/* System font fallback: no third-party font requests on the production host. */
.mobile-tools,#study-toggle{display:none}
.navigation-family{margin-bottom:8px;border:1px solid var(--line);border-radius:10px;padding:0 10px}
.navigation-family summary{font-size:.9375rem;padding:12px 2px;min-height:48px}
.navigation-muscle{display:block;width:100%;text-align:left;min-height:46px;margin:0 0 6px;font-size:.875rem;line-height:1.4;font-weight:500}
.navigation-muscle[aria-pressed=true]{background:#fff0e3;border-color:var(--orange);box-shadow:inset 3px 0 var(--orange)}
.navigation-family .meta{margin:0 0 12px}
.display-options{margin-top:20px}.display-options summary{min-height:44px;padding:12px 0;cursor:pointer;font-size:.875rem}
.card-end{flex-wrap:wrap;gap:8px}.back-to-group{margin-right:auto}
body:has(.atlas-layout){overscroll-behavior-y:none}
.study-modes{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:8px;flex-shrink:0;border-bottom:1px solid #dbe1e4;background:#fff8f2}.study-modes [aria-pressed=true]{background:#d9571b;color:white;border-color:#d9571b}
.gesture-controls{display:flex;gap:6px;margin-top:6px}.gesture-controls button{flex:1}.gesture-controls [aria-pressed=true]{background:#243944;color:white}.family{border-bottom:1px solid #dbe1e4}.family summary{cursor:pointer;min-height:48px;padding:14px 5px;font-size:.875rem;font-weight:600;line-height:1.5}.family summary:focus-visible{outline:3px solid #257f92}.family[open] summary{color:#ac461a}.part-picker .meta{margin:0!important}
.abdomen-study{padding:14px;background:#fff6ed;border:1px solid #efd2bc;border-radius:12px;margin:14px 0 18px}.abdomen-study h3{font-size:1rem;margin:0 0 6px}.abdomen-study p{margin:0 0 10px}.abdomen-buttons{display:grid;grid-template-columns:1fr 1fr;gap:6px}.abdomen-buttons button{min-height:46px;line-height:1.3;padding:9px 6px;font-size:.8rem}.abdomen-buttons [aria-pressed=true]{background:#243944;color:white;border-color:#243944}.abdomen-card-nav{margin-top:16px}.abdomen-card-nav p{margin:0 0 8px!important}.cutaway-label{position:absolute;right:12px;top:42px;max-width:48%;font-size:11px;line-height:1.35;color:#596c74;background:#ffffffba;padding:5px 7px;border-radius:6px;pointer-events:none}
:root{font-family:'Golos Text',Arial,sans-serif;color:#22313a;background:#f2f4f5;font-size:16px;--orange:#d9571b;--line:#dbe1e4;--muted:#5c6c76;--ink:#243944}
*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer;min-height:44px;border:1px solid var(--line);background:white;border-radius:9px;color:inherit;padding:9px 12px;font-size:.875rem;font-weight:600}button:hover{background:#f7e8dd}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #257f92;outline-offset:2px}button:disabled{opacity:.45;cursor:default}[hidden]{display:none!important}a{color:inherit}
.top{height:72px;padding:12px 28px;display:flex;align-items:center;gap:22px;border-bottom:1px solid var(--line);background:#fff}.brand{display:flex;gap:10px;align-items:center;text-decoration:none;font-size:.875rem;letter-spacing:.07em;font-weight:800}.brand-mark{background:var(--orange);color:white;font-size:2rem;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;line-height:1;letter-spacing:0}.brand small{display:block;font-size:.75rem;font-weight:400;letter-spacing:0;margin-top:3px}.edition{color:var(--muted);font-size:.75rem;letter-spacing:.06em;margin-left:auto}.edition b{margin-left:10px;border:1px solid var(--line);padding:6px 9px;border-radius:20px;font-weight:500}.about-link{font-size:.875rem;min-height:44px;display:flex;align-items:center;text-underline-offset:4px}
.atlas-layout{height:calc(100dvh - 72px);min-height:550px;max-width:1800px;margin:auto;display:grid;grid-template-columns:minmax(0,1fr) 390px;gap:22px;padding:20px 24px}.workspace{min-width:0;min-height:0;display:flex;flex-direction:column}.heading{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:0 0 12px}h1{font-size:1.7rem;letter-spacing:-.035em;line-height:1.2;margin:0}.quiet{background:transparent}.stage-wrap{position:relative;flex:1;min-height:180px;background:radial-gradient(ellipse at 50% 42%,white 0,#e4ecef 85%);border:1px solid #d3dde1;border-radius:18px;overflow:hidden}#stage{position:absolute;inset:0}#stage canvas{width:100%;height:100%;display:block;touch-action:none;cursor:grab}.side-mark{position:absolute;top:15px;left:15px;font-size:.75rem;color:#536771;line-height:1.5;pointer-events:none}.stage-label{position:absolute;right:15px;top:15px;font-size:.75rem;color:#536771;pointer-events:none}.selection-label{position:absolute;bottom:12px;left:12px;max-width:calc(100% - 24px);white-space:normal;text-align:left;box-shadow:0 3px 15px #22313a14;border-left:4px solid var(--orange);font-size:.875rem;background:#fffffff0}.scene-controls{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding-top:10px}.cameras,.zoom{display:flex;gap:4px}.cameras [aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:#fff}.zoom button{min-width:44px}.gesture-note{font-size:.75rem;color:var(--muted);margin:8px 0 0;line-height:1.4}
.study{background:white;border:1px solid var(--line);border-radius:18px;min-width:0;min-height:0;display:flex;flex-direction:column;overflow:hidden}.panel-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px;padding:8px;border-bottom:1px solid var(--line);flex-shrink:0}.panel-tabs button{border:0;background:none;padding:9px 4px}.panel-tabs [aria-selected=true]{background:var(--ink);color:#fff}.panel-content{min-height:0;flex:1;overflow:auto;overscroll-behavior:contain;padding:22px;scrollbar-gutter:stable}.panel-heading{margin-bottom:18px}.panel-heading h2{margin:0 0 6px;font-size:1.2rem}.meta,.card-index{font-size:.75rem;color:var(--muted);line-height:1.5}.layers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.layers button{text-align:left;padding:12px;min-height:75px}.layers b{display:block;font-size:.875rem}.layers span{display:block;font-size:.75rem;font-weight:400;margin-top:6px;line-height:1.4}.layers [aria-pressed=true]{background:#fff2e7;border-color:#da7745;box-shadow:inset 0 0 0 1px #da7745}.layer-note{font-size:.875rem;line-height:1.6;margin:16px 0;color:var(--muted)}.options{border-block:1px solid var(--line);padding:8px 0}.options label{min-height:44px;display:flex;align-items:center;gap:10px;font-size:.875rem}.options input[type=checkbox]{width:21px;height:21px;accent-color:var(--orange);margin:0}.options .opacity{display:grid;grid-template-columns:1fr auto;padding-top:8px}.opacity input{grid-column:1/-1;width:100%;min-height:44px;accent-color:var(--orange);margin:0}.restore-row{display:flex;justify-content:space-between;gap:8px;align-items:center;padding-top:12px;font-size:.75rem;color:var(--muted)}.note{font-size:.875rem!important;line-height:1.65;color:var(--muted);background:#f1f5f6;border-left:3px solid #9fb5bd;padding:12px 14px;margin:18px 0 0}.panel-footer{display:flex;justify-content:space-between;gap:8px;flex-shrink:0;border-top:1px solid var(--line);padding:10px 14px;font-size:.75rem;color:var(--muted)}
.search-label{font-size:.875rem;font-weight:600;display:block;margin-bottom:10px}.search-wrap{display:flex;position:relative}.search-wrap input{width:100%;min-height:48px;padding:10px 42px 10px 12px;border:1px solid #bfcdd4;border-radius:9px;font-size:1rem;color:var(--ink);background:white}.search-wrap button{position:absolute;right:2px;top:2px;width:44px;border:0;background:none;font-size:1.4rem}.search-wrap input::-webkit-search-cancel-button{display:none}.structure-group{margin:18px 0 8px;font-size:.875rem;color:var(--muted);font-weight:600}.structure-row{display:flex;align-items:stretch;border-bottom:1px solid #e5ebee;gap:4px}.structure-open{flex:1;min-width:0;border:0;text-align:left;background:none;padding:12px 6px;font-weight:500;font-size:1rem;line-height:1.4}.structure-open small{display:block;font-size:.75rem;color:var(--muted);font-style:italic;margin-top:4px}.structure-open[aria-pressed=true]{color:#a84014;border-left:3px solid var(--orange);background:#fff6ed}.visibility-toggle{align-self:center;min-width:44px;padding:8px;border:0;background:#f2f5f6;font-size:.75rem}.empty-search{font-size:1rem;line-height:1.6}#card h2{font-size:1.6rem;line-height:1.2;letter-spacing:-.025em;margin:12px 0}#card p{font-size:1rem;line-height:1.6}.latin{font-style:italic;color:var(--muted);font-size:.875rem!important;margin-top:-3px}.card-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:16px 0}.card-actions .primary{background:var(--ink);border-color:var(--ink);color:white}.card-actions .wide{grid-column:1/-1}.side-control{display:flex;gap:4px;margin:12px 0}.side-control button{flex:1;padding:8px 5px;font-size:.875rem}.side-control [aria-pressed=true]{background:#fff2e7;border-color:#da7745}.facts{margin:18px 0}.facts dt{font-size:.875rem;color:#aa4316;margin-top:20px;font-weight:700}.facts dd{margin:6px 0 0;font-size:1rem;line-height:1.7}.tag{display:inline-block;color:#9b481f;font-size:.75rem;background:#fff3e8;border:1px solid #ead7c5;padding:5px 8px;border-radius:6px}.card-end{display:flex;justify-content:flex-end;margin-top:18px}
#loading{position:absolute;inset:0;background:#edf2f4f2;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:24px;text-align:center;z-index:3}#load-note{font-size:.875rem;color:var(--muted);max-width:310px;line-height:1.5}.loader{width:32px;height:32px;border:3px solid #ccd9df;border-top-color:var(--orange);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto!important}}
@media(max-width:1000px){.atlas-layout{grid-template-columns:minmax(0,1fr) 340px;padding:14px;gap:14px}.panel-content{padding:18px}.scene-controls button{padding:9px}.edition{display:none}.about-link{margin-left:auto}}
@media(max-width:760px) and (orientation:portrait){.top{height:58px;padding:6px 14px}.brand{font-size:.75rem}.brand-mark{width:32px;height:32px;font-size:1.7rem}.atlas-layout{height:calc(100dvh - 58px);min-height:590px;grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(285px,1fr) minmax(260px,42%);gap:8px;padding:8px 10px max(8px,env(safe-area-inset-bottom))}.heading{padding-bottom:6px}.heading h1{font-size:1.2rem}.heading button{padding:8px}.stage-wrap{border-radius:13px;min-height:160px}.side-mark{left:10px;top:10px}.stage-label{right:10px;top:10px}.scene-controls{display:grid;grid-template-columns:1fr auto;gap:4px;padding-top:6px}.cameras,.zoom{gap:2px}.scene-controls button{font-size:.875rem;padding:8px 5px}.cameras button{flex:1}.gesture-note{display:none}.study{border-radius:13px}.panel-tabs{padding:4px;gap:2px}.panel-content{padding:14px 16px;scrollbar-gutter:auto}.panel-heading{margin-bottom:12px}.panel-heading h2{font-size:1rem}.panel-heading .meta{display:none}.layers button{padding:10px;min-height:68px}.panel-footer{padding:7px 10px}.selection-label{bottom:8px;left:8px;max-width:calc(100% - 16px);padding:8px 10px}}
@media(max-width:350px) and (orientation:portrait){.scene-controls{grid-template-columns:1fr}.zoom{justify-content:center}.atlas-layout{grid-template-rows:minmax(320px,1fr) minmax(260px,40%);min-height:615px}.panel-content{padding:12px}}
@media(orientation:landscape) and (max-height:600px){.top{height:50px;padding:5px 16px}.brand-mark{width:30px;height:30px}.atlas-layout{height:calc(100dvh - 50px);min-height:340px;grid-template-columns:minmax(0,1fr) minmax(280px,42%);padding:8px;gap:8px}.heading h1{font-size:1.2rem}.heading{padding-bottom:4px}.gesture-note{display:none}.panel-content{padding:12px}.scene-controls{padding-top:4px}.scene-controls button{padding:8px 5px}.panel-footer{padding:6px}.stage-wrap{min-height:150px}}
body:has(main:not(.atlas-layout)) main{padding:28px 22px;margin:auto}body:has(main:not(.atlas-layout)) h1{margin:18px 0}body:has(main:not(.atlas-layout)) footer{display:flex;justify-content:space-between;padding:24px;font-size:.875rem}
#region{width:100%;font:inherit;min-height:46px;border:1px solid #c8d5db;border-radius:9px;padding:9px 12px;background:#f4f7f8;color:var(--ink);margin:0 0 16px}#region:focus-visible{outline:3px solid #257f92}.part-picker{display:flex;flex-direction:column;gap:6px;margin:16px 0}.part-picker button{text-align:left;font-size:.875rem}.part-picker [aria-pressed=true]{background:#fff0e3;border-color:var(--orange);box-shadow:inset 3px 0 var(--orange)}.coverage-note{font-size:.8rem;line-height:1.6;color:#7a531f;border:1px solid #e9d8bb;background:#fff9ee;border-radius:9px;padding:12px;margin-top:18px}
@media(max-width:760px) and (orientation:portrait){
 .atlas-layout{min-height:0;grid-template-rows:minmax(290px,55%) minmax(220px,1fr)}
 .stage-wrap{min-height:120px}.gesture-controls{gap:4px;margin-top:4px}.gesture-controls button{padding:8px 4px;font-size:.8rem}.study-modes{padding:5px;gap:4px}.study-modes button{padding:8px 4px;font-size:.8rem}.heading button{font-size:.8rem}.panel-footer{font-size:.65rem;padding:5px 8px}.scene-controls{grid-template-columns:1fr auto}.scene-controls button{font-size:.75rem;padding:8px 4px}.zoom button{min-width:44px}.cameras{min-width:0}
 .side-mark{font-size:9px;max-width:35%}.stage-label{font-size:10px}.cutaway-label{font-size:9px}.selection-label{font-size:.75rem}
}
@media(max-width:350px) and (orientation:portrait){.atlas-layout{grid-template-rows:minmax(285px,55%) minmax(220px,1fr);padding-inline:6px}.scene-controls{gap:2px}.scene-controls button{padding-inline:3px}.cameras button{font-size:.7rem}.panel-tabs button{font-size:.8rem}.panel-content{padding:12px}.top{padding-inline:10px}}
/* A compact lower dock, not two toolbars plus a permanently open card. */
@media(max-width:760px) and (orientation:portrait){
 .atlas-layout{grid-template-rows:minmax(0,1fr) 104px;gap:6px;min-height:0}
 .study-expanded .atlas-layout{grid-template-rows:minmax(0,1fr) minmax(210px,46%)}
 .workspace .scene-controls,.workspace .gesture-controls{display:none}
 .mobile-tools{display:grid;grid-template-columns:minmax(66px,1fr) repeat(5,44px);gap:3px;margin-top:5px;flex-shrink:0}
 .mobile-tools button{padding:0;font-size:21px;min-width:44px;min-height:44px;line-height:1}
 .mobile-tools small{display:block;font-size:8px;line-height:1.3;font-weight:500;margin-top:3px;white-space:nowrap}
 .mobile-tools select{width:100%;min-width:0;font:inherit;font-size:12px;border:1px solid #dbe1e4;border-radius:9px;background:white;color:#243944;padding:0 3px;min-height:44px}
 #mobile-pan[aria-pressed=true]{background:#243944;color:white}
 .study-modes{grid-template-columns:1fr 1fr 44px;padding:4px;gap:3px}
 #study-toggle{display:block;font-size:22px;padding:0;min-height:44px}
 .study .panel-footer{display:none}.study .panel-content{display:none}
 .study-expanded .study .panel-content{display:block}
 .panel-tabs{border-bottom:0}.study-expanded .panel-tabs{border-bottom:1px solid #dbe1e4}
 .study-modes button{font-size:12px;padding:6px 3px}
 .stage-wrap{min-height:100px}.selection-label{max-width:calc(100% - 16px);font-size:12px;line-height:1.3}
 #restore-notice{font-size:11px;margin-top:0}
}