<!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: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      background: #f8fafc;
      color: #1e293b;
      padding: 12px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      user-select: none;
    }

    /* Column Headers */
    .header-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }
    .col-header {
      padding: 8px 10px;
      border-radius: 8px;
      font-size: 13px;
      font-weight: 700;
      text-align: center;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
    }
    .header-fr {
      background: #eff6ff;
      color: #1d4ed8;
      border: 1.5px solid #bfdbfe;
    }
    .header-cn {
      background: #fffbeb;
      color: #b45309;
      border: 1.5px solid #fde68a;
    }

    /* Comparison Rows */
    .comparison-list {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .row-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 10px;
      padding: 8px;
      display: flex;
      flex-direction: column;
      gap: 6px;
      transition: box-shadow 0.2s ease, border-color 0.2s ease;
      cursor: pointer;
    }
    .row-card:hover, .row-card.active {
      border-color: #94a3b8;
      box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    }

    .category-label {
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      color: #64748b;
      display: flex;
      align-items: center;
      gap: 4px;
      padding-left: 2px;
    }

    .row-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }

    .item-cell {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 8px 10px;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 600;
      line-height: 1.25;
    }

    .cell-fr {
      background: #f0f7ff;
      border-left: 3px solid #3b82f6;
      color: #1e3a8a;
    }

    .cell-cn {
      background: #fffdf5;
      border-left: 3px solid #f59e0b;
      color: #78350f;
    }

    .cell-icon {
      font-size: 18px;
      flex-shrink: 0;
    }

    .cell-text small {
      display: block;
      font-size: 10px;
      font-weight: 500;
      color: #64748b;
      margin-top: 1px;
    }

    /* Filter Controls */
    .controls {
      display: flex;
      justify-content: center;
      gap: 6px;
      margin-top: 2px;
    }
    .filter-btn {
      background: #ffffff;
      border: 1px solid #cbd5e1;
      color: #475569;
      padding: 4px 10px;
      border-radius: 20px;
      font-size: 11px;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.15s, color 0.15s, border-color 0.15s;
    }
    .filter-btn.active {
      background: #1e293b;
      color: #ffffff;
      border-color: #1e293b;
    }

    @media (max-width: 380px) {
      body { padding: 8px; gap: 8px; }
      .col-header { font-size: 12px; padding: 6px 8px; }
      .item-cell { font-size: 11px; padding: 6px 8px; }
      .cell-icon { font-size: 16px; }
    }
  </style>
</head>
<body>

  
  <div class="header-grid">
    <div class="col-header header-fr">
      <span>🇫🇷 Cinderella</span>
    </div>
    <div class="col-header header-cn">
      <span>🇨🇳 Yeh-Shen</span>
    </div>
  </div>

  
  <div class="comparison-list">
    
    
    <div class="row-card" data-cat="character">
      <div class="category-label">👤 Characters</div>
      <div class="row-content">
        <div class="item-cell cell-fr">
          <span class="cell-icon">👧👭</span>
          <div class="cell-text">
            Kind Girl
            <small>+ 2 Stepsisters</small>
          </div>
        </div>
        <div class="item-cell cell-cn">
          <span class="cell-icon">👧🧍‍♀️</span>
          <div class="cell-text">
            Kind Girl
            <small>+ 1 Stepsister</small>
          </div>
        </div>
      </div>
    </div>

    
    <div class="row-card" data-cat="setting">
      <div class="category-label">🏰 Setting</div>
      <div class="row-content">
        <div class="item-cell cell-fr">
          <span class="cell-icon">👑</span>
          <div class="cell-text">
            Palace Ball
            <small>Royal Court</small>
          </div>
        </div>
        <div class="item-cell cell-cn">
          <span class="cell-icon">🏮</span>
          <div class="cell-text">
            Cave Festival
            <small>Village Feast</small>
          </div>
        </div>
      </div>
    </div>

    
    <div class="row-card" data-cat="magic">
      <div class="category-label">🪄 Magic Aid</div>
      <div class="row-content">
        <div class="item-cell cell-fr">
          <span class="cell-icon">✨👠</span>
          <div class="cell-text">
            Fairy Godmother
            <small>Glass Slipper</small>
          </div>
        </div>
        <div class="item-cell cell-cn">
          <span class="cell-icon">🐟🥿</span>
          <div class="cell-text">
            Wise Fish Bones
            <small>Golden Slipper</small>
          </div>
        </div>
      </div>
    </div>

  </div>

  
  <div class="controls">
    <button class="filter-btn active" onclick="filterRow('all', this)">All</button>
    <button class="filter-btn" onclick="filterRow('character', this)">Characters</button>
    <button class="filter-btn" onclick="filterRow('setting', this)">Setting</button>
    <button class="filter-btn" onclick="filterRow('magic', this)">Magic</button>
  </div>

  <script>
    function filterRow(cat, btn) {
      document.querySelectorAll('.filter-btn').forEach(b => b.classList.remove('active'));
      btn.classList.add('active');

      const cards = document.querySelectorAll('.row-card');
      cards.forEach(card => {
        if (cat === 'all' || card.dataset.cat === cat) {
          card.style.opacity = '1';
          card.classList.add('active');
        } else {
          card.style.opacity = '0.35';
          card.classList.remove('active');
        }
      });
    }

    // Tap cards directly to highlight
    document.querySelectorAll('.row-card').forEach(card => {
      card.addEventListener('click', () => {
        const cat = card.dataset.cat;
        const btn = Array.from(document.querySelectorAll('.filter-btn'))
          .find(b => b.textContent.toLowerCase().includes(cat.slice(0, 4)));
        if (btn) filterRow(cat, btn);
      });
    });
  </script>
</body>
</html>

Comparing Variants of Traditional Fairy Tales

<!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: system-ui, -apple-system, sans-serif;
      color: #1e2945;
      background: transparent;
      padding: 8px;
    }
    .filters {
      display: flex;
      justify-content: center;
      gap: 6px;
      margin-bottom: 8px;
      flex-wrap: wrap;
    }
    .filter-btn {
      appearance: none;
      border: 1px solid #d1d5db;
      background: #ffffff;
      color: #4b5563;
      padding: 5px 10px;
      border-radius: 16px;
      font-size: 12px;
      font-weight: 600;
      cursor: pointer;
      transition: background-color 0.2s, border-color 0.2s, color 0.2s;
    }
    .filter-btn.active {
      background: #22b7ff;
      border-color: #22b7ff;
      color: #ffffff;
    }
    .grid-matrix {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 8px;
      width: 100%;
    }
    .story-col {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .story-header {
      background: #f1f5f9;
      border-radius: 8px;
      padding: 8px 4px;
      text-align: center;
      border-top: 3px solid #cbd5e1;
    }
    .story-header.fr { border-color: #3b82f6; background: #eff6ff; }
    .story-header.cn { border-color: #ef4444; background: #fef2f2; }
    .story-header.zw { border-color: #10b981; background: #ecfdf5; }
    
    .story-title {
      font-size: 13px;
      font-weight: 700;
      line-height: 1.2;
      color: #0f172a;
    }
    .story-origin {
      font-size: 11px;
      font-weight: 500;
      color: #64748b;
      margin-top: 2px;
    }
    .cell {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      padding: 6px 4px;
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 64px;
      transition: box-shadow 0.2s, background-color 0.2s, border-color 0.2s;
    }
    .cell-tag {
      font-size: 9px;
      text-transform: uppercase;
      font-weight: 700;
      letter-spacing: 0.5px;
      color: #94a3b8;
      margin-bottom: 2px;
    }
    .cell-icon {
      font-size: 18px;
      line-height: 1.1;
    }
    .cell-text {
      font-size: 12px;
      font-weight: 600;
      color: #1e293b;
      line-height: 1.2;
      margin-top: 2px;
    }
    .cell.dimmed {
      opacity: 0.35;
    }
    .cell.highlight {
      border-color: #22b7ff;
      background: #f0f9ff;
      box-shadow: 0 0 0 1px #22b7ff;
    }
  </style>
</head>
<body>

  <div class="filters">
    <button class="filter-btn active" onclick="filterRow('all')">✨ Show All</button>
    <button class="filter-btn" onclick="filterRow('hero')">👤 Hero</button>
    <button class="filter-btn" onclick="filterRow('place')">🏰 Setting</button>
    <button class="filter-btn" onclick="filterRow('helper')">🪄 Helper</button>
    <button class="filter-btn" onclick="filterRow('test')">🥿 Test / Clue</button>
  </div>

  <div class="grid-matrix">
    
    <div class="story-col">
      <div class="story-header fr">
        <div class="story-title">Cinderella</div>
        <div class="story-origin">🇫🇷 France</div>
      </div>
      
      <div class="cell" data-row="hero">
        <div class="cell-tag">Hero</div>
        <div class="cell-icon">👸🏼</div>
        <div class="cell-text">Gentle<br>Cinderella</div>
      </div>

      <div class="cell" data-row="place">
        <div class="cell-tag">Setting</div>
        <div class="cell-icon">🏰</div>
        <div class="cell-text">Royal<br>Ballroom</div>
      </div>

      <div class="cell" data-row="helper">
        <div class="cell-tag">Helper</div>
        <div class="cell-icon">🪄</div>
        <div class="cell-text">Fairy<br>Godmother</div>
      </div>

      <div class="cell" data-row="test">
        <div class="cell-tag">Test</div>
        <div class="cell-icon">🥿</div>
        <div class="cell-text">Glass<br>Slipper</div>
      </div>
    </div>

    
    <div class="story-col">
      <div class="story-header cn">
        <div class="story-title">Yeh-Shen</div>
        <div class="story-origin">🇨🇳 China</div>
      </div>
      
      <div class="cell" data-row="hero">
        <div class="cell-tag">Hero</div>
        <div class="cell-icon">👧🏻</div>
        <div class="cell-text">Brave<br>Yeh-Shen</div>
      </div>

      <div class="cell" data-row="place">
        <div class="cell-tag">Setting</div>
        <div class="cell-icon">🏮</div>
        <div class="cell-text">Spring<br>Festival</div>
      </div>

      <div class="cell" data-row="helper">
        <div class="cell-tag">Helper</div>
        <div class="cell-icon">🐟</div>
        <div class="cell-text">Magic<br>Fish Bones</div>
      </div>

      <div class="cell" data-row="test">
        <div class="cell-tag">Test</div>
        <div class="cell-icon">✨</div>
        <div class="cell-text">Golden<br>Slipper</div>
      </div>
    </div>

    
    <div class="story-col">
      <div class="story-header zw">
        <div class="story-title">Nyasha</div>
        <div class="story-origin">🇿🇼 Zimbabwe</div>
      </div>
      
      <div class="cell" data-row="hero">
        <div class="cell-tag">Hero</div>
        <div class="cell-icon">👸🏿</div>
        <div class="cell-text">Kind<br>Nyasha</div>
      </div>

      <div class="cell" data-row="place">
        <div class="cell-tag">Setting</div>
        <div class="cell-icon">🏛️</div>
        <div class="cell-text">Great<br>City</div>
      </div>

      <div class="cell" data-row="helper">
        <div class="cell-tag">Helper</div>
        <div class="cell-icon">🐍</div>
        <div class="cell-text">Garden<br>Snake King</div>
      </div>

      <div class="cell" data-row="test">
        <div class="cell-tag">Test</div>
        <div class="cell-icon">💖</div>
        <div class="cell-text">Test of<br>Kindness</div>
      </div>
    </div>
  </div>

  <script>
    function filterRow(rowType) {
      const buttons = document.querySelectorAll('.filter-btn');
      buttons.forEach(btn => {
        const text = btn.innerText.toLowerCase();
        if (rowType === 'all' && text.includes('all')) {
          btn.classList.add('active');
        } else if (rowType !== 'all' && (text.includes(rowType) || (rowType === 'place' && text.includes('setting')) || (rowType === 'test' && text.includes('test')))) {
          btn.classList.add('active');
        } else {
          btn.classList.remove('active');
        }
      });

      const cells = document.querySelectorAll('.cell');
      cells.forEach(cell => {
        const row = cell.getAttribute('data-row');
        if (rowType === 'all') {
          cell.classList.remove('dimmed', 'highlight');
        } else if (row === rowType) {
          cell.classList.remove('dimmed');
          cell.classList.add('highlight');
        } else {
          cell.classList.remove('highlight');
          cell.classList.add('dimmed');
        }
      });
    }
  </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">
  <title>Cinderella vs. Yeh-Shen Venn Diagram</title>
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      background: #ffffff;
      color: #1e2945;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      width: 100%;
      min-height: 100%;
      padding: 10px;
      user-select: none;
    }

    /* Filter Controls */
    .controls {
      display: flex;
      gap: 6px;
      margin-bottom: 8px;
      flex-wrap: wrap;
      justify-content: center;
      width: 100%;
      max-width: 520px;
    }

    .btn {
      appearance: none;
      border: 1.5px solid #e2e8f0;
      background: #f8fafc;
      color: #64748b;
      font-size: 12px;
      font-weight: 600;
      padding: 5px 10px;
      border-radius: 20px;
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .btn:hover {
      background: #f1f5f9;
      color: #1e2945;
    }

    .btn.active {
      background: #1e2945;
      color: #ffffff;
      border-color: #1e2945;
    }

    .btn[data-target="left"].active {
      background: #2563eb;
      border-color: #2563eb;
      color: #fff;
    }

    .btn[data-target="center"].active {
      background: #7c3aed;
      border-color: #7c3aed;
      color: #fff;
    }

    .btn[data-target="right"].active {
      background: #d97706;
      border-color: #d97706;
      color: #fff;
    }

    /* Venn SVG Canvas */
    .venn-wrapper {
      position: relative;
      width: 100%;
      max-width: 580px;
      aspect-ratio: 580 / 380;
    }

    svg {
      width: 100%;
      height: 100%;
      display: block;
      overflow: visible;
    }

    /* Venn Circles */
    .circle-bg {
      transition: opacity 0.3s ease, stroke-width 0.3s ease;
    }

    .circle-left {
      fill: #2563eb;
      fill-opacity: 0.12;
      stroke: #2563eb;
      stroke-width: 2.5;
    }

    .circle-right {
      fill: #d97706;
      fill-opacity: 0.12;
      stroke: #d97706;
      stroke-width: 2.5;
    }

    /* Text & Label Styling */
    .title-label {
      font-size: 15px;
      font-weight: 700;
      letter-spacing: 0.2px;
    }

    .title-left { fill: #1d4ed8; }
    .title-center { fill: #6d28d9; }
    .title-right { fill: #b45309; }

    .item-group {
      transition: opacity 0.3s ease, transform 0.3s ease;
    }

    .item-text {
      font-size: 12px;
      font-weight: 600;
      fill: #1e2945;
    }

    .item-icon {
      font-size: 14px;
    }

    /* Interactivity States */
    .dimmed {
      opacity: 0.15 !important;
    }

    .highlighted {
      opacity: 1 !important;
    }
  </style>
</head>
<body>

  <div class="controls" role="tablist" aria-label="Fairy Tale Filter">
    <button class="btn active" data-target="all" role="tab" aria-selected="true">All Elements</button>
    <button class="btn" data-target="left" role="tab" aria-selected="false">Cinderella</button>
    <button class="btn" data-target="center" role="tab" aria-selected="false">Shared Motifs</button>
    <button class="btn" data-target="right" role="tab" aria-selected="false">Yeh-Shen</button>
  </div>

  <div class="venn-wrapper">
    <svg viewBox="0 0 580 380" aria-label="Venn Diagram comparing Cinderella and Yeh-Shen">
      
      <defs>
        <clipPath id="clip-left">
          <circle cx="210" cy="205" r="160" />
        </clipPath>
      </defs>

      
      <circle id="bg-left" class="circle-bg circle-left" cx="210" cy="205" r="160" />
      <circle id="bg-right" class="circle-bg circle-right" cx="370" cy="205" r="160" />

      
      <g clip-path="url(#clip-left)">
        <circle id="bg-center" class="circle-bg" cx="370" cy="205" r="160" fill="#7c3aed" fill-opacity="0.18" stroke="#7c3aed" stroke-width="2.5" />
      </g>

      
      <g id="header-left" class="item-group">
        <text class="title-label title-left" x="130" y="38" text-anchor="middle">Only Cinderella</text>
      </g>

      <g id="header-center" class="item-group">
        <text class="title-label title-center" x="290" y="24" text-anchor="middle">Both Variants</text>
      </g>

      <g id="header-right" class="item-group">
        <text class="title-label title-right" x="450" y="38" text-anchor="middle">Only Yeh-Shen</text>
      </g>

      
      <g id="group-left" class="item-group">
        
        <g transform="translate(130, 130)">
          <text class="item-icon" x="0" y="0" text-anchor="middle">🎃</text>
          <text class="item-text" x="0" y="16" text-anchor="middle">Pumpkin carriage</text>
        </g>

        
        <g transform="translate(130, 205)">
          <text class="item-icon" x="0" y="0" text-anchor="middle">🪄</text>
          <text class="item-text" x="0" y="16" text-anchor="middle">Fairy godmother</text>
        </g>

        
        <g transform="translate(130, 280)">
          <text class="item-icon" x="0" y="0" text-anchor="middle">🏰</text>
          <text class="item-text" x="0" y="16" text-anchor="middle">Royal ball</text>
        </g>
      </g>

      
      <g id="group-center" class="item-group">
        
        <g transform="translate(290, 85)">
          <text class="item-icon" x="0" y="0" text-anchor="middle">💖</text>
          <text class="item-text" x="0" y="15" text-anchor="middle">Kind hero</text>
        </g>

        
        <g transform="translate(290, 160)">
          <text class="item-icon" x="0" y="0" text-anchor="middle">😠</text>
          <text class="item-text" x="0" y="15" text-anchor="middle">Cruel stepfamily</text>
        </g>

        
        <g transform="translate(290, 235)">
          <text class="item-icon" x="0" y="0" text-anchor="middle">🥿</text>
          <text class="item-text" x="0" y="15" text-anchor="middle">Lost tiny shoe</text>
        </g>

        
        <g transform="translate(290, 310)">
          <text class="item-icon" x="0" y="0" text-anchor="middle">👑</text>
          <text class="item-text" x="0" y="15" text-anchor="middle">King finds owner</text>
        </g>
      </g>

      
      <g id="group-right" class="item-group">
        
        <g transform="translate(450, 130)">
          <text class="item-icon" x="0" y="0" text-anchor="middle">🐟</text>
          <text class="item-text" x="0" y="16" text-anchor="middle">Magic fish bones</text>
        </g>

        
        <g transform="translate(450, 205)">
          <text class="item-icon" x="0" y="0" text-anchor="middle">🪶</text>
          <text class="item-text" x="0" y="16" text-anchor="middle">Kingfisher cloak</text>
        </g>

        
        <g transform="translate(450, 280)">
          <text class="item-icon" x="0" y="0" text-anchor="middle">🏮</text>
          <text class="item-text" x="0" y="16" text-anchor="middle">Cave festival</text>
        </g>
      </g>
    </svg>
  </div>

  <script>
    const buttons = document.querySelectorAll('.btn');
    const bgLeft = document.getElementById('bg-left');
    const bgRight = document.getElementById('bg-right');
    const bgCenter = document.getElementById('bg-center');

    const groupLeft = document.getElementById('group-left');
    const groupCenter = document.getElementById('group-center');
    const groupRight = document.getElementById('group-right');

    const headerLeft = document.getElementById('header-left');
    const headerCenter = document.getElementById('header-center');
    const headerRight = document.getElementById('header-right');

    function setActiveTab(target) {
      buttons.forEach(b => {
        const isActive = b.dataset.target === target;
        b.classList.toggle('active', isActive);
        b.setAttribute('aria-selected', isActive ? 'true' : 'false');
      });

      // Reset states
      [bgLeft, bgRight, bgCenter, groupLeft, groupCenter, groupRight, headerLeft, headerCenter, headerRight]
        .forEach(el => el.classList.remove('dimmed', 'highlighted'));

      if (target === 'left') {
        bgRight.classList.add('dimmed');
        bgCenter.classList.add('dimmed');
        groupRight.classList.add('dimmed');
        groupCenter.classList.add('dimmed');
        headerRight.classList.add('dimmed');
        headerCenter.classList.add('dimmed');
        groupLeft.classList.add('highlighted');
        headerLeft.classList.add('highlighted');
      } else if (target === 'center') {
        bgLeft.classList.add('dimmed');
        bgRight.classList.add('dimmed');
        groupLeft.classList.add('dimmed');
        groupRight.classList.add('dimmed');
        headerLeft.classList.add('dimmed');
        headerRight.classList.add('dimmed');
        groupCenter.classList.add('highlighted');
        headerCenter.classList.add('highlighted');
      } else if (target === 'right') {
        bgLeft.classList.add('dimmed');
        bgCenter.classList.add('dimmed');
        groupLeft.classList.add('dimmed');
        groupCenter.classList.add('dimmed');
        headerLeft.classList.add('dimmed');
        headerCenter.classList.add('dimmed');
        groupRight.classList.add('highlighted');
        headerRight.classList.add('highlighted');
      }
    }

    buttons.forEach(btn => {
      btn.addEventListener('click', () => {
        setActiveTab(btn.dataset.target);
      });
    });
  </script>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Cinderella &amp; Yeh-Shen Comparative Diagram</title>
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      color: #1e2945;
      background: #f8fafc;
      padding: 14px 10px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 100vh;
      overflow-x: hidden;
    }

    .toolbar {
      display: flex;
      gap: 8px;
      margin-bottom: 12px;
      z-index: 10;
      flex-wrap: wrap;
      justify-content: center;
    }

    .tab-btn {
      border: 1px solid #cbd5e1;
      background: #ffffff;
      color: #1e2945;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 700;
      cursor: pointer;
      transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .tab-btn:hover {
      background: #f1f5f9;
      border-color: #94a3b8;
    }

    .tab-btn.active {
      background: #1e2945;
      color: #ffffff;
      border-color: #1e2945;
      box-shadow: 0 2px 8px rgba(30, 41, 69, 0.25);
    }

    .comparison-stage {
      position: relative;
      width: 100%;
      max-width: 580px;
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: stretch;
      gap: 8px;
    }

    .book {
      background: #ffffff;
      border: 1.5px solid #e2e8f0;
      border-radius: 12px;
      padding: 10px 8px;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      box-shadow: 0 4px 12px rgba(30, 41, 69, 0.04);
      position: relative;
      z-index: 2;
    }

    .book-left {
      border-top: 4px solid #3b82f6;
    }

    .book-right {
      border-top: 4px solid #059669;
    }

    .book-title {
      font-size: 15px;
      font-weight: 800;
      color: #1e2945;
      line-height: 1.2;
    }

    .book-origin {
      font-size: 11px;
      color: #64748b;
      font-weight: 600;
      margin-bottom: 8px;
    }

    .scene-box {
      width: 100%;
      height: 84px;
      border-radius: 8px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      margin-bottom: 8px;
      position: relative;
      overflow: hidden;
    }

    .scene-left {
      background: linear-gradient(180deg, #eff6ff 0%, #dbeafe 100%);
      border: 1px solid #bfdbfe;
    }

    .scene-right {
      background: linear-gradient(180deg, #ecfdf5 0%, #d1fae5 100%);
      border: 1px solid #a7f3d0;
    }

    .scene-decor {
      position: absolute;
      font-size: 16px;
      opacity: 0.35;
      top: 6px;
    }

    .scene-left .scene-decor { left: 8px; }
    .scene-right .scene-decor { right: 8px; }

    .avatar-wrapper {
      position: relative;
      z-index: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .avatar {
      font-size: 34px;
      line-height: 1;
      filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
    }

    .scene-label {
      font-size: 9px;
      font-weight: 700;
      color: #475569;
      margin-top: 3px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .item-card {
      width: 100%;
      background: #f8fafc;
      border: 1.5px solid #e2e8f0;
      border-radius: 8px;
      padding: 7px 4px;
      margin-top: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 5px;
      font-size: 11px;
      font-weight: 700;
      color: #334155;
      transition: background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, color 0.25s ease;
    }

    .item-card.highlight {
      background: #fef9c3;
      border-color: #eab308;
      color: #854d0e;
      box-shadow: 0 0 8px rgba(234, 179, 8, 0.35);
    }

    .item-card.dimmed {
      opacity: 0.45;
      border-style: dashed;
    }

    /* Center Connector Column */
    .center-bridge {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: space-between;
      padding: 38px 0 10px;
      position: relative;
      min-width: 70px;
      z-index: 3;
    }

    .core-badge {
      background: #ffffff;
      border: 2px solid #eab308;
      color: #854d0e;
      padding: 5px 8px;
      border-radius: 16px;
      font-size: 10px;
      font-weight: 800;
      box-shadow: 0 2px 8px rgba(234, 179, 8, 0.25);
      white-space: nowrap;
      text-align: center;
      line-height: 1.2;
    }

    .connector-node {
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 10px;
      font-weight: 800;
      color: #ca8a04;
      background: #fefce8;
      border: 1px solid #facc15;
      border-radius: 12px;
      padding: 3px 6px;
      white-space: nowrap;
      transition: opacity 0.25s ease, border-color 0.25s ease;
    }

    .connector-node.dimmed {
      opacity: 0.35;
    }

    /* Stable, Smooth Golden Thread Overlay */
    .thread-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      pointer-events: none;
      z-index: 1;
    }

    .thread-line {
      stroke: #eab308;
      stroke-width: 2.5;
      stroke-dasharray: 6 5;
      stroke-linecap: round;
      animation: threadFlow 6s linear infinite;
      transition: opacity 0.3s ease, stroke 0.3s ease;
      filter: drop-shadow(0 0 3px rgba(234, 179, 8, 0.4));
    }

    .thread-line.dimmed {
      opacity: 0.15;
      stroke: #cbd5e1;
    }

    @keyframes threadFlow {
      from { stroke-dashoffset: 44; }
      to { stroke-dashoffset: 0; }
    }

    @media (max-width: 420px) {
      body { padding: 8px 4px; }
      .book-title { font-size: 13px; }
      .book-origin { font-size: 9.5px; }
      .avatar { font-size: 28px; }
      .scene-box { height: 72px; }
      .scene-label { font-size: 8px; }
      .item-card { font-size: 9.5px; padding: 5px 2px; gap: 3px; }
      .center-bridge { min-width: 58px; padding-top: 32px; }
      .core-badge { font-size: 8.5px; padding: 4px 5px; }
      .connector-node { font-size: 8.5px; padding: 2px 4px; }
      .tab-btn { font-size: 10.5px; padding: 4px 8px; }
    }
  </style>
</head>
<body>

  <div class="toolbar">
    <button class="tab-btn active" data-mode="all" onclick="setMode('all', this)">✦ Same Core Story</button>
    <button class="tab-btn" data-mode="dress" onclick="setMode('dress', this)">👗 Magical Attire</button>
    <button class="tab-btn" data-mode="shoe" onclick="setMode('shoe', this)">👠 Golden/Glass Shoes</button>
  </div>

  <div class="comparison-stage">
    
    <svg class="thread-overlay" viewBox="0 0 580 230" preserveAspectRatio="none">
      
      <path id="line-dress" class="thread-line" d="M 210 162 C 260 162, 320 162, 370 162" fill="none" />
      
      <path id="line-shoe" class="thread-line" d="M 210 200 C 260 200, 320 200, 370 200" fill="none" />
    </svg>

    
    <div class="book book-left">
      <div class="book-title">Cinderella</div>
      <div class="book-origin">Europe • 1697</div>
      
      <div class="scene-box scene-left">
        <span class="scene-decor">🏰</span>
        <div class="avatar-wrapper">
          <div class="avatar">👸</div>
          <span class="scene-label">Castle Ballroom</span>
        </div>
      </div>

      <div class="item-card highlight" id="left-dress">
        <span>👗</span> <span>Blue Ballgown</span>
      </div>
      <div class="item-card highlight" id="left-shoe">
        <span>👡</span> <span>Glass Slipper</span>
      </div>
    </div>

    
    <div class="center-bridge">
      <div class="core-badge">✨ Same Core<br>Story!</div>
      <div class="connector-node" id="node-dress">↔ Attire</div>
      <div class="connector-node" id="node-shoe">↔ Shoe</div>
    </div>

    
    <div class="book book-right">
      <div class="book-title">Yeh-Shen</div>
      <div class="book-origin">China • 850 CE</div>
      
      <div class="scene-box scene-right">
        <span class="scene-decor">🏮</span>
        <div class="avatar-wrapper">
          <div class="avatar">🧝‍♀️</div>
          <span class="scene-label">Cave Festival</span>
        </div>
      </div>

      <div class="item-card highlight" id="right-dress">
        <span>🪶</span> <span>Feather Cloak</span>
      </div>
      <div class="item-card highlight" id="right-shoe">
        <span>✨</span> <span>Golden Shoe</span>
      </div>
    </div>
  </div>

  <script>
    function setMode(mode, targetBtn) {
      // Update active tab button safely
      document.querySelectorAll('.tab-btn').forEach(btn => btn.classList.remove('active'));
      if (targetBtn) {
        targetBtn.classList.add('active');
      } else {
        const matchedBtn = document.querySelector(`.tab-btn[data-mode="${mode}"]`);
        if (matchedBtn) matchedBtn.classList.add('active');
      }

      const leftDress = document.getElementById('left-dress');
      const rightDress = document.getElementById('right-dress');
      const leftShoe = document.getElementById('left-shoe');
      const rightShoe = document.getElementById('right-shoe');

      const lineDress = document.getElementById('line-dress');
      const lineShoe = document.getElementById('line-shoe');
      const nodeDress = document.getElementById('node-dress');
      const nodeShoe = document.getElementById('node-shoe');

      if (mode === 'dress') {
        leftDress.className = 'item-card highlight';
        rightDress.className = 'item-card highlight';
        leftShoe.className = 'item-card dimmed';
        rightShoe.className = 'item-card dimmed';

        lineDress.classList.remove('dimmed');
        lineShoe.classList.add('dimmed');
        nodeDress.classList.remove('dimmed');
        nodeShoe.classList.add('dimmed');
      } else if (mode === 'shoe') {
        leftDress.className = 'item-card dimmed';
        rightDress.className = 'item-card dimmed';
        leftShoe.className = 'item-card highlight';
        rightShoe.className = 'item-card highlight';

        lineDress.classList.add('dimmed');
        lineShoe.classList.remove('dimmed');
        nodeDress.classList.add('dimmed');
        nodeShoe.classList.remove('dimmed');
      } else {
        // 'all'
        leftDress.className = 'item-card highlight';
        rightDress.className = 'item-card highlight';
        leftShoe.className = 'item-card highlight';
        rightShoe.className = 'item-card highlight';

        lineDress.classList.remove('dimmed');
        lineShoe.classList.remove('dimmed');
        nodeDress.classList.remove('dimmed');
        nodeShoe.classList.remove('dimmed');
      }
    }

    // Initial safe call
    setMode('all');
  </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: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      background: transparent;
      color: #1e2945;
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 100vh;
      padding: 12px;
    }
    .badge-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      width: 100%;
      max-width: 580px;
    }
    .badge {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      padding: 16px 10px;
      border-radius: 14px;
      border: 2px solid transparent;
      background: #ffffff;
      box-shadow: 0 2px 6px rgba(0,0,0,0.04);
      cursor: pointer;
      user-select: none;
      transition: box-shadow 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
    }
    .icon-bubble {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      margin-bottom: 10px;
      line-height: 1;
    }
    .badge-title {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 4px;
      letter-spacing: -0.2px;
    }
    .badge-subtitle {
      font-size: 13px;
      line-height: 1.25;
      font-weight: 500;
      color: #4b5563;
    }

    /* Blue Badge: Characters */
    .badge-blue {
      background: #f0f9ff;
      border-color: #bae6fd;
    }
    .badge-blue .icon-bubble {
      background: #e0f2fe;
    }
    .badge-blue .badge-title {
      color: #0369a1;
    }
    .badge-blue.active, .badge-blue:active {
      border-color: #0284c7;
      box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.2);
    }

    /* Green Badge: Setting */
    .badge-green {
      background: #f0fdf4;
      border-color: #bbf7d0;
    }
    .badge-green .icon-bubble {
      background: #dcfce7;
      font-size: 20px;
      letter-spacing: -2px;
    }
    .badge-green .badge-title {
      color: #15803d;
    }
    .badge-green.active, .badge-green:active {
      border-color: #16a34a;
      box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.2);
    }

    /* Purple Badge: Magic */
    .badge-purple {
      background: #faf5ff;
      border-color: #e9d5ff;
    }
    .badge-purple .icon-bubble {
      background: #f3e8ff;
    }
    .badge-purple .badge-title {
      color: #7e22ce;
    }
    .badge-purple.active, .badge-purple:active {
      border-color: #9333ea;
      box-shadow: 0 0 0 3px rgba(147, 51, 234, 0.2);
    }

    @media (max-width: 440px) {
      .badge-grid {
        grid-template-columns: 1fr;
        max-width: 280px;
        gap: 10px;
      }
      .badge {
        flex-direction: row;
        text-align: left;
        padding: 12px 14px;
        gap: 12px;
      }
      .icon-bubble {
        width: 44px;
        height: 44px;
        min-width: 44px;
        font-size: 20px;
        margin-bottom: 0;
      }
      .badge-text {
        display: flex;
        flex-direction: column;
      }
    }
  </style>
</head>
<body>

  <div class="badge-grid">
    
    <div class="badge badge-blue" onclick="selectBadge(this)">
      <div class="icon-bubble">👤</div>
      <div class="badge-text">
        <div class="badge-title">Characters</div>
        <div class="badge-subtitle">Who is in the story?</div>
      </div>
    </div>

    
    <div class="badge badge-green" onclick="selectBadge(this)">
      <div class="icon-bubble">🌲🏰</div>
      <div class="badge-text">
        <div class="badge-title">Setting</div>
        <div class="badge-subtitle">Where &amp; when it happens</div>
      </div>
    </div>

    
    <div class="badge badge-purple" onclick="selectBadge(this)">
      <div class="icon-bubble">✨</div>
      <div class="badge-text">
        <div class="badge-title">Magic</div>
        <div class="badge-subtitle">What special help appears?</div>
      </div>
    </div>
  </div>

  <script>
    function selectBadge(el) {
      document.querySelectorAll('.badge').forEach(b => b.classList.remove('active'));
      el.classList.add('active');
    }
  </script>
</body>
</html>

OGE.3.RL.8

Aligned learning resources

Related diagrams