/* Observatory composition: approved sky, generated art and exact reusable geometry. */
.observatory{--ink:#f3ede0;--gold:#dfc390;--teal:#9dd6e7}.observatory .wrap{max-width:none;padding:0}.observatory #sky{opacity:.55}.observatory main{position:relative;z-index:0}.observatory main:before{display:none}.observatory .header{position:absolute;z-index:4;top:0;left:4.2%;right:4.2%;min-height:90px;border-bottom:1px solid #d5d7cc55}.observatory .brand{font-size:29px}.observatory nav{gap:28px}.observatory nav a{font-family:var(--serif);font-size:16px;color:var(--ink)}.observatory .sky-toggle{font-size:10px;color:#bbc8c7;border-left:1px solid var(--line);padding-left:18px}.hero-scene{position:relative;min-height:790px;height:88svh;max-height:1060px;overflow:hidden}.hero-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center top;z-index:-1}.hero-copy{position:absolute;top:32%;left:4.2%;width:43%;max-width:700px}.hero-copy h1{font:400 clamp(44px,4.9vw,80px)/1.06 var(--serif);letter-spacing:-.035em;margin-bottom:24px}.hero-subtitle{font:italic clamp(22px,2.5vw,39px)/1.2 var(--serif);letter-spacing:-.02em;color:var(--ink);max-width:610px}.hero-cta{margin-top:20px;border-color:#efeadd;color:var(--ink);font:20px var(--serif);padding:15px 23px;border-radius:0;background:#03060955}.hero-note{font:16px/1.65 var(--serif);margin-top:28px;color:#d0d4d2}.hero-equation{position:absolute;right:5.2%;bottom:5%;width:48%;text-align:center}.hero-equation math{font-size:clamp(22px,2.3vw,37px);color:#f2e7d3}.hero-equation p{font:italic 14px var(--serif);margin-top:16px;color:#cecbbf}.chapter-nav{margin:0 4.2%;display:grid;grid-template-columns:repeat(3,1fr);padding:35px 0;border-top:1px solid #a3aba477;border-bottom:1px solid var(--line);position:relative;background:#02060999}.chapter-nav a{display:flex;align-items:center;gap:32px;padding:0 30px;text-decoration:none;border-right:1px solid var(--line)}.chapter-nav a:first-child{padding-left:0}.chapter-nav a:last-child{border:0}.chapter-nav a>span{font:48px var(--serif);color:var(--gold)}.chapter-nav a>div{font:26px var(--serif)}.chapter-nav small{display:block;font:11px var(--sans);color:var(--muted);margin-top:10px}.chapter-nav b{font-size:17px;font-weight:400;margin-left:auto}.scene-section{padding:110px 6%;position:relative;background:#04080ded;border-bottom:1px solid var(--line)}.section-index{font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:28px}.scene-top{display:flex;align-items:flex-end;justify-content:space-between;gap:60px}.scene-top h2{font-size:clamp(38px,4vw,65px)}.scene-top>p{font-size:14px}.demo-stage{display:grid;grid-template-columns:38% 62%;align-items:center;min-height:600px;gap:10px}.demo-narrative{padding:20px 0;max-width:460px}.demo-phase{font-size:12px;color:var(--gold);letter-spacing:.04em}.demo-equation{font:clamp(36px,3.4vw,56px)/1.3 var(--serif);color:var(--ink);margin:25px 0 30px;white-space:nowrap}.demo-equation .protected-bit{color:var(--gold)}.demo-equation .changed-bit{color:var(--teal)}#demo-description{font-size:16px;line-height:1.75;min-height:140px}.demo-measures{display:flex;gap:36px;border-top:1px solid var(--line);padding-top:25px}.demo-measures>div{flex:1}.demo-measures dt{font-size:10px;margin:0}.demo-measures dd{font:34px var(--serif);color:var(--gold);margin-top:12px}.demo-measures>div:last-child dd{font-size:24px}.cube-legend{display:flex;gap:25px;font-size:12px;margin:25px 0 12px}.legend-cyan{color:var(--teal)}.legend-gold{color:var(--gold)}.live-cube{margin:0;position:relative}.live-cube:before{content:'';position:absolute;inset:8% 5% 12%;background:radial-gradient(ellipse,#122a401f,transparent 70%);pointer-events:none}#cube-scene{min-height:530px;display:flex;align-items:center;justify-content:center}#cube-scene .cube{width:90%;max-height:620px;height:auto;overflow:visible;filter:drop-shadow(0 0 14px #85a0cc18);animation:cube-enter .6s ease-out}#cube-scene .cube text{font-family:var(--serif);font-size:13px}.live-cube figcaption{text-align:center;font:italic 16px var(--serif);color:#bacbd0;margin-top:-10px}.demo-controls{border-top:1px solid var(--line);padding-top:25px}.scene-steps{display:flex;gap:10px;justify-content:space-between}.scene-steps button{flex:1;border:0;border-bottom:1px solid var(--line);border-radius:0;font-size:12px;padding:13px 8px}.scene-steps button[aria-pressed=true]{border-color:var(--gold)}.scene-transport{display:flex;align-items:center;gap:18px;margin-top:25px}.scene-transport button{font-size:13px}.scene-transport span{font-size:11px;color:var(--muted)}#wrong-order{margin-left:auto;border:0;text-decoration:underline;text-underline-offset:5px;color:var(--muted)}.scene-details{max-width:850px;margin-top:25px}.scene-details p{font-size:14px}.demo-stage.is-failure #demo-phase,.demo-stage.is-failure #demo-equation{color:#e2a294}.demo-stage.is-failure #cube-scene{filter:sepia(.3)}.research-bridge{display:grid;grid-template-columns:1fr 1fr;gap:60px}.research-bridge h2{font-size:clamp(34px,3.2vw,52px)}.research-bridge>div>p{max-width:480px}.bridge-links{display:flex;gap:30px;flex-wrap:wrap;margin-top:35px;font-size:14px}.bridge-links a{color:var(--gold)}.result-lines{padding-top:30px}.result-lines a{display:grid;grid-template-columns:160px 1fr 15px;gap:25px;align-items:center;text-decoration:none;border-bottom:1px solid var(--line);padding:28px 0;font-size:15px}.result-lines small{display:block;color:var(--muted);font-size:11px;margin-top:7px}.result-lines b{font-weight:400;color:var(--gold)}.result-math{font:26px var(--serif);color:var(--gold)}.result-math sub{font-size:12px}.evidence-boundary{grid-column:1/-1;max-width:950px;font-size:12px;color:var(--muted);margin:0;border-left:1px solid var(--gold);padding-left:20px}.journey-invitation{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;background:#04080da6}.journey-invitation h2{font-size:clamp(38px,4vw,58px)}.journey-invitation a{font-size:14px;color:var(--gold)}.journey-trace{display:flex;align-items:center;flex-direction:column;gap:15px;transform:rotate(-8deg);font-family:var(--serif);color:#c9dbe0;padding:10px 0}.journey-trace span{font-size:21px;transform:rotate(8deg)}.journey-trace span:first-child{font-size:48px;color:var(--gold)}.journey-trace i{height:25px;width:1px;background:#a2bfc455}.journey-trace sup{font-size:18px}.map-section-wrap{background:#04080def;padding:0 6%}.map-section-wrap .section{border-top:0}.takeaway{text-align:center;padding:100px 6% 130px;background:#030609b0}.takeaway .button-row{justify-content:center}.takeaway h2{font-size:clamp(42px,4vw,66px)}.observatory .footer{margin:0 4.2%;padding:35px 0}.study-heading{padding:70px 0 50px}.study-heading h1{font-size:58px}.proof-path{list-style:none;padding:15px 0}.proof-path li{padding:18px 0;border-bottom:1px solid var(--line)}.proof-path li span{display:block;font-size:13px;color:var(--muted);margin-top:5px}@keyframes cube-enter{from{opacity:.35;transform:scale(.97)}to{opacity:1;transform:scale(1)}}
@media(min-width:1700px){.hero-copy{top:34%}}@media(max-width:1100px){.hero-copy{width:47%}.hero-copy h1{font-size:54px}.hero-subtitle{font-size:29px}.hero-scene{min-height:750px}.chapter-nav a{gap:18px;padding:0 20px}.chapter-nav a>span{font-size:39px}.chapter-nav a>div{font-size:23px}.demo-stage{grid-template-columns:42% 58%;min-height:560px}#cube-scene{min-height:430px}.result-lines a{grid-template-columns:125px 1fr 12px;gap:15px}.result-math{font-size:23px}.research-bridge{gap:40px}.scene-steps{flex-wrap:wrap}.scene-steps button{min-width:140px}}
@media(max-width:760px){.observatory .header{position:relative;left:auto;right:auto;margin:0 22px;min-height:118px;padding:24px 0 18px}.observatory .brand{font-size:25px}.observatory nav{gap:16px;justify-content:space-between}.observatory nav a{font-size:13px}.observatory .sky-toggle{display:none!important}.hero-scene{min-height:790px;height:auto;max-height:none;display:flex;flex-direction:column;overflow:hidden}.hero-art{height:100%;object-position:64% top;opacity:.88}.hero-scene:before{content:'';position:absolute;inset:0;z-index:0;background:linear-gradient(#020509 0%,#020509ed 35%,transparent 65%);pointer-events:none}.hero-copy{position:relative;left:auto;top:auto;width:auto;max-width:none;margin:45px 22px 0;z-index:1}.hero-copy h1{font-size:43px;line-height:1.07;letter-spacing:-.035em}.hero-copy h1 br{display:none}.hero-subtitle{font-size:25px;max-width:340px;line-height:1.25}.hero-cta{font-size:17px;margin-top:15px;padding:14px 19px}.hero-note{font-size:14px;margin-top:20px}.hero-equation{right:5%;bottom:26px;width:90%;z-index:1}.hero-equation math{font-size:27px}.hero-equation p{font-size:12px}.chapter-nav{margin:0 22px;padding:24px 0;gap:10px}.chapter-nav a{padding:0 9px;gap:10px;display:block}.chapter-nav a>span{font-size:28px}.chapter-nav a>div{font-size:18px;margin-top:10px}.chapter-nav small{font-size:9px;line-height:1.5;min-height:27px}.chapter-nav b{display:none}.scene-section{padding:65px 22px}.scene-top{display:block}.scene-top h2{font-size:38px}.scene-top>p{font-size:13px}.demo-stage{display:flex;flex-direction:column;gap:0;min-height:0}.demo-narrative{width:100%;max-width:none;padding-bottom:0}.demo-equation{font-size:36px;margin:20px 0}#demo-description{font-size:15px;min-height:100px}.demo-measures{gap:25px;padding-top:16px}.demo-measures dd{font-size:29px}.demo-measures>div:last-child dd{font-size:23px}.cube-legend{margin-top:18px}.demo-narrative .small{font-size:11px}.live-cube{width:100%;margin-top:-10px}#cube-scene{min-height:300px}#cube-scene .cube{width:100%;max-height:400px}.live-cube figcaption{font-size:13px;line-height:1.5;margin:0 0 22px}.scene-steps{gap:5px}.scene-steps button{flex-basis:30%;min-width:90px;font-size:10px;line-height:1.5;padding:10px 5px}.scene-transport{gap:9px;flex-wrap:wrap}.scene-transport button{font-size:12px;padding:12px}#wrong-order{margin-left:0;width:100%;justify-content:start;padding-left:0}.scene-details summary{font-size:13px}.research-bridge{display:block}.research-bridge h2{font-size:35px}.result-lines{margin:25px 0 35px;padding-top:0}.result-lines a{grid-template-columns:115px 1fr 12px;gap:16px;font-size:13px}.result-lines small{font-size:10px}.result-math{font-size:22px}.evidence-boundary{font-size:11px}.journey-invitation{display:block}.journey-trace{margin-top:50px}.map-section-wrap{padding:0 22px}.takeaway{padding:70px 22px}.takeaway h2{font-size:40px}.takeaway .button{font-size:13px}.observatory .footer{margin:0 22px}.observatory .footer .brand{font-size:23px}.study-heading{padding:35px 0}.study-heading h1{font-size:43px}}
@media(prefers-reduced-motion:reduce){#cube-scene .cube{animation:none}.hero-art{animation:none}}

@media(max-width:760px){.journey-trace{transform:none}.journey-trace span{transform:none}.result-math{font-size:20px}.hero-copy h1 br{display:contents}}