:root{--bg: #ffffff;--bg-subtle: #f5f5f7;--surface: #ffffff;--surface-2: rgba(255, 255, 255, .72);--border: rgba(0, 0, 0, .09);--border-strong: #d2d2d7;--text: #1d1d1f;--text-2: #6e6e73;--text-3: #86868b;--accent: #0071e3;--accent-hover: #0077ed;--accent-soft: rgba(0, 113, 227, .1);--danger: #ff3b30;--danger-soft: rgba(255, 59, 48, .1);--canvas: #f5f5f7;--grid: rgba(0, 0, 0, .07);--edge: #b9bec7;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04), 0 2px 8px rgba(0, 0, 0, .05);--shadow-md: 0 4px 16px rgba(0, 0, 0, .08);--shadow-lg: 0 20px 50px rgba(0, 0, 0, .16);--pill: 980px;--ease: cubic-bezier(.4, 0, .2, 1)}:root[data-theme=dark]{--bg: #000000;--bg-subtle: #1c1c1e;--surface: #1c1c1e;--surface-2: rgba(28, 28, 30, .74);--border: rgba(255, 255, 255, .12);--border-strong: #3a3a3c;--text: #f5f5f7;--text-2: #a1a1a6;--text-3: #8e8e93;--accent: #0a84ff;--accent-hover: #3d9bff;--accent-soft: rgba(10, 132, 255, .16);--danger: #ff453a;--danger-soft: rgba(255, 69, 58, .16);--canvas: #161618;--grid: rgba(255, 255, 255, .07);--edge: #5a6069;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .5);--shadow-md: 0 6px 22px rgba(0, 0, 0, .6);--shadow-lg: 0 24px 60px rgba(0, 0, 0, .75)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}html,body,#root{min-height:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:16px;line-height:1.5;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.spacer{flex:1}.icon{flex:none;display:block}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:none;background:transparent;color:var(--accent);font:inherit;font-size:15px;font-weight:500;padding:10px 18px;border-radius:var(--pill);cursor:pointer;white-space:nowrap;transition:background .2s var(--ease),color .2s var(--ease),transform .15s var(--ease),opacity .2s 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.board-card-actions{opacity:1}.board-new{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;min-height:224px;border-radius:20px;border:1.5px dashed var(--border-strong);background:transparent;color:var(--text-2);font:inherit;font-size:14px;cursor:pointer;transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease)}.board-new:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}.empty-state{text-align:center;padding:70px 20px;border-radius:22px;border:1.5px dashed var(--border-strong)}.empty-icon{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:var(--surface);border:1px solid var(--border);color:var(--accent);margin:0 auto 16px}.empty-state h2{margin:0 0 8px;font-size:20px;letter-spacing:-.02em}.empty-state p{max-width:380px;margin:0 auto 22px;font-size:14.5px;color:var(--text-2)}.board{position:fixed;top:0;right:0;bottom:0;left:0;overflow:hidden;background:var(--canvas)}.canvas{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden;cursor:default;background-image:radial-gradient(circle,var(--grid) 1px,transparent 1px);background-repeat:repeat}.canvas.panning{cursor:grabbing}.canvas.linking{cursor:crosshair}.world{position:absolute;top:0;left:0;transform-origin:0 0}.bar{position:absolute;z-index:20;display:flex;align-items:center;gap:4px;padding:6px 8px;border-radius:var(--pill);background:var(--surface-2);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border:1px solid var(--border);box-shadow:var(--shadow-sm)}.bar-top{top:12px;left:12px;right:12px}.bar-tools{bottom:14px;left:50%;transform:translate(-50%);max-width:calc(100vw - 20px);overflow-x:auto;scrollbar-width:none}.bar-tools::-webkit-scrollbar{display:none}.bar-sep{flex:none;width:1px;height:22px;margin:0 4px;background:var(--border)}.board-title{border:1px solid transparent;background:transparent;border-radius:9px;padding:6px 9px;font:inherit;font-size:14px;font-weight:650;letter-spacing:-.015em;color:var(--text);width:190px;outline:none;transition:background .2s var(--ease),border-color .2s var(--ease)}.board-title:hover{background:var(--bg-subtle)}.board-title:focus{background:var(--surface);border-color:var(--border-strong)}.board-count{font-size:11.5px;color:var(--text-3);background:var(--bg-subtle);border-radius:var(--pill);padding:4px 9px;white-space:nowrap}.tools{display:flex;align-items:center;gap:2px;padding:3px;border-radius:var(--pill);background:var(--bg-subtle)}.tool-btn{display:inline-flex;align-items:center;gap:6px;border:none;background:transparent;color:var(--text-2);font:inherit;font-size:13px;padding:7px 12px;border-radius:var(--pill);cursor:pointer;white-space:nowrap;transition:background .2s var(--ease),color .2s var(--ease)}.tool-btn:hover{background:var(--surface);color:var(--text)}.tool-btn.active{background:var(--accent);color:#fff}.search{display:flex;align-items:center;gap:7px;padding:7px 12px;border-radius:var(--pill);border:1px solid var(--border);background:var(--bg-subtle);color:var(--text-3);transition:border-color .2s var(--ease),background .2s var(--ease)}.search:focus-within{border-color:var(--accent);background:var(--surface)}.search input{width:160px;border:none;background:transparent;outline:none;font:inherit;font-size:13px;color:var(--text)}.search input::placeholder{color:var(--text-3)}.zoom-pill{position:absolute;right:16px;bottom:16px;z-index:20;display:flex;align-items:center;gap:2px;padding:6px;border-radius:var(--pill);background:var(--surface-2);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border:1px solid var(--border);box-shadow:var(--shadow-sm)}.zoom-value{min-width:44px;text-align:center;font-size:12px;font-variant-numeric:tabular-nums;color:var(--text-2)}.pill-sep{width:1px;height:18px;margin:0 4px;background:var(--border)}.link-hint,.sel-pill{position:absolute;left:50%;bottom:18px;transform:translate(-50%);z-index:20;padding:9px 16px;border-radius:var(--pill);font-size:12.5px;background:var(--surface-2);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border:1px solid var(--border);box-shadow:var(--shadow-sm);color:var(--text-2);white-space:nowrap}.link-hint{top:16px;bottom:auto;background:var(--accent);border-color:transparent;color:#fff}.entity{position:absolute;padding:14px;border-radius:14px;color:#1d1d1f;overflow:visible;-webkit-user-select:none;user-select:none;cursor:grab;box-shadow:0 1px 2px #0000000f,0 6px 18px #00000012;transition:box-shadow .2s var(--ease),outline-color .2s var(--ease)}.entity:hover{box-shadow:0 2px 6px 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