<!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;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 100%;
      padding: 16px;
    }

    .cards-grid {
      display: flex;
      flex-direction: column;
      gap: 14px;
      width: 100%;
      max-width: 440px;
    }

    .noun-card {
      background: #ffffff;
      border: 2px solid #e2e8f0;
      border-radius: 14px;
      padding: 14px 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .noun-card:hover {
      border-color: #8b5cf6;
      box-shadow: 0 4px 12px rgba(139, 92, 246, 0.12);
    }

    .icon-wrap {
      font-size: 26px;
      margin-right: 14px;
      flex-shrink: 0;
      line-height: 1;
    }

    .phrase-wrap {
      flex: 1;
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 6px 8px;
      font-size: 21px;
      font-weight: 600;
      color: #334155;
      letter-spacing: -0.2px;
    }

    .word {
      display: inline-flex;
      align-items: baseline;
      position: relative;
    }

    .cap {
      color: #7c3aed;
      font-weight: 800;
      font-size: 25px;
      background: #ede9fe;
      padding: 0 4px;
      border-radius: 6px;
      line-height: 1.1;
      margin-right: 1px;
    }

    .connector-wrap {
      display: inline-flex;
      flex-direction: column;
      align-items: center;
      position: relative;
    }

    .connector-word {
      color: #64748b;
      font-weight: 600;
      font-size: 19px;
      background: #f1f5f9;
      padding: 1px 6px;
      border-radius: 6px;
      border: 1px dashed #cbd5e1;
    }

    .connector-label {
      font-size: 10px;
      font-weight: 700;
      color: #64748b;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-top: 2px;
    }

    .type-tag {
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.6px;
      color: #7c3aed;
      background: #f5f3ff;
      border: 1px solid #ddd6fe;
      padding: 4px 8px;
      border-radius: 8px;
      white-space: nowrap;
      flex-shrink: 0;
      margin-left: 8px;
    }

    @media (max-width: 380px) {
      .phrase-wrap {
        font-size: 18px;
      }
      .cap {
        font-size: 22px;
      }
      .type-tag {
        display: none;
      }
      .noun-card {
        padding: 12px 14px;
      }
    }
  </style>
</head>
<body>
  <div class="cards-grid">
    
    <div class="noun-card">
      <div class="icon-wrap">🌊</div>
      <div class="phrase-wrap">
        <span class="word"><span class="cap">A</span>tlantic</span>
        <span class="word"><span class="cap">O</span>cean</span>
      </div>
      <div class="type-tag">Proper Noun</div>
    </div>

    
    <div class="noun-card">
      <div class="icon-wrap">🗺️</div>
      <div class="phrase-wrap">
        <span class="word"><span class="cap">U</span>nited</span>
        <span class="word"><span class="cap">S</span>tates</span>
      </div>
      <div class="type-tag">Proper Noun</div>
    </div>

    
    <div class="noun-card">
      <div class="icon-wrap">🗽</div>
      <div class="phrase-wrap">
        <span class="word"><span class="cap">S</span>tatue</span>
        <div class="connector-wrap">
          <span class="connector-word">of</span>
          <span class="connector-label">lowercase</span>
        </div>
        <span class="word"><span class="cap">L</span>iberty</span>
      </div>
      <div class="type-tag">Proper Noun</div>
    </div>
  </div>
</body>
</html>

Identifying Common and Proper Nouns in Sentences

<!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>Proper and Common Nouns in Sentences</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: transparent;
      padding: 12px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      user-select: none;
    }

    /* Controls / Filter Bar */
    .controls {
      display: flex;
      justify-content: center;
      gap: 8px;
      flex-wrap: wrap;
    }

    .filter-btn {
      appearance: none;
      border: 1px solid #e2e8f0;
      background: #ffffff;
      padding: 6px 12px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      color: #64748b;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: all 0.2s ease;
    }

    .filter-btn .dot-icon {
      width: 8px;
      height: 8px;
      border-radius: 50%;
    }

    .filter-btn.active {
      border-color: #1e2945;
      color: #1e2945;
      box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    }

    .filter-btn[data-type="proper"].active {
      background: #f5f3ff;
      border-color: #7c3aed;
      color: #6d28d9;
    }

    .filter-btn[data-type="common"].active {
      background: #f0f9ff;
      border-color: #0284c7;
      color: #0369a1;
    }

    /* Sentence Strips */
    .strips-container {
      display: flex;
      flex-direction: column;
      gap: 10px;
      width: 100%;
    }

    .strip {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 12px;
      padding: 12px 14px;
      display: flex;
      flex-direction: column;
      gap: 8px;
      box-shadow: 0 1px 3px rgba(0,0,0,0.03);
    }

    .strip-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: #94a3b8;
    }

    .strip-sentence {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 6px 6px;
      font-size: 16px;
      line-height: 1.4;
      color: #334155;
    }

    .word-plain {
      display: inline-block;
      padding: 4px 0;
    }

    /* Noun Boxes */
    .noun-box {
      display: inline-flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 3px 8px;
      border-radius: 8px;
      border-width: 1.5px;
      border-style: solid;
      transition: opacity 0.25s ease, transform 0.2s ease;
      cursor: pointer;
    }

    .noun-box .word {
      font-weight: 700;
      line-height: 1.2;
    }

    .noun-box .tag {
      font-size: 10px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.03em;
      margin-top: 2px;
      line-height: 1;
    }

    /* Proper Noun Styling (Purple) */
    .noun-proper {
      background: #f5f3ff;
      border-color: #8b5cf6;
      color: #5b21b6;
    }

    .noun-proper .tag {
      color: #7c3aed;
    }

    /* Common Noun Styling (Blue) */
    .noun-common {
      background: #f0f9ff;
      border-color: #38bdf8;
      color: #0369a1;
    }

    .noun-common .tag {
      color: #0284c7;
    }

    /* Dimmed state when filtering */
    .dimmed {
      opacity: 0.25;
      transform: scale(0.97);
    }

    @media (max-width: 420px) {
      .strip-sentence {
        font-size: 14px;
        gap: 4px 4px;
      }
      .noun-box {
        padding: 2px 6px;
      }
      .noun-box .tag {
        font-size: 9px;
      }
      .filter-btn {
        font-size: 12px;
        padding: 5px 10px;
      }
    }
  </style>
</head>
<body>

  <div class="controls">
    <button class="filter-btn active" data-type="all">All Nouns</button>
    <button class="filter-btn" data-type="proper">
      <span class="dot-icon" style="background:#8b5cf6;"></span>Proper
    </button>
    <button class="filter-btn" data-type="common">
      <span class="dot-icon" style="background:#0ea5e9;"></span>Common
    </button>
  </div>

  <div class="strips-container">
    
    
    <div class="strip">
      <div class="strip-header">
        <span>Sentence 1</span>
        <span>Proper at Start</span>
      </div>
      <div class="strip-sentence">
        <div class="noun-box noun-proper" data-noun="proper">
          <span class="word">Leo</span>
          <span class="tag">Proper (Start)</span>
        </div>
        <span class="word-plain">traveled to the quiet</span>
        <div class="noun-box noun-common" data-noun="common">
          <span class="word">beach.</span>
          <span class="tag">Common (End)</span>
        </div>
      </div>
    </div>

    
    <div class="strip">
      <div class="strip-header">
        <span>Sentence 2</span>
        <span>Proper in Middle</span>
      </div>
      <div class="strip-sentence">
        <span class="word-plain">The excited</span>
        <div class="noun-box noun-common" data-noun="common">
          <span class="word">tourists</span>
          <span class="tag">Common (Start)</span>
        </div>
        <span class="word-plain">visited</span>
        <div class="noun-box noun-proper" data-noun="proper">
          <span class="word">Chicago</span>
          <span class="tag">Proper (Middle)</span>
        </div>
        <span class="word-plain">last</span>
        <div class="noun-box noun-common" data-noun="common">
          <span class="word">weekend.</span>
          <span class="tag">Common (End)</span>
        </div>
      </div>
    </div>

    
    <div class="strip">
      <div class="strip-header">
        <span>Sentence 3</span>
        <span>Proper at End</span>
      </div>
      <div class="strip-sentence">
        <span class="word-plain">We bought a new</span>
        <div class="noun-box noun-common" data-noun="common">
          <span class="word">book</span>
          <span class="tag">Common (Middle)</span>
        </div>
        <span class="word-plain">by</span>
        <div class="noun-box noun-proper" data-noun="proper">
          <span class="word">Dav Pilkey.</span>
          <span class="tag">Proper (End)</span>
        </div>
      </div>
    </div>

  </div>

  <script>
    const filterBtns = document.querySelectorAll('.filter-btn');
    const nounBoxes = document.querySelectorAll('.noun-box');

    filterBtns.forEach(btn => {
      btn.addEventListener('click', () => {
        const type = btn.getAttribute('data-type');

        filterBtns.forEach(b => b.classList.remove('active'));
        btn.classList.add('active');

        nounBoxes.forEach(box => {
          const nounType = box.getAttribute('data-noun');
          if (type === 'all' || nounType === type) {
            box.classList.remove('dimmed');
          } else {
            box.classList.add('dimmed');
          }
        });
      });
    });

    nounBoxes.forEach(box => {
      box.addEventListener('click', () => {
        const nounType = box.getAttribute('data-noun');
        const targetBtn = document.querySelector(`.filter-btn[data-type="${nounType}"]`);
        if (targetBtn) targetBtn.click();
      });
    });
  </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: #f8fafc;
      color: #1e293b;
      padding: 12px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    /* Flowchart Section */
    .flow-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 12px;
      padding: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 10px;
    }

    .question-node {
      background: #eff6ff;
      border: 2px solid #3b82f6;
      border-radius: 10px;
      padding: 8px 12px;
      text-align: center;
      font-size: 14px;
      font-weight: 700;
      color: #1d4ed8;
      max-width: 95%;
      box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    }

    .branches {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
      width: 100%;
    }

    .branch {
      border-radius: 10px;
      padding: 8px;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 4px;
      transition: all 0.3s ease;
      border: 2px solid transparent;
    }

    .branch-yes {
      background: #f0fdf4;
      border-color: #bbf7d0;
    }

    .branch-no {
      background: #f8fafc;
      border-color: #e2e8f0;
    }

    .branch.highlight-yes {
      border-color: #16a34a;
      box-shadow: 0 0 0 2px #86efac;
      background: #dcfce7;
    }

    .branch.highlight-no {
      border-color: #64748b;
      box-shadow: 0 0 0 2px #cbd5e1;
      background: #f1f5f9;
    }

    .badge-tag {
      font-size: 11px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      padding: 2px 8px;
      border-radius: 20px;
    }

    .badge-yes { background: #22c55e; color: #ffffff; }
    .badge-no { background: #64748b; color: #ffffff; }

    .branch-title {
      font-size: 14px;
      font-weight: 700;
      line-height: 1.2;
    }

    .branch-yes .branch-title { color: #15803d; }
    .branch-no .branch-title { color: #334155; }

    .branch-sub {
      font-size: 12px;
      color: #64748b;
      line-height: 1.2;
    }

    /* Comparison Section */
    .examples-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
    }

    @media (max-width: 480px) {
      .examples-container {
        grid-template-columns: 1fr;
      }
    }

    .example-box {
      background: #ffffff;
      border: 2px solid #e2e8f0;
      border-radius: 12px;
      padding: 10px 12px;
      cursor: pointer;
      display: flex;
      flex-direction: column;
      gap: 6px;
      transition: all 0.25s ease;
      user-select: none;
    }

    .example-box.active {
      border-color: #3b82f6;
      background: #ffffff;
      box-shadow: 0 2px 8px rgba(59, 130, 246, 0.15);
    }

    .sentence-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 11px;
      font-weight: 700;
      color: #94a3b8;
      text-transform: uppercase;
    }

    .sentence-text {
      font-size: 15px;
      color: #1e293b;
      line-height: 1.3;
    }

    .hl-common {
      background: #e2e8f0;
      color: #0f172a;
      padding: 1px 4px;
      border-radius: 4px;
      font-weight: 700;
      border-bottom: 2px solid #94a3b8;
    }

    .hl-proper {
      background: #dcfce7;
      color: #14532d;
      padding: 1px 4px;
      border-radius: 4px;
      font-weight: 700;
      border-bottom: 2px solid #22c55e;
    }

    .analysis-pill {
      margin-top: 2px;
      font-size: 12px;
      line-height: 1.25;
      padding: 6px 8px;
      border-radius: 6px;
      font-weight: 500;
    }

    .analysis-common {
      background: #f1f5f9;
      color: #334155;
      border-left: 3px solid #64748b;
    }

    .analysis-proper {
      background: #f0fdf4;
      color: #166534;
      border-left: 3px solid #22c55e;
    }
  </style>
</head>
<body>

  
  <div class="flow-card">
    <div class="question-node">
      Does the noun name a specific, unique person, place, or brand?
    </div>
    <div class="branches">
      <div id="branchYes" class="branch branch-yes">
        <span class="badge-tag badge-yes">YES →</span>
        <div class="branch-title">Proper Noun</div>
        <div class="branch-sub">Always Capitalize</div>
      </div>
      <div id="branchNo" class="branch branch-no">
        <span class="badge-tag badge-no">NO →</span>
        <div class="branch-title">Common Noun</div>
        <div class="branch-sub">Capital only if Word #1</div>
      </div>
    </div>
  </div>

  
  <div class="examples-container">
    
    <div id="card1" class="example-box" onclick="selectCard(1)">
      <div class="sentence-header">
        <span>Example 1</span>
        <span>Tap to test</span>
      </div>
      <div class="sentence-text">
        <span class="hl-common">Tigers</span> hunt at night.
      </div>
      <div class="analysis-pill analysis-common">
        <strong>Common Noun</strong><br>
        Capitalized only because it starts the sentence.
      </div>
    </div>

    
    <div id="card2" class="example-box active" onclick="selectCard(2)">
      <div class="sentence-header">
        <span>Example 2</span>
        <span>Tap to test</span>
      </div>
      <div class="sentence-text">
        <span class="hl-proper">Tony the Tiger</span> loves cereal.
      </div>
      <div class="analysis-pill analysis-proper">
        <strong>Proper Noun</strong><br>
        Capitalized because it is a specific name.
      </div>
    </div>
  </div>

  <script>
    function selectCard(num) {
      const card1 = document.getElementById('card1');
      const card2 = document.getElementById('card2');
      const branchYes = document.getElementById('branchYes');
      const branchNo = document.getElementById('branchNo');

      if (num === 1) {
        card1.classList.add('active');
        card2.classList.remove('active');
        branchNo.classList.add('highlight-no');
        branchYes.classList.remove('highlight-yes');
      } else {
        card2.classList.add('active');
        card1.classList.remove('active');
        branchYes.classList.add('highlight-yes');
        branchNo.classList.remove('highlight-no');
      }
    }

    // Initialize state
    selectCard(2);
  </script>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <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;
      padding: 12px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      min-height: 100vh;
    }
    .container {
      width: 100%;
      max-width: 600px;
      margin: 0 auto;
    }
    .grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      width: 100%;
    }
    .column {
      border-radius: 12px;
      padding: 12px 10px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .col-common {
      background: #f0f7ff;
      border: 1.5px solid #bfdbfe;
    }
    .col-proper {
      background: #f5f0ff;
      border: 1.5px solid #ddd6fe;
    }
    .col-header {
      text-align: center;
      padding-bottom: 8px;
      border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    }
    .col-title {
      font-size: 15px;
      font-weight: 700;
      line-height: 1.2;
    }
    .col-common .col-title {
      color: #1d4ed8;
    }
    .col-proper .col-title {
      color: #6d28d9;
    }
    .col-sub {
      font-size: 11px;
      font-weight: 700;
      color: #64748b;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-top: 3px;
    }
    .item-card {
      background: #ffffff;
      border-radius: 10px;
      padding: 10px 10px;
      display: flex;
      align-items: center;
      gap: 10px;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
      border: 1px solid rgba(0, 0, 0, 0.04);
      transition: background-color 0.15s ease, box-shadow 0.15s ease;
    }
    .item-card:hover {
      box-shadow: 0 3px 6px rgba(0, 0, 0, 0.08);
      background-color: #fafbfc;
    }
    .icon-box {
      font-size: 24px;
      line-height: 1;
      width: 38px;
      height: 38px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: #f8fafc;
      border-radius: 8px;
      flex-shrink: 0;
    }
    .col-common .icon-box {
      background: #e0f2fe;
    }
    .col-proper .icon-box {
      background: #ede9fe;
    }
    .label {
      font-size: 15px;
      font-weight: 600;
      color: #1e293b;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .cap-gold {
      display: inline-block;
      color: #92400e;
      font-weight: 800;
      background: #fef3c7;
      padding: 0 3px;
      border-radius: 3px;
      border-bottom: 2px solid #f59e0b;
      line-height: 1.1;
    }

    @media (max-width: 380px) {
      body {
        padding: 8px;
      }
      .grid {
        gap: 8px;
      }
      .column {
        padding: 10px 6px;
        gap: 8px;
      }
      .col-title {
        font-size: 13px;
      }
      .col-sub {
        font-size: 10px;
      }
      .item-card {
        padding: 8px 6px;
        gap: 6px;
      }
      .icon-box {
        width: 32px;
        height: 32px;
        font-size: 20px;
      }
      .label {
        font-size: 13px;
      }
      .cap-gold {
        padding: 0 2px;
      }
    }
  </style>
</head>
<body>
  <div class="container">
    <div class="grid">
      
      <div class="column col-common">
        <div class="col-header">
          <div class="col-title">Common Nouns</div>
          <div class="col-sub">General</div>
        </div>

        <div class="item-card">
          <div class="icon-box">🏙️</div>
          <div class="label">city</div>
        </div>

        <div class="item-card">
          <div class="icon-box">👧</div>
          <div class="label">friend</div>
        </div>

        <div class="item-card">
          <div class="icon-box">🐶</div>
          <div class="label">dog</div>
        </div>
      </div>

      
      <div class="column col-proper">
        <div class="col-header">
          <div class="col-title">Proper Nouns</div>
          <div class="col-sub">Specific</div>
        </div>

        <div class="item-card">
          <div class="icon-box">🗽</div>
          <div class="label"><span class="cap-gold">N</span>ew <span class="cap-gold">Y</span>ork</div>
        </div>

        <div class="item-card">
          <div class="icon-box">🏷️</div>
          <div class="label"><span class="cap-gold">M</span>aya</div>
        </div>

        <div class="item-card">
          <div class="icon-box">🐕</div>
          <div class="label"><span class="cap-gold">B</span>arnaby</div>
        </div>
      </div>
    </div>
  </div>
</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>Common vs Proper Nouns</title>
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    }

    body {
      background: #f8fafc;
      color: #1e2945;
      padding: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 100%;
    }

    .diagram {
      width: 100%;
      max-width: 540px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .headers {
      display: grid;
      grid-template-columns: 1fr 36px 1.4fr;
      align-items: center;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      color: #64748b;
      padding: 0 8px;
    }

    .headers .col-right {
      text-align: left;
      padding-left: 8px;
    }

    .headers .col-left {
      text-align: right;
      padding-right: 8px;
    }

    .row-card {
      display: grid;
      grid-template-columns: 1fr 36px 1.4fr;
      align-items: center;
      background: #ffffff;
      border: 2px solid #e2e8f0;
      border-radius: 12px;
      padding: 10px 12px;
      cursor: pointer;
      transition: border-color 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
      user-select: none;
    }

    .row-card:hover {
      border-color: #cbd5e1;
      background-color: #fcfdfe;
    }

    .row-card.active {
      border-color: #f59e0b;
      background-color: #fffbeb;
      box-shadow: 0 4px 12px rgba(245, 158, 11, 0.15);
    }

    .common-noun {
      text-align: right;
      font-size: 16px;
      font-weight: 600;
      color: #475569;
      padding-right: 8px;
    }

    .arrow-box {
      display: flex;
      align-items: center;
      justify-content: center;
      color: #94a3b8;
      font-size: 16px;
      transition: color 0.25s ease, transform 0.25s ease;
    }

    .row-card.active .arrow-box {
      color: #f59e0b;
      transform: translateX(2px);
    }

    .proper-noun {
      text-align: left;
      font-size: 17px;
      font-weight: 600;
      color: #1e2945;
      padding-left: 8px;
    }

    .cap {
      display: inline-block;
      font-size: 21px;
      font-weight: 800;
      color: #d97706;
      background: #fef3c7;
      border-radius: 4px;
      padding: 0 3px;
      line-height: 1.1;
      box-shadow: 0 0 8px rgba(245, 158, 11, 0.6);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

    .row-card.active .cap {
      color: #b45309;
      background: #fde68a;
      box-shadow: 0 0 12px rgba(245, 158, 11, 0.9);
      transform: scale(1.08);
    }

    .nav-controls {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      margin-top: 8px;
    }

    .ctrl-btn {
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      padding: 6px 14px;
      font-size: 13px;
      font-weight: 600;
      color: #334155;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 6px;
      transition: background 0.2s ease, border-color 0.2s ease;
    }

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

    .dot-group {
      display: flex;
      gap: 6px;
    }

    .dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #cbd5e1;
      cursor: pointer;
      transition: background 0.25s ease, transform 0.25s ease;
    }

    .dot.active {
      background: #f59e0b;
      transform: scale(1.3);
    }

    @media (max-width: 380px) {
      .common-noun { font-size: 14px; }
      .proper-noun { font-size: 15px; }
      .cap { font-size: 18px; }
      .headers { font-size: 11px; }
    }
  </style>
</head>
<body>

  <div class="diagram">
    <div class="headers">
      <div class="col-left">Common Noun</div>
      <div></div>
      <div class="col-right">Proper Noun (Specific)</div>
    </div>

    
    <div class="row-card active" data-index="0">
      <div class="common-noun">cereal</div>
      <div class="arrow-box">→</div>
      <div class="proper-noun"><span class="cap">C</span>heerios</div>
    </div>

    
    <div class="row-card" data-index="1">
      <div class="common-noun">ocean</div>
      <div class="arrow-box">→</div>
      <div class="proper-noun"><span class="cap">P</span>acific <span class="cap">O</span>cean</div>
    </div>

    
    <div class="row-card" data-index="2">
      <div class="common-noun">day</div>
      <div class="arrow-box">→</div>
      <div class="proper-noun"><span class="cap">F</span>riday</div>
    </div>

    
    <div class="row-card" data-index="3">
      <div class="common-noun">author</div>
      <div class="arrow-box">→</div>
      <div class="proper-noun"><span class="cap">D</span>r. <span class="cap">S</span>euss</div>
    </div>

    
    <div class="nav-controls">
      <button class="ctrl-btn" id="playToggle">⏸ Pause</button>
      <div class="dot-group">
        <div class="dot active" data-index="0"></div>
        <div class="dot" data-index="1"></div>
        <div class="dot" data-index="2"></div>
        <div class="dot" data-index="3"></div>
      </div>
    </div>
  </div>

  <script>
    const rows = document.querySelectorAll('.row-card');
    const dots = document.querySelectorAll('.dot');
    const playBtn = document.getElementById('playToggle');
    let currentIndex = 0;
    let timer = null;
    let isPlaying = true;

    function setRow(index) {
      currentIndex = index;
      rows.forEach((row, i) => {
        row.classList.toggle('active', i === index);
      });
      dots.forEach((dot, i) => {
        dot.classList.toggle('active', i === index);
      });
    }

    function nextRow() {
      setRow((currentIndex + 1) % rows.length);
    }

    function startTimer() {
      stopTimer();
      timer = setInterval(nextRow, 3000);
      isPlaying = true;
      playBtn.textContent = '⏸ Pause';
    }

    function stopTimer() {
      if (timer) {
        clearInterval(timer);
        timer = null;
      }
      isPlaying = false;
      playBtn.textContent = '▶ Auto';
    }

    rows.forEach((row, i) => {
      row.addEventListener('click', () => {
        setRow(i);
        stopTimer();
      });
    });

    dots.forEach((dot, i) => {
      dot.addEventListener('click', () => {
        setRow(i);
        stopTimer();
      });
    });

    playBtn.addEventListener('click', () => {
      if (isPlaying) {
        stopTimer();
      } else {
        nextRow();
        startTimer();
      }
    });

    startTimer();
  </script>
</body>
</html>

OGE.4.L.1

Aligned learning resources

Related diagrams