:root{--bg: #f4f5f7;--grid: rgba(0, 0, 0, .07);--panel: #ffffff;--ink: #1c1e21;--muted: #8b9098;--line: #eceef1;--card-border: #bcc3cc;--yellow: #dcae5c;--blue: #85aad6;--sel: #4262ff;--vs: 1;--card-shadow: 0 calc(1px * var(--vs)) calc(2px * var(--vs)) rgba(23, 26, 33, .1), 0 calc(2px * var(--vs)) calc(6px * var(--vs)) rgba(23, 26, 33, .14);--card-shadow-hover: 0 calc(2px * var(--vs)) calc(4px * var(--vs)) rgba(23, 26, 33, .14), 0 calc(6px * var(--vs)) calc(14px * var(--vs)) rgba(23, 26, 33, .18);--shadow: 0 calc(1px * var(--vs)) calc(3px * var(--vs)) rgba(23, 26, 33, .1), 0 calc(8px * var(--vs)) calc(24px * var(--vs)) rgba(23, 26, 33, .14);--card-border-w: calc(2px * var(--vs));--col-w: 318px;--gap: 16px;--card-radius: 14px}*{box-sizing:border-box}html,body,#root{margin:0;height:100%;overflow:hidden;font-family:-apple-system,Segoe UI,Roboto,Inter,system-ui,sans-serif;color:var(--ink);-webkit-font-smoothing:antialiased}.loading{display:grid;place-items:center;height:100%;color:var(--muted)}.viewport{position:absolute;inset:0;overflow:hidden;background-color:var(--bg);background-image:radial-gradient(circle,var(--grid) 1.1px,transparent 1.1px);background-size:var(--step) var(--step);background-position:var(--gx) var(--gy);cursor:grab;touch-action:none}.viewport:active{cursor:grabbing}.viewport.tool-usm,.viewport.tool-sticky,.viewport.tool-text,.viewport.tool-shape,.viewport.tool-frame,.viewport.tool-arrow{cursor:crosshair}.world{position:absolute;top:0;left:0;transform-origin:0 0;will-change:transform}.obj{position:absolute;cursor:default}.obj.is-selected>.usm-panel,.obj.is-selected.sticky,.obj.is-selected.shape,.obj.is-selected.frame,.obj.is-selected.textobj{box-shadow:0 0 0 2px var(--sel),var(--shadow)}.obj-title{font-size:13px;color:var(--muted);margin:0 0 8px 4px;min-width:60px}.editable{outline:none;white-space:pre-wrap;overflow-wrap:anywhere;cursor:text}.editable:empty:before{content:attr(data-placeholder);color:#b4b9c1;pointer-events:none}.usm-panel{background:var(--panel);border-radius:12px;box-shadow:0 0 0 calc(1px * var(--vs)) #e1e5ea,0 calc(1px * var(--vs)) calc(3px * var(--vs)) #171a211a,0 calc(8px * var(--vs)) calc(24px * var(--vs)) #171a2124;padding:20px 0 10px;min-width:260px}.usm-grid{display:grid;gap:var(--gap);padding:0 22px}.usm-head{display:flex;align-items:flex-start;gap:6px;padding-bottom:18px}.usm-col{display:flex;flex-direction:column;gap:10px}.usm-head .add-col{margin-top:14px;margin-right:12px}.usm-section{padding:0 0 18px}.usm-section-head{display:flex;align-items:center;gap:6px;padding:10px 22px 8px;border-bottom:1px solid var(--line);margin-bottom:14px;font-size:11px;color:var(--muted)}.section-name{font-size:11px;color:var(--muted);min-width:40px}.section-count{color:#b8bcc4}.section-menu,.card-menu{display:grid;place-items:center;width:20px;height:20px;padding:0;border:0;border-radius:4px;background:transparent;color:var(--muted);cursor:pointer;opacity:.45}.section-menu svg,.card-menu svg{width:14px;height:14px}.usm-section-head:hover .section-menu,.card:hover .card-menu,.section-menu:hover,.card-menu:hover{opacity:1}.section-menu:hover,.card-menu:hover{background:#f0f1f4}.usm-cell{display:flex;flex-direction:column;gap:10px;min-height:46px;border-radius:8px;transition:background .12s}.usm-cell.is-drop{background:#4262ff14;outline:1.5px dashed var(--sel);outline-offset:3px}.usm-add-section{display:flex;align-items:center;gap:6px;margin:4px 22px 6px;padding:7px 10px;border:0;border-radius:7px;background:transparent;color:var(--muted);font-size:12px;cursor:pointer;opacity:0;transition:opacity .12s}.usm-panel:hover .usm-add-section{opacity:1}.usm-add-section:hover{background:#f0f1f4;color:var(--ink)}.card{position:relative;display:flex;align-items:center;gap:4px;width:100%;min-width:0;--card-color: var(--card-border);min-height:54px;padding:14px 16px 14px 20px;border:0;border-radius:var(--card-radius);background:#fff;box-shadow:0 0 0 calc(3px * var(--vs)) var(--card-color),0 calc(1px * var(--vs)) calc(2px * var(--vs)) #171a211a,0 calc(2px * var(--vs)) calc(6px * var(--vs)) #171a2124;font-size:15px;line-height:1.5}.card:hover{box-shadow:0 0 0 calc(3px * var(--vs)) var(--card-color),0 calc(2px * var(--vs)) calc(4px * var(--vs)) #171a2124,0 calc(6px * var(--vs)) calc(14px * var(--vs)) #171a212e}.card .editable{flex:1;min-width:0}.card.activity{--card-color: var(--yellow)}.card.task{--card-color: var(--blue)}.card.note{cursor:grab}.card.note.is-dragging{opacity:.35}.drag-ghost{position:fixed;z-index:50;width:var(--col-w);pointer-events:none;transform-origin:0 0;box-shadow:0 8px 22px #171a2133}.add-btn{display:grid;place-items:center;width:26px;height:26px;padding:0;border:0;border-radius:7px;background:transparent;color:#a8adb6;cursor:pointer;opacity:0;transition:opacity .12s,background .12s}.usm-col:hover .add-btn,.usm-cell:hover .add-btn,.usm-head:hover .add-col,.add-btn:focus-visible{opacity:1}.add-btn:hover{background:#eef0f3;color:var(--ink)}.sticky{display:flex;padding:18px;border-radius:4px;box-shadow:0 calc(1px * var(--vs)) calc(2px * var(--vs)) #171a211f,0 calc(6px * var(--vs)) calc(16px * var(--vs)) #171a2124}.sticky-text{flex:1;display:flex;align-items:center;justify-content:center;text-align:center;font-size:17px;line-height:1.4}.textobj{padding:4px;line-height:1.4}.shape{display:grid;place-items:center;filter:drop-shadow(0 calc(1px * var(--vs)) calc(3px * var(--vs)) rgba(23,26,33,.14))}.shape-body{position:absolute;inset:0;width:100%;height:100%}.shape-text{position:relative;padding:14px;text-align:center;font-size:14px;line-height:1.4;max-width:100%}.frame{border:0;border-radius:10px;box-shadow:0 0 0 calc(1px * var(--vs)) var(--frame-color, #dbe0e6),0 calc(1px * var(--vs)) calc(3px * var(--vs)) #171a211a}.frame-title{position:absolute;top:-24px;left:0}.resizer{position:absolute;right:-5px;bottom:-5px;width:12px;height:12px;border:1.5px solid var(--sel);border-radius:3px;background:#fff;cursor:nwse-resize}.resizer.width-only{bottom:50%;transform:translateY(50%);cursor:ew-resize}.arrow-layer{position:absolute;top:0;left:0;width:1px;height:1px;pointer-events:none;z-index:30}.arrow-line{stroke:#5b6470}.arrow-hit{pointer-events:stroke;cursor:pointer}.arrow.is-selected .arrow-line{stroke:var(--sel);stroke-width:2.4}.arrow-label{font-size:11px;fill:var(--muted)}.connect-dots{position:absolute;z-index:35;pointer-events:none}.connect-dot{position:absolute;width:11px;height:11px;margin:-5.5px 0 0 -5.5px;padding:0;border:2px solid #fff;border-radius:50%;background:var(--sel);box-shadow:0 1px 3px #171a214d;cursor:crosshair;pointer-events:auto}.connect-dot:hover{transform:scale(1.35)}.arrow-layer.connecting{z-index:40}.connect-target{outline:2px solid var(--sel);outline-offset:2px;border-radius:var(--card-radius)}.usm-resizer{position:absolute;right:-7px;bottom:-7px;width:14px;height:14px;border:2px solid var(--sel);border-radius:4px;background:#fff;transform-origin:100% 100%;cursor:nwse-resize}.toolbar{position:absolute;top:50%;left:16px;transform:translateY(-50%);display:flex;flex-direction:column;gap:2px;padding:6px;border-radius:12px;background:#fff;box-shadow:var(--shadow)}.tool{display:grid;place-items:center;width:40px;height:40px;border:0;border-radius:8px;background:transparent;color:#41464f;cursor:pointer;transition:background .12s}.tool:hover:not(:disabled){background:#f0f1f4}.tool.on{background:#e8ecff;color:var(--sel)}.tool:disabled{color:#c8ccd3;cursor:default}.tool-sep{height:1px;margin:4px 6px;background:var(--line)}.text-toolbar,.obj-toolbar,.card-toolbar{position:fixed;z-index:70;display:flex;align-items:center;gap:2px;padding:4px;border-radius:10px;background:#fff;box-shadow:var(--shadow)}.tt-btn{display:grid;place-items:center;min-width:30px;height:30px;padding:0 7px;border:0;border-radius:7px;background:transparent;color:#41464f;font-size:13px;cursor:pointer}.tt-btn:hover{background:#f0f1f4}.tt-btn.danger{color:#d63c3c}.tt-btn.bold{font-weight:700}.tt-btn.italic{font-style:italic}.tt-btn.underline{text-decoration:underline}.tt-btn.strike{text-decoration:line-through}.tt-sep{width:1px;height:20px;margin:0 3px;background:var(--line)}.tt-colors{position:absolute;top:42px;left:0;display:flex;gap:5px;padding:7px;border-radius:9px;background:#fff;box-shadow:var(--shadow)}.tt-colors.grid{display:grid;grid-template-columns:repeat(6,22px);gap:6px;width:max-content}.tt-colors button{width:22px;height:22px;border:1px solid rgba(0,0,0,.1);border-radius:50%;cursor:pointer}.tt-colors button.on{outline:2px solid var(--sel);outline-offset:2px}.guide{position:absolute;background:#ff4d94;pointer-events:none;z-index:45}.guide-x{width:1px;margin-left:-.5px}.guide-y{height:1px;margin-top:-.5px}.marquee{position:absolute;border:1px solid var(--sel);background:#4262ff14;pointer-events:none;z-index:44}.tt-count{padding:0 8px;font-size:12px;color:var(--muted);white-space:nowrap}.stroke-ring{display:block;width:18px;height:18px;border:3px solid;border-radius:50%;background:#fff}.tt-colors.grid.stroke button{background:#fff}.text-color-icon{display:grid;justify-items:center;gap:2px;line-height:1}.tc-letter{font-size:13px;font-weight:600}.tc-bar{width:15px;height:3px;border-radius:1.5px}.fill-dot{display:block;width:18px;height:18px;border:1px solid rgba(0,0,0,.12);border-radius:50%}.shape-flyout{position:absolute;left:60px;top:50%;transform:translateY(-40%);min-width:190px;padding:5px;border-radius:10px;background:#fff;box-shadow:var(--shadow)}.shape-item{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;border:0;border-radius:7px;background:transparent;color:var(--ink);font-size:13px;text-align:left;cursor:pointer}.shape-item:hover{background:#f0f1f4}.shape-item.on{background:#e8ecff;color:var(--sel)}.topbar{position:absolute;top:14px;left:16px;display:flex;align-items:baseline;gap:10px;padding:8px 14px;border-radius:10px;background:#fff;box-shadow:var(--shadow);font-size:13px}.save-status{font-size:11px;color:var(--muted)}.zoombar{position:absolute;right:16px;bottom:16px;display:flex;align-items:center;gap:2px;padding:4px;border-radius:10px;background:#fff;box-shadow:var(--shadow)}.zoombar button{display:grid;place-items:center;height:30px;min-width:30px;padding:0 8px;border:0;border-radius:7px;background:transparent;color:#41464f;font-size:12px;cursor:pointer}.zoombar button:hover{background:#f0f1f4}.conflict{position:absolute;top:14px;left:50%;transform:translate(-50%);z-index:80;display:flex;align-items:center;gap:12px;max-width:620px;padding:10px 14px;border-radius:10px;background:#fff4e6;border:1px solid #ffc078;box-shadow:var(--shadow);font-size:13px}.conflict button{flex:none;padding:6px 12px;border:0;border-radius:7px;background:var(--sel);color:#fff;font-size:13px;cursor:pointer}.hint{position:absolute;bottom:20px;left:50%;transform:translate(-50%);padding:8px 14px;border-radius:8px;background:#22252b;color:#fff;font-size:12px}.card-toolbar{z-index:71}.viewport.is-readonly .card-menu,.viewport.is-readonly .section-menu,.viewport.is-readonly .usm-add-section,.viewport.is-readonly .usm-resizer,.viewport.is-readonly .resizer,.viewport.is-readonly .add-btn{display:none}.ro-badge{padding:2px 8px;border-radius:999px;background:#fff4e6;color:#b06a10;font-size:11px}.back-btn{width:24px;height:24px;margin-right:-4px;padding:0;border:0;border-radius:6px;background:transparent;color:var(--muted);font-size:20px;line-height:1;cursor:pointer}.back-btn:hover{background:#f0f1f4;color:var(--ink)}.admin{height:100%;padding:40px max(24px,calc(50% - 550px)) 60px;overflow:auto;background:var(--bg)}.admin header{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}.admin h1{margin:0;font-size:26px}.admin-actions{display:flex;gap:8px}.admin button.primary{display:flex;align-items:center;gap:6px;padding:9px 16px;border:0;border-radius:9px;background:var(--sel);color:#fff;font-size:14px;cursor:pointer}.admin button.ghost{padding:9px 14px;border:1px solid var(--card-border);border-radius:9px;background:#fff;color:var(--ink);font-size:14px;cursor:pointer}.admin button.ghost:hover{background:#f6f7f9}.admin button.ghost.danger{color:#d63c3c;border-color:#f0d0d0}.empty{color:var(--muted)}table.boards{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 1px 3px #171a2114,0 8px 24px #171a210f}table.boards th{padding:12px 16px;border-bottom:1px solid var(--line);color:var(--muted);font-size:12px;font-weight:500;text-align:left}table.boards td{padding:14px 16px;border-bottom:1px solid var(--line);font-size:14px;vertical-align:middle}table.boards tr:last-child td{border-bottom:0}.board-link{padding:0;border:0;background:none;color:var(--ink);font-size:15px;font-weight:500;text-align:left;cursor:pointer}.board-link:hover{color:var(--sel)}.board-id{color:#b4b9c1;font-size:11px}td.muted{color:var(--muted)}.share-cell{display:flex;align-items:center;gap:8px}.share-cell select{padding:7px 10px;border:1px solid var(--card-border);border-radius:8px;background:#fff;font-size:13px;cursor:pointer}.link-btn{padding:7px 10px;border:1px solid var(--card-border);border-radius:8px;background:#fff;color:var(--sel);font-size:13px;white-space:nowrap;cursor:pointer}.login{display:grid;gap:12px;width:280px;margin:18vh auto 0}.login h1{margin:0 0 6px;font-size:24px}.login input{padding:11px 14px;border:1px solid var(--card-border);border-radius:9px;font-size:15px}.login button{padding:11px;border:0;border-radius:9px;background:var(--sel);color:#fff;font-size:15px;cursor:pointer}.login button:disabled{background:#b9c2e8;cursor:default}.login-error{color:#d63c3c;font-size:13px}.menu{position:fixed;z-index:60;min-width:200px;padding:4px;border-radius:8px;background:#fff;box-shadow:var(--shadow)}.menu-item{display:block;width:100%;padding:8px 10px;border:0;border-radius:6px;background:transparent;color:var(--ink);font-size:13px;text-align:left;cursor:pointer}.menu-item:hover:not(:disabled){background:#f0f1f4}.menu-item:disabled{color:#bfc4cb;cursor:default}.menu-item.danger{color:#d63c3c}.menu-sep{height:1px;margin:4px 6px;background:var(--line)}.menu-swatches{padding:6px 10px 8px}.menu-swatches-label{display:block;margin-bottom:6px;font-size:11px;color:var(--muted)}.menu-swatches-row{display:grid;grid-template-columns:repeat(9,18px);gap:6px}.menu-swatches-row button{width:18px;height:18px;padding:0;border:3px solid;border-radius:50%;background:#fff;cursor:pointer}.menu-swatches-row button.on{outline:2px solid var(--sel);outline-offset:2px}