:root{
 color-scheme:dark;
 --bg:#191b1e;--line:#3a4047;--text:#f3f4f6;--muted:#afb7c1;--yellow:#ffbf00;
 /* Blender-like workspace palette */
 --b-area:#303030;--b-header:#262626;--b-editor:#1d1d1d;--b-widget:#545454;--b-widget-hi:#656565;--b-field:#1d1d1d;
 --b-border:#161616;--b-text:#e6e6e6;--b-dim:#a6a6a6;--b-blue:#4772b3;--b-blue-hi:#5680c2;
 --edge:#101215;--sel:#ffa01c;--active:#ffffff;--cut:#ff3b30;
 font-family:Inter,'Segoe UI',Arial,sans-serif
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text)}
button,input,select{font:inherit}
button{cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--yellow);outline-offset:2px}
a{color:inherit;text-decoration:none}
h1,h2,p{margin:0}
[hidden]{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
kbd{font:inherit;font-size:.92em;display:inline-block;min-width:1.5em;text-align:center;background:#1a1c20;border:1px solid #6d737b;border-bottom-width:2px;border-radius:4px;padding:0 4px;color:#fff;font-weight:650;line-height:1.35}
kbd+kbd{margin-left:2px}

/* Site header */
.site-header{height:64px;display:flex;align-items:center;gap:20px;padding:0 clamp(16px,3vw,40px);border-bottom:1px solid var(--line)}
.brand{color:var(--yellow);min-width:74px}
.brand-mark{font-size:1.75rem;line-height:1;font-weight:850;letter-spacing:-2px}
.brand-mark span{font-weight:650;font-size:.6rem;letter-spacing:2px;display:block;margin-top:5px;text-align:right}
.header-rule{height:32px;width:1px;background:#50545c}
.header-title{display:flex;flex-direction:column;gap:3px}
.header-title strong{font-size:1rem}
.header-label,.eyebrow,.control-label{font-size:.63rem;letter-spacing:1.6px;font-weight:750}
.header-label{color:#b0b8c2}
.home-link{margin-left:auto;color:#cbd2db;font-size:.8rem}
.home-link:hover,footer a:hover{color:var(--yellow)}
main{max-width:1680px;margin:auto}

/* Top of the lab */
.lab-top{display:flex;align-items:end;justify-content:space-between;gap:24px;flex-wrap:wrap;padding:18px clamp(16px,3vw,40px) 12px}
.lab-lead h1{font-size:clamp(1.6rem,2.6vw,2.2rem);letter-spacing:-.045em;line-height:1.05;font-weight:700}
.lab-lead h1 span{color:var(--yellow)}
.lab-lead p{color:#bec6cf;font-size:.9rem;line-height:1.55;margin-top:8px;max-width:70ch}
.lab-lead strong{color:#fff}
.model-switch{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.model-switch .control-label{color:#aeb7c3;margin-right:6px}
.model-button{background:#292e35;color:#e9eef4;border:1px solid #56606b;border-radius:6px;padding:7px 13px;min-width:112px;text-align:left;font-size:.82rem;font-weight:700}
.model-button small{display:block;color:#aab5c1;font-size:.64rem;font-weight:400;margin-top:2px}
.model-button.active{border-color:var(--yellow);background:#ffbf0014}

/* Step guide */
.guide{list-style:none;margin:0 clamp(16px,3vw,40px) 10px;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}
.guide li{display:flex;gap:10px;align-items:center;padding:6px 11px;border:1px solid #3b4148;border-radius:7px;background:#20242a;color:#9aa4af;transition:border-color .2s,background .2s}
.guide li b{flex:none;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:.72rem;background:#353b43;color:#cfd6de}
.guide li strong{display:block;font-size:.8rem;color:#d6dce3}
.guide li small{display:block;font-size:.68rem;margin-top:2px;line-height:1.35}
.guide li.done b{background:#3d6b4c;color:#dff5e5}
.guide li.current{border-color:var(--yellow);background:#ffbf0012;color:#e5e9ee}
.guide li.current b{background:var(--yellow);color:#17191b}
.guide li.current strong{color:#fff}
.guide li.nudge{animation:nudge .5s ease 2}
@keyframes nudge{50%{transform:translateY(-3px);box-shadow:0 4px 0 #ffbf0044}}

/* Blender-style workspace */
.blender{position:relative;margin:0 clamp(16px,3vw,40px);background:var(--b-border);border:1px solid #0e0e0e;border-radius:9px;overflow:hidden;box-shadow:0 16px 40px #0007;color:var(--b-text);font-size:13px}
.topbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:6px 8px;background:var(--b-header);border-bottom:1px solid var(--b-border)}
.topbar-context{display:inline-flex;align-items:center;height:24px;padding:0 8px;border:1px solid #59606a;border-radius:4px;background:#1c1c1c;color:#d9dee5;font-size:10px;font-weight:800;letter-spacing:1px;white-space:nowrap}
.mode-select select,.menu-button,.icon-toggle,.op,.mini-button,.stretch-toggle button,.tool{border:1px solid #1b1b1b;color:var(--b-text);border-radius:4px;font-size:12.5px}
.mode-select select{background:var(--b-widget);padding:5px 8px;height:30px;cursor:pointer}
.select-modes{display:flex}
.icon-toggle{display:flex;align-items:center;gap:5px;background:var(--b-widget);padding:0 9px;height:30px;border-radius:0}
.icon-toggle:first-child{border-radius:4px 0 0 4px}.icon-toggle:last-child{border-radius:0 4px 4px 0;border-left:0}
.icon-toggle svg{width:16px;height:16px}
.icon-toggle kbd{font-size:10px;background:transparent;border-color:#ffffff55;padding:0 3px}
.icon-toggle[aria-pressed="true"]{background:var(--b-blue);color:#fff}
.icon-toggle:hover:not([aria-pressed="true"]),.op:hover:not(:disabled),.mini-button:hover,.menu-button:hover,.stretch-toggle button:hover:not([aria-pressed="true"]),.mode-select select:hover{background:var(--b-widget-hi)}
.menubar{display:flex;gap:2px}
.menu-button{background:transparent;border-color:transparent;padding:5px 10px;height:30px}
.menu-button[aria-expanded="true"]{background:var(--b-blue);color:#fff}
.bar-sep{width:1px;height:22px;background:#444}
.quick-ops{display:flex;gap:5px;flex-wrap:wrap}
.op{background:var(--b-widget);padding:0 11px;height:30px;display:flex;align-items:center;gap:7px;font-weight:600}
.op i{width:14px;height:3px;border-radius:2px;display:inline-block}
.op-mark i{background:var(--cut)}.op-clear i{background:#8d949c}
.op:disabled{opacity:.4;cursor:not-allowed}
.op-unwrap.needed{background:var(--yellow);color:#17191b;border-color:#9a7400;box-shadow:0 0 0 3px #ffbf0040}
.op-unwrap.needed:hover{background:#ffd255}
.live-toggle{margin-left:auto;display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--b-dim);cursor:pointer;user-select:none}
.live-toggle input{position:absolute;opacity:0;width:1px;height:1px}
.switch{width:30px;height:17px;border-radius:10px;background:#555;position:relative;transition:background .15s}
.switch:after{content:"";position:absolute;top:2px;left:2px;width:13px;height:13px;border-radius:50%;background:#ddd;transition:transform .15s}
.live-toggle input:checked+.switch{background:var(--b-blue)}
.live-toggle input:checked+.switch:after{transform:translateX(13px)}
.live-toggle input:focus-visible+.switch{outline:2px solid var(--yellow);outline-offset:2px}
.live-toggle:has(input:checked){color:var(--b-text)}

.editors{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--b-border)}
.editor{min-width:0;display:flex;flex-direction:column;background:var(--b-area)}
.editor-header{display:flex;align-items:center;gap:10px;min-height:36px;padding:3px 8px;background:var(--b-area);border-bottom:1px solid var(--b-border);flex-wrap:wrap}
.editor-type{display:flex;align-items:center;gap:6px;font-weight:650;color:#fff;padding-right:4px}
.editor-type svg{width:15px;height:15px;color:#9fb6d6}
.editor-role{font-size:9.5px;letter-spacing:1.1px;color:#8f9aa7;font-weight:750;border-left:1px solid #4a4a4a;padding-left:9px}
.viewport{order:-1}
#object-title{font-weight:500;color:var(--b-dim);font-size:12.5px}
.selection-state{font-size:9.5px;letter-spacing:.8px;text-transform:uppercase;font-weight:750;color:#ffc266;border:1px solid #9a681f;background:#ff9d1a18;border-radius:3px;padding:2px 6px}
.selection-state.off{color:#9da4ad;border-color:#555;background:transparent}
.viewer-legend{margin-left:auto;display:flex;gap:12px;font-size:11.5px;color:var(--b-dim)}
.viewer-legend span{display:flex;align-items:center;gap:5px}
.viewer-legend i{display:inline-block;width:14px;height:4px;border-radius:2px}
.legend-edge{background:#0b0c0e;box-shadow:0 0 0 1px #777}.legend-sel{background:var(--sel)}.legend-cut{background:var(--cut)}
.stretch-toggle{margin-left:auto;display:flex;align-items:center}
.stretch-toggle span{font-size:11.5px;color:var(--b-dim);margin-right:7px}
.stretch-toggle button{background:var(--b-widget);padding:3px 8px;border-radius:0;height:26px}
.stretch-toggle button:nth-of-type(1){border-radius:4px 0 0 4px}.stretch-toggle button:last-child{border-radius:0 4px 4px 0}
.stretch-toggle button+button{border-left:0}
.stretch-toggle button[aria-pressed="true"]{background:var(--b-blue);color:#fff}

.canvas-host,.map-host{position:relative;height:clamp(340px,calc(100vh - 390px),620px);min-height:340px;overflow:hidden}
.canvas-host{background:radial-gradient(circle at 50% 45%,#454a52,#2d3035 72%)}
.canvas-host canvas{display:block;width:100%;height:100%;touch-action:none}
.canvas-host.hovering-edge canvas{cursor:pointer}
.map-host{background:#232323;display:grid;place-items:center}
.map-host svg{width:100%;height:100%;max-width:640px}
.canvas-hint{position:absolute;top:50%;left:0;right:0;text-align:center;color:#e6e8ec;font-size:.85rem;pointer-events:none}
.nav-hint{position:absolute;right:10px;top:9px;font-size:11px;color:#c7ccd2;background:#1f2124cc;padding:4px 8px;border-radius:4px;pointer-events:none;max-width:calc(100% - 80px);text-align:right}
.nav-hint kbd{font-size:10px}

.toolshelf{position:absolute;left:8px;top:8px;display:flex;flex-direction:column;gap:3px;background:#262626e6;padding:4px;border-radius:6px;border:1px solid #111;z-index:2}
.tool{display:flex;flex-direction:column;align-items:center;gap:2px;width:58px;padding:6px 2px 4px;background:transparent;border-color:transparent;font-size:10px;color:#cfcfcf}
.tool svg{width:20px;height:20px}
.tool:hover{background:#3d3d3d}
.tool.active{background:var(--b-blue);color:#fff}
.tool[data-tool="seam"] svg{color:var(--cut)}
.tool[data-tool="seam"].active svg{color:#fff}

.fold-controls{position:absolute;left:50%;bottom:10px;transform:translateX(-50%);display:flex;align-items:center;gap:9px;background:#262626ee;border:1px solid #111;border-radius:6px;padding:6px 8px 6px 10px;font-size:12px;color:#d3d3d3;width:min(430px,calc(100% - 20px))}
.fold-tag{font-size:9.5px;letter-spacing:1.3px;font-weight:750;color:var(--yellow)}
.fold-controls input{flex:1;min-width:60px;accent-color:var(--yellow);direction:rtl}
.fold-button{background:var(--yellow);color:#17191b;border:0;border-radius:4px;padding:6px 10px;font-weight:700;font-size:12px;white-space:nowrap}
.fold-button:hover{background:#ffd255}
.fold-button:disabled,.fold-controls input:disabled{opacity:.45;cursor:not-allowed}

/* UV map */
.axis{fill:#98a2ad;font-size:12px;font-family:inherit;font-weight:650}
.axis-name{fill:#d9dee4;font-size:14px;font-weight:800}
.uv-face{cursor:pointer;outline:none}
.uv-face polygon{stroke:none}
.uv-face.hovered polygon{filter:brightness(1.15)}
.uv-face.selected polygon{filter:brightness(1.08) sepia(.35)}
.uv-face .sel-tint{fill:#ff9a1a;fill-opacity:.32;pointer-events:none}
.uv-face .trace{fill:none;stroke:var(--yellow);stroke-width:4;stroke-dasharray:7 5;pointer-events:none}
.uv-face:focus-visible .trace{stroke:#fff}
.uv-face text{font-family:inherit;pointer-events:none;text-anchor:middle;dominant-baseline:middle;fill:#20242b}
.uv-face .face-name{font-weight:700}
.uv-face .face-letter{font-weight:850}
.uv-checker{fill:url(#uv-check);pointer-events:none}
.uv-edge .edge-line{stroke:var(--edge);stroke-width:1.6;stroke-linecap:round;pointer-events:none}
.uv-edge.seam .edge-line{stroke:var(--cut);stroke-width:4}
.uv-edge.selected .edge-line{stroke:var(--sel);stroke-width:4.5}
.uv-edge.active .edge-line{stroke:var(--active);stroke-width:5}
.uv-edge.hovered .edge-line{stroke-width:6;filter:drop-shadow(0 0 3px #fff)}
.uv-edge.hovered:not(.seam):not(.selected) .edge-line{stroke:#fff}
.uv-edge .edge-hit{stroke:transparent;stroke-width:13;stroke-linecap:round;cursor:pointer}
.face-mode .uv-edge .edge-hit,.object-mode .uv-edge .edge-hit{pointer-events:none}
.island-label{fill:#d2dce7;font-size:9.5px;font-weight:750;letter-spacing:.5px;pointer-events:none}
.map-overlay{position:absolute;inset:0;display:grid;place-content:center;justify-items:center;gap:12px;text-align:center;padding:32px;background:#1d1d1de0;color:#eef1f4;font-size:.9rem;line-height:1.55}
.map-overlay strong{font-size:1rem;color:#fff}
.map-overlay.warning strong{color:#ff8a80}
.map-overlay button{background:var(--b-widget);color:#fff;border:1px solid #111;border-radius:4px;padding:6px 12px}
.map-overlay button:hover{background:var(--b-widget-hi)}
.map-stale{position:absolute;bottom:10px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:10px;background:#3b3220f2;border:1px solid #a8801f;border-radius:6px;padding:6px 7px 6px 12px;font-size:12px;color:#ffe3a3;white-space:nowrap;box-shadow:0 6px 18px #0008}
.map-stale button{background:var(--yellow);color:#17191b;border:0;border-radius:4px;padding:5px 9px;font-weight:700;font-size:12px}
.map-stale kbd{background:#0002;border-color:#0006;color:#17191b;font-size:10px}
.map-host.is-stale svg #uv-faces,.map-host.is-stale svg #uv-edges{opacity:.55}

.editor-footer{display:flex;align-items:center;gap:12px;min-height:38px;padding:4px 10px;border-top:1px solid var(--b-border);background:var(--b-area);font-size:12px;color:var(--b-dim);flex-wrap:wrap}
.island-count{color:#fff;font-weight:650;margin-right:auto}
.island-scale{display:flex;align-items:center;gap:6px}
.island-scale kbd{font-size:10px}
.island-scale input{width:110px;accent-color:var(--b-blue-hi)}
.island-scale output{color:#fff;min-width:3.4em}
.mini-button{background:var(--b-widget);padding:3px 9px;height:25px}

.statusbar{display:flex;align-items:center;gap:18px;min-height:30px;padding:5px 10px;background:var(--b-header);border-top:1px solid var(--b-border);font-size:12px;color:var(--b-dim);flex-wrap:wrap}
.status-keys{display:flex;gap:14px;flex-wrap:wrap}
.status-keys span{white-space:nowrap}
.status-keys kbd{font-size:10.5px;margin-right:3px}
.status-msg{margin-left:auto;color:#e8e8e8;text-align:right}
.status-msg.warning{color:#ffb4a8}
.status-msg.flash{animation:flash .6s}
@keyframes flash{from{color:var(--yellow)}}

/* Menus */
.context-menu{position:fixed;z-index:50;min-width:230px;max-width:300px;background:#181818f7;border:1px solid #0b0b0b;border-radius:6px;box-shadow:0 12px 30px #000a;padding:4px;color:#e6e6e6;font-size:12.5px}
.context-menu .menu-title{padding:5px 9px 6px;color:#9d9d9d;font-size:11.5px;border-bottom:1px solid #2c2c2c;margin-bottom:3px}
.context-menu button{display:flex;align-items:center;gap:10px;width:100%;background:transparent;border:0;border-radius:3px;color:inherit;text-align:left;padding:6px 9px;font-size:12.5px}
.context-menu button .m-label{flex:1}
.context-menu button small{display:block;color:#9aa2ab;font-size:11px;margin-top:1px}
.context-menu button .m-key{color:#8e8e8e;font-size:11.5px}
.context-menu button:hover:not(:disabled),.context-menu button:focus-visible{background:var(--b-blue);color:#fff;outline:none}
.context-menu button:hover small,.context-menu button:focus-visible small{color:#dce6f5}
.context-menu button:disabled{color:#6f6f6f;cursor:default}
.context-menu button .m-check{width:13px;height:13px;border:1px solid #777;border-radius:3px;display:inline-grid;place-items:center;font-size:10px}
.context-menu hr{border:0;border-top:1px solid #2c2c2c;margin:4px 3px}

/* Below the workspace */
.below{padding:22px clamp(16px,3vw,40px) 10px;display:grid;gap:14px}
.control-label{color:#aeb7c3}
.presets{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:9px}
.preset{background:#282d34;color:#eef1f4;border:1px solid #48505a;border-radius:6px;text-align:left;padding:10px 13px;font-size:.82rem;font-weight:650}
.preset span{display:block;color:#9ea9b6;font-size:.7rem;font-weight:400;margin-top:4px}
.preset.active{border-color:var(--yellow);background:#ffbf0011}
.preset:hover{border-color:#b0b8c4}
.edge-panel{border:1px solid #3d444c;border-radius:7px;background:#20242a}
.edge-panel summary{cursor:pointer;padding:11px 14px;display:flex;gap:12px;align-items:center;flex-wrap:wrap;font-size:.78rem;color:#b9c1ca}
.seam-count{margin-left:auto;color:#8f9aa6;font-size:.72rem}
.edge-panel-body{padding:0 14px 14px}
.part-label{display:inline-flex;gap:8px;align-items:center;font-size:.78rem;color:#b9c1ca;margin-bottom:10px}
#part-select{background:#353d46;color:#f2f4f7;border:1px solid #697480;border-radius:5px;padding:5px 8px;font-size:.78rem}
.edge-list{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:6px}
.edge-list button{background:#292e35;border:1px solid #4a535e;border-radius:5px;padding:8px 6px;color:#dfe5ec;font-size:.7rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.edge-list button:before{content:"";display:inline-block;width:9px;height:3px;border-radius:2px;background:#8b939c;margin-right:6px;vertical-align:3px}
.edge-list button.cut:before{background:var(--cut);height:4px}
.edge-list button.cut{border-color:#a66364}
.edge-list button.selected{border-color:var(--sel);background:#ffa01c1c}
.edge-list button:hover{border-color:#c2cad3}

.shortcuts{display:grid;grid-template-columns:.8fr 1.6fr;gap:30px;padding:36px clamp(16px,3vw,40px);border-top:1px solid var(--line);margin-top:26px}
.shortcuts h2{font-size:1.45rem;letter-spacing:-.03em;margin:9px 0 8px}
.shortcuts p{color:#aeb8c4;font-size:.8rem;line-height:1.6}
.eyebrow{color:var(--yellow)}
.shortcuts dl{margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 24px;align-content:start}
.shortcuts dl div{display:flex;gap:12px;align-items:baseline;padding:8px 0;border-bottom:1px solid #2d3238}
.shortcuts dt{flex:none;width:118px;font-size:.78rem}
.shortcuts dd{margin:0;color:#c7d0dc;font-size:.78rem;line-height:1.45}
.concept-strip{border-top:1px solid var(--line);display:flex;align-items:start;gap:28px;padding:30px clamp(16px,3vw,40px) 40px}
.concept-strip div{flex:1}
.concept-strip div span{font-size:.64rem;font-weight:750;letter-spacing:1.5px;color:var(--yellow)}
.concept-strip p{color:#aeb6c0;font-size:.76rem;line-height:1.6;margin-top:10px}
.concept-arrow{color:#a3adba;margin-top:35px}
.blender-bridge{border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1.3fr;gap:40px;padding:36px clamp(16px,3vw,40px) 50px}
.blender-bridge h2{font-size:1.45rem;letter-spacing:-.03em;margin:10px 0 9px}
.blender-bridge p{color:#aeb8c4;font-size:.8rem;line-height:1.6}
.blender-bridge ol{margin:0;padding-left:22px;display:grid;grid-template-columns:1fr 1fr;gap:12px 30px}
.blender-bridge li{font-size:.78rem;color:#c7d0dc;line-height:1.6}
.blender-bridge strong{color:#fff}
footer{border-top:1px solid var(--line);padding:20px clamp(16px,3vw,40px);display:flex;align-items:center;gap:24px;flex-wrap:wrap;color:#8f9aa7;font-size:.67rem}
footer a{color:#c7d0db}
footer span:nth-child(3){margin-left:auto}

@media(max-width:1180px){
 .live-toggle{margin-left:0}
 .guide{grid-template-columns:repeat(2,minmax(0,1fr))}
 .edge-list{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media(max-width:900px){
 .editors{grid-template-columns:1fr}
 .canvas-host,.map-host{height:min(76vw,440px);min-height:300px}
 .shortcuts,.blender-bridge{grid-template-columns:1fr;gap:20px}
 .status-msg{margin-left:0;text-align:left;width:100%}
}
@media(max-width:640px){
 .site-header{height:56px;gap:14px}
 .header-rule,.header-label{display:none}
 .lab-top{padding-top:18px}
 .blender,.guide{margin-left:10px;margin-right:10px}
 .guide{grid-template-columns:1fr 1fr}
 .guide li small{display:none}
 .topbar{gap:6px}
 .bar-sep,.menubar{display:none}
 .quick-ops{width:100%}
 .quick-ops .op{flex:1;justify-content:center;padding:0 6px}
 .icon-toggle kbd,.nav-hint,.viewer-legend{display:none}
 .stretch-toggle span{display:none}
 .status-keys{display:none}
 .presets{grid-template-columns:repeat(2,1fr)}
 .edge-list{grid-template-columns:repeat(2,minmax(0,1fr))}
 .shortcuts dl{grid-template-columns:1fr}
 .blender-bridge ol{grid-template-columns:1fr}
 .concept-strip{flex-direction:column;gap:14px}
 .concept-arrow{display:none}
 footer span:nth-child(3){margin-left:0}
 .tool{width:48px}.tool span{font-size:9px}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* Object transform (Blender N panel) */
.transform-panel{position:absolute;right:8px;top:40px;z-index:2;width:236px;background:#262626ee;border:1px solid #111;border-radius:6px;padding:7px 9px 9px;font-size:11.5px;color:#d0d0d0}
.tp-head{display:flex;justify-content:space-between;font-weight:650;color:#fff;margin-bottom:6px}
.tp-head span{font-weight:400;color:#8c8c8c;font-size:10.5px}
.tp-row{display:flex;align-items:center;gap:4px;margin-top:4px}
.tp-row>span{width:48px;flex:none;color:#aaa}
.tp-row label{flex:1;display:flex;align-items:center;gap:3px;background:#545454;border-radius:3px;padding:0 0 0 6px;color:#bbb}
.tp-row input{width:100%;min-width:0;background:transparent;border:0;color:#fff;font:inherit;font-size:11.5px;text-align:right;padding:4px 5px 4px 0;appearance:textfield;-moz-appearance:textfield}
.tp-row input::-webkit-inner-spin-button{appearance:none}
.tp-row input:disabled{color:#bbb;cursor:not-allowed}
.transform-panel.locked .tp-row label{background:#3a3a3a}
.transform-panel.warn .tp-row label{box-shadow:inset 0 0 0 1px #ffb020}
.tp-note{margin:6px 0 0;line-height:1.35;color:#a9a9a9;font-size:10.5px}
.transform-panel.warn .tp-note{color:#ffcf70}
.tp-apply{margin-top:7px;width:100%;background:#545454;color:#fff;border:1px solid #1b1b1b;border-radius:4px;padding:5px;font-size:11.5px}
.tp-apply:hover:not(:disabled){background:var(--b-blue)}
.tp-apply:disabled{opacity:.4;cursor:not-allowed}
.tp-apply kbd{font-size:9.5px}
.transform-panel.locked .tp-apply{display:none}
.op kbd{font-size:10px}
.op-hint{font-size:11.5px;color:var(--b-dim);align-self:center}
.op-hint kbd{font-size:10px}
.op-hint strong{color:#fff}
/* Experiment card */
.experiment{display:grid;grid-template-columns:1fr 1.1fr auto;gap:22px;align-items:center;border:1px solid #5b4a22;background:linear-gradient(90deg,#ffbf000d,#20242a 60%);border-radius:8px;padding:16px 18px}
.experiment h3{font-size:1.05rem;margin:6px 0 6px;letter-spacing:-.02em}
.experiment p{color:#b9c1ca;font-size:.78rem;line-height:1.55}
.experiment ol{margin:0;padding-left:20px;color:#cfd6de;font-size:.76rem;line-height:1.75}
.experiment kbd{font-size:.9em}
.experiment-actions{display:flex;flex-direction:column;gap:8px;align-items:stretch}
.exp-button{background:var(--yellow);color:#17191b;border:0;border-radius:5px;padding:10px 14px;font-weight:750;font-size:.8rem;white-space:nowrap}
.exp-button:hover{background:#ffd255}
.mini-link{background:none;border:1px solid #56606b;color:#d9dfe6;border-radius:5px;padding:7px 10px;font-size:.74rem}
.mini-link:hover{border-color:#c2cad3}
@media(max-width:1000px){.experiment{grid-template-columns:1fr}.experiment-actions{flex-direction:row}}
@media(max-width:640px){.transform-panel{top:auto;bottom:62px;right:6px;width:200px}.op-hint{display:none}}
@media(max-width:640px){.transform-panel.locked:not(.warn){display:none}}

/* ─── Animation Lab ─────────────────────────────────────────────────────── */
.stage-switch .model-button{min-width:150px}
.stage-switch .model-button b{color:var(--yellow);margin-right:4px}
.anim-editors{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.25fr);gap:2px;background:var(--b-border)}
.view-host{position:relative;height:430px;background:#3a3a3a}
.view-host canvas,.graph-host canvas,.timeline-host canvas{display:block;width:100%;height:100%;touch-action:none}
.view-overlay{position:absolute;left:10px;top:8px;font-size:12px;color:#e8e8e8;text-shadow:0 1px 2px #000;pointer-events:none;line-height:1.5}
.view-overlay b{color:#fff}
.view-toggles{display:flex;gap:12px;flex-wrap:wrap;margin-left:auto}
.view-toggles .live-toggle{margin-left:0}
.graph-body{display:grid;grid-template-columns:150px minmax(0,1fr) 190px;height:430px;background:var(--b-editor)}
.channels{background:#2b2b2b;border-right:1px solid var(--b-border);padding:6px 0;overflow:auto;font-size:12px}
.channels .ch-group{padding:4px 8px;color:#9aa3ad;font-size:10.5px;letter-spacing:.8px;font-weight:700}
.channel{display:flex;align-items:center;gap:6px;padding:4px 8px;cursor:pointer;user-select:none;color:#d7d7d7}
.channel:hover{background:#353535}
.channel.active{background:#334d80;color:#fff}
.channel .eye{width:18px;height:18px;border:0;background:none;color:#cfcfcf;padding:0;display:grid;place-items:center;font-size:12px}
.channel .eye[aria-pressed="false"]{color:#666}
.channel .swatch{width:10px;height:10px;border-radius:2px;flex:none}
.channel .ch-name{flex:1;white-space:nowrap}
.channel.locked .ch-name,.channel.driven .ch-name{color:#9a9a9a;font-style:italic}
.channel .ch-lock{font-size:10px;color:#888}
.graph-host{position:relative;min-width:0}
.graph-hint{position:absolute;right:8px;bottom:6px;font-size:11px;color:#8d8d8d;pointer-events:none}
.sidebar{background:#2b2b2b;border-left:1px solid var(--b-border);padding:8px;font-size:12px;overflow:auto}
.sidebar h4{margin:0 0 8px;font-size:11px;letter-spacing:.8px;color:#aab2bb;font-weight:700;text-transform:uppercase}
.sidebar label{display:grid;grid-template-columns:66px 1fr;align-items:center;gap:6px;margin-bottom:6px;color:#c9c9c9}
.sidebar input,.sidebar select{width:100%;background:var(--b-field);color:#eee;border:1px solid #111;border-radius:4px;padding:3px 6px;font-size:12px}
.sidebar .sb-empty{color:#8d8d8d;font-size:11.5px;line-height:1.5}
.sidebar .sb-sep{border-top:1px solid #3d3d3d;margin:10px 0}
.sidebar .sb-stat{display:flex;justify-content:space-between;color:#bdbdbd;margin:3px 0}
.sidebar .sb-stat b{color:#fff;font-weight:600}
.timeline{background:var(--b-area)}
.timeline .editor-header{gap:8px}
.play-controls{display:flex;gap:2px}
.play-controls button{background:var(--b-widget);border:1px solid #1b1b1b;color:#eee;border-radius:3px;width:30px;height:26px;padding:0;font-size:12px}
.play-controls button:hover{background:var(--b-widget-hi)}
.play-controls button[aria-pressed="true"]{background:var(--b-blue)}
.frame-field{display:flex;align-items:center;gap:5px;color:var(--b-dim);font-size:12px}
.frame-field input{width:58px;background:var(--b-field);border:1px solid #111;color:#eee;border-radius:4px;padding:3px 6px;font-size:12px;text-align:center}
.frame-field input.current{border-color:var(--b-blue)}
.timeline-host{height:64px;background:var(--b-editor)}
.fps{color:#8d8d8d;font-size:11.5px;margin-left:auto}
.step-card{display:grid;grid-template-columns:1fr 1.15fr auto;gap:22px;align-items:start;border:1px solid #5b4a22;background:linear-gradient(90deg,#ffbf000d,#20242a 60%);border-radius:8px;padding:16px 18px}
.step-card h3{font-size:1.05rem;margin:6px 0 6px;letter-spacing:-.02em}
.step-card p{color:#b9c1ca;font-size:.8rem;line-height:1.6}
.step-card ol{margin:0;padding-left:20px;color:#cfd6de;font-size:.78rem;line-height:1.8}
.step-card .why{margin-top:8px;color:#aeb8c4;font-size:.76rem}
.step-card.done{border-color:#3d6b4c;background:linear-gradient(90deg,#3d6b4c22,#20242a 60%)}
.step-state{font-size:.72rem;font-weight:700;color:var(--yellow)}
.step-card.done .step-state{color:#91d76c}
.step-actions{display:flex;flex-direction:column;gap:8px;min-width:180px}
.guide li{cursor:pointer}
.guide.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.score{display:flex;align-items:center;gap:8px;font-size:12px;color:#ddd}
.score meter{width:90px}
@media(max-width:1180px){.anim-editors{grid-template-columns:1fr}.graph-body{grid-template-columns:130px minmax(0,1fr)}.sidebar{display:none}}
@media(max-width:900px){.step-card{grid-template-columns:1fr}.view-host,.graph-body{height:340px}}
@media(max-width:640px){.graph-body{grid-template-columns:1fr}.channels{display:none}.view-toggles{margin-left:0}}

/* ─── Skin Weights Lab ──────────────────────────────────────────────────── */
.guide.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.mode-pill{background:var(--b-widget);border:1px solid #1b1b1b;border-radius:4px;padding:3px 10px;font-size:12px;color:#fff}
.hdr-field{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--b-dim);white-space:nowrap}
.hdr-field select{background:var(--b-widget);color:#eee;border:1px solid #1b1b1b;border-radius:4px;padding:2px 6px;font-size:12px}
.hdr-field input[type=range]{width:86px;accent-color:var(--b-blue)}
.hdr-field output{min-width:38px;color:#eee;font-variant-numeric:tabular-nums}
.tool-header{display:flex;align-items:center;gap:16px;flex-wrap:wrap;min-height:34px;padding:3px 10px;background:var(--b-header);border-bottom:1px solid var(--b-border)}
.tool-header .live-toggle{margin-left:0}
.tool-header.disabled .hdr-field:not(.keep){opacity:.4}
.skin-body{display:grid;grid-template-columns:48px minmax(0,1fr) 270px;height:560px;background:var(--b-editor)}
.toolbar{display:flex;flex-direction:column;gap:3px;padding:6px 5px;background:#2b2b2b;border-right:1px solid var(--b-border)}
.toolbar button{width:38px;height:44px;border:1px solid #1b1b1b;border-radius:5px;background:var(--b-widget);color:#ddd;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;padding:0}
.toolbar button svg{width:18px;height:18px}
.toolbar button span{font-size:8.5px;letter-spacing:.2px}
.toolbar button:hover{background:var(--b-widget-hi)}
.toolbar button[aria-pressed="true"]{background:var(--b-blue);color:#fff}
.skin-view{height:100%;background:radial-gradient(ellipse at 50% 40%,#454545,#2e2e2e 75%);overflow:hidden}
.skin-view canvas{cursor:none}
.skin-view.orbiting canvas,.skin-view.no-brush canvas{cursor:default}
.brush-ring{position:absolute;border:1.5px solid #fff;border-radius:50%;pointer-events:none;box-shadow:0 0 0 1px #0006,inset 0 0 0 1px #0006;transform:translate(-50%,-50%)}
.brush-ring::after{content:"";position:absolute;inset:0;margin:auto;border-radius:50%;border:1px solid #fff8;width:var(--inner,50%);height:var(--inner,50%)}
.brush-ring.sample{border-style:dashed}
.gradient-key{position:absolute;right:10px;top:8px;display:flex;align-items:center;gap:5px;font-size:11px;color:#ddd;text-shadow:0 1px 2px #000;pointer-events:none}
.gradient-key i{display:block;width:110px;height:9px;border-radius:2px;background:linear-gradient(90deg,#0000ff,#00ffff,#00ff00,#ffff00,#ff0000);border:1px solid #0008}
.last-op{position:absolute;left:8px;bottom:8px;max-width:320px;background:#232323ee;border:1px solid #0b0b0b;border-radius:6px;padding:7px 9px;font-size:12px;color:#ddd;min-width:190px;box-shadow:0 6px 18px #0007}
.last-op h5{margin:0 0 6px;font-size:11.5px;font-weight:600;color:#fff}
.last-op label{display:grid;grid-template-columns:70px 1fr;gap:6px;align-items:center;margin:3px 0}
.last-op input,.last-op select{background:var(--b-field);color:#eee;border:1px solid #111;border-radius:4px;padding:2px 5px;font-size:12px;width:100%}
.props{background:#2b2b2b;border-left:1px solid var(--b-border);overflow:auto;font-size:12px}
.panel{border-bottom:1px solid #1d1d1d;padding:8px 10px}
.panel h4{margin:0 0 7px;font-size:11px;letter-spacing:.8px;color:#aab2bb;font-weight:700;text-transform:uppercase;display:flex;justify-content:space-between;align-items:center}
.panel h4 small{letter-spacing:0;text-transform:none;font-weight:400;color:#8d8d8d}
.vg-list{background:#1f1f1f;border:1px solid #151515;border-radius:4px;padding:2px 0}
.vg{display:flex;align-items:center;gap:7px;padding:3px 8px;cursor:pointer;color:#d7d7d7;user-select:none}
.vg:hover{background:#353535}
.vg.active{background:#334d80;color:#fff}
.vg .vg-icon{width:10px;height:10px;border-radius:2px;background:#8a8a8a;flex:none}
.vg .vg-name{flex:1}
.vg .vg-w{font-variant-numeric:tabular-nums;color:#b9b9b9;min-width:34px;text-align:right}
.vg .vg-bar{width:44px;height:5px;background:#111;border-radius:3px;overflow:hidden}
.vg .vg-bar i{display:block;height:100%}
.pose-row{display:grid;grid-template-columns:44px 1fr 42px;gap:6px;align-items:center;margin:4px 0;color:#c9c9c9}
.pose-row input{width:100%;accent-color:var(--b-blue)}
.pose-row output{text-align:right;font-variant-numeric:tabular-nums;color:#eee}
.panel .sb-stat{display:flex;justify-content:space-between;color:#bdbdbd;margin:3px 0}
.panel .sb-stat b{color:#fff;font-weight:600;font-variant-numeric:tabular-nums}
.panel .sb-stat.bad b{color:#ff8a65}
.panel .sb-stat.good b{color:#91d76c}
.panel .sb-empty{color:#8d8d8d;font-size:11.5px;line-height:1.5;margin:0}
.panel .row-buttons{display:flex;gap:6px;margin-top:6px;flex-wrap:wrap}
.panel .row-buttons button{background:var(--b-widget);border:1px solid #1b1b1b;color:#eee;border-radius:4px;padding:4px 8px;font-size:11.5px}
.panel .row-buttons button:hover{background:var(--b-widget-hi)}
.cursor-weights .sb-stat span{display:flex;align-items:center;gap:6px}
.cursor-weights i{display:inline-block;width:9px;height:9px;border-radius:2px;border:1px solid #0008}
@media(max-width:1180px){.skin-body{grid-template-columns:48px minmax(0,1fr) 220px}}
@media(max-width:900px){.skin-body{grid-template-columns:44px minmax(0,1fr);grid-template-rows:440px auto;height:auto}.props{grid-column:1/-1;border-left:0;border-top:1px solid var(--b-border)}.guide.two{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.skin-body{grid-template-rows:360px auto}.tool-header{gap:10px}.hdr-field input[type=range]{width:64px}.gradient-key{display:none}}
.pose-bone{padding:3px 6px;margin:0 -6px;border-radius:4px}
.pose-bone.active{background:#334d8033}
.pose-name{font-size:11.5px;color:#e6e6e6;font-weight:600;margin-top:3px}
.pose-bone.active .pose-name{color:#9cc2ff}
.pose-bone.compact{display:flex;justify-content:space-between;align-items:center;width:calc(100% + 12px);background:none;border:0;color:#bbb;text-align:left;padding:4px 6px;font-size:11.5px}
.pose-bone.compact:hover{background:#353535}
.pose-bone.compact .pose-name{margin:0;font-weight:500;color:#ddd}
.pose-vals{color:#9a9a9a;font-variant-numeric:tabular-nums}
@media(max-width:640px){#workspace .menubar{display:flex}}

.pane{display:flex;flex-direction:column;min-width:0;background:var(--b-editor)}
.seg{display:flex;gap:2px}
.seg button{flex:1;background:var(--b-widget);border:1px solid #1b1b1b;color:#eee;padding:5px 0;font-weight:700;font-size:12.5px}
.seg button:first-child{border-radius:4px 0 0 4px}.seg button:last-child{border-radius:0 4px 4px 0}
.seg button[aria-pressed="true"]{background:var(--b-blue)}
.seg button:disabled{opacity:.35;cursor:not-allowed}
.bl .bl-sec{font-size:11.5px;color:#eee;font-weight:600;margin:9px 0 4px;padding-top:6px;border-top:1px solid #333}
.bl .bl-sec:first-of-type{border-top:0;padding-top:0}
.bl-row{display:grid;grid-template-columns:100px 1fr 22px;gap:6px;align-items:center;margin:4px 0;color:#c9c9c9;font-size:12px}
.bl-row input,.bl-row select{width:100%;background:#545454;color:#fff;border:1px solid #1b1b1b;border-radius:4px;padding:3px 6px;font-size:12px;text-align:center}
.bl-row em{font-style:normal;color:#9a9a9a;font-size:11px}
.bl-fixed{background:#3a3a3a;border:1px solid #1b1b1b;border-radius:4px;padding:3px 6px;color:#bbb;text-align:center}
.bl-check{display:flex;align-items:center;gap:7px;cursor:pointer}
.bl-check input{accent-color:var(--b-blue)}
.bl-off{opacity:.4;pointer-events:none}

.guide.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.hdr-field select,#i-slot{background:var(--b-widget);color:#eee;border:1px solid #1b1b1b;border-radius:4px;padding:2px 5px;font-size:12px}
.seg.small button{padding:2px 8px;font-size:11.5px;flex:none}
.inspector{min-height:30px;padding:6px 10px;background:var(--b-area);border-top:1px solid var(--b-border);font:12px/1.4 'Consolas','Menlo',monospace;color:#cfd6de}
.inspector b{color:#fff}
.inspector .sw{display:inline-block;width:11px;height:11px;border:1px solid #000;border-radius:2px;vertical-align:-1px}
.inspector .bad{color:#ff8a65;font-weight:700}
.ol-list{background:#1f1f1f;border:1px solid #151515;border-radius:4px;padding:2px 0}
.ol-row{display:flex;align-items:center;gap:7px;width:100%;padding:4px 8px;background:none;border:0;color:#d7d7d7;font-size:12px;text-align:left;cursor:pointer}
.ol-row svg{width:13px;height:13px;flex:none;color:#ff9a2e}
.ol-row span{flex:1}
.ol-row small{color:#8d8d8d;font-variant-numeric:tabular-nums}
.ol-row:hover{background:#353535}
.ol-row.sel{background:#334d8066;color:#fff}
.ol-row.active{background:#334d80;color:#fff}
.ol-row.active span{color:#ffd9a3}
.bl-check.sub{margin-left:18px}
.bl .bl-check{margin:5px 0;color:#d7d7d7;font-size:12px}
.sb-stat.good b{color:#56d364}
.sb-stat.bad b{color:#ff8a65}
.c-hint{font-size:11.5px;color:#ffd24a;margin:6px 0 0}
.bl-row.stack{grid-template-columns:1fr}
.bl-row.stack .seg{grid-column:auto}
.bl-row.stack .seg button{flex:1}
.guide.five{grid-template-columns:repeat(5,minmax(0,1fr))}
.bl-note{margin:-2px 0 4px 106px;font-size:11px;color:#8fb8ff;font-variant-numeric:tabular-nums}
/* ─── Lighting Lab ─────────────────────────────────────────────────────── */
.stage-switch{flex-wrap:wrap}
.stage-switch .model-button{min-width:132px}
.light-body{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr) 300px;background:var(--b-border);gap:2px;height:640px}
.light-body .editor{display:flex;flex-direction:column;min-height:0}
.light-body .editor-header{flex-wrap:wrap;row-gap:4px}
.view-host.light-view{height:auto;flex:1;min-height:0;overflow:hidden}
.view-host.light-view canvas{position:absolute;inset:0}
.render-host{flex:1;min-height:0;position:relative;display:flex;align-items:center;justify-content:center;background:#141414;overflow:hidden;padding:8px}
.render-host canvas{display:block;max-width:100%;max-height:100%;width:auto;height:auto;aspect-ratio:640/440;box-shadow:0 8px 24px #000a;cursor:crosshair}
.samples{margin-left:auto;font:11.5px Consolas,Menlo,monospace;color:#9be38a}
.reference{position:absolute;right:14px;top:14px;margin:0;background:#111d;border:1px solid #ffffff33;border-radius:5px;padding:4px;display:flex;flex-direction:column;gap:3px}
.reference figcaption{font-size:10.5px;letter-spacing:1px;text-transform:uppercase;color:#ffd24a;font-weight:700}
.reference img{display:block;width:170px;height:auto}
.fc-legend{position:absolute;left:14px;bottom:14px;display:flex;flex-wrap:wrap;gap:2px 8px;max-width:calc(100% - 28px);background:#111d;border:1px solid #ffffff22;border-radius:5px;padding:5px 8px;font:10.5px Consolas,Menlo,monospace;color:#ddd}
.fc-legend span{display:inline-flex;align-items:center;gap:4px}
.fc-legend i,.meter-strip i.fc{display:inline-block;width:10px;height:10px;border-radius:2px;border:1px solid #000}
.meter-strip{display:flex;flex-wrap:wrap;gap:4px 16px;min-height:34px;align-items:center;padding:6px 12px;background:#070808;border-top:1px solid #000;font:600 12.5px/1.2 Consolas,Menlo,monospace;color:#cfd6de}
.meter-strip span{display:inline-flex;align-items:center;gap:5px}
.meter-strip b{color:#9be38a}.meter-strip small{color:#8d8d8d;font-weight:400}
.light-body .props{overflow:auto;min-height:0}
.ol-row{position:relative}
.ol-row.off span,.ol-row.off small{opacity:.45}
.ol-row .eye{margin-left:6px;background:none;border:0;color:#bbb;padding:0 2px;cursor:pointer;display:flex}
.ol-row .eye svg{width:15px;height:15px}
.ol-row .eye:hover{color:#fff}
.bl-row input[type=color]{padding:0;height:24px;background:none;border:1px solid #1b1b1b}
.kelvin-bar{position:relative;height:8px;margin:0 0 6px 106px;border-radius:3px;background:linear-gradient(90deg,#ff6a00,#ffb46b 12%,#ffe4c6 25%,#fff 30%,#e6ecff 45%,#b7c9ff 100%)}
.kelvin-bar i{position:absolute;top:-3px;width:2px;height:14px;background:#111;box-shadow:0 0 0 1px #fff}
table.meter{width:100%;border-collapse:collapse;font:11.5px Consolas,Menlo,monospace;color:#cfd6de}
table.meter td{padding:3px 4px;border-bottom:1px solid #333}
table.meter td:nth-child(2),table.meter td:nth-child(3){text-align:right;color:#9be38a}
@media(max-width:1280px){.light-body{grid-template-columns:minmax(0,1fr) minmax(0,1fr);height:auto}.light-body .editor{height:480px}.light-body .props{grid-column:1/-1;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));border-left:0;border-top:1px solid var(--b-border)}}
@media(max-width:900px){.light-body{grid-template-columns:1fr}.light-body .editor{height:400px}.guide.three,.guide.five{grid-template-columns:1fr 1fr}}
.subject-seg{margin-bottom:6px}
.model-tools{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0}
.model-tools .mini-link[aria-pressed="true"]{border-color:var(--yellow);color:#fff}
.model-name{color:#e6e6e6;font-weight:600}