:root{color-scheme:dark light;--bg: #0e0f12;--panel: #15171c;--border: #262932;--fg: #e6e7eb;--muted: #8b8f99;--accent: #7aa2f7;--accent-2: #f7768e;--ok: #9ece6a;--err: #f7768e;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Inter,sans-serif}*{box-sizing:border-box}html,body,#root{margin:0;height:100%;background:var(--bg);color:var(--fg)}button,select,textarea,input{font:inherit;color:inherit}textarea{width:100%;height:100%;background:transparent;border:0;resize:none;padding:12px;outline:none;font-family:ui-monospace,JetBrains Mono,Menlo,monospace;font-size:13px;line-height:1.5}button{background:var(--panel);border:1px solid var(--border);color:var(--fg);padding:6px 12px;border-radius:6px;cursor:pointer;transition:background .12s,border-color .12s}button:hover{background:#1c1f26;border-color:#343844}button.primary{background:var(--accent);color:#0e0f12;border-color:transparent;font-weight:600}button.primary:hover{background:#91b3f7}select{background:var(--panel);border:1px solid var(--border);border-radius:6px;padding:6px 10px}.app{height:100%;display:grid;grid-template-rows:auto 1fr auto}.topbar{display:flex;align-items:center;gap:12px;padding:10px 14px;border-bottom:1px solid var(--border);background:var(--panel)}.topbar h1{font-size:14px;margin:0;letter-spacing:.04em;color:var(--muted);font-weight:600;text-transform:uppercase}.topbar .spacer{flex:1}.status{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px}.status .dot{width:8px;height:8px;border-radius:50%;background:var(--muted)}.status .dot.ok{background:var(--ok)}.status .dot.err{background:var(--err)}.workspace{display:grid;grid-template-columns:240px 1fr;min-height:0}.viewport{position:relative;overflow:auto;background:radial-gradient(circle at 1px 1px,#1a1d24 1px,transparent 0) 0 0 / 24px 24px,var(--bg);display:grid;place-items:center;padding:32px}.diagram{background:#fff;border-radius:12px;box-shadow:0 10px 40px #00000080;padding:24px;max-width:100%;max-height:100%}.diagram svg{max-width:100%;height:auto;display:block}.error{color:var(--err);background:#2a1518;border:1px solid #4a1f25;border-radius:8px;padding:16px;font-family:ui-monospace,Menlo,monospace;font-size:12px;white-space:pre-wrap;max-width:600px}.empty{color:var(--muted);font-size:14px}.library{background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;min-height:0}.library-header{padding:10px 12px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px}.library-title{font-weight:600;font-size:13px;flex:1}.library-count-badge{display:inline-flex;align-items:center;min-width:28px;height:20px;padding:0 8px;border-radius:10px;background:var(--bg);border:1px solid var(--border);color:var(--fg);font-size:11px;font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}.library-select-toggle{font-size:11px;padding:3px 10px;border-radius:6px;background:var(--bg);border:1px 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p{font-size:13px;line-height:1.5;margin:0}.empty-state-promo{margin-top:32px;text-align:center;pointer-events:auto}.empty-state-promo-label{color:#a0a3ad;font-size:12px;margin-bottom:12px}.empty-state-promo-cards{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.empty-state-promo-card{display:flex;flex-direction:column;gap:4px;background:#1a1d24;border:1px solid #2c2f3a;border-radius:6px;padding:12px 16px;min-width:180px;text-decoration:none;color:#e6e7eb}.empty-state-promo-card:hover{border-color:#7aa2f7}.empty-state-promo-card span{color:#a0a3ad;font-size:12px}.public-toggle-wrapper{position:relative;display:inline-flex;align-items:center}.public-toggle{background:transparent;border:0;color:#888;cursor:pointer;padding:0 6px;font-size:12px;line-height:1}.public-toggle:hover{color:#222}.public-toggle-popover{position:absolute;top:24px;right:0;z-index:50;background:#fff;color:#222;border:1px solid #ccc;border-radius:6px;display:flex;flex-direction:column;gap:6px;padding:10px 12px;min-width:240px;box-shadow:0 4px 12px #00000026;font-size:12px}.public-toggle-popover label{display:flex;align-items:center;gap:6px;cursor:pointer}.public-toggle-hint{margin:6px 0 4px;color:#555;font-size:11px}.public-toggle-url{width:100%;padding:4px 6px;border:1px solid #d0d0d4;border-radius:4px;font-family:ui-monospace,Menlo,monospace;font-size:11px;color:#222;background:#f7f7f9}.public-toggle-error{color:#c0392b;font-size:11px;margin:4px 0 0}.public-diagram{min-height:100vh;display:flex;flex-direction:column;background:var(--bg);color:var(--fg)}.public-header{display:flex;align-items:baseline;gap:12px;padding:16px 24px;border-bottom:1px solid var(--border);background:var(--panel)}.public-header h1{margin:0;font-size:18px;font-weight:600}.public-engine{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}.public-svg{flex:1;display:flex;align-items:center;justify-content:center;padding:32px;background:radial-gradient(circle at 1px 1px,#1a1d24 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toast-in{0%{transform:translate(20px);opacity:0}to{transform:translate(0);opacity:1}}.toast-error{border-left:3px solid #d33}.toast-success{border-left:3px solid #2a8}.toast-info{border-left:3px solid #4a90e2}.toast-message{flex:1}.toast-dismiss{background:none;border:none;cursor:pointer;font-size:20px;line-height:1;padding:0;color:#888}.toast-dismiss:hover{color:#222}.tile-edit,.tile-history{background:transparent;border:0;color:#555;cursor:pointer;padding:2px 6px;font-size:11px;border-radius:4px}.tile-edit:hover,.tile-history:hover{color:#222;background:#0000000d}.tile-edit.active,.tile-history.active{color:#2c5e9e;background:#e8eef9}.tile-editor{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;background:#1e2127;color:#e6e7eb;z-index:10;font-family:ui-monospace,JetBrains Mono,Menlo,monospace;font-size:12px}.tile-editor-toolbar{display:flex;align-items:center;gap:8px;height:28px;flex-shrink:0;padding:0 8px;background:#15171c;border-bottom:1px solid #2c2f3a;font-family:ui-sans-serif,system-ui;font-size:12px}.tile-editor-title{flex:1;color:#a0a3ad}.tile-editor-status{font-size:11px}.tile-editor-status.saving{color:#a0a3ad}.tile-editor-status.ok{color:var(--ok, #9ece6a)}.tile-editor-status.err{color:var(--err, #f7768e)}.tile-editor-save,.tile-editor-close{background:#2c2f3a;color:#e6e7eb;border:0;padding:3px 10px;border-radius:4px;cursor:pointer;font-size:11px}.tile-editor-save{background:var(--accent, #7aa2f7);color:#0e0f12;font-weight:600}.tile-editor-save:disabled{opacity:.5;cursor:not-allowed}.tile-editor-body{flex:1;display:flex;overflow:hidden;min-height:0}.tile-editor-gutter{flex-shrink:0;width:40px;margin:0;padding:12px 6px;text-align:right;background:#181a1f;color:#555a66;font-family:inherit;font-size:inherit;line-height:1.5;-webkit-user-select:none;user-select:none;border-right:1px solid 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#2c2f3a}.tile-history-title{flex:1;color:#a0a3ad;font-size:12px}.tile-history-close{background:transparent;border:0;color:#888;cursor:pointer;padding:0 4px;font-size:16px}.tile-history-close:hover{color:#f7768e}.tile-history-empty{padding:16px;color:#a0a3ad;font-size:12px;text-align:center}.tile-history-error pre{margin:8px 12px;padding:8px;background:#f7768e1f;border:1px solid rgba(247,118,142,.4);color:#f7768e;border-radius:4px;white-space:pre-wrap}.tile-history-body{flex:1;display:flex;min-height:0}.tile-history-list{list-style:none;margin:0;padding:0;width:140px;flex-shrink:0;border-right:1px solid #2c2f3a;overflow-y:auto}.tile-history-item{padding:8px 10px;cursor:pointer;border-bottom:1px solid rgba(44,47,58,.5)}.tile-history-item:hover{background:#2a2d35}.tile-history-item.selected{background:#2c5e9e22;border-left:2px solid var(--accent, #7aa2f7);padding-left:8px}.tile-history-item-time{font-size:11px;color:#e6e7eb}.tile-history-item-meta{font-size:10px;color:#a0a3ad;margin-top:2px}.tile-history-detail{flex:1;min-width:0;display:flex;flex-direction:column}.tile-history-detail-head{display:flex;align-items:center;gap:12px;padding:6px 10px;background:#15171c;border-bottom:1px solid #2c2f3a;font-size:11px;color:#a0a3ad}.tile-history-diff-stats{font-family:ui-monospace,Menlo,monospace}.tile-history-diff-stats .added{color:var(--ok, #9ece6a);margin-right:8px}.tile-history-diff-stats .removed{color:var(--err, #f7768e)}.tile-history-restore{margin-left:auto;background:var(--accent, #7aa2f7);color:#0e0f12;border:0;padding:4px 10px;border-radius:4px;cursor:pointer;font-size:11px;font-weight:600}.tile-history-restore:disabled{opacity:.5;cursor:not-allowed}.tile-history-diff{flex:1;margin:0;padding:8px 0;background:#181a1f;font-family:ui-monospace,JetBrains Mono,Menlo,monospace;font-size:11px;line-height:1.5;overflow:auto;white-space:pre}.tile-history-diff .diff-line{display:block;padding:0 12px}.tile-history-diff .diff-line.diff-added{background:#9ece6a1f;color:var(--ok, #9ece6a)}.tile-history-diff .diff-line.diff-removed{background:#f7768e1f;color:var(--err, #f7768e)}.tile-history-diff .diff-line.diff-same{color:#a0a3ad}.tile-history-diff .muted{color:#555a66;padding:12px;display:block}.library-footer{border-top:1px solid var(--border);padding:8px 12px;flex-shrink:0}.library-settings-button{width:100%;text-align:left;background:transparent;border:1px solid var(--border);color:var(--fg);padding:6px 10px;border-radius:6px;font-size:12px;cursor:pointer}.library-settings-button:hover{background:#1c1f26;border-color:var(--accent)}.settings-soon{margin-top:8px;padding:8px 10px;border:1px dashed #2c2f3a;border-radius:6px;background:#7aa2f70d}.templates-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;display:flex;align-items:center;justify-content:center;z-index:150}.templates-panel{background:#1a1d24;color:#e6e7eb;border-radius:12px;padding:24px 28px;width:min(880px,calc(100vw - 32px));max-height:calc(100vh - 64px);overflow:auto;box-shadow:0 16px 48px #0009}.templates-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px}.templates-header h2{margin:0 0 4px;font-size:20px}.templates-header p{margin:0;color:#a0a3ad;font-size:13px;line-height:1.5}.templates-close{background:transparent;border:0;color:#a0a3ad;cursor:pointer;font-size:24px;line-height:1;padding:0 4px}.templates-close:hover{color:#e6e7eb}.templates-grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}.template-card{display:flex;flex-direction:column;gap:4px;background:#0e0f12;color:#e6e7eb;border:1px solid #2c2f3a;border-radius:8px;padding:14px;text-align:left;cursor:pointer;transition:border-color .12s,background .12s;font:inherit}.template-card:hover:not(:disabled){border-color:var(--accent);background:#14171f}.template-card:disabled{opacity:.55;cursor:progress}.template-card-title{font-weight:600;font-size:13px}.template-card-engine{font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--accent)}.template-card-desc{font-size:12px;color:#a0a3ad;line-height:1.4}.template-card-busy{font-size:11px;color:var(--accent);margin-top:4px}.templates-footer{display:flex;justify-content:flex-end;margin-top:16px;padding-top:12px;border-top:1px solid #2c2f3a}.templates-skip{background:transparent;color:#a0a3ad;border:0;padding:6px 10px;border-radius:6px;cursor:pointer;font-size:12px}.templates-skip:hover{color:#e6e7eb}.minimap{position:fixed;right:16px;bottom:52px;width:208px;background:#15171ceb;border:1px solid var(--border);border-radius:8px;box-shadow:0 6px 24px #0006;z-index:30;overflow:hidden;-webkit-user-select:none;user-select:none}.minimap-header{display:flex;align-items:center;justify-content:space-between;padding:4px 8px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);border-bottom:1px solid var(--border)}.minimap-close{background:transparent;border:0;color:var(--muted);cursor:pointer;padding:0 4px;font-size:14px}.minimap-close:hover{color:var(--fg);background:transparent}.minimap-svg{display:block;cursor:crosshair;background:#0e0f12}.minimap-bg{fill:#0e0f12}.minimap-tile{fill:#2a3a5c;stroke:#4868a4;stroke-width:1}.minimap-viewport{fill:#7aa2f71f;stroke:var(--accent);stroke-width:1.5}.minimap-show{position:fixed;right:16px;bottom:52px;z-index:30;background:#15171ceb;border:1px solid var(--border);color:var(--muted);padding:6px 10px;border-radius:6px;cursor:pointer;font-size:12px}.minimap-show:hover{color:var(--fg)}.palette-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:flex-start;justify-content:center;padding-top:12vh;z-index:300}.palette-panel{width:min(560px,90vw);background:#1a1d24;color:#e6e7eb;border:1px solid var(--border);border-radius:10px;box-shadow:0 18px 60px #0009;overflow:hidden;display:flex;flex-direction:column}.palette-input{width:100%;padding:14px 16px;background:transparent;border:0;outline:0;font-size:15px;color:var(--fg);border-bottom:1px solid var(--border)}.palette-list{list-style:none;margin:0;padding:4px 0;max-height:50vh;overflow:auto}.palette-item{display:flex;align-items:center;justify-content:space-between;padding:8px 16px;font-size:13px;cursor:pointer}.palette-item.selected{background:#2a3a5c}.palette-name{color:var(--fg)}.palette-hint{font-size:11px;color:var(--muted);padding:1px 6px;border:1px solid var(--border);border-radius:3px;background:var(--bg)}.palette-empty{padding:14px 16px;color:var(--muted);font-size:13px;font-style:italic}.palette-footer{display:flex;gap:12px;padding:6px 14px;border-top:1px solid var(--border);background:#15171c;color:var(--muted);font-size:11px}.shortcuts-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:250}.shortcuts-panel{width:min(640px,90vw);max-height:80vh;background:#1a1d24;color:#e6e7eb;border:1px solid var(--border);border-radius:12px;box-shadow:0 18px 60px #0009;display:flex;flex-direction:column;overflow:hidden}.shortcuts-head{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--border)}.shortcuts-head h2{margin:0;font-size:16px;font-weight:600}.shortcuts-close{background:transparent;border:0;color:var(--muted);cursor:pointer;font-size:22px;line-height:1;padding:0 6px}.shortcuts-close:hover{color:var(--fg);background:transparent}.shortcuts-body{padding:12px 20px;overflow:auto}.shortcuts-group{margin-bottom:14px}.shortcuts-group h3{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 6px}.shortcuts-group dl{margin:0}.shortcuts-row{display:grid;grid-template-columns:160px 1fr;gap:12px;padding:4px 0;font-size:13px}.shortcuts-row dt{margin:0}.shortcuts-row dd{margin:0;color:var(--muted)}.shortcuts-row kbd{font-family:ui-monospace,Menlo,monospace;font-size:11px;padding:2px 6px;background:var(--bg);border:1px solid var(--border);border-radius:4px;color:var(--fg)}.shortcuts-foot{padding:8px 20px;border-top:1px solid var(--border);background:#15171c;color:var(--muted);font-size:12px}.shortcuts-foot kbd{font-family:ui-monospace,Menlo,monospace;font-size:11px;padding:1px 5px;background:var(--bg);border:1px solid var(--border);border-radius:4px;color:var(--fg)}.library-snap-toggle{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--fg);cursor:pointer}.library-snap-toggle input{cursor:pointer}.kbd-hint{margin-left:auto;font-family:ui-monospace,Menlo,monospace;font-size:10px;padding:1px 5px;background:var(--bg);border:1px solid var(--border);border-radius:3px;color:var(--muted)}.tile-kb-focused{outline:2px solid var(--accent);outline-offset:2px}