:root{--background: #FAFAFA;--foreground: #0F172A;--muted: #F1F5F9;--muted-foreground: #64748B;--card: #FFFFFF;--border: #E2E8F0;--viewer-background: #EFF4F8;--panel-overlay: rgba(255, 255, 255, .92);--panel-overlay-strong: rgba(255, 255, 255, .97);--panel-overlay-soft: rgba(255, 255, 255, .88);--modal-overlay: rgba(15, 23, 42, .45);--accent: #06ac56;--accent-secondary: #50c48a;--accent-foreground: #FFFFFF;--accent-muted: rgba(6, 172, 86, .06);--accent-muted-border: rgba(6, 172, 86, .25);--error: #EF4444;--error-muted: rgba(239, 68, 68, .06);--error-border: rgba(239, 68, 68, .25);--gradient-accent: linear-gradient(135deg, #06ac56 0%, #50c48a 100%);--gradient-accent-h: linear-gradient(to right, #06ac56, #50c48a);--shadow-xs: 0 1px 2px rgba(15, 23, 42, .04);--shadow-sm: 0 1px 4px rgba(15, 23, 42, .06), 0 1px 2px rgba(15, 23, 42, .04);--shadow-md: 0 4px 8px rgba(15, 23, 42, .07), 0 2px 4px rgba(15, 23, 42, .04);--shadow-lg: 0 10px 24px rgba(15, 23, 42, .09), 0 4px 8px rgba(15, 23, 42, .04);--shadow-xl: 0 24px 48px rgba(15, 23, 42, .12), 0 8px 16px rgba(15, 23, 42, .05);--shadow-accent: 0 4px 16px rgba(6, 172, 86, .22);--shadow-accent-lg: 0 8px 28px rgba(6, 172, 86, .32);--font-display: "Calistoga", Georgia, serif;--font-ui: "Inter", ui-sans-serif, system-ui, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", ui-monospace, monospace;--radius-xs: 4px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-full: 999px;--ease: cubic-bezier(.16, 1, .3, 1);--t-fast: .15s cubic-bezier(.16, 1, .3, 1);--t-base: .2s cubic-bezier(.16, 1, .3, 1);--t-slow: .3s cubic-bezier(.16, 1, .3, 1);font-family:var(--font-ui);color:var(--foreground);background:var(--background);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;overflow:hidden}h1,h2,h3,h4,p{margin:0}button,input{font:inherit}::-webkit-scrollbar{width:4px;height:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}::-webkit-scrollbar-thumb:hover{background:var(--muted-foreground)}.app-shell{display:grid;grid-template-columns:auto minmax(0,1fr);grid-template-rows:58px minmax(0,1fr);height:100vh;overflow:hidden}.top-panel{grid-column:1 / -1;grid-row:1;position:relative;display:flex;align-items:center;gap:14px;min-width:0;padding:0 14px;border-bottom:1px solid var(--border);background:var(--card);z-index:30}.top-brand{display:flex;align-items:center;gap:10px;min-width:190px;color:var(--foreground)}.top-logo-btn{display:grid;place-items:center;padding:0;border:0;background:transparent;cursor:pointer}.top-brand-logo{width:42px;height:42px;object-fit:contain;flex-shrink:0}.top-brand span{display:grid;gap:2px;min-width:0}.top-brand strong{font-family:var(--font-display);font-size:1.05rem;font-weight:700;line-height:1;color:var(--foreground);white-space:nowrap}.top-brand small{font-family:var(--font-mono);font-size:.66rem;color:var(--foreground);opacity:.72;white-space:nowrap}.top-logo-btn:hover{opacity:.82}.top-logo-btn:focus-visible{outline:none;box-shadow:0 0 0 3px var(--accent-muted);border-radius:var(--radius-xs)}.left-panel{grid-column:1;grid-row:2;display:flex;flex-direction:column;gap:0;padding:0;width:280px;background:var(--card);border-right:1px solid var(--border);overflow:hidden;transition:width .25s cubic-bezier(.16,1,.3,1);will-change:width;flex-shrink:0;min-height:0}.left-panel.is-collapsed{width:56px}.left-panel.is-open.elements-active,.left-panel.is-open.structure-active,.left-panel.is-open.fabcontrol-active{width:560px}.left-panel.is-open.fabcontrol-active{width:min(560px,38vw)}.mobile-sidebar-backdrop{display:none}.brand-block{display:flex;align-items:center;gap:14px;width:100%;padding:0;border:0;background:transparent;text-align:left;cursor:pointer;border-radius:var(--radius-sm)}.brand-block:focus-visible{outline:none;box-shadow:0 0 0 3px var(--accent-muted)}.brand-logo{display:block;width:58px;height:58px;flex-shrink:0;object-fit:contain}.brand-block h1{font-family:var(--font-display);font-size:1.18rem;font-weight:400;color:var(--foreground);line-height:1.15}.brand-block p{margin-top:3px;font-family:var(--font-mono);font-size:.68rem;color:var(--muted-foreground);letter-spacing:.02em}.panel-divider{height:1px;background:var(--border);margin:4px 0}.settings-panel{display:grid;gap:0;position:fixed;top:14px;right:14px;z-index:40;width:118px;border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;background:var(--card);box-shadow:var(--shadow-lg)}.settings-panel.is-open{width:min(360px,calc(100vw - 28px))}.settings-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;min-height:42px;padding:0 14px;border:none;background:var(--panel-overlay-strong);color:var(--foreground);font-size:.84rem;font-weight:600;cursor:pointer;transition:background var(--t-fast)}.settings-toggle:hover{background:var(--border)}.settings-chevron{font-size:.58rem;color:var(--muted-foreground);line-height:1}.settings-body{display:grid;gap:12px;max-height:calc(100vh - 72px);overflow-y:auto;padding:14px;border-top:1px solid var(--border);background:var(--card)}.settings-reset-btn{justify-self:start;min-height:22px;padding:0 9px;border:1px solid var(--border);border-radius:var(--radius-xs);background:transparent;color:var(--muted-foreground);font-size:.66rem;font-weight:500;font-family:var(--font-mono);letter-spacing:.04em;cursor:pointer;transition:all var(--t-base)}.settings-reset-btn:hover{border-color:var(--accent-muted-border);background:var(--accent-muted);color:var(--accent)}.settings-divider{height:1px;background:var(--border);margin:2px 0}.upload-control{display:grid;gap:4px;padding:18px;border:1.5px dashed var(--border);border-radius:var(--radius-md);background:var(--card);cursor:pointer;transition:border-color var(--t-base),background var(--t-base)}.upload-control:hover:not(.is-disabled){border-color:var(--accent);background:var(--accent-muted)}.upload-control input{position:absolute;width:1px;height:1px;opacity:0}.upload-plus-icon{width:28px;height:28px;color:var(--accent);margin:0 auto 2px}.upload-control span{font-weight:600;font-size:.86rem;color:var(--foreground)}.upload-control small{font-family:var(--font-mono);font-size:.68rem;color:var(--muted-foreground)}.upload-control.is-disabled{cursor:wait;opacity:.5;pointer-events:none}.secondary-button{width:100%;min-height:40px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--card);color:var(--foreground);font-size:.84rem;font-weight:500;display:flex;align-items:center;justify-content:center;gap:7px;cursor:pointer;transition:all var(--t-base)}.secondary-button svg{width:15px;height:15px;flex-shrink:0}.secondary-button:hover:not(:disabled){border-color:var(--accent-muted-border);background:var(--accent-muted);color:var(--accent)}.secondary-button:disabled{cursor:not-allowed;opacity:.45}.secondary-button--active{border-color:var(--accent-muted-border);background:var(--accent-muted);color:var(--accent)}.status-cluster{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:flex;align-items:center;gap:6px;min-width:0;z-index:3}.status-box{position:relative;display:flex;align-items:center;gap:8px;min-width:0;max-width:min(420px,38vw);padding:5px 11px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--panel-overlay);backdrop-filter:blur(12px);white-space:nowrap;pointer-events:none}.top-popover{position:absolute;top:calc(100% + 8px);z-index:60;width:min(280px,calc(100vw - 28px));padding:12px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--panel-overlay-strong);box-shadow:var(--shadow-lg);backdrop-filter:blur(14px)}.profile-popover{position:fixed;top:50%;left:50%;right:auto;transform:translate(-50%,-50%)}.popover-title{margin-bottom:8px;font-size:.78rem;font-weight:700;color:var(--foreground)}.status-label{display:inline-flex;align-items:center;gap:5px;font-family:var(--font-mono);font-size:.58rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}.status-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex-shrink:0;animation:pulse-dot 2.2s ease-in-out infinite}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(.8)}}.status-box p{font-size:.72rem;color:var(--foreground);line-height:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.viewer-panel{grid-column:2;grid-row:2;position:relative;min-width:0;min-height:0;overflow:hidden;background:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px),var(--viewer-background);background-size:36px 36px}.viewer-wrap,.viewer-canvas{position:relative;width:100%;height:100%;min-width:0;min-height:0;overflow:hidden}.viewer-canvas canvas{display:block;width:100%;height:100%}.viewer-canvas{z-index:1}.viewer-center-upload{position:absolute;left:50%;top:34%;z-index:14;width:min(360px,calc(100% - 32px));transform:translate(-50%,-50%)}.viewer-center-upload .upload-control{min-height:116px;place-content:center;text-align:center;border-color:var(--accent-muted-border);background:var(--panel-overlay);backdrop-filter:blur(12px);box-shadow:var(--shadow-lg)}.view-preset-pad{position:absolute;right:18px;top:18px;z-index:12;display:grid;grid-template-columns:repeat(3,30px);grid-template-rows:repeat(3,30px);gap:3px;width:100px;height:100px;padding:2px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--panel-overlay);backdrop-filter:blur(12px);box-shadow:var(--shadow-lg)}.view-preset-pad button{display:grid;place-items:center;width:30px;height:30px;padding:0;border:1px solid transparent;border-radius:var(--radius-xs);background:transparent;color:var(--muted-foreground);cursor:pointer;transition:all var(--t-fast)}.view-preset-pad button svg{width:16px;height:16px;flex-shrink:0}.view-preset-pad button:hover:not(:disabled){border-color:var(--border);background:var(--muted);color:var(--foreground)}.view-preset-pad button:disabled{opacity:.35;cursor:not-allowed}.view-preset-pad button.is-active{border-color:transparent;background:var(--gradient-accent);color:var(--accent-foreground)}.view-style-dd{position:absolute;top:18px;left:50%;transform:translate(-50%);z-index:13}.view-style-trigger{display:flex;align-items:center;gap:5px;height:28px;padding:0 9px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel-overlay);backdrop-filter:blur(12px);color:var(--foreground);font-size:.7rem;font-weight:600;cursor:pointer;white-space:nowrap;box-shadow:var(--shadow-sm);transition:all var(--t-fast)}.view-style-trigger:hover:not(:disabled){background:var(--muted);border-color:var(--accent-muted-border)}.view-style-trigger.is-open{border-color:var(--accent-muted-border);background:var(--muted)}.view-style-trigger:disabled{opacity:.4;cursor:not-allowed}.view-style-trigger svg{width:10px;height:10px;flex-shrink:0;opacity:.6}.view-style-menu{position:absolute;top:calc(100% + 4px);left:50%;transform:translate(-50%);min-width:140px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel-overlay-strong);backdrop-filter:blur(14px);box-shadow:var(--shadow-lg);overflow:hidden;z-index:20}.view-style-item{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;height:30px;padding:0 10px;border:0;border-bottom:1px solid var(--border);background:transparent;color:var(--muted-foreground);font-size:.7rem;font-weight:500;cursor:pointer;transition:all var(--t-fast);text-align:left}.view-style-item kbd{font-family:var(--font-mono);font-size:.58rem;font-weight:600;line-height:1;color:var(--muted-foreground);opacity:.58}.view-style-item.is-active kbd{color:var(--accent);opacity:.72}.view-style-item:last-child{border-bottom:0}.view-style-item:hover{background:var(--muted);color:var(--foreground)}.view-style-item.is-active{color:var(--accent);font-weight:700;background:var(--accent-muted)}.view-home{grid-column:1;grid-row:3}.view-top{grid-column:2;grid-row:1}.view-ortho{grid-column:3;grid-row:1}.view-left{grid-column:1;grid-row:2}.view-front{grid-column:2;grid-row:2}.view-right{grid-column:3;grid-row:2}.view-fit{grid-column:1;grid-row:1}.view-bottom{grid-column:2;grid-row:3}.view-back{grid-column:3;grid-row:3}.view-saved-toast{padding:5px 10px;border-radius:var(--radius-sm);background:var(--panel-overlay);backdrop-filter:blur(12px);border:1px solid var(--border);color:var(--accent);font-size:.72rem;font-weight:600;box-shadow:var(--shadow-md);pointer-events:none;white-space:nowrap;animation:toast-in .15s ease}@keyframes toast-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.bottom-control-row{position:absolute;left:50%;bottom:18px;z-index:12;display:flex;align-items:center;flex-wrap:wrap;justify-content:center;gap:4px;max-width:calc(100% - 28px);transform:translate(-50%)}.selection-action-bar{display:flex;flex-wrap:nowrap;justify-content:center;gap:4px;height:43.6px;padding:5px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--panel-overlay);backdrop-filter:blur(12px);box-shadow:var(--shadow-lg)}.selection-action-bar button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;min-height:30px;min-width:62px;width:62px;padding:2px 8px 1px;border:1px solid transparent;border-radius:var(--radius-xs);background:transparent;color:var(--muted-foreground);font-size:.68rem;font-weight:700;cursor:pointer;transition:all var(--t-fast)}.selection-action-bar button svg{width:13px;height:13px;flex-shrink:0}.selection-action-bar button span{line-height:1}.selection-action-bar button:hover:not(:disabled){border-color:var(--border);background:var(--muted);color:var(--foreground)}.selection-action-bar button.is-active{border-color:transparent;background:var(--gradient-accent);color:var(--accent-foreground);box-shadow:var(--shadow-accent)}.selection-action-bar button:disabled{opacity:.4;cursor:not-allowed}.navigation-mode-bar{position:absolute;right:18px;top:50%;z-index:12;display:flex;flex-direction:column;flex-wrap:nowrap;justify-content:center;align-items:center;gap:4px;height:auto;padding:5px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--panel-overlay);backdrop-filter:blur(12px);box-shadow:var(--shadow-lg);transform:translateY(-50%)}.navigation-mode-separator{width:1px;height:22px;margin:0 2px;background:var(--border)}.navigation-mode-bar button{width:36px;height:36px;min-width:36px;min-height:36px;display:grid;place-items:center;padding:0;border:1px solid transparent;border-radius:var(--radius-xs);background:transparent;color:var(--muted-foreground);cursor:pointer;transition:all var(--t-fast)}.navigation-mode-bar button svg{width:18px;height:18px}.navigation-mode-bar button:disabled{opacity:.4;cursor:not-allowed}.navigation-mode-bar button:hover{border-color:var(--border);background:var(--muted);color:var(--foreground)}.navigation-mode-bar button.is-active{border-color:transparent;background:var(--gradient-accent);color:var(--accent-foreground);box-shadow:var(--shadow-accent)}.selection-mode-bar{position:absolute;right:18px;top:calc(50% + 90px);z-index:12;display:flex;flex-direction:column;gap:4px;padding:5px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--panel-overlay);backdrop-filter:blur(12px);box-shadow:var(--shadow-lg)}.selection-mode-bar button{width:36px;height:36px;display:grid;place-items:center;padding:0;border:1px solid transparent;border-radius:var(--radius-xs);background:transparent;color:var(--muted-foreground);cursor:pointer;transition:all var(--t-fast)}.selection-mode-bar button svg{width:18px;height:18px}.selection-mode-bar button:hover{border-color:var(--border);background:var(--muted);color:var(--foreground)}.selection-mode-bar button.is-active{border-color:transparent;background:var(--gradient-accent);color:var(--accent-foreground);box-shadow:var(--shadow-accent)}.orientation-gizmo{position:absolute;right:18px;bottom:18px;z-index:11;width:116px;height:116px;pointer-events:none}.gizmo-stage{position:relative;width:100%;height:100%}.gizmo-line{position:absolute;left:50%;top:50%;height:3px;border-radius:var(--radius-full);transform-origin:left center;pointer-events:none}.gizmo-origin{position:absolute;left:50%;top:50%;width:7px;height:7px;border-radius:50%;background:#e5e7eb;transform:translate(-50%,-50%);box-shadow:0 0 0 2px #00000059}.gizmo-axis,.gizmo-back-dot{position:absolute;left:calc(50% - 10px);top:calc(50% - 10px);width:20px;height:20px;border-radius:50%;background:var(--axis-color)}.gizmo-axis{display:grid;place-items:center;border:none;color:#fff;font-family:var(--font-mono);font-size:.64rem;font-weight:800;cursor:pointer;pointer-events:auto;box-shadow:0 4px 10px #00000057;transition:filter var(--t-fast),transform var(--t-fast)}.gizmo-axis:hover{filter:brightness(1.12)}.gizmo-axis:focus-visible{outline:none;box-shadow:0 0 0 3px #ffffff47,0 4px 10px #00000057}.gizmo-back-dot{width:10px;height:10px;left:calc(50% - 5px);top:calc(50% - 5px);padding:0;border:none;cursor:pointer;pointer-events:auto}.gizmo-back-dot:hover{filter:brightness(1.18)}.gizmo-back-dot:focus-visible{outline:none;box-shadow:0 0 0 3px #ffffff38}.loading-overlay{position:absolute;top:50%;left:50%;z-index:6;display:grid;gap:12px;width:min(380px,calc(100% - 28px));padding:24px;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--panel-overlay-strong);backdrop-filter:blur(16px);box-shadow:var(--shadow-xl);transform:translate(-50%,-50%)}.loading-overlay strong{font-size:.92rem;font-weight:600;color:var(--foreground)}.loading-overlay span{font-size:.78rem;color:var(--muted-foreground);font-family:var(--font-mono);line-height:1.5}.stepper-overlay{background:var(--panel-overlay-strong);backdrop-filter:blur(8px);transition:opacity .4s}.stepper-overlay.is-complete{opacity:0;pointer-events:none}.load-stepper{display:flex;flex-direction:column;align-items:center;gap:24px}.load-stepper-track{display:flex;align-items:center}.load-step{display:flex;flex-direction:column;align-items:center;gap:8px}.load-step-circle{width:38px;height:38px;border-radius:50%;border:2px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:600;color:var(--muted-foreground);transition:background .3s,border-color .3s,color .3s}.load-step-circle svg{width:14px;height:14px}.load-step.is-done .load-step-circle{background:var(--accent);border-color:var(--accent);color:#fff}.load-step.is-active .load-step-circle{border-color:var(--accent);color:var(--accent)}.load-step-line{width:72px;height:2px;background:var(--border);margin-bottom:26px;flex-shrink:0;transition:background .3s}.load-step-line.is-done{background:var(--accent)}.load-step-label{font-size:.74rem;color:var(--muted-foreground);white-space:nowrap}.load-step.is-done .load-step-label,.load-step.is-active .load-step-label{color:var(--foreground)}.load-stepper-msg{font-size:.75rem;color:var(--muted-foreground);font-family:monospace;text-align:center;max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.selection-loading-overlay{width:min(320px,calc(100% - 28px));padding:20px}.loader-bar{width:100%;height:3px;overflow:hidden;border-radius:var(--radius-full);background:var(--border)}.loader-bar:after{content:"";display:block;width:38%;height:100%;border-radius:inherit;background:var(--gradient-accent-h);animation:load-slide 1.15s cubic-bezier(.4,0,.6,1) infinite alternate}@keyframes load-slide{0%{transform:translate(-25%)}to{transform:translate(270%)}}.error-overlay{position:absolute;top:50%;left:50%;z-index:6;display:grid;gap:10px;width:min(380px,calc(100% - 28px));padding:24px;border:1px solid var(--error-border);border-radius:var(--radius-lg);background:var(--panel-overlay-strong);backdrop-filter:blur(16px);box-shadow:var(--shadow-xl);transform:translate(-50%,-50%)}.error-overlay strong{font-size:.92rem;font-weight:600;color:var(--error)}.error-overlay span{font-size:.8rem;color:var(--muted-foreground);line-height:1.55;word-break:break-word}.error-overlay button{justify-self:start;margin-top:4px;min-height:34px;padding:0 16px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--card);color:var(--foreground);font-size:.78rem;font-weight:600;font-family:var(--font-mono);letter-spacing:.04em;cursor:pointer;transition:all var(--t-base)}.error-overlay button:hover{border-color:var(--accent-muted-border);background:var(--accent-muted);color:var(--accent)}.viewer-empty{position:absolute;bottom:20px;left:50%;transform:translate(-50%);display:grid;gap:5px;text-align:center;padding:14px 22px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--panel-overlay-soft);backdrop-filter:blur(8px);pointer-events:none;white-space:nowrap;box-shadow:var(--shadow-sm)}.viewer-empty strong{font-size:.86rem;font-weight:600;color:var(--foreground)}.viewer-empty span{font-size:.76rem;color:var(--muted-foreground)}.viewer-side-tools{position:absolute;top:58px;left:14px;z-index:4;display:grid;gap:7px;width:min(290px,calc(100% - 28px));max-height:calc(100% - 80px);overflow-y:auto;overflow-x:hidden;padding-bottom:6px}.viewer-tool-section{display:grid;gap:10px;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--panel-overlay);backdrop-filter:blur(10px);box-shadow:var(--shadow-sm);transition:box-shadow var(--t-base)}.viewer-tool-section:hover{box-shadow:var(--shadow-md)}.viewer-tool-section h3{display:flex;align-items:center;gap:7px;font-family:var(--font-mono);font-size:.62rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-foreground)}.viewer-tool-section h3:before{content:"";display:block;width:5px;height:5px;border-radius:50%;background:var(--gradient-accent);flex-shrink:0}.tool-empty{font-size:.76rem;color:var(--muted-foreground);line-height:1.5}.compact-list{display:grid;gap:0;margin:0}.compact-list div{display:grid;grid-template-columns:68px minmax(0,1fr);gap:6px;padding:5px 0;border-bottom:1px solid var(--border);align-items:baseline}.compact-list 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.viewer-top-toolbar{left:76px;top:58px}.left-panel.is-open+.viewer-panel .model-actions-wrap{left:76px;top:106px}.left-panel.is-open+.viewer-panel .viewer-bottom-toolbar{left:76px}.orientation-gizmo{right:14px;bottom:82px;width:104px;height:104px}.properties-window{top:132px;right:8px;width:calc(100vw - 16px);max-height:calc(100vh - 140px)}.selection-name-window{left:50%;bottom:80px;width:calc(100vw - 16px)}}@media(max-width:420px){.top-panel{grid-template-columns:38px minmax(0,1fr) auto}.top-brand span{display:none}.top-brand{max-width:38px}.status-box p{max-width:96px}}.modal-backdrop{position:fixed;inset:0;z-index:200;display:grid;place-items:center;background:var(--modal-overlay);backdrop-filter:blur(4px)}.modal-card{display:grid;gap:18px;width:min(400px,calc(100vw - 32px));padding:28px;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--card);box-shadow:var(--shadow-xl)}.modal-card h2{font-family:var(--font-display);font-size:1.2rem;font-weight:400;color:var(--foreground);margin:0}.modal-note{font-size:.78rem;color:var(--muted-foreground);line-height:1.55;margin:0}.modal-tab-row{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}.modal-tab-row button{min-height:36px;border:none;background:transparent;color:var(--muted-foreground);font-family:var(--font-ui);font-size:.84rem;font-weight:500;cursor:pointer;transition:all var(--t-fast)}.modal-tab-row button.is-active{background:var(--accent);color:var(--accent-foreground)}.modal-form{display:grid;gap:12px}.google-auth-button{display:flex;align-items:center;justify-content:center;gap:10px;min-height:40px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--card);color:var(--foreground);font-size:.84rem;font-weight:600;cursor:pointer;transition:all var(--t-fast)}.google-auth-button span{display:grid;place-items:center;width:20px;height:20px;border-radius:50%;background:#fff;color:#4285f4;font-weight:800}.google-auth-button:hover:not(:disabled){border-color:var(--accent-muted-border);background:var(--accent-muted);color:var(--accent)}.google-auth-button:disabled{opacity:.45;cursor:not-allowed}.modal-divider{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:10px;color:var(--muted-foreground);font-size:.68rem}.modal-divider:before,.modal-divider:after{content:"";height:1px;background:var(--border)}.modal-field{display:grid;gap:5px}.modal-field label{font-family:var(--font-mono);font-size:.68rem;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--muted-foreground)}.modal-field input{min-height:38px;padding:0 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--muted);color:var(--foreground);font-family:var(--font-ui);font-size:.86rem;transition:border-color var(--t-fast),background var(--t-fast)}.modal-field input:focus{outline:none;border-color:var(--accent);background:var(--card)}.modal-error{font-size:.78rem;color:var(--error);line-height:1.5;margin:0}.modal-actions{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center}.primary-button{width:100%;min-height:40px;padding:0 16px;border:none;border-radius:var(--radius-sm);background:var(--gradient-accent);color:var(--accent-foreground);font-family:var(--font-ui);font-size:.84rem;font-weight:600;cursor:pointer;box-shadow:var(--shadow-accent);transition:filter var(--t-fast),opacity var(--t-fast)}.primary-button:hover:not(:disabled){filter:brightness(1.08)}.primary-button:disabled{opacity:.4;cursor:not-allowed}.share-url-box{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:center;padding:12px 14px;border:1px solid var(--accent-muted-border);border-radius:var(--radius-sm);background:var(--accent-muted)}.share-url-box code{font-family:var(--font-mono);font-size:.7rem;color:var(--accent);word-break:break-all;line-height:1.55}.share-modal-card{width:min(360px,calc(100vw - 32px));gap:14px;padding:18px;border-radius:var(--radius-md);background:var(--panel-overlay-strong);backdrop-filter:blur(14px)}.share-modal-header{display:flex;align-items:center;justify-content:space-between;gap:12px}.share-modal-header h2{margin:0}.share-modal-card .share-url-box{grid-template-columns:minmax(0,1fr)}.share-modal-card .share-url-box .secondary-button{min-height:34px}.profile-modal-card{width:min(340px,calc(100vw - 32px));gap:14px;padding:18px;border-radius:var(--radius-md);background:var(--panel-overlay-strong);backdrop-filter:blur(14px)}.profile-modal-card 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28px;gap:5px}.tool-action-bar{position:absolute;left:18px;top:18px;z-index:12;display:flex;flex-direction:column;align-items:center;gap:4px;padding:5px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--panel-overlay);backdrop-filter:blur(12px);box-shadow:var(--shadow-lg)}.tool-action-bar button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;width:44px;min-height:40px;padding:4px 6px;border:1px solid transparent;border-radius:var(--radius-xs);background:transparent;color:var(--muted-foreground);font-size:.62rem;font-weight:700;cursor:pointer;transition:all var(--t-fast)}.tool-action-bar button svg{width:16px;height:16px;flex-shrink:0}.tool-action-bar button:hover:not(:disabled){border-color:var(--border);background:var(--muted);color:var(--foreground)}.tool-action-bar button.is-active{border-color:transparent;background:var(--gradient-accent);color:var(--accent-foreground);box-shadow:var(--shadow-accent)}.tool-action-bar button:disabled{opacity:.35;cursor:not-allowed}.tool-delete-btn{width:32px!important;min-height:28px!important;padding:4px!important;color:var(--error)!important;background:transparent!important;border-color:transparent!important;box-shadow:none!important}.tool-delete-btn:hover:not(:disabled){background:var(--error-muted)!important;border-color:var(--error-border)!important;color:var(--error)!important}.tool-action-bar{display:none}.icon-tool-btn{width:40px;height:40px;min-width:40px;min-height:40px;padding:0;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--panel-overlay);backdrop-filter:blur(12px);box-shadow:var(--shadow-lg);color:var(--muted-foreground);display:grid;place-items:center;cursor:pointer;transition:all var(--t-fast)}.icon-tool-btn svg{width:19px;height:19px}.icon-tool-btn:hover:not(:disabled){background:var(--muted);color:var(--foreground)}.icon-tool-btn.is-active{border-color:transparent;background:var(--gradient-accent);color:var(--accent-foreground);box-shadow:var(--shadow-accent)}.icon-tool-btn:disabled{opacity:.35;cursor:not-allowed}.clip-chip{min-width:34px;height:34px;padding:0 9px;border:1px solid var(--accent-muted-border);border-radius:var(--radius-full);background:var(--accent-muted);color:var(--accent);font-size:.72rem;font-weight:700;white-space:nowrap;backdrop-filter:blur(12px);box-shadow:var(--shadow-md);cursor:pointer;transition:all var(--t-fast)}.clip-clear-btn{width:32px;height:32px;padding:4px;border:none;border-radius:var(--radius-md);background:transparent;color:var(--error);display:grid;place-items:center;cursor:pointer;transition:all var(--t-fast)}.clip-clear-btn 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