:root{--bg:#0b0c0e;--panel:#121316;--fg:#e8e9eb;--muted:#b4b9c0;--rule:#2a2d33;--accent:#ffc857;--gap:24px;--side-w:min(400px, 32vw);--radius:4px;--rail-w:200px;--reserve:64px;--ease:cubic-bezier(.2,.8,.2,1);--t:.2s;--font-ui:system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-display:ui-serif, "New York", "Iowan Old Style", Georgia, serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--hover:#ffffff0f;--sel:#ffc8571f}*{box-sizing:border-box}html,body{background:var(--bg);height:100%;color:var(--fg);font:400 15px/1.5 var(--font-ui);margin:0;overflow:hidden}button,textarea{font:inherit}h1,h2,h3,h4,p{margin:0}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}#stage{background:#000;position:fixed;inset:0;overflow:hidden}#stage canvas{display:block}#selected{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}#tip{pointer-events:none;border:1px solid var(--rule);border-radius:var(--radius);white-space:nowrap;opacity:0;z-index:3;background:#000;padding:4px 10px;font-size:13px;transition:opacity .12s;position:absolute}#tip.show{opacity:1}#loading{transition:opacity .32s var(--ease), visibility 0s .32s;z-index:5;background:#222;place-content:center;justify-items:center;gap:10px;display:grid;position:absolute;inset:0}#loading.done{opacity:0;visibility:hidden;pointer-events:none}#loading-bar{appearance:none;background:#444;border:0;border-radius:2px;width:220px;height:4px;overflow:hidden}#loading-bar::-webkit-progress-bar{background:#444}#loading-bar::-webkit-progress-value{background:var(--accent)}#loading-bar::-moz-progress-bar{background:var(--accent)}#error{color:#fff;z-index:6;background:#900;padding:12px;display:none;position:fixed;inset:0 0 auto}body.loading #rail,body.loading #side,body.loading #view-controls,body.loading #brand,body.loading #sources,body.loading #chat-launch,body.loading #chat-panel{visibility:hidden}body.failed #rail,body.failed #side,body.failed #view-controls,body.failed #loading{display:none}#brand{z-index:3;top:var(--gap);left:var(--gap);position:fixed}#brand h1{font:600 22px/1 var(--font-display);letter-spacing:-.01em;color:#fff}.brand-atlas{color:var(--accent);font-style:italic}#side,#sources>details[open],#chat-panel{background:var(--panel);border:1px solid var(--rule);border-radius:var(--radius)}#rail,#sources{z-index:3;position:fixed}#rail{top:60px;left:var(--gap);width:var(--rail-w);max-height:calc(100vh - 60px - var(--reserve));overscroll-behavior:contain;flex-direction:column;display:flex;overflow-y:auto}#muscles-section{flex-direction:column;flex:0 auto;min-height:120px;display:flex}.rail-head{justify-content:space-between;align-items:center;min-height:26px;padding:0 10px 4px;display:flex}.section-label{letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-size:11px;font-weight:600}#clear{border:1px solid var(--rule);border-radius:var(--radius);color:var(--muted);cursor:pointer;transition:opacity var(--t) var(--ease), color var(--t), border-color var(--t), transform .12s;background:0 0;padding:2px 8px;font-size:12px}#clear:hover:not(:disabled){color:#fff;border-color:var(--muted)}#clear:disabled{opacity:0;pointer-events:none}#list{overscroll-behavior:contain;gap:1px;min-height:0;margin:0;padding:0;font-size:14px;list-style:none;display:grid;overflow-y:auto}#list.more{-webkit-mask-image:linear-gradient(#000 calc(100% - 28px),#0000);mask-image:linear-gradient(#000 calc(100% - 28px),#0000)}#list button{border-radius:var(--radius);width:100%;color:var(--muted);text-align:left;cursor:pointer;white-space:nowrap;text-overflow:ellipsis;font-size:inherit;transition:background-color .15s var(--ease), color .15s var(--ease);background:0 0;border:0;padding:3px 10px 3px 14px;line-height:1.35;display:block;position:relative;overflow:hidden}#list button:hover{background:var(--hover);color:#fff}#list button[aria-pressed=true]{background:var(--sel);color:#fff;font-weight:600}#list button:after{content:"";background:var(--accent);width:3px;transition:transform .22s var(--ease);border-radius:2px;position:absolute;top:4px;bottom:4px;left:0;transform:scaleY(0)}#list button[aria-pressed=true]:after{transform:scaleY(1)}#list button[data-mixed=true]:before{content:"";border:1px solid var(--accent);width:8px;height:8px;margin-top:-4px;position:absolute;top:50%;right:10px}#hint{color:var(--muted);white-space:nowrap;flex:none;margin-top:6px;padding:0 10px;font-size:11px}#rail>details{flex:none;margin:0;font-size:13px}#rail>details>summary{border-radius:var(--radius);cursor:pointer;color:var(--muted);transition:background-color .15s var(--ease), color .15s var(--ease);align-items:center;gap:8px;padding:6px 10px;list-style:none;display:flex}#rail>details>summary::-webkit-details-marker{display:none}#rail>details>summary:before{content:"+";text-align:center;width:10px}#rail>details[open]>summary:before{content:"–"}#rail>details>summary:hover,#rail>details[open]>summary{color:#fff}#rail>details>summary:hover{background:var(--hover)}#muscle-guide{margin-top:8px}#guide-body{overscroll-behavior:contain;max-height:min(32vh,320px);padding:4px 10px 8px 28px;overflow-y:auto}#guide-body section+section{margin-top:16px}#guide-body h3{color:var(--muted);margin-bottom:8px;font-size:13px;font-weight:600}.guide-note{color:var(--muted);margin-bottom:12px;font-size:12px}.guide-claim{margin-bottom:12px;font-size:13px}#mixer-count{border:1px solid var(--rule);border-radius:var(--radius);color:var(--muted);font-variant-numeric:tabular-nums;transition:color var(--t), border-color var(--t);margin-left:auto;padding:0 7px;font-size:11px;line-height:18px}#mixer-count.on{color:var(--accent);border-color:var(--accent)}#mixer-body{max-height:min(32vh,320px);padding:2px 10px 8px 28px;overflow-y:auto}.mixer-help,#mixer-matches{color:var(--muted);font-size:12px}#mixer-list{gap:2px;margin:8px 0;padding:0;list-style:none;display:grid}#mixer-list button{color:var(--fg);cursor:pointer;text-align:left;background:0 0;border:0;padding:2px 0;font-size:13px}#mixer-list button:hover{color:#fff;text-decoration:line-through}.mixer-actions{gap:16px;margin-top:8px;display:flex}.mixer-actions button{color:var(--fg);text-underline-offset:3px;cursor:pointer;background:0 0;border:0;padding:2px 0;font-size:13px;text-decoration:underline}.mixer-actions button:disabled{cursor:default;opacity:.55;text-decoration:none}#right-col{z-index:4;top:60px;right:var(--gap);bottom:var(--reserve);width:var(--side-w);pointer-events:none;flex-direction:column;gap:12px;display:flex;position:fixed}#right-col>*{pointer-events:auto}#side{z-index:3;flex-direction:column;flex:0 auto;min-height:0;max-height:100%;padding:20px 24px;font-size:14px;display:flex;position:relative}body:has(#chat-panel:not([hidden])) #side{max-height:45vh}@media (width<=1199px){body:has(#chat-panel:not([hidden])) #side{max-height:30vh;padding:14px 18px}}#side[hidden]{display:none}#side h2{font:600 27px/1.1 var(--font-display);letter-spacing:-.015em;color:#fff;flex:none}.tabs{border-bottom:1px solid var(--rule);flex:none;gap:24px;margin-top:14px;display:flex;position:relative}.tabs:after{content:"";height:2px;width:var(--ind-w,0);background:var(--accent);transform:translateX(var(--ind-x,0));transition:transform .26s var(--ease), width .26s var(--ease);position:absolute;bottom:-1px;left:0}.tab{color:var(--muted);cursor:pointer;transition:color var(--t);background:0 0;border:0;border-bottom:2px solid #0000;margin-bottom:-1px;padding:0 0 8px;font-size:14px}.tab:hover{color:#fff}.tab[aria-selected=true]{color:#fff;font-weight:600}.tabpanel{overscroll-behavior:contain;flex:auto;min-height:110px;margin-top:16px;overflow-y:auto}.tabpanel[hidden]{display:none}#side-panel-an>section+section{margin-top:24px}#side h3{color:var(--muted);margin-bottom:8px;font-size:14px;font-weight:600}#side h4{color:var(--muted);margin:16px 0 8px;font-size:13px;font-weight:600}.row-h{justify-content:space-between;align-items:baseline;display:flex}.note-wrap{position:relative}.note-btn{color:var(--muted);text-underline-offset:3px;cursor:pointer;background:0 0;border:0;padding:0;font-size:13px;text-decoration:underline}.note-btn:hover,.note-btn[aria-expanded=true]{color:#fff}#dataset-tip{z-index:1;background:var(--panel);border:1px solid var(--rule);border-radius:var(--radius);width:260px;color:var(--fg);padding:8px 12px;font-size:13px;position:absolute;top:26px;right:0}#dataset-tip[hidden]{display:none}.ex-list{margin-top:12px}.ex{text-align:left;width:100%;color:var(--fg);cursor:pointer;transition:color .15s, padding-left .18s var(--ease);background:0 0;border:0;padding:4px 0 4px 18px;font-weight:500;display:block;position:relative}.ex:hover{color:#fff;padding-left:22px}.ex[aria-pressed=true]{color:#fff;padding-left:22px;font-weight:600}.ex:before{content:"";background:var(--accent);width:8px;height:8px;transition:transform .2s var(--ease);position:absolute;top:12px;left:0;transform:scale(0)}.ex[aria-pressed=true]:before{transform:scale(1)}.ex-more{padding:0 0 8px 18px;display:none}.ex[aria-pressed=true]+.ex-more{display:block}.det{color:var(--muted);font-size:13px}.claim{margin:0 0 20px}.claim:last-child{margin-bottom:0}.cite,.fine,.empty-note{color:var(--muted);margin-top:8px;font-size:13px}.cite{font:italic 11.5px/1.4 var(--font-mono);letter-spacing:.01em;font-variant-numeric:tabular-nums}.section-note{color:var(--muted);margin-bottom:12px;font-size:13px}.fine a{color:inherit;overflow-wrap:anywhere}details{margin-top:8px;font-size:13px}summary{cursor:pointer;color:var(--fg);padding:2px 0}summary:hover{color:#fff}blockquote{color:var(--fg);border-left:1px solid #555;margin:8px 0 0;padding:4px 0 4px 12px;font-style:italic}.badges{margin-top:8px}.badge{color:var(--muted);margin-right:12px;font-size:13px}#view-controls{z-index:3;top:60px;right:var(--gap);gap:2px;display:grid;position:fixed}:is(body:has(#side:not([hidden])) #view-controls,body:has(#chat-panel:not([hidden])) #view-controls){right:calc(var(--gap) + var(--side-w) + 10px)}#view-controls button{transition:color var(--t), border-color var(--t), transform .12s;border-radius:var(--radius);width:28px;height:28px;color:var(--muted);cursor:pointer;background:0 0;border:1px solid #0000;place-items:center;padding:6px;display:grid}#view-controls button:hover,#view-controls button:focus-visible{border-color:var(--rule);color:#fff}#view-controls svg{fill:none;stroke:currentColor;stroke-width:1.6px;stroke-linecap:round;stroke-linejoin:round;width:100%;height:100%}#sources{left:var(--gap);width:max-content;max-width:calc(100vw - 2 * var(--gap));bottom:12px}#sources:has(details[open]){width:min(520px, calc(100vw - 2 * var(--gap)))}#sources>details{margin:0;font-size:12px}#sources>details>summary{color:var(--muted);text-underline-offset:3px;padding:4px 0;text-decoration:underline}#sources>details[open]>summary{padding:8px 12px 0}#sources-body{overscroll-behavior:contain;max-height:min(56vh,560px);padding:8px 12px 12px;overflow-y:auto}#sources-body section+section{margin-top:16px}#sources-body h3{color:var(--muted);margin-bottom:8px;font-size:13px}.source-item{padding:6px 0}.source-item a{color:var(--fg);text-underline-offset:3px;font-weight:600}.source-item .fine{margin-top:4px}.source-notes{margin-top:4px;font-size:12px}.source-notes .fine{padding-left:10px}#chat-launch{z-index:5;right:var(--gap);background:var(--accent);border-radius:var(--radius);color:#14110a;cursor:pointer;transition:transform var(--t) var(--ease), background-color var(--t);border:0;align-items:center;gap:8px;padding:8px 16px 8px 12px;font-weight:600;display:flex;position:fixed;bottom:12px}#chat-launch:hover{background:#ffd57e;transform:translateY(-2px)}#chat-launch svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;width:18px;height:18px}.launch-short{display:none}#stage-hint{z-index:2;width:max-content;max-width:calc(100vw - 2 * var(--gap) - 40px);text-align:center;color:var(--muted);pointer-events:none;font-size:13px;display:none;position:fixed;bottom:22px;left:50%;transform:translate(-50%)}body.idle:not(.loading):not(.failed) #stage-hint{animation:.7s ease-out .4s both fade-in;display:block}#chat-panel{z-index:5;flex-direction:column;flex:1 1 0;min-height:160px;display:flex;position:relative;overflow:hidden}#chat-panel[hidden]{display:none}.chat-header{justify-content:space-between;align-items:center;gap:16px;padding:16px 16px 8px;display:flex}.chat-kicker{color:var(--muted);font-size:12px}.chat-header h2{font:600 20px/1.15 var(--font-display);letter-spacing:-.01em}#chat-close{transition:border-color var(--t), transform .12s;border-radius:var(--radius);width:28px;height:28px;color:var(--fg);cursor:pointer;background:0 0;border:1px solid #0000;padding:0;font-size:22px;line-height:1}#chat-close:hover,#chat-close:focus-visible{border-color:var(--rule)}.chat-mixer-help{color:var(--muted);padding:0 16px 8px;font-size:12px}#chat-messages{overscroll-behavior:contain;flex:1;min-height:0;padding:12px 16px;overflow-y:auto}.chat-message,.chat-trace{animation:rise .26s var(--ease) both}.chat-message{white-space:pre-wrap;overflow-wrap:anywhere;width:fit-content;max-width:90%;margin-bottom:12px;padding:0;font-size:13px}.chat-message.user{color:#fff;margin-left:auto;font-weight:600}.chat-message a{color:var(--accent);text-underline-offset:3px}.chat-trace{color:var(--muted);overflow-wrap:anywhere;margin-bottom:8px;font:11px/1.4 ui-monospace,SFMono-Regular,Menlo,monospace}.chat-trace.error{color:var(--accent)}#chat-status.busy:before{content:"";background:var(--accent);width:6px;height:6px;margin-right:8px;animation:1s ease-in-out infinite pulse;display:inline-block}#chat-status.busy{animation:1.4s ease-in-out infinite shimmer}#chat-status{min-height:20px;color:var(--accent);padding:0 16px;font-size:12px}#chat-form{grid-template-columns:1fr auto;gap:8px;padding:10px 16px 8px;display:grid}#chat-form label{color:var(--muted);grid-column:1/-1;font-size:12px}#chat-input{resize:none;border:1px solid var(--rule);border-radius:var(--radius);background:var(--bg);min-width:0;color:var(--fg);padding:8px 10px;font-size:13px}#chat-send{transition:background-color var(--t), transform .12s, opacity var(--t);border-radius:var(--radius);background:var(--accent);color:#14110a;cursor:pointer;border:0;align-self:stretch;padding:0 16px;font-weight:600}.chat-chips{flex-wrap:wrap;gap:8px;margin-bottom:12px;display:flex}.chat-chips button{transition:background-color var(--t), color var(--t), transform .12s;border:1px solid var(--accent);border-radius:var(--radius);color:var(--accent);cursor:pointer;background:0 0;padding:4px 10px;font-size:12px}.chat-chips button:hover:not(:disabled){background:var(--accent);color:#14110a}.chat-chips button:disabled,#chat-send:disabled{cursor:wait;opacity:.55}.chat-disclaimer{color:var(--muted);padding:0 16px 12px;font-size:12px}.callouts{z-index:2;pointer-events:none;opacity:0;transition:opacity .18s;position:absolute;inset:0}.callouts.on{opacity:1}.callouts:not(.on) .callout{visibility:hidden}.callouts-svg{pointer-events:none;width:100%;height:100%;position:absolute;inset:0;overflow:visible}.callouts-svg line{stroke:#ffffffb3;stroke-width:1px}.callouts-svg circle{fill:#fff;stroke:none}.callout{pointer-events:none;white-space:nowrap;color:#fff;will-change:transform;-webkit-text-stroke:3px #000000bf;paint-order:stroke fill;border-bottom:1px solid #ffffffb3;align-items:center;gap:6px;padding-bottom:4px;font-weight:600;display:flex;position:absolute;top:0;left:0}.callout-sw{flex:none;width:9px;height:9px;box-shadow:0 0 0 1px #00000073}@media (width<=599px){.callouts{display:none}}@media (width<=899px){:root{--gap:12px}#brand{top:10px}#rail{top:44px;left:var(--gap);right:var(--gap);z-index:4;background:var(--bg);width:auto;max-height:calc(100vh - 100px);overflow-y:auto}#muscles-section{min-height:0}.rail-head{display:none}#list{gap:16px;display:flex;overflow:auto hidden}#list button{flex:none;width:auto}#guide-body,#mixer-body{max-height:32vh}#right-col{display:contents}#side{z-index:3;top:auto;left:var(--gap);right:var(--gap);width:auto;max-height:45vh;padding:20px 24px;position:fixed;bottom:56px}body:has(#chat-panel:not([hidden])) #side{z-index:3;top:auto;left:var(--gap);right:var(--gap);width:auto;max-height:45vh;padding:20px 24px;position:fixed;bottom:56px}#view-controls{top:150px;right:var(--gap)}body:has(#side:not([hidden])) #view-controls{top:150px;right:var(--gap)}body:has(#chat-panel:not([hidden])) #view-controls{top:150px;right:var(--gap)}#sources{width:calc(100vw - 2 * var(--gap) - 40px);bottom:8px}#chat-launch{padding:6px 12px 6px 10px;bottom:8px}#hint{display:none}#list.more{-webkit-mask-image:none;mask-image:none}#stage-hint{bottom:22px}#chat-panel{min-height:0;top:auto;left:var(--gap);right:var(--gap);flex:none;width:auto;height:min(60vh,560px);position:fixed;bottom:56px}}@media (width<=599px){.launch-long{display:none}.launch-short{display:inline}#stage-hint{bottom:72px}}@keyframes fade-in{0%{opacity:0}}@keyframes rise{0%{opacity:0;transform:translateY(8px)}}@keyframes panel-in{0%{opacity:0;transform:translate(14px)}}@keyframes sheet-in{0%{opacity:0;transform:translateY(14px)}}@keyframes pulse{50%{opacity:.25;transform:scale(.7)}}@keyframes shimmer{50%{opacity:.55}}#side:not([hidden]),#chat-panel:not([hidden]){animation:panel-in .28s var(--ease) both}#side>:not(.tabs),.tabs{animation:rise .26s var(--ease) both}.tabpanel .fn,.tabpanel .row-h,.ex-list>*,#side-panel-an>section{animation:rise .3s var(--ease) both}.tabpanel .row-h{animation-delay:70ms}.ex-list>*{animation-delay:.11s}#side-panel-an>section:nth-child(2){animation-delay:60ms}#side-panel-an>section:nth-child(3){animation-delay:.12s}.tabpanel .fn{animation-delay:30ms}button:active:not(:disabled){transform:scale(.97)}#list button:active:not(:disabled),.tab:active,.ex:active{transform:none}@media (width<=899px){#side:not([hidden]),#chat-panel:not([hidden]){animation-name:sheet-in}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}}.sec-h{letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:20px 0 8px;font-size:11px;font-weight:600}.fn .sec-h{margin-top:0}.fn-item{margin:0 0 14px;font-size:14.5px;line-height:1.5}.fn-item p{margin:0}.fn-item .cite{margin-top:4px;font-size:11.5px}