:root{color-scheme:light;--bg: #ffffff;--surface: #ffffff;--surface-2: #f4f3ef;--border: #d8d4cc;--border-strong: #232529;--text: #1f2024;--text-muted: #6b6e76;--accent: #5b6dff;--accent-2: #4253e8;--warning: #c08400;--danger: #c0392b;--grid: #ebe9e3;--shape-fill: #ffffff;--shape-stroke: #000000;--shape-stroke-soft: #000000;font-family:Virgil,Comic Sans MS,-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;color:var(--text);background:var(--bg)}*{box-sizing:border-box}html,body,#app{margin:0;padding:0;height:100%;overflow:hidden}#app{display:grid;grid-template-rows:auto auto 1fr}.toolbar{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--surface);border-bottom:1px solid var(--border);font-size:13px;box-shadow:0 1px #00000008}.toolbar button{background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 10px;font-size:13px;cursor:pointer;transition:border-color 80ms ease,background 80ms ease}.toolbar button:hover{border-color:var(--border-strong)}.toolbar button[aria-pressed=true]{border-color:var(--accent);background:#5b6dff1f;color:var(--accent-2)}.toolbar .spacer{flex:1}.tool-group{display:inline-flex;gap:4px;padding:2px;background:var(--surface-2);border:1px solid var(--border);border-radius:8px}.tool-group .tool-btn{border:1px solid transparent;background:transparent;border-radius:6px;padding:5px 10px}.tool-group .tool-btn:hover{background:var(--surface);border-color:var(--border)}.tool-group .tool-btn:disabled,.tool-group .tool-btn:disabled:hover{opacity:.35;background:transparent;border-color:transparent;cursor:default}.tool-group .tool-btn[aria-pressed=true]{background:var(--surface);border-color:var(--accent);color:var(--accent-2);box-shadow:0 1px 2px #0000000f}.filter-pill{background:#d0992226;color:var(--warning);border:1px solid rgba(208,153,34,.5);border-radius:999px;padding:3px 10px;font:inherit;font-size:12px;cursor:pointer}.filter-pill:hover{background:#d0992240}.canvas-host{position:relative;overflow:hidden;background:var(--bg)}.canvas-svg{width:100%;height:100%;display:block;cursor:grab;user-select:none;-webkit-user-select:none}.canvas-svg.grabbing{cursor:grabbing}.canvas-svg.draw-mode,.canvas-svg.arrow-mode{cursor:crosshair}.node{cursor:grab}.node.dragging{cursor:grabbing}.node-body{fill:var(--shape-fill);stroke:var(--shape-stroke);stroke-width:2.25;stroke-linecap:round;stroke-linejoin:round;filter:url(#marker-ink) drop-shadow(0 1px 1px rgba(0,0,0,.04))}.node.selected .node-body{stroke:var(--accent);stroke-width:2.75}.node.pending.selected .node-body{stroke:var(--accent)}.node.connect-source .node-body{stroke:var(--accent);stroke-width:2.75}.node.snap-target .node-body{stroke:var(--accent);stroke-width:2.75;fill:#5b6dff14}.node-title{fill:var(--text);font-size:14px;font-weight:600;pointer-events:none}.node-kind{fill:var(--text-muted);font-size:11px;font-style:italic;pointer-events:none}.node.shape-text .node-text-hit{fill:transparent;pointer-events:all;cursor:pointer}.node .node-text-label{fill:var(--text);font-weight:600;pointer-events:none}.node .node-text-desc{fill:var(--text-muted);pointer-events:none}.node.dimmed .node-text-label,.node.dimmed .node-text-desc{fill:#9b988f}.node .connector-line{stroke:var(--shape-stroke);stroke-width:2;fill:none;pointer-events:none}.node .connector-hit{stroke:transparent;stroke-width:14;fill:none;cursor:pointer}.node.shape-line.selected .connector-line,.node.shape-arrow.selected .connector-line{stroke:var(--accent);stroke-width:2.5}.node.dimmed .connector-line{stroke:#9b988f}.node-title-top{font-size:13px}.step-fn-rule{stroke:var(--border);stroke-width:1}.node.kind-step-function 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.action-pill-rect{stroke:var(--warning);stroke-width:1.5;fill:#d099222e}.action-pill-label{fill:var(--text);font-size:11px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;pointer-events:none;user-select:none}.action-pill-more{fill:var(--text-muted);font-size:10px;font-style:italic;text-anchor:middle;user-select:none}.node.dimmed .action-pill-more{fill:#b6b3a8}.edge{cursor:pointer}.edge-hit{stroke:transparent;stroke-width:14;fill:none}.edge-line{stroke:var(--shape-stroke);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;fill:none;pointer-events:none;filter:url(#marker-ink)}.edge.selected .edge-line{stroke:var(--accent);stroke-width:2.5}.edge-pending-line{stroke:var(--accent);stroke-width:2;stroke-dasharray:4 3;pointer-events:none}.edge-label{fill:var(--text-muted);font-size:11px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;pointer-events:none;user-select:none}.edge.selected .edge-label{fill:var(--accent)}.edge.pending 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.relational{font-size:12px;color:var(--text-muted)}.relational-heading{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:4px}.relational-empty{color:var(--text-muted);padding:2px 0}.relational-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px}.relational-list.actions-scroll{max-height:170px;overflow-y:auto;padding-right:4px}.relational-row{display:flex;align-items:center;gap:6px;padding:2px 0}.relational-arrow{color:var(--text-muted);font-size:12px;user-select:none}.relational-edge,.relational-node{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:2px 8px;font:inherit;font-size:12px;cursor:pointer}.relational-edge{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--text-muted)}.relational-edge:hover,.relational-node:hover{border-color:var(--accent);color:var(--text)}.flyout-connect-row{display:flex;justify-content:flex-start;margin:-4px 0 4px}.flyout-connect-row button{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:5px 10px;font:inherit;font-size:12px;cursor:pointer}.flyout-connect-row button:hover{border-color:var(--accent)}.endpoint-row{display:flex;align-items:center;gap:8px;padding:2px 0}.endpoint-label{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);min-width:36px}.edge-heading{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.actions-heading{display:flex;align-items:center;justify-content:space-between;gap:8px}.section-action{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:2px 8px;font:inherit;font-size:11px;cursor:pointer}.section-action:hover{border-color:var(--accent)}.section-action[aria-pressed=true]{background:#d0992233;color:var(--warning);border-color:#d0992299}.section-action.danger{color:var(--text-muted)}.section-action.danger:hover{color:var(--danger);border-color:var(--danger)}.action-row{display:flex;align-items:center;gap:6px}.action-name{flex:1;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:4px 8px;font:inherit;font-size:12px}.action-ref-row{display:flex;align-items:center;gap:8px;padding:2px 0;font-size:12px;color:var(--text)}.action-ref-row 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var(--border);background:var(--surface)}.agent-panel.collapsed .agent-panel-header{display:none}.agent-panel-title{flex:1;font-weight:600;font-size:13px}.agent-panel-toggle{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:2px 8px;cursor:pointer;font:inherit;font-size:11px}.agent-panel-toggle:hover{border-color:var(--accent)}.agent-panel-collapse{padding:2px 10px;font-size:14px;line-height:1}.agent-panel-expand{display:none;width:100%;flex:1;align-items:center;justify-content:center;background:var(--surface);color:var(--text);border:none;border-left:1px solid var(--border);font:inherit;font-size:12px;letter-spacing:.08em;text-transform:uppercase;cursor:pointer;writing-mode:vertical-rl;text-orientation:mixed;padding:12px 0}.agent-panel-expand:hover{background:var(--surface-2);color:var(--accent-2)}.agent-panel.collapsed .agent-panel-body,.agent-panel.collapsed .agent-key-row,.agent-panel.collapsed 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12px;display:flex;flex-direction:column;gap:8px;min-height:0}.agent-panel.collapsed .agent-tabs,.agent-panel.collapsed .agent-composer{display:none}.agent-tabs{display:flex;gap:0;padding:0 12px;border-bottom:1px solid var(--border)}.agent-tab{background:transparent;border:none;border-bottom:2px solid transparent;color:var(--text-muted);font:inherit;font-size:12px;padding:6px 10px;cursor:pointer}.agent-tab:hover{color:var(--text)}.agent-tab[aria-pressed=true]{color:var(--accent-2);border-bottom-color:var(--accent)}.folder-row{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--surface-2);border-bottom:1px solid var(--border);font-size:11px;flex-shrink:0}.folder-row.connected{background:#2ea04314;color:#1f883d}.folder-status{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.folder-btn{background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:4px 10px;font:inherit;font-size:11px;cursor:pointer;flex-shrink:0}.folder-btn:hover:not(:disabled){border-color:var(--accent)}.folder-btn:disabled{opacity:.6;cursor:not-allowed}.folder-save-btn{background:var(--accent, #5b6dff);color:#fff;border:1px solid var(--accent, #5b6dff);border-radius:6px;padding:4px 10px;font:inherit;font-size:11px;cursor:pointer;flex-shrink:0}.folder-save-btn:hover:not(:disabled){filter:brightness(1.05)}.folder-save-btn:disabled{opacity:.7;cursor:default}.files-body{padding:0;flex-direction:column;gap:0}.files-body .file-list{flex:1;min-height:0;overflow:auto;display:flex;flex-direction:column;align-items:stretch}.files-body .file-row,.files-body .file-dir-row{flex:0 0 auto;width:max-content;min-width:100%;box-sizing:border-box;white-space:nowrap;overflow:visible}.files-body .file-row{background:transparent;border:none;border-bottom:1px solid var(--border);text-align:left;padding:6px 10px;font:inherit;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;color:var(--text);cursor:pointer}.files-body .file-row:hover{background:var(--surface-2)}.files-body .file-row.selected{background:#5b6dff1a;color:var(--accent-2)}.files-body .file-row-linked,.files-body .file-dir-row-linked{background:#5b6dff14;box-shadow:inset 2px 0 0 var(--accent)}.files-body .file-dir-row-linked{color:var(--text)}.files-body .file-row-entry{background:#f59e0b29;box-shadow:inset 3px 0 #f59e0b;color:var(--text)}.files-body .file-dir-row{display:flex;align-items:center;gap:4px;background:transparent;border:none;border-bottom:1px solid var(--border);text-align:left;padding:6px 10px;font:inherit;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;color:var(--text-muted);cursor:pointer}.files-body .file-dir-row:hover{background:var(--surface-2)}.files-body .file-tree-caret{display:inline-block;width:10px;flex:0 0 auto;color:var(--text-muted);font-size:9px}.file-reader{position:absolute;top:0;bottom:0;right:var(--agent-panel-width, 380px);width:min(520px,42vw);display:none;flex-direction:column;background:var(--surface);border-left:1px solid var(--border);border-right:1px solid var(--border);box-shadow:-8px 0 24px #0000001f;z-index:6}.file-reader.open{display:flex}.file-reader-header{display:flex;align-items:center;gap:8px;padding:6px 10px;border-bottom:1px solid var(--border);background:var(--surface);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;color:var(--text-muted);flex-shrink:0}.file-reader-path{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;direction:rtl;text-align:left}.file-reader-close{flex:0 0 auto;background:var(--surface-2);color:var(--text-muted);border:1px solid var(--border);border-radius:6px;padding:2px 8px;font:inherit;font-size:12px;line-height:1;cursor:pointer}.file-reader-close:hover{color:var(--text);border-color:var(--accent)}.file-viewer{flex:1;margin:0;padding:8px 10px;overflow:auto;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;line-height:1.5;white-space:pre;color:var(--text);background:var(--bg)}.file-viewer .code-line{display:block}.file-viewer .code-line-hl{background:#5b6dff29;box-shadow:inset 3px 0 0 var(--accent)}.agent-composer{display:flex;gap:6px;padding:8px 12px;border-top:1px solid var(--border);background:var(--surface)}.agent-chat-input{flex:1;resize:vertical;min-height:36px;max-height:160px;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 8px;font:inherit;font-size:12px}.agent-chat-input:focus{outline:none;border-color:var(--accent)}.agent-chat-send{align-self:flex-end;background:var(--accent-2);color:#fff;border:1px solid var(--accent-2);border-radius:6px;padding:6px 12px;font:inherit;font-size:12px;cursor:pointer}.agent-chat-send:disabled{background:var(--surface-2);color:var(--text-muted);border-color:var(--border);cursor:default}.preview-backdrop{position:fixed;inset:0;background:#00000073;z-index:1000;display:flex;align-items:center;justify-content:center;padding:32px}.preview-dialog{background:var(--surface);border:1px solid var(--border);border-radius:10px;width:min(900px,100%);max-height:100%;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 20px 50px #0000002e}.choice-dialog{width:min(440px,100%);padding:20px;gap:14px}.choice-dialog .preview-title{font-size:16px}.choice-body{margin:0;font-size:13px;line-height:1.5;color:var(--text-muted)}.choice-actions{display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap}.choice-actions button{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 12px;font:inherit;font-size:12px;cursor:pointer}.choice-actions button:hover{border-color:var(--accent)}.choice-actions button.primary{background:var(--accent, #5b6dff);color:#fff;border-color:var(--accent, #5b6dff)}.preview-header{display:flex;align-items:center;gap:8px;padding:10px 16px;border-bottom:1px solid var(--border)}.preview-title{flex:1;margin:0;font-size:15px;font-weight:600}.preview-close{background:var(--surface-2);border:1px solid var(--border);border-radius:6px;padding:2px 10px;font:inherit;cursor:pointer}.preview-subtitle{padding:6px 16px 0;color:var(--text-muted);font-size:12px}.preview-content{padding:12px 16px 16px;overflow-y:auto;display:flex;flex-direction:column;gap:16px}.preview-section h3{margin:0 0 4px;font-size:13px;font-weight:600}.preview-note{font-size:11px;color:var(--text-muted);margin-bottom:4px}.preview-pre{margin:0;background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:8px 10px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;line-height:1.5;white-space:pre-wrap;word-break:break-word;max-height:320px;overflow:auto}.toolbar .preview-btn{background:var(--surface);border:1px solid var(--border)}.toolbar .preview-btn:hover{border-color:var(--accent);color:var(--accent-2)}.toolbar .regen-ladder-btn{background:var(--accent-2);border:1px solid var(--accent-2);color:#fff;font-weight:600}.toolbar .regen-ladder-btn:hover:not(:disabled){background:var(--accent);border-color:var(--accent)}.toolbar .regen-ladder-btn:disabled{background:var(--surface-2);color:var(--text-muted);border-color:var(--border);cursor:default;font-weight:400}.toolbar .project-btn{background:var(--surface);border:1px solid var(--border)}.toolbar .project-btn:hover{border-color:var(--accent);color:var(--accent-2)}.toolbar .project-btn.has-content{border-color:var(--accent);color:var(--accent-2);background:#5b6dff0f}.project-flyout{position:absolute;top:0;bottom:0;left:0;width:360px;max-width:360px;background:var(--surface);border-right:1px solid var(--border);padding:16px;display:flex;flex-direction:column;gap:12px;box-shadow:4px 0 14px #0000000a;z-index:5;overflow:hidden;box-sizing:border-box}.project-flyout-header{display:flex;align-items:center;gap:8px}.project-flyout-title{flex:1;margin:0;font-size:14px;font-weight:600}.project-flyout-section{flex:0 0 auto;margin-top:16px;padding-top:14px;border-top:1px solid var(--border)}.project-flyout-close{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:2px 10px;font:inherit;cursor:pointer}.project-flyout-close:hover{border-color:var(--accent)}.project-flyout-subtitle{font-size:12px;color:var(--text-muted);line-height:1.4}.project-flyout-textarea{flex:1;width:100%;min-width:0;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:8px 10px;font:inherit;font-size:13px;line-height:1.5;resize:none}.project-flyout-textarea:focus{outline:none;border-color:var(--accent)}.agent-log-entry{border:1px solid var(--border);border-radius:6px;padding:6px 8px;background:var(--surface-2)}.agent-log-meta{font-size:10px;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:4px;display:flex;gap:6px}.agent-log-content{white-space:pre-wrap;word-break:break-word;font-size:12px;line-height:1.4;color:var(--text)}.agent-log-content code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;background:var(--bg);padding:1px 4px;border-radius:3px}.agent-log-entry.assistant_text{border-color:#58a6ff66}.agent-log-entry.user_chat{border-color:#5b6dff66;background:#5b6dff0f}.agent-log-entry.tool_request{border-color:#d0992266}.agent-log-entry.tool_result.error{border-color:#c0392b66}.agent-log-entry.error{border-color:#c0392b80;color:var(--danger)}.agent-log-empty{color:var(--text-muted);font-style:italic;padding:8px 0;text-align:center}.flyout{right:var(--agent-panel-width, 380px);transition:right .12s ease}.toolbar .view-group{margin-right:4px}#app.view-ladder .toolbar>.tool-group:not(.view-group):not(.history-group){display:none}#app.view-ladder .toolbar .filter-pill,#app.view-ladder .toolbar .preview-btn,#app.view-ladder .toolbar .new-btn{display:none}#app.view-ladder .canvas-host>.canvas-svg{display:none}#app.view-preview .toolbar>.tool-group:not(.view-group):not(.history-group){display:none}#app.view-preview .toolbar .filter-pill,#app.view-preview .toolbar .preview-btn,#app.view-preview .toolbar .new-btn{display:none}#app.view-preview .canvas-host>.canvas-svg{display:none}#app.view-preview .flyout,#app.view-preview .project-flyout,#app.view-preview .action-picker{display:none!important}.preview-view{position:absolute;inset:0;display:flex;flex-direction:column;background:var(--surface, #fff);z-index:5}.preview-view-bar{display:flex;align-items:center;gap:8px;padding:8px 12px;border-bottom:1px solid var(--border);background:var(--surface-2, #f6f6f4);flex:0 0 auto}.preview-view-label{font-size:12px;color:var(--text-muted)}.preview-view-select{font:inherit;font-size:12px;padding:3px 6px;border:1px solid var(--border);border-radius:6px;background:var(--surface, #fff);max-width:50%}.preview-view-refresh{font:inherit;font-size:12px;padding:4px 10px;border:1px solid var(--border);border-radius:6px;background:var(--surface, #fff);cursor:pointer}.preview-view-refresh:hover{border-color:var(--accent)}.preview-mode-group{display:inline-flex;border:1px solid var(--border);border-radius:6px;overflow:hidden}.preview-mode-btn{font:inherit;font-size:12px;padding:3px 10px;border:none;background:var(--surface, #fff);color:var(--text);cursor:pointer}.preview-mode-btn[aria-pressed=true]{background:var(--accent, #5b6dff);color:#fff}.preview-status-line{font-size:11px;color:var(--text-muted);margin-left:auto;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.preview-logs{flex:0 0 auto;max-height:150px;overflow:auto;margin:0;padding:8px 12px;border-top:1px solid var(--border);background:#1e1e1e;color:#d4d4d4;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;line-height:1.45;white-space:pre-wrap;word-break:break-word}.preview-view-frame{flex:1 1 auto;position:relative;overflow:hidden}.preview-iframe{width:100%;height:100%;border:none;background:#fff}.preview-view-empty{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center;padding:32px;color:var(--text-muted);pointer-events:none}.preview-view-empty .hint{font-size:12px;max-width:420px;line-height:1.5}.ladder-view{position:absolute;top:0;bottom:0;left:0;right:var(--agent-panel-width, 380px);background:var(--bg);overflow:auto;z-index:1}.ladder-svg{display:block;margin:24px auto;user-select:none;-webkit-user-select:none}.ladder-empty{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;padding:24px}.ladder-empty p{max-width:420px;margin:0;color:var(--text-muted);font-size:13px;line-height:1.5}.ladder-generate-btn{background:var(--accent-2);color:#fff;border:1px solid var(--accent-2);border-radius:8px;padding:10px 16px;font:inherit;font-size:13px;font-weight:600;cursor:pointer}.ladder-generate-btn:hover{background:var(--accent);border-color:var(--accent)}.ladder-generate-btn:disabled{background:var(--surface-2);color:var(--text-muted);border-color:var(--border);cursor:default}.ladder-lifeline{stroke:var(--text-muted);stroke-width:1.25;stroke-dasharray:5 4;opacity:.55}.ladder-participant{cursor:grab}.ladder-participant-bg{fill:var(--surface);stroke:var(--shape-stroke);stroke-width:1.5}.ladder-participant-label{fill:var(--text);font-size:13px;font-weight:600}.ladder-step{cursor:pointer}.ladder-step-line{stroke:var(--shape-stroke);stroke-width:1.6;stroke-linecap:round;fill:none}.ladder-step.kind-async .ladder-step-line,.ladder-step.kind-return .ladder-step-line{stroke-width:1.4}.ladder-step.selected .ladder-step-line{stroke:var(--accent)}.ladder-step-hit{stroke:transparent;stroke-width:16;fill:none}.ladder-step-label{fill:var(--text);font-size:12px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;pointer-events:none}.ladder-step.selected .ladder-step-label{fill:var(--accent-2)}.ladder-step-editor{display:flex;align-items:center;gap:4px;background:var(--surface);border:1px solid var(--accent);border-radius:6px;padding:4px 6px;box-shadow:0 4px 14px #00000014}.ladder-step-editor-label{flex:1;min-width:0;background:transparent;border:none;padding:4px 6px;font:inherit;font-size:12px;color:var(--text);outline:none}.ladder-step-editor-kind{background:var(--surface-2);border:1px solid var(--border);border-radius:4px;padding:2px 4px;font:inherit;font-size:11px}.ladder-step-editor-delete{background:transparent;border:1px solid transparent;border-radius:4px;padding:2px 6px;font:inherit;font-size:12px;color:var(--text-muted);cursor:pointer}.ladder-step-editor-delete:hover{color:var(--danger);border-color:var(--danger)}.ladder-add-step{cursor:pointer}.ladder-add-circle{fill:var(--surface);stroke:var(--text-muted);stroke-width:1.5;stroke-dasharray:3 3}.ladder-add-step:hover .ladder-add-circle{stroke:var(--accent);stroke-dasharray:none}.ladder-add-text{fill:var(--text-muted);font-size:16px;font-weight:600;pointer-events:none}.ladder-add-step:hover .ladder-add-text{fill:var(--accent)}.agent-provider-row{padding:8px 12px 0}.agent-provider-group{width:100%}.agent-provider-group .tool-btn{flex:1}.agent-bedrock-row{display:flex;align-items:center;gap:8px;padding:6px 12px 8px;font-size:11px;color:var(--text-muted);border-bottom:1px solid var(--border)}.agent-bedrock-row.ok{color:#1f883d}.agent-bedrock-row.error{color:var(--danger)}.agent-bedrock-recheck{flex:0 0 auto;font-size:11px;padding:2px 8px;border:1px solid var(--border);border-radius:4px;background:var(--surface, #fff);color:var(--text, inherit);cursor:pointer}.agent-bedrock-recheck:hover{background:var(--border)}.agent-mode-row{display:flex;flex-direction:column;gap:4px;padding:8px 12px;border-bottom:1px solid var(--border)}.agent-mode-group{width:100%}.agent-mode-group .tool-btn{flex:1}.agent-mode-hint{font-size:11px;color:var(--text-muted)}.agent-panel.collapsed .agent-provider-row,.agent-panel.collapsed .agent-bedrock-row,.agent-panel.collapsed .agent-ada-row,.agent-panel.collapsed .agent-mode-row{display:none}.agent-ada-row{padding:6px 12px 0;display:flex;flex-direction:column;gap:4px}.agent-ada-title{display:flex;align-items:center;gap:5px;width:100%;background:transparent;border:none;padding:0;font:inherit;font-size:11px;color:var(--text-muted);cursor:pointer;text-align:left}.agent-ada-title:hover{color:var(--text)}.agent-ada-caret{display:inline-block;width:9px;font-size:9px}.agent-ada-form{display:flex;flex-wrap:wrap;gap:4px}.agent-ada-form input,.agent-ada-form select{background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:4px 6px;font:inherit;font-size:11px}.agent-ada-account{width:120px}.agent-ada-role,.agent-ada-role-select{flex:1;min-width:120px}.agent-ada-signin{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:4px 10px;font:inherit;font-size:11px;cursor:pointer}.agent-ada-signin:hover:not(:disabled){border-color:var(--accent)}.agent-ada-signin:disabled{opacity:.6;cursor:default}.agent-ada-status{font-size:11px;color:var(--text-muted);white-space:pre-wrap}.agent-ada-status.error{color:var(--danger)}.agent-ada-status.warn{color:var(--warning, #b8860b)}.action-picker{position:absolute;top:16px;left:16px;width:240px;max-height:calc(100% - 32px);background:var(--surface);border:1px solid var(--border);border-radius:8px;display:flex;flex-direction:column;font-size:12px;z-index:4;box-shadow:0 4px 14px #0000000f;overflow:hidden}.action-picker-header{display:flex;align-items:center;padding:8px 12px;border-bottom:1px solid var(--border)}.action-picker-title{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted)}.action-picker-list{flex:1;overflow-y:auto;padding:4px 0}.action-picker-row{display:flex;align-items:center;gap:4px;padding:6px 12px;cursor:pointer;border-left:3px solid transparent}.action-picker-row:hover{background:var(--surface-2)}.action-picker-row.active{background:#5b6dff14;border-left-color:var(--accent)}.action-picker-row-main{flex:1;display:flex;flex-direction:column;gap:1px;min-width:0}.action-picker-label{font-size:12px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.action-picker-row.active .action-picker-label{color:var(--accent-2);font-weight:600}.action-picker-sub{font-size:10px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.action-picker-edit{background:transparent;border:none;padding:2px 6px;font:inherit;font-size:12px;color:var(--text-muted);cursor:pointer;border-radius:4px;flex-shrink:0}.action-picker-edit:hover{background:var(--surface);color:var(--accent-2)}.action-picker-group{display:flex;align-items:center;justify-content:space-between;padding:8px 12px 4px;border-top:1px solid var(--border);margin-top:4px}.action-picker-group:first-of-type,.action-picker-group-routes+.action-picker-group{border-top:1px solid var(--border)}.action-picker-group-routes.scroll{max-height:170px;overflow-y:auto}.action-picker-group-title{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em}.action-picker-add{background:transparent;border:1px solid var(--border);border-radius:4px;padding:2px 6px;font:inherit;font-size:10px;color:var(--text-muted);cursor:pointer}.action-picker-add:hover{border-color:var(--accent);color:var(--accent-2)}.action-picker-group-empty{padding:4px 12px 8px;color:var(--text-muted);font-size:11px;font-style:italic}.action-picker-empty{padding:12px;font-size:11px;color:var(--text-muted);line-height:1.4}#app.view-ladder .action-picker{display:none}.flyout textarea.schema-textarea{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;line-height:1.5}.flyout .custom-type-row{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--text-muted)}.edge-binding-mode-row{display:flex;flex-direction:column;gap:4px;padding:4px 0}.edge-binding-mode{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text);cursor:pointer}.edge-binding-mode input[type=radio]{accent-color:var(--accent)}.edge-binding-actions{margin-top:4px}.edge-binding-actions-disabled{opacity:.55}.action-ref-sub{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:10px;color:var(--text-muted);margin-left:6px}.whiteboard-bar{display:flex;align-items:stretch;gap:4px;padding:4px 8px;background:var(--surface-2);border-bottom:1px solid var(--border);overflow-x:auto;scrollbar-width:thin}.whiteboard-tab{display:inline-flex;align-items:center;gap:2px;padding:2px 2px 2px 4px;border:1px solid var(--border);border-radius:6px;background:var(--surface);white-space:nowrap}.whiteboard-tab[aria-pressed=true]{border-color:var(--accent);background:#5b6dff1f}.whiteboard-tab-label{background:transparent;border:none;color:var(--text);font:inherit;padding:2px 6px;cursor:pointer;max-width:220px;overflow:hidden;text-overflow:ellipsis}.whiteboard-tab[aria-pressed=true] .whiteboard-tab-label{color:var(--accent-2)}.whiteboard-tab-close{background:transparent;border:none;color:var(--text-muted);font-size:14px;line-height:1;padding:2px 6px;border-radius:4px;cursor:pointer}.whiteboard-tab-close:hover{color:var(--text);background:var(--surface-2)}.whiteboard-tab-add{background:var(--surface);border:1px dashed var(--border-strong);border-radius:6px;color:var(--text-muted);font-size:16px;line-height:1;padding:0 10px;cursor:pointer}.whiteboard-tab-add:hover{color:var(--accent-2);border-color:var(--accent)}.flyout-spec-row{margin:8px 0 4px}.flyout-spec-row .spec-btn{width:100%;padding:8px 10px;background:var(--accent-2);border:1px solid var(--accent-2);color:#fff;border-radius:6px;cursor:pointer}.flyout-spec-row .spec-btn:hover{background:var(--accent);border-color:var(--accent)}.whiteboard-tab-badge{display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;margin-left:4px;border-radius:4px;background:var(--text-muted);color:#fff;font-size:11px;font-weight:700;line-height:1}.whiteboard-tab-architecture .whiteboard-tab-badge{background:var(--accent)}.whiteboard-tab-uimock .whiteboard-tab-badge{background:#2e9e6b}.whiteboard-tab-freeform .whiteboard-tab-badge{background:#b5793a}.whiteboard-tab-ladder .whiteboard-tab-badge{background:#8a63d2}.whiteboard-tab-stepfunction .whiteboard-tab-badge{background:var(--accent-2);font-style:italic}.whiteboard-tab-stepfunction[aria-pressed=true]{border-color:var(--accent-2)}.type-options{display:flex;flex-direction:column;gap:8px;margin-top:8px}.type-option{display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text);cursor:pointer}.type-option:hover:not(:disabled){border-color:var(--accent);background:#5b6dff14}.type-option:disabled{opacity:.5;cursor:not-allowed}.type-option-label{font-weight:600}.type-option-hint{font-size:12px;color:var(--text-muted)}.toolbar .tool-btn[data-mode=draw_text],.toolbar .tool-btn[data-mode=draw_line],.toolbar .tool-btn[data-mode=draw_arrow]{display:none}#app.board-freeform .toolbar .tool-btn[data-mode=draw_text],#app.board-freeform .toolbar .tool-btn[data-mode=draw_line],#app.board-freeform .toolbar .tool-btn[data-mode=draw_arrow]{display:inline-block}#app.board-freeform .toolbar .tool-btn[data-mode=arrow],#app.board-uimock .toolbar .tool-btn[data-mode=arrow]{display:none}.page-bar{display:none;position:absolute;top:16px;left:16px;width:240px;max-height:calc(100% - 32px);background:var(--surface);border:1px solid var(--border);border-radius:8px;flex-direction:column;font-size:12px;z-index:4;box-shadow:0 4px 14px #0000000f;overflow:hidden}#app.board-uimock .page-bar,#app.board-freeform .page-bar{display:flex}#app.board-uimock .action-picker,#app.board-freeform .action-picker{display:none}.page-bar-header{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-bottom:1px solid var(--border)}.page-bar-title{font-size:12px;font-weight:600;color:var(--text)}.page-bar-add{background:transparent;border:1px solid var(--border);border-radius:6px;color:var(--text);font:inherit;font-size:11px;padding:2px 8px;cursor:pointer}.page-bar-add:hover{border-color:var(--accent);color:var(--accent-2)}.page-bar-list{flex:1;overflow-y:auto;padding:4px 0}.page-row{display:flex;align-items:center;padding:6px 12px;border-left:2px solid transparent;cursor:pointer}.page-row:hover{background:var(--surface-2)}.page-row.active{background:#5b6dff14;border-left-color:var(--accent)}.page-row-label{flex:1;text-align:left;background:transparent;border:none;color:var(--text);font:inherit;font-size:12px;padding:0;cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.page-row.active .page-row-label{color:var(--accent-2);font-weight:600}.page-row-close{background:transparent;border:none;color:var(--text-muted);font-size:14px;line-height:1;padding:2px 6px;border-radius:4px;cursor:pointer}.page-row-close:hover{color:var(--text);background:var(--surface)}.color-row{position:relative;display:flex;flex-direction:column;gap:6px}.color-trigger{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 8px;font:inherit;font-size:12px;cursor:pointer}.color-trigger:hover{border-color:var(--accent)}.color-trigger-label{color:var(--text-muted)}.color-trigger-swatch{flex:0 0 auto;width:24px;height:16px;border-radius:4px;border:1px solid var(--border-strong);background:var(--bg)}.color-trigger-swatch.is-default{background:linear-gradient(135deg,transparent 44%,var(--text-muted) 44%,var(--text-muted) 56%,transparent 56%),var(--bg)}.color-popup{display:none;position:absolute;top:calc(100% + 4px);left:0;right:0;z-index:20;flex-direction:column;gap:8px;padding:8px;background:var(--surface);border:1px solid var(--border);border-radius:8px;box-shadow:0 8px 24px #0000002e}.color-popup.open{display:flex}.color-chips{display:flex;flex-wrap:wrap;align-items:center;gap:6px;min-height:22px}.color-none{font-size:12px;color:var(--text-muted)}.color-chip{width:24px;height:22px;border-radius:6px;border:1px solid var(--border-strong);cursor:pointer;padding:0}.color-chip:hover{outline:2px solid var(--danger, #e5484d);outline-offset:1px}.color-controls{display:flex;align-items:center;gap:6px}.color-input{width:36px;height:26px;padding:0;border:1px solid var(--border);border-radius:6px;background:var(--surface);cursor:pointer}.color-add,.color-clear{padding:4px 10px;border:1px solid var(--border);border-radius:6px;background:var(--surface);color:var(--text);cursor:pointer}.color-add:hover,.color-clear:hover{border-color:var(--accent)}.color-presets{display:flex;flex-wrap:wrap;gap:6px}.color-swatch{width:20px;height:20px;border-radius:5px;border:1px solid var(--border-strong);cursor:pointer;padding:0}.color-swatch:hover{border-color:var(--accent)}.flyout-arrange{display:flex;align-items:center;gap:6px;margin:4px 0}.flyout-arrange-label{font-size:12px;color:var(--text-muted);margin-right:2px}.arrange-btn{width:30px;height:28px;border:1px solid var(--border);border-radius:6px;background:var(--surface);color:var(--text);font-size:14px;cursor:pointer}.arrange-btn:hover{border-color:var(--accent);color:var(--accent-2)}.zoom-controls{position:absolute;bottom:16px;left:16px;z-index:5;display:flex;gap:2px;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:4px;box-shadow:0 4px 14px #0000000f}.zoom-btn{min-width:30px;height:28px;padding:0 8px;border:none;background:transparent;color:var(--text);border-radius:6px;cursor:pointer;font:inherit;font-size:14px;line-height:1}.zoom-btn:hover{background:var(--surface-2);color:var(--accent-2)}.zoom-label{min-width:52px;font-size:12px;font-variant-numeric:tabular-nums}#app.view-ladder .zoom-controls,#app.view-preview .zoom-controls{display:none}.help-btn{font-weight:600}.shortcuts-backdrop{position:fixed;inset:0;background:#00000073;z-index:1100;display:none;align-items:center;justify-content:center;padding:32px}.shortcuts-backdrop.open{display:flex}.shortcuts-panel{background:var(--surface);border:1px solid var(--border);border-radius:10px;width:min(680px,100%);max-height:100%;overflow:auto;box-shadow:0 12px 40px #0000003d}.shortcuts-header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border)}.shortcuts-header h2{margin:0;font-size:15px}.shortcuts-close{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:2px 9px;font-size:13px;line-height:1;cursor:pointer}.shortcuts-close:hover{border-color:var(--accent)}.shortcuts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;padding:18px}.shortcuts-group h3{margin:0 0 8px;font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted)}.shortcuts-row{display:flex;align-items:center;gap:10px;padding:4px 0}.shortcuts-keys{display:inline-flex;gap:3px;flex:0 0 auto;min-width:84px}.shortcuts-keys kbd{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;line-height:1;padding:3px 6px;background:var(--surface-2);border:1px solid var(--border);border-radius:5px;color:var(--text)}.shortcuts-label{font-size:12px;color:var(--text)}#app.readonly{grid-template-rows:auto 1fr}.readonly .toolbar,.readonly .agent-panel,.readonly .whiteboard-tab-add,.readonly .whiteboard-tab-close,.readonly .page-bar-add,.readonly .page-row-close,.readonly .action-picker-add,.readonly .action-picker-edit{display:none!important}.readonly .flyout{right:0}.readonly .flyout-actions,.readonly .flyout .color-row,.readonly .flyout .flyout-spec-row,.readonly .flyout .flyout-arrange,.readonly .flyout .custom-type-row{display:none!important}.readonly .flyout input,.readonly .flyout select,.readonly .flyout textarea{pointer-events:none;opacity:.85}