@font-face{font-family:Source Sans 3;src:url('fonts/SourceSans3-Regular.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:Source Sans 3;src:url('fonts/SourceSans3-Semibold.ttf') format('truetype');font-weight:600;font-display:swap}
:root{--ink:#14243b;--blue:#1e3a8a;--green:#147d52;--paper:#fafaf6;--muted:#506171;--line:#c5cecb;--wash:#edf1ed}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:400 19px/1.48 'Source Sans 3',Arial,sans-serif}button,input,textarea{font:inherit}a{color:var(--blue);text-underline-offset:.2em}button{min-height:48px;padding:12px 22px;border:2px solid var(--blue);background:var(--blue);color:white;border-radius:4px;font-weight:600;cursor:pointer}button:hover{background:#142b69}button:disabled{opacity:.45;cursor:default}.secondary{background:transparent;color:var(--blue)}.secondary:hover{background:#e6ebf3}.text-button{background:transparent;color:var(--blue);border:0;text-decoration:underline;padding:8px 0}.text-button:hover{background:transparent}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--green);outline-offset:4px}h1:focus{outline:none}h1:focus-visible{outline:3px solid var(--green);outline-offset:6px}
.warning{background:var(--ink);color:#fff;text-align:center;padding:12px 22px;font-size:14px;font-weight:600;letter-spacing:.025em}.masthead{max-width:1240px;margin:auto;padding:30px 36px 24px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{text-decoration:none;font-size:23px;font-weight:600;letter-spacing:.06em;color:var(--green)}.brand span{font-size:15px;letter-spacing:.03em}.edition{font-size:13px;letter-spacing:.1em;color:var(--muted)}.edition b{color:var(--green);margin:0 8px}main{max-width:1240px;margin:auto;padding:26px 36px 40px}.progress-head{font-size:15px;display:flex;justify-content:space-between;gap:16px}.muted{color:var(--muted)}.progress{list-style:none;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin:18px 0 32px}.progress li{border-top:3px solid var(--line);padding-top:9px;font-size:15px;color:var(--muted)}.progress li span{margin-right:8px}.progress li[aria-current]{border-color:var(--green);color:var(--green);font-weight:600}.progress .visited{border-color:#87a798}
.stage{animation:arrive .18s ease-out}.kicker{font-size:14px;letter-spacing:.12em;font-weight:600;color:var(--green);margin:0 0 12px}h1{font-size:clamp(32px,4.5vw,56px);line-height:1.06;letter-spacing:-.035em;font-weight:600;margin:0 0 22px;max-width:840px}h2{font-size:25px;line-height:1.2;margin:0 0 15px;font-weight:600}p{margin:0 0 17px}.lead{font-size:22px;max-width:750px}.scene-layout{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(260px,.8fr);gap:28px;align-items:start}.visual{margin:0;min-width:0;border:1px solid var(--line);background:var(--paper)}.visual img{display:block;width:100%;height:auto}.visual figcaption{border-top:1px solid var(--line);padding:12px 18px;font-size:16px;color:var(--muted)}.visual svg{display:block;width:100%;height:auto}.facts{padding-top:12px}.fact{border-left:3px solid var(--green);padding:0 0 0 16px;margin-bottom:24px}.fact strong{font-size:14px;letter-spacing:.09em;display:block;color:var(--green);margin-bottom:5px}.fact p{margin:0}.small{font-size:16px;color:var(--muted)}details{margin-top:16px}summary{cursor:pointer;color:var(--blue);font-weight:600;padding:10px 0;min-height:44px}details p{padding:4px 0 0;font-size:18px}.notice{padding:18px 20px;background:var(--wash);border-left:3px solid var(--green);font-size:18px}.notice strong{display:block}.prompt{margin-top:24px}.prompt textarea{display:block;width:100%;margin-top:10px;min-height:92px;resize:vertical;padding:12px;border:1px solid #748383;background:white;color:var(--ink);border-radius:3px}.prompt label{font-weight:600}.navigation{display:flex;align-items:center;gap:20px;border-top:1px solid var(--line);padding-top:24px;margin-top:32px}.navigation #nav-note{font-size:15px;color:var(--muted);flex:1}.navigation #next{margin-left:auto}
fieldset{border:0;margin:0;padding:0;min-width:0}legend{font-size:23px;font-weight:600;padding:0;margin-bottom:16px}.choices{display:grid;gap:12px}.choice{display:flex;gap:14px;align-items:flex-start;border:1px solid #9daeb0;background:white;padding:18px;cursor:pointer;border-radius:4px}.choice:has(input:checked){border:2px solid var(--blue);padding:17px;background:#edf1f9}.choice input{width:21px;height:21px;flex:0 0 21px;margin:3px 0 0;accent-color:var(--blue)}.choice .letter{font-weight:600;color:var(--blue);display:block;font-size:14px;letter-spacing:.08em;margin-bottom:4px}.decision-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px}.decision-layout .visual{align-self:start}.error{color:#9e2525;font-weight:600;margin:14px 0 0}.feedback{padding:22px;background:var(--wash);border-left:4px solid var(--green);margin-bottom:24px}.feedback h2{margin-bottom:8px}.view-buttons{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}.view-buttons button{font-size:17px;min-height:44px;padding:8px 15px}.view-buttons button[aria-pressed=false]{background:transparent;color:var(--blue)}.annotation{display:grid;grid-template-columns:36px 1fr;gap:12px;margin:22px 0}.number{width:32px;height:32px;border:1.5px solid var(--blue);border-radius:50%;color:var(--blue);display:flex;align-items:center;justify-content:center;font-weight:600}.annotation strong{font-size:14px;letter-spacing:.08em;color:var(--blue);display:block}.annotation p{margin:5px 0 0}.transfer-card{padding:28px;background:#e9eeed;border-top:4px solid var(--green);margin-bottom:24px}.transfer-card .quote{font-size:clamp(25px,3vw,36px);line-height:1.2;max-width:780px;margin:15px 0}.transfer-card p{max-width:780px}.transfer-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.checklist{padding-left:23px}.checklist li{margin-bottom:12px}.complete{padding:18px;border:1px solid var(--green);margin-top:20px}.hidden,[hidden]{display:none!important}footer{max-width:1240px;margin:auto;border-top:1px solid var(--line);padding:24px 36px 36px;display:flex;flex-wrap:wrap;gap:14px 32px;font-size:14px;color:var(--muted)}footer span{letter-spacing:.07em}footer p{max-width:900px;margin:0}.skip{position:absolute;top:-100px;left:16px;padding:12px;background:white;z-index:5}.skip:focus{top:12px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@keyframes arrive{from{opacity:.6;transform:translateY(5px)}to{opacity:1;transform:none}}
@media(max-width:760px){body{font-size:18px}.warning{font-size:12px;line-height:1.5;padding:10px 16px}.masthead{padding:22px 20px 18px}.brand{font-size:20px}.edition{display:none}main{padding:22px 20px 28px}.progress-head{font-size:13px}.progress-head .muted{display:none}.progress{gap:5px;margin:15px 0 25px}.progress li{font-size:12px}.progress li span{display:block;margin:0 0 2px;font-size:14px}.scene-layout,.decision-layout,.transfer-grid{grid-template-columns:1fr;gap:20px}.lead{font-size:20px}h1{font-size:36px;line-height:1.08;margin-bottom:18px}.facts{padding-top:0}.fact{margin-bottom:18px}.visual figcaption{font-size:15px;padding:10px 13px}.navigation{flex-wrap:wrap;gap:12px;padding-top:20px}.navigation #nav-note{flex-basis:100%;order:3}.navigation button{font-size:17px;padding:11px 16px}.transfer-card{padding:21px}.choice{padding:16px}.choice:has(input:checked){padding:15px}footer{padding:22px 20px;font-size:14px}.notice{padding:16px;font-size:17px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media print{.warning{color:black;border:2px solid black}.navigation,.view-buttons{display:none}body{font-size:12pt}main{padding:12px}.masthead{padding:12px}}
/* Gate 4E: compact decision context, no sticky panel that could obscure zoomed text. */
select{font:inherit;color:var(--ink);background:white;border:1px solid #748383;border-radius:3px;min-height:48px;max-width:100%;padding:8px;width:100%}select:focus-visible{outline:3px solid var(--green);outline-offset:4px}.decision-context{border-left:3px solid var(--green);padding:12px 16px;background:var(--wash);margin-bottom:18px;font-size:18px;line-height:1.4}.decision-context p{margin:8px 0 0}.reason-field,.mode{margin-bottom:24px}.mode .choices{grid-template-columns:1fr 1fr}.rubric-inputs{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:22px 0}.rubric-inputs label{font-weight:600}.rubric-inputs select{margin-top:8px}#transfer-check{margin:20px 0 0}.stage-3 .visual figcaption{font-size:14px;line-height:1.35}.stage-3 .letter{display:inline;margin-right:8px}.stage-3 .choice{padding:13px 15px}.stage-3 .choice:has(input:checked){padding:12px 14px}#transfer-feedback:focus-visible,#complete:focus-visible{outline:3px solid var(--green);outline-offset:4px}
@media(max-width:760px){.stage-3 .kicker{display:none}.stage-3 .decision-layout{gap:10px}.stage-3 .visual figcaption{padding:8px 10px}.stage-3 .text-button{padding:4px 0;min-height:44px}.decision-context{padding:10px 13px;font-size:17px;margin-bottom:14px}.decision-context .small{font-size:14px}.stage-3 legend{font-size:21px;margin-bottom:12px}.stage-3 .choice{padding:12px}.stage-3 .choice:has(input:checked){padding:11px}.stage-3 .choices{gap:9px}.mode .choices,.rubric-inputs{grid-template-columns:1fr}.navigation #next{max-width:100%}}

/* Visual-first candidate: original geometry and native editable annotation layers. */
.logo-window{display:block;width:220px;max-width:100%;aspect-ratio:1018/181;overflow:hidden;position:relative}.logo-window img{position:absolute;width:100.59%;height:auto;left:0;top:-222.65%}.masthead{padding-top:18px;padding-bottom:18px}.edition{letter-spacing:.04em}.progress{margin-bottom:22px}.kicker{margin-bottom:8px}.art-board{position:relative}.scene-labels span,.transfer-labels span{position:absolute;transform:translate(-50%,-50%);background:#fafaf6;border:1px solid #83949c;padding:3px 7px;font-size:clamp(12px,1.2vw,17px);line-height:1.2;white-space:nowrap;color:#14243b}.region{position:absolute;transform:translate(-50%,-50%);min-width:44px;min-height:44px;padding:7px 10px;background:#fafaf6;color:#1e3a8a;border:2px solid #1e3a8a;display:flex;align-items:center;gap:6px;line-height:1.1;font-size:16px;box-shadow:0 1px 3px #14243b22}.region[aria-pressed=true]{background:#1e3a8a;color:white}.region[aria-pressed=true]::after{content:'✓';font-weight:600}.region:hover{background:#e5eaf5;color:#14243b}.spatial-pin{position:absolute;transform:translate(-50%,-50%);display:grid;place-items:center;width:34px;height:34px;border:2px solid #1e3a8a;border-radius:50%;background:#fafaf6;color:#1e3a8a;font-weight:600;font-size:20px}.explain-layout{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(0,1fr);gap:24px;align-items:start;margin-bottom:24px}.explanation-beat{padding:20px;background:#edf1ed;border-left:3px solid #1e3a8a}.beat-controls{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0 12px}.beat-controls button{font-size:17px;padding:9px 12px}.explanation-beat .small{margin:0}.transfer-intro{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:24px;margin-bottom:24px;align-items:start}.transfer-card{padding:20px;margin:0}.transfer-card .quote{font-size:27px}.decision-context ul{padding-left:19px;margin:7px 0}.decision-context li{margin-bottom:4px}.support{margin:16px 0}select:focus-visible{outline:3px solid #147d52;outline-offset:4px}.feedback{margin-top:20px}.stage-2 .prompt{margin-top:0}.transfer-visual img{aspect-ratio:1000/670}.transfer-labels span{font-size:clamp(12px,1.2vw,16px)}
@media(max-width:760px){.masthead{padding:15px 18px}.logo-window{width:190px}main{padding:18px 16px 24px}.progress{margin:12px 0 18px}.progress li{font-size:12px}h1{font-size:32px}.scene-layout{gap:14px}.fact{margin-bottom:12px}.facts{font-size:17px}.visual figcaption{font-size:14px;line-height:1.3;padding:8px 10px}.scene-labels span{font-size:13px;padding:3px 5px}.region{font-size:14px;padding:5px;gap:4px}.region span{max-width:75px;white-space:normal}.explain-layout,.transfer-intro{grid-template-columns:1fr;gap:14px}.explanation-beat{padding:14px}.explanation-beat h2{font-size:23px}.explanation-beat p{margin-bottom:10px}.spatial-pin{width:28px;height:28px;font-size:17px}.decision-layout .visual img{max-height:190px;object-fit:contain}.stage-3 .decision-visual{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:start}.stage-3 .decision-visual .text-button{font-size:15px;max-width:70px;text-align:left;line-height:1.2}.stage-3 .decision-context{font-size:16px;padding:10px;margin-bottom:12px}.stage-3 .decision-context .small{font-size:14px}.stage-3 .choice{font-size:17px;line-height:1.35;padding:10px}.stage-3 .choice:has(input:checked){padding:9px}.stage-3 .choices{gap:8px}.stage-3 legend{font-size:20px;margin-bottom:9px}.transfer-card{padding:14px;font-size:17px}.transfer-card .quote{font-size:23px}.transfer-intro{margin-bottom:18px}.transfer-labels span{font-size:13px;white-space:normal;max-width:125px}.view-buttons button{font-size:16px}.mode .choice{padding:12px}.navigation{margin-top:24px}.small{line-height:1.4}}
@media(max-width:350px){.region span{max-width:60px}.scene-labels span{font-size:12px}.stage-3 .decision-visual{grid-template-columns:1fr}.stage-3 .decision-visual .text-button{max-width:none;min-height:44px}.stage-3 .visual img{max-height:170px}.beat-controls button{font-size:15px}.logo-window{width:170px}}
.region-key{display:flex;flex-wrap:wrap;gap:6px 16px;margin-bottom:8px;color:#14243b;font-size:16px}.region-key b{color:#1e3a8a;margin-right:4px}.region{justify-content:center;min-width:44px}footer details{margin:0}footer summary{font-size:14px;padding:0;min-height:30px}
/* Targeted rc2 correction: close transfer composition and neutral numbered key. */
.transfer-visual img{aspect-ratio:650/560}.transfer-key{display:grid;gap:5px;margin-bottom:10px;color:var(--ink);font-size:17px}.transfer-key span{display:flex;gap:8px;align-items:baseline}.transfer-key b{color:var(--blue);min-width:14px}.transfer-pin{pointer-events:none}@media(max-width:760px){.transfer-key{font-size:16px}.transfer-pin{width:28px;height:28px}}

/* Worker-first: identical visual treatment for all choices, not correctness cues. */
.option-content{display:grid;grid-template-columns:88px minmax(0,1fr);gap:12px;align-items:center}.option-content strong{display:block;font-weight:600}.option-detail{display:block;font-size:17px;margin-top:4px}.option-picture{width:88px;height:72px;object-fit:contain;filter:grayscale(1);background:#f2f3ef;border:1px solid #c5cecb}.choice>span{min-width:0;width:100%}.stage-3 .letter{display:block;font-size:13px;margin:0 0 4px}.exposure-comparison{display:grid;grid-template-columns:1fr 1fr;gap:14px}.exposure-comparison h2{font-size:21px;margin:0 0 10px}.comparison-note{border-left:3px solid #1e3a8a;padding:10px 13px;font-size:17px;background:#edf1ed}.stage-4:has(.exposure-comparison) .explain-layout{grid-template-columns:1fr}.exposure-comparison .visual figcaption{font-size:15px}.feedback details{margin:0 0 10px}.feedback details summary{font-size:16px}.feedback details p{font-size:17px}
@media(max-width:760px){.option-content{grid-template-columns:66px minmax(0,1fr);gap:9px}.option-picture{width:66px;height:58px}.option-detail{font-size:16px;line-height:1.35}.stage-3 .choice{font-size:17px}.exposure-comparison{grid-template-columns:1fr;gap:18px}.exposure-comparison h2{font-size:21px}.comparison-note{font-size:16px}.stage-4:has(.exposure-comparison) .explanation-beat{margin-top:0}.transfer-card .small{font-size:16px}}