,.page-cards{grid-template-columns:1fr}.lesson-grid{grid-template-columns:repeat(2,1fr)}.support-grid{grid-template-columns:1fr}.support-nav{display:flex;overflow:auto;padding:7px}.support-nav button{min-width:max-content}.footer{padding:18px 20px;flex-direction:column;justify-content:center}}@media(max-width:480px){.public-header{padding:0 15px}.header-button{padding:0 11px}.lesson-grid{grid-template-columns:1fr}.lesson-card{min-height:140px}.hero h1{font-size:43px}.section-head{align-items:flex-start;flex-direction:column}}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(128,103,232,.42);outline-offset:3px}.spaced-aside{margin-top:18px}.spaced-button{margin-top:14px}.support-intro{color:#526077;font-size:12px;line-height:1.6}.transcript-title{margin:20px 0 8px;font-size:13px}
:root{--muted:#48546b}.support-intro{color:#3f4c63;font-size:13px}.lesson-card small,.video-copy p,.feature-card p,.feature-card ul,.step small,.callout,.transcript,.footer{font-size:max(10px,.67rem)}
@media(max-width:760px){.support-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;overflow:visible;padding:7px}.support-nav button{min-width:0;height:auto;min-height:48px;padding:8px;text-align:center;line-height:1.25}.support-nav button.active{box-shadow:inset 0 0 0 2px rgba(128,103,232,.35)}}
@media(max-width:380px){.support-nav{grid-template-columns:1fr}}