:root{--bg:#ffffff;--bg-2:#f4f6f8;--bg-3:#eceff2;--panel:#ffffff;--panel-2:#f7f9fa;--line:#d4d9dd;--line-soft:#e4e8eb;--txt:#2b2f33;--txt-dim:#5c636a;--txt-faint:#9aa1a8;--accent:#0c79e8;--accent-2:#0a63bd;--accent-soft:rgba(12,121,232,.12);--good:#1f9d57;--warn:#c77700;--bad:#d23b3b;--sketch:#0c79e8;--topbar-h:42px;--toolbar-h:62px;--tabbar-h:34px;--status-h:22px;--shadow:0 4px 18px rgba(25,35,55,.18);--mono:"SF Mono",ui-monospace,"Cascadia Code",Consolas,monospace}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:Segoe UI,system-ui,Arial,sans-serif;font-size:13px;color:var(--txt);background:var(--bg);overflow:hidden;-webkit-user-select:none;user-select:none;-webkit-font-smoothing:antialiased}button{font-family:inherit;color:inherit;cursor:pointer;border:none;background:none}input{font-family:inherit}.hidden{display:none!important}svg{display:block}#app{display:grid;grid-template-rows:var(--topbar-h) var(--toolbar-h) 1fr var(--tabbar-h);grid-template-columns:minmax(0,1fr);height:100vh;width:100vw}#topbar{display:flex;align-items:center;justify-content:space-between;background:var(--panel-2);border-bottom:1px solid var(--line);padding:0 10px;gap:12px}.topbar-left{display:flex;align-items:center;gap:8px;min-width:0}.logo-btn{display:flex;align-items:center;padding:4px;border-radius:6px}.brand{font-size:15px;font-weight:700;letter-spacing:.2px;white-space:nowrap;background:linear-gradient(90deg,#1a8cff,#7b5cff);-webkit-background-clip:text;background-clip:text;color:transparent;padding-right:10px;margin-right:4px;border-right:1px solid var(--line-soft)}.doc-title{display:flex;align-items:center;gap:8px}#doc-name{background:transparent;border:1px solid transparent;border-radius:4px;color:var(--txt);font-size:14px;font-weight:600;padding:4px 6px;width:190px}#doc-name:hover{border-color:var(--line-soft)}#doc-name:focus{outline:none;border-color:var(--accent);background:var(--bg)}.doc-meta{font-size:11px;color:var(--txt-dim);background:var(--bg-3);padding:2px 8px;border-radius:10px;border:1px solid var(--line-soft)}#menu-bar{display:flex;align-items:center;gap:2px;margin-left:6px}.menu-item{padding:6px 10px;border-radius:5px;color:var(--txt-dim);font-size:13px}.topbar-right{display:flex;align-items:center;gap:10px}.undo-redo{display:flex;gap:2px}.icon-btn{width:30px;height:30px;border-radius:5px;display:flex;align-items:center;justify-content:center;color:var(--txt-dim)}.icon-btn:hover{background:var(--bg-3);color:var(--txt)}.icon-btn:disabled{opacity:.35;cursor:default}.icon-btn svg{width:17px;height:17px}.pill-btn{padding:6px 12px;border-radius:5px;color:var(--txt-dim);font-size:13px}.pill-btn:hover{background:var(--bg-3);color:var(--txt)}.pill-btn.primary{background:var(--accent);color:#fff;font-weight:600}.pill-btn.primary:hover{background:var(--accent-2)}.avatar{width:30px;height:30px;border-radius:50%;background:#7a5cff;color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}#toolbar{display:flex;align-items:stretch;gap:0;background:var(--panel);border-bottom:1px solid var(--line);padding:0 6px;overflow-x:auto;overflow-y:hidden}#toolbar::-webkit-scrollbar{height:6px}.tool-group{display:flex;align-items:center;padding:0 6px;border-right:1px solid var(--line-soft)}.tool-group:last-child{border-right:none}.tool{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;min-width:48px;height:54px;padding:4px 6px;border-radius:6px;color:var(--txt);position:relative}.tool .ico{width:24px;height:24px;display:flex;align-items:center;justify-content:center}.tool .ico svg{width:23px;height:23px;stroke:var(--txt);fill:none}.tool .lbl{font-size:10.5px;color:var(--txt-dim);white-space:nowrap;line-height:1;max-width:92px;overflow:hidden;text-overflow:ellipsis}.tool.has-caret .lbl:after{content:" ▾";color:var(--txt-faint)}.tool.split .lbl:after{content:none}.tool .caret{position:absolute;top:2px;right:1px;width:15px;height:17px;display:flex;align-items:center;justify-content:center;border-radius:4px;font-size:10px;color:var(--txt-faint)}.tool .caret:hover{background:var(--line-soft);color:var(--txt)}.tool:disabled{opacity:.4;cursor:default}.tool:disabled:hover{background:none}#workspace{display:flex;min-height:0;position:relative;background:var(--line)}#left-panel{width:262px;min-width:170px;max-width:520px;background:var(--panel);display:flex;flex-direction:column;position:relative}.panel-section{display:flex;flex-direction:column;min-height:0;flex:1}.panel-head{display:flex;align-items:center;justify-content:space-between;padding:7px 10px;font-size:12px;font-weight:600;color:var(--txt-dim);border-bottom:1px solid var(--line);text-transform:uppercase;letter-spacing:.4px}.panel-head-actions{display:flex;gap:4px}.mini-btn{width:22px;height:22px;border-radius:4px;color:var(--txt-dim);font-size:13px;display:flex;align-items:center;justify-content:center}.mini-btn:hover{background:var(--bg-3);color:var(--txt)}#feature-tree{flex:1;overflow:auto;padding:4px 0}.left-resizer{position:absolute;top:0;right:-2px;width:5px;height:100%;cursor:col-resize;z-index:5}.left-resizer:hover{background:var(--accent)}.tree-row{display:flex;align-items:center;gap:6px;padding:3px 8px 3px 10px;cursor:default;font-size:12.5px;color:var(--txt);white-space:nowrap;position:relative}.tree-row.selected{background:var(--accent-soft);box-shadow:inset 2px 0 0 var(--accent)}.tree-row.suppressed{opacity:.45;font-style:italic}.tree-row.error{color:var(--bad)}.tree-row .tw-ico{width:18px;height:18px;flex:0 0 18px;display:flex;align-items:center;justify-content:center}.tree-row .tw-ico svg{width:16px;height:16px;stroke:var(--txt-dim);fill:none}.tree-row.selected .tw-ico svg{stroke:var(--accent)}.tree-row .tw-name{flex:1;overflow:hidden;text-overflow:ellipsis}.tree-row .tw-name input{background:var(--bg);border:1px solid var(--accent);border-radius:3px;color:var(--txt);width:100%;padding:1px 4px;font-size:12.5px}.tree-row .tw-eye{width:18px;opacity:0;flex:0 0 18px;color:var(--txt-dim);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:opacity .12s ease,color .12s ease}.tree-row:hover .tw-eye{opacity:1}.tree-row .tw-eye:hover{color:var(--accent)}.tree-row .tw-eye.hidden-on{opacity:1;color:var(--txt-faint)}.tree-row .tw-eye svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.7}.tree-indent{display:inline-block;width:14px;flex:0 0 14px}.tree-caret{width:14px;flex:0 0 14px;color:var(--txt-faint);font-size:10px;text-align:center;cursor:pointer}.tree-section-label{padding:6px 10px 2px;font-size:10.5px;color:var(--txt-faint);text-transform:uppercase;letter-spacing:.5px}.tree-divider{height:1px;background:var(--line);margin:5px 0}.rollback-bar{height:3px;background:var(--accent);margin:2px 8px;border-radius:2px;cursor:row-resize;box-shadow:0 0 6px var(--accent)}#viewport-container{flex:1;position:relative;background:radial-gradient(circle at 50% 32%,#fff,#eef1f4 55%,#dfe4e9);overflow:hidden}#viewport{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;display:block;outline:none}#view-toolbar{position:absolute;top:10px;right:14px;display:flex;gap:4px;background:#ffffffe6;border:1px solid var(--line-soft);border-radius:7px;padding:3px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);box-shadow:0 1px 4px #00000014}.view-btn{width:30px;height:30px;border-radius:5px;display:flex;align-items:center;justify-content:center;color:var(--txt-dim)}.view-btn:hover{background:var(--bg-3);color:var(--txt)}.view-btn.active{background:var(--accent-soft);color:var(--accent)}.view-btn svg{width:18px;height:18px;stroke:currentColor;fill:none}#viewcube-wrap{position:absolute;top:58px;right:26px;width:104px;height:124px;z-index:6}#viewcube{width:104px;height:104px;margin:0 auto;position:relative}.vc-canvas{display:block;width:104px;height:104px}.vc-arrow{position:absolute;width:18px;height:18px;padding:0;border:0;border-radius:6px;display:none;align-items:center;justify-content:center;background:transparent;color:var(--txt-faint);cursor:pointer}.vc-arrow svg{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.vc-arrow:hover{color:var(--accent);background:var(--bg-3)}#viewcube.face-on .vc-arrow{display:flex}.vc-arrow.up{top:2px;left:43px}.vc-arrow.down{bottom:6px;left:43px}.vc-arrow.left{left:2px;top:43px}.vc-arrow.right{right:2px;top:43px}.vc-home{position:absolute;left:50%;bottom:0;transform:translate(-50%);width:30px;height:24px;border-radius:5px;background:#ffffffeb;border:1px solid var(--line-soft);color:var(--txt-dim);display:flex;align-items:center;justify-content:center;box-shadow:0 1px 3px #0000001a}.vc-home:hover{color:var(--accent);border-color:var(--accent)}.vc-home:before{content:"⌂";font-size:14px}#trihedron{position:absolute;left:14px;bottom:14px;width:92px;height:92px;pointer-events:none;opacity:.95}#drawing-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#dde1e6;display:flex;align-items:safe center;justify-content:safe center;overflow:auto;padding:16px;z-index:4;container-type:size}.dwg-sheet{width:min(96cqw,1400px,calc(94cqh * 1000 / 680));aspect-ratio:1000/680;background:#fbfbf7;box-shadow:0 10px 40px #00000080;position:relative;flex:none}.dwg-sheet svg{display:block}.dwg-empty{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:#5a6b78;font-size:15px;text-align:center;font-family:Segoe UI,sans-serif}#toolbar,#sketch-toolbar{grid-row:2;grid-column:1}#workspace{grid-row:3}#tabbar{grid-row:4}#app.sketching #toolbar{display:none}#sketch-toolbar{display:flex;align-items:center;gap:3px;background:var(--panel);border-bottom:1px solid var(--line);padding:0 10px;overflow-x:auto;overflow-y:hidden}#sketch-toolbar.hidden{display:none}#sketch-toolbar::-webkit-scrollbar{height:6px}#sketch-confirm{position:absolute;top:12px;left:50%;transform:translate(-50%);display:flex;gap:7px;background:#fffffff5;border:1px solid var(--line-soft);border-radius:11px;padding:6px;box-shadow:var(--shadow);z-index:7}#sketch-confirm.hidden{display:none}.skc-btn{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;font-weight:700;transition:transform .12s var(--e-out),filter .12s}.skc-btn:hover{transform:scale(1.08);filter:brightness(1.1)}.skc-btn.ok{background:var(--good)}.skc-btn.no{background:var(--bad)}.sk-tool{position:relative;min-width:40px;max-width:66px;height:46px;padding:3px 5px 2px;border-radius:6px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--txt-dim);overflow:hidden}.sk-tool:hover{background:var(--bg-3);color:var(--txt)}.sk-tool.active{background:var(--accent);color:#fff}.sk-tool.has-caret:after{content:"";position:absolute;right:3px;top:3px;border-left:3px solid transparent;border-right:3px solid transparent;border-top:4px solid currentColor;opacity:.55}.sk-tool svg{width:19px;height:19px;stroke:currentColor;fill:none;flex:none}.sk-lbl{font-size:8.5px;line-height:1;font-weight:600;letter-spacing:.01em;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;opacity:.85}.sk-tool.active .sk-lbl{opacity:1}.sk-sym{font-size:15px;font-weight:700;line-height:1}.sk-tool.sk-new:before{content:"";position:absolute;top:3px;left:3px;width:5px;height:5px;border-radius:50%;background:var(--accent);animation:sk-new-pulse 2.2s ease-in-out infinite}@keyframes sk-new-pulse{0%,to{opacity:.35;transform:scale(1)}50%{opacity:1;transform:scale(1.5)}}.sk-tool.sk-new:hover{transform:translateY(-2px) scale(1.07);box-shadow:0 3px 10px color-mix(in srgb,var(--accent) 35%,transparent);color:var(--accent)}.sk-sep{width:1px;background:var(--line-soft);margin:3px}.sk-tool.confirm{background:var(--good);color:#fff;width:auto;padding:0 12px;font-weight:600;font-size:12px}.sk-tool.cancel{background:var(--bad);color:#fff;width:auto;padding:0 12px;font-weight:600;font-size:12px}#mode-hint{position:absolute;bottom:16px;left:50%;transform:translate(-50%);background:#fffffff5;border:1px solid var(--line-soft);border-radius:6px;padding:6px 14px;font-size:12px;color:var(--txt-dim);z-index:7;box-shadow:var(--shadow)}#mode-hint b{color:var(--accent)}.dim-edit{position:absolute;z-index:30;width:72px;padding:3px 6px;font:600 13px Segoe UI,Arial,sans-serif;color:#10202c;background:#fff;border:1.6px solid var(--accent,#0c79e8);border-radius:5px;box-shadow:0 3px 10px #00000047;outline:none;text-align:center}.dim-edit::-webkit-outer-spin-button,.dim-edit::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}#sk-infer{position:absolute;z-index:28;pointer-events:none;min-width:18px;height:18px;padding:0 4px;display:flex;align-items:center;justify-content:center;font:700 13px Segoe UI,Arial,sans-serif;color:#fff;background:var(--accent,#0c79e8);border-radius:4px;box-shadow:0 1px 4px #0000004d}.ai-mic.listening{color:#e34d6b}.ai-mic.listening svg{animation:ai-mic-pulse 1.2s ease-in-out infinite}@keyframes ai-mic-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.18)}}.ai-voicebars{display:flex;gap:2.5px;align-items:flex-end;height:16px;margin-left:6px}.ai-voicebars i{width:3px;background:#e34d6b;border-radius:2px;height:3px;transition:height .09s linear}.ai-listenrow{display:flex;align-items:center;gap:6px;padding:4px 10px;font-size:11.5px;color:var(--txt-dim)}.ai-listenrow b{color:#e34d6b}#sk-dragdim{position:fixed;z-index:29;pointer-events:none;display:none;white-space:nowrap;padding:3px 8px;font:600 12.5px Segoe UI,Arial,sans-serif;color:var(--accent,#0c79e8);background:#fffffff7;border:1.4px solid var(--accent,#0c79e8);border-radius:5px;box-shadow:0 2px 8px #0000002e}:root[data-theme=dark] #sk-dragdim{background:#1a1e24f5}.tree-row.dragging{opacity:.45}.tree-row.drag-over{box-shadow:inset 0 2px 0 var(--accent,#0c79e8)}.ref-btn{text-align:left}.ref-btn.ref-arm{border-color:var(--accent,#0c79e8);box-shadow:0 0 0 2px #0c79e84d;color:var(--accent,#0c79e8)}#feature-dialog{position:absolute;top:54px;left:14px;width:280px;background:var(--panel);border:1px solid var(--line-soft);border-radius:8px;box-shadow:var(--shadow);z-index:8;overflow:hidden}.fd-head{display:flex;align-items:center;justify-content:space-between;padding:9px 12px;background:var(--bg-3);border-bottom:1px solid var(--line)}.fd-head .fd-title{font-weight:600;font-size:13px;display:flex;align-items:center;gap:7px}.fd-head .fd-title svg{width:17px;height:17px;stroke:var(--accent);fill:none}.fd-head .fd-x{color:var(--txt-dim);font-size:16px;line-height:1}.fd-body{padding:11px 12px;display:flex;flex-direction:column;gap:11px;max-height:62vh;overflow:auto}.fd-row{display:flex;flex-direction:column;gap:4px}.fd-row label{font-size:11px;color:var(--txt-dim);text-transform:uppercase;letter-spacing:.4px}.fd-row .with-unit{display:flex;align-items:center;gap:0}.field{background:var(--bg);border:1px solid var(--line-soft);border-radius:5px;color:var(--txt);padding:6px 8px;font-size:13px;width:100%}.field:focus{outline:none;border-color:var(--accent)}.with-unit .field{border-radius:5px 0 0 5px;border-right:none}.with-unit .unit{background:var(--bg-3);border:1px solid var(--line-soft);border-radius:0 5px 5px 0;padding:6px 9px;font-size:12px;color:var(--txt-dim)}.seg{display:flex;flex-wrap:wrap;background:var(--bg);border:1px solid var(--line-soft);border-radius:5px;overflow:hidden}.seg button{flex:1 1 auto;min-width:54px;padding:6px;font-size:11.5px;color:var(--txt-dim);display:flex;align-items:center;justify-content:center;gap:4px;white-space:nowrap}.seg button.on{background:var(--accent);color:#fff}.seg button svg{width:15px;height:15px;stroke:currentColor;fill:none}.fd-foot{display:flex;gap:8px;padding:10px 12px;border-top:1px solid var(--line);background:var(--panel-2)}.fd-foot button{flex:1;padding:8px;border-radius:5px;font-size:13px;font-weight:600}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-2)}.btn-ghost{background:var(--bg-3);color:var(--txt-dim)}.btn-ghost:hover{color:var(--txt)}.pick-btn{display:flex;align-items:center;justify-content:space-between;width:100%;background:var(--bg);border:1px solid var(--line-soft);border-radius:5px;padding:6px 8px;font-size:12px;color:var(--txt-dim)}.pick-btn.armed{border-color:var(--accent);color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.pick-btn .cnt{background:var(--bg-3);border-radius:9px;padding:1px 7px;font-size:11px}#right-panel{width:268px;min-width:200px;background:var(--panel);border-left:1px solid var(--line);display:flex;flex-direction:column;overflow:auto}#right-panel{position:absolute;top:0;right:0;bottom:0;z-index:20;box-shadow:-12px 0 28px -14px #0f172a38}#view-toolbar,#viewcube-wrap{transition:transform .18s ease}#workspace:has(>#right-panel:not(.hidden)) #view-toolbar,#workspace:has(>#right-panel:not(.hidden)) #viewcube-wrap{transform:translate(-268px)}.rp-head{display:flex;align-items:center;justify-content:space-between;padding:9px 12px;border-bottom:1px solid var(--line);font-weight:600}.rp-head .fd-x{color:var(--txt-dim);font-size:16px}.rp-body{padding:12px;display:flex;flex-direction:column;gap:14px}.rp-group{display:flex;flex-direction:column;gap:8px}.rp-group h4{font-size:11px;color:var(--txt-faint);text-transform:uppercase;letter-spacing:.5px;font-weight:700}.rp-line{display:flex;align-items:center;justify-content:space-between;gap:8px}.rp-line span{font-size:12px;color:var(--txt-dim)}.swatches{display:flex;flex-wrap:wrap;gap:6px}.swatch{width:24px;height:24px;border-radius:5px;border:2px solid transparent;cursor:pointer}.swatch.sel{border-color:#fff;box-shadow:0 0 0 1px var(--accent)}.slider{width:130px;accent-color:var(--accent)}#tabbar{display:flex;align-items:stretch;background:var(--panel-2);border-top:1px solid var(--line);padding-left:6px}.tabs{display:flex;align-items:stretch;gap:0}.tab{display:flex;align-items:center;gap:7px;padding:0 14px;font-size:12.5px;color:var(--txt-dim);border-right:1px solid var(--line);cursor:pointer;position:relative;max-width:190px}.tab:hover{background:var(--bg-3);color:var(--txt)}.tab.active{background:var(--bg);color:var(--txt);box-shadow:inset 0 2px 0 var(--accent)}.tab 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var(--mono);color:var(--txt)}.qs-win{line-height:1.55;color:var(--txt)}.cmdk-back{position:fixed;top:0;right:0;bottom:0;left:0;z-index:7500;background:#0f172a2e;display:flex;justify-content:center;align-items:flex-start;padding:12vh 16px 16px}.cmdk{width:min(620px,100%);border-radius:14px;background:var(--panel);border:1px solid var(--line-soft);box-shadow:var(--shadow-lg);overflow:hidden;display:flex;flex-direction:column}.cmdk-in{border:none;outline:none;padding:15px 18px;font-size:15px;font-family:inherit;background:transparent;color:var(--txt);border-bottom:1px solid var(--line-soft)}.cmdk-list{max-height:min(420px,56vh);overflow-y:auto;padding:6px}.cmdk-sec{padding:8px 10px 4px;font-size:10.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--txt-faint)}.cmdk-row{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;cursor:pointer;color:var(--txt);font-size:13px}.cmdk-row.on{background:var(--accent-soft)}.cmdk-row.genie 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#workspace{margin-right:var(--genie-dock-w)}body.genie-docked #ai-panel{position:fixed;top:calc(var(--topbar-h) + var(--toolbar-h));bottom:var(--tabbar-h);right:0;left:auto;width:var(--genie-dock-w);max-height:none;border-radius:0;border-width:0 0 0 1px;animation:none;box-shadow:-10px 0 24px -18px #14203a59}body.genie-docked #ai-fab{right:calc(var(--genie-dock-w) + 20px)}}@media (max-width:899px){#ai-panel{right:12px;width:min(352px,calc(100vw - 24px));max-height:min(520px,calc(100vh - 140px))}}.dd-item.disabled{opacity:.45;cursor:not-allowed}.dropdown .dd-item.disabled:hover{background:none;color:var(--txt);padding-left:10px}.tool.disabled{opacity:.4;cursor:not-allowed}.tool.disabled:hover,.tool.disabled:active{background:none;transform:none}.tool.disabled:hover .ico svg{stroke:currentColor;transform:none}.cmdk-row.disabled{opacity:.5;cursor:not-allowed}.modal-foot .btn-primary:disabled{opacity:.45;cursor:not-allowed}#right-panel{width:var(--rp-w,268px)}#workspace:has(>#right-panel:not(.hidden)) #view-toolbar,#workspace:has(>#right-panel:not(.hidden)) #viewcube-wrap{transform:translate(calc(-1 * var(--rp-shift,268px)))}#feature-dialog{z-index:21;display:flex;flex-direction:column;max-height:calc(100% - 66px)}#feature-dialog>.fd-head,#feature-dialog>.fd-foot{flex:0 0 auto}#feature-dialog>.fd-body,#feature-dialog>.fd-err{flex:0 1 auto;min-height:0}#feature-dialog>.fd-err{overflow:auto}#dialog-layer:has(.fst){background:#0f172a2e;justify-content:flex-start;align-items:flex-start;padding:calc(var(--topbar-h) + var(--toolbar-h) + 10px) 14px 14px}#dialog-layer:has(.fst) .modal{width:min(540px,calc(100vw - 28px))}.fst{display:flex;flex-direction:column;gap:10px;font-size:12.5px}.fst input[type=checkbox]{accent-color:var(--accent)}.fst-intro{color:var(--txt-dim);line-height:1.5}.fst-kind{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px}.fst-kind select{width:auto;flex:0 1 auto;max-width:100%}.fst-nut{display:flex;align-items:center;gap:6px;color:var(--txt);cursor:pointer}.fst-list{display:flex;flex-direction:column;gap:6px}.fst-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:6px 10px;padding:8px 10px;border-radius:9px;border:1px solid var(--line-soft);background:var(--bg)}.fst-row.on{border-color:var(--accent);background:var(--accent-soft)}.fst-row.off{opacity:.6}.fst-what{display:flex;align-items:flex-start;gap:8px;flex:1 1 220px;min-width:0;cursor:pointer}.fst-what input{margin-top:2px}.fst-n{flex:0 0 auto;min-width:20px;height:20px;padding:0 5px;border-radius:10px;background:var(--accent);color:#fff;font-weight:700;font-size:11px;display:flex;align-items:center;justify-content:center}.fst-row:not(.on) .fst-n{background:var(--txt-faint)}.fst-txt{display:flex;flex-direction:column;gap:2px;min-width:0}.fst-txt small{color:var(--txt-dim);font-size:11.5px}.fst-txt .fst-note{color:#9a6700;font-weight:600}:root[data-theme=dark] .fst-txt .fst-note{color:#f5b955}.fst-pick{display:flex;align-items:center;gap:5px;color:var(--txt-dim)}.fst-pick select{width:auto;padding:4px 6px;font-size:12px}.fst-foot{color:var(--txt-faint);font-size:11.5px;line-height:1.5}html:not([data-share=on]) #btn-share{display:none!important}html:not([data-collab=on]) #collab-presence,html:not([data-collab=on]) #cloud-presence{display:none!important}:root{--topbar-h:52px;--tabbar-h:36px;--gutter:12px;--island-r:14px;--font-ui:"Geist Variable","Segoe UI",system-ui,-apple-system,sans-serif;--mono:"Geist Mono Variable",ui-monospace,"Cascadia Mono",Consolas,monospace;--brand-navy:#0B1430;--accent:#2F5BEA;--accent-2:#2449C8;--accent-soft:rgba(47,91,234,.1);--accent-grad:linear-gradient(120deg,#6E8EFF,#2F5BEA 55%,#1D3A8F);--accent-fill:#2F5BEA;--accent-fill-2:#2449C8;--accent-ink:#1F3FAE;--genie:#FFB547;--genie-2:#FFC46B;--genie-on:#0B1430;--genie-icon:#E07B00;--genie-ink:#A24E07;--genie-soft:rgba(255,181,71,.18);--genie-line:rgba(224,123,0,.42);--warn:#C2410C;--stage:#e8ecf1;--stage-dot:rgba(30,40,60,.08);--header:#f7f9fb;--island:#ffffff;--island-line:rgba(20,30,45,.11);--island-shadow:0 8px 24px -14px rgba(20,32,58,.35);--bg-inset:#f1f4f7;--bg-raised:#ffffff;--muted:var(--txt-dim);--hover:var(--bg-3);--new:var(--accent)}:root[data-theme=dark]{--bg:#0E1219;--bg-2:#12161E;--bg-3:#1B2130;--panel:#12161E;--panel-2:#161B25;--line:#272E3B;--line-soft:#1F2632;--txt:#E8ECF3;--txt-dim:#A3ACBD;--txt-faint:#8A93A5;--accent:#6E8EFF;--accent-2:#8DA6FF;--accent-soft:rgba(110,142,255,.15);--accent-fill:#2F5BEA;--accent-fill-2:#3D68F0;--accent-ink:#C9D5FF;--genie-icon:#FFB547;--genie-ink:#FFC46B;--genie-soft:rgba(255,181,71,.14);--genie-line:rgba(255,181,71,.42);--good:#43D39E;--warn:#FF8F4D;--bad:#FF6B6B;--sketch:#3B9DFF;--glass:rgba(18,22,30,.94);--shadow:0 10px 30px rgba(0,0,0,.38);--shadow-lg:0 18px 44px -12px rgba(0,0,0,.62),0 4px 12px -6px rgba(0,0,0,.45);--stage:#0E1219;--stage-dot:rgba(255,255,255,.05);--header:#0B0F15;--island:rgba(18,22,30,.95);--island-line:rgba(255,255,255,.07);--island-shadow:0 10px 30px rgba(0,0,0,.35);--bg-inset:#0B0F15;--bg-raised:#1B2130;--muted:#A3ACBD;--hover:#1B2130;--new:#6E8EFF}body{font-family:var(--font-ui)}.th-dark{display:none}:root[data-theme=dark] .th-light{display:none}:root[data-theme=dark] .th-dark{display:inline-block}::selection{background:color-mix(in srgb,var(--accent) 35%,transparent)}#app{grid-template-rows:var(--topbar-h) minmax(0,1fr) var(--tabbar-h);background-color:var(--stage);background-image:radial-gradient(var(--stage-dot) 1px,transparent 1px);background-size:28px 28px}#topbar{grid-row:1}#workspace{grid-row:2;background:transparent;padding:var(--gutter);gap:var(--gutter)}#tabbar{grid-row:3}#viewport-container,:root[data-theme=dark] #viewport-container{background:transparent}#topbar{background:var(--header);border-bottom:1px solid var(--island-line);padding:0 10px 0 12px;gap:14px}.topbar-left{gap:10px}.logo-btn{padding:5px 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14px;border-bottom:0;font-size:10.5px;font-weight:600;letter-spacing:.07em;color:var(--txt-faint)}.mini-btn{width:28px;height:28px;border-radius:7px}#feature-tree{padding:2px 0 8px}.tree-row{margin:0 6px;padding:5px 8px;border-radius:8px;font-size:13px}.tree-row:hover{background:var(--bg-3)}.tree-row.selected{background:var(--accent-soft);box-shadow:none;color:var(--accent-ink)}.tree-section-label{padding:10px 14px 4px;font-size:10.5px;font-weight:600;letter-spacing:.07em;color:var(--txt-faint)}.tree-divider{background:var(--island-line);margin:6px 12px}.rollback-bar{margin:4px 14px;box-shadow:none;opacity:.85}#right-panel{top:var(--gutter);right:var(--gutter);bottom:var(--gutter);background:var(--island);border:1px solid var(--island-line);border-radius:var(--island-r);box-shadow:var(--island-shadow)}.rp-head{border-bottom:1px solid var(--island-line);padding:12px 14px}.rp-group h4{font-size:10.5px;letter-spacing:.07em;color:var(--txt-faint)}#toolbar,#sketch-toolbar{position:absolute;top:var(--gutter);left:50%;transform:translate(-50%);z-index:9;width:max-content;max-width:calc(100% - 264px);background:var(--island);border:1px solid var(--island-line);border-radius:var(--island-r);box-shadow:var(--island-shadow);padding:4px}#toolbar.tabbed{padding:0}#viewport-container:has(>#drawing-overlay:not(.hidden)) #toolbar{max-width:calc(100% - 2 * var(--gutter))}.tb-tabs{background:transparent;border-bottom:1px solid var(--island-line);padding:3px 6px;flex:0 0 auto;gap:6px}.tb-tab{border-radius:7px;padding:2px 10px;font-size:11.5px}.tb-tab.on{box-shadow:none;background:var(--accent-soft);color:var(--accent-ink)}.tb-search{border-radius:7px;padding:1px 9px 2px;background:var(--bg-inset);border-color:var(--island-line)}.tb-key{background:var(--bg-3);border-color:var(--island-line)}.tb-row{padding:2px 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var(--wl-line);border-radius:18px;background:var(--wl-card);color:var(--wl-ink);text-decoration:none;transition:border-color .2s,background .2s,transform .2s}.wl-post:hover{border-color:var(--wl-blue);background:var(--wl-paper-2);transform:translateY(-2px)}.wl-post img{width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;border-radius:11px;border:1px solid var(--wl-line-2);margin-bottom:6px}.wl-post-tags{font:600 11.5px/1.2 var(--wl-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--wl-blue)}.wl-post b{font-size:19px;line-height:1.28;font-weight:600;letter-spacing:-.015em}.wl-post-sum{font-size:14.5px;line-height:1.6;color:var(--wl-ink-2)}.wl-post time{margin-top:auto;padding-top:4px;font:12.5px/1.2 var(--wl-mono);color:var(--wl-ink-3)}.wl-posts-all{margin:22px 0 0;font-size:15px}.wl-posts-all a{color:var(--wl-blue);font-weight:600;text-decoration:none}.wl-posts-all a:hover{text-decoration:underline}.wl-split-faq{grid-template-columns:minmax(0,4fr) 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var(--wl-mono);letter-spacing:.08em;color:var(--wl-ink-3)}.wl-float{position:fixed;right:20px;bottom:20px;z-index:25;display:flex;align-items:center;gap:10px;padding:7px 8px 7px 14px;border-radius:999px;background:var(--wl-paper-2);border:1px solid var(--wl-line);box-shadow:var(--wl-shadow);font-size:13.5px;opacity:0;transform:translateY(16px);transition:opacity .4s,transform .4s;pointer-events:none}.wl-float[hidden]{display:none}.wl-float.is-on{opacity:1;transform:none;pointer-events:auto}.wl-float-x{width:28px;height:28px;border-radius:50%;border:0;background:none;color:var(--wl-ink-3);cursor:pointer;font-size:12px}.wl-float-x:hover{color:var(--wl-ink);background:var(--wl-line-2)}#home.auth-open>:not(.hm-auth){filter:blur(10px) brightness(.8);pointer-events:none;-webkit-user-select:none;user-select:none}:root[data-theme=dark] #home.auth-open>:not(.hm-auth){filter:blur(10px) brightness(.5)}#home.auth-open 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