:root{--bg:#f5f5f5;--panel:#fff;--text:#1e1e1e;--muted:#8a8a8a;--border:#0000001a;--accent:#0d99ff;--accent-soft:#e5f4ff;--shadow:0 2px 6px #00000014, 0 8px 24px #0000001a;color:var(--text);-webkit-font-smoothing:antialiased;font-family:Inter,Pretendard,Apple SD Gothic Neo,Malgun Gothic,system-ui,sans-serif}*{box-sizing:border-box}html,body,#root,.app{background:var(--bg);width:100%;height:100%;margin:0;overflow:hidden}html,body{overscroll-behavior:none;position:fixed;inset:0}.app{contain:layout paint;position:fixed;inset:0;overflow:hidden}button{font:inherit;color:inherit}.canvas-root{background-color:var(--bg);touch-action:none;-webkit-user-select:none;user-select:none;position:absolute;inset:0;overflow:hidden}.canvas-svg{display:block;overflow:visible}.rotate-handle{cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath d='M6 12a6 6 0 1 1 6 6' fill='none' stroke='white' stroke-width='4'/%3E%3Cpath d='M6 12a6 6 0 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0;border:none;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:2px;width:56px;height:52px;display:flex}.tool-btn:hover{background:#f0f0f0}.tool-btn.active{background:var(--accent-soft);color:var(--accent)}.tool-label{color:var(--muted);font-size:10px}.tool-btn.active .tool-label{color:var(--accent)}.shape-tray{background:var(--panel);box-shadow:var(--shadow);border-radius:12px;grid-template-columns:repeat(8,36px);gap:2px;padding:8px;display:grid;position:absolute;bottom:calc(100% + 8px);left:50%;transform:translate(-50%)}.shape-tray .icon-btn{width:36px;height:36px}.zoom-controls{background:var(--panel);box-shadow:var(--shadow);z-index:10;border-radius:10px;align-items:center;padding:4px;display:flex;position:absolute;bottom:16px;right:12px}.zoom-value{font-variant-numeric:tabular-nums;cursor:pointer;background:0 0;border:none;border-radius:6px;width:52px;height:32px;font-size:12px}.zoom-value:hover{background:#f0f0f0}.zoom-menu{bottom:calc(100% + 8px);right:0}.props-bar{background:var(--panel);box-shadow:var(--shadow);z-index:11;white-space:nowrap;border-radius:10px;flex-wrap:wrap;align-items:center;gap:2px;width:max-content;max-width:calc(100vw - 16px);padding:4px;display:flex;position:absolute;transform:translate(-50%)}.props-bar.menus-up .popover{top:auto;bottom:calc(100% + 8px)}.swatch{border:1px solid #00000026;border-radius:50%;display:inline-block}.text-btn{min-width:40px;padding:0 4px;font-size:12px}.text-color-btn{border-bottom:3px solid;padding:0 3px;font-size:15px;font-weight:700;line-height:1.1}.border-btn{border:2.5px solid;border-radius:4px;width:18px;height:18px}.popover-anchor{position:relative}.popover{background:var(--panel);box-shadow:var(--shadow);z-index:20;border-radius:10px;min-width:40px;padding:8px;position:absolute;top:calc(100% + 8px);left:50%;transform:translate(-50%)}.color-grid{grid-template-columns:repeat(5,28px);gap:4px;display:grid}.color-cell{cursor:pointer;background:0 0;border:2px solid 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0}.dropdown{background:var(--panel);box-shadow:var(--shadow);z-index:30;border-radius:10px;min-width:220px;padding:6px;position:absolute}.boards-menu{width:320px;top:calc(100% + 8px);left:0}.export-menu{top:calc(100% + 8px);right:0}.menu-section-title{color:var(--muted);padding:6px 10px 4px;font-size:11px;font-weight:600}.menu-check{align-items:center;gap:8px;padding:6px 10px;font-size:13px;display:flex}.menu-error{color:#f24822;padding:4px 10px;font-size:12px}.boards-list{max-height:50vh;overflow:auto}.board-row{border-radius:6px;align-items:center;gap:2px;display:flex}.board-row.active{background:var(--accent-soft)}.board-open{cursor:pointer;background:0 0;border:none;border-radius:6px;flex-direction:column;flex:1;align-items:flex-start;min-width:0;padding:6px 10px;display:flex}.board-open:hover{background:#0000000a}.board-open 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