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ease}.left-sidebar-add-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.top-bar{display:flex;flex-direction:column;padding:0;box-sizing:border-box}.top-bar-header{display:flex;align-items:center;gap:12px;padding:6px 12px;border-bottom:1px solid var(--border-color)}.top-bar-logo{display:flex;align-items:center;gap:6px;padding-right:12px;border-right:1px solid var(--border-color)}.logo-icon{width:22px;height:22px;border-radius:5px;display:block;flex-shrink:0}.logo-text{font-size:14px;font-weight:600;color:var(--text-primary)}.top-bar-formula{display:flex;align-items:center;gap:8px;flex:1;min-width:0}.top-bar-settings{padding:6px 10px;background:transparent;border:1px solid var(--border-color);border-radius:4px;color:var(--text-secondary);cursor:pointer;font-size:16px;transition:all .15s 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ease}.menu-item:hover:not(.disabled){background:var(--bg-hover)}.menu-item.disabled{color:var(--text-muted);cursor:not-allowed}.menu-item-icon{width:20px;text-align:center;margin-right:8px;font-size:12px}.menu-item-label{flex:1}.menu-item-shortcut{color:var(--text-muted);font-size:11px;margin-left:16px}.menu-divider{height:1px;background:var(--border-color);margin:4px 8px}.ribbon-tabs-inline{display:flex;align-items:center;gap:2px;margin-left:16px;padding-left:16px;border-left:1px solid var(--border-color)}.ribbon-toolbar{display:flex;flex-direction:column;flex:1;min-width:0}.ribbon-tabs{display:flex;align-items:center;gap:2px;padding:0 4px;height:28px;border-bottom:1px solid var(--border-color)}.ribbon-tab{padding:4px 14px;background:transparent;border:none;border-radius:4px 4px 0 0;color:var(--text-secondary);font-size:12px;font-weight:500;cursor:pointer;transition:all .15s ease}.ribbon-tab:hover{background:var(--bg-hover);color:var(--text-primary)}.ribbon-tab.active{background:var(--bg-tertiary);color:var(--text-primary);border-bottom:2px solid var(--accent-blue);margin-bottom:-1px}.ribbon-tab--contextual{color:var(--accent-green, #a6e3a1);font-style:italic;border-left:2px solid var(--accent-green, #a6e3a1);margin-left:6px;padding-left:10px}.ribbon-tab--contextual:hover{color:var(--text-primary);background:#a6e3a11f}.ribbon-tab--contextual.active{color:var(--accent-green, #a6e3a1);border-bottom:2px solid var(--accent-green, #a6e3a1);background:var(--bg-tertiary)}.ribbon-table-presets{display:flex;align-items:center;gap:4px;padding:4px 0;flex-wrap:nowrap}.ribbon-table-preset-swatch{width:32px;height:32px;border-radius:4px;border:2px solid transparent;cursor:pointer;padding:0;overflow:hidden;outline:none;flex-shrink:0;transition:border-color .12s ease,transform .12s ease}.ribbon-table-preset-swatch:hover{transform:scale(1.1)}.ribbon-table-preset-swatch.active{border-color:var(--text-primary);box-shadow:0 0 0 1px var(--accent-blue)}.ribbon-panel{display:flex;align-items:stretch;gap:2px;padding:6px 8px;min-height:68px;background:var(--bg-tertiary);overflow:visible}.ribbon-group{display:flex;flex-direction:column;padding:0 12px;border-right:1px solid var(--border-color);position:relative}.ribbon-group:last-child{border-right:none}.ribbon-group-content{display:flex;flex-direction:column;gap:4px;flex:1}.ribbon-group-label{font-size:10px;color:var(--text-muted);text-align:center;text-transform:uppercase;padding-top:4px;border-top:1px solid var(--border-color);margin-top:4px}.ribbon-button-row{display:flex;gap:2px}.ribbon-button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:4px 8px;min-width:44px;background:transparent;border:1px solid transparent;border-radius:4px;color:var(--text-secondary);cursor:pointer;transition:all .12s ease}.ribbon-button:hover:not(:disabled){background:var(--bg-hover);border-color:var(--border-color);color:var(--text-primary)}.ribbon-button.active{background:#4f9cff26;border-color:var(--accent-blue);color:var(--accent-blue)}.ribbon-button:disabled{opacity:.4;cursor:not-allowed}.ribbon-button-icon{font-size:16px;line-height:1}.ribbon-button-label{font-size:10px;line-height:1;white-space:nowrap}.ribbon-button-large{min-width:54px;padding:6px 10px}.ribbon-button-large .ribbon-button-icon{font-size:20px}.ribbon-button-large .ribbon-button-label{font-size:11px}.ribbon-button-compact{min-width:26px;max-width:26px;height:26px;padding:4px;justify-content:center}.ribbon-button-compact .ribbon-button-icon{font-size:14px;font-weight:400;line-height:1}.ribbon-split{position:relative;display:flex;align-items:stretch;border:1px solid transparent;border-radius:4px}.ribbon-split:hover:not(.disabled){background:var(--bg-hover);border-color:var(--border-color)}.ribbon-split.active{background:#4f9cff26;border-color:var(--accent-blue)}.ribbon-split.open{background:var(--bg-hover);border-color:var(--border-color)}.ribbon-split .ribbon-split-main{border:none;border-radius:3px 0 0 3px;min-width:36px;padding-right:4px}.ribbon-split .ribbon-split-main:hover:not(:disabled),.ribbon-split .ribbon-split-main.active{background:transparent;border-color:transparent}.ribbon-split.active .ribbon-split-main{color:var(--accent-blue)}.ribbon-split-chevron{display:flex;align-items:center;justify-content:center;width:14px;padding:0;margin:0;background:transparent;border:none;border-left:1px solid transparent;border-radius:0 3px 3px 0;color:var(--text-secondary);cursor:pointer;font-size:9px;line-height:1}.ribbon-split:hover:not(.disabled) .ribbon-split-chevron,.ribbon-split.active 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var(--border-color);gap:4px}.right-panel-mode-switcher{display:flex;flex:1;background:var(--bg-tertiary);border-radius:6px;padding:2px;gap:2px}.right-panel-mode-button{flex:1;padding:6px 12px;background:transparent;border:none;border-radius:4px;color:var(--text-secondary);font-size:12px;cursor:pointer;transition:all .15s ease}.right-panel-mode-button:hover{color:var(--text-primary)}.right-panel-mode-button.active{background:var(--bg-hover);color:var(--text-primary);box-shadow:0 1px 3px #0003}.right-panel-toggle{padding:4px 8px;background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:12px}.right-panel-toggle:hover{color:var(--text-primary)}.right-panel-content{flex:1;overflow-y:auto}.right-panel-empty{text-align:center;padding:32px 16px;color:var(--text-muted)}.right-panel-empty p{margin:0 0 4px}.selection-mode-panel,.overview-mode-panel{height:100%}.claude-panel{padding:12px;font-size:12px;line-height:1.5;color:var(--text-primary)}.claude-panel-lead{margin:0 0 12px;color:var(--text-secondary)}.claude-panel-connector+.claude-panel-connector{margin-top:16px;padding-top:16px;border-top:1px solid var(--border-color, #444)}.claude-panel-connector-title{margin:0 0 8px;font-size:12px;font-weight:600;color:var(--text-primary)}.claude-panel-steps{margin:0 0 14px;padding-left:18px;color:var(--text-secondary)}.claude-panel-steps li{margin-bottom:4px}.claude-panel-label{display:block;margin-bottom:4px;font-size:11px;font-weight:500;color:var(--text-secondary)}.claude-panel-url-row{display:flex;gap:6px;align-items:stretch}.claude-panel-url{flex:1;min-width:0;padding:5px 7px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;color:var(--text-primary);background:var(--input-bg, rgba(0, 0, 0, .2));border:1px solid var(--border-color, #444);border-radius:4px;white-space:nowrap;overflow-x:auto}.claude-panel-copy{flex:0 0 auto;padding:5px 12px;font-size:11px;color:var(--text-primary);background:var(--button-bg, #383838);border:1px solid var(--border-color, #444);border-radius:4px;cursor:pointer}.claude-panel-copy:hover{background:var(--button-hover-bg, #454545)}.claude-panel-harness-row{margin-top:10px}.claude-panel-harness-copy{width:100%}.claude-panel-warn{margin:12px 0 0;font-size:11px;color:var(--text-muted)}.claude-panel-hint{margin:4px 0 0;font-size:11px;color:var(--text-muted)}.claude-panel-details{margin-top:12px;font-size:11px;color:var(--text-muted)}.claude-panel-details>summary{cursor:pointer;color:var(--text-primary)}.claude-panel-caps{margin:6px 0 0;padding-left:16px}.claude-panel-caps>li{margin-bottom:3px;line-height:1.4}.selection-history-panel{margin-top:12px;border-top:1px solid var(--border-color);font-size:12px}.selection-history-section .collapsible-section-header{padding:8px 12px}.selection-history-section .collapsible-section-body{padding:0 12px 8px}.selection-history-shortcut-hint{font-size:10px;color:var(--text-muted);background:var(--bg-secondary);padding:2px 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#0006}.goal-seeker-modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border-color);background:var(--bg-secondary);border-radius:12px 12px 0 0}.goal-seeker-modal-title{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:600;color:var(--text-primary)}.goal-seeker-modal-icon{font-size:20px}.goal-seeker-modal-equation{padding:4px 10px;background:var(--bg-tertiary);border-radius:6px;font-weight:500}.goal-seeker-modal-equation .latex-display{font-size:14px}.goal-seeker-modal-close{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;color:var(--text-secondary);font-size:24px;cursor:pointer;border-radius:6px;transition:all .15s ease}.goal-seeker-modal-close:hover{background:var(--bg-hover);color:var(--text-primary)}.goal-seeker-modal-body{flex:1;overflow-y:auto;padding:0}.goal-seeker-modal-body .inspector-section{border:none;margin:0}.goal-seeker-modal-body .inspector-vars-header{display:none}.goal-seeker-modal-body .inspector-vars.goal-seeker{padding:16px 20px}.goal-seeker-modal-empty{padding:40px 20px;text-align:center;color:var(--text-secondary)}.goal-seeker-modal-empty p{margin:0 0 8px}.goal-seeker-modal-empty .hint{font-size:13px;opacity:.8}.goal-seeker-modal-footer{display:flex;justify-content:flex-end;gap:10px;padding:16px 20px;border-top:1px solid var(--border-color);background:var(--bg-secondary);border-radius:0 0 12px 12px}.goal-seeker-modal-btn{padding:8px 20px;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .15s ease}.goal-seeker-modal-btn.secondary{background:var(--bg-tertiary);border:1px solid var(--border-color);color:var(--text-secondary)}.goal-seeker-modal-btn.secondary:hover{background:var(--bg-hover);color:var(--text-primary)}.goal-seeker-modal-btn.primary{background:var(--accent-blue);border:none;color:#fff}.goal-seeker-modal-btn.primary:hover{background:#3b82f6}.goal-seeker-modal-btn:disabled{opacity:.5;cursor:not-allowed}[data-theme=light] .goal-seeker-modal-overlay{background:#0006}[data-theme=light] .goal-seeker-modal{box-shadow:0 20px 60px #0003}.goal-seeker-modal--fullscreen{width:95%;max-width:1400px;max-height:calc(100vh - 80px);height:calc(100vh - 80px)}.goal-seeker-modal--fullscreen .goal-seeker-modal-body{flex:1;min-height:0;overflow:hidden}.goal-seeker-modal--fullscreen .goal-seeker-modal-body--table{overflow-y:auto}.goal-seeker-modal-view-toggle{display:flex;gap:2px;margin-left:auto;margin-right:16px;background:var(--bg-tertiary);border-radius:6px;padding:2px}.goal-seeker-modal-view-btn{padding:6px 12px;background:transparent;border:none;border-radius:4px;color:var(--text-secondary);font-size:12px;font-weight:500;cursor:pointer;transition:all .15s ease}.goal-seeker-modal-view-btn:hover{color:var(--text-primary);background:var(--bg-hover)}.goal-seeker-modal-view-btn.active{background:var(--bg-primary);color:var(--text-primary);box-shadow:0 1px 3px #0003}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;top:-100px;left:16px;background:var(--accent-blue, #4A90D9);color:#fff;padding:12px 24px;font-size:14px;font-weight:600;text-decoration:none;border-radius:0 0 8px 8px;z-index:var(--z-skip-link);box-shadow:0 2px 8px #0000004d;transition:top .2s ease}.skip-link:focus{top:0;outline:2px solid #fff;outline-offset:2px}:focus-visible{outline:2px solid var(--accent-blue, #4A90D9);outline-offset:2px}button:focus-visible,[role=button]:focus-visible,a:focus-visible,select:focus-visible{outline:2px solid var(--accent-blue, #4A90D9);outline-offset:2px}input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent-blue, #4A90D9);outline-offset:-1px}.app-layout button:focus-visible,.app-layout [role=button]:focus-visible,.app-layout a:focus-visible{outline:2px solid var(--accent-blue, #4A90D9);outline-offset:2px;box-shadow:0 0 0 4px #4a90d94d}@media(prefers-reduced-motion:reduce){.skip-link{transition:none}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.ribbon-symbols{position:relative;display:inline-flex;align-items:center}.ribbon-symbols-btn{height:28px;min-width:44px;padding:0 8px;display:inline-flex;align-items:center;gap:4px;font-size:14px;background:var(--bg-primary);color:var(--text-primary);border:1px solid var(--border-color);border-radius:4px;cursor:pointer}.ribbon-symbols-btn:hover{background:var(--bg-hover, var(--bg-secondary))}.ribbon-symbols-caret{font-size:9px;opacity:.7}.ribbon-symbols-grid{position:absolute;top:32px;left:0;z-index:1000;display:grid;grid-template-columns:repeat(5,34px);gap:2px;padding:6px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:4px;box-shadow:0 4px 12px #00000040}.ribbon-symbols-cell{width:34px;height:30px;display:inline-flex;align-items:center;justify-content:center;font-size:15px;background:transparent;color:var(--text-primary);border:1px solid transparent;border-radius:3px;cursor:pointer}.ribbon-symbols-cell:hover{background:var(--bg-hover, var(--bg-primary));border-color:var(--border-color)}.ribbon-symbols-hint{grid-column:1 / -1;padding:4px 2px 0;font-size:10px;color:var(--text-secondary, #888);border-top:1px solid var(--border-color);margin-top:2px}.ribbon-symbols-hint kbd{font-family:inherit;border:1px solid var(--border-color);border-radius:3px;padding:0 3px;font-size:9px}.hotkeys-modal{position:fixed;top:64px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;width:min(720px,calc(100vw - 32px));max-height:calc(100vh - 96px);background:var(--bg-secondary, #1b1b1b);border:1px solid var(--border-color, #444);border-radius:8px;padding:14px 16px;color:var(--text-primary, #efefef);z-index:var(--z-modal)}.hotkeys-modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.hotkeys-btn{padding:3px 8px;border:1px solid var(--border-color, #555);background:var(--bg-tertiary, #2a2a2a);color:var(--text-primary, #efefef);border-radius:4px;cursor:pointer}.hotkeys-btn:disabled{opacity:.45;cursor:default}.hotkeys-search-label{font-size:11px;color:var(--text-muted, #999);margin-bottom:3px}.hotkeys-search{width:100%;padding:6px 8px;background:var(--bg-primary, #111);color:var(--text-primary, #efefef);border:1px solid var(--border-color, #555);border-radius:4px;margin-bottom:10px}.hotkeys-tabs{display:flex;flex-wrap:wrap;gap:2px;border-bottom:1px solid var(--border-color, #444);margin-bottom:8px}.hotkeys-tab{padding:5px 10px;background:transparent;border:none;border-bottom:2px solid transparent;color:var(--text-secondary, #bbb);cursor:pointer;font-size:12px}.hotkeys-tab.active{color:var(--text-primary, #efefef);border-bottom-color:var(--accent-color, #4a9eff)}.hotkeys-tab.empty{opacity:.4}.hotkeys-tab-count{margin-left:5px;padding:0 5px;border-radius:8px;background:var(--bg-tertiary, #2a2a2a);font-size:10px}.hotkeys-body{overflow-y:auto;flex:1;min-height:0}.hotkeys-group{margin-bottom:12px}.hotkeys-group-title{margin:0 0 4px;font-size:10px;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted, #999);border-bottom:1px solid var(--border-color, #333);padding-bottom:3px}.hotkeys-row{display:grid;grid-template-columns:1fr 168px 28px;gap:8px;align-items:start;padding:4px 0}.hotkeys-row-label label{font-size:13px;cursor:pointer}.hotkeys-note{font-size:10px;color:var(--text-muted, #999);margin-top:1px}.hotkeys-warn{font-size:10px;color:var(--warning-color, #d19a3a);margin-top:1px}.hotkeys-input{padding:4px 6px;background:var(--bg-primary, #111);color:var(--text-primary, #efefef);border:1px solid var(--border-color, #555);border-radius:4px;font-size:12px;text-align:center;cursor:pointer}.hotkeys-input.warn{border-color:var(--warning-color, #d19a3a)}.hotkeys-input.recording{border-color:var(--accent-color, #4a9eff);color:var(--accent-color, #4a9eff)}.hotkeys-input:disabled{opacity:.55;cursor:default}.hotkeys-input::placeholder{color:var(--text-muted, #777);font-style:italic}.hotkeys-reset{background:transparent;border:1px solid transparent;color:var(--text-muted, #999);border-radius:4px;cursor:pointer;font-size:13px;line-height:1;padding:4px 0}.hotkeys-reset:hover:not(:disabled){border-color:var(--border-color, #555);color:var(--text-primary, #efefef)}.hotkeys-reset:disabled{opacity:.25;cursor:default}.hotkeys-empty{color:var(--text-muted, #999);font-size:12px;padding:12px 2px}.hotkeys-foot{margin-top:10px;padding-top:8px;border-top:1px solid var(--border-color, #333);font-size:11px;color:var(--text-muted, #999)}.hotkeys-foot kbd{background:var(--bg-tertiary, #2a2a2a);border:1px solid var(--border-color, #555);border-radius:3px;padding:0 4px;font-size:10px}.hotkeys-filters{display:flex;gap:6px;margin-bottom:8px}.hotkeys-chip{padding:2px 9px;font-size:11px;border:1px solid var(--border-color, #555);border-radius:999px;background:transparent;color:var(--text-secondary, #bbb);cursor:pointer}.hotkeys-chip.active{background:var(--bg-tertiary, #2a2a2a);color:var(--text-primary, #efefef);border-color:var(--accent-color, #4a9eff)}.hotkeys-row.unwired .hotkeys-row-label label{color:var(--text-muted, #999)}.hotkeys-badge{margin-left:6px;padding:0 5px;border-radius:3px;border:1px dashed var(--border-color, #555);font-size:9px;text-transform:uppercase;letter-spacing:.03em;color:var(--text-muted, #999);vertical-align:middle;cursor:help}.ribbon-group-collapsed .ribbon-group-content{justify-content:center}.ribbon-collapsed-btn{width:30px;height:100%;min-height:28px;background:transparent;border:1px solid var(--border-color, #555);border-radius:4px;color:var(--text-primary, #efefef);cursor:pointer;font-size:11px}.ribbon-collapsed-btn:hover{background:var(--bg-tertiary, #2a2a2a)}.ribbon-group-popover{position:absolute;top:100%;left:0;z-index:1200;display:flex;gap:4px;padding:6px 8px;background:var(--bg-tertiary, #2a2a2a);border:1px solid var(--border-color, #555);border-radius:0 4px 4px;box-shadow:0 4px 12px #00000059;white-space:nowrap}.ribbon-tip-wrap{position:relative;display:inline-flex}.ribbon-tip{position:absolute;top:calc(100% + 6px);left:0;z-index:1300;display:flex;flex-direction:column;gap:3px;width:max-content;max-width:280px;padding:7px 9px;background:var(--bg-secondary, #1b1b1b);border:1px solid var(--border-color, #555);border-radius:6px;box-shadow:0 6px 18px #0006;text-align:left;white-space:normal}.ribbon-tip.flip{left:auto;right:0}.ribbon-tip-title{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--text-primary, #efefef)}.ribbon-tip-key{padding:1px 5px;border:1px solid var(--border-color, #555);border-radius:3px;background:var(--bg-tertiary, #2a2a2a);font-family:inherit;font-size:10px;font-weight:500;color:var(--text-secondary, #bbb);white-space:nowrap}.ribbon-tip-desc{font-size:11px;line-height:1.4;color:var(--text-secondary, #bbb)}.ribbon-tip-meta{font-size:10px;font-style:italic;color:var(--text-muted, #999)}.ribbon-tip-why{font-size:10px;line-height:1.4;color:var(--warning-color, #d19a3a);border-top:1px solid var(--border-color, #333);margin-top:2px;padding-top:3px}.ai-edits-card{margin-bottom:12px}.ai-edits-empty{margin:0;padding:8px 10px;font-size:11px;line-height:1.5;color:var(--text-secondary, 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#89b4fa)}.ai-edits-where{display:flex;align-items:baseline;gap:6px;font-weight:600}.ai-edits-kind{font-weight:400;font-size:10px;color:var(--text-secondary, #a6adc8);text-transform:uppercase;letter-spacing:.04em}.ai-edits-diff{display:flex;align-items:baseline;gap:5px;flex-wrap:wrap;font-family:var(--font-mono, ui-monospace, monospace);font-size:11px}.ai-edits-before{color:var(--text-secondary, #a6adc8);text-decoration:line-through;opacity:.75;word-break:break-word}.ai-edits-arrow{color:var(--text-secondary, #a6adc8)}.ai-edits-after{color:var(--accent-green, #a6e3a1);word-break:break-word}.ai-edits-tab{font-size:10px;color:var(--text-secondary, #a6adc8)}.calc-box.ai-selected{outline:2px solid var(--accent-blue, #4f9cff);outline-offset:2px;border-radius:3px;box-shadow:0 0 0 6px #4f9cff29}.ai-edits-row{display:flex;align-items:stretch;border-bottom:1px solid var(--border-color, #45475a)}.ai-edits-row .ai-edits-item{flex:1 1 auto;border-bottom:none;min-width:0}.ai-edits-accept{flex:0 0 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#2c2c2c;text-align:left}.blc-selector-code{font-weight:700;letter-spacing:.04em;line-height:1.15}.blc-selector-name{color:#9aa6b2;font-size:10px;line-height:1.2;max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.blc-selector.is-ribbon{height:44px}.blc-selector.is-ribbon .blc-selector-current{justify-content:center}.load-authoring{display:flex;flex-direction:column;gap:5px}.load-authoring .plan-props-field,.load-authoring .forge-props-field{display:grid;grid-template-columns:78px 1fr;align-items:center;gap:6px}.load-list{display:flex;flex-direction:column;gap:2px;margin-top:4px}.load-list-row{display:flex;align-items:center;justify-content:space-between;gap:6px;padding:3px 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optgroup{background:#1a1a1a;color:#e8e8e8}.drawing-scale-select:disabled{opacity:.5}.drawing-scale-select.is-ribbon{height:36px;max-width:148px;font-size:11px;background:var(--bg-primary, #1a1a1a);color:var(--text-primary, #e8e8e8);border-color:var(--border-color, #404040)}[data-theme=light] .drawing-scale-select.is-ribbon{color-scheme:light}[data-theme=light] .drawing-scale-select.is-ribbon option,[data-theme=light] .drawing-scale-select.is-ribbon optgroup{background:var(--bg-primary, #f5f5f5);color:var(--text-primary, #1a1a1a)}.gst-container{--gst-bg-deep: #0d1117;--gst-bg-base: #161b22;--gst-bg-surface: #1c2128;--gst-bg-elevated: #252c35;--gst-bg-hover: #2d333b;--gst-border: #30363d;--gst-border-subtle: #21262d;--gst-border-focus: #58a6ff;--gst-text-primary: #e6edf3;--gst-text-secondary: #8b949e;--gst-text-tertiary: #6e7681;--gst-text-muted: #484f58;--gst-accent-cyan: #00d4ff;--gst-accent-blue: #58a6ff;--gst-accent-green: #3fb950;--gst-accent-amber: #f5a623;--gst-accent-orange: #f0883e;--gst-accent-red: #f85149;--gst-accent-purple: #a371f7;--gst-accent-violet: #8b5cf6;--gst-equation: #58a6ff;--gst-variable: #3fb950;--gst-locked: #6e7681;--gst-changed: #f5a623;--gst-multi: #a371f7;--gst-connector: #30363d;--gst-connector-active: #58a6ff;--gst-radius-sm: 4px;--gst-radius-md: 6px;--gst-radius-lg: 8px;--gst-shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--gst-shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--gst-shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--gst-shadow-glow: 0 0 20px rgba(0, 212, 255, .15);--gst-font-mono: "JetBrains Mono", "Fira Code", "SF Mono", Consolas, monospace;--gst-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--gst-transition-fast: .15s ease;--gst-transition-normal: .25s 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var(--gsng-transition-fast)}.gsng-positioned-node:hover{z-index:10}.gsng-confirm-overlay{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.gsng-confirm-modal{width:90%;max-width:480px;max-height:80vh;background:var(--gsng-bg-elevated);border:1px solid var(--gsng-border);border-radius:8px;box-shadow:0 16px 48px #00000080;display:flex;flex-direction:column;overflow:hidden}.gsng-confirm-modal__header{display:flex;align-items:center;gap:8px;padding:12px 16px;background:var(--gsng-bg-darker);border-bottom:1px solid var(--gsng-border)}.gsng-confirm-modal__icon{width:24px;height:24px;display:flex;align-items:center;justify-content:center;background:#3fb95026;border-radius:50%;color:var(--gsng-success);font-size:14px;font-weight:700}.gsng-confirm-modal__title{flex:1;font-size:var(--gsng-font-md);font-weight:600;color:var(--gsng-text-primary)}.gsng-confirm-modal__close{padding:4px 8px;background:transparent;border:none;color:var(--gsng-text-muted);font-size:18px;cursor:pointer;border-radius:4px;transition:all var(--gsng-transition-fast)}.gsng-confirm-modal__close:hover{background:var(--gsng-bg-elevated);color:var(--gsng-text-primary)}.gsng-confirm-modal__body{flex:1;padding:16px;overflow-y:auto}.gsng-confirm-section{margin-bottom:16px}.gsng-confirm-section:last-child{margin-bottom:0}.gsng-confirm-section__title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--gsng-text-muted);padding-bottom:8px;border-bottom:1px solid var(--gsng-border-subtle);margin-bottom:8px}.gsng-confirm-section__list{display:flex;flex-direction:column;gap:6px}.gsng-confirm-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 10px;background:var(--gsng-bg-node);border-radius:4px;border:1px solid var(--gsng-border-subtle)}.gsng-confirm-item__info{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1}.gsng-confirm-item__name{font-weight:600;font-size:var(--gsng-font-sm);color:var(--gsng-text-primary)}.gsng-confirm-item__explanation{font-size:11px;color:var(--gsng-text-muted);font-style:italic;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.gsng-confirm-item__values{display:flex;align-items:baseline;gap:6px;font-family:var(--gsng-font-mono);font-size:13px}.gsng-confirm-item__old{color:var(--gsng-text-muted);text-decoration:line-through}.gsng-confirm-item__arrow{color:var(--gsng-text-dim);font-size:12px}.gsng-confirm-item__new{color:var(--gsng-success);font-weight:600}.gsng-confirm-item__unit{color:var(--gsng-text-secondary);font-size:11px}.gsng-confirm-empty{padding:24px;text-align:center;color:var(--gsng-text-muted);font-style:italic}.gsng-confirm-modal__footer{display:flex;justify-content:flex-end;gap:10px;padding:12px 16px;background:var(--gsng-bg-darker);border-top:1px solid var(--gsng-border)}.formula-helper-container{position:fixed;background:var(--bg-secondary, white);border:1px solid var(--border-color, #ccc);box-shadow:0 4px 12px #00000026;border-radius:4px;z-index:9999;font-family:var(--font-sans, system-ui, sans-serif);font-size:13px;min-width:250px;max-width:400px;pointer-events:none;pointer-events:auto;color:var(--text-primary, #333)}.fh-suggestions{list-style:none;padding:0;margin:0;max-height:200px;overflow-y:auto}.fh-suggestion-item{padding:6px 12px;cursor:pointer;display:flex;justify-content:space-between;align-items:center}.fh-suggestion-item:hover,.fh-suggestion-item.selected{background-color:var(--bg-hover, #e0e0e0)}.fh-suggestion-name{font-weight:600;color:var(--text-primary, #2c3e50)}.fh-suggestion-category{font-size:11px;color:var(--text-secondary, #555);background:var(--bg-tertiary, #e0e0e0);padding:2px 6px;border-radius:10px}.fh-signature{padding:8px 12px}.fh-sig-header{margin-bottom:6px;color:var(--text-primary, #333);line-height:1.4}.fh-sig-name{font-weight:700;color:var(--accent-blue, #2980b9)}.fh-param{color:var(--text-secondary, #555);padding:0 1px}.fh-param.active{font-weight:700;color:#1a1a1a;background-color:var(--accent-yellow-bg, #ffeaa7);border-radius:2px;text-decoration:underline}.fh-sig-desc{border-top:1px solid var(--border-subtle, #ccc);padding-top:6px;color:var(--text-secondary, #555);font-size:12px;line-height:1.4}.fh-param-desc{margin-top:4px;color:var(--text-primary, #2c3e50);font-style:italic}