:root{--titlebar-bg: #2b2b2b;--titlebar-fg: #e6e6e6;--titlebar-hover: #3d3d3d;--titlebar-close-hover: #c42b1c;--titlebar-close-fg: #ffffff;--brand: #6ea8fe;--focus-on-dark: #6ea8fe;--app-bg: #ececec;--ribbon-bg: #f5f5f5;--panel-bg: #ececec;--panel-header-bg: #dcdcdc;--card-bg: #ffffff;--card-missing-bg: #f4f4f4;--input-bg: #ffffff;--chip-bg: #f7f7f7;--border: #c8c8c8;--toggle-border: #9a9a9a;--text: #1f1f1f;--text-muted: #6b6b6b;--text-disabled: #9a9a9a;--icon-disabled: #a9b8cc;--accent: #1a5fb4;--link: #1a5fb4;--accent-fg: #ffffff;--accent-solid: #1a5fb4;--accent-solid-hover: #164f96;--selection: #cfe0f7;--accent-hover-bg: #e3edfa;--accent-hover-border: #b8cfee;--hover-bg: #e2e2e2;--tab-bg: #e6e6e6;--tab-hover-bg: #f0f0f0;--tab-active-bg: #ffffff;--tab-close-hover-bg: #d9d9d9;--view-bg: linear-gradient(#cfd8e3, #f2f2f2);--thumb-bg: linear-gradient(#cfd8e3, #f2f2f2);--error-bg: #fde7e9;--error-border: #d13438;--error-fg: #7a1519;--contextual-bg: #d8ecd6;--ok-fg: #1e7e34;--danger-fg: #c42b1c;--toast-bg: #333333;--toast-fg: #f2f2f2;--toast-border: #1f1f1f;--shadow-toast: 0 2px 8px rgba(0, 0, 0, .3);--shadow-box: 0 2px 10px rgba(0, 0, 0, .25);--shadow-menu: 0 6px 18px rgba(0, 0, 0, .28);--scrim: rgba(236, 236, 236, .7);--home-side-bg: #1e2a38;--home-side-fg: #e6edf5;--home-side-muted: #8fa3b8;--home-side-hover: #2c3d52;--cube-home-fg: #4a4a4a;--cube-home-hover-bg: rgba(255, 255, 255, .85);--cube-face-bg: var(--cube-ring);--cube-face-border: #4f555c;--cube-face-fg: var(--cube-compass-fg);--cube-face-hover-bg: #cfe0f7;--cube-face-hover-fg: #1a5fb4;--cube-shade: #1d2126;--cube-ring: #6f767e;--cube-compass-fg: #ffffff;--cube-compass-hover-fg: #cfe6ff;--level-line: #5b6674;--level-label-fg: #2a3139;--level-label-bg: #ffffff;--axis-x: #b4504f;--axis-y: #5f9a5f;--axis-z: #4a7cad;--axis-fg: #ffffff;--font: "Segoe UI", system-ui, sans-serif;--font-size: 12px;--titlebar-height: 32px;--radius: 2px;--disc-arquitectura: #b98a3e;--disc-electrico: #a8962f;--disc-fontaneria: #3f7aa8;--disc-hvac: #4a8f76;--disc-mobiliario: #9a6a48;--disc-other: #8c8c8c;--dex-stage: radial-gradient(120% 90% at 50% 38%, #ffffff 0%, #eef1f5 55%, #e1e6ec 100%);--dex-track: #e3e7ec;--dex-number: #9aa3ae}:root[data-theme=dark]{--titlebar-bg: #16191d;--titlebar-fg: #e6e6e6;--titlebar-hover: #2a2f36;--app-bg: #1f2329;--ribbon-bg: #2f343b;--panel-bg: #2b3037;--panel-header-bg: #353b43;--card-bg: #343a42;--card-missing-bg: #2a2f35;--input-bg: #23282e;--chip-bg: #353b43;--border: #4a5059;--toggle-border: #7a828c;--text: #e6e6e6;--text-muted: #a0a7b0;--text-disabled: #6b727b;--icon-disabled: #4f5b6b;--accent: #3d8bfd;--link: #6ea8fe;--accent-fg: #ffffff;--accent-solid: #1f6feb;--accent-solid-hover: #1a5fd0;--selection: #24476f;--accent-hover-bg: #2a3b52;--accent-hover-border: #3f5f8a;--hover-bg: #3a4048;--tab-bg: #2b3037;--tab-hover-bg: #3a4048;--tab-active-bg: #444b55;--tab-close-hover-bg: #555d68;--view-bg: linear-gradient(#3a4250, #1e232a);--error-bg: #4a2327;--error-border: #f26b70;--error-fg: #ffb4b8;--contextual-bg: #33523b;--ok-fg: #5bd17a;--danger-fg: #ff7b72;--toast-bg: #3c424b;--toast-fg: #f2f2f2;--toast-border: #5a616b;--shadow-toast: 0 2px 8px rgba(0, 0, 0, .55);--shadow-box: 0 2px 10px rgba(0, 0, 0, .5);--shadow-menu: 0 6px 18px rgba(0, 0, 0, .55);--scrim: rgba(20, 23, 27, .7);--home-side-bg: #151a21;--home-side-fg: #e6edf5;--home-side-muted: #8fa3b8;--home-side-hover: #26303d;--cube-home-fg: #cfd5dc;--cube-home-hover-bg: rgba(58, 66, 80, .9);--cube-face-hover-bg: #2f5580;--cube-face-hover-fg: #ffffff;--level-line: #9aa7b6;--level-label-fg: #e3e8ee;--level-label-bg: #1f242a;--disc-arquitectura: #c9a061;--disc-electrico: #bfae52;--disc-fontaneria: #6c9cc4;--disc-hvac: #6eab93;--disc-mobiliario: #b48a6a;--disc-other: #8f8f8f;--dex-stage: radial-gradient(120% 90% at 50% 38%, #353b45 0%, #272c34 55%, #1f2329 100%);--dex-track: #353a42;--dex-number: #6f7884}*{box-sizing:border-box}html,body{margin:0;height:100%;overflow:hidden;background:var(--app-bg);color:var(--text);font:var(--font-size) / 1.4 var(--font);user-select:none;-webkit-user-select:none}input,textarea{user-select:text;-webkit-user-select:text}#app{display:flex;flex-direction:column;height:100vh}#home,#workspace,#collection{flex:1;min-height:0;position:relative}#home[hidden],#workspace[hidden],#collection[hidden]{display:none}#titlebar{flex:none;display:flex;align-items:center;height:var(--titlebar-height);background:var(--titlebar-bg);color:var(--titlebar-fg)}.tb-brand{display:flex;align-items:center;padding:0 8px 0 10px;color:var(--brand);pointer-events:none}.tb-qat{display:flex;align-items:center;gap:1px;padding-right:8px}.tb-btn,.tb-win{display:inline-flex;align-items:center;justify-content:center;border:0;background:transparent;color:inherit;cursor:default;padding:0}.tb-btn{width:26px;height:24px;border-radius:var(--radius)}.tb-btn:hover:not(:disabled){background:var(--titlebar-hover)}.tb-btn:disabled{opacity:.4}.tb-title{flex:1;min-width:0;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:0 12px}.tb-window{display:flex;height:100%}.tb-win{width:46px;height:100%}.tb-win:hover{background:var(--titlebar-hover)}.tb-win.tb-close:hover{background:var(--titlebar-close-hover);color:var(--titlebar-close-fg)}.tb-btn:focus-visible,.tb-win:focus-visible{outline:1px solid var(--focus-on-dark);outline-offset:-2px}.theme-menu{position:fixed;z-index:960;display:flex;flex-direction:column;min-width:140px;padding:4px 0;background:var(--ribbon-bg);color:var(--text);border:1px solid var(--border);box-shadow:var(--shadow-menu)}.theme-menu[hidden]{display:none}.theme-radio{display:flex;align-items:center;gap:8px;padding:6px 14px;border:0;background:transparent;color:var(--text);font:inherit;text-align:left;cursor:default}.theme-radio:hover{background:var(--selection)}.theme-radio:focus-visible{outline:1px solid var(--accent);outline-offset:-2px}.theme-radio-mark{flex:none;width:10px;height:10px;border:1px solid var(--text-muted);border-radius:50%}.theme-radio[aria-checked=true] .theme-radio-mark{border-color:var(--accent);background:radial-gradient(circle,var(--accent) 0 40%,transparent 45%)}#toasts{position:fixed;right:16px;bottom:16px;z-index:1000;display:flex;flex-direction:column;gap:6px;align-items:flex-end;pointer-events:none}.toast{max-width:420px;padding:8px 12px;background:var(--toast-bg);color:var(--toast-fg);border:1px solid var(--toast-border);border-radius:var(--radius);box-shadow:var(--shadow-toast)}.toast-error{background:var(--error-bg);color:var(--error-fg);border-color:var(--error-border)}#app{position:relative}.loading-overlay{position:absolute;inset:var(--titlebar-height) 0 0 0;z-index:950;display:flex;align-items:center;justify-content:center;background:var(--scrim);cursor:wait}.loading-box{display:flex;align-items:center;gap:10px;padding:12px 18px;background:var(--ribbon-bg);color:var(--text);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-box)}.loading-spinner{width:18px;height:18px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:loading-spin .8s linear infinite}@keyframes loading-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.loading-spinner{animation-duration:2.4s}}.modal-scrim{position:fixed;top:0;right:0;bottom:0;left:0;z-index:990;display:flex;align-items:center;justify-content:center;background:var(--scrim)}.modal{min-width:320px;max-width:440px;background:var(--ribbon-bg);color:var(--text);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-menu)}.modal-title{padding:8px 14px;background:var(--panel-header-bg);border-bottom:1px solid var(--border);font-weight:600}.modal-text{margin:0;padding:18px 14px;overflow-wrap:anywhere}.modal-buttons{display:flex;justify-content:flex-end;gap:8px;padding:0 14px 14px}.modal-btn{min-width:84px;padding:5px 12px;border:1px solid var(--border);border-radius:var(--radius);background:var(--card-bg);color:var(--text);font:inherit;cursor:default}.modal-btn:hover{background:var(--hover-bg)}.modal-btn-primary{background:var(--accent-solid);border-color:var(--accent-solid);color:var(--accent-fg)}.modal-btn-primary:hover{background:var(--accent-solid-hover)}.modal-btn:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.modal-btn:disabled{opacity:.5}.modal.help-dialog{width:min(600px,calc(100vw - 32px));max-width:none;max-height:calc(100vh - 48px);display:flex;flex-direction:column}.help-head{display:flex;align-items:center;justify-content:space-between}.help-close{border:0;background:none;color:var(--text);font:inherit;padding:0 4px;border-radius:var(--radius)}.help-close:hover{background:var(--hover-bg)}.help-tabs{display:flex;gap:4px;padding:8px 14px 0;border-bottom:1px solid var(--border)}.help-tab{border:0;border-bottom:2px solid transparent;background:none;color:var(--text-muted);font:inherit;padding:4px 8px 6px}.help-tab[aria-selected=true]{color:var(--text);border-bottom-color:var(--accent)}.help-tab:hover{color:var(--text)}.help-close:focus-visible,.help-tab:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}.help-body{padding:12px 14px;overflow-y:auto}.help-figure svg{display:block;width:100%;height:auto;max-height:220px;fill:currentColor;font:inherit;font-size:12px}.help-step-title{margin:10px 0 4px;font-size:1.1em}.help-text{margin:0 0 8px;line-height:1.45}.help-legend{display:grid;grid-template-columns:max-content 1fr;gap:4px 12px;margin:4px 0 0}.help-legend dt{font-weight:600}.help-legend dd{margin:0}.help-buttons{padding-top:10px;border-top:1px solid var(--border)}.demo-banner{position:fixed;right:12px;bottom:12px;z-index:50;padding:4px 10px;border:1px solid var(--border);border-radius:12px;background:var(--card-bg);color:var(--text-muted);font-size:12px;pointer-events:none}#home.home{display:flex;background:var(--app-bg)}#home.home[hidden]{display:none}.home-side{flex:none;width:240px;padding:24px 16px;background:var(--home-side-bg);color:var(--home-side-fg);display:flex;flex-direction:column;gap:4px}.home-brand{margin:0 0 24px;font-size:18px;font-weight:600}.home-side .home-heading{color:var(--home-side-muted)}.home-heading{margin:0 0 8px;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted)}.home-action{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;border:0;border-radius:var(--radius);background:transparent;color:inherit;font:inherit;font-size:13px;text-align:left;cursor:default}.home-action:hover:not(:disabled){background:var(--home-side-hover)}.home-action:focus-visible{outline:1px solid var(--focus-on-dark);outline-offset:-1px}.home-action:disabled{opacity:.45}.home-main{flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden}.home-recents,.home-examples{flex:1 1 0;min-height:0;overflow-y:auto;padding:24px 32px}.home-examples{border-top:1px solid var(--border)}.home-empty{margin:8px 0;color:var(--text-muted)}.recent-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}.recent-card{display:flex;flex-direction:column;gap:4px;padding:8px;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);cursor:default}.recent-card:not(.missing):hover{border-color:var(--accent);background:var(--selection)}.recent-card:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.recent-card .thumb{aspect-ratio:4 / 3;background:var(--thumb-bg);border:1px solid var(--border);overflow:hidden}.recent-card .thumb img{display:block;width:100%;height:100%;object-fit:cover}.thumb-empty{display:flex;align-items:center;justify-content:center;width:100%;height:100%;color:var(--text-muted)}.recent-name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.recent-date{color:var(--text-muted)}.recent-card.missing{opacity:.75;background:var(--card-missing-bg)}.recent-card.missing .thumb{filter:grayscale(1);opacity:.6}.recent-missing{color:var(--error-fg);font-weight:600}.recent-remove{align-self:flex-start;padding:2px 10px;border:1px solid var(--border);border-radius:var(--radius);background:var(--ribbon-bg);color:var(--text);font:inherit;cursor:default}.recent-remove:hover{border-color:var(--error-border)}.ribbon{flex:none;background:var(--ribbon-bg);border-bottom:1px solid var(--border)}.ribbon-tabbar{display:flex;align-items:flex-end;height:26px;padding-left:0;background:var(--panel-bg);border-bottom:1px solid var(--border)}.ribbon-tabs{display:flex;align-items:flex-end;height:100%;padding-left:4px}.ribbon-tab{height:24px;margin-bottom:-1px;padding:0 14px;border:1px solid transparent;border-bottom:0;background:transparent;color:var(--text);font:inherit;cursor:default}.ribbon-tab:hover:not(.active){background:var(--hover-bg)}.ribbon-tab.active{background:var(--ribbon-bg);border-color:var(--border);height:26px;font-weight:600}.ribbon-tab.contextual{background:var(--contextual-bg);border-color:var(--border)}.ribbon-btn[data-action=sketchFinish] .icon{color:var(--ok-fg)}.ribbon-btn[data-action=sketchCancel] .icon{color:var(--danger-fg)}.ribbon-tab:focus-visible,.ribbon-btn:focus-visible,.file-tab:focus-visible,.file-menu-item:focus-visible,.file-menu-recent:focus-visible{outline:1px solid var(--accent);outline-offset:-2px}.ribbon-body{height:94px}.ribbon-panel{display:flex;height:100%;padding:3px 4px 0}.ribbon-panel[hidden]{display:none}.ribbon-group{display:flex;flex-direction:column;padding:0 4px;border-right:1px solid var(--border)}.ribbon-group-buttons{flex:1;display:flex;align-items:flex-start;gap:1px;min-height:0}.ribbon-group-label{flex:none;padding:2px 6px 3px;text-align:center;color:var(--text-muted);white-space:nowrap}.ribbon-btn{display:flex;flex-direction:column;align-items:center;justify-content:flex-start;gap:4px;min-width:52px;max-width:76px;height:100%;padding:5px 5px 2px;border:1px solid transparent;border-radius:var(--radius);background:transparent;color:var(--text);font:inherit;text-align:center;line-height:1.15;cursor:default}.ribbon-btn .icon{flex:none;color:var(--accent)}.ribbon-btn:hover:not(:disabled){background:var(--accent-hover-bg);border-color:var(--accent-hover-border)}.ribbon-btn:active:not(:disabled),.ribbon-btn.pressed{background:var(--selection);border-color:var(--accent)}.ribbon-btn:disabled{color:var(--text-disabled)}.ribbon-btn:disabled .icon{color:var(--icon-disabled)}.file-tab{align-self:stretch;min-width:72px;padding:0 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.icon{color:var(--icon-disabled)}.file-menu-theme{display:flex;flex-direction:column;margin-top:6px;padding-top:6px;border-top:1px solid var(--border)}.file-menu-subheading{padding:2px 14px 4px;color:var(--text-muted);font-weight:600}.file-menu-theme .theme-radio{padding:5px 14px 5px 18px}.file-menu-exit{border-top:1px solid var(--border)}.file-menu-recents{flex:1;min-width:0;padding:10px 0}.file-menu-heading{padding:0 16px 8px;font-size:14px;font-weight:600}.file-menu-recent-list{display:flex;flex-direction:column;max-height:340px;overflow-y:auto}.file-menu-recent{padding:7px 16px;border:0;background:transparent;color:var(--text);font:inherit;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:default}.file-menu-recent:hover{background:var(--selection)}.file-menu-empty{padding:8px 16px;color:var(--text-muted)}.ribbon-menu{position:fixed;z-index:900;display:flex;flex-direction:column;min-width:120px;padding:4px 0;background:var(--ribbon-bg);border:1px solid var(--border);box-shadow:var(--shadow-menu)}.ribbon-tab[hidden]{display:none}.props{display:flex;flex-direction:column;height:100%;overflow-x:hidden;overflow-y:auto;background:var(--panel-bg);color:var(--text);font:var(--font-size) / 1.3 var(--font);border-left:1px solid var(--border)}.prop-empty{padding:16px 12px;color:var(--text-muted);text-align:center}.prop-type{display:flex;align-items:center;gap:8px;margin:6px;padding:4px 8px;min-height:38px;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius)}.prop-type-icon{display:flex;flex:none;color:var(--text-muted)}.prop-type-text{min-width:0}.prop-type-family{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.prop-type-name{color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.prop-selection{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:0 6px 6px}.prop-edit-type{padding:2px 10px;border:1px solid var(--border);border-radius:var(--radius);background:var(--ribbon-bg);color:var(--text);font:inherit}.prop-edit-type:disabled{color:var(--text-muted);opacity:.6}.prop-group{border-top:1px solid var(--border)}.prop-group>summary{padding:2px 6px;background:var(--panel-header-bg);font-weight:600;cursor:default;-webkit-user-select:none;user-select:none}.prop-table{width:100%;border-collapse:collapse;table-layout:fixed;background:var(--card-bg)}.prop-table td{height:20px;padding:0 6px;border:1px solid var(--border);border-top:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.prop-table td:first-child{width:45%;border-left:0;background:var(--ribbon-bg)}.prop-table td:last-child{border-right:0}.prop-input,.prop-select{box-sizing:border-box;display:block;width:100%;height:19px;margin:0;padding:0 4px;border:1px solid transparent;background:transparent;color:var(--text);font:inherit}.prop-input:hover,.prop-select:hover{border-color:var(--border)}.prop-input:focus,.prop-select:focus{outline:none;border-color:var(--accent);background:var(--input-bg)}.prop-input:disabled,.prop-select:disabled{opacity:.6}.prop-table td:has(>.prop-input),.prop-table td:has(>.prop-select){padding:0}.prop-field{display:flex;align-items:center}.prop-field>.prop-input{flex:1;min-width:0}.prop-check{margin:0;vertical-align:middle;accent-color:var(--accent)}.prop-reset{flex:none;height:19px;margin:0;padding:0 5px;border:1px solid transparent;background:transparent;color:var(--text-muted);font:inherit;cursor:pointer}.prop-reset:hover{border-color:var(--border);color:var(--text)}.prop-reset:disabled{opacity:.6}.prop-table td:has(>.prop-field){padding:0}.prop-field>.prop-check{margin:0 auto 0 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