:root{--bg: #f5f7fa;--panel: #ffffff;--border: #dde3ea;--text: #1f2933;--muted: #6b7a8a;--accent: #1f6fd1;--accent-soft: #e6f0fc;--sel: #f08c1a;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--text);background:var(--bg)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}button{font:inherit}.app{display:grid;grid-template-rows:44px auto minmax(0,1fr) 28px;grid-template-columns:minmax(0,1fr);height:100vh;overflow:hidden}.topbar{display:flex;align-items:center;gap:16px;padding:0 12px;background:#243447;color:#fff}.brand{font-weight:700;letter-spacing:.5px;display:inline-flex;align-items:center;gap:8px}.fname{font-size:14px;opacity:.9}.dirty{color:#ffb44d;margin-left:6px;font-size:11px}.filemenu{margin-left:auto;display:flex;gap:4px}.filemenu button{background:transparent;color:#fff;border:1px solid transparent;border-radius:4px;padding:4px 10px;cursor:pointer;font-size:13px}.filemenu 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svg{width:14px;height:14px}.err-text{color:#d93025;font-size:12px}.btn.danger{background:#fff;color:#d93025;border-color:#e8b4b0}.btn.danger:hover{background:#fdecea;filter:none}.menu button:disabled{color:#b9c3cd;cursor:default;background:transparent}.tree .add-menu .menu{top:22px}.tree .tnode .x,.tree .tnode .tedit{opacity:0}.tree .tnode:hover .x,.tree .tnode:hover .tedit,.tree .tnode .x:focus-visible,.tree .tnode .tedit:focus-visible{opacity:1}.tree .tedit{font-size:12px;width:18px}.measures{background:#f7f4fb;border:1px solid #e3d8ef;border-radius:6px;padding:6px 10px;margin:2px 0 8px}.measures h4{margin:0 0 4px!important;color:#8e44ad!important}.measures dl{margin:0;display:grid;gap:1px}.measures dl>div{display:flex;justify-content:space-between;gap:8px;font-size:12.5px}.measures dt{color:var(--muted)}.measures dd{margin:0;font-variant-numeric:tabular-nums}.console .code .out pre.in{color:#9fb3c8}.console .code .out pre.res{color:#a6e3a1}.console .code .out 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span{color:#7f93a8;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.console .complete li.on{background:#2b5d99}.console .complete li.on span{color:#cfe0f5}.check{display:flex;align-items:center;gap:6px;font-size:12.5px;margin:6px 0}.filemenu>button,.filemenu .export-menu>button{display:inline-flex;align-items:center;gap:6px}.filemenu svg{width:16px;height:16px}.export-menu>button{background:transparent;color:#fff;border:1px solid transparent;border-radius:4px;padding:4px 10px;cursor:pointer;font:inherit;font-size:13px}.export-menu>button:hover{border-color:#ffffff59}.export-menu{position:relative;display:inline-block}.export-menu .menu{right:0;left:auto;top:34px;width:280px}.export-menu .menu button{color:var(--text)}@media (max-width: 1250px){.filemenu>button span,.export-menu>button span{display:none}}:root[data-theme=dark]{--bg: #0f141a;--panel: #18202a;--border: #2a3542;--text: #dfe7ef;--muted: #8b9bab;--accent: #5aa2ff;--accent-soft: #1c3150;--sel: 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