/* Homepage composition only. Standalone prototype and other sections stay scoped. */
.pe-anatomy{font-family:var(--pe-font-ui);background:var(--pe-bg);border-block:1px solid var(--pe-line);scroll-margin-top:6rem}
.pe-anatomy .atlas{padding-block:6rem 4.5rem;display:grid;grid-template-columns:minmax(310px,.82fr) minmax(0,1.5fr);gap:0 clamp(36px,5.5vw,80px)}
.pe-anatomy .editorial,.pe-anatomy .specimen{min-width:0}
.pe-anatomy .eyebrow{font:400 10px/1.7 var(--pe-font-ui);letter-spacing:.12em;text-transform:uppercase;color:#586457;margin:0;display:flex;align-items:center;gap:10px}
.pe-anatomy .fine-rule{height:1px;width:22px;background:var(--pe-line)}
.pe-anatomy .anatomy-title{font:400 clamp(66px,6.6vw,95px)/.90 var(--pe-font-display);letter-spacing:-.035em;margin:29px 0 25px;color:var(--pe-ink)}
.pe-anatomy .anatomy-title em{font:italic 400 1em/.90 var(--pe-font-display);color:var(--pe-mineral-ink)}
.pe-anatomy .intro{font-size:14px;line-height:1.8;color:#4f5b50;margin:0 0 30px;max-width:370px}
.pe-anatomy button{font:inherit;color:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent}
.pe-anatomy button:focus-visible,.pe-anatomy .stage:focus-visible{outline:2px solid var(--pe-mineral-ink);outline-offset:5px}
.pe-anatomy button:disabled{cursor:default;opacity:.4}
.pe-anatomy .layers{border-top:1px solid var(--pe-line)}
.pe-anatomy .layers button{display:flex;align-items:center;width:100%;gap:20px;text-align:left;background:none;border:0;border-bottom:1px solid var(--pe-line);padding:16px 12px 16px 0;min-height:78px;font-family:var(--pe-font-display);font-size:28px;position:relative;transition:padding .4s,background .4s}
.pe-anatomy .layers button[aria-pressed=true]{padding-left:14px;background:#e1e6d9;box-shadow:inset 3px 0 #596c52}
.pe-anatomy .layer-no{font:10px var(--pe-font-ui);letter-spacing:.08em;color:#596456}
.pe-anatomy .layers small{display:block;font:10px var(--pe-font-ui);color:#596456;margin-top:5px;letter-spacing:.03em}
.pe-anatomy .swatch{display:block;flex:0 0 12px;width:12px;height:12px;border-radius:50%;margin-left:auto}
.pe-anatomy .swatch--enamel{background:#ede4d2;border:1px solid #aa9f8a}.pe-anatomy .swatch--dentin{background:#b8a177}.pe-anatomy .swatch--pulp{background:#a36861}
.pe-anatomy .layer-arrow{font:17px var(--pe-font-ui);color:#304c34;opacity:0}.pe-anatomy .layers button[aria-pressed=true] .layer-arrow{opacity:1}
.pe-anatomy .layers button[aria-pressed=true] .layer-no{color:#304c34}
.pe-anatomy .explanation{min-height:180px;padding-top:26px}
.pe-anatomy .explanation h3{font:400 28px/1.15 var(--pe-font-display);margin:10px 0;color:var(--pe-ink)}
.pe-anatomy .explanation>p:last-child{font-size:14px;line-height:1.8;color:#4f5b50;max-width:390px;margin:0}
.pe-anatomy .specimen__top{display:flex;justify-content:space-between;gap:12px;font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:#586457;margin-bottom:14px}
.pe-anatomy .stage{position:relative;height:590px;overflow:hidden;background:radial-gradient(ellipse at 40% 28%,#fbf8f0 0%,#ece9df 56%,#d3daca 100%);isolation:isolate;touch-action:pan-y;cursor:grab;border:1px solid rgba(122,137,122,.1)}
.pe-anatomy .stage:active{cursor:grabbing}.pe-anatomy .atlas:not([data-state=ready]) .stage{cursor:default}
.pe-anatomy .stage__architecture{position:absolute;inset:0;pointer-events:none}
.pe-anatomy .stage__arch{position:absolute;width:78%;height:93%;left:11%;top:8%;border:1px solid rgba(108,130,100,.2);border-radius:50% 50% 0 0 /42% 42% 0 0;background:linear-gradient(130deg,rgba(191,202,180,.23),transparent 70%)}
.pe-anatomy .stage__baseline{position:absolute;left:8%;right:8%;bottom:7%;border-top:1px solid rgba(122,137,122,.20)}
.pe-anatomy .poster,.pe-anatomy .canvas-host{position:absolute;inset:0}
.pe-anatomy .poster svg{width:100%;height:100%;padding:25px}
.pe-anatomy .poster-note{position:absolute;bottom:11%;left:0;right:0;text-align:center;font-size:10px;letter-spacing:.08em;color:#586457}
.pe-anatomy .poster__cut{display:none}
.pe-anatomy [data-layer=dentin] .poster__cut,.pe-anatomy [data-layer=pulp] .poster__cut{display:block}
.pe-anatomy [data-layer=dentin] .poster__whole,.pe-anatomy [data-layer=pulp] .poster__whole{display:none}
.pe-anatomy [data-layer=dentin] .poster__pulp{fill:#7b6753;opacity:.6}
.pe-anatomy .canvas-host canvas{width:100%;height:100%;display:block}
.pe-anatomy .canvas-host{opacity:0;transition:opacity .45s}
.pe-anatomy [data-state=ready] .canvas-host{opacity:1}.pe-anatomy [data-state=ready] .poster{visibility:hidden}
.pe-anatomy .callouts{display:none;position:absolute;inset:0;pointer-events:none}.pe-anatomy [data-state=ready] .callouts{display:block}
.pe-anatomy .callouts>span{position:absolute;font-size:10px;letter-spacing:.04em;color:#354936;white-space:nowrap;display:flex;align-items:center;gap:9px;opacity:.92;transition:opacity .4s;text-shadow:0 1px 5px #f8f5ed,0 0 8px #f8f5ed}
.pe-anatomy .callouts i{display:block;width:40px;height:1px;background:#65785e}
.pe-anatomy .callouts i:after{content:'';display:block;width:4px;height:4px;border-radius:50%;background:#6d7f68;margin-left:auto;margin-top:-1.5px}
.pe-anatomy [data-callout=dentin],.pe-anatomy [data-callout=chamber]{flex-direction:row-reverse}
.pe-anatomy [data-callout=chamber]{visibility:hidden}.pe-anatomy [data-layer=pulp] [data-callout=chamber]{visibility:visible;opacity:1;color:#23392a}
.pe-anatomy [data-layer=enamel] [data-callout=enamel],.pe-anatomy [data-layer=dentin] [data-callout=dentin],.pe-anatomy [data-layer=pulp] [data-callout=pulp]{opacity:1;color:#23392a}
.pe-anatomy [data-layer=enamel] [data-callout=dentin],.pe-anatomy [data-layer=enamel] [data-callout=pulp],.pe-anatomy [data-layer=dentin] [data-callout=pulp]{visibility:hidden}
.pe-anatomy .stage__index{position:absolute;top:27px;left:28px;font:400 52px var(--pe-font-display);color:#87917d;opacity:.3}
.pe-anatomy .stage__signature{position:absolute;bottom:28px;right:30px;font-size:10px;letter-spacing:.15em;color:#586457}
.pe-anatomy .view-controls{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-top:19px}
.pe-anatomy .view-controls p{font-size:11px;line-height:1.8;color:#4e5f4c;margin:0}.pe-anatomy .view-controls p span{font-size:10px}
.pe-anatomy .view-buttons{display:flex;gap:6px}
.pe-anatomy .view-buttons button{height:44px;min-width:44px;border:1px solid #8a9a80;background:#f6f5ee;border-radius:50%;font-size:16px}
.pe-anatomy .view-buttons .reset{width:auto;display:flex;align-items:center;gap:8px;border-radius:100px;padding:0 13px;font-size:20px;margin-left:5px;background:#dae2d1;border-color:#6c8064;color:#29432e}
.pe-anatomy .reset span{font-size:10px}
.pe-anatomy .availability{font-size:10px;line-height:1.6;color:#586457;margin:13px 0 0;min-height:16px}
.pe-anatomy .anatomy-note{grid-column:1/-1;border-top:1px solid var(--pe-line);padding-top:20px;margin:30px 0 0;color:#586457;font-size:11px;line-height:1.7}
.pe-anatomy noscript{grid-column:1/-1}.pe-anatomy .anatomy-static{font-size:14px;line-height:1.8}.pe-anatomy .anatomy-static dt{font-weight:600}.pe-anatomy .anatomy-static dd{margin:0 0 12px}
.pe-anatomy .atlas:not([data-js]) .poster__cut{display:block}.pe-anatomy .atlas:not([data-js]) .poster__whole,.pe-anatomy .atlas:not([data-js]) .availability{display:none}.pe-anatomy .atlas:not([data-js]) #view-help{visibility:hidden}
/* CSS motion enhances already rendered HTML. Focus and reduced motion stay visible. */
.pe-anatomy[data-reveal-ready]:not([data-entered]) :is(.anatomy-title,.intro,.specimen,.layers,.explanation){opacity:0;transform:translateY(14px)}
.pe-anatomy[data-reveal-ready] :is(.anatomy-title,.intro,.specimen,.layers,.explanation){transition:opacity .6s ease,transform .6s ease}
.pe-anatomy[data-reveal-ready] .specimen{transition-delay:.12s}.pe-anatomy[data-reveal-ready] .layers{transition-delay:.24s}.pe-anatomy[data-reveal-ready] .explanation{transition-delay:.32s}
.pe-anatomy:focus-within :is(.anatomy-title,.intro,.specimen,.layers,.explanation){opacity:1!important;transform:none!important}
@media(max-width:1100px){.pe-anatomy .atlas{gap:0 34px;grid-template-columns:minmax(280px,.85fr) minmax(0,1.25fr)}.pe-anatomy .stage{height:565px}.pe-anatomy .view-controls{flex-wrap:wrap}.pe-anatomy .view-buttons{width:100%;justify-content:flex-end}.pe-anatomy .anatomy-title{font-size:78px}.pe-anatomy .reset span{display:none}}
@media(max-width:800px){.pe-anatomy .atlas{gap:0 24px;grid-template-columns:minmax(250px,.9fr) minmax(0,1.1fr);padding-block:4rem}.pe-anatomy .anatomy-title{font-size:65px}.pe-anatomy .editorial>.eyebrow{display:block;max-width:230px}.pe-anatomy .fine-rule{display:none}.pe-anatomy .stage{height:520px}.pe-anatomy .layers button{font-size:26px;gap:15px;min-height:74px}.pe-anatomy .intro,.pe-anatomy .explanation>p:last-child{font-size:13px}.pe-anatomy .explanation h3{font-size:26px}.pe-anatomy .view-buttons{gap:5px;justify-content:center}.pe-anatomy .view-buttons .reset{padding:0;min-width:44px;margin-left:0}.pe-anatomy .callouts i{width:18px}.pe-anatomy .callouts>span{font-size:9px}.pe-anatomy .specimen__top{font-size:9px;flex-wrap:wrap;letter-spacing:.05em}}
@media(max-width:620px){.pe-anatomy .atlas{display:flex;flex-direction:column;gap:0;padding-block:3.5rem 3rem}.pe-anatomy .editorial{display:contents}.pe-anatomy .editorial>.eyebrow{order:0;max-width:none;font-size:10px}.pe-anatomy .anatomy-title{order:1;font-size:64px;line-height:.88;margin:22px 0 18px}.pe-anatomy .anatomy-title br{display:none}.pe-anatomy .anatomy-title em{display:block}.pe-anatomy .intro{order:2;font-size:13px;margin-bottom:23px}.pe-anatomy .specimen{order:3}.pe-anatomy .stage{height:390px}.pe-anatomy .stage__arch{top:6%;height:98%}.pe-anatomy .stage__index{font-size:38px;top:18px;left:20px}.pe-anatomy .stage__signature{right:20px;bottom:20px}.pe-anatomy .view-controls{margin-top:12px;flex-wrap:nowrap;gap:6px}.pe-anatomy .view-controls p{font-size:10px;max-width:155px;line-height:1.6}.pe-anatomy .view-controls p span{font-size:9px}.pe-anatomy .view-buttons{width:auto;gap:3px}.pe-anatomy .view-buttons button{font-size:15px}.pe-anatomy .view-buttons [data-view=up],.pe-anatomy .view-buttons [data-view=down]{display:none}.pe-anatomy .availability{margin:8px 0 17px}.pe-anatomy .layers{order:4;display:grid;grid-template-columns:repeat(3,1fr);border-bottom:1px solid var(--pe-line);margin-top:8px}.pe-anatomy .layers button{min-height:72px;gap:7px;border-bottom:0;padding:10px 6px;font-size:25px}.pe-anatomy .layers button[aria-pressed=true]{padding-left:6px;box-shadow:inset 0 -3px #596c52}.pe-anatomy .layers small,.pe-anatomy .layer-arrow,.pe-anatomy .layers .swatch{display:none}.pe-anatomy .layer-no{font-size:9px}.pe-anatomy .explanation{order:5;min-height:150px;padding-top:22px}.pe-anatomy .explanation>p:last-child{max-width:none}.pe-anatomy .anatomy-note{order:6;margin-top:24px;font-size:10px}.pe-anatomy noscript{order:7}.pe-anatomy .callouts i{width:23px}}
@media(prefers-reduced-motion:reduce){.pe-anatomy :is(.anatomy-title,.intro,.specimen,.layers,.explanation){opacity:1!important;transform:none!important}.pe-anatomy *{transition:none!important;animation:none!important}}
/* Keep the SVG underneath until the first rendered backbuffer has faded in. */
.pe-anatomy .poster{opacity:1;visibility:visible;transition:none}
.pe-anatomy .atlas[data-state=ready] .poster{opacity:0;visibility:hidden;transition:opacity .45s,visibility 0s .45s}
/* Intrinsic text growth must not widen the mobile three-column tissue controls. */
.pe-anatomy .layers button, .pe-anatomy .layers button > span { min-width:0; overflow-wrap:anywhere; }
.pe-anatomy .anatomy-title { overflow-wrap:anywhere; }
@media(max-width:620px){.pe-anatomy .layers{grid-template-columns:repeat(3,minmax(0,1fr))}.pe-anatomy .layers button{flex-wrap:wrap}}