:root{color-scheme:light;--ink:#1f2d34;--muted:#5b6b72;--paper:#f6f4ee;--card:#fffefa;--line:#dde1db;--teal:#176c69;--teal-bg:#e8f2ee;--rose:#a34756;--rose-bg:#f8ecee;--gold:#8f6a1c;--gold-bg:#f6f0e2;--blue:#405f9d;--blue-bg:#eaeff8;--fs:100%;--measure:44rem}
:root[data-theme=dark]{color-scheme:dark;--ink:#e3eaec;--muted:#9fb0b6;--paper:#12171a;--card:#1a2125;--line:#2c373c;--teal:#5fc0b8;--teal-bg:#17302d;--rose:#e38c9b;--rose-bg:#33222a;--gold:#d8b25c;--gold-bg:#2c2618;--blue:#93adea;--blue-bg:#1b2434}
*{box-sizing:border-box}
html{font-size:var(--fs);scroll-behavior:smooth;scroll-padding-top:72px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font:1.0625rem/1.68 ui-sans-serif,system-ui,"Segoe UI",sans-serif}
a{color:var(--teal);text-underline-offset:2px;overflow-wrap:anywhere}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid color-mix(in srgb,var(--teal) 45%,transparent);outline-offset:2px;border-radius:4px}
h1,h2,h3{font-family:Georgia,"Times New Roman",serif;font-weight:500;letter-spacing:-.015em;line-height:1.2}
h2{font-size:clamp(1.6rem,3.2vw,2.1rem);margin:0 0 .6rem}
h3{font-size:1.3rem;margin:2rem 0 .5rem}
p,li{max-width:var(--measure)}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:var(--card);padding:8px 12px;z-index:50}
/* top bar */
.bar{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:10px;padding:8px clamp(14px,3vw,28px);background:color-mix(in srgb,var(--paper) 90%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar .title{font:500 1rem Georgia,serif;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;min-width:0}
.bar button{font:inherit;font-size:.85rem;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:999px;padding:6px 11px;cursor:pointer}
.progress{position:absolute;left:0;bottom:-1px;height:2px;background:var(--teal);width:0}
#toc-btn{display:none}
/* hero */
.hero{padding:clamp(36px,7vw,80px) clamp(16px,5vw,64px) clamp(28px,5vw,48px);background:linear-gradient(180deg,color-mix(in srgb,var(--teal) 10%,var(--paper)),var(--paper));border-bottom:1px solid var(--line)}
.hero-in{max-width:1180px;margin:auto}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.72rem;font-weight:700;color:var(--teal)}
.hero h1{font-size:clamp(2.1rem,5.6vw,3.7rem);margin:.4rem 0 1rem;max-width:20ch}
.lede{font-size:1.2rem;color:var(--muted);max-width:40rem}
.keys{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;font-size:.88rem}
.keys span{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--card);border-radius:999px;padding:5px 12px}
.keys i{width:10px;height:10px;border-radius:3px;display:inline-block}
/* layout */
.wrap{max-width:1180px;margin:auto;display:grid;grid-template-columns:250px minmax(0,1fr);gap:clamp(24px,4vw,56px);padding:0 clamp(16px,4vw,40px)}
nav.toc{position:sticky;top:64px;align-self:start;max-height:calc(100vh - 80px);overflow:auto;padding:28px 0 20px;font-size:.9rem}
nav.toc h2{font:700 .72rem ui-sans-serif,system-ui,sans-serif;text-transform:uppercase;letter-spacing:.14em;color:var(--muted);margin:0 0 10px}
nav.toc ol{list-style:none;margin:0;padding:0;counter-reset:t}
nav.toc li{counter-increment:t}
nav.toc a{display:block;padding:5px 10px;border-left:2px solid var(--line);color:var(--muted);text-decoration:none;line-height:1.35}
nav.toc a::before{content:counter(t) ". ";opacity:.7}
nav.toc a.on{color:var(--ink);border-left-color:var(--teal);font-weight:600;background:color-mix(in srgb,var(--teal) 7%,transparent)}
main{min-width:0;padding:20px 0 60px}
section.s{padding:36px 0 28px;border-bottom:1px solid var(--line)}
section.s:last-of-type{border-bottom:0}
.num{font:700 .75rem ui-sans-serif,system-ui,sans-serif;color:var(--teal);letter-spacing:.12em;text-transform:uppercase}
.intro{font-size:1.12rem;color:var(--muted)}
/* boxes */
.box{border-radius:12px;padding:14px 18px;margin:18px 0;max-width:calc(var(--measure) + 2rem);border:1px solid}
.box>b:first-child,.box .lbl{display:block;font:700 .74rem ui-sans-serif,system-ui,sans-serif;text-transform:uppercase;letter-spacing:.12em;margin-bottom:4px}
.box p{margin:.35rem 0}
.rel{background:var(--teal-bg);border-color:color-mix(in srgb,var(--teal) 30%,transparent)}.rel>b:first-child{color:var(--teal)}
.div{background:var(--rose-bg);border-color:color-mix(in srgb,var(--rose) 30%,transparent)}.div>b:first-child{color:var(--rose)}
.note{background:var(--gold-bg);border-color:color-mix(in srgb,var(--gold) 30%,transparent)}.note>b:first-child{color:var(--gold)}
.pair{display:grid;grid-template-columns:1fr 1fr;gap:14px;max-width:calc(var(--measure) + 8rem)}
.pair .box{margin:6px 0}
/* reading lists */
.read{margin:20px 0 6px;padding:14px 18px;border:1px dashed var(--line);border-radius:12px;max-width:calc(var(--measure) + 2rem);background:var(--card)}
.read>b{display:block;font:700 .74rem ui-sans-serif,system-ui,sans-serif;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin-bottom:6px}
.read ul{margin:0;padding-left:1.1em}.read li{margin:.3rem 0;font-size:.95rem}
.kind{font-size:.78rem;color:var(--muted);white-space:nowrap}
/* concept cards */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;margin:16px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.card h4{font:500 1.12rem Georgia,serif;margin:0 0 4px}
.card p{margin:.35rem 0;font-size:.95rem}
.card .clin{font-size:.88rem;color:var(--teal);border-top:1px solid var(--line);padding-top:6px;margin-top:8px}
/* tables */
.tbl{overflow-x:auto;margin:16px 0;border:1px solid var(--line);border-radius:12px;background:var(--card)}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:.93rem}
th,td{text-align:left;vertical-align:top;padding:10px 14px;border-bottom:1px solid var(--line)}
thead th{font:700 .74rem ui-sans-serif,system-ui,sans-serif;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);background:color-mix(in srgb,var(--line) 35%,transparent)}
tbody th{font-weight:600}
tr:last-child td,tr:last-child th{border-bottom:0}
/* timeline */
.tl{list-style:none;padding:0 0 0 22px;margin:18px 0;border-left:2px solid var(--line)}
.tl li{position:relative;margin:0 0 16px}
.tl li::before{content:"";position:absolute;left:-29px;top:.45em;width:12px;height:12px;border-radius:50%;background:var(--paper);border:3px solid var(--teal)}
.tl li.uk::before{border-color:var(--blue)}
.tl time{font-weight:700;font-size:.85rem;color:var(--muted);display:block}
/* steps */
.steps{counter-reset:s;list-style:none;padding:0;margin:16px 0}
.steps li{counter-increment:s;position:relative;padding:0 0 12px 44px}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:30px;height:30px;border-radius:50%;background:var(--ink);color:var(--paper);display:grid;place-items:center;font:700 .85rem ui-sans-serif,system-ui,sans-serif}
/* self check */
details.q{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 16px;margin:10px 0;max-width:calc(var(--measure) + 2rem)}
details.q summary{cursor:pointer;font-weight:600;list-style:none}
details.q summary::-webkit-details-marker{display:none}
details.q summary::before{content:"Check yourself · ";color:var(--gold);font-weight:700;font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}
details.q[open] summary{margin-bottom:6px}
details.q p{margin:.4rem 0;color:var(--muted)}
/* glossary */
dl.gl{display:grid;grid-template-columns:minmax(150px,220px) 1fr;gap:0;margin:16px 0;border:1px solid var(--line);border-radius:12px;background:var(--card);overflow:hidden}
dl.gl dt,dl.gl dd{margin:0;padding:10px 14px;border-bottom:1px solid var(--line)}
dl.gl dt{font-weight:600}
dl.gl dd{font-size:.95rem}
dl.gl dt:last-of-type,dl.gl dd:last-of-type{border-bottom:0}
.refs{font-size:.92rem}.refs li{margin:.35rem 0}
.refs h3{font-size:1.1rem}
footer{border-top:1px solid var(--line);padding:28px clamp(16px,5vw,64px) 48px;color:var(--muted);font-size:.88rem}
footer p{max-width:60rem;margin:.4rem auto}
.totop{position:fixed;right:16px;bottom:16px;z-index:20;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--card);color:var(--ink);font-size:1.1rem;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .2s}
.totop.show{opacity:1;pointer-events:auto}
/* mobile */
@media (max-width:900px){
 .wrap{grid-template-columns:1fr}
 #toc-btn{display:inline-block}
 nav.toc{position:fixed;inset:52px 0 auto 0;max-height:70vh;background:var(--card);border-bottom:1px solid var(--line);padding:16px 20px;display:none;z-index:25;box-shadow:0 18px 40px #0003}
 nav.toc.open{display:block}
 .pair{grid-template-columns:1fr}
 dl.gl{grid-template-columns:1fr}
 dl.gl dt{border-bottom:0;padding-bottom:0}
 body{font-size:1rem}
}
@media print{.bar,nav.toc,.totop{display:none}.wrap{display:block}details.q{display:block}details.q>*{display:block}}
/* navigation aids (enhance.js) */
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
nav.toc>ol>li>a{display:flex;align-items:baseline}
nav.toc>ol>li>a::before{flex:none;white-space:pre}
nav.toc .mins{margin-left:auto;padding-left:8px;font-size:.75rem;opacity:.75;white-space:nowrap}
nav.toc li.seen>a{border-left-color:color-mix(in srgb,var(--teal) 45%,var(--line))}
nav.toc li.seen>a .mins::after{content:" \2713";color:var(--teal)}
nav.toc ul.sub{list-style:none;margin:0 0 6px;padding:0 0 0 12px;display:none}
nav.toc li.open>ul.sub,nav.toc li:focus-within>ul.sub{display:block}
nav.toc ul li{counter-increment:none}
nav.toc ul a{font-size:.82rem;padding:3px 10px;line-height:1.3}
nav.toc ul a::before{content:none}
nav.toc ul a.on{color:var(--ink);border-left-color:var(--teal);font-weight:600}
.tocstat{font-size:.8rem;color:var(--muted);margin:0 0 10px;padding:0 10px}
.tocstat button{font:inherit;color:var(--teal);background:none;border:0;padding:0;text-decoration:underline;cursor:pointer}
button.term{font:inherit;color:inherit;background:none;border:0;padding:0;margin:0;cursor:help;text-align:inherit;text-decoration:underline dotted var(--teal);text-decoration-thickness:1.5px;text-underline-offset:3px}
button.term:hover,button.term[aria-expanded=true]{color:var(--teal)}
.tip{position:fixed;z-index:40;display:block;width:min(22rem,calc(100vw - 24px));background:var(--card);color:var(--ink);border:1px solid var(--line);border-radius:12px;padding:12px 14px;box-shadow:0 14px 36px #0003;font:400 .92rem/1.5 ui-sans-serif,system-ui,"Segoe UI",sans-serif;letter-spacing:normal;text-align:left}
.tip[hidden]{display:none}
.tip b{display:block;font:700 .72rem ui-sans-serif,system-ui,sans-serif;text-transform:uppercase;letter-spacing:.12em;color:var(--teal);margin-bottom:4px}
.tip a{display:inline-block;margin-top:6px;font-size:.88rem}
.seealso{margin:26px 0 0;max-width:calc(var(--measure) + 2rem)}
.seealso>b{display:block;font:700 .74rem ui-sans-serif,system-ui,sans-serif;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin-bottom:8px}
.seealso ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.seealso li{max-width:none}
.chip{display:block;text-decoration:none;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:12px;padding:8px 12px;font-size:.9rem;line-height:1.35;max-width:16rem}
.chip:hover{border-color:var(--teal)}
.chip strong{display:block;font-weight:600;color:var(--teal)}
.chip span{display:block;color:var(--muted);font-size:.8rem}
.backpill{position:fixed;left:16px;bottom:16px;z-index:21;max-width:calc(100vw - 96px);font:inherit;font-size:.88rem;color:var(--ink);background:var(--card);border:1px solid var(--teal);border-radius:999px;padding:8px 14px;cursor:pointer;box-shadow:0 8px 24px #0002}
.backpill[hidden]{display:none}
@media print{.seealso,.tip,.backpill,.tocstat{display:none}button.term{text-decoration:none}}

/* ---- pass 2: audience routes, exhibits, lenses, concept map ---- */
.hero h1{max-width:26ch;font-size:clamp(1.9rem,5vw,3.2rem)}
.homelink{margin:0 0 14px;font-size:.85rem}
.homelink a{color:var(--muted)}
.hero-routes{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px;max-width:60rem}
.route{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 18px}
.route h3{font:500 1.1rem Georgia,serif;margin:0 0 4px}
.route p{margin:.2rem 0 .4rem;font-size:.92rem;color:var(--muted)}
.route ul,.route ol{margin:0;padding-left:1.15em}
.route li{font-size:.92rem;margin:.28rem 0}
.readtime{margin-top:18px;font-size:.9rem;color:var(--muted);max-width:60rem}
.routes,.cmap{padding:28px 0 20px;border-bottom:1px solid var(--line)}
.rgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-top:10px}
/* Ask for the source exhibit */
.srcx{margin:22px 0;max-width:calc(var(--measure) + 2rem);background:var(--blue-bg);border:1px solid color-mix(in srgb,var(--blue) 40%,transparent);border-left:5px solid var(--blue);border-radius:12px;padding:14px 18px 12px}
.srcx-tag{display:inline-block;font:700 .72rem ui-sans-serif,system-ui,sans-serif;text-transform:uppercase;letter-spacing:.12em;color:var(--blue);border:1px solid var(--blue);border-radius:999px;padding:2px 10px;margin-bottom:6px}
.srcx h4{font:500 1.2rem Georgia,serif;margin:2px 0 8px}
.srcx-chain{list-style:none;margin:0;padding:0}
.srcx-chain li{max-width:none;padding:8px 0;border-top:1px dashed color-mix(in srgb,var(--blue) 35%,transparent)}
.srcx-chain b{display:block;font:700 .74rem ui-sans-serif,system-ui,sans-serif;text-transform:uppercase;letter-spacing:.1em;color:var(--blue)}
.srcx-chain span{display:block;font-size:.95rem}
.srcx-take{margin:.6rem 0 .2rem;font-size:.95rem;border-top:1px solid color-mix(in srgb,var(--blue) 35%,transparent);padding-top:8px}
/* go-deeper blocks */
details.deeper{margin:14px 0;max-width:calc(var(--measure) + 2rem);border:1px solid var(--line);border-left:4px solid var(--teal);border-radius:12px;background:var(--card);padding:10px 16px}
details.deeper summary{cursor:pointer;font-weight:600;list-style:none}
details.deeper summary::-webkit-details-marker{display:none}
details.deeper summary::before{content:"\25B8  ";color:var(--teal)}
details.deeper[open] summary::before{content:"\25BE  "}
details.deeper[open] summary{margin-bottom:6px}
details.deeper p,details.deeper li{font-size:.97rem}
/* glossary additions */
.gl-src,.gl-dc{display:block;font-size:.85rem;color:var(--muted);margin-top:4px}
.gl-dc b{color:var(--rose)}
/* evidence table */
.evtbl{min-width:640px}
/* two-lens example */
.lens-wrap{margin:34px 0 10px;padding-top:6px;border-top:1px solid var(--line)}
.lens-ctl{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.lens-ctl[hidden]{display:none}
.lens-ctl button{font:inherit;font-size:.88rem;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:999px;padding:6px 14px;cursor:pointer}
.lens-ctl button[aria-pressed=true]{border-color:var(--teal);background:var(--teal-bg);color:var(--teal);font-weight:600}
.lens{display:grid;grid-template-columns:1fr 1fr;gap:14px;max-width:calc(var(--measure) + 14rem);margin:12px 0}
.lens>div{background:var(--card);border:1px solid var(--line);border-top:4px solid var(--teal);border-radius:12px;padding:12px 16px}
.lens>.lens-b{border-top-color:var(--gold)}
.lens h4{font:500 1.15rem Georgia,serif;margin:0 0 6px}
.lens dl{margin:0}
.lens dt{font:700 .72rem ui-sans-serif,system-ui,sans-serif;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-top:8px}
.lens dd{margin:2px 0 0;font-size:.94rem}
.lens[data-show=psy]{grid-template-columns:1fr}.lens[data-show=psy] .lens-b{display:none}
.lens[data-show=beh]{grid-template-columns:1fr}.lens[data-show=beh] .lens-p{display:none}
/* concept map */
.cm-fig{margin:12px 0}
.cm-svg{width:100%;height:auto;display:block;background:var(--card);border:1px solid var(--line);border-radius:12px}
.cm-svg text{font:12px ui-sans-serif,system-ui,"Segoe UI",sans-serif;fill:var(--ink)}
.cm-heads text{font-size:11px;font-weight:700;fill:var(--muted);letter-spacing:.04em}
.cm-edge{stroke:color-mix(in srgb,var(--muted) 55%,transparent);stroke-width:1.2}
.cm-node{cursor:pointer;outline:none}
.cm-node rect{fill:var(--card);stroke-width:2}
.cm-node.s-P rect{stroke:var(--teal)}.cm-node.s-B rect{stroke:var(--gold)}.cm-node.s-C rect{stroke:var(--blue)}.cm-node.s-D rect{stroke:var(--rose)}.cm-node.s-V rect{stroke:var(--muted);stroke-dasharray:5 3}
.cm-node:hover rect,.cm-node:focus-visible rect{stroke-width:4;fill:color-mix(in srgb,var(--teal) 10%,var(--card))}
.cm-node:focus-visible rect{stroke:var(--ink)}
.cm-svg.sel .cm-edge{opacity:.12}
.cm-svg.sel .cm-node{opacity:.4}
.cm-svg.sel .cm-edge.hl{opacity:1;stroke:var(--teal);stroke-width:3}
.cm-svg.sel .cm-node.hl{opacity:1}
.cm-cap{min-height:3.2em;font-size:.92rem;color:var(--muted);margin:8px 0 0}
details.cm-text{margin:14px 0;border:1px solid var(--line);border-radius:12px;background:var(--card);padding:10px 16px}
details.cm-text summary{cursor:pointer;font-weight:600}
.cm-list{margin:10px 0 0;padding:0;list-style:none;columns:2 20rem;column-gap:28px}
.cm-list>li{break-inside:avoid;margin:0 0 12px;max-width:none}
.cm-list ul{margin:2px 0 0;padding-left:1.1em;list-style:disc}
.cm-list ul li{font-size:.88rem;margin:.15rem 0;max-width:none}
.cm-strand{display:inline-block;font-size:.72rem;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:0 8px;margin-left:4px}
@media (max-width:900px){.hero-routes,.lens{grid-template-columns:1fr}}
@media (max-width:719px){.cm-fig{display:none}.cm-list{columns:1}}
@media (min-width:720px){.cm-fig+details .cm-note{display:none}}
@media print{.lens-ctl{display:none}.lens{display:block}.lens[data-show]>div{display:block!important}.cm-svg{display:none}}