<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      width: 100%;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      background: #ffffff;
      color: #1e2945;
      padding: 12px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .card-box {
      border-radius: 10px;
      padding: 12px 14px;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      position: relative;
    }

    .card-bad {
      border-left: 4px solid #ef4444;
    }

    .card-good {
      border-left: 4px solid #10b981;
      background: #f0fdf4;
    }

    .card-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 8px;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .status-bad {
      color: #dc2626;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    .status-good {
      color: #059669;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    .badge {
      width: 18px;
      height: 18px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      font-weight: 800;
      color: #fff;
    }

    .badge-bad { background: #ef4444; }
    .badge-good { background: #10b981; }

    .example-grid {
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      line-height: 1.4;
    }

    .text-column {
      background: #ffffff;
      padding: 8px 10px;
      border-radius: 6px;
      border: 1px solid #e2e8f0;
      font-family: Georgia, serif;
    }

    .underlined-weak {
      text-decoration: underline wavy #ef4444;
      text-underline-offset: 3px;
    }

    .underlined-anchor {
      background: #fef08a;
      padding: 1px 4px;
      border-radius: 3px;
      font-weight: 600;
      color: #854d0e;
      border-bottom: 2px solid #eab308;
    }

    .margin-column {
      background: #ffffff;
      padding: 8px 10px;
      border-radius: 6px;
      border: 1px dashed #cbd5e1;
      font-size: 13px;
      font-style: italic;
    }

    .margin-bad {
      color: #ef4444;
      border-color: #fca5a5;
    }

    .margin-good {
      color: #047857;
      border-color: #86efac;
      font-style: normal;
      font-weight: 600;
    }

    .link-arrow {
      color: #94a3b8;
      font-size: 16px;
      text-align: center;
      user-select: none;
    }

    .formula-footer {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 8px;
      background: #e0f2fe;
      border: 1px solid #bae6fd;
      border-radius: 8px;
      font-size: 13px;
      font-weight: 700;
      color: #0369a1;
    }

    .tag-anchor {
      background: #fef08a;
      color: #854d0e;
      padding: 2px 8px;
      border-radius: 4px;
      border: 1px solid #facc15;
    }

    .tag-insight {
      background: #dcfce7;
      color: #15803d;
      padding: 2px 8px;
      border-radius: 4px;
      border: 1px solid #86efac;
    }

    .label-guide {
      display: flex;
      justify-content: space-between;
      margin-top: 4px;
      font-size: 11px;
      font-weight: 600;
      color: #64748b;
    }
  </style>
</head>
<body>

  
  <div class="card-box card-bad">
    <div class="card-header">
      <span class="status-bad">Vague Reaction</span>
      <span class="badge badge-bad">✕</span>
    </div>
    <div class="example-grid">
      <div class="text-column">
        ...held by the <span class="underlined-weak">steel cage of habit</span> daily.
      </div>
      <div class="link-arrow">→</div>
      <div class="margin-column margin-bad">
        "wow!!"
      </div>
    </div>
  </div>

  
  <div class="card-box card-good">
    <div class="card-header">
      <span class="status-good">Anchor + Insight Formula</span>
      <span class="badge badge-good">✓</span>
    </div>
    <div class="example-grid">
      <div class="text-column">
        ...held by the <span class="underlined-anchor">steel cage of habit</span> daily.
      </div>
      <div class="link-arrow" style="color:#10b981;">⤑</div>
      <div class="margin-column margin-good">
        Metaphor → shows trapped feeling
      </div>
    </div>
    <div class="label-guide">
      <span>▲ <strong>Anchor</strong> (Evidence)</span>
      <span>▲ <strong>Insight</strong> (Meaning)</span>
    </div>
  </div>

  
  <div class="formula-footer">
    <span class="tag-anchor">Anchor</span>
    <span>+</span>
    <span class="tag-insight">Insight</span>
    <span>=</span>
    <span>Targeted Marginalia</span>
  </div>

</body>
</html>

Purposeful Annotation Codes and Marginalia Systems

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      color: #1e2945;
      background: #ffffff;
      padding: 12px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      min-height: 100%;
    }

    /* Top Controls */
    .nav-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
      flex-wrap: wrap;
    }
    .filters {
      display: flex;
      gap: 6px;
      flex-wrap: wrap;
    }
    .btn-tag {
      background: #f1f5f9;
      border: 1.5px solid #cbd5e1;
      border-radius: 6px;
      padding: 5px 10px;
      font-size: 13px;
      font-weight: 600;
      color: #475569;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 5px;
      transition: all 0.2s ease;
    }
    .btn-tag:hover { background: #e2e8f0; }
    .btn-tag.active {
      color: #ffffff;
      border-color: transparent;
    }
    .btn-tag[data-type="all"].active { background: #334155; }
    .btn-tag[data-type="claim"].active { background: #2563eb; }
    .btn-tag[data-type="evidence"].active { background: #d97706; }
    .btn-tag[data-type="device"].active { background: #7c3aed; }

    /* Main Workspace Layout */
    .workspace {
      display: grid;
      grid-template-columns: 1.2fr 0.9fr;
      gap: 14px;
      align-items: stretch;
      flex: 1;
    }

    @media (max-width: 540px) {
      .workspace {
        grid-template-columns: 1fr;
        gap: 10px;
      }
    }

    /* Passage Area */
    .passage-card {
      background: #fdfdfd;
      border: 1.5px solid #e2e8f0;
      border-radius: 8px;
      padding: 16px 14px;
      font-size: 15px;
      line-height: 1.85;
      position: relative;
      display: flex;
      flex-direction: column;
      justify-content: center;
      gap: 10px;
    }

    .passage-title {
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      color: #94a3b8;
      margin-bottom: -4px;
    }

    /* Annotation Markups */
    .annot-claim {
      border: 2px solid #2563eb;
      border-radius: 4px;
      padding: 2px 5px;
      background: rgba(37, 99, 235, 0.07);
      cursor: pointer;
      transition: all 0.25s ease;
      display: inline;
    }

    .annot-evidence {
      border-bottom: 2.5px solid #d97706;
      padding-bottom: 1px;
      cursor: pointer;
      transition: all 0.25s ease;
      font-weight: 500;
    }
    .star-icon {
      color: #d97706;
      font-weight: bold;
      margin-right: 2px;
    }

    .circle-item {
      border: 1.5px dashed #7c3aed;
      border-radius: 12px;
      padding: 1px 6px;
      background: rgba(124, 58, 237, 0.07);
      display: inline-block;
      transition: all 0.25s ease;
    }

    .annot-device {
      cursor: pointer;
      transition: all 0.25s ease;
    }

    /* Marginalia Callouts */
    .margin-notes {
      display: flex;
      flex-direction: column;
      gap: 8px;
      justify-content: space-between;
    }

    .note-card {
      background: #f8fafc;
      border-radius: 8px;
      padding: 10px 12px;
      border: 1.5px solid #e2e8f0;
      border-left-width: 4px;
      cursor: pointer;
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      gap: 3px;
    }

    .note-card[data-type="claim"] { border-left-color: #2563eb; }
    .note-card[data-type="evidence"] { border-left-color: #d97706; }
    .note-card[data-type="device"] { border-left-color: #7c3aed; }

    .note-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.4px;
    }
    .note-card[data-type="claim"] .note-header { color: #2563eb; }
    .note-card[data-type="evidence"] .note-header { color: #d97706; }
    .note-card[data-type="device"] .note-header { color: #7c3aed; }

    .note-text {
      font-size: 13.5px;
      font-weight: 500;
      color: #334155;
      line-height: 1.35;
    }

    /* Dimmed and Highlighted States */
    .dimmed {
      opacity: 0.35;
    }
    .focused {
      opacity: 1;
    }
    .note-card.focused {
      background: #ffffff;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
      border-color: #cbd5e1;
    }
    .note-card[data-type="claim"].focused { border-left-color: #2563eb; }
    .note-card[data-type="evidence"].focused { border-left-color: #d97706; }
    .note-card[data-type="device"].focused { border-left-color: #7c3aed; }

    .annot-claim.focused { background: rgba(37, 99, 235, 0.16); box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.3); }
    .annot-evidence.focused { background: rgba(217, 119, 6, 0.14); }
    .annot-device.focused .circle-item { background: rgba(124, 58, 237, 0.18); border-style: solid; }
  </style>
</head>
<body>

  <div class="nav-bar">
    <div class="filters">
      <button class="btn-tag active" data-type="all" onclick="selectType('all')">Show All</button>
      <button class="btn-tag" data-type="claim" onclick="selectType('claim')">▢ Claim</button>
      <button class="btn-tag" data-type="evidence" onclick="selectType('evidence')">★ Evidence</button>
      <button class="btn-tag" data-type="device" onclick="selectType('device')">◯ Metaphor</button>
    </div>
  </div>

  <div class="workspace">
    
    <div class="passage-card">
      <div class="passage-title">Annotated Text</div>
      <p>
        <span class="annot-claim" data-type="claim" onclick="selectType('claim')">[Cities must replace asphalt roofs with rooftop gardens immediately.]</span>
        <br style="line-height: 2.2;">
        <span class="annot-evidence" data-type="evidence" onclick="selectType('evidence')"><span class="star-icon">★</span>In Chicago, green roofs lowered surface temperatures by up to 70 degrees</span>,
        <span class="annot-device" data-type="device" onclick="selectType('device')">
          acting like <span class="circle-item">◯ living ice packs ◯</span> across <span class="circle-item">◯ concrete deserts ◯</span>.
        </span>
      </p>
    </div>

    
    <div class="margin-notes">
      <div class="note-card" data-type="claim" onclick="selectType('claim')">
        <div class="note-header">
          <span>1. Main Claim</span>
          <span>▢</span>
        </div>
        <div class="note-text">Argues for mandatory green roofs</div>
      </div>

      <div class="note-card" data-type="evidence" onclick="selectType('evidence')">
        <div class="note-header">
          <span>2. Data Evidence</span>
          <span>★</span>
        </div>
        <div class="note-text">70° drop proves cooling claim</div>
      </div>

      <div class="note-card" data-type="device" onclick="selectType('device')">
        <div class="note-header">
          <span>3. Simile &amp; Metaphor</span>
          <span>◯</span>
        </div>
        <div class="note-text">Contrasts alive/cool vs dead/hot city</div>
      </div>
    </div>
  </div>

  <script>
    let activeType = 'all';

    function selectType(type) {
      activeType = type;

      // Update Filter Buttons
      document.querySelectorAll('.btn-tag').forEach(btn => {
        btn.classList.toggle('active', btn.getAttribute('data-type') === type);
      });

      // Update Annotations and Margin Notes
      const annotElements = document.querySelectorAll('.annot-claim, .annot-evidence, .annot-device');
      const noteCards = document.querySelectorAll('.note-card');

      if (type === 'all') {
        annotElements.forEach(el => {
          el.classList.remove('dimmed', 'focused');
        });
        noteCards.forEach(el => {
          el.classList.remove('dimmed', 'focused');
        });
      } else {
        annotElements.forEach(el => {
          const match = el.getAttribute('data-type') === type;
          el.classList.toggle('focused', match);
          el.classList.toggle('dimmed', !match);
        });

        noteCards.forEach(el => {
          const match = el.getAttribute('data-type') === type;
          el.classList.toggle('focused', match);
          el.classList.toggle('dimmed', !match);
        });
      }
    }
  </script>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      background: #f8f9fa;
      color: #1e2945;
      padding: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 100%;
    }

    .toolbar {
      display: flex;
      gap: 8px;
      margin-bottom: 12px;
      background: #e2e8f0;
      padding: 3px;
      border-radius: 8px;
    }

    .tab-btn {
      border: none;
      background: transparent;
      padding: 6px 14px;
      font-size: 13px;
      font-weight: 600;
      color: #64748b;
      border-radius: 6px;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .tab-btn.active {
      background: #ffffff;
      color: #2563eb;
      box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    }

    .comparison-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      width: 100%;
      max-width: 600px;
    }

    @media (max-width: 440px) {
      .comparison-grid {
        grid-template-columns: 1fr;
      }
    }

    .page-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 10px;
      padding: 12px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      position: relative;
      overflow: hidden;
      min-height: 220px;
    }

    .page-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid #f1f5f9;
      padding-bottom: 6px;
    }

    .page-title {
      font-size: 13px;
      font-weight: 700;
      color: #334155;
    }

    .page-body {
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: center;
      gap: 7px;
      position: relative;
    }

    /* Skeleton Text Lines */
    .line {
      height: 10px;
      border-radius: 4px;
      background: #e2e8f0;
      width: 100%;
      transition: all 0.3s ease;
    }

    .line.short { width: 65%; }
    .line.med { width: 85%; }

    /* Passive Highlighting */
    .passive .line {
      background: #fef08a;
      box-shadow: 0 0 0 3px #fef08a;
    }

    /* Active Annotation Elements */
    .boxed-line {
      border: 2px solid #2563eb;
      border-radius: 4px;
      padding: 2px;
      background: transparent !important;
      box-shadow: none !important;
    }

    .circled-line {
      border: 2px solid #16a34a;
      border-radius: 12px;
      padding: 2px 4px;
      background: transparent !important;
      box-shadow: none !important;
      width: 75%;
    }

    .underlined-line {
      border-bottom: 2.5px solid #d97706;
      border-radius: 0;
      background: #e2e8f0 !important;
      box-shadow: none !important;
    }

    .margin-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 6px;
    }

    .margin-tag {
      font-size: 10px;
      font-weight: 700;
      color: #2563eb;
      white-space: nowrap;
      background: #eff6ff;
      padding: 2px 5px;
      border-radius: 4px;
      border: 1px dashed #93c5fd;
    }

    .margin-tag.green {
      color: #16a34a;
      background: #f0fdf4;
      border-color: #86efac;
    }

    /* Recall State Overlay */
    .recall-overlay {
      position: absolute;
      inset: 0;
      background: rgba(255, 255, 255, 0.95);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      gap: 6px;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s ease;
      padding: 8px;
    }

    .recall-overlay.visible {
      opacity: 1;
      pointer-events: auto;
    }

    .recall-icon {
      font-size: 26px;
    }

    .recall-text {
      font-size: 12px;
      font-weight: 700;
    }

    .status-badge {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 6px 10px;
      border-radius: 6px;
      font-size: 11px;
      font-weight: 700;
    }

    .badge-passive {
      background: #fef2f2;
      color: #dc2626;
      border: 1px solid #fecaca;
    }

    .badge-active {
      background: #f0fdf4;
      color: #16a34a;
      border: 1px solid #bbf7d0;
    }
  </style>
</head>
<body>

  <div class="toolbar">
    <button class="tab-btn active" id="btnPage" onclick="setView('page')">Page View</button>
    <button class="tab-btn" id="btnRecall" onclick="setView('recall')">Memory Recall</button>
  </div>

  <div class="comparison-grid">
    
    <div class="page-card">
      <div class="page-header">
        <span class="page-title">Passive Highlighting</span>
        <span style="font-size: 13px;">⚠️</span>
      </div>
      
      <div class="page-body passive">
        <div class="line"></div>
        <div class="line med"></div>
        <div class="line"></div>
        <div class="line short"></div>
        <div class="line"></div>
      </div>

      <div class="recall-overlay" id="recallLeft">
        <span class="recall-icon">😵</span>
        <span class="recall-text" style="color: #dc2626;">Visual Noise</span>
        <span style="font-size: 10px; color: #64748b;">No core takeaways</span>
      </div>

      <div class="status-badge badge-passive">
        <span>Brain Confused</span>
        <span>0% Clarity</span>
      </div>
    </div>

    
    <div class="page-card">
      <div class="page-header">
        <span class="page-title">Active Annotation</span>
        <span style="font-size: 13px;">✓</span>
      </div>
      
      <div class="page-body">
        <div class="margin-wrap">
          <div class="line boxed-line"></div>
          <span class="margin-tag">Box = Claim</span>
        </div>
        <div class="line under-line underlined-line"></div>
        <div class="margin-wrap">
          <div class="line circled-line"></div>
          <span class="margin-tag green">Circle = Symbol</span>
        </div>
        <div class="line short underlined-line"></div>
        <div class="line med"></div>
      </div>

      <div class="recall-overlay" id="recallRight">
        <span class="recall-icon">💡</span>
        <span class="recall-text" style="color: #16a34a;">Clear Hierarchy</span>
        <span style="font-size: 10px; color: #64748b;">Claim + Metaphor stored</span>
      </div>

      <div class="status-badge badge-active">
        <span>Brain Engaged</span>
        <span>High Retention</span>
      </div>
    </div>
  </div>

  <script>
    function setView(view) {
      const isRecall = view === 'recall';
      document.getElementById('recallLeft').classList.toggle('visible', isRecall);
      document.getElementById('recallRight').classList.toggle('visible', isRecall);
      document.getElementById('btnPage').classList.toggle('active', !isRecall);
      document.getElementById('btnRecall').classList.toggle('active', isRecall);
    }
  </script>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }

    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      color: #1e2945;
      background: transparent;
      padding: 10px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(135px, 1fr));
      gap: 6px;
      width: 100%;
    }

    .tax-card {
      background: #f8f9fa;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      padding: 8px;
      cursor: pointer;
      display: flex;
      flex-direction: column;
      gap: 4px;
      transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
      position: relative;
      border-left: 4px solid var(--accent);
    }

    .tax-card:hover {
      background: #ffffff;
    }

    .tax-card.active {
      background: #ffffff;
      border-color: var(--accent);
      box-shadow: 0 0 0 1.5px var(--accent);
    }

    .c-claim { --accent: #f59e0b; }
    .c-evid  { --accent: #10b981; }
    .c-dev   { --accent: #8b5cf6; }
    .c-count { --accent: #f43f5e; }
    .c-quest { --accent: #0284c7; }

    .card-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .symbol-pill {
      font-size: 13px;
      font-weight: 700;
      color: var(--accent);
      background: rgba(0, 0, 0, 0.04);
      padding: 2px 5px;
      border-radius: 4px;
      font-family: ui-monospace, monospace;
      letter-spacing: -0.5px;
    }

    .card-label {
      font-size: 12px;
      font-weight: 700;
      color: #1e2945;
      line-height: 1.1;
    }

    .card-example {
      font-size: 11px;
      color: #475569;
      font-family: ui-monospace, monospace;
      background: rgba(255, 255, 255, 0.8);
      padding: 3px 5px;
      border-radius: 4px;
      border: 1px dashed #cbd5e1;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    /* Live Annotated Preview Box */
    .preview-box {
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      padding: 10px 12px;
      font-size: 13px;
      line-height: 1.45;
      color: #334155;
      position: relative;
    }

    .preview-header {
      font-size: 10px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      color: #64748b;
      margin-bottom: 6px;
      display: flex;
      justify-content: space-between;
    }

    .anno {
      border-radius: 3px;
      padding: 1px 3px;
      transition: background 0.2s ease, color 0.2s ease, opacity 0.2s ease;
      font-weight: 500;
    }

    .anno .tag {
      font-family: ui-monospace, monospace;
      font-weight: 700;
      font-size: 11px;
      margin-right: 2px;
    }

    .anno.dimmed {
      opacity: 0.35;
    }

    .anno.highlight.c-claim { background: rgba(245, 158, 11, 0.25); color: #78350f; }
    .anno.highlight.c-evid  { background: rgba(16, 185, 129, 0.25); color: #064e3b; }
    .anno.highlight.c-dev   { background: rgba(139, 92, 246, 0.25); color: #4c1d95; }
    .anno.highlight.c-count { background: rgba(244, 63, 94, 0.25); color: #881337; }
    .anno.highlight.c-quest { background: rgba(2, 132, 199, 0.25); color: #0c4a6e; }

    .tag.c-claim { color: #d97706; }
    .tag.c-evid  { color: #059669; }
    .tag.c-dev   { color: #7c3aed; }
    .tag.c-count { color: #e11d48; }
    .tag.c-quest { color: #0284c7; }
  </style>
</head>
<body>

  
  <div class="preview-box">
    <div class="preview-header">
      <span>Sample Marginalia</span>
      <span id="hint">Tap a card to filter</span>
    </div>
    <div id="textSnippet">
      <span class="anno c-claim highlight" data-type="c-claim"><span class="tag c-claim">[C]★</span>Urban green roofs must be mandated.</span>
      <span class="anno c-dev highlight" data-type="c-dev"><span class="tag c-dev">[D]Δ</span>"Concrete deserts"</span> trap extreme heat, yet
      <span class="anno c-evid highlight" data-type="c-evid"><span class="tag c-evid">[E]<u>_</u></span>vegetation cuts surface temp by 70°</span>.
      <span class="anno c-count highlight" data-type="c-count"><span class="tag c-count">[CA]↔</span>Critics argue retrofits cost too much</span>;
      <span class="anno c-quest highlight" data-type="c-quest"><span class="tag c-quest">?</span>what about winter maintenance?</span>
    </div>
  </div>

  
  <div class="grid">
    <div class="tax-card c-claim active" data-type="c-claim">
      <div class="card-top">
        <span class="card-label">Claims</span>
        <span class="symbol-pill">[C] or ★</span>
      </div>
      <div class="card-example">[Cities must act on heat]</div>
    </div>

    <div class="tax-card c-evid active" data-type="c-evid">
      <div class="card-top">
        <span class="card-label">Evidence</span>
        <span class="symbol-pill">[E] or <u>_</u></span>
      </div>
      <div class="card-example">[E] 70° drop in temp</div>
    </div>

    <div class="tax-card c-dev active" data-type="c-dev">
      <div class="card-top">
        <span class="card-label">Devices</span>
        <span class="symbol-pill">[D] or Δ</span>
      </div>
      <div class="card-example">Δ concrete deserts</div>
    </div>

    <div class="tax-card c-count active" data-type="c-count">
      <div class="card-top">
        <span class="card-label">Counterargs</span>
        <span class="symbol-pill">[CA] or ↔</span>
      </div>
      <div class="card-example">[CA] ↔ Cost is too high</div>
    </div>

    <div class="tax-card c-quest active" data-type="c-quest">
      <div class="card-top">
        <span class="card-label">Questions</span>
        <span class="symbol-pill">?</span>
      </div>
      <div class="card-example">? Winter maintenance?</div>
    </div>
  </div>

  <script>
    const cards = document.querySelectorAll('.tax-card');
    const annos = document.querySelectorAll('.anno');
    const hint = document.getElementById('hint');
    let activeFilter = null;

    cards.forEach(card => {
      card.addEventListener('click', () => {
        const type = card.dataset.type;

        if (activeFilter === type) {
          // Reset to show all
          activeFilter = null;
          cards.forEach(c => c.classList.add('active'));
          annos.forEach(a => {
            a.classList.remove('dimmed');
            a.classList.add('highlight');
          });
          hint.textContent = 'Tap a card to filter';
        } else {
          // Focus single type
          activeFilter = type;
          cards.forEach(c => c.classList.toggle('active', c.dataset.type === type));
          annos.forEach(a => {
            const match = a.dataset.type === type;
            a.classList.toggle('highlight', match);
            a.classList.toggle('dimmed', !match);
          });
          hint.textContent = 'Tap again to show all';
        }
      });
    });
  </script>
</body>
</html>

OGE.8.CS.3

Aligned learning resources

Related diagrams