:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;--view-topbar-height: 62px;--overlay-topbar-inset: .75rem;--open-model-filename-bar-height: 34px;--tool-dropdown-left: var(--overlay-topbar-inset);--overlay-view-rightbar-clearance: calc(58px + .9rem) ;--color-panel-sv-size: 96px;--color-panel-hue-width: 20px;--color-panel-padding-y: 1rem;--color-panel-height: calc( var(--color-panel-sv-size) + 2 * var(--color-panel-padding-y) + 2px );--left-toolbar-width: 52px;--left-toolbar-pad-y: .45rem;--left-toolbar-btn-size: 40px;--toolbar-icon-size: 28px;--toolbar-icon-size-views: 32px;--btn-bevel: 3px;--btn-radius: 10px;--accent-blue: #5288d4;--accent-blue-bright: #85b4f0;--accent-blue-mid: #4580cf;--accent-blue-deep: #3569b0;--accent-blue-ink: #1e3f78;--accent-blue-rgb: 82, 136, 212;--accent-blue-muted: rgba(var(--accent-blue-rgb), .22);--accent-blue-glow: rgba(var(--accent-blue-rgb), .35);--btn-primary-text: #f8fafc;--btn-primary-border: rgba(25, 55, 105, .45);--btn-primary-shadow-deep: rgba(15, 40, 85, .52);--btn-primary-gradient: linear-gradient( 165deg, var(--accent-blue-bright) 0%, var(--accent-blue-mid) 42%, var(--accent-blue-deep) 100% );--tool-panel-title-bg: linear-gradient( 180deg, var(--accent-blue-mid) 0%, var(--accent-blue-deep) 100% );--tool-panel-slider-value: var(--accent-blue-bright);--left-toolbar-item-label-gap: 2px;--left-toolbar-label-line: .75rem;--left-toolbar-inner-gap: .5rem;--left-panel-bottom-inset: .85rem;--view-rightbar-max-height: 500px;--view-rightbar-offset-y: -50px;--left-toolbar-block-height: calc( 2 * var(--left-toolbar-pad-y) + var(--left-toolbar-btn-size) + var(--left-toolbar-item-label-gap) + var(--left-toolbar-label-line) );--color-panel-slide-width: calc( var(--color-panel-sv-size) + var(--color-panel-hue-width) + .8rem + 1.8rem + 6px );--left-color-panels-inner-height: max( var(--left-toolbar-block-height), var(--color-panel-height) );color-scheme:light dark;color:#ffffffde;background-color:#111;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body,html,#root{width:100%;height:100%;margin:0;padding:0;overflow:hidden}.ui-overlay{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;display:flex;flex-direction:column;justify-content:space-between;padding:2rem;box-sizing:border-box}.header-panel{pointer-events:auto;background:#ffffff0d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:1rem 1.5rem;border-radius:12px;border:1px solid rgba(255,255,255,.1);align-self:flex-start;box-shadow:0 4px 6px #0000001a}.title{margin:0;font-size:1.25rem;font-weight:600;color:#fff}.subtitle{margin:0;font-size:.875rem;color:#a0a0a0}.controls-panel{pointer-events:auto;display:flex;gap:1rem;align-self:center;margin-bottom:2rem;background:#0006;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:1rem;border-radius:16px;border:1px solid rgba(255,255,255,.1)}.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;border-radius:var(--btn-radius);font-weight:600;font-size:.9rem;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,filter .12s ease,background .15s ease,border-color .12s ease;border:1px solid transparent;outline:none;box-sizing:border-box;box-shadow:0 var(--btn-bevel) 0 #00000061,0 6px 14px #00000038,inset 0 1px #ffffff47}.btn:focus-visible{outline:2px solid rgba(var(--accent-blue-rgb),.92);outline-offset:2px}.btn-primary{color:var(--btn-primary-text);background:var(--btn-primary-gradient);border-color:var(--btn-primary-border);box-shadow:0 var(--btn-bevel) 0 var(--btn-primary-shadow-deep),0 6px 14px #0000003d,inset 0 1px #ffffff52}.btn-primary:hover:not(:disabled){filter:brightness(1.07);transform:translateY(-1px);box-shadow:0 calc(var(--btn-bevel) + 1px) 0 var(--btn-primary-shadow-deep),0 8px 18px #00000047,inset 0 1px #ffffff6b}.btn-primary:active:not(:disabled){transform:translateY(2px);filter:brightness(.94);box-shadow:0 1px 0 var(--btn-primary-shadow-deep),inset 0 2px 5px #00000038}.btn-secondary{color:#f2f2f2;background:linear-gradient(165deg,#ffffff42,#6e70806b 45%,#242630eb);border-color:#ffffff29}.btn-secondary:hover:not(:disabled){filter:brightness(1.1);transform:translateY(-1px);box-shadow:0 calc(var(--btn-bevel) + 1px) 0 #00000052,0 8px 18px #00000042,inset 0 1px #ffffff38}.btn-secondary:active:not(:disabled){transform:translateY(2px);filter:brightness(.95);box-shadow:0 1px #00000073,inset 0 2px 5px #0003}.btn:disabled{opacity:.48;cursor:not-allowed;transform:none;filter:grayscale(.15);box-shadow:0 2px #00000038,inset 0 1px #ffffff14}.btn-sm{--btn-bevel: 2px;padding:.35rem .65rem;font-size:.75rem;border-radius:8px}.btn-outline-secondary{color:#e8e8e8;background:linear-gradient(165deg,#ffffff14,#00000047);border:1px solid rgba(255,255,255,.22);box-shadow:0 var(--btn-bevel) 0 #00000052,inset 0 1px #ffffff1f}.btn-outline-secondary:hover:not(:disabled){filter:brightness(1.12);border-color:#ffffff52;transform:translateY(-1px)}.btn-outline-secondary:active:not(:disabled){transform:translateY(1px);box-shadow:0 1px #00000059,inset 0 2px 4px #00000026}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.animate-spin{animation:spin 1s linear infinite}.input-field-small{display:flex;align-items:center;gap:.5rem;background:#ffffff0d;padding:.25rem .75rem;border-radius:8px;border:1px solid rgba(255,255,255,.1);pointer-events:auto}.label-small{font-size:.75rem;color:#a0a0a0}.input-number-clear{width:45px;background:transparent;border:none;color:#fff;font-size:.85rem;text-align:right;outline:none}.input-number-clear:focus{background:#ffffff1a;border-radius:4px}.tool-dropdown-panel{position:fixed;top:var(--overlay-topbar-inset);left:var(--tool-dropdown-left);right:auto;width:200px;height:auto;min-height:0;background:#0f0f14f2;padding:10px;border-radius:8px;border:1px solid rgba(255,255,255,.1);display:flex;flex-direction:column;gap:8px;box-sizing:border-box;box-shadow:0 4px 12px #00000080;z-index:20}.tool-dropdown-panel>.paint-tool__title,.tool-dropdown-panel>.text-tool__title,.tool-dropdown-panel>.cutting-tools__title,.tool-dropdown-panel>.load-model-panel__title{margin:-10px -10px 10px;padding:10px;box-sizing:border-box;font-size:12px;font-weight:600;color:var(--btn-primary-text);text-align:center;background:var(--tool-panel-title-bg);border-radius:7px 7px 0 0;border-bottom:1px solid rgba(0,0,0,.28);box-shadow:inset 0 1px #ffffff38}.tool-dropdown-panel>.export-panel__header{display:flex;align-items:center;justify-content:center;margin:-10px -10px 10px;padding:10px;box-sizing:border-box;background:var(--tool-panel-title-bg);border-radius:7px 7px 0 0;border-bottom:1px solid rgba(0,0,0,.28);box-shadow:inset 0 1px #ffffff38}.tool-dropdown-panel>.export-panel__header .export-panel__title{color:var(--btn-primary-text)}.tool-panel{position:absolute;top:5rem;right:0;background:#141414e6;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:1.25rem;border-radius:16px;border:1px solid rgba(255,255,255,.15);box-shadow:0 10px 30px #00000080;display:flex;flex-direction:column;gap:1rem;min-width:220px;pointer-events:auto;z-index:100;animation:slideInRight .3s cubic-bezier(.4,0,.2,1)}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}.tool-panel-title{font-size:.9rem;font-weight:600;color:#fff;margin-bottom:.25rem;display:flex;align-items:center;gap:.5rem}.toast-container{position:absolute;bottom:1rem;left:1rem;transform:none;z-index:1000;pointer-events:none}.toast{background:#282828f2;color:#fff;padding:.75rem 1.5rem;border-radius:50px;box-shadow:0 8px 16px #0000004d;font-size:.9rem;font-weight:500;border:1px solid rgba(255,255,255,.1);animation:toastFadeIn .3s ease-out;display:flex;align-items:center;gap:.75rem}@keyframes toastFadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.login-screen{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f0f12,#1a1a24,#0d0d10);z-index:9999}.login-card{background:#ffffff0d;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.12);border-radius:20px;padding:2.5rem;min-width:320px;box-shadow:0 25px 50px #0006}.login-title{margin:0 0 .5rem;font-size:1.5rem;font-weight:600;color:#fff;text-align:center}.login-subtitle{margin:0 0 1.75rem;font-size:.9rem;color:#a0a0a0;text-align:center}.login-form{display:flex;flex-direction:column;gap:1rem}.login-input{width:100%;padding:.875rem 1rem;font-size:1rem;color:#fff;background:#ffffff0f;border:1px solid rgba(255,255,255,.15);border-radius:10px;outline:none;box-sizing:border-box;transition:border-color .2s,background .2s}.login-input::placeholder{color:#6b6b6b}.login-input:focus{border-color:rgba(var(--accent-blue-rgb),.6);background:#ffffff14}.login-input:disabled{opacity:.6;cursor:not-allowed}.login-error{margin:0;font-size:.85rem;color:#ef4444;text-align:center}.login-btn{width:100%;justify-content:center;padding:.875rem 1.5rem;font-size:1rem}.debug-polygons-panel{position:absolute;top:1rem;right:1rem;z-index:20;pointer-events:auto;background:#0009;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:.5rem .75rem;border-radius:8px;font-size:.75rem;font-family:monospace;color:#90ee90;border:1px solid rgba(144,238,144,.3)}.debug-polygons-panel div{margin:.15rem 0}.debug-polygons-panel div:first-child{margin-top:0}.debug-polygons-panel div:last-child{margin-bottom:0}.contour-cut-tool{display:flex;flex-direction:column;align-items:center;position:fixed;top:calc(var(--overlay-topbar-inset) + var(--view-topbar-height) + 7.5rem);left:var(--overlay-topbar-inset);z-index:24;pointer-events:auto}.contour-cut-tool__icon{width:22px;height:22px}.contour-cut-tool__label{font-size:10px;margin-top:2px;color:var(--color-text-secondary, #aaa);white-space:nowrap}.contour-cut-tool--panel-only{position:fixed;top:calc(var(--overlay-topbar-inset) + var(--view-topbar-height) + 7.5rem);left:var(--overlay-topbar-inset);z-index:24;pointer-events:auto}.contour-cut-panel{min-width:210px}.contour-cut-panel.tool-dropdown-panel{top:calc(var(--overlay-topbar-inset) + var(--view-topbar-height) + 7.5rem);left:var(--tool-dropdown-left);right:auto;width:220px}.contour-cut-panel__title{font-size:13px;font-weight:600;color:var(--color-text, #eee);margin-bottom:10px}.contour-cut-panel__hint{font-size:11.5px;color:var(--color-text-secondary, #aaa);line-height:1.5;margin-bottom:6px}.contour-cut-panel__hint--sub{font-size:10.5px;color:var(--color-text-muted, #777);margin-bottom:12px}.contour-cut-panel__btn-row{display:flex;gap:7px;margin-bottom:7px}.contour-cut-panel__btn-row .btn{flex:1;font-size:12px;padding:5px 8px}.cutting-tools{display:flex;flex-direction:column;align-items:center;gap:4px;pointer-events:auto}.cutting-tools__label{font-size:10px;color:#e0e0e0;font-weight:500}.cutting-tools__icon{width:var(--toolbar-icon-size);height:var(--toolbar-icon-size);display:block;flex-shrink:0}.cutting-tools__title{font-size:12px;font-weight:600;color:#fff;margin-bottom:8px;text-align:center}.cutting-tools__content{display:flex;flex-direction:column;gap:8px}.cutting-tools__hint{margin:0 0 4px;font-size:11px;color:#a0a0a0;text-align:center;line-height:1.4}.cutting-tools__btn-row{display:flex;flex-direction:column;gap:4px}.cutting-tools__btn-sm{font-size:12px;justify-content:center;text-align:center}.text-tool{display:flex;flex-direction:column;align-items:center;gap:4px;pointer-events:auto}.text-tool__label{font-size:10px;color:#e0e0e0;font-weight:500}.text-tool__title{font-size:12px;font-weight:600;color:#fff;margin-bottom:8px;text-align:center}.text-tool__content{display:flex;flex-direction:column;gap:8px;flex:1}.text-tool__field{display:flex;flex-direction:column;gap:4px}.text-tool__input-row{display:flex;align-items:center;gap:6px}.text-tool__input-row .text-tool__input{flex:1;min-width:0}.text-tool__char-count{flex-shrink:0;font-size:10px;color:#a8a8b8;font-variant-numeric:tabular-nums}.text-tool__field-label{font-size:11px;color:#e0e0e0}.text-tool__input{width:100%;padding:6px;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;border-radius:4px;font-size:11px;box-sizing:border-box;transition:all .2s ease}@keyframes pulse-highlight{0%{box-shadow:0 0 8px 1px rgba(var(--accent-blue-rgb),.55);transform:scale(1.01)}50%{box-shadow:0 0 12px 3px rgba(var(--accent-blue-rgb),.75);transform:scale(1.02)}to{box-shadow:0 0 8px 1px rgba(var(--accent-blue-rgb),.55);transform:scale(1.01)}}@keyframes border-glow-input{0%{border-color:var(--accent-blue);background:var(--accent-blue-muted);box-shadow:0 0 4px rgba(var(--accent-blue-rgb),.35)}50%{border-color:#fff;background:rgba(var(--accent-blue-rgb),.42);box-shadow:0 0 12px #ffffff80}to{border-color:var(--accent-blue);background:var(--accent-blue-muted);box-shadow:0 0 4px rgba(var(--accent-blue-rgb),.35)}}.text-tool__input--highlight{animation:border-glow-input 2s infinite ease-in-out;border-width:2px;border-style:solid}.text-tool__btn--highlight{animation:pulse-highlight 2s infinite ease-in-out,border-glow-input 2s infinite ease-in-out;z-index:1;position:relative;border-width:2px!important;border-style:solid!important;border-color:#fff!important}.text-tool__place-wrapper{position:relative;width:100%}.text-tool__tip{position:absolute;left:calc(100% + 12px);top:50%;transform:translateY(-50%);background:var(--accent-blue-mid);color:#fff;padding:8px 12px;border-radius:6px;font-size:11px;width:160px;line-height:1.3;box-shadow:0 4px 12px #0000004d;pointer-events:none;z-index:100;animation:fadeInRight .3s ease-out}.text-tool__tip:before{content:"";position:absolute;right:100%;top:50%;margin-top:-6px;border-width:6px;border-style:solid;border-color:transparent var(--accent-blue-mid) transparent transparent}@keyframes fadeInRight{0%{opacity:0;transform:translateY(-50%) translate(-10px)}to{opacity:1;transform:translateY(-50%) translate(0)}}.text-tool__place-btn{width:100%;font-size:11px;display:flex;align-items:center;justify-content:center;text-align:center;padding:6px;transition:all .2s ease;box-sizing:border-box}.text-tool__btn-sm.btn-primary{color:var(--btn-primary-text);background:var(--btn-primary-gradient);border-color:var(--btn-primary-border);box-shadow:0 var(--btn-bevel) 0 var(--btn-primary-shadow-deep),0 6px 14px #00000038,inset 0 1px #ffffff52}.text-tool__btn-sm.btn-primary:hover:not(:disabled){filter:brightness(1.07)}.text-tool__btn-sm.btn-primary:active:not(:disabled){transform:translateY(2px);filter:brightness(.94);box-shadow:0 1px 0 var(--btn-primary-shadow-deep),inset 0 2px 5px #00000038}.text-tool__btn-sm.btn-primary:disabled{background:linear-gradient(165deg,rgba(var(--accent-blue-rgb),.35),rgba(var(--accent-blue-rgb),.2));border-color:rgba(var(--accent-blue-rgb),.15);opacity:.6;box-shadow:0 2px #00000026,inset 0 1px #ffffff14}.text-tool__mode-row{display:flex;align-items:center;gap:8px}.text-tool__mode-label{font-size:10px;color:#a0a0a0}.text-tool__mode-option{flex:1;font-size:10px;padding:4px;display:flex;align-items:center;justify-content:center;text-align:center}.text-tool__size-row{display:flex;gap:8px}.text-tool__size-field{display:flex;flex-direction:column;gap:4px;flex:1}.text-tool__size-label{font-size:10px;color:#a0a0a0}.text-tool__size-input{width:100%;padding:4px;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;border-radius:4px;font-size:11px;box-sizing:border-box}.text-tool__size-slider{width:100%;height:14px;margin:0;padding:0;cursor:pointer;accent-color:var(--accent-blue-mid)}.text-tool__btn-row{margin-top:auto;display:flex;flex-direction:column;gap:4px}.text-tool__btn-row-actions{display:flex;flex-direction:column;gap:6px}.text-tool__btn-row-actions .text-tool__btn--skip{margin-top:12px}.text-tool__btn-row-actions .text-tool__btn-sm{width:100%}.text-tool__btn-sm{font-size:12px;justify-content:center;text-align:center}.text-tool__letter{font-size:26px;font-weight:800;line-height:1;text-shadow:0 1px 0 rgba(255,255,255,.35)}.text-tool>.btn-primary .text-tool__letter{color:var(--btn-primary-text);text-shadow:0 1px 0 rgba(0,0,0,.35)}.text-tool>.btn-secondary .text-tool__letter{text-shadow:0 1px 0 rgba(0,0,0,.35)}.top-bar{position:absolute;top:var(--overlay-topbar-inset);left:var(--overlay-topbar-inset);right:auto;height:var(--view-topbar-height);box-sizing:border-box;background:#0f0f14d9;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);padding:.5rem .65rem;border-radius:16px;border:1px solid rgba(255,255,255,.08);box-shadow:0 8px 32px #0000004d;display:flex;align-items:center;gap:.75rem;pointer-events:auto;z-index:10}.top-bar--panels-only{width:0;height:0;min-height:0;padding:0;margin:0;border:none;background:transparent;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;overflow:visible;pointer-events:none}.top-bar--panels-only>*{pointer-events:auto}.top-bar__btn{width:40px;height:40px;padding:0;display:flex;align-items:center;justify-content:center;white-space:nowrap;pointer-events:auto}.paint-tool{display:flex;flex-direction:column;align-items:center;gap:4px;pointer-events:auto}.paint-tool__trigger-icon{width:var(--toolbar-icon-size);height:var(--toolbar-icon-size);display:block;flex-shrink:0}.paint-tool__label{font-size:10px;color:#e0e0e0;font-weight:500}.paint-tool__title{font-size:12px;font-weight:600;color:#fff;margin-bottom:4px;text-align:center}.paint-tool__reset-row{margin-bottom:8px}.paint-tool__reset-btn{width:100%;font-size:11px;justify-content:center}.paint-tool__mode{font-size:10px;font-weight:600;text-align:center;padding:4px 8px;border-radius:6px}.paint-tool__mode--paint{background:#22c55e33;color:#4ade80;border:1px solid rgba(34,197,94,.4)}.paint-tool__mode--erase{background:#ef444433;color:#f87171;border:1px solid rgba(239,68,68,.4)}.paint-tool__toggle-row{display:flex;flex-direction:column;gap:6px;margin-bottom:8px}.paint-tool__toggle-label{font-size:11px;color:#e0e0e0}.paint-tool__toggle-btns{display:flex;gap:4px}.paint-tool__toggle-btns .btn{flex:1;font-size:11px;padding:4px 8px}.paint-tool__slider-row{display:flex;flex-direction:column;gap:4px;margin-bottom:4px}.paint-tool__slider-label{display:flex;justify-content:space-between;align-items:center}.paint-tool__slider-text{font-size:11px;color:#e0e0e0}.paint-tool__slider-value{font-size:11px;color:var(--tool-panel-slider-value, var(--accent-blue-bright));font-weight:700}.paint-tool__slider{width:100%;cursor:pointer;accent-color:var(--accent-blue-mid)}.paint-tool__content{display:flex;flex-direction:column;gap:8px;flex:1}.paint-tool__actions{display:flex;gap:4px;margin-bottom:4px}.paint-tool__action-btn{flex:1;font-size:11px;padding:4px 6px;display:flex;justify-content:center;align-items:center;gap:4px;border-radius:8px;box-shadow:0 2px #00000047,inset 0 1px #ffffff38;transition:transform .1s ease,filter .1s ease,box-shadow .1s ease}.paint-tool__action-btn:active:not(:disabled){transform:translateY(1px);box-shadow:0 1px #0000004d,inset 0 2px 4px #0000001f}.paint-tool__action-btn--paint{color:#fff;background:linear-gradient(165deg,#4ade80,#22c55e 45%,#15803d);border-color:#145a2d73;box-shadow:0 var(--btn-bevel) 0 #0f502880,0 5px 12px #0003,inset 0 1px #ffffff4d}.paint-tool__action-btn--erase{color:#fff;background:linear-gradient(165deg,#f87171,#ef4444 45%,#b91c1c);border-color:#781e1e73;box-shadow:0 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