:root{--bg:#121317;--panel:#1f2127;--input-bg:#1a1c21;--line:#23252c;--line-2:#2a2d35;--ink:#e9eaee;--muted:#9298a6;--muted-2:#6c717e;--accent:#8b93ff;--accent-ink:#c7ccff;--danger:#e08585;--danger-line:#3a2d31;--float-bg:#121317e0}[data-theme=light]{--bg:#f6f7f9;--panel:#fff;--input-bg:#fff;--line:#e3e5ea;--line-2:#d5d8e0;--ink:#22242b;--muted:#6a7080;--muted-2:#8a8f9c;--accent:#5b64f2;--accent-ink:#4a52d6;--danger:#c25454;--danger-line:#e5c9c9;--float-bg:#ffffffeb}*,:before,:after{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font:400 15.5px/1.65 Seravek,Segoe UI,system-ui,sans-serif;overflow:hidden}button{font-family:inherit}.app{flex-direction:column;height:100%;display:flex}header{border-bottom:1px solid var(--line);flex-shrink:0;align-items:center;gap:14px;padding:10px 18px;display:flex}.brand-group{align-items:center;gap:10px;display:flex}.brand{letter-spacing:.32em;text-transform:uppercase;color:var(--accent);font-size:13px;font-weight:700}.slogan{color:var(--muted);border-left:1px solid var(--line-2);padding-left:14px;font-size:13px}.header-actions{align-items:center;gap:8px;margin-left:auto;display:flex}.header-actions button{color:var(--ink);background:var(--panel);border:1px solid var(--line-2);cursor:pointer;border-radius:8px;align-items:center;gap:6px;padding:7px 12px;font-size:12.5px;font-weight:550;transition:border-color .2s,color .2s;display:inline-flex}.header-actions button:hover{border-color:var(--accent);color:var(--accent)}.header-actions .clear-board{color:var(--danger)}.header-actions .clear-board:hover{border-color:var(--danger-line);color:var(--danger)}.diagram-name-field{color:var(--muted);background:var(--input-bg);border:1px solid var(--line-2);border-radius:8px;align-items:center;gap:7px;padding:4px 8px;display:inline-flex}.diagram-name-field span{letter-spacing:.12em;text-transform:uppercase;font-size:10.5px;font-weight:700}.diagram-name{width:160px;min-width:0;color:var(--ink);background:0 0;border:none;padding:2px 0;font:600 12.5px Seravek,Segoe UI,system-ui,sans-serif}.diagram-name:focus{outline:none}.export-menu-wrap{position:relative}.export-menu{z-index:30;background:var(--float-bg);border:1px solid var(--line-2);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:10px;flex-direction:column;gap:3px;min-width:230px;padding:6px;display:flex;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 18px 50px #00000059}.header-actions .export-menu button{text-align:left;background:0 0;border:none;flex-direction:column;align-items:flex-start;gap:1px;width:100%;padding:9px 10px;display:flex}.export-menu button:hover:not(:disabled){background:color-mix(in srgb, var(--accent) 13%, transparent)}.export-menu button:disabled{opacity:.42;cursor:not-allowed}.export-menu strong{color:var(--ink);font-size:12.5px}.export-menu span{color:var(--muted);font-size:11.5px}.io-message{color:var(--muted);font-size:12.5px}.layout{flex:1;min-height:0;display:flex}.app-footer{border-top:1px solid var(--line);color:var(--muted-2);text-align:center;flex-shrink:0;padding:6px 18px;font-size:11.5px;line-height:1.4}.app-footer a{color:var(--accent);font-weight:600;text-decoration:none}.app-footer a:hover{color:var(--accent)}.sidebar{border-right:1px solid var(--line);scrollbar-gutter:stable;scrollbar-width:thin;scrollbar-color:var(--line-2) transparent;flex-direction:column;flex-shrink:0;gap:22px;width:236px;padding:16px 20px 18px 14px;display:flex;overflow-y:auto}.sidebar::-webkit-scrollbar{width:10px}.sidebar::-webkit-scrollbar-track{background:0 0}.sidebar::-webkit-scrollbar-thumb{background:var(--line-2);background-clip:content-box;border:3px solid #0000;border-radius:999px}.sidebar::-webkit-scrollbar-thumb:hover{background:var(--accent);background-clip:content-box}.sidebar h2{letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:0 0 8px;font-size:11px;font-weight:600}.palette{grid-template-columns:1fr 1fr;gap:6px;display:grid}.palette button{text-align:left;color:var(--ink);background:var(--panel);border:1px solid var(--line-2);cursor:pointer;border-radius:8px;align-items:center;gap:7px;padding:8px 9px;font-size:12.5px;font-weight:550;transition:border-color .2s,color .2s;display:flex}.palette button .glyph{color:var(--muted);flex-shrink:0;transition:color .2s}.palette button:hover{border-color:var(--accent);color:var(--accent)}.palette button:hover .glyph{color:var(--accent)}.palette button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.props{flex-direction:column;gap:10px;display:flex}.props label{letter-spacing:.12em;text-transform:uppercase;color:var(--muted);flex-direction:column;gap:4px;font-size:10.5px;font-weight:600;display:flex}.props input,.props textarea,.props select{color:var(--ink);background:var(--input-bg);border:1px solid var(--line-2);border-radius:6px;padding:7px 9px;font:400 13.5px Seravek,Segoe UI,system-ui,sans-serif}.props textarea{resize:vertical;line-height:1.5}.props input:focus,.props textarea:focus,.props select:focus{border-color:var(--accent);outline:none}.props .conn-ends{color:var(--muted);margin:-4px 0 0;font-size:12.5px}.side-row{gap:8px;display:flex}.side-row label{flex:1;min-width:0}.arrange{gap:6px;display:flex}.arrange button{color:var(--muted);background:var(--input-bg);border:1px solid var(--line-2);cursor:pointer;border-radius:6px;flex:1;padding:6px 0;font-size:14px;line-height:1;transition:border-color .2s,color .2s}.arrange button:hover{border-color:var(--accent);color:var(--accent)}.swatches{gap:6px;display:flex}.swatch{border:1px solid var(--line-2);cursor:pointer;border-radius:6px;width:20px;height:20px;padding:0}.swatch--none{background:linear-gradient(to top left, transparent 44%, var(--danger) 46%, var(--danger) 54%, transparent 56%), var(--input-bg)}.swatch.active{outline:2px solid var(--accent);outline-offset:1px}.props .danger{color:var(--danger);border:1px solid var(--danger-line);cursor:pointer;background:0 0;border-radius:8px;align-self:flex-start;padding:7px 12px;font-size:12.5px;font-weight:550;transition:border-color .2s}.props .danger:hover{border-color:var(--danger)}.hint-inline{color:var(--muted-2);margin:0;font-size:12px;line-height:1.5}.flows-head{justify-content:space-between;align-items:baseline;display:flex}.new-flow{color:var(--accent);cursor:pointer;background:0 0;border:none;padding:0;font:550 12px inherit}.new-flow:hover{text-decoration:underline}.flow-list{flex-direction:column;gap:4px;margin:8px 0 0;padding:0;list-style:none;display:flex}.flow-item{align-items:stretch;gap:4px;display:flex}.flow-name{text-align:left;color:var(--ink);background:var(--panel);border:1px solid var(--line-2);cursor:pointer;border-radius:8px;flex:1;justify-content:space-between;align-items:center;gap:8px;padding:7px 10px;font:550 13px inherit;display:flex}.flow-item.active .flow-name{border-color:var(--accent);color:var(--accent)}.flow-count{color:var(--muted);font-variant-numeric:tabular-nums;font-size:11px}.flow-play,.flow-del{color:var(--muted);background:var(--panel);border:1px solid var(--line-2);cursor:pointer;border-radius:8px;padding:0 9px;font-size:13px}.flow-play:hover:not(:disabled){color:var(--accent);border-color:var(--accent)}.flow-play:disabled{opacity:.35;cursor:default}.flow-del:hover{color:var(--danger);border-color:var(--danger-line)}.flow-panel h2{color:var(--accent)}.step-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.step-row{background:var(--input-bg);border:1px solid var(--line-2);border-radius:8px;flex-direction:column;gap:5px;padding:8px;display:flex}.step-head{align-items:flex-start;gap:8px;display:flex}.step-num{background:var(--accent);width:18px;height:18px;color:var(--bg);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:11px;font-weight:700;display:flex}.step-conns{flex-direction:column;gap:2px;min-width:0;display:flex}.step-conn{color:var(--ink);text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.step-caption{color:var(--ink);background:var(--panel);border:1px solid var(--line-2);border-radius:6px;padding:5px 8px;font:400 12.5px Seravek,Segoe UI,system-ui,sans-serif}.step-caption:focus{border-color:var(--accent);outline:none}.step-actions{gap:4px;display:flex}.step-actions button{color:var(--muted);background:var(--panel);border:1px solid var(--line-2);cursor:pointer;border-radius:6px;flex:1;padding:4px;font-size:12px}.step-actions button:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.step-actions button:disabled{opacity:.35;cursor:default}.record-toggle{color:var(--ink);background:var(--panel);border:1px solid var(--line-2);cursor:pointer;border-radius:8px;padding:8px 12px;font:600 13px inherit}.record-toggle:hover{border-color:var(--accent);color:var(--accent)}.record-toggle.recording{color:var(--danger);border-color:var(--danger-line)}.toolbar{background:var(--float-bg);border:1px solid var(--line-2);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-radius:10px;gap:4px;padding:4px;display:flex;position:absolute;top:28px;left:28px}.toolbar button{width:32px;height:32px;color:var(--muted);cursor:pointer;background:0 0;border:none;border-radius:7px;justify-content:center;align-items:center;transition:background .15s,color .15s;display:flex}.toolbar button:hover{color:var(--ink)}.toolbar button.active{color:var(--accent);background:color-mix(in srgb, var(--accent) 14%, transparent)}.empty-state{pointer-events:none;justify-content:center;align-items:center;display:flex;position:absolute;inset:14px}.empty-state p{color:var(--muted-2);font-size:14px}.recording-bar{gap:10px}.rec-dot{background:#e5484d;border-radius:50%;flex-shrink:0;width:10px;height:10px;animation:1.4s ease-in-out infinite rec-pulse}@keyframes rec-pulse{0%,to{opacity:1}50%{opacity:.35}}@media (prefers-reduced-motion:reduce){.rec-dot{animation:none}}.rec-label{white-space:nowrap;font-size:13px;font-weight:600}.rec-hint{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;font-size:12.5px;overflow:hidden}.modal-overlay{z-index:20;background:#08090c8c;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.modal{background:var(--bg);border:1px solid var(--line-2);border-radius:14px;flex-direction:column;width:min(560px,100%);max-height:min(80vh,720px);display:flex;overflow:hidden;box-shadow:0 24px 60px #00000073}.modal--examples{width:min(680px,100%)}.modal-head{border-bottom:1px solid var(--line);align-items:center;gap:10px;padding:14px 16px;display:flex}.modal-title{color:var(--ink);flex:1;margin:0;font:640 18px Avenir Next,Futura,Segoe UI,system-ui,sans-serif}.example-grid{grid-template-columns:1fr 1fr;gap:10px;padding:16px;display:grid;overflow-y:auto}.example-card{text-align:left;background:var(--input-bg);border:1px solid var(--line-2);cursor:pointer;border-radius:10px;flex-direction:column;gap:5px;padding:14px;transition:border-color .15s,transform .1s;display:flex}.example-card:hover{border-color:var(--accent)}.example-card:active{transform:translateY(1px)}.example-card:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.example-name{color:var(--ink);font-size:14.5px;font-weight:640}.example-desc{color:var(--muted);font-size:12.5px;line-height:1.45}.example-meta{color:var(--muted-2);font-variant-numeric:tabular-nums;margin-top:2px;font-size:11.5px}.modal-foot{padding:0 16px 14px}@media (width<=560px){.example-grid{grid-template-columns:1fr}}.flow-title-input{color:var(--ink);background:0 0;border:1px solid #0000;border-radius:8px;flex:1;padding:5px 8px;font:650 18px Avenir Next,Futura,Segoe UI,system-ui,sans-serif}.flow-title-input:hover{border-color:var(--line-2)}.flow-title-input:focus{border-color:var(--accent);background:var(--input-bg);outline:none}.modal-close{color:var(--muted);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:6px 9px;font-size:15px}.modal-close:hover{color:var(--ink)}.modal .step-list{margin:0;padding:14px 16px;overflow-y:auto}.modal-empty{text-align:center;padding:24px 16px}.modal .step-head{align-items:center}.modal .step-conns{flex:1}.modal .step-actions{flex:none}.modal .step-actions button{flex:none;min-width:28px}.modal-actions{border-top:1px solid var(--line);gap:8px;padding:12px 16px;display:flex}.modal-actions button{color:var(--ink);background:var(--panel);border:1px solid var(--line-2);cursor:pointer;border-radius:8px;padding:8px 14px;font:600 13px inherit}.modal-actions button:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.modal-actions button:disabled{opacity:.45;cursor:default}.modal-actions .record-toggle{margin-right:auto}.modal-actions .danger{color:var(--danger);border-color:var(--danger-line)}.modal-actions .danger:hover{border-color:var(--danger);color:var(--danger)}.canvas-wrap{flex:1;min-width:0;padding:14px;position:relative}.board{position:absolute;inset:14px}.floatbar{background:var(--float-bg);border:1px solid var(--line-2);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-radius:10px;align-items:center;gap:14px;max-width:calc(100% - 60px);padding:8px 12px;display:flex;position:absolute;bottom:30px;left:30px}.floatbar button{white-space:nowrap;color:var(--ink);background:var(--panel);border:1px solid var(--line-2);cursor:pointer;border-radius:8px;padding:8px 14px;font-size:13px;font-weight:600;transition:border-color .2s,color .2s}.floatbar button:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.floatbar button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.floatbar button:disabled{opacity:.45;cursor:default}.caption{color:var(--accent);margin:0;font-size:13.5px;font-weight:550}.caption:empty{display:none}@media (width<=760px){body{overflow:auto}.layout{flex-direction:column}.sidebar{border-right:none;border-bottom:1px solid var(--line);width:100%}.canvas-wrap{min-height:70vh}}.export-overlay{z-index:60;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#08090c7a;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.export-progress{background:var(--bg);border:1px solid var(--line-2);border-radius:12px;width:min(360px,100vw - 40px);padding:18px;box-shadow:0 24px 70px #00000073}.export-progress h2{color:var(--ink);margin:0 0 12px;font-size:14px}.export-progress-bar{background:var(--input-bg);border:1px solid var(--line-2);border-radius:999px;height:8px;overflow:hidden}.export-progress-bar span{background:var(--accent);height:100%;transition:width .12s ease-out;display:block}.export-progress p{color:var(--muted);margin:9px 0 0;font-size:12.5px}.board{--b-bg:#16171c;--b-grid:#ffffff0d;--b-ink:#e8e9ee;--b-muted:#878da0;--b-accent:#8f97ff;--b-node:#1e2026;--b-stroke:#343741;--b-edge:#4a4e5c;--b-slot:#3c405c;--b-note-bg:#26231b;--b-note-stroke:#4a4432;--b-note-ink:#d8d3c2;--b-font:"Seravek", "Segoe UI", system-ui, sans-serif;--b-w:1.4;border:1px solid var(--line,#2a2d35);background:var(--b-bg);background-image:radial-gradient(var(--b-grid) 1px, transparent 1.4px);background-size:22px 22px;border-radius:14px;overflow:hidden}[data-theme=light] .board{--b-bg:#fbfbfd;--b-grid:#191c3014;--b-ink:#23252c;--b-muted:#6a7080;--b-accent:#5b64f2;--b-node:#fff;--b-stroke:#c6cad4;--b-edge:#8f95a3;--b-slot:#dde1f7;--b-note-bg:#fdf7e2;--b-note-stroke:#d9cf9e;--b-note-ink:#5c5540}.board svg{cursor:default;touch-action:none;width:100%;height:100%;display:block}.board.tool-hand svg,.board.space-pan svg{cursor:grab}.board svg.panning{cursor:grabbing}.board .marquee{fill:color-mix(in srgb, var(--b-accent) 12%, transparent);stroke:var(--b-accent);stroke-width:1px;stroke-dasharray:4 3;pointer-events:none}.board .node-g{cursor:move}.board text{-webkit-user-select:none;user-select:none;pointer-events:none}.board .traveler{pointer-events:none}.board .export-bg{fill:var(--b-bg)}.board.exporting{background:var(--b-bg);background-image:none;border:none;border-radius:0;overflow:visible}.board .node-shape{fill:var(--b-node);stroke:var(--node-color,var(--b-stroke));stroke-width:var(--b-w)}.board .node-g.custom-fill .node-shape{fill:var(--node-fill);fill-opacity:.22}.board .node-shape--dashed{stroke-dasharray:5 4}.board .node-glyph{fill:none;stroke:var(--b-muted);stroke-width:1.4px;stroke-linecap:round}.board .node-icon{fill:none;stroke:var(--node-color,var(--b-muted));stroke-width:1.3px;stroke-linecap:round;stroke-linejoin:round;opacity:.9}.board .node-tag{fill:var(--node-text,var(--b-muted));font:600 8.5px var(--b-font);letter-spacing:.14em;text-transform:uppercase}.board .node-name{fill:var(--node-text,var(--b-ink));font:600 13px var(--b-font)}.board .node-text{fill:var(--node-text,var(--node-color,var(--b-ink)));font:550 15px var(--b-font)}.board .text-hit{fill:#0000;stroke:none}.board .node-g.selected .text-hit{stroke:var(--b-accent);stroke-width:1px;stroke-dasharray:4 4}.board .note-shape{fill:var(--b-note-bg);stroke:var(--node-color,var(--b-note-stroke));stroke-width:var(--b-w);stroke-linejoin:round}.board .node-g.custom-fill .note-shape{fill:var(--node-fill);fill-opacity:.22}.board .note-text{fill:var(--node-text,var(--b-note-ink));font:450 12.5px var(--b-font)}.board .edge-line{fill:none;stroke:var(--edge-color,var(--b-edge));stroke-width:var(--b-w)}.board .edge-hit{fill:none;stroke:#0000;stroke-width:14px;pointer-events:stroke;cursor:pointer}.board .edge-line--event{stroke-dasharray:6 5}.board .edge-line--stream{stroke-dasharray:1.5 6;stroke-linecap:round}.board .edge-line--batch{stroke-dasharray:11 7}.board .edge-arrow{fill:var(--edge-color,var(--b-edge))}.board .edge-label{fill:var(--b-muted);font:500 10.5px var(--b-font)}.board .slot{fill:none;stroke:var(--b-stroke);stroke-width:1px}.board .slot.full{fill:var(--b-slot)}.board .zone-rect{fill:#0000;stroke:var(--zone-color,var(--b-stroke));stroke-width:1px;stroke-dasharray:7 6;cursor:move}.board .zone-g.custom-fill .zone-rect{fill:var(--zone-fill);fill-opacity:.16}.board .zone-header{fill:#0000;pointer-events:none}.board .zone-tag{fill:var(--zone-text,var(--b-muted));font:600 9px var(--b-font);letter-spacing:.16em;text-transform:uppercase;pointer-events:none}.board .zone-g.selected .zone-rect{stroke:var(--b-accent)}.board .zone-handle{fill:var(--b-node);stroke:var(--b-accent);stroke-width:1.4px}.board .zone-handle--nw,.board .zone-handle--se{cursor:nwse-resize}.board .zone-handle--ne,.board .zone-handle--sw{cursor:nesw-resize}.board .zone-handle--n,.board .zone-handle--s{cursor:ns-resize}.board .zone-handle--e,.board .zone-handle--w{cursor:ew-resize}.board .traveler{fill:var(--b-accent)}.board .traveler--bright{filter:drop-shadow(0 0 5px var(--b-accent))}.board .node-g,.board .edge-g,.board .zone-g{transition:opacity .45s}.board.story .node-g,.board.story .edge-g{opacity:.16}.board.story .zone-g{opacity:.3}.board.story .node-g.lit,.board.story .edge-g.lit{opacity:1}.board .edge-g.lit .edge-line{stroke:var(--b-accent)}.board .edge-g.lit .edge-arrow{fill:var(--b-accent)}.board .node-g.lit .node-shape,.board .node-g.selected .node-shape,.board .edge-g.selected .edge-line{stroke:var(--b-accent)}.board .edge-g.selected .edge-arrow{fill:var(--b-accent)}.board .node-g.connect-target .node-shape{stroke:var(--b-accent)}.board .node-g.fn .node-shape{stroke-dasharray:5 3}.board:not(.story):not(.recording) .node-g.fn{opacity:.5;transition:opacity .45s}.board:not(.story):not(.recording) .node-g.fn.warm{opacity:1}@media (prefers-reduced-motion:reduce){.board:not(.story):not(.recording) .node-g.fn{opacity:1;transition:none}}.board .connect-handle{cursor:crosshair}.board .connect-handle-bg{fill:var(--b-node);stroke:var(--b-accent);stroke-width:1.4px}.board .connect-handle-plus{fill:none;stroke:var(--b-accent);stroke-width:1.6px;stroke-linecap:round}.board .connect-preview{fill:none;stroke:var(--b-accent);stroke-width:1.4px;stroke-dasharray:5 5;pointer-events:none}.board .endpoint-dot{fill:var(--b-node);stroke:var(--b-accent);stroke-width:1.6px;cursor:grab}.board .endpoint-dot:hover{fill:var(--b-accent)}.board.recording{cursor:default}.board.recording .edge-hit{cursor:pointer}.board.recording .edge-g .edge-line{stroke:var(--b-accent);opacity:.75}.board.recording .edge-g .edge-arrow{fill:var(--b-accent);opacity:.75}.board .step-badges{pointer-events:none}.board .step-badge-bg{fill:var(--b-accent);stroke:var(--b-bg);stroke-width:1.5px}.board .step-badge-text{fill:#14151a;font:700 10px var(--b-font)}[data-theme=light] .board .step-badge-text{fill:#fff}@media (prefers-reduced-motion:reduce){.board .node-g,.board .edge-g,.board .zone-g{transition:none}}