app/src/content/embeds/remove-ch.html

<div class="d3-line" style="width:100%;margin:10px 0;"></div>
<style>
  .d3-line .d3-line__controls select {
    font-size: 12px;
    padding: 8px 28px 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--surface-bg);
    color: var(--text-color);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%230f1115' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 12px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    cursor: pointer;
    transition: border-color .15s ease, box-shadow .15s ease;
  }
  [data-theme="dark"] .d3-line .d3-line__controls select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  }
  .d3-line .d3-line__controls select:hover {
    border-color: var(--primary-color);
  }
  .d3-line .d3-line__controls select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(232,137,171,.25);
    outline: none;
  }
  .d3-line .d3-line__controls label { gap: 8px; }

  /* Range slider themed with --primary-color */
  .d3-line .d3-line__controls input[type="range"] { 
    -webkit-appearance: none; 
    appearance: none; 
    width: 100%; 
    height: 6px; 
    border-radius: 999px; 
    background: var(--border-color);
    outline: none;
  }
  .d3-line .d3-line__controls input[type="range"]::-webkit-slider-runnable-track {
    height: 6px; 
    background: transparent; 
    border-radius: 999px;
  }
  .d3-line .d3-line__controls input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none; 
    appearance: none; 
    width: 16px; 
    height: 16px; 
    border-radius: 50%; 
    background: var(--primary-color); 
    border: 2px solid var(--on-primary);
    margin-top: -5px; 
    cursor: pointer;
  }
  .d3-line .d3-line__controls input[type="range"]::-moz-range-track {
    height: 6px; 
    background: transparent; 
    border-radius: 999px;
  }
  .d3-line .d3-line__controls input[type="range"]::-moz-range-thumb {
    width: 16px; 
    height: 16px; 
    border-radius: 50%; 
    background: var(--primary-color); 
    border: 2px solid var(--on-primary);
    cursor: pointer;
  }
  /* Improved line color via CSS */
  .d3-line .lines path.improved { stroke: var(--primary-color); }
</style>
<script>
  (() => {
    const THIS_SCRIPT = document.currentScript;
    const ensureD3 = (cb) => {
      if (window.d3 && typeof window.d3.select === 'function') return cb();
      let s = document.getElementById('d3-cdn-script');
      if (!s) {
        s = document.createElement('script');
        s.id = 'd3-cdn-script';
        s.src = 'https://cdn.jsdelivr.net/npm/d3@7/dist/d3.min.js';
        document.head.appendChild(s);
      }
      const onReady = () => { if (window.d3 && typeof window.d3.select === 'function') cb(); };
      s.addEventListener('load', onReady, { once: true });
      if (window.d3) onReady();
    };

    const bootstrap = () => {
      const scriptEl = THIS_SCRIPT;
      const host = scriptEl && scriptEl.parentElement;
      let container = null;
      if (host && host.querySelector) {
        container = host.querySelector('.d3-line') || host.querySelector('.d3-runline');
      }
      if (!container) {
        let sib = scriptEl && scriptEl.previousElementSibling;
        while (sib && !(sib.classList && (sib.classList.contains('d3-line') || sib.classList.contains('d3-runline')))) {
          sib = sib.previousElementSibling;
        }
        container = sib || document.querySelector('.d3-line, .d3-runline');
      }
      if (!container) return;
      if (container.classList && container.classList.contains('d3-runline') && !container.classList.contains('d3-line')) {
        container.classList.add('d3-line');
      }
      if (container.dataset) {
        if (container.dataset.mounted === 'true') return;
        container.dataset.mounted = 'true';
      }

      // CSV: prefer public path, fallback to relative
      const CSV_PATHS = [
        '/data/remove_ch.csv',
        './assets/data/remove_ch.csv',
        '../assets/data/remove_ch.csv',
        '../../assets/data/remove_ch.csv'
      ];
      const fetchFirstAvailable = async (paths) => {
        for (const p of paths) {
          try { const r = await fetch(p, { cache: 'no-cache' }); if (r.ok) return await r.text(); } catch(e) {}
        }
        throw new Error('CSV not found: remove_ch.csv');
      };

      // Controls UI
      const controls = document.createElement('div');
      controls.className = 'd3-line__controls';
      Object.assign(controls.style, {
        marginTop: '12px',
        display: 'flex',
        gap: '16px',
        alignItems: 'center',
        justifyContent: 'space-between',
        width: '100%'
      });

      const labelMetric = document.createElement('label');
      Object.assign(labelMetric.style, {
        fontSize: '11px', color: 'var(--muted-color)', opacity: 0.8, display: 'flex', alignItems: 'center', gap: '6px', whiteSpace: 'nowrap', padding: '6px 10px', marginLeft: 'auto'
      });
      labelMetric.textContent = 'Metric';
      const selectMetric = document.createElement('select');
      Object.assign(selectMetric.style, { fontSize: '12px' });
      labelMetric.appendChild(selectMetric);

      // Inline legend on the right of the select
      const legendInline = document.createElement('div');
      legendInline.className = 'controls__legend';
      Object.assign(legendInline.style, {
        display: 'flex',
        gap: '8px',
        alignItems: 'center',
        flexWrap: 'nowrap',
        fontSize: '14px',
        marginLeft: '8px'
      });
      controls.appendChild(legendInline);
      controls.appendChild(labelMetric);

      // Create SVG with marker definitions
      const svg = d3.select(container).append('svg')
        .attr('width', '100%')
        .style('display', 'block');

      // Add marker definitions for different shapes
      const defs = svg.append('defs');
      
      // Academic marker shapes
      const markerShapes = ['circle', 'square', 'triangle', 'diamond', 'inverted-triangle'];
      const markerSize = 5;

      // Groups
      const gRoot = svg.append('g');
      const gGrid = gRoot.append('g').attr('class', 'grid');
      const gAxes = gRoot.append('g').attr('class', 'axes');
      const gAreas = gRoot.append('g').attr('class', 'areas');
      const gLines = gRoot.append('g').attr('class', 'lines');
      const gPoints = gRoot.append('g').attr('class', 'points');
      const gHover = gRoot.append('g').attr('class', 'hover');
      const gLegend = gRoot.append('foreignObject').attr('class', 'legend');

      // Tooltip
      container.style.position = container.style.position || 'relative';
      let tip = container.querySelector('.d3-tooltip');
      let tipInner;
      if (!tip) {
        tip = document.createElement('div');
        tip.className = 'd3-tooltip';
        Object.assign(tip.style, {
          position: 'absolute', top: '0px', left: '0px', transform: 'translate(-9999px, -9999px)', pointerEvents: 'none',
          padding: '8px 10px', borderRadius: '8px', fontSize: '12px', lineHeight: '1.35', border: '1px solid var(--border-color)',
          background: 'var(--surface-bg)', color: 'var(--text-color)', boxShadow: '0 4px 24px rgba(0,0,0,.18)', opacity: '0',
          transition: 'opacity .12s ease'
        });
        tipInner = document.createElement('div');
        tipInner.className = 'd3-tooltip__inner';
        tipInner.style.textAlign = 'left';
        tip.appendChild(tipInner);
        container.appendChild(tip);
      } else {
        tipInner = tip.querySelector('.d3-tooltip__inner') || tip;
      }

      // Colors per run
      const primary = getComputedStyle(document.documentElement).getPropertyValue('--primary-color').trim() || '#E889AB';
      const pool = [primary, '#4EA5B7', '#E38A42', '#CEC0FA', ...(d3.schemeTableau10||[])];

      // Mapping from metric names to display titles
      const metricTitleMapping = {
        'docvqa_val_anls': 'DocVQA',
        'infovqa_val_anls': 'InfoVQA',
        'mme_total_score': 'MME Total',
        'mmmu_val_mmmu_acc': 'MMMU',
        'mmstar_average': 'MMStar',
        'ocrbench_ocrbench_accuracy': 'OCRBench',
        'scienceqa_exact_match': 'ScienceQA',
        'textvqa_val_exact_match': 'TextVQA',
        'average': 'Average',
        'average_rank': 'Average Rank',
        'ai2d_exact_match': 'AI2D',
        'chartqa_relaxed_overall': 'ChartQA',
        'seedbench_seed_all': 'SeedBench'
      };

      // Function to get display name for metric
      function getMetricDisplayName(metricKey) {
        return metricTitleMapping[metricKey] || metricKey;
      }

      // State and data
      let metricList = [];
      let runList = [];
      let runOrder = [];
      const dataByMetric = new Map(); // metric => { run => [{step,value}] }
      let isRankStrictFlag = false;
      let rankTickMax = 1;

      // Scales and layout
      let width = 800, height = 360;
      let margin = { top: 16, right: 28, bottom: 56, left: 64 };
      let xScale = d3.scaleLinear();
      let yScale = d3.scaleLinear();

      // Line generators - simple linear connections
      const lineGen = d3.line()
        .x((d) => xScale(d.step))
        .y((d) => yScale(d.value));

      // Function to draw different marker shapes
      function drawMarker(selection, shape, size) {
        const s = size / 2;
        switch (shape) {
          case 'circle':
            return selection.append('circle').attr('r', s);
          case 'square':
            return selection.append('rect').attr('x', -s).attr('y', -s).attr('width', size).attr('height', size);
          case 'triangle':
            return selection.append('path').attr('d', `M0,${-s * 1.2} L${s * 1.1},${s * 0.6} L${-s * 1.1},${s * 0.6} Z`);
          case 'diamond':
            return selection.append('path').attr('d', `M0,${-s * 1.2} L${s * 1.1},0 L0,${s * 1.2} L${-s * 1.1},0 Z`);
          case 'inverted-triangle':
            return selection.append('path').attr('d', `M0,${s * 1.2} L${s * 1.1},${-s * 0.6} L${-s * 1.1},${-s * 0.6} Z`);
          default:
            return selection.append('circle').attr('r', s);
        }
      }

      // Small SVG markup for marker shape (used in tooltip)
      function shapeSvgMarkup(shape, color) {
        const size = 9; // visual marker size
        const half = size / 2;
        const cx = 9, cy = 7; // center for 18x14 viewport
        const stroke = color;
        switch (shape) {
          case 'circle':
            return `<svg width="18" height="14" viewBox="0 0 18 14" aria-hidden="true"><g transform="translate(${cx},${cy})"><circle r="${half}" fill="${color}" stroke="${stroke}" stroke-width="1"/></g></svg>`;
          case 'square':
            return `<svg width="18" height="14" viewBox="0 0 18 14" aria-hidden="true"><g transform="translate(${cx},${cy})"><rect x="${-half}" y="${-half}" width="${size}" height="${size}" fill="${color}" stroke="${stroke}" stroke-width="1"/></g></svg>`;
          case 'triangle':
            return `<svg width="18" height="14" viewBox="0 0 18 14" aria-hidden="true"><g transform="translate(${cx},${cy})"><path d="M0,${-half * 1.2} L${half * 1.1},${half * 0.6} L${-half * 1.1},${half * 0.6} Z" fill="${color}" stroke="${stroke}" stroke-width="1"/></g></svg>`;
          case 'diamond':
            return `<svg width="18" height="14" viewBox="0 0 18 14" aria-hidden="true"><g transform="translate(${cx},${cy})"><path d="M0,${-half * 1.2} L${half * 1.1},0 L0,${half * 1.2} L${-half * 1.1},0 Z" fill="${color}" stroke="${stroke}" stroke-width="1"/></g></svg>`;
          case 'inverted-triangle':
            return `<svg width="18" height="14" viewBox="0 0 18 14" aria-hidden="true"><g transform="translate(${cx},${cy})"><path d="M0,${half * 1.2} L${half * 1.1},${-half * 0.6} L${-half * 1.1},${-half * 0.6} Z" fill="${color}" stroke="${stroke}" stroke-width="1"/></g></svg>`;
          default:
            return `<svg width="18" height="14" viewBox="0 0 18 14" aria-hidden="true"><g transform="translate(${cx},${cy})"><circle r="${half}" fill="${color}" stroke="${stroke}" stroke-width="1"/></g></svg>`;
        }
      }

      // Hover elements
      const hoverLine = gHover.append('line').attr('stroke-width', 1);

      const overlay = gHover.append('rect').attr('fill', 'transparent').style('cursor', 'crosshair');

      function updateScales() {
        const isDark = document.documentElement.getAttribute('data-theme') === 'dark';
        const axisColor = isDark ? 'rgba(255,255,255,0.25)' : 'rgba(0,0,0,0.25)';
        const tickColor = isDark ? 'rgba(255,255,255,0.70)' : 'rgba(0,0,0,0.55)';
        const gridColor = isDark ? 'rgba(255,255,255,0.08)' : 'rgba(0,0,0,0.05)';

        width = container.clientWidth || 800;
        height = Math.max(360, Math.round(width / 2.2));
        svg.attr('width', width).attr('height', height);

        const innerWidth = width - margin.left - margin.right;
        const innerHeight = height - margin.top - margin.bottom;
        gRoot.attr('transform', `translate(${margin.left},${margin.top})`);

        // Responsive legend layout like against-baselines-deduplicated
        try {
          const shouldWrapLegend = width < 1300;
          if (legendInline && legendInline.style) {
            legendInline.style.flexWrap = shouldWrapLegend ? 'wrap' : 'nowrap';
            legendInline.style.rowGap = shouldWrapLegend ? '4px' : '';
            legendInline.style.maxWidth = shouldWrapLegend ? Math.max(280, Math.round(width * 0.62)) + 'px' : 'unset';
            legendInline.style.alignItems = shouldWrapLegend ? 'flex-start' : 'center';
          }
        } catch {}

        // Mobile layout: stack legend above select, allow legend to take full width
        try {
          const isMobile = width < 640;
          if (controls && controls.style && labelMetric && labelMetric.style) {
            controls.style.flexDirection = isMobile ? 'column' : 'row';
            controls.style.alignItems = isMobile ? 'flex-start' : 'center';
            labelMetric.style.marginLeft = isMobile ? '0' : 'auto';
            if (legendInline && legendInline.style) {
              legendInline.style.width = isMobile ? '100%' : '';
              legendInline.style.justifyContent = isMobile ? 'flex-start' : '';
            }
          }
        } catch {}

        xScale.range([0, innerWidth]);
        yScale.range([innerHeight, 0]);

        // Compute Y ticks
        let yTicks = [];
        if (isRankStrictFlag) {
          const maxR = Math.max(1, Math.round(rankTickMax));
          for (let v = 1; v <= maxR; v += 1) yTicks.push(v);
        } else {
          // Use D3's tick generator to produce nice floating-point ticks
          yTicks = yScale.ticks(6);
        }

        // Grid (horizontal)
        gGrid.selectAll('*').remove();
        gGrid.selectAll('line')
          .data(yTicks)
          .join('line')
          .attr('x1', 0)
          .attr('x2', innerWidth)
          .attr('y1', (d) => yScale(d))
          .attr('y2', (d) => yScale(d))
          .attr('stroke', gridColor)
          .attr('stroke-width', 1)
          .attr('shape-rendering', 'crispEdges');

        // Axes
        gAxes.selectAll('*').remove();
        let xAxis = d3.axisBottom(xScale).tickSizeOuter(0);
        const isMobileTicks = width < 640;
        const tfMobile = (d) => {
          const abs = Math.abs(d);
          if (abs >= 1000) {
            const v = d / 1000;
            const out = Math.abs(v) >= 10 ? Math.round(v) : +v.toFixed(1);
            return out + 'k';
          }
          return d3.format('d')(d);
        };
        if (isRankStrictFlag) {
          const [dx0, dx1] = xScale.domain();
          const start = Math.ceil(dx0 / 1000) * 1000;
          const end = Math.floor(dx1 / 1000) * 1000;
          const xTicks = [];
          for (let v = start; v <= end; v += 1000) xTicks.push(v);
          if (xTicks.length === 0) xTicks.push(Math.round(dx0));
          xAxis = xAxis.tickValues(xTicks).tickFormat(isMobileTicks ? tfMobile : d3.format('d'));
        } else {
          xAxis = xAxis.ticks(8);
          if (isMobileTicks) xAxis = xAxis.tickFormat(tfMobile);
        }
        const yAxis = d3.axisLeft(yScale)
          .tickValues(yTicks)
          .tickSizeOuter(0)
          .tickFormat(isRankStrictFlag ? d3.format('d') : d3.format('.2f'));
        gAxes.append('g')
          .attr('transform', `translate(0,${innerHeight})`)
          .call(xAxis)
          .call((g) => {
            g.selectAll('path, line').attr('stroke', axisColor);
            g.selectAll('text').attr('fill', tickColor).style('font-size', '12px');
          });
        gAxes.append('g')
          .call(yAxis)
          .call((g) => {
            g.selectAll('path, line').attr('stroke', axisColor);
            g.selectAll('text').attr('fill', tickColor).style('font-size', '12px');
          });

        // Axis labels (X and Y)
        gAxes.append('text')
          .attr('class', 'axis-label axis-label--x')
          .attr('x', innerWidth / 2)
          .attr('y', innerHeight + 44)
          .attr('text-anchor', 'middle')
          .style('font-size', '12px')
          .style('fill', tickColor)
          .text('Step');
        gAxes.append('text')
          .attr('class', 'axis-label axis-label--y')
          .attr('text-anchor', 'middle')
          .attr('transform', `translate(${-44},${innerHeight/2}) rotate(-90)`) 
          .style('font-size', '12px')
          .style('fill', tickColor)
          .text('Value');

        overlay.attr('x', 0).attr('y', 0).attr('width', innerWidth).attr('height', innerHeight);
        hoverLine.attr('y1', 0).attr('y2', innerHeight).attr('stroke', axisColor);

        // Legend placeholder; actual content set in renderMetric
        const legendWidth = Math.min(180, Math.max(120, Math.round(innerWidth * 0.22)));
        const legendHeight = 64;
        gLegend
          .attr('x', innerWidth - legendWidth + 42)
          .attr('y', innerHeight - legendHeight - 12)
          .attr('width', legendWidth)
          .attr('height', legendHeight);
        const legendRoot = gLegend.selectAll('div').data([0]).join('xhtml:div');
        Object.assign(legendRoot.node().style, {
          background: 'transparent',
          border: 'none',
          borderRadius: '0',
          padding: '0',
          fontSize: '12px',
          lineHeight: '1.35',
          color: 'var(--text-color)'
        });

        // Mobile layout: stack legend above select, allow legend to take full width
        try {
          const isMobile = width < 640;
          if (controls && controls.style && labelMetric && labelMetric.style) {
            controls.style.flexDirection = isMobile ? 'column' : 'row';
            controls.style.alignItems = isMobile ? 'flex-start' : 'center';
            labelMetric.style.marginLeft = isMobile ? '0' : 'auto';
            if (legendInline && legendInline.style) {
              legendInline.style.width = isMobile ? '100%' : '';
              legendInline.style.justifyContent = isMobile ? 'flex-start' : '';
            }
          }
        } catch {}

        return { innerWidth, innerHeight };
      }

      function renderMetric(metricKey){
        const map = dataByMetric.get(metricKey) || {};
        const runs = runOrder;
        // Domain
        let minStep = Infinity, maxStep = -Infinity, maxVal = 0, minVal = Infinity;
        const isRank = /rank/i.test(metricKey);
        const isAverage = /average/i.test(metricKey);
        const isRankStrict = isRank && !isAverage;
        runs.forEach(r => {
          const arr = map[r] || [];
          arr.forEach(pt => {
            const val = isRankStrict ? Math.round(pt.value) : pt.value;
            minStep = Math.min(minStep, pt.step);
            maxStep = Math.max(maxStep, pt.step);
            maxVal = Math.max(maxVal, val);
            minVal = Math.min(minVal, val);
          });
        });
        if (!isFinite(minStep) || !isFinite(maxStep)) { return; }
        xScale.domain([minStep, maxStep]);
        if (isRank) {
          rankTickMax = Math.max(1, Math.round(maxVal));
          yScale.domain([rankTickMax, 1]);
        } else {
          yScale.domain([minVal, maxVal]).nice();
        }
        isRankStrictFlag = isRankStrict;

        const { innerWidth, innerHeight } = updateScales();

        // Bind lines and markers
        const series = runs.map((r, i) => ({
          run: r,
          color: pool[i % pool.length],
          marker: markerShapes[i % markerShapes.length],
          values: (map[r]||[])
            .slice()
            .sort((a,b)=>a.step-b.step)
            .map(pt => isRankStrict ? { step: pt.step, value: Math.round(pt.value), stderr: pt.stderr } : pt)
        }));

        // Uncertainty area (± stderr) for non-rank metrics
        gAreas.selectAll('*').remove();
        if (!isRank) {
          series.forEach((s) => {
            const withErr = s.values.filter(v => v && v.stderr != null && isFinite(v.stderr) && v.stderr > 0 && isFinite(v.value));
            if (withErr.length === 0) return;
            const upper = withErr.map(d => [xScale(d.step), yScale(d.value + d.stderr)]);
            const lower = withErr.slice().reverse().map(d => [xScale(d.step), yScale(d.value - d.stderr)]);
            const coords = upper.concat(lower);
            const pathData = d3.line().x(d=>d[0]).y(d=>d[1]).curve(d3.curveLinearClosed)(coords);
            gAreas.append('path')
              .attr('d', pathData)
              .attr('fill', s.color)
              .attr('opacity', 0.15)
              .attr('stroke', 'none');
          });
        }

        // Draw lines
        const paths = gLines.selectAll('path.run-line').data(series, d=>d.run);
        paths.enter().append('path').attr('class','run-line').attr('fill','none').attr('stroke-width',2)
          .attr('stroke', d=>d.color).attr('opacity',0.9)
          .attr('d', d=>lineGen(d.values))
          .merge(paths)
          .transition().duration(200)
          .attr('stroke', d=>d.color)
          .attr('d', d=>lineGen(d.values));
        paths.exit().remove();

        // Draw markers for each data point
        gPoints.selectAll('*').remove();
        series.forEach((s, seriesIndex) => {
          const pointGroup = gPoints.selectAll(`.points-${seriesIndex}`)
            .data(s.values)
            .join('g')
            .attr('class', `points-${seriesIndex}`)
            .attr('transform', d => `translate(${xScale(d.step)},${yScale(d.value)})`);
          
          drawMarker(pointGroup, s.marker, markerSize)
            .attr('fill', s.color)
            .attr('stroke', s.color)
            .attr('stroke-width', 1.5)
            .style('cursor', 'crosshair');
        });

        // Inline legend content with marker shapes
        legendInline.innerHTML = '';
        series.forEach(s => {
          const legendItem = document.createElement('span');
          legendItem.style.cssText = 'display:inline-flex;align-items:center;gap:6px;white-space:nowrap;';
          
          // Create small SVG for marker shape
          const markerSvg = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
          markerSvg.setAttribute('width', '18');
          markerSvg.setAttribute('height', '14');
          markerSvg.style.display = 'inline-block';
          
          const g = document.createElementNS('http://www.w3.org/2000/svg', 'g');
          g.setAttribute('transform', 'translate(9,7)');
          
          let shape;
          const size = 9;
          const halfSize = size / 2;
          switch(s.marker) {
            case 'circle':
              shape = document.createElementNS('http://www.w3.org/2000/svg', 'circle');
              shape.setAttribute('r', halfSize);
              break;
            case 'square':
              shape = document.createElementNS('http://www.w3.org/2000/svg', 'rect');
              shape.setAttribute('x', -halfSize);
              shape.setAttribute('y', -halfSize);
              shape.setAttribute('width', size);
              shape.setAttribute('height', size);
              break;
            case 'triangle':
              shape = document.createElementNS('http://www.w3.org/2000/svg', 'path');
              shape.setAttribute('d', `M0,${-halfSize * 1.2} L${halfSize * 1.1},${halfSize * 0.6} L${-halfSize * 1.1},${halfSize * 0.6} Z`);
              break;
            case 'diamond':
              shape = document.createElementNS('http://www.w3.org/2000/svg', 'path');
              shape.setAttribute('d', `M0,${-halfSize * 1.2} L${halfSize * 1.1},0 L0,${halfSize * 1.2} L${-halfSize * 1.1},0 Z`);
              break;
            case 'inverted-triangle':
              shape = document.createElementNS('http://www.w3.org/2000/svg', 'path');
              shape.setAttribute('d', `M0,${halfSize * 1.2} L${halfSize * 1.1},${-halfSize * 0.6} L${-halfSize * 1.1},${-halfSize * 0.6} Z`);
              break;
            default:
              shape = document.createElementNS('http://www.w3.org/2000/svg', 'circle');
              shape.setAttribute('r', halfSize);
          }
          shape.setAttribute('fill', s.color);
          shape.setAttribute('stroke', s.color);
          shape.setAttribute('stroke-width', '1');
          
          g.appendChild(shape);
          markerSvg.appendChild(g);
          
          const label = document.createElement('span');
          label.textContent = s.run;
          
          legendItem.appendChild(markerSvg);
          legendItem.appendChild(label);
          legendInline.appendChild(legendItem);
        });

        // Hover
        const stepSet = new Set(); series.forEach(s=>s.values.forEach(v=>stepSet.add(v.step)));
        const steps = Array.from(stepSet).sort((a,b)=>a-b);
        function onMove(event){
          const [mx, my] = d3.pointer(event, overlay.node());
          const sx = Math.max(steps[0], Math.min(steps[steps.length-1], Math.round(xScale.invert(mx)/1)*1));
          const nearest = steps.reduce((best, s)=> Math.abs(s - xScale.invert(mx)) < Math.abs(best - xScale.invert(mx)) ? s : best, steps[0]);
          const xpx = xScale(nearest);
          const isDark = document.documentElement.getAttribute('data-theme') === 'dark';
          const axisColor = isDark ? 'rgba(255,255,255,0.25)' : 'rgba(0,0,0,0.25)';
          hoverLine.attr('x1', xpx).attr('x2', xpx).style('display', null).attr('stroke', axisColor);
          // Tooltip content
          let html = `<div><strong>${getMetricDisplayName(metricKey)}</strong></div><div><strong>step</strong> ${nearest}</div>`;
          const seriesWithPoint = series
            .map(s => {
              const m = new Map(s.values.map(v=>[v.step, v]));
              const pt = m.get(nearest);
              return { s, pt };
            })
            .filter(d => d.pt && d.pt.value != null);
          // Sort runs at hovered step
          seriesWithPoint.sort((a,b) => {
            if (isRankStrict) return (b.pt.value - a.pt.value); // rank: descendant
            return (a.pt.value - b.pt.value); // normal: ascendant
          });
          seriesWithPoint.forEach(({s, pt}) => {
            const formatVal = (vv) => (isRankStrict ? d3.format('d')(vv) : (+vv).toFixed(4));
            const errTxt = (pt.stderr != null && isFinite(pt.stderr) && pt.stderr > 0) ? ` ± ${formatVal(pt.stderr)}` : '';
            html += `<div style=\"display:flex;align-items:center;gap:6px;white-space:nowrap;\">${shapeSvgMarkup(s.marker, s.color)}<strong>${s.run}</strong> ${formatVal(pt.value)}${errTxt}</div>`;
          });
          tipInner.innerHTML = html;
          const offsetX = 12, offsetY = 12;
          tip.style.opacity = '1'; tip.style.transform = `translate(${Math.round(mx + offsetX + margin.left)}px, ${Math.round(my + offsetY + margin.top)}px)`;
        }
        function onLeave(){ tip.style.opacity='0'; tip.style.transform='translate(-9999px, -9999px)'; hoverLine.style('display','none'); }
        overlay.on('mousemove', onMove).on('mouseleave', onLeave);
      }

      // (old hover removed; hover is attached in renderMetric)

      // Load CSV and wire controls
      (async () => {
        try {
          const text = await fetchFirstAvailable(CSV_PATHS);
          const rows = d3.csvParse(text, d => ({
            run: (d.run||'').trim(),
            step: +d.step,
            metric: (d.metric||'').trim(),
            value: +d.value,
            stderr: (d.stderr != null && d.stderr !== '') ? +d.stderr : null
          }));
          metricList = Array.from(new Set(rows.map(r=>r.metric))).sort();
          runList = Array.from(new Set(rows.map(r=>r.run))).sort();
          // Prioritize "FineVision" first in legend/order
          const hasFV = runList.includes('FineVision');
          runOrder = hasFV ? ['FineVision', ...runList.filter(r => r !== 'FineVision')] : runList;
          // Build dataByMetric
          metricList.forEach(m => {
            const map = {};
            runList.forEach(r => { map[r] = []; });
            rows.filter(r=>r.metric===m).forEach(r => { if (!isNaN(r.step) && !isNaN(r.value)) map[r.run].push({ step:r.step, value:r.value, stderr:r.stderr }); });
            dataByMetric.set(m, map);
          });

          // Populate metric select (default to average_rank if present)
          metricList.forEach((m)=>{ const o=document.createElement('option'); o.value=m; o.textContent=getMetricDisplayName(m); selectMetric.appendChild(o); });
          const def = metricList.find(m => /average_rank/i.test(m)) || metricList[0];
          if (def) selectMetric.value = def;

          container.appendChild(controls);
          updateScales();
          renderMetric(selectMetric.value);

          selectMetric.addEventListener('change', ()=>{ renderMetric(selectMetric.value); });

          const rerender = () => { renderMetric(selectMetric.value); };
          if (window.ResizeObserver) { const ro = new ResizeObserver(()=>rerender()); ro.observe(container); } else { window.addEventListener('resize', rerender); }
        } catch (e) {
          const pre = document.createElement('pre'); pre.textContent = 'CSV load error: ' + (e && e.message ? e.message : e);
          pre.style.color = 'var(--danger, #b00020)'; pre.style.fontSize = '12px'; pre.style.whiteSpace = 'pre-wrap';
          container.appendChild(pre);
        }
      })();
    };

    if (document.readyState === 'loading') {
      document.addEventListener('DOMContentLoaded', () => ensureD3(bootstrap), { once: true });
    } else { ensureD3(bootstrap); }
  })();
</script>