:root{color-scheme:light;--paper:#e9efe8;--ink:#173937;--muted:#4f6965;--line:#98afa7;--sea:#b6d7cc;--accent:#225c58;--yellow:#d9bd76;--white:#f9faf4;font-family:Georgia,'Times New Roman',serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);overflow-x:hidden}button,input,select{font:inherit}button,a,select,input{touch-action:manipulation}button,a{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #a25e2d;outline-offset:4px}a{color:inherit}button{border:1px solid var(--ink);border-radius:0;background:transparent;color:var(--ink);min-height:44px;padding:10px 16px}button:hover,a:hover{background:#cfdfd5}button:disabled{opacity:.45;cursor:not-allowed}.skip{position:absolute;top:-90px;left:10px;z-index:30;background:white;padding:15px}.skip:focus{top:8px}.mast{min-height:72px;padding:12px clamp(18px,4vw,72px);border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:16px}.brand{text-decoration:none;font:bold 13px system-ui;letter-spacing:.14em}.brand span{font-weight:400}.mast-actions{display:flex;align-items:center;gap:9px}.mast-actions button,.escape{font:600 12px system-ui;padding:12px;border:1px solid var(--line);text-decoration:none;min-height:44px;display:inline-flex;align-items:center}.escape{background:#fffbe9;border:2px solid var(--ink)}main{max-width:1600px;margin:auto}.folio{display:flex;justify-content:space-between;padding:16px clamp(18px,4vw,72px);border-bottom:1px solid var(--line);font:600 10px system-ui;letter-spacing:.14em;gap:10px}.intro{display:grid;grid-template-columns:1.5fr 1fr;min-height:680px;border-bottom:1px solid var(--line)}.intro-copy{padding:clamp(35px,7vw,112px) clamp(20px,5vw,80px)}.eyebrow,.micro,.mini,.section-head span,.turn-counter span,.turn-counter strong,.weather-stamp,.rule-caption{font:600 11px system-ui;letter-spacing:.13em;text-transform:uppercase}.eyebrow{color:#42635e}.intro h1{font-size:clamp(63px,9vw,153px);line-height:.85;letter-spacing:-.08em;font-weight:400;margin:25px 0 35px}.intro h1 em{font-weight:400;color:#617e69}.deck{font-size:clamp(19px,2vw,27px);line-height:1.42;max-width:650px}.mini{max-width:560px;font-size:12px;line-height:1.6;letter-spacing:.02em}.intro-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-top:35px}.primary{background:var(--ink);color:var(--white);padding:17px 22px;font:650 13px system-ui;letter-spacing:.05em}.primary:hover{background:#31665e}.text-link{padding:12px;font:600 13px system-ui}.illustration{border-left:1px solid var(--line);background:radial-gradient(circle at 60% 44%,#f6f3df,#cee1da 60%,#a9cbbd);position:relative;display:grid;place-items:center;min-height:390px;overflow:hidden}.rings{height:min(34vw,480px);width:min(34vw,480px);min-width:270px;min-height:270px;position:relative;display:grid;place-items:center}.rings i{position:absolute;border:1px solid #5d9387;border-radius:50%;width:100%;height:100%}.rings i:nth-child(2){width:76%;height:76%;transform:rotate(20deg) scaleX(.84)}.rings i:nth-child(3){width:48%;height:48%;transform:rotate(-18deg) scaleX(.9)}.rings b{font-size:100px;font-weight:normal;color:#4c8a7d}.illustration span{position:absolute;bottom:35px;right:35px;font:600 11px system-ui;text-align:right;letter-spacing:.15em}.workspace,.report,.method{padding:70px clamp(18px,4vw,72px);border-bottom:1px solid var(--line)}.case-head{display:flex;justify-content:space-between;gap:30px}.case-head h2,.method h2,.report h2,.exit-chamber h2{font-size:clamp(36px,5vw,70px);line-height:1.03;font-weight:400;letter-spacing:-.045em;margin:15px 0 30px}.case-head>p{max-width:290px;line-height:1.55}.selectors{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.case-card{display:flex;flex-direction:column;gap:14px;text-align:left;background:#f8faf4;padding:24px;min-height:175px;border:1px solid var(--line)}.case-card[aria-pressed=true]{border:3px solid var(--ink);background:#d4e6dd}.case-card b{font-size:24px;font-weight:normal}.case-card span{font:12px/1.6 system-ui}.settings{display:flex;flex-wrap:wrap;align-items:end;gap:15px;margin:20px 0 45px}.settings label{display:grid;gap:9px;font:600 12px system-ui}.settings select,.settings input{background:#fff;padding:12px;min-height:48px;border:1px solid var(--line);max-width:100%;color:var(--ink)}.settings #seed{width:120px}.status-band{border-top:2px solid var(--ink);padding-top:30px;display:flex;justify-content:space-between;gap:20px}.status-band h2{font-size:clamp(29px,4vw,55px);font-weight:400;margin:12px 0}.scene{max-width:800px;font-size:18px;line-height:1.5}.turn-counter{min-width:100px;text-align:right}.turn-counter strong{font-size:22px;display:block;margin-top:10px}.observatory{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(300px,.85fr);gap:22px;margin-top:28px}.chart,.action-panel,.ledger{border:1px solid var(--line);background:#f3f6ee;padding:clamp(16px,2vw,30px);min-width:0}.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line);padding-bottom:15px}.section-head h3{margin:0;font-weight:400;font-size:25px}.weather-map{position:relative;min-height:330px;overflow:hidden;background:repeating-linear-gradient(0deg,transparent 0 43px,#b8d0c83a 44px),repeating-linear-gradient(90deg,transparent 0 43px,#b8d0c83a 44px),linear-gradient(135deg,#d8e9db,#abcfc9);margin-top:18px;border:1px solid #95b3a9}.isobars{position:absolute;inset:0;pointer-events:none}.isobars i{position:absolute;border:2px solid #447e7b8a;border-radius:48% 52% 44% 56%;height:210px;width:350px;top:15%;left:15%;transform:rotate(-17deg)}.isobars i:nth-child(2){inset:25% auto auto 25%;height:145px;width:260px}.isobars i:nth-child(3){inset:35% auto auto 37%;height:75px;width:140px}.map-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(2,1fr);min-height:330px;gap:14px;padding:26px}.person{min-width:0;align-self:center;background:#f9fbefdd;border:1px solid #62928b;padding:10px;font:600 12px system-ui;box-shadow:3px 3px 0 #7da7a64d}.person small{display:block;font-weight:400;font-size:11px;margin-top:3px}.wind{position:absolute;right:30%;top:30%;font-size:80px;color:#2e736c88;transition:transform .5s}.weather-stamp{position:absolute;bottom:6px;left:10px;background:#f5f8e9d9;padding:6px;z-index:3;font-size:9px}.map-alt{font:13px/1.6 system-ui;padding:8px 0}.gauges{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.gauge{font:12px system-ui}.gauge .label{display:flex;justify-content:space-between}.track{height:8px;background:#d0ddd6;margin-top:6px}.track>i{display:block;height:100%;background:#346b69;transition:width .4s}.micro{color:#4f6965;font-size:10px;line-height:1.5;letter-spacing:.04em}.prompt{font-size:clamp(19px,2vw,27px);line-height:1.4}.actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.action{min-height:90px;text-align:left;background:white;padding:12px;display:flex;flex-direction:column;justify-content:center;gap:8px;font:600 14px system-ui}.action small{font:12px/1.4 system-ui;color:var(--muted)}.action:hover{background:#dae9df}.action-note{font:13px/1.5 system-ui;margin-top:19px;border-left:3px solid var(--yellow);padding:10px;background:#f7f5e9}.ledger{margin-top:22px}.ledger ol{margin:20px 0 0;padding-left:25px;font:14px/1.65 system-ui}.ledger li{padding:9px 3px;border-bottom:1px dashed var(--line)}.sim-footer{display:flex;gap:15px;align-items:center;margin-top:20px}.secondary,.linkbutton{background:#f5f8f0;border:1px solid var(--ink);padding:13px 18px;text-decoration:none;font:600 13px system-ui;display:inline-flex;align-items:center;min-height:44px}.report{background:#dfe9e2}.report .small{font-size:19px}.report-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:30px 0}.report-card{border-top:2px solid var(--ink);padding:18px;background:#f5f7ee;min-height:150px}.report-card h3{font:600 12px system-ui;text-transform:uppercase;letter-spacing:.12em}.report-card p{font-size:18px;line-height:1.5}.report-controls{display:flex;flex-wrap:wrap;gap:10px}.exit-chamber{background:#173937;color:#ebf1e6;padding:clamp(20px,4vw,65px);margin-top:65px}.exit-chamber .eyebrow{color:#c1d6c9}.exit-chamber section{border-top:1px solid #658782;padding:18px 0}.exit-chamber section h3{font-size:24px;font-weight:400}.exit-chamber p{line-height:1.65}.doors{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.doors a{border:1px solid #719c91;padding:16px;text-decoration:none;min-height:92px}.doors a:hover,.last-doors a:hover{color:#173937;background:#e8eee4}.doors b{display:block;font:600 16px system-ui}.doors span{font:12px/1.5 system-ui;display:block;margin-top:9px;color:#d0ded3}.doors a:hover span{color:#173937}.sources a{color:#d7eac5}.last-doors{display:flex;gap:10px;flex-wrap:wrap}.last-doors a{padding:17px;border:1px solid #8bb5a3;font:600 13px system-ui;text-decoration:none}.method{max-width:1600px}.method>p{max-width:800px;font-size:17px;line-height:1.6}details{background:#f8faf4;border:1px solid var(--line);margin:25px 0}summary{padding:22px;font:600 15px system-ui;cursor:pointer;min-height:54px}.rules{padding:20px;overflow-x:auto;font:13px/1.6 system-ui}.rules table{border-collapse:collapse;min-width:740px;width:100%}.rules td,.rules th{padding:9px;border:1px solid var(--line);text-align:center}.rules td:first-child{text-align:left}.note{font:13px/1.7 system-ui!important}footer{display:flex;gap:24px;flex-wrap:wrap;align-items:center;justify-content:space-between;padding:35px clamp(18px,4vw,72px);font:600 12px system-ui}footer a{padding:10px}.sr-only{position:absolute;width:1px;height:1px;clip:rect(0,0,0,0);overflow:hidden;white-space:nowrap}[hidden]{display:none!important}body.motion-off *,body.motion-off *:before,body.motion-off *:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}@media (prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}@media(max-width:850px){.intro{grid-template-columns:1fr}.illustration{border-left:0;border-top:1px solid var(--line);min-height:280px}.rings{height:220px;width:220px;min-height:220px;min-width:220px}.observatory{grid-template-columns:1fr}.case-head{display:block}.selectors{grid-template-columns:1fr}.case-card{min-height:90px;padding:16px}.report-grid{grid-template-columns:1fr}.folio span:nth-child(2){display:none}}@media(max-width:510px){.mast{align-items:flex-start}.brand span{display:none}.mast-actions{gap:4px}.mast-actions button,.escape{font-size:10px;padding:10px}.intro h1{font-size:clamp(51px,13vw,75px)}.intro{min-height:auto}.intro-copy{padding:60px 20px}.folio{font-size:9px}.weather-map,.map-grid{min-height:310px}.map-grid{gap:7px;padding:14px 9px}.person{padding:7px;font-size:11px}.person small{font-size:10px}.actions{grid-template-columns:1fr}.action{min-height:65px}.doors{grid-template-columns:1fr}.sim-footer{flex-wrap:wrap}.status-band{display:block}.turn-counter{text-align:left}.settings label:first-child{width:100%}.settings select{width:100%}.section-head h3{font-size:21px}}@media print{header,.intro,.workspace,.method,footer,.report-controls{display:none!important}.report{display:block!important;padding:0;background:white}.exit-chamber{color:black;background:white;margin:30px 0;padding:0}.doors a{color:black;border:1px solid #777}.doors span{color:black}.sources a{color:black}.report-grid{grid-template-columns:repeat(2,1fr)}a{color:black}}
/* VERSION 2 — field library, report comparison and causal instrument layers */
.top-nav{display:flex;gap:4px;align-items:center;font:600 11px system-ui;letter-spacing:.04em}.top-nav a{padding:12px 10px;text-decoration:none;border-bottom:1px solid transparent}.top-nav a:hover{border-color:var(--ink);background:transparent}
.mast{flex-wrap:wrap}.intro{min-height:630px}.illustration .rings i{animation:measure 12s ease-in-out infinite alternate;transform-origin:center}.illustration .rings i:nth-child(2){animation-duration:9s}.illustration .rings i:nth-child(3){animation-duration:15s}@keyframes measure{from{opacity:.6}to{opacity:1}}
.fact-pocket{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;max-width:800px;margin:16px 0 8px}.fact-pocket>div{background:#f7faf2;border-left:3px solid #60877c;padding:14px;font:12px/1.55 system-ui}.fact-pocket>div:nth-child(2){border-color:#ac9561}.fact-pocket b,.fact-pocket span{display:block}.fact-pocket b{font-size:11px;letter-spacing:.07em;text-transform:uppercase;margin-bottom:7px}
.observation-label{font:700 11px system-ui;letter-spacing:.12em;text-transform:uppercase;color:#366e64;margin:22px 0 0}.cost-watch{border-left:4px solid #aa9869;padding:12px 14px;margin:18px 0;background:#fcf9ec;font:13px/1.55 system-ui}.cost-watch b,.cost-watch span{display:block}.cost-watch b{font-size:11px;letter-spacing:.06em;margin-bottom:5px;text-transform:uppercase}.time-slip{font:600 12px/1.5 system-ui;border-top:1px solid var(--line);padding-top:12px;margin-top:16px;color:#345651}
.isobars{transform:scale(var(--pressure-scale,1));transition:transform .6s ease;transform-origin:50% 50%}.wind{opacity:var(--wind-opacity,.24);will-change:transform;pointer-events:none}.weather-map:before{content:'';position:absolute;inset:0;background-image:linear-gradient(90deg,#48776a12 1px,transparent 1px),linear-gradient(#48776a12 1px,transparent 1px);background-size:36px 36px;pointer-events:none}
.parallel{margin:20px 0 28px;background:#eff5eb;padding:clamp(18px,3vw,34px);border:1px solid var(--line)}.parallel h3{font:400 clamp(27px,3vw,39px) Georgia,serif;margin:8px 0}.parallel>p{font:14px/1.6 system-ui;max-width:850px}.parallel-table{max-width:100%;overflow-x:auto}.parallel-table table{width:100%;border-collapse:collapse;margin:17px 0;font:13px/1.4 system-ui;min-width:560px}.parallel-table th,.parallel-table td{padding:14px 10px;text-align:right;border-bottom:1px solid #aac2b8}.parallel-table th:first-child{text-align:left}.parallel-table .norm-current{background:#d2e7dc;font-weight:700}.parallel-table caption{text-align:left;padding-bottom:10px;font-size:12px;color:#3b5f5a}
.library,.reading{padding:clamp(46px,7vw,105px) clamp(18px,5vw,92px);border-bottom:1px solid var(--line)}.library{background:#173937;color:#edf4e9}.library .eyebrow,.library .lens-number{color:#b9d7c7}.library-head{max-width:1050px;padding-bottom:45px}.library-head h2,.reading h2{font:400 clamp(44px,6.5vw,92px)/1.02 Georgia,serif;letter-spacing:-.045em;margin:15px 0 25px}.library-head p:last-child{font:clamp(18px,2vw,24px)/1.5 Georgia,serif;max-width:830px}.lens{display:grid;grid-template-columns:minmax(145px,.3fr) minmax(0,1fr);gap:32px;border-top:1px solid #7aa395;padding:28px 0 40px}.lens-number{font:600 11px system-ui;letter-spacing:.13em;padding:7px 0}.lens h3{font:400 clamp(27px,3.4vw,46px)/1.16 Georgia,serif;letter-spacing:-.03em;margin:0 0 14px}.lens>div>p{max-width:820px;font:clamp(16px,1.7vw,20px)/1.55 Georgia,serif;margin:9px 0}.lens .lens-question{font:14px/1.55 system-ui;color:#d2e6d8;margin:22px 0 0;border-left:2px solid #c2a96f;padding-left:15px}.field-bridge{background:#e2eee2;color:#153932;padding:clamp(22px,4vw,54px);margin-top:36px;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(220px,.8fr);gap:25px;align-items:center}.field-bridge h3{font:400 clamp(26px,3vw,42px) Georgia,serif;margin:14px 0}.field-bridge p:not(.eyebrow){font:15px/1.6 system-ui;max-width:690px}.bridge-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.bridge-actions .primary{min-height:48px}.linkbutton.primary{color:white;text-decoration:none}.reading{background:#f2f3e9}.reading h2{max-width:1050px}.reading-intro{font:17px/1.65 system-ui;max-width:880px}.filterbar{display:flex;gap:8px;flex-wrap:wrap;margin:28px 0 15px}.filter{font:700 12px system-ui;min-height:44px;border-radius:999px;padding:10px 18px;background:#fdfef5}.filter[aria-pressed=true]{color:white;background:#173937;border-color:#173937}.countline{font:600 11px system-ui;letter-spacing:.08em;color:#345d55}.reading-list{padding:0;list-style:none;margin:26px 0 10px;border-top:2px solid var(--ink)}.reading-item{display:grid;grid-template-columns:minmax(125px, .23fr) minmax(0,1fr);gap:22px;padding:24px 4px 26px;border-bottom:1px solid var(--line)}.read-index{font:700 11px system-ui;letter-spacing:.1em;color:#436b63;padding-top:9px}.reading-item h3{font:400 clamp(21px,2.3vw,32px)/1.25 Georgia,serif;margin:0}.reading-item h3 a{text-underline-offset:5px}.reading-item p{font:14px/1.65 system-ui;margin:9px 0 0;max-width:850px}.reading-item .byline{text-transform:uppercase;letter-spacing:.08em;font-size:10px;color:#436b63;font-weight:700}.reading-item[hidden]{display:none}
.exit-chamber em{font-weight:400;color:#b9d8bf}.exit-chamber .exit-insight{border-left:3px solid #d8c487;padding:13px 17px;background:#2b504b;font:italic 22px/1.5 Georgia,serif}.exit-chamber .doors{grid-template-columns:repeat(2,minmax(0,1fr))}.exit-chamber section:target{outline:2px solid #d8c487}.exit-chamber a:focus-visible{outline-color:#f9d693}.sources{max-width:1000px}.sources p{padding:12px 0;border-top:1px dotted #648e82}.reading h3 a:focus-visible{outline-color:#a25e2d}.missing,.web-guide{padding:clamp(40px,7vw,100px) clamp(18px,8vw,110px);max-width:1200px}.missing h1,.web-guide h1{font:400 clamp(45px,7vw,100px)/1.04 Georgia,serif;letter-spacing:-.05em}.missing p{font-size:18px;line-height:1.6}.web-guide article{border-top:2px solid var(--ink);margin:56px 0 30px}.web-guide article h2{font:400 clamp(26px,3vw,43px)/1.18 Georgia,serif;margin:37px 0 8px}.web-guide article p{font:17px/1.7 system-ui;max-width:780px}.web-guide a{text-underline-offset:4px}.web-guide .bridge-actions a{text-decoration:none}
/* Focus targets should show location without trapping focus. */
[tabindex="-1"]:focus{outline:2px dashed #6d9484;outline-offset:6px}
@media (max-width:1080px){.top-nav{order:3;width:100%;justify-content:center;border-top:1px solid var(--line)}.mast{gap:6px}.top-nav a{flex:1;text-align:center}}
@media (max-width:750px){.lens{grid-template-columns:1fr;gap:9px}.field-bridge{grid-template-columns:1fr}.fact-pocket{grid-template-columns:1fr}.library-head h2,.reading h2{font-size:clamp(36px,11vw,64px)}.reading-item{grid-template-columns:1fr;gap:2px}.exit-chamber .doors{grid-template-columns:1fr}}
@media (max-width:480px){.mast{gap:7px}.top-nav{font-size:10px}.top-nav a{padding:12px 3px}.intro-actions{gap:9px}.intro-actions>.text-link{padding:10px 4px}.library,.reading{padding:42px 18px}.field-bridge{padding:20px}.parallel-table table{min-width:520px}.read-index{font-size:10px}.lens h3{font-size:27px}.reading-item h3{font-size:23px}.mast-actions button,.escape{font-size:10px;padding:8px}.folio{letter-spacing:.05em}}
@media(prefers-reduced-motion:reduce){.illustration .rings i{animation:none!important}.isobars{transition:none}.wind{transition:none;will-change:auto}}
body.motion-off .illustration .rings i{animation:none!important}body.motion-off .wind{will-change:auto}
@media print{.library,.reading,.top-nav{display:none!important}.parallel{break-inside:avoid}.parallel-table table{min-width:0}.report-card{break-inside:avoid}.exit-chamber .doors{grid-template-columns:repeat(2,minmax(0,1fr))}.exit-chamber .doors a{break-inside:avoid;color:black}.exit-chamber em{color:black}}

/* Keep the exit in reach during long visits. */
.mast{position:sticky;top:0;z-index:60;background:var(--paper)}
@media print{.mast{position:static}}
/* Finger-sized tap surfaces on the otherwise editorial navigation. */
.brand,.top-nav a,.intro-actions .text-link,footer a{display:inline-flex;align-items:center;min-height:44px}
.top-nav a{justify-content:center}
.reading-item h3 a,.exit-chamber .sources a,.exit-chamber p>a{display:inline-block;min-height:44px;padding-block:8px}
.web-guide article a{display:inline-block;min-height:44px;padding-block:7px}