:root{--navy:#172747;--ink:#26364e;--muted:#657080;--gold:#efc35f;--paper:#f8f6f0;--line:#e8e7e1;--rose:#c56b57;--teal:#638b82;--white:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--white);color:var(--ink);font:16px/1.85 var(--font-ui)}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer}img{max-width:100%;height:auto}h1,h2,h3,p{margin-top:0}h1,h2,.brand,.footer-brand{font-family:var(--font-ui);color:var(--navy)}h1{font-size:clamp(36px,4.25vw,64px);line-height:1.4;font-weight:700;letter-spacing:-1.5px;margin-bottom:24px}h2{font-size:clamp(28px,3vw,40px);line-height:1.55;font-weight:700;letter-spacing:-.6px;margin-bottom:16px}h3{font-size:20px;line-height:1.6;color:var(--navy);margin-bottom:10px}p{margin-bottom:18px}.skip{position:fixed;top:-100px;left:20px;background:var(--navy);color:white;padding:12px;z-index:30}.skip:focus{top:10px}:focus-visible{outline:3px solid var(--rose);outline-offset:5px}.header{position:sticky;top:0;background:#ffffffed;backdrop-filter:blur(16px);border-bottom:1px solid var(--line);z-index:10}.header-inner{max-width:1280px;margin:auto;display:flex;align-items:center;gap:38px;padding:20px 40px}.brand{font-size:16px;line-height:1.5;font-weight:700;display:flex;gap:12px;align-items:center;white-space:nowrap}.brand-mark{background:var(--navy);color:var(--gold);font:italic 32px/1.3 Georgia,serif;border-radius:12px;padding:3px 14px}.brand strong{font-weight:700;font-size:19px}nav{display:flex;gap:6px;margin-left:auto}nav a{font-size:14px;white-space:nowrap;padding:9px 13px;border-radius:8px;font-weight:700}nav a:hover{background:var(--paper)}nav a[aria-current=page]{color:white;background:var(--navy)}.header-cta{font-size:14px;font-weight:700;white-space:nowrap;border-bottom:2px solid var(--gold);padding:6px 0}.header-cta span{margin-left:6px}.container{max-width:1160px;margin:auto;padding:0 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@media(min-width:1500px){.hero{padding-top:90px;padding-bottom:80px}}
@media(max-width:1050px){.header-inner{padding:16px 25px;gap:20px}nav a{padding:8px 9px;font-size:13px}.header-cta{display:none}.hero{gap:20px}.topic-card{padding:24px}.lesson-layout{gap:28px}.pillar{padding:5px 10px;gap:12px}}
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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}