@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');
:root{--paper:#f3f0e6;--ink:#243a36;--gold:#edcc95}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:85px}body{margin:0;background:#344d57;color:var(--paper);font-family:'DM Sans',sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid #e8b669;outline-offset:6px}button{color:inherit}::selection{background:#cbb380;color:#243a36}.skip{position:fixed;top:-80px;left:20px;background:var(--paper);color:var(--ink);padding:16px;z-index:100}.skip:focus{top:15px}.scene{position:fixed;inset:0;z-index:0;pointer-events:none;background:linear-gradient(#a76d46 0%,#bc895f 24%,#a1ad94 25%,#657564 100%)}.opening-poster,.opening-poster img,#flight{position:absolute;inset:0;display:block;width:100%;height:100%}.opening-poster img{object-fit:cover}.opening-poster{opacity:1;transition:opacity 0s .45s}#flight{opacity:0;transition:opacity .45s ease}.scene-ready #flight{opacity:1}.scene-ready .opening-poster{opacity:0}.scene.failed #flight{display:none}@media(prefers-reduced-motion:reduce){.opening-poster,#flight{transition:none}}.cinema-shade{position:fixed;inset:0;pointer-events:none;z-index:1;background:linear-gradient(90deg,#152a37a6 0,#152a3733 43%,transparent 75%),linear-gradient(#10243022,transparent 25%,transparent 70%,#10243055)}header{position:fixed;top:0;left:0;right:0;height:100px;padding:0 5%;display:flex;align-items:center;gap:24px;z-index:30;transition:color .4s,background .4s}.brand{font:800 42px/1 'Manrope',sans-serif;letter-spacing:-4px}.brand span{font-size:25px;vertical-align:top;letter-spacing:0;margin-left:6px}nav{display:flex;gap:35px;align-items:center;margin-left:auto;font-size:12px}.nav-cta{padding:14px 20px;border:1px solid #f3f0e660;border-radius:100px}.motion{border:1px solid #f3f0e660;border-radius:50%;background:none;height:32px;width:32px;font-size:11px}.chapter{height:145svh;position:relative}.chapter:last-child{height:150svh}.chapter-copy{position:relative;padding:180px 7% 80px;max-width:800px}.enhanced .chapter-copy{position:fixed;top:25vh;left:7%;padding:0;width:580px;max-width:48%;z-index:4;opacity:0;pointer-events:none;will-change:opacity,transform}.enhanced .chapter-copy.active{pointer-events:auto}.eyebrow{font-size:9px;letter-spacing:2px;font-weight:500;line-height:1.7;margin:0 0 30px}.status-dot{display:inline-block;height:5px;width:5px;background:#edcc95;border-radius:50%;margin:0 9px 2px 0;box-shadow:0 0 0 4px #edcc9514}h1,h2{font-family:'Manrope',sans-serif;font-weight:400;letter-spacing:-.06em;line-height:1.03;margin:0 0 30px}h1{font-size:clamp(64px,6.6vw,110px)}h2{font-size:clamp(58px,5.8vw,94px)}em{font-family:Georgia,serif;font-weight:400;letter-spacing:-.055em}.description{font-size:15px;line-height:1.9;opacity:.85;max-width:350px;margin-top:26px}.story-link{display:inline-flex;align-items:center;gap:40px;font-size:12px;padding:14px 0;border:0;border-bottom:1px solid #f3f0e655;background:none;margin-top:15px}.story-link span{font-size:20px}.scene-note{display:block;font-size:8px;opacity:.5;margin-top:17px}.enhanced .final-copy{top:21vh;text-align:center;left:20%;max-width:60%;width:60%}.final-copy h2{font-size:clamp(60px,7vw,110px)}.final-copy .description{margin:15px auto}.pill{display:inline-flex;align-items:center;gap:50px;background:#e6c58e;color:#243a36;border-radius:100px;padding:20px 27px;font-size:12px;margin-top:18px}.flight-progress{position:fixed;right:30px;top:50%;transform:translateY(-50%);display:flex;align-items:center;flex-direction:column;gap:20px;z-index:10;transition:opacity .3s}.flight-progress>span:first-child{writing-mode:vertical-rl;font-size:7px;letter-spacing:2px}.progress-rail{height:110px;width:1px;background:#f3f0e644;position:relative}.progress-rail span{position:absolute;top:0;left:0;width:2px;height:100%;background:#edcc95;transform-origin:top;transform:scaleY(0)}#chapter-index{font-size:8px;letter-spacing:1px}.flight-caption{position:fixed;left:5%;right:5%;bottom:35px;z-index:6;display:flex;justify-content:space-between;font-size:8px;letter-spacing:1.7px;pointer-events:none;transition:opacity .3s}.flight-caption b{font-size:17px;margin-left:15px;font-weight:400}.platform{position:relative;z-index:8;background:var(--paper);color:var(--ink);padding:140px 7% 0}.platform-heading{display:grid;grid-template-columns:1.4fr 1fr;gap:9%;align-items:end}.platform-heading h2{font-size:clamp(52px,5.4vw,85px)}.platform-heading>p{font-size:15px;line-height:1.9;max-width:340px;padding-bottom:22px;opacity:.75}.subject-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:60px}.subject-grid>button{display:flex;flex-direction:column;text-align:left;border:1px solid #243a362b;padding:30px;background:transparent;min-height:350px;transition:background .2s,transform .2s}.subject-grid>button:hover{background:#e7e9dc;transform:translateY(-4px)}.subject-number{font-size:8px;letter-spacing:1.4px}.subject-symbol{font-size:64px;line-height:1.3;font-weight:400;margin:32px 0 12px;color:#6d8d7b}.subject-grid h3{font:500 26px 'Manrope',sans-serif;letter-spacing:-1px;margin:0 0 15px}.subject-grid p{font-size:13px;line-height:1.8;margin:0 0 30px;max-width:240px;opacity:.75}.subject-action{font-size:10px;margin-top:auto}.practice-preview{display:grid;grid-template-columns:1fr 1fr;gap:12%;align-items:center;padding:140px 0}.practice-preview h3{font:400 clamp(42px,4.2vw,68px)/1.06 'Manrope',sans-serif;letter-spacing:-3px;margin:0 0 25px}.practice-preview>div>p:not(.eyebrow){font-size:14px;line-height:1.9;max-width:320px;opacity:.7}.question-card{background:#fffdf5;border:1px solid #243a3622;padding:35px}.question-card h4{font-size:18px;font-weight:500;line-height:1.6;margin:25px 0}.answers{display:grid;gap:10px}.answers button{border:1px solid #243a3633;background:none;text-align:left;padding:16px;font-size:11px;display:flex;gap:16px}.answers button:hover:not(:disabled){background:#e6ebdc}.answers button.correct{background:#dce8c9;border-color:#82996b}.answers button.wrong{background:#eddbcc;border-color:#b68b6a}.feedback{font-size:12px;line-height:1.8;padding:18px 0;border-bottom:1px solid #243a3622}.retry{background:none;border:0;border-bottom:1px solid #243a3644;padding:8px 0;font-size:11px;margin-top:14px}.fine-print{font-size:9px!important;line-height:1.7!important;opacity:.6}.platform-end{display:flex;align-items:center;justify-content:space-between;padding:50px 0;border-top:1px solid #243a3633}.platform-end p{font:400 38px/1.2 'Manrope',sans-serif;letter-spacing:-1.5px}.platform-end a{font-size:12px;border-bottom:1px solid;padding-bottom:10px}footer{position:relative;z-index:8;background:#203932;padding:50px 7%;display:flex;gap:40px;align-items:center}footer p{font-size:10px;line-height:1.8;opacity:.65}footer>a:last-child{font-size:10px;margin-left:auto}.on-platform header{color:var(--ink);background:#f3f0e6ed;backdrop-filter:blur(12px)}.on-platform .motion,.on-platform .nav-cta{border-color:#243a3655}.on-platform .flight-caption,.on-platform .flight-progress{opacity:0;pointer-events:none}dialog{border:0;border-radius:4px;background:var(--paper);color:var(--ink);padding:48px;width:calc(100% - 32px);max-width:600px;max-height:88svh}dialog::backdrop{background:#122a32c9;backdrop-filter:blur(12px)}dialog h2{font-size:43px}dialog p{font-size:14px;line-height:1.8}dialog .eyebrow{font-size:8px}.close{position:absolute;right:15px;top:14px;background:none;border:0;padding:8px}dialog label{display:block;font-size:12px;margin-top:25px}dialog output{float:right}dialog input{width:100%;margin:18px 0;accent-color:#456e5b}.wind-values{display:flex;justify-content:space-between;padding:20px 0;border-top:1px solid #243a3622;font-size:12px}.wind-values strong{font-size:24px;display:block;margin-top:8px}.lesson-illustration{border-top:1px solid #243a3622;border-bottom:1px solid #243a3622;padding:25px 0;display:flex;justify-content:space-around;font-size:12px;margin:25px 0}.lesson-illustration b{font-size:27px;font-weight:400}.load-note{font-size:10px}
@media(max-width:760px){header{height:80px;padding:0 6%;gap:12px}.brand{font-size:35px}nav{gap:0}nav>a:not(.nav-cta){display:none}.nav-cta{font-size:9px;padding:12px 14px}.motion{width:29px;height:29px;flex-shrink:0}.chapter{height:140svh}.chapter:last-child{height:145svh}.enhanced .chapter-copy{top:19vh;left:7%;width:86%;max-width:86%}.eyebrow{font-size:7px;letter-spacing:1.5px;margin-bottom:24px}h1{font-size:clamp(44px,11vw,68px)}h2{font-size:clamp(44px,11vw,68px)}.description{font-size:12px;line-height:1.8;max-width:270px;margin-top:20px}.story-link{font-size:10px;margin-top:8px;padding:10px 0;gap:30px}.scene-note{font-size:7px}.enhanced .final-copy{top:19vh;left:7%;max-width:86%;width:86%}.final-copy h2{font-size:50px}.pill{padding:17px 22px;font-size:11px}.flight-progress{right:12px;gap:15px}.flight-progress>span:first-child{display:none}.progress-rail{height:70px}.flight-caption{bottom:24px;font-size:6px;letter-spacing:1px;gap:25px}.flight-caption span:first-child{max-width:170px}.platform{padding:90px 7% 0}.platform-heading{display:block}.platform-heading h2{font-size:46px}.platform-heading>p{font-size:13px;margin-top:30px}.subject-grid{grid-template-columns:1fr;margin-top:30px;gap:15px}.subject-grid>button{min-height:260px;padding:25px}.subject-symbol{font-size:45px;margin:20px 0 10px}.subject-grid h3{font-size:24px}.practice-preview{grid-template-columns:1fr;gap:40px;padding:85px 0}.practice-preview h3{font-size:48px}.question-card{padding:25px 20px}.platform-end{display:block;padding:30px 0 45px}.platform-end p{font-size:32px}.platform-end a{font-size:10px}footer{flex-wrap:wrap;gap:24px}footer p{font-size:9px;max-width:240px}footer>a:last-child{margin-left:0}dialog{padding:40px 24px}dialog h2{font-size:34px}.cinema-shade{background:linear-gradient(#152a3766,transparent 75%),linear-gradient(90deg,#152a3755,transparent)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
