:root{--bg-main: #0f1013;--bg-canvas: #000000;--bg-glass: rgba(22, 25, 31, .82);--bg-glass-hover: rgba(30, 34, 43, .9);--border-glass: rgba(255, 255, 255, .09);--border-glass-focus: rgba(0, 240, 255, .4);--accent-cyan: #00f0ff;--accent-cyan-glow: rgba(0, 240, 255, .35);--accent-green: #39ff14;--accent-blue: #007aff;--accent-purple: #bd00ff;--accent-yellow: #ffd600;--text-primary: #f3f4f6;--text-muted: #9ca3af;--text-dark: #1f2937;--danger: #ff3b30;--danger-glow: rgba(255, 59, 48, .3);--success: #34c759;--shadow-main: 0 10px 40px rgba(0, 0, 0, .45);--shadow-button: 0 4px 12px rgba(0, 0, 0, .25);--radius-lg: 16px;--radius-md: 10px;--radius-sm: 6px;--transition-fast: .15s ease;--transition-smooth: .3s cubic-bezier(.4, 0, .2, 1)}body.light-theme{--bg-main: #f3f4f6;--bg-canvas: #faf8f5;--bg-glass: rgba(255, 255, 255, .82);--bg-glass-hover: rgba(255, 255, 255, .94);--border-glass: rgba(0, 0, 0, .08);--border-glass-focus: rgba(0, 122, 255, .45);--text-primary: #111827;--text-muted: #374151;--text-dark: #f9fafb;--accent-cyan: #007aff;--accent-cyan-glow: rgba(0, 122, 255, .25);--shadow-main: 0 10px 40px rgba(0, 0, 0, .07);--shadow-button: 0 4px 12px rgba(0, 0, 0, .03)}body.light-theme .toolbar-top-bar{border-bottom:1px solid rgba(0,0,0,.08)}body.light-theme .toolbar-ribbon-group{border-right:1px solid rgba(0,0,0,.08)}body.light-theme .layers-footer,body.light-theme .panel-header{border-top-color:#00000014;border-bottom-color:#00000014}body.light-theme .layer-opacity-row{border-top-color:#0000000d}body.light-theme .divider{background:#00000014}body.light-theme .prop-input,body.light-theme .menu-search-container,body.light-theme .grid-size-box,body.light-theme .unit-toggle-group{background:#00000008!important;border:1px solid rgba(0,0,0,.08)!important;color:#111827!important}body.light-theme #cad-context-menu{background:#fffffff2!important;border:1px solid rgba(0,0,0,.08)!important;box-shadow:0 16px 48px #0000001f!important}body.light-theme .layer-card{background:#00000005;border:1px solid rgba(0,0,0,.03)}body.light-theme .layer-card.active{border-color:#007aff4d!important;background:#007aff05!important}body.light-theme .layer-action-btn.eye-btn.active-eye{color:#15803d!important}body.light-theme .stamp-item{background:#00000005;border:1px solid rgba(0,0,0,.04)}body.light-theme .stamp-item.active{border-color:#007aff;background:#007aff0a}body.light-theme .measurements-box{background:#ffffffd9!important;border:1px solid rgba(0,122,255,.3)!important;box-shadow:0 0 10px #007aff0a!important}body.light-theme .measurements-box:focus-within{border-color:#007aff!important;box-shadow:0 0 15px #007aff26!important}body.light-theme .floating-hud{background:#fffffff2!important;border:1px solid rgba(0,122,255,.3)!important;box-shadow:0 4px 20px #0000001a!important}body.light-theme .hud-title{border-bottom:1px solid rgba(0,0,0,.06)}body.light-theme .selection-hud{background:#fcfdfe73!important;border:1px solid rgba(0,0,0,.09)!important;box-shadow:0 2px 8px #0000001a,0 1px #fff9 inset!important}body.light-theme .selection-hud .hud-chip-btn{color:#0009}body.light-theme .selection-hud .hud-separator{background:#00000012}body.light-theme .modal{background:#fff6}body.light-theme .modal-content{border-color:#00000014}body.light-theme .modal-content h3{border-bottom-color:#00000014}body.light-theme kbd{background:#00000008!important;border:1px solid rgba(0,0,0,.12)!important;box-shadow:0 2px #00000014!important;color:#111827!important}body.light-theme [title]:hover:after{background:#fffffff2;color:#111827;border:1px solid rgba(0,0,0,.08);box-shadow:0 4px 12px #00000014}body.light-theme .layers-list::-webkit-scrollbar-thumb,body.light-theme .properties-content::-webkit-scrollbar-thumb,body.light-theme .menu-sections::-webkit-scrollbar-thumb{background:#00000026!important}body.light-theme .toolbar-menu .menu-item:hover,body.light-theme .ribbon-btn-large:hover,body.light-theme .ribbon-btn-small:hover,body.light-theme .undo-redo button:hover:not(:disabled),body.light-theme .secondary-btn:hover,body.light-theme .layer-card:hover,body.light-theme .layer-icon-btn:hover,body.light-theme .stamp-item:hover,body.light-theme .hud-btn:hover,body.light-theme .menu-item:hover,body.light-theme .menu-item.selected,body.light-theme .action-btn:hover{background:#0000000a!important;border-color:#0000000f!important;color:#111827!important}body.light-theme .unit-btn.active{background:#0000000f!important;color:#007aff!important}body.light-theme .secondary-btn{background:#00000005;border-color:#0000000f}body.light-theme .action-btn{background:#00000008;border-color:#0000000a}body.light-theme .active-color-swatch-wrapper{background:#00000005;border-color:#00000014}body.light-theme .color-swatch{border-color:#0000001a}body.light-theme .wall-hero-btn{background:#00000005}body.light-theme .wall-hero-btn:hover{background:#007aff0d;border-color:#007aff40}body.light-theme #btn-help-trigger{border-color:#00000014}body.light-theme #btn-help-trigger:hover{color:#007aff!important;border-color:#007aff!important;box-shadow:0 0 10px #007aff33!important}body.light-theme .switch-slider{background-color:#0000000d;border-color:#0000000a}body.light-theme .switch-container input:checked+.switch-slider{background-color:#007aff0f!important;border-color:#007aff33!important}body.light-theme .switch-container input:checked+.switch-slider:before{background-color:#fff!important;box-shadow:0 1px 2px #007aff26!important}*{box-sizing:border-box;margin:0;padding:0;-webkit-user-select:none;user-select:none;-webkit-user-drag:none}body,html{width:100%;min-height:100%;background-color:#090c12;font-family:Outfit,Inter,sans-serif;color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body.app-mode,html.app-mode{height:100vh;overflow:hidden}body.landing-mode,html.landing-mode{height:auto;overflow-x:hidden;overflow-y:auto}#app-container{position:relative;width:100vw;height:100vh;overflow:hidden}#cad-canvas{position:absolute;top:0;left:0;width:100%;height:100%;background-color:var(--bg-canvas);display:block;z-index:1;image-rendering:-moz-crisp-edges;image-rendering:-webkit-crisp-edges;image-rendering:pixelated;image-rendering:crisp-edges}.glass-panel{background:var(--bg-glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-glass);box-shadow:var(--shadow-main);border-radius:var(--radius-lg);z-index:10;transition:border var(--transition-fast),background var(--transition-fast)}.glass-panel:hover{background:var(--bg-glass-hover);border-color:#ffffff21}.divider{width:1px;height:32px;background:#ffffff1a;margin:0 12px}#top-toolbar{position:absolute;top:20px;left:50%;transform:translate(-50%);height:auto;padding:10px 18px;display:flex!important;flex-direction:column;width:auto;max-width:95vw;gap:10px;z-index:100!important;pointer-events:auto!important}.logo{font-weight:700;font-size:1.2rem;letter-spacing:-.5px;color:var(--text-primary);white-space:nowrap}.logo-accent{color:var(--accent-cyan);text-shadow:0 0 15px var(--accent-cyan-glow)}.logo-version{font-size:.75rem;font-weight:400;background:#ffffff14;padding:2px 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.menu-item:hover{color:#111827;background:#0000000d}.classic-menu-divider{width:1px;height:14px;background:#ffffff1f;margin:0 4px}body.light-theme .classic-menu-divider{background:#0000001a!important}.classic-quick-icons{display:flex;align-items:center;gap:4px}.menu-icon-btn{background:transparent;border:none;width:24px;height:24px;border-radius:var(--radius-sm);color:var(--text-muted);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast);padding:0}.menu-icon-btn:hover{color:var(--text-primary);background:#ffffff14}body.light-theme .menu-icon-btn{color:#4b5563}body.light-theme .menu-icon-btn:hover{background:#0000000d!important;color:#111827!important}.action-btn-compact{background:#ffffff0a;border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-sm);color:var(--text-primary);padding:0 8px;height:24px;display:flex;align-items:center;gap:5px;font-weight:500;font-size:.7rem;cursor:pointer;transition:all 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.tool-card-label{color:#4b5563}body.light-theme .cad-tool-card:hover:not(.active){background:#00000008}body.light-theme .cad-tool-card:hover:not(.active) .tool-icon-wrapper{background:#0000000d;border-color:#00000014;color:#111827}body.light-theme .cad-tool-card.active{background:linear-gradient(135deg,#007aff,#00c6ff);box-shadow:0 4px 12px #007aff40}body.light-theme .cad-tool-card.active .tool-icon-wrapper{background:#fff3;border-color:#ffffff40;color:#fff}body.light-theme .cad-tool-card.active .tool-card-label{color:#fff}.ribbon-colors-container{display:flex;align-items:center;gap:12px;height:50px;padding:0 4px}.active-color-swatch-wrapper{width:32px;height:32px;border-radius:50%;background:#ffffff0a;border:1px solid rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-button)}#active-color-swatch-indicator{width:20px;height:20px;border-radius:50%;background:#00f0ff;border:1.5px solid white;box-shadow:0 2px 5px 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.panel-header-menu-btn:hover{background:#0000000a}.panel-title{font-size:1.05rem;font-weight:600;color:var(--text-primary);letter-spacing:-.2px}.panel-subtitle{font-size:.75rem;color:var(--text-muted);margin-bottom:16px}.layers-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:8px;padding-right:0!important;padding-bottom:60px!important;scrollbar-width:none!important;-ms-overflow-style:none!important}.layers-list::-webkit-scrollbar{display:none!important}.properties-content::-webkit-scrollbar{width:4px}.properties-content::-webkit-scrollbar-thumb{background:#ffffff1f;border-radius:var(--radius-sm)}.layers-scroll-arrow-btn{display:flex;align-items:center;justify-content:center;width:100%;height:24px;background:#2d2e304d!important;backdrop-filter:blur(12px)!important;-webkit-backdrop-filter:blur(12px)!important;border:1px solid rgba(255,255,255,.1)!important;border-radius:8px;color:#ffffffb8;cursor:pointer;margin-top:4px;transition:all .15s 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scale(.95);pointer-events:none;display:none!important}.hud-title{font-size:.62rem;font-weight:600;text-transform:uppercase;color:var(--accent-cyan);opacity:.85;letter-spacing:.5px;text-align:center;border-bottom:1px solid rgba(255,255,255,.05);padding-bottom:3px}.hud-options{display:flex;gap:4px;justify-content:center}.hud-btn{background:#ffffff0a;border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-sm);color:var(--text-muted);font-family:inherit;font-size:.7rem;font-weight:500;padding:4px 8px;cursor:pointer;transition:all var(--transition-fast);outline:none}.hud-btn:hover{color:var(--text-primary);background:#ffffff14;border-color:#ffffff26}.hud-btn:active{transform:scale(.96)}.hud-btn.active{background:var(--accent-cyan);color:var(--bg-main);border-color:var(--accent-cyan);font-weight:600}.selection-hud{position:absolute;display:none;flex-direction:column;background:#181a1e73;backdrop-filter:blur(10px) saturate(1.5);-webkit-backdrop-filter:blur(10px) 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rgba(255,69,58,.15);background:#ff453a0f;color:#ff453ab3}.hud-chip-btn.delete-btn svg{color:#ff453a99}.hud-chip-btn.delete-btn:hover{background:#ff453a26;border-color:#ff453a4d;color:#ff453a}.hud-chip-btn.delete-btn:hover svg{color:#ff453a}body.light-theme .hud-chip-btn{background:#00000005;border:1px solid rgba(0,0,0,.08);color:#0009}body.light-theme .hud-chip-btn svg{color:#00000080}body.light-theme .hud-chip-btn:hover{background:#0000000f;border-color:#00000026;color:#000000d9}body.light-theme .hud-chip-btn:hover svg{color:#000000d9}body.light-theme .hud-chip-btn.delete-btn{border:1px solid rgba(255,69,58,.2);background:#ff453a0a;color:#ff453ad9}body.light-theme .hud-chip-btn.delete-btn:hover{background:#ff453a1f;border-color:#ff453a59;color:#ff3b30}.hud-prop-value-text{color:#ffffffd1;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:11.5px;font-weight:500;text-align:right;margin-left:auto}body.light-theme 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rgba(255,255,255,.25)!important;box-shadow:0 4px 12px #00000026!important;border-radius:6px!important;padding:2px 6px!important;transition:background .15s ease,border-color .15s ease,box-shadow .15s ease!important}.floating-dim-box[data-type^=sel_] .floating-dim-input{color:#fff!important;background:transparent!important;text-shadow:none!important;font-size:13px!important;font-weight:600!important;cursor:text!important}.floating-dim-box[data-type^=sel_] .floating-dim-input:focus{caret-color:#fff!important;text-decoration:none!important;outline:none!important}.floating-dim-box[data-type^=sel_] .floating-dim-unit{color:var(--accent-cyan)!important;text-shadow:none!important;font-size:10px!important;font-weight:600!important;transition:color .15s ease!important}.floating-dim-box[data-type^=sel_]:focus-within{background:#14161ca6!important;border-color:var(--accent-cyan)!important;box-shadow:0 0 8px var(--accent-cyan-glow)!important}.floating-dim-box[data-type^=sel_] 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