<!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: 14px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      min-height: 100%;
    }

    .toolbar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
    }

    .topic-tag {
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: #64748b;
      display: flex;
      align-items: center;
      gap: 5px;
    }

    .highlight-btn {
      background: #ffffff;
      border: 1.5px solid #cbd5e1;
      color: #334155;
      padding: 6px 12px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
      user-select: none;
    }

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

    .highlight-btn.active {
      background: #0284c7;
      border-color: #0284c7;
      color: #ffffff;
    }

    .cards-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 12px;
      flex: 1;
    }

    .reading-card {
      background: #ffffff;
      border-radius: 12px;
      padding: 16px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
      border-left: 5px solid transparent;
      border-top: 1px solid #e2e8f0;
      border-right: 1px solid #e2e8f0;
      border-bottom: 1px solid #e2e8f0;
    }

    .card-a {
      border-left-color: #0284c7;
    }

    .card-b {
      border-left-color: #0d9488;
    }

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

    .card-title {
      font-size: 15px;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .card-a .card-title {
      color: #0369a1;
    }

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      color: #0f766e;
    }

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      font-size: 11px;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 12px;
    }

    .card-a .card-badge {
      background: #e0f2fe;
      color: #0284c7;
    }

    .card-b .card-badge {
      background: #ccfbf1;
      color: #0d9488;
    }

    .card-body {
      font-size: 14px;
      line-height: 1.6;
      color: #334155;
    }

    /* Interactive highlight styles */
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      padding: 1px 3px;
      transition: background-color 0.25s ease, color 0.25s ease;
    }

    .highlight-active .hl-env {
      background-color: #fef08a;
      color: #854d0e;
      font-weight: 600;
    }

    .highlight-active .hl-adapt {
      background-color: #fed7aa;
      color: #9a3412;
      font-weight: 600;
    }

    .comparison-banner {
      background: #ffffff;
      border: 1px dashed #cbd5e1;
      border-radius: 8px;
      padding: 8px 12px;
      display: none;
      font-size: 12.5px;
      color: #475569;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    .comparison-banner.show {
      display: flex;
    }

    .sim-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-weight: 500;
    }

    .legend-box {
      display: inline-block;
      width: 12px;
      height: 12px;
      border-radius: 3px;
    }
  </style>
</head>
<body>

  <div class="toolbar">
    <div class="topic-tag">📖 Comparing Texts</div>
    <button id="toggleBtn" class="highlight-btn" onclick="toggleSimilarities()">
      <span>✦</span> Highlight Similarities
    </button>
  </div>

  <div id="cardsGrid" class="cards-grid">
    
    <section class="reading-card card-a">
      <div class="card-header">
        <h2 class="card-title">Passage A: The Anglerfish</h2>
        <span class="card-badge">Text 1</span>
      </div>
      <p class="card-body">
        <span class="hl-env">At the bottom of the ocean, it is pitch black and freezing cold.</span>
        The anglerfish <span class="hl-adapt">survives here with a glowing light on its head</span> that lures prey directly into its sharp teeth.
      </p>
    </section>

    
    <section class="reading-card card-b">
      <div class="card-header">
        <h2 class="card-title">Passage B: Giant Tube Worms</h2>
        <span class="card-badge">Text 2</span>
      </div>
      <p class="card-body">
        <span class="hl-env">Deep underwater vents shoot out boiling, toxic chemicals into icy water.</span>
        Giant tube worms <span class="hl-adapt">thrive in this dark world because special bacteria inside their bodies</span> turn chemicals into food.
      </p>
    </section>
  </div>

  <div id="banner" class="comparison-banner">
    <div class="sim-item">
      <span class="legend-box" style="background: #fef08a; border: 1px solid #eab308;"></span>
      <span><strong>Shared Habitat:</strong> Deep, harsh ocean depths</span>
    </div>
    <div class="sim-item">
      <span class="legend-box" style="background: #fed7aa; border: 1px solid #f97316;"></span>
      <span><strong>Shared Focus:</strong> Unique survival adaptations</span>
    </div>
  </div>

  <script>
    let isHighlighted = false;

    function toggleSimilarities() {
      isHighlighted = !isHighlighted;
      const grid = document.getElementById('cardsGrid');
      const btn = document.getElementById('toggleBtn');
      const banner = document.getElementById('banner');

      if (isHighlighted) {
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        btn.classList.add('active');
        btn.innerHTML = '<span>✓</span> Similarities Shown';
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      } else {
        grid.classList.remove('highlight-active');
        btn.classList.remove('active');
        btn.innerHTML = '<span>✦</span> Highlight Similarities';
        banner.classList.remove('show');
      }
    }
  </script>
</body>
</html>

Finding Similarities in Two Informational Texts

<!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;
      flex-direction: column;
      align-items: center;
      justify-content: flex-start;
      padding: 8px;
      min-height: 100%;
    }

    /* Controls Bar */
    .controls {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 6px;
      margin-bottom: 8px;
      width: 100%;
      max-width: 540px;
    }

    .btn-tab {
      background: #f1f5f9;
      border: 1.5px solid #cbd5e1;
      border-radius: 20px;
      padding: 6px 12px;
      font-size: 13px;
      font-weight: 600;
      color: #475569;
      cursor: pointer;
      transition: all 0.25s ease;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    .btn-tab:hover {
      background: #e2e8f0;
    }

    .btn-tab.active-all {
      background: #334155;
      border-color: #334155;
      color: #ffffff;
    }

    .btn-tab.active-a {
      background: #e0f2fe;
      border-color: #0284c7;
      color: #0369a1;
    }

    .btn-tab.active-center {
      background: #fef3c7;
      border-color: #d97706;
      color: #92400e;
    }

    .btn-tab.active-b {
      background: #ccfbf1;
      border-color: #0d9488;
      color: #0f766e;
    }

    /* Venn Diagram Wrapper */
    .venn-container {
      position: relative;
      width: 100%;
      max-width: 580px;
      aspect-ratio: 16 / 10;
      min-height: 280px;
      max-height: 360px;
    }

    .venn-svg {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      overflow: visible;
    }

    .circle-shape {
      transition: opacity 0.3s ease, stroke-width 0.3s ease, filter 0.3s ease;
      cursor: pointer;
    }

    .circle-a {
      fill: #e0f2fe;
      stroke: #0284c7;
      stroke-width: 2.5;
    }

    .circle-b {
      fill: #ccfbf1;
      stroke: #0d9488;
      stroke-width: 2.5;
    }

    .center-overlap {
      fill: #fef3c7;
      stroke: #f59e0b;
      stroke-width: 2.5;
      cursor: pointer;
      transition: opacity 0.3s ease, stroke-width 0.3s ease, filter 0.3s ease;
    }

    /* HTML Content Overlays */
    .card-layer {
      position: absolute;
      inset: 0;
      pointer-events: none;
      display: grid;
      grid-template-columns: 1.1fr 1.3fr 1.1fr;
      align-items: center;
      padding: 10px 14px;
      gap: 6px;
    }

    .region-card {
      pointer-events: auto;
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 6px 8px;
      border-radius: 12px;
      transition: opacity 0.3s ease, transform 0.3s ease;
      cursor: pointer;
    }

    .card-a {
      align-items: flex-start;
      text-align: left;
      padding-right: 4px;
    }

    .card-center {
      align-items: center;
      text-align: center;
      background: rgba(254, 243, 199, 0.85);
      border: 1.5px dashed #d97706;
      padding: 8px 10px;
      box-shadow: 0 2px 6px rgba(217, 119, 6, 0.12);
      border-radius: 14px;
      z-index: 2;
    }

    .card-b {
      align-items: flex-end;
      text-align: right;
      padding-left: 4px;
    }

    /* Typography */
    .badge {
      display: inline-block;
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      padding: 3px 7px;
      border-radius: 6px;
      margin-bottom: 6px;
    }

    .badge-a {
      background: #bae6fd;
      color: #0369a1;
    }

    .badge-center {
      background: #fde68a;
      color: #92400e;
      font-size: 12px;
    }

    .badge-b {
      background: #99f6e4;
      color: #0f766e;
    }

    .fact-list {
      list-style: none;
      font-size: 13px;
      line-height: 1.35;
      font-weight: 500;
    }

    .fact-a {
      color: #075985;
    }

    .fact-b {
      color: #115e59;
    }

    .fact-center {
      color: #78350f;
      font-size: 13px;
      line-height: 1.35;
      font-weight: 600;
    }

    .fact-item {
      margin-bottom: 4px;
    }

    /* Dimming & Highlighting States */
    .dimmed {
      opacity: 0.28 !important;
    }

    .highlighted {
      opacity: 1 !important;
      filter: drop-shadow(0 0 6px rgba(0,0,0,0.15));
    }

    /* Responsive adjustments */
    @media (max-width: 480px) {
      .fact-list, .fact-center {
        font-size: 11.5px;
        line-height: 1.25;
      }
      .badge {
        font-size: 10px;
        padding: 2px 5px;
        margin-bottom: 4px;
      }
      .badge-center {
        font-size: 10.5px;
      }
      .card-center {
        padding: 6px 6px;
      }
      .btn-tab {
        font-size: 11.5px;
        padding: 4px 9px;
      }
    }
  </style>
</head>
<body>

  
  <div class="controls">
    <button class="btn-tab active-all" id="btn-all" onclick="setMode('all')">🔍 Both Texts</button>
    <button class="btn-tab" id="btn-a" onclick="setMode('a')">Passage A Only</button>
    <button class="btn-tab" id="btn-center" onclick="setMode('center')">✦ Shared Idea</button>
    <button class="btn-tab" id="btn-b" onclick="setMode('b')">Passage B Only</button>
  </div>

  
  <div class="venn-container">
    <svg class="venn-svg" viewBox="0 0 600 360" preserveAspectRatio="xMidYMid meet">
      <defs>
        
        <clipPath id="clip-circle-a">
          <circle cx="230" cy="180" r="160" />
        </clipPath>
      </defs>

      
      <circle id="svg-circle-a" class="circle-shape circle-a" cx="230" cy="180" r="160" onclick="setMode('a')" />

      
      <circle id="svg-circle-b" class="circle-shape circle-b" cx="370" cy="180" r="160" onclick="setMode('b')" />

      
      <circle id="svg-center" class="center-overlap" cx="370" cy="180" r="160" clip-path="url(#clip-circle-a)" onclick="setMode('center')" />
    </svg>

    
    <div class="card-layer">
      
      <div class="region-card card-a" id="card-a" onclick="setMode('a')">
        <span class="badge badge-a">Passage A Only</span>
        <ul class="fact-list fact-a">
          <li class="fact-item">• Glowing lure on head</li>
          <li class="fact-item">• Catches small prey</li>
        </ul>
      </div>

      
      <div class="region-card card-center" id="card-center" onclick="setMode('center')">
        <span class="badge badge-center">✦ Shared Central Idea ✦</span>
        <div class="fact-center">
          Animals have special body adaptations to survive deep, dark ocean conditions.
        </div>
      </div>

      
      <div class="region-card card-b" id="card-b" onclick="setMode('b')">
        <span class="badge badge-b">Passage B Only</span>
        <ul class="fact-list fact-b">
          <li class="fact-item">• Lives near hot vents</li>
          <li class="fact-item">• Bacteria make food</li>
        </ul>
      </div>
    </div>
  </div>

  <script>
    let currentMode = 'all';

    function setMode(mode) {
      currentMode = mode;

      // Update button classes
      const buttons = {
        all: document.getElementById('btn-all'),
        a: document.getElementById('btn-a'),
        center: document.getElementById('btn-center'),
        b: document.getElementById('btn-b')
      };

      Object.keys(buttons).forEach(key => {
        buttons[key].className = 'btn-tab';
      });

      if (mode === 'all') buttons.all.classList.add('active-all');
      if (mode === 'a') buttons.a.classList.add('active-a');
      if (mode === 'center') buttons.center.classList.add('active-center');
      if (mode === 'b') buttons.b.classList.add('active-b');

      // Visual elements
      const svgA = document.getElementById('svg-circle-a');
      const svgB = document.getElementById('svg-circle-b');
      const svgCenter = document.getElementById('svg-center');

      const cardA = document.getElementById('card-a');
      const cardB = document.getElementById('card-b');
      const cardCenter = document.getElementById('card-center');

      // Reset states
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        el.classList.remove('dimmed', 'highlighted');
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        svgB.classList.add('dimmed');
        svgCenter.classList.add('dimmed');
        cardB.classList.add('dimmed');
        cardCenter.classList.add('dimmed');
        svgA.classList.add('highlighted');
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        svgA.classList.add('dimmed');
        svgCenter.classList.add('dimmed');
        cardA.classList.add('dimmed');
        cardCenter.classList.add('dimmed');
        svgB.classList.add('highlighted');
      } else if (mode === 'center') {
        svgA.classList.add('dimmed');
        svgB.classList.add('dimmed');
        cardA.classList.add('dimmed');
        cardB.classList.add('dimmed');
        svgCenter.classList.add('highlighted');
        cardCenter.classList.add('highlighted');
      }
    }
  </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;
      color: #1e2945;
      background: transparent;
      padding: 10px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      user-select: none;
      max-width: 680px;
      margin: 0 auto;
    }

    /* Tabs */
    .tabs-row {
      display: flex;
      justify-content: center;
      gap: 8px;
      flex-wrap: wrap;
    }
    .tab-btn {
      appearance: none;
      border: 1px solid #e2e8f0;
      background: #ffffff;
      color: #475569;
      padding: 6px 14px;
      font-size: 13px;
      font-weight: 600;
      border-radius: 9999px;
      cursor: pointer;
      box-shadow: 0 1px 3px rgba(0,0,0,0.05);
      transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    }
    .tab-btn:hover {
      background: #f8fafc;
      border-color: #cbd5e1;
    }
    .tab-btn.active {
      background: #1e2945;
      color: #ffffff;
      border-color: #1e2945;
      box-shadow: 0 2px 6px rgba(30,41,69,0.2);
    }

    /* Comparison Area */
    .compare-grid {
      display: grid;
      grid-template-columns: 1fr auto 1.3fr;
      align-items: center;
      gap: 10px;
    }

    /* Column Cards */
    .box {
      border-radius: 12px;
      padding: 12px;
      display: flex;
      flex-direction: column;
      gap: 8px;
      height: 100%;
      min-height: 140px;
      justify-content: space-between;
    }

    /* Amber (Topic) */
    .topic-box {
      background: #fffbeb;
      border: 1.5px solid #fde68a;
    }
    .topic-badge {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.5px;
      color: #92400e;
      background: #fef3c7;
      border: 1px solid #fcd34d;
      padding: 3px 8px;
      border-radius: 6px;
      width: fit-content;
    }
    .topic-content {
      display: flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      padding: 10px 12px;
      border-radius: 8px;
      border: 1px solid #fef3c7;
      box-shadow: 0 1px 3px rgba(217,119,6,0.08);
    }
    .topic-icon {
      font-size: 24px;
      line-height: 1;
    }
    .topic-text {
      font-size: 16px;
      font-weight: 700;
      color: #b45309;
    }
    .topic-sub {
      font-size: 11px;
      font-weight: 600;
      color: #a16207;
    }

    /* Center Connector */
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      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 4px;
      text-align: center;
    }
    .plus-label {
      font-size: 11px;
      font-weight: 700;
      color: #0284c7;
      background: #e0f2fe;
      border: 1px solid #bae6fd;
      padding: 2px 8px;
      border-radius: 12px;
      white-space: nowrap;
    }
    .arrow-symbol {
      font-size: 20px;
      color: #0284c7;
      font-weight: 900;
      line-height: 1;
      display: inline-block;
      animation: pulseArrowDesktop 1.8s infinite ease-in-out;
    }

    @keyframes pulseArrowDesktop {
      0%, 100% { transform: translateX(0); }
      50% { transform: translateX(3px); }
    }

    /* Emerald (Central Idea) */
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      background: #ecfdf5;
      border: 1.5px solid #a7f3d0;
    }
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      align-items: center;
      gap: 4px;
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.5px;
      color: #065f46;
      background: #d1fae5;
      border: 1px solid #6ee7b7;
      padding: 3px 8px;
      border-radius: 6px;
      width: fit-content;
    }
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      background: #ffffff;
      padding: 10px 12px;
      border-radius: 8px;
      border: 1px solid #d1fae5;
      box-shadow: 0 1px 3px rgba(16,185,129,0.08);
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      line-height: 1.4;
      font-weight: 600;
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      padding: 1px 4px;
      border-radius: 4px;
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    }
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      border-radius: 4px;
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      font-size: 11px;
      font-weight: 600;
      color: #059669;
    }

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      .compare-grid {
        grid-template-columns: 1fr;
        gap: 6px;
      }
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      }
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        margin: 4px 0;
        gap: 2px;
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      50% { transform: rotate(90deg) translateX(3px); }
    }

    /* Formula Strip */
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      background: #f8fafc;
      border: 1px dashed #cbd5e1;
      border-radius: 10px;
      padding: 8px 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      font-size: 11.5px;
      font-weight: 700;
      flex-wrap: wrap;
    }
    .f-pill {
      padding: 3px 8px;
      border-radius: 6px;
      white-space: nowrap;
    }
    .f-topic {
      background: #fef3c7;
      color: #92400e;
      border: 1px solid #fcd34d;
    }
    .f-point {
      background: #e0f2fe;
      color: #0369a1;
      border: 1px solid #bae6fd;
    }
    .f-idea {
      background: #d1fae5;
      color: #065f46;
      border: 1px solid #6ee7b7;
    }
    .f-op {
      color: #94a3b8;
      font-size: 13px;
    }

    /* Smooth transitions */
    .fade-text {
      transition: opacity 0.18s ease;
    }
    .fade-out {
      opacity: 0;
    }
  </style>
</head>
<body>

  
  <div class="tabs-row">
    <button class="tab-btn active" onclick="switchExample(0)">🐝 Honeybees</button>
    <button class="tab-btn" onclick="switchExample(1)">🌊 Deep-Sea Animals</button>
    <button class="tab-btn" onclick="switchExample(2)">☀️ Solar Flares</button>
  </div>

  
  <div class="compare-grid">
    
    <div class="box topic-box">
      <div class="topic-badge">TOPIC: 1–2 Words</div>
      <div class="topic-content">
        <span id="topicIcon" class="topic-icon fade-text">🐝</span>
        <span id="topicText" class="topic-text fade-text">Honeybees</span>
      </div>
      <div class="topic-sub">● Just the Subject — Not a Full Sentence</div>
    </div>

    
    <div class="arrow-col">
      <span class="plus-label">+ What does author say?</span>
      <span class="arrow-symbol">➔</span>
    </div>

    
    <div class="box idea-box">
      <div class="idea-badge">CENTRAL IDEA: Full Sentence</div>
      <div id="ideaContent" class="idea-content fade-text">
        <span class="highlight-topic">Honeybees</span> <span class="highlight-point">help flowers reproduce by carrying pollen.</span>
      </div>
      <div class="idea-sub">● Topic + Author's Key Point = Complete Message</div>
    </div>
  </div>

  
  <div class="formula-strip">
    <span class="f-pill f-topic">Topic (Subject)</span>
    <span class="f-op">+</span>
    <span class="f-pill f-point">Author's Key Point</span>
    <span class="f-op">=</span>
    <span class="f-pill f-idea">Central Idea</span>
  </div>

  <script>
    const data = [
      {
        icon: "🐝",
        topic: "Honeybees",
        topicPart: "Honeybees",
        pointPart: "help flowers reproduce by carrying pollen."
      },
      {
        icon: "🌊",
        topic: "Deep-Sea Animals",
        topicPart: "Deep-sea creatures",
        pointPart: "glow in the dark to hunt and survive in deep water."
      },
      {
        icon: "☀️",
        topic: "Solar Flares",
        topicPart: "Solar flares",
        pointPart: "release powerful energy that can disrupt technology on Earth."
      }
    ];

    let currentIdx = 0;

    function switchExample(index) {
      if (index === currentIdx) return;
      currentIdx = index;

      // Update buttons
      const buttons = document.querySelectorAll('.tab-btn');
      buttons.forEach((btn, i) => {
        btn.classList.toggle('active', i === index);
      });

      // Elements to transition
      const topicIcon = document.getElementById('topicIcon');
      const topicText = document.getElementById('topicText');
      const ideaContent = document.getElementById('ideaContent');

      // Fade out
      topicIcon.classList.add('fade-out');
      topicText.classList.add('fade-out');
      ideaContent.classList.add('fade-out');

      setTimeout(() => {
        const item = data[index];
        topicIcon.textContent = item.icon;
        topicText.textContent = item.topic;
        ideaContent.innerHTML = `<span class="highlight-topic">${item.topicPart}</span> <span class="highlight-point">${item.pointPart}</span>`;

        // Fade in
        topicIcon.classList.remove('fade-out');
        topicText.classList.remove('fade-out');
        ideaContent.classList.remove('fade-out');
      }, 150);
    }
  </script>
</body>
</html>

OGE.4.RI.9

Aligned learning resources

Related diagrams