:root { --exhibit-cream:#f3ecdc; --exhibit-ink:#171713; --exhibit-gold:#bd8b32; --exhibit-silver:#b9b8b0; --exhibit-red:#762d2b; --exhibit-blue:#162230; --exhibit-blue-deep:#0c131d; --exhibit-paper:#fffaf0; --exhibit-green:#45594a; }
.exhibit-body { background: var(--exhibit-cream); }
.exhibit-header { background: rgba(243,236,220,.94); }
.exhibit-progress { position: fixed; z-index: 70; left:0; top:75px; width:100%; height:3px; background:rgba(0,0,0,.08); }
.exhibit-progress span { display:block; height:100%; width:0; background:var(--exhibit-gold); }
.chapter-rail { position:fixed; z-index:40; right:14px; top:50%; transform:translateY(-50%); display:grid; gap:4px; }
.chapter-rail a { width:42px; min-height:36px; padding:7px 5px; display:grid; place-items:center; text-decoration:none; border:1px solid transparent; color:rgba(23,23,19,.42); background:rgba(243,236,220,.86); backdrop-filter:blur(7px); }
.chapter-rail a span { font:700 10px var(--sans); letter-spacing:.08em; }
.chapter-rail a em { display:none; }
.chapter-rail a.active { color:var(--exhibit-ink); border-color:rgba(23,23,19,.2); background:#fffaf0; }
.exhibit-kicker { text-transform:uppercase; letter-spacing:.18em; font-size:11px; font-weight:700; color:var(--exhibit-red); margin:0 0 14px; }
.exhibit-hero { min-height:calc(100vh - 76px); display:flex; align-items:center; background:radial-gradient(circle at 78% 42%, rgba(189,139,50,.13), transparent 26%), linear-gradient(115deg,#f5efe3 0%,#ebe1ce 100%); border-bottom:1px solid rgba(23,23,19,.14); overflow:hidden; }
.exhibit-hero-grid { display:grid; grid-template-columns:1.1fr .9fr; gap:70px; align-items:center; padding-top:72px; padding-bottom:72px; }
.exhibit-hero h1 { font:400 clamp(54px,7vw,100px)/.98 var(--serif); letter-spacing:-.055em; margin:0; max-width:840px; }
.exhibit-hero h1 span { color:var(--exhibit-gold); font-style:italic; }
.exhibit-subtitle { font:400 clamp(18px,2vw,25px)/1.5 var(--serif); color:#5a554d; margin:22px 0 30px; }
.question-plaque { border-left:3px solid var(--exhibit-gold); padding:4px 0 4px 20px; max-width:720px; }
.question-plaque small { display:block; text-transform:uppercase; letter-spacing:.14em; font-size:10px; margin-bottom:6px; color:#6a645c; }
.question-plaque strong { font:400 17px/1.55 var(--serif); }
.exhibit-enter { display:inline-flex; gap:10px; margin-top:28px; text-decoration:none; font-weight:700; }
.apple-frame-stage { display:grid; justify-items:center; gap:18px; }
.silver-frame { width:min(390px,80vw); aspect-ratio:4/5; padding:36px; position:relative; display:grid; place-items:center; border:14px ridge #b8b6ae; background:linear-gradient(135deg,#d8d7d0,#8f8e88 35%,#deddd6 70%,#9a9992); box-shadow:inset 0 0 0 5px #6f6d67, inset 0 0 0 22px #c3c2bb, 0 26px 80px rgba(37,31,21,.18); }
.silver-frame::before { content:""; position:absolute; inset:28px; border:1px solid rgba(44,42,37,.45); background:radial-gradient(circle at 50% 38%,#2d2b26,#151511 72%); }
.frame-inscription { position:absolute; z-index:3; font:700 9px var(--serif); letter-spacing:.2em; color:#4c4b47; }
.frame-top { top:9px; }.frame-bottom{bottom:9px;}
.gold-apple { position:relative; z-index:2; width:150px; height:145px; border-radius:48% 52% 50% 50% / 43% 43% 57% 57%; background:radial-gradient(circle at 32% 27%,#f4d998,#c89536 48%,#976719 88%); box-shadow:inset -16px -20px 28px rgba(92,54,7,.22),0 12px 34px rgba(0,0,0,.28); }
.gold-apple::before { content:""; position:absolute; width:14px; height:48px; left:70px; top:-30px; background:#5d4525; border-radius:50%; transform:rotate(13deg); }
.gold-apple::after { content:""; position:absolute; width:48px; height:24px; left:78px; top:-17px; background:#65724c; border-radius:100% 0 100% 0; transform:rotate(-10deg); }
.gold-apple span { position:absolute; width:40px; height:65px; left:25px; top:22px; border-radius:50%; background:rgba(255,247,208,.23); transform:rotate(25deg); }
.stage-caption { max-width:360px; text-align:center; font-size:12px; color:#6f695f; }
.opening-gallery { padding:110px 0; background:#fffaf0; }
.gallery-intro { max-width:820px; margin-bottom:48px; }
.gallery-intro h2,.chapter-heading h2,.sources-section h2 { font:400 clamp(40px,5vw,68px)/1.08 var(--serif); letter-spacing:-.035em; margin:0 0 20px; }
.gallery-intro h2 em { color:var(--exhibit-red); }
.gallery-intro>p:last-child { font-size:18px;color:#5d584f;max-width:690px; }
.artifact-pair { display:grid; grid-template-columns:1fr 70px 1fr; align-items:center; gap:24px; }
.scan-card { min-width:0; }
.scan-image-wrap { position:relative; min-height:500px; background:#ddd4c2; padding:32px; display:grid; place-items:center; overflow:hidden; border:1px solid rgba(20,18,15,.15); }
.scan-image-wrap::after { content:""; position:absolute; inset:0; box-shadow:inset 0 0 70px rgba(67,50,25,.2); pointer-events:none; }
.scan-image-wrap img { max-height:480px; width:auto; filter:sepia(.13) contrast(.92); box-shadow:0 16px 40px rgba(39,29,17,.18); }
.scan-year { position:absolute; left:18px; top:16px; font:700 12px var(--sans); letter-spacing:.18em; color:#4e483e; }
.scan-copy { padding:22px 4px; }
.artifact-type { font-size:10px; text-transform:uppercase; letter-spacing:.14em; color:var(--exhibit-red);font-weight:700; }
.scan-copy h3 { font:400 28px var(--serif); margin:7px 0 14px; }
.artifact-question,.debate-side button,.rep-demo button,.reflection-tools button { border:0; border-bottom:1px solid currentColor;background:transparent;padding:4px 0;font:700 12px var(--sans);cursor:pointer;color:inherit; }
.artifact-reveal { color:#5e594f;font-size:14px; }
.versus-marker { font:400 42px var(--serif); color:#9c8d75;text-align:center; }
.prediction-box { margin-top:60px;border-top:1px solid rgba(23,23,19,.18);border-bottom:1px solid rgba(23,23,19,.18);padding:30px 0;display:grid;grid-template-columns:.8fr 1.2fr;gap:36px;align-items:start; }
.prediction-box label { font:400 17px/1.6 var(--serif); }
.prediction-box textarea,.reflection-prompt textarea { width:100%;padding:16px;border:1px solid rgba(23,23,19,.25);background:#fffdf8;color:var(--exhibit-ink);font:400 16px/1.6 var(--sans);resize:vertical; }
.local-note { grid-column:2;color:#7c756a;font-size:11px;margin:-25px 0 0; }
.chapter { padding:120px 0; }
.narrow-shell { width:min(980px,calc(100% - 40px)); }
.chapter-heading { display:grid;grid-template-columns:90px 1fr;gap:25px;align-items:start;margin-bottom:58px; }
.chapter-number { width:70px;height:70px;border:1px solid currentColor;border-radius:50%;display:grid;place-items:center;font:400 22px var(--serif);opacity:.45; }
.chapter-heading h2 { margin:0;max-width:900px; }.chapter-heading .exhibit-kicker{margin-bottom:10px;}.chapter-heading.light{color:#fff}.chapter-heading.light .exhibit-kicker{color:#d4b56c}
.logic-lab { display:grid;grid-template-columns:1.2fr .8fr;border:1px solid rgba(23,23,19,.16);background:#fffaf0; }
.logic-document { padding:46px; }.document-label{font-size:10px;text-transform:uppercase;letter-spacing:.15em;font-weight:700;color:#766e61;margin:0 0 22px;}
.declaration-excerpt { font:400 clamp(19px,2.2vw,27px)/1.72 var(--serif);margin:0; }
.hot-phrase { appearance:none;border:0;border-bottom:2px dotted #9f772e;background:transparent;color:inherit;font:inherit;padding:0;cursor:pointer;text-align:left; }
.hot-phrase.active { background:linear-gradient(transparent 58%,rgba(189,139,50,.28) 58%);border-bottom-style:solid; }
.source-line { font-size:10px;color:#7e776d;margin:25px 0 0; }
.logic-analysis { padding:46px;background:var(--exhibit-blue);color:#fff; }
.logic-analysis>span { font-size:10px;text-transform:uppercase;letter-spacing:.14em;color:#d6bd7f; }
.logic-analysis h3 { font:400 30px/1.15 var(--serif);margin:12px 0 17px; }.logic-analysis p{color:rgba(255,255,255,.72)}
.reasoning-prompt { border-top:1px solid rgba(255,255,255,.2);padding-top:20px;margin-top:28px; }.reasoning-prompt small{display:block;color:#d6bd7f;text-transform:uppercase;letter-spacing:.13em;font-size:9px;margin-bottom:7px}.reasoning-prompt strong{font:400 15px/1.5 var(--serif)}
.logic-chain { display:flex;align-items:stretch;margin-top:34px; }.logic-chain button{flex:1;border:1px solid rgba(23,23,19,.16);background:transparent;padding:20px 13px;text-align:left;cursor:pointer}.logic-chain button:hover,.logic-chain button:focus-visible{background:#fffaf0}.logic-chain button span{display:block;font-size:10px;color:var(--exhibit-red);font-weight:700}.logic-chain button strong{display:block;font:400 16px var(--serif);margin:5px 0}.logic-chain button em{display:block;font-style:normal;font-size:11px;color:#716a5f}.logic-chain i{display:grid;place-items:center;padding:0 8px;color:#9b8e7a}.chain-feedback{min-height:28px;font-size:13px;color:#625c53;margin:14px 0 0}
.problem-section,.debate-section,.lincoln-section{background:var(--exhibit-blue-deep);color:#fff}.problem-section .exhibit-kicker,.debate-section .exhibit-kicker,.lincoln-section .exhibit-kicker{color:#d4b56c}
.diagnostic { display:grid;grid-template-columns:.55fr 1.45fr;gap:55px;align-items:start}.diagnostic-intro p{color:rgba(255,255,255,.7)}.diagnostic-intro h3{font:400 26px var(--serif)}
.diagnostic-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid rgba(255,255,255,.18);border-left:1px solid rgba(255,255,255,.18)}.diagnostic-grid button{min-height:170px;padding:22px;border:0;border-right:1px solid rgba(255,255,255,.18);border-bottom:1px solid rgba(255,255,255,.18);background:transparent;color:#fff;text-align:left;cursor:pointer}.diagnostic-grid button:hover,.diagnostic-grid button:focus-visible{background:rgba(255,255,255,.06)}.diagnostic-grid button.selected{background:rgba(189,139,50,.15);box-shadow:inset 0 0 0 2px #c9a251}.diagnostic-grid span{display:block;color:#d4b56c;font-size:10px;text-transform:uppercase;letter-spacing:.13em}.diagnostic-grid strong{display:block;font:400 17px/1.45 var(--serif);margin:10px 0}.diagnostic-grid em{font-style:normal;color:rgba(255,255,255,.55);font-size:12px}.diagnostic-result{grid-column:2;margin-top:-30px;border-left:2px solid #c9a251;padding-left:16px;display:grid}.diagnostic-result strong{font:400 16px var(--serif)}.diagnostic-result span{font-size:12px;color:rgba(255,255,255,.62)}
.hinge-timeline{display:grid;grid-template-columns:repeat(4,1fr);margin-top:75px;border-top:1px solid rgba(255,255,255,.2)}.hinge-timeline article{padding:25px 25px 0 0;position:relative}.hinge-timeline article::before{content:"";position:absolute;width:9px;height:9px;border-radius:50%;background:#d4b56c;top:-5px;left:0}.hinge-timeline span{color:#d4b56c;font:700 11px var(--sans);letter-spacing:.12em}.hinge-timeline h3{font:400 18px var(--serif);margin:8px 0}.hinge-timeline p{font-size:12px;color:rgba(255,255,255,.6)}.nuance-note{margin-top:48px;padding:22px;border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.68);font-size:13px}.nuance-note strong{color:#fff}
.framework-section{background:#efe7d7}.preamble-bridge{display:grid;grid-template-columns:1.1fr .9fr;background:#fffaf0;border:1px solid rgba(23,23,19,.16)}.preamble-copy{padding:40px}.preamble-copy blockquote{font:400 22px/1.55 var(--serif);margin:0 0 15px}.preamble-copy>p:last-child{color:#6a645b}.means-ends-visual{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;padding:40px;background:var(--exhibit-blue);color:#fff}.means-ends-visual span{font-size:10px;letter-spacing:.13em}.means-ends-visual strong{font:400 16px var(--serif);padding:14px;border:1px solid rgba(255,255,255,.35)}.means-ends-visual i{color:#d4b56c}
.mechanism-lab{display:grid;grid-template-columns:.62fr 1.38fr;margin-top:35px;background:#fffaf0;border:1px solid rgba(23,23,19,.16)}.mechanism-controls{padding:30px;border-right:1px solid rgba(23,23,19,.16)}.mechanism-button{width:100%;text-align:left;padding:13px 0;border:0;border-bottom:1px solid rgba(23,23,19,.14);background:transparent;cursor:pointer;font:600 13px var(--sans)}.mechanism-button.active{color:var(--exhibit-red)}.constitutional-machine{padding:35px}.machine-header{display:flex;justify-content:space-between;gap:20px;align-items:end;border-bottom:1px solid rgba(23,23,19,.14);padding-bottom:14px}.machine-header span{font-size:10px;text-transform:uppercase;letter-spacing:.14em;color:var(--exhibit-red);font-weight:700}.machine-header strong{font:400 26px var(--serif);text-align:right}.machine-diagram{display:flex;gap:10px;align-items:center;justify-content:center;min-height:160px;padding:25px 0;flex-wrap:wrap}.machine-node{border:1px solid rgba(23,23,19,.22);padding:14px;background:#f5efe3;min-width:110px;text-align:center;font-size:12px;font-weight:700}.machine-node.primary{background:var(--exhibit-blue);color:#fff}.machine-arrow{color:#9f8d70}.constitutional-machine>p{color:#5f594f}.machine-connection{border-left:2px solid var(--exhibit-gold);padding-left:16px;margin-top:24px}.machine-connection small{display:block;text-transform:uppercase;letter-spacing:.12em;font-size:9px;color:#7f776a}.machine-connection strong{display:block;font:400 14px/1.5 var(--serif);margin-top:4px}
.ideal-mapper{margin-top:70px}.mapper-intro{max-width:720px}.mapper-intro h3{font:400 30px var(--serif);margin:0}.mapper-intro>p:last-child{color:#625d54}.ideal-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:28px 0 18px}.ideal-tabs button,.clause-tabs button,.lens-picker button{border:1px solid rgba(23,23,19,.25);background:transparent;padding:10px 14px;cursor:pointer;font:700 12px var(--sans)}.ideal-tabs button[aria-selected="true"],.clause-tabs button[aria-selected="true"],.lens-picker button.active{background:var(--exhibit-ink);color:#fff}.ideal-result{display:grid;grid-template-columns:.35fr 1fr 1fr;border-top:1px solid rgba(23,23,19,.18);border-bottom:1px solid rgba(23,23,19,.18)}.ideal-result>strong,.ideal-result>div{padding:24px}.ideal-result>strong{font:400 26px var(--serif)}.ideal-result>div{border-left:1px solid rgba(23,23,19,.18)}.ideal-result span{font-size:9px;text-transform:uppercase;letter-spacing:.13em;color:var(--exhibit-red);font-weight:700}.ideal-result p{font-size:13px;margin:8px 0 0}
.ratification-desk{display:grid;grid-template-columns:1fr 150px 1fr;gap:32px;align-items:stretch}.debate-side{padding:34px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.035)}.pamphlet-label{font-size:9px;letter-spacing:.15em;color:#d4b56c;font-weight:700}.debate-side h3{font:400 30px/1.15 var(--serif)}.debate-side p{color:rgba(255,255,255,.66)}.debate-side blockquote{font:400 14px/1.6 var(--serif);margin:20px 0 0;padding:16px;border-left:2px solid #d4b56c;background:rgba(255,255,255,.04)}.debate-axis{display:grid;grid-template-rows:auto 1fr auto auto;gap:8px;justify-items:center;text-align:center;color:rgba(255,255,255,.55);font-size:9px;letter-spacing:.11em}.debate-axis>div{width:1px;background:rgba(255,255,255,.3);position:relative}.debate-axis i{position:absolute;top:50%;left:-5px;width:11px;height:11px;border-radius:50%;background:#d4b56c}.debate-axis strong{font:400 12px/1.45 var(--serif);color:#fff;letter-spacing:0}.rights-pressure{margin-top:75px;display:grid;grid-template-columns:.8fr 1.2fr;background:#f3ecdc;color:var(--exhibit-ink)}.rights-scan{padding:30px;background:#d9cfba;display:grid;place-items:center;overflow:hidden}.rights-scan img{width:100%;max-height:520px;object-fit:contain;box-shadow:0 20px 45px rgba(0,0,0,.18)}.rights-copy{padding:45px}.rights-copy h3{font:400 32px var(--serif)}.rights-explorer{display:flex;flex-wrap:wrap;gap:7px;margin:25px 0}.right-chip{border:1px solid rgba(23,23,19,.23);background:transparent;padding:9px 11px;font:700 11px var(--sans);cursor:pointer}.right-chip.active{background:var(--exhibit-ink);color:#fff}.right-result{border-top:1px solid rgba(23,23,19,.16);padding-top:19px}.right-result strong{font:400 21px var(--serif)}.right-result p{font-size:13px;color:#5f594f}
.contradiction-section{background:#e8dfcf}.contradiction-intro{font:400 21px/1.7 var(--serif);max-width:850px}.clause-explorer{margin-top:45px;border:1px solid rgba(23,23,19,.18);background:#fffaf0}.clause-tabs{display:flex;gap:0;border-bottom:1px solid rgba(23,23,19,.18)}.clause-tabs button{border:0;border-right:1px solid rgba(23,23,19,.18)}.clause-document{padding:35px 40px;border-bottom:1px solid rgba(23,23,19,.16)}.clause-document>span{font-size:10px;text-transform:uppercase;letter-spacing:.13em;color:var(--exhibit-red);font-weight:700}.clause-document blockquote{font:400 21px/1.6 var(--serif);margin:13px 0 0}.clause-document mark{background:rgba(125,48,45,.13);color:inherit;padding:2px}.clause-analysis{padding:30px 40px;display:grid;grid-template-columns:.6fr 1.4fr;gap:30px}.clause-analysis h3{font:400 24px var(--serif);margin:0}.clause-analysis p{margin:0;color:#5d584f}.representation-lab{display:grid;grid-template-columns:.65fr 1.35fr;gap:45px;margin-top:60px}.rep-copy h3{font:400 30px var(--serif);margin:0}.rep-copy p:last-child{color:#645e55}.rep-demo{padding:30px;background:var(--exhibit-blue);color:#fff}.rep-demo label{font:700 12px var(--sans)}.rep-demo label span{display:block;color:rgba(255,255,255,.55);font-weight:400;margin-top:4px}.rep-bars{margin:24px 0}.rep-bars>div{display:grid;grid-template-columns:150px 1fr 60px;gap:12px;align-items:center;margin:14px 0;font-size:10px}.rep-bars i{height:14px;background:linear-gradient(90deg,#cfa756 var(--value),rgba(255,255,255,.12) var(--value));border:1px solid rgba(255,255,255,.14)}.rep-bars strong{text-align:right}.rep-demo button{color:#fff}.rep-demo>p{font-size:12px;color:rgba(255,255,255,.72)}.interpretive-pause{margin-top:75px;padding-top:40px;border-top:1px solid rgba(23,23,19,.18)}.interpretive-pause h3{font:400 30px var(--serif)}.interpretive-choices{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.interpretive-choices button{padding:20px;text-align:left;border:1px solid rgba(23,23,19,.2);background:transparent;cursor:pointer}.interpretive-choices button.selected{background:#fffaf0;box-shadow:inset 0 0 0 2px var(--exhibit-gold)}.interpretive-choices strong{display:block;font:400 18px var(--serif);margin-bottom:8px}.interpretive-choices span{font-size:12px;color:#655f56}.interpretive-response{font-size:12px;color:#655f56;min-height:24px}
.lincoln-stage{display:grid;grid-template-columns:1fr .7fr 1fr;gap:35px;align-items:center}.lincoln-context p{color:rgba(255,255,255,.68)}.lincoln-context .document-label{color:#d4b56c}.metaphor-buttons{display:grid}.metaphor-buttons button{border:0;border-bottom:1px solid rgba(255,255,255,.16);background:transparent;color:#fff;padding:12px 0;text-align:left;font:600 13px var(--sans);cursor:pointer}.metaphor-buttons button.active{color:#d4b56c}.metaphor-art{display:grid;place-items:center}.silver-frame.large{width:210px;padding:25px;border-width:9px}.silver-frame.large .gold-apple{width:85px;height:82px}.silver-frame.large .gold-apple::before{left:40px;width:9px;height:30px;top:-19px}.silver-frame.large .gold-apple::after{left:47px;width:28px;height:14px;top:-10px}.silver-frame.large .gold-apple span{width:25px;height:35px;left:14px;top:15px}.lincoln-quote{font:400 25px/1.55 var(--serif);margin:0}.lincoln-quote cite{display:block;font:400 10px/1.5 var(--sans);text-transform:uppercase;letter-spacing:.11em;color:#d4b56c;margin-top:18px}.lincoln-reading{display:grid;grid-template-columns:.7fr 1.2fr .8fr;gap:30px;margin-top:70px;padding:30px 0;border-top:1px solid rgba(255,255,255,.18);border-bottom:1px solid rgba(255,255,255,.18)}.lincoln-reading h3{font:400 28px var(--serif);margin:0}.lincoln-reading>p{color:rgba(255,255,255,.66);margin:0}.lincoln-reading blockquote{font:400 17px/1.6 var(--serif);margin:0;color:#d4b56c}.metaphor-sort{margin-top:55px}.metaphor-sort>.document-label{color:#d4b56c}.sort-item{display:grid;grid-template-columns:1fr auto 110px;gap:18px;align-items:center;padding:16px 0;border-top:1px solid rgba(255,255,255,.15)}.sort-item:last-child{border-bottom:1px solid rgba(255,255,255,.15)}.sort-item span{font:400 15px var(--serif)}.sort-item button{border:1px solid rgba(255,255,255,.3);background:transparent;color:#fff;padding:7px 10px;cursor:pointer}.sort-item em{font-style:normal;font-size:11px}.sort-item.correct em{color:#d4b56c}.sort-item.incorrect em{color:#d49a96}
.unfinished-section{background:#f5efe3}.legacy-timeline{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(23,23,19,.2);border-bottom:1px solid rgba(23,23,19,.2)}.legacy-timeline button{padding:20px;border:0;border-right:1px solid rgba(23,23,19,.16);background:transparent;text-align:left;cursor:pointer}.legacy-timeline button:last-child{border-right:0}.legacy-timeline button.active{background:#fffaf0;box-shadow:inset 0 -3px var(--exhibit-gold)}.legacy-timeline span{display:block;font-size:10px;color:var(--exhibit-red);font-weight:700}.legacy-timeline strong{display:block;font:400 16px var(--serif);margin-top:5px}.legacy-stage{display:grid;grid-template-columns:.35fr 1.65fr;min-height:330px;border-bottom:1px solid rgba(23,23,19,.2)}.legacy-year{font:400 clamp(64px,9vw,120px)/1 var(--serif);color:#c5b99f;padding:42px 25px 42px 0}.legacy-copy{padding:45px;border-left:1px solid rgba(23,23,19,.18)}.legacy-copy>span{font-size:9px;text-transform:uppercase;letter-spacing:.14em;color:var(--exhibit-red);font-weight:700}.legacy-copy h3{font:400 30px var(--serif);margin:8px 0}.legacy-copy blockquote{font:400 22px/1.5 var(--serif);margin:18px 0;color:#4d463b}.legacy-copy p{color:#625c52;max-width:690px}.throughline{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:42px;padding:22px;background:var(--exhibit-blue);color:#fff}.throughline strong{font:400 16px var(--serif);margin-right:auto}.throughline span{font-size:10px;text-transform:uppercase;letter-spacing:.1em}.throughline i{color:#d4b56c}
.reflection-section{background:var(--exhibit-blue-deep);color:#fff}.reflection-prompt{background:#f3ecdc;color:var(--exhibit-ink);padding:42px}.reflection-prompt>p:first-child{font:400 24px/1.55 var(--serif);margin-top:0}.lens-picker{display:flex;gap:7px;margin:25px 0 12px}.lens-nudge{font-size:12px;color:#6b645a;min-height:38px}.reflection-prompt label{display:block;font-size:10px;text-transform:uppercase;letter-spacing:.13em;font-weight:700;margin:25px 0 8px}.reflection-tools{display:flex;justify-content:space-between;align-items:center;margin-top:8px;font-size:11px;color:#756e62}.starter{margin-top:16px;padding:16px;border-left:2px solid var(--exhibit-gold);background:#fffaf0;font-size:12px}.starter p{font:400 14px var(--serif);margin-bottom:0}.reflection-prompt .local-note{margin:14px 0 0;grid-column:auto}.apush-connection{margin-top:55px;border:1px solid rgba(255,255,255,.16);padding:35px}.apush-connection h3{font:400 30px var(--serif);margin:0}.apush-connection>p{color:rgba(255,255,255,.66)}.skill-chips{display:flex;flex-wrap:wrap;gap:7px;margin:24px 0}.skill-chips span{border:1px solid rgba(255,255,255,.22);padding:7px 10px;font-size:10px}.apush-prompt{border-top:1px solid rgba(255,255,255,.17);padding-top:20px}.apush-prompt small{display:block;color:#d4b56c;text-transform:uppercase;letter-spacing:.11em;font-size:9px}.apush-prompt strong{display:block;font:400 16px/1.5 var(--serif);margin-top:5px}.exit-comparison{display:grid;grid-template-columns:1fr auto 1fr auto 1.2fr;gap:15px;align-items:center;margin-top:65px}.exit-comparison>div{padding:18px;border-top:1px solid rgba(255,255,255,.22);border-bottom:1px solid rgba(255,255,255,.22)}.exit-comparison span{display:block;color:#d4b56c;font-size:9px;letter-spacing:.13em}.exit-comparison strong{display:block;font:400 14px var(--serif);margin:7px 0}.exit-comparison em{font-style:normal;font-size:10px;color:rgba(255,255,255,.55)}.exit-comparison>i{color:#d4b56c}.unfinished-box{background:rgba(189,139,50,.12)}
.sources-section{padding:90px 0;background:#f5efe3}.sources-section h2{margin-bottom:20px}.sources-section>div>p{color:#5f594f}.source-list{border-top:1px solid rgba(23,23,19,.18);margin:32px 0}.source-list a{display:flex;justify-content:space-between;gap:30px;padding:15px 0;border-bottom:1px solid rgba(23,23,19,.18);text-decoration:none;font-size:12px}.source-list a:hover strong{text-decoration:underline}.source-list span{color:#70695e;text-align:right}.historical-note{padding:18px;border-left:3px solid var(--exhibit-gold);background:#fffaf0;font-size:12px}
.reveal-on-scroll { opacity:0; transform:translateY(16px); transition:opacity .6s ease,transform .6s ease; }.reveal-on-scroll.visible{opacity:1;transform:none}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal-on-scroll{opacity:1;transform:none;transition:none}}
@media(max-width:1050px){.chapter-rail{display:none}.exhibit-hero-grid,.logic-lab,.diagnostic,.preamble-bridge,.mechanism-lab,.rights-pressure,.representation-lab,.lincoln-stage,.lincoln-reading{grid-template-columns:1fr}.diagnostic-result{grid-column:1;margin-top:0}.mechanism-controls{border-right:0;border-bottom:1px solid rgba(23,23,19,.16)}.ratification-desk{grid-template-columns:1fr}.debate-axis{display:none}.lincoln-stage{gap:45px}.metaphor-art{order:-1}.apple-frame-stage{padding-top:30px}.exhibit-hero{min-height:auto}.artifact-pair{grid-template-columns:1fr}.versus-marker{transform:rotate(90deg)}.prediction-box{grid-template-columns:1fr}.local-note{grid-column:1;margin:0}.clause-analysis{grid-template-columns:1fr}.exit-comparison{grid-template-columns:1fr}.exit-comparison>i{text-align:center}.ideal-result{grid-template-columns:1fr}.ideal-result>div{border-left:0;border-top:1px solid rgba(23,23,19,.18)}}
@media(max-width:700px){.exhibit-progress{top:75px}.exhibit-hero-grid{padding-top:45px;padding-bottom:55px}.exhibit-hero h1{font-size:50px}.opening-gallery,.chapter{padding:78px 0}.gallery-intro h2,.chapter-heading h2,.sources-section h2{font-size:40px}.chapter-heading{grid-template-columns:50px 1fr;gap:14px}.chapter-number{width:44px;height:44px;font-size:15px}.scan-image-wrap{min-height:350px;padding:20px}.scan-image-wrap img{max-height:330px}.logic-document,.logic-analysis{padding:25px}.declaration-excerpt{font-size:18px}.logic-chain{display:grid;grid-template-columns:1fr}.logic-chain i{transform:rotate(90deg);height:22px}.diagnostic-grid{grid-template-columns:1fr}.hinge-timeline{grid-template-columns:1fr;border-left:1px solid rgba(255,255,255,.2);border-top:0;margin-left:5px}.hinge-timeline article{padding:0 0 28px 25px}.hinge-timeline article::before{left:-5px;top:5px}.mechanism-controls,.constitutional-machine,.rights-copy{padding:25px}.ratification-desk{gap:16px}.rights-scan{padding:18px}.clause-tabs{overflow-x:auto}.clause-tabs button{white-space:nowrap}.clause-document,.clause-analysis{padding:25px}.rep-bars>div{grid-template-columns:105px 1fr 50px}.interpretive-choices{grid-template-columns:1fr}.lincoln-quote{font-size:20px}.sort-item{grid-template-columns:1fr}.sort-item em{min-height:16px}.legacy-timeline{grid-template-columns:1fr 1fr}.legacy-timeline button{border-bottom:1px solid rgba(23,23,19,.16)}.legacy-stage{grid-template-columns:1fr}.legacy-year{padding:28px 0 0}.legacy-copy{padding:28px 0;border-left:0}.throughline{align-items:flex-start;flex-direction:column}.throughline strong{margin-right:0}.throughline i{transform:rotate(90deg);margin-left:8px}.reflection-prompt,.apush-connection{padding:25px}.exit-comparison{gap:7px}.source-list a{display:grid;gap:4px}.source-list span{text-align:left}.silver-frame{width:min(310px,80vw)}}

/* Phase 2.1 refinements */
.apple-frame-image{display:block;width:100%;height:auto;object-fit:contain}.hero-metaphor-image{width:min(500px,88vw);filter:drop-shadow(0 24px 35px rgba(37,31,21,.2))}.lincoln-metaphor-image{width:min(310px,80vw);filter:drop-shadow(0 20px 30px rgba(0,0,0,.28))}
.diagnostic-result{display:block;border-left:0;padding-left:0}.diagnostic-evidence-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.diagnostic-evidence{border:1px solid rgba(255,255,255,.18);padding:18px;background:rgba(255,255,255,.045)}.diagnostic-evidence small{display:block;color:#d4b56c;font-size:10px;text-transform:uppercase;letter-spacing:.13em}.diagnostic-evidence h4{font:400 17px/1.4 var(--serif);margin:8px 0 10px}.diagnostic-evidence p{font-size:12px;line-height:1.6;color:rgba(255,255,255,.7)}.confederation-case{margin-top:14px;padding-top:12px;border-top:1px solid rgba(255,255,255,.16)}.confederation-case strong{display:block;font:700 10px/1.4 var(--sans);text-transform:uppercase;letter-spacing:.08em;color:#d4b56c}.confederation-case span{display:block;margin-top:6px;font-size:12px;line-height:1.6;color:rgba(255,255,255,.7)}.diagnostic-evidence em{display:block;margin-top:12px;font:italic 12px/1.5 var(--serif);color:rgba(255,255,255,.86)}.diagnostic-synthesis{margin-top:14px;border-left:2px solid #c9a251;padding:12px 0 12px 16px}.diagnostic-synthesis strong{font:400 16px var(--serif)}.diagnostic-synthesis p{margin:5px 0 0;font-size:12px;line-height:1.6;color:rgba(255,255,255,.68)}
.machine-primary-source{margin-top:24px;padding:18px 20px;background:#f1e8d8;border-top:1px solid rgba(23,23,19,.13);border-bottom:1px solid rgba(23,23,19,.13)}.machine-primary-source small{display:block;text-transform:uppercase;letter-spacing:.11em;font-size:9px;font-weight:700;color:var(--exhibit-red)}.machine-primary-source blockquote{margin:9px 0 6px;font:italic 18px/1.45 var(--serif);color:#26231e}.machine-primary-source p{margin:0;font-size:11px;line-height:1.55;color:#696156}
@media(max-width:700px){.diagnostic-evidence-grid{grid-template-columns:1fr}.hero-metaphor-image{width:min(380px,92vw)}.lincoln-metaphor-image{width:min(280px,86vw)}}

/* Phase 2.2 · Canvas / Google Assignments companion workflow */
.assignment-float{position:fixed;right:22px;bottom:22px;z-index:40;display:flex;align-items:center;gap:9px;padding:12px 16px;border:1px solid rgba(255,255,255,.22);background:rgba(20,31,46,.94);color:#fff;text-decoration:none;box-shadow:0 12px 34px rgba(0,0,0,.2);backdrop-filter:blur(10px);font-size:12px;letter-spacing:.02em}.assignment-float span{color:#d4b56c;font-size:16px}.assignment-float:hover,.assignment-float:focus-visible{background:#263c57;transform:translateY(-1px)}
.assignment-launch{padding:44px 0;background:#162438;border-bottom:1px solid rgba(255,255,255,.12)}.assignment-launch-card{display:grid;grid-template-columns:72px 1fr auto;gap:28px;align-items:center;padding:30px 34px;border:1px solid rgba(212,181,108,.35);background:linear-gradient(120deg,rgba(255,255,255,.055),rgba(189,139,50,.07));color:#fff}.assignment-launch-icon{width:62px;height:62px;border:1px solid #d4b56c;border-radius:50%;display:grid;place-items:center;font:400 20px var(--serif);color:#d4b56c}.assignment-launch-copy h2{margin:0 0 10px;font:400 30px/1.15 var(--serif)}.assignment-launch-copy>p:not(.exhibit-kicker){margin:0;color:rgba(255,255,255,.72);font-size:13px;line-height:1.65}.assignment-workflow{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:18px;color:rgba(255,255,255,.72);font-size:10px;text-transform:uppercase;letter-spacing:.07em}.assignment-workflow span{display:flex;align-items:center;gap:6px}.assignment-workflow b{width:20px;height:20px;border-radius:50%;display:grid;place-items:center;background:rgba(212,181,108,.15);color:#e0c98f;font-size:9px}.assignment-workflow i{font-style:normal;color:#d4b56c}.assignment-button{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:14px 18px;background:#c49a48;color:#171713;text-decoration:none;font-weight:700;font-size:12px;white-space:nowrap;border:1px solid #d9bb79;box-shadow:0 7px 20px rgba(0,0,0,.12)}.assignment-button:hover,.assignment-button:focus-visible{background:#d4b56c;transform:translateY(-1px)}
.assignment-checkpoint{margin-top:64px;padding:24px 26px;display:grid;grid-template-columns:58px 1fr auto;gap:22px;align-items:center;background:#fffaf0;color:#201d18;border:1px solid rgba(23,23,19,.17);border-left:4px solid #bd8b32;box-shadow:0 14px 34px rgba(27,22,15,.08)}.checkpoint-number{width:48px;height:48px;border:1px solid #bd8b32;border-radius:50%;display:grid;place-items:center;font:400 18px var(--serif);color:#8a6425}.checkpoint-copy .exhibit-kicker{margin:0 0 5px;font-size:9px}.checkpoint-copy h3{margin:0 0 6px;font:400 22px/1.25 var(--serif);color:#201d18}.checkpoint-copy p:last-child{margin:0;color:#625b51;font-size:12px;line-height:1.6;max-width:760px}.assignment-checkpoint>a{font-size:11px;font-weight:700;text-decoration:none;color:#17304d;border-bottom:1px solid currentColor;padding:5px 0;white-space:nowrap}.final-checkpoint{border-left-color:#9b6d28}.final-checkpoint .checkpoint-number{font-family:var(--sans);font-size:15px}
.closing-synthesis{padding:34px 38px;background:#fffaf0;color:#27231d;border:1px solid rgba(23,23,19,.15)}.closing-synthesis p{font-size:15px;line-height:1.75;color:#5c554b}.closing-synthesis blockquote{margin:26px 0;padding:20px 0;border-top:1px solid rgba(23,23,19,.15);border-bottom:1px solid rgba(23,23,19,.15);font:400 24px/1.45 var(--serif);color:#1f2f43}.assignment-submit-card{margin-top:28px;padding:34px 38px;border:1px solid rgba(212,181,108,.45);background:rgba(255,255,255,.055);color:#fff}.assignment-submit-card h3{font:400 28px/1.2 var(--serif);margin:0 0 10px}.assignment-submit-card>p:not(.exhibit-kicker){color:rgba(255,255,255,.72);font-size:13px;line-height:1.65}.assignment-button-large{margin-top:10px;padding:16px 22px;font-size:13px}
@media(max-width:900px){.assignment-launch-card{grid-template-columns:58px 1fr}.assignment-launch-card>.assignment-button{grid-column:2;justify-self:start}.assignment-checkpoint{grid-template-columns:48px 1fr}.assignment-checkpoint>a{grid-column:2;justify-self:start}.assignment-float strong{display:none}.assignment-float{width:46px;height:46px;padding:0;justify-content:center;border-radius:50%;right:14px;bottom:14px}.assignment-float span{font-size:18px}}
@media(max-width:600px){.assignment-launch{padding:28px 0}.assignment-launch-card{grid-template-columns:1fr;padding:24px;gap:16px}.assignment-launch-icon{width:48px;height:48px}.assignment-launch-card>.assignment-button{grid-column:1;width:100%}.assignment-workflow i{display:none}.assignment-workflow{display:grid;grid-template-columns:1fr 1fr;gap:9px}.assignment-checkpoint{grid-template-columns:1fr;padding:22px;margin-top:42px}.checkpoint-number{width:42px;height:42px}.assignment-checkpoint>a{grid-column:1}.closing-synthesis,.assignment-submit-card{padding:25px}.assignment-submit-card .assignment-button{width:100%}}

/* Phase 2.3 · final flagship exhibit refinements */
.founding-puzzle{margin:30px 0 22px;padding:22px 24px;border-left:4px solid var(--exhibit-red);background:#f2eadc;max-width:850px}.founding-puzzle>span,.transition-question>span,.historian-warning>span{display:block;margin-bottom:8px;font:700 9px/1.3 var(--sans);letter-spacing:.13em;text-transform:uppercase;color:var(--exhibit-red)}.founding-puzzle strong{display:block;font:400 24px/1.35 var(--serif);color:#211e19}.founding-puzzle p{margin:10px 0 0;font-size:13px;line-height:1.65;color:#625b51}
.document-classifier{margin-top:38px;padding:27px 30px;border:1px solid rgba(23,23,19,.16);background:#fffaf0;display:grid;grid-template-columns:minmax(250px,.9fr) 1.1fr;gap:26px}.document-classifier h3{margin:0;font:400 23px/1.35 var(--serif);color:#27231d}.classifier-choices{display:grid;grid-template-columns:1fr 1fr;gap:12px}.classifier-choices button{appearance:none;text-align:left;padding:17px 18px;border:1px solid rgba(23,23,19,.2);background:#fff;color:#27231d;cursor:pointer}.classifier-choices button strong,.classifier-choices button span{display:block}.classifier-choices button strong{font:700 13px/1.4 var(--sans)}.classifier-choices button span{margin-top:5px;font:400 12px/1.45 var(--serif);color:#6a6257}.classifier-choices button.selected{border-color:#8f6b2e;background:#f4ead4;box-shadow:inset 0 0 0 1px #8f6b2e}.classifier-choices button.incorrect{border-color:#96534d;background:#f6e9e6}.classifier-feedback{grid-column:1/-1;margin:0;padding-top:15px;border-top:1px solid rgba(23,23,19,.14);font-size:12px;line-height:1.6;color:#61594f}.classifier-feedback strong{color:#24364c}
.logic-chain button.visited{border-color:#b68b3f;background:#f3e6cb}.chain-assembled{margin:16px 0 0;padding:18px 22px;background:#1f3045;color:#fff;border-left:4px solid #c9a251}.chain-assembled small{display:block;margin-bottom:7px;font:700 9px/1.3 var(--sans);text-transform:uppercase;letter-spacing:.13em;color:#ddc681}.chain-assembled strong{font:400 17px/1.55 var(--serif)}
.transition-question{margin-top:28px;padding:24px 28px;border:1px solid rgba(255,255,255,.17);background:rgba(255,255,255,.05);color:#fff}.transition-question>span{color:#d4b56c}.transition-question strong{display:block;font:400 23px/1.35 var(--serif)}.transition-question p{margin:10px 0 0;max-width:800px;color:rgba(255,255,255,.7);font-size:12px;line-height:1.65}
.framework-formula{display:flex;align-items:center;justify-content:center;gap:11px;flex-wrap:wrap;margin:0 0 26px;padding:16px 20px;border:1px solid rgba(23,23,19,.16);background:#f1e8d8}.framework-formula span{padding:7px 10px;background:#fffaf0;border:1px solid rgba(23,23,19,.12);font:700 10px/1.3 var(--sans);text-transform:uppercase;letter-spacing:.06em}.framework-formula i{font-style:normal;color:#a2762d;font-size:18px}
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