:root{color-scheme:light;--color-bg: #f6f7fb;--color-surface: #ffffff;--color-surface-muted: #eef0f6;--color-border: #d8dbe6;--color-text: #1a1a2e;--color-text-muted: #5a5d77;--color-accent: #1a1a2e;--color-accent-contrast: #ffffff;--color-grid-dot: rgba(26, 26, 46, .18);--shadow-1: 0 1px 2px rgba(0, 0, 0, .06), 0 2px 4px rgba(0, 0, 0, .04);--shadow-2: 0 4px 12px rgba(0, 0, 0, .08);--radius-1: 4px;--radius-2: 8px;--radius-3: 12px;--font-stack: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;padding:0}body{background:var(--color-bg);color:var(--color-text);font-family:var(--font-stack);font-size:14px;line-height:1.5;overflow:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{font-family:inherit;color:inherit;cursor:pointer}a{color:inherit}.canvas-cursor-default{cursor:default}.canvas-cursor-move{cursor:move}.canvas-cursor-grabbing{cursor:grabbing}.canvas-cursor-crosshair{cursor:crosshair}