<!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>Independent vs. Dependent Clauses</title>
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    }

    body {
      background: transparent;
      padding: 12px;
      color: #1e2945;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .cards-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 12px;
      width: 100%;
    }

    .clause-card {
      background: #ffffff;
      border: 2px solid #e2e8f0;
      border-radius: 14px;
      padding: 14px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .clause-card.independent {
      border-color: #22c55e;
    }

    .clause-card.dependent {
      border-color: #f59e0b;
    }

    .card-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-bottom: 8px;
      border-bottom: 1px solid #f1f5f9;
    }

    .header-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 20px;
    }

    .independent .header-badge {
      background: #dcfce7;
      color: #15803d;
    }

    .dependent .header-badge {
      background: #fef3c7;
      color: #b45309;
    }

    .clause-title {
      font-size: 13px;
      font-weight: 600;
      color: #64748b;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .sentence-box {
      background: #f8fafc;
      border: 1px dashed #cbd5e1;
      border-radius: 10px;
      padding: 12px 14px;
      font-size: 16px;
      font-weight: 600;
      line-height: 1.4;
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 48px;
    }

    .independent .sentence-box {
      border-color: #86efac;
      background: #f0fdf4;
      color: #14532d;
    }

    .dependent .sentence-box {
      border-color: #fcd34d;
      background: #fffbeb;
      color: #78350f;
    }

    .tag-container {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      align-items: center;
    }

    .tag-plus {
      font-size: 14px;
      font-weight: 700;
      color: #94a3b8;
    }

    .tag {
      display: inline-flex;
      flex-direction: column;
      padding: 5px 8px;
      border-radius: 8px;
      font-size: 12px;
      background: #f1f5f9;
      border: 1px solid #e2e8f0;
    }

    .tag-label {
      font-size: 10px;
      font-weight: 700;
      text-transform: uppercase;
      color: #64748b;
      margin-bottom: 2px;
    }

    .tag-word {
      font-size: 13px;
      font-weight: 600;
      color: #1e2945;
    }

    .tag.subordinator {
      background: #fef3c7;
      border-color: #fde68a;
    }
    .tag.subordinator .tag-label {
      color: #b45309;
    }
    .tag.subordinator .tag-word {
      color: #92400e;
    }

    .tag.subject {
      background: #e0f2fe;
      border-color: #bae6fd;
    }
    .tag.subject .tag-label {
      color: #0369a1;
    }
    .tag.subject .tag-word {
      color: #0c4a6e;
    }

    .tag.verb {
      background: #f3e8ff;
      border-color: #e9d5ff;
    }
    .tag.verb .tag-label {
      color: #7e22ce;
    }
    .tag.verb .tag-word {
      color: #581c87;
    }

    .status-note {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      padding: 8px 10px;
      border-radius: 8px;
    }

    .independent .status-note {
      background: #f0fdf4;
      color: #166534;
      border-left: 3px solid #22c55e;
    }

    .dependent .status-note {
      background: #fffbeb;
      color: #92400e;
      border-left: 3px solid #f59e0b;
    }

    .test-btn {
      background: #f8fafc;
      border: 1px solid #cbd5e1;
      color: #334155;
      padding: 8px 14px;
      border-radius: 8px;
      font-size: 13px;
      font-weight: 600;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      margin: 0 auto;
      transition: background 0.15s ease;
    }

    .test-btn:hover {
      background: #f1f5f9;
    }

    .test-btn:active {
      background: #e2e8f0;
    }
  </style>
</head>
<body>

  <div class="cards-grid">
    
    <div class="clause-card independent">
      <div class="card-header">
        <span class="clause-title">Independent Clause</span>
        <span class="header-badge">✓ Stands Alone</span>
      </div>

      <div class="sentence-box" id="indepText">
        <span>The dragon breathed fire.</span>
        <span style="color:#16a34a; font-size: 18px;">✅</span>
      </div>

      <div class="tag-container">
        <div class="tag subject">
          <span class="tag-label">Subject</span>
          <span class="tag-word">The dragon</span>
        </div>
        <span class="tag-plus">+</span>
        <div class="tag verb">
          <span class="tag-label">Verb</span>
          <span class="tag-word">breathed</span>
        </div>
      </div>

      <div class="status-note" id="indepNote">
        <span>✓</span>
        <span>Full thought — works alone with a period.</span>
      </div>
    </div>

    
    <div class="clause-card dependent">
      <div class="card-header">
        <span class="clause-title">Dependent Clause</span>
        <span class="header-badge">⚠️ Needs Support</span>
      </div>

      <div class="sentence-box" id="depText">
        <span>When the dragon breathed fire...</span>
        <span style="color:#d97706; font-size: 18px;">❓</span>
      </div>

      <div class="tag-container">
        <div class="tag subordinator">
          <span class="tag-label">Conjunction</span>
          <span class="tag-word">When</span>
        </div>
        <span class="tag-plus">+</span>
        <div class="tag subject">
          <span class="tag-label">Subject</span>
          <span class="tag-word">the dragon</span>
        </div>
        <span class="tag-plus">+</span>
        <div class="tag verb">
          <span class="tag-label">Verb</span>
          <span class="tag-word">breathed</span>
        </div>
      </div>

      <div class="status-note" id="depNote">
        <span>⚠️</span>
        <span>Incomplete — leaves us asking: <em>"Then what?"</em></span>
      </div>
    </div>
  </div>

  <button class="test-btn" id="toggleBtn" onclick="toggleTest()">
    <span id="btnIcon">🔍</span>
    <span id="btnLabel">Test with a Period (.)</span>
  </button>

  <script>
    let testingPeriod = false;

    function toggleTest() {
      testingPeriod = !testingPeriod;
      const indepText = document.getElementById('indepText');
      const depText = document.getElementById('depText');
      const indepNote = document.getElementById('indepNote');
      const depNote = document.getElementById('depNote');
      const btnLabel = document.getElementById('btnLabel');
      const btnIcon = document.getElementById('btnIcon');

      if (testingPeriod) {
        indepText.innerHTML = '<span>"The dragon breathed fire."</span><span style="color:#16a34a; font-weight: bold;">Complete sentence!</span>';
        depText.innerHTML = '<span>"When the dragon breathed fire."</span><span style="color:#dc2626; font-weight: bold;">Fragment error!</span>';
        indepNote.innerHTML = '<span>✅</span><span>Makes 100% sense on its own.</span>';
        depNote.innerHTML = '<span>❌</span><span>Cannot end here! Needs an independent clause.</span>';
        btnLabel.textContent = 'Reset View';
        btnIcon.textContent = '↺';
      } else {
        indepText.innerHTML = '<span>The dragon breathed fire.</span><span style="color:#16a34a; font-size: 18px;">✅</span>';
        depText.innerHTML = '<span>When the dragon breathed fire...</span><span style="color:#d97706; font-size: 18px;">❓</span>';
        indepNote.innerHTML = '<span>✓</span><span>Full thought — works alone with a period.</span>';
        depNote.innerHTML = '<span>⚠️</span><span>Incomplete — leaves us asking: <em>"Then what?"</em></span>';
        btnLabel.textContent = 'Test with a Period (.)';
        btnIcon.textContent = '🔍';
      }
    }
  </script>
</body>
</html>

Distinguishing Independent and Dependent Clauses

<!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: #1e293b;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: flex-start;
      gap: 10px;
      padding: 10px 8px;
      user-select: none;
      width: 100%;
      overflow-x: hidden;
    }

    /* Controls Bar */
    .controls {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 6px;
      width: 100%;
      max-width: 520px;
    }

    .step-btn {
      flex: 1 1 auto;
      min-width: 75px;
      padding: 6px 10px;
      font-size: 12px;
      font-weight: 700;
      border: 1px solid #cbd5e1;
      background: #f8fafc;
      color: #334155;
      border-radius: 6px;
      cursor: pointer;
      transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
      text-align: center;
      white-space: nowrap;
    }

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

    .step-btn.active {
      background: #0284c7;
      color: #ffffff;
      border-color: #0284c7;
      box-shadow: 0 1px 4px rgba(2, 132, 199, 0.3);
    }

    .play-btn {
      width: 30px;
      height: 30px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 1px solid #cbd5e1;
      background: #f8fafc;
      color: #1e293b;
      border-radius: 6px;
      font-size: 12px;
      cursor: pointer;
      transition: background-color 0.2s ease;
      flex-shrink: 0;
    }

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

    /* Stage Canvas */
    .stage-container {
      width: 100%;
      max-width: 520px;
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    svg {
      width: 100%;
      height: auto;
      display: block;
    }

    /* Animation Transitions inside SVG */
    .animated-group {
      transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.45s ease;
    }

    /* Step Badge Callout */
    .badge-container {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 12px;
      border-radius: 16px;
      font-size: 12px;
      font-weight: 700;
      transition: all 0.3s ease;
      text-align: center;
    }

    .badge-indep {
      background: #ecfdf5;
      color: #047857;
      border: 1px solid #6ee7b7;
    }

    .badge-dep {
      background: #fffbeb;
      color: #b45309;
      border: 1px solid #fcd34d;
    }

    .badge-complex {
      background: #eff6ff;
      color: #1d4ed8;
      border: 1px solid #93c5fd;
    }

    @media (max-width: 400px) {
      body {
        padding: 8px 4px;
        gap: 8px;
      }
      .step-btn {
        font-size: 11px;
        padding: 5px 6px;
        min-width: 65px;
      }
      .status-badge {
        font-size: 11px;
        padding: 4px 8px;
      }
    }
  </style>
</head>
<body>

  
  <div class="controls">
    <button class="play-btn" id="playBtn" title="Auto Play / Pause" aria-label="Toggle Auto Play">⏸</button>
    <button class="step-btn active" data-step="0">1. Standalone</button>
    <button class="step-btn" data-step="1">2. Add 'After'</button>
    <button class="step-btn" data-step="2">3. Snap Together</button>
  </div>

  
  <div class="stage-container">
    <svg viewBox="0 0 520 116" xmlns="http://www.w3.org/2000/svg">
      <defs>
        <filter id="cardShadow" x="-10%" y="-10%" width="120%" height="130%">
          <feDropShadow dx="0" dy="2" stdDeviation="2" flood-color="#0f172a" flood-opacity="0.1"/>
        </filter>
      </defs>

      
      <g id="groundBase" class="animated-group" transform="translate(0, 0)" opacity="1">
        <rect x="110" y="80" width="300" height="7" rx="3.5" fill="#94a3b8" />
        <rect x="140" y="91" width="240" height="4" rx="2" fill="#cbd5e1" />
        <text x="260" y="108" text-anchor="middle" font-size="11" font-weight="700" fill="#475569">Solid Standalone Base (Complete Sentence)</text>
      </g>

      
      <g id="subWord" class="animated-group" transform="translate(-75, 8)" opacity="0">
        <rect x="0" y="0" width="62" height="66" rx="7" fill="#fef3c7" stroke="#d97706" stroke-width="2" />
        <text x="31" y="24" text-anchor="middle" font-size="8.5" font-weight="800" fill="#92400e" letter-spacing="0.5">SUB-WORD</text>
        <text x="31" y="47" text-anchor="middle" font-size="13" font-weight="800" fill="#78350f">AFTER</text>
        <path d="M 62 33 L 70 33" stroke="#d97706" stroke-width="2" stroke-dasharray="2,2" />
      </g>

      
      <g id="clause1" class="animated-group" transform="translate(110, 8)" filter="url(#cardShadow)">
        
        <path id="clause1ShapeFlat" d="M 0 0 L 294 0 A 7 7 0 0 1 301 7 L 301 59 A 7 7 0 0 1 294 66 L 0 66 A 7 7 0 0 1 -7 59 L -7 7 A 7 7 0 0 1 0 0 Z" fill="#ffffff" stroke="#64748b" stroke-width="2" />
        
        
        <path id="clause1ShapePuzzle" opacity="0" d="M 0 0 L 195 0 A 6 6 0 0 1 201 6 L 201 18 C 201 20, 217 14, 217 33 C 217 52, 201 46, 201 48 L 201 60 A 6 6 0 0 1 195 66 L 0 66 A 6 6 0 0 1 -6 60 L -6 6 A 6 6 0 0 1 0 0 Z" fill="#ffffff" stroke="#d97706" stroke-width="2" />
        
        
        <text id="clause1Text" x="147" y="38" text-anchor="middle" font-size="13.5" font-weight="700" fill="#0f172a">
          We finished our homework.
        </text>
      </g>

      
      <g id="clause2" class="animated-group" transform="translate(540, 8)" opacity="0" filter="url(#cardShadow)">
        
        <path d="M 0 0 L 215 0 A 6 6 0 0 1 221 6 L 221 60 A 6 6 0 0 1 215 66 L 0 66 A 6 6 0 0 1 -6 60 L -6 48 C -6 46, 10 52, 10 33 C 10 14, -6 20, -6 18 L -6 6 A 6 6 0 0 1 0 0 Z" fill="#ecfdf5" stroke="#059669" stroke-width="2" />
        
        <text x="114" y="32" text-anchor="middle" font-size="13" font-weight="700" fill="#064e3b">
          we played soccer.
        </text>
        <text x="114" y="50" text-anchor="middle" font-size="10.5" font-weight="700" fill="#14532d">
          [ Independent Clause ]
        </text>
      </g>

      
      <g id="snapEffect" class="animated-group" transform="translate(282, 41)" opacity="0">
        <circle cx="0" cy="0" r="11" fill="#3b82f6" opacity="0.25" />
        <text x="0" y="4" text-anchor="middle" font-size="11" font-weight="900" fill="#1d4ed8">✦</text>
      </g>
    </svg>
  </div>

  
  <div class="badge-container">
    <div id="statusBadge" class="status-badge badge-indep">
      <span>●</span> <span>Independent Clause (Complete Sentence)</span>
    </div>
  </div>

  <script>
    const steps = [
      {
        badgeClass: 'badge-indep',
        badgeText: 'Independent Clause (Complete Sentence)',
        render: () => {
          // Base visible
          const base = document.getElementById('groundBase');
          base.setAttribute('opacity', '1');
          base.setAttribute('transform', 'translate(0, 0)');
          
          // Clause 1 centered, flat base
          const c1 = document.getElementById('clause1');
          c1.setAttribute('transform', 'translate(110, 8)');
          document.getElementById('clause1ShapeFlat').setAttribute('opacity', '1');
          document.getElementById('clause1ShapePuzzle').setAttribute('opacity', '0');
          
          const text1 = document.getElementById('clause1Text');
          text1.textContent = 'We finished our homework.';
          text1.setAttribute('x', '147');
          text1.setAttribute('fill', '#0f172a');

          // Sub-word hidden offstage
          const sub = document.getElementById('subWord');
          sub.setAttribute('opacity', '0');
          sub.setAttribute('transform', 'translate(-75, 8)');

          // Clause 2 hidden offstage
          const c2 = document.getElementById('clause2');
          c2.setAttribute('opacity', '0');
          c2.setAttribute('transform', 'translate(540, 8)');

          // Snap effect off
          document.getElementById('snapEffect').setAttribute('opacity', '0');
        }
      },
      {
        badgeClass: 'badge-dep',
        badgeText: 'Dependent Clause (Needs an anchor!)',
        render: () => {
          // Base dropped away
          const base = document.getElementById('groundBase');
          base.setAttribute('opacity', '0');
          base.setAttribute('transform', 'translate(0, 15)');

          // Sub-word slid into view
          const sub = document.getElementById('subWord');
          sub.setAttribute('opacity', '1');
          sub.setAttribute('transform', 'translate(10, 8)');

          // Clause 1 transforms to puzzle tab
          const c1 = document.getElementById('clause1');
          c1.setAttribute('transform', 'translate(78, 8)');
          document.getElementById('clause1ShapeFlat').setAttribute('opacity', '0');
          document.getElementById('clause1ShapePuzzle').setAttribute('opacity', '1');

          const text1 = document.getElementById('clause1Text');
          text1.textContent = 'we finished our homework...';
          text1.setAttribute('x', '100');
          text1.setAttribute('fill', '#92400e');

          // Clause 2 waiting on right side within viewBox
          const c2 = document.getElementById('clause2');
          c2.setAttribute('opacity', '0.3');
          c2.setAttribute('transform', 'translate(330, 8)');

          // Snap effect off
          document.getElementById('snapEffect').setAttribute('opacity', '0');
        }
      },
      {
        badgeClass: 'badge-complex',
        badgeText: 'Complex Sentence (Complete & Connected)',
        render: () => {
          // Ground base stays hidden
          document.getElementById('groundBase').setAttribute('opacity', '0');

          // Sub word docked
          const sub = document.getElementById('subWord');
          sub.setAttribute('opacity', '1');
          sub.setAttribute('transform', 'translate(10, 8)');

          // Clause 1 on the left
          const c1 = document.getElementById('clause1');
          c1.setAttribute('transform', 'translate(78, 8)');
          document.getElementById('clause1ShapeFlat').setAttribute('opacity', '0');
          document.getElementById('clause1ShapePuzzle').setAttribute('opacity', '1');

          const text1 = document.getElementById('clause1Text');
          text1.textContent = 'we finished our homework,';
          text1.setAttribute('x', '100');
          text1.setAttribute('fill', '#0f172a');

          // Clause 2 snapped perfectly into puzzle slot
          const c2 = document.getElementById('clause2');
          c2.setAttribute('opacity', '1');
          c2.setAttribute('transform', 'translate(282, 8)');

          // Snap effect flashes
          const snap = document.getElementById('snapEffect');
          snap.setAttribute('transform', 'translate(282, 41)');
          snap.setAttribute('opacity', '1');
        }
      }
    ];

    let currentStep = 0;
    let isPlaying = true;
    let timer = null;

    const stepBtns = document.querySelectorAll('.step-btn');
    const playBtn = document.getElementById('playBtn');
    const statusBadge = document.getElementById('statusBadge');

    function updateStep(idx) {
      currentStep = idx;
      stepBtns.forEach((btn, i) => {
        btn.classList.toggle('active', i === currentStep);
      });

      const s = steps[currentStep];
      statusBadge.className = `status-badge ${s.badgeClass}`;
      statusBadge.innerHTML = `<span>●</span> <span>${s.badgeText}</span>`;
      s.render();
    }

    function nextStep() {
      const next = (currentStep + 1) % steps.length;
      updateStep(next);
    }

    function startTimer() {
      stopTimer();
      timer = setInterval(nextStep, 3400);
      playBtn.textContent = '⏸';
      isPlaying = true;
    }

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

    // Step button click handlers
    stepBtns.forEach(btn => {
      btn.addEventListener('click', () => {
        const stepIndex = parseInt(btn.getAttribute('data-step'), 10);
        updateStep(stepIndex);
        stopTimer();
      });
    });

    // Play/Pause button handler
    playBtn.addEventListener('click', () => {
      if (isPlaying) {
        stopTimer();
      } else {
        startTimer();
      }
    });

    // Initialize
    updateStep(0);
    startTimer();
  </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: #0f172a;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 100%;
      padding: 10px 8px;
    }

    .tester-tabs {
      display: flex;
      gap: 8px;
      margin-bottom: 12px;
      width: 100%;
      max-width: 440px;
      justify-content: center;
    }

    .tab-btn {
      flex: 1;
      padding: 8px 8px;
      font-size: 12px;
      line-height: 1.35;
      font-weight: 600;
      border: 1.5px solid #cbd5e1;
      border-radius: 8px;
      background: #ffffff;
      color: #475569;
      cursor: pointer;
      text-align: center;
      transition: all 0.2s ease;
      white-space: normal;
      word-break: break-word;
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
    }

    .tab-btn:hover {
      background: #f8fafc;
      border-color: #94a3b8;
    }

    .tab-btn.active-indep {
      border-color: #059669;
      background: #ecfdf5;
      color: #064e3b;
      font-weight: 700;
      box-shadow: 0 2px 6px rgba(5, 150, 105, 0.2);
    }

    .tab-btn.active-dep {
      border-color: #0284c7;
      background: #f0f9ff;
      color: #075985;
      font-weight: 700;
      box-shadow: 0 2px 6px rgba(2, 132, 199, 0.2);
    }

    .chart-container {
      position: relative;
      width: 100%;
      max-width: 440px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 10px;
    }

    .node {
      border-radius: 10px;
      padding: 9px 12px;
      font-size: 13px;
      font-weight: 700;
      text-align: center;
      background: #ffffff;
      border: 2px solid #cbd5e1;
      transition: all 0.25s ease;
      width: 100%;
      max-width: 290px;
    }

    .node.step1 {
      max-width: 240px;
    }

    .node.active {
      border-color: #d97706;
      background: #fffbeb;
      color: #78350f;
      box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.15);
    }

    .sub-words {
      display: block;
      font-size: 11px;
      font-weight: 600;
      color: #92400e;
      margin-top: 3px;
      letter-spacing: 0.2px;
    }

    .connector-down {
      width: 2px;
      height: 18px;
      background: #94a3b8;
      position: relative;
    }

    .connector-down::after {
      content: "YES";
      position: absolute;
      left: 6px;
      top: 1px;
      font-size: 10px;
      font-weight: 800;
      color: #047857;
      background: #ecfdf5;
      padding: 0 3px;
      border-radius: 3px;
      line-height: 1.2;
    }

    .branches {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      width: 100%;
    }

    .branch-col {
      display: flex;
      flex-direction: column;
      align-items: center;
      transition: all 0.25s ease;
    }

    .branch-tag {
      font-size: 11px;
      font-weight: 800;
      padding: 3px 10px;
      border-radius: 4px;
      margin-bottom: 6px;
      letter-spacing: 0.5px;
      border: 1px solid transparent;
    }

    .tag-no {
      background: #dcfce7;
      color: #14532d;
      border-color: #86efac;
    }

    .tag-yes {
      background: #e0f2fe;
      color: #075985;
      border-color: #7dd3fc;
    }

    .result-card {
      width: 100%;
      border-radius: 10px;
      padding: 10px 8px;
      text-align: center;
      border: 2px solid #cbd5e1;
      background: #f8fafc;
      color: #334155;
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 4px;
      min-height: 74px;
      justify-content: center;
    }

    .result-title {
      font-size: 13px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.4px;
    }

    .result-status {
      font-size: 11.5px;
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    .card-indep.highlight {
      border-color: #059669;
      background: #ecfdf5;
      color: #064e3b;
      box-shadow: 0 3px 10px rgba(5, 150, 105, 0.2);
    }

    .card-dep.highlight {
      border-color: #0284c7;
      background: #f0f9ff;
      color: #075985;
      box-shadow: 0 3px 10px rgba(2, 132, 199, 0.2);
    }

    /* Clear, accessible muted styling for inactive branch */
    .branch-col.dimmed {
      opacity: 0.65;
    }

    .branch-col.dimmed .result-card {
      background: #f1f5f9;
      border-color: #cbd5e1;
      color: #475569;
    }

    .branch-col.dimmed .result-title {
      color: #334155;
    }

    .branch-col.dimmed .result-status {
      color: #475569;
    }
  </style>
</head>
<body>

  <div class="tester-tabs">
    <button id="btnIndep" class="tab-btn active-indep" onclick="setMode('indep')" type="button">
      "Pizza arrived cold."
    </button>
    <button id="btnDep" class="tab-btn" onclick="setMode('dep')" type="button">
      "Because pizza arrived cold..."
    </button>
  </div>

  <div class="chart-container">
    <div id="node1" class="node step1 active">
      1. Subject + Verb?
    </div>

    <div class="connector-down"></div>

    <div id="node2" class="node step2 active">
      2. Subordinating Word?
      <span class="sub-words">Because · Although · If · When · Since</span>
    </div>

    <div class="branches">
      <div id="colNo" class="branch-col">
        <span class="branch-tag tag-no">NO</span>
        <div id="cardIndep" class="result-card card-indep highlight">
          <span class="result-title">Independent</span>
          <span class="result-status">✓ Full Stop Allowed</span>
        </div>
      </div>

      <div id="colYes" class="branch-col dimmed">
        <span class="branch-tag tag-yes">YES</span>
        <div id="cardDep" class="result-card card-dep">
          <span class="result-title">Dependent</span>
          <span class="result-status">✗ Fragment Alone</span>
        </div>
      </div>
    </div>
  </div>

  <script>
    function setMode(mode) {
      const btnIndep = document.getElementById('btnIndep');
      const btnDep = document.getElementById('btnDep');
      const colNo = document.getElementById('colNo');
      const colYes = document.getElementById('colYes');
      const cardIndep = document.getElementById('cardIndep');
      const cardDep = document.getElementById('cardDep');

      if (mode === 'indep') {
        btnIndep.className = 'tab-btn active-indep';
        btnDep.className = 'tab-btn';
        colNo.classList.remove('dimmed');
        cardIndep.classList.add('highlight');
        colYes.classList.add('dimmed');
        cardDep.classList.remove('highlight');
      } else {
        btnDep.className = 'tab-btn active-dep';
        btnIndep.className = 'tab-btn';
        colYes.classList.remove('dimmed');
        cardDep.classList.add('highlight');
        colNo.classList.add('dimmed');
        cardIndep.classList.remove('highlight');
      }
    }
  </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; font-family: system-ui, -apple-system, sans-serif; }
    body {
      background: #f8fafc;
      color: #1e293b;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 100%;
      padding: 16px 12px;
      user-select: none;
    }

    .diagram {
      width: 100%;
      max-width: 540px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 14px;
    }

    /* Formula Row */
    .formula-row {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      width: 100%;
      flex-wrap: wrap;
    }

    .box {
      border-radius: 10px;
      padding: 8px 12px;
      text-align: center;
      min-width: 110px;
      flex: 1;
      max-width: 160px;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .box-subject {
      background: #dbeafe;
      border: 2px solid #1d4ed8;
      color: #1e3a8a;
    }

    .box-predicate {
      background: #f3e8ff;
      border: 2px solid #7e22ce;
      color: #581c87;
    }

    .box-title {
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .box-example {
      font-size: 14px;
      font-weight: 500;
      margin-top: 2px;
      font-style: italic;
    }

    .operator {
      font-size: 20px;
      font-weight: 800;
      color: #64748b;
    }

    .badge-clause {
      background: #dcfce7;
      border: 2px solid #16a34a;
      color: #15803d;
      border-radius: 20px;
      padding: 8px 16px;
      font-weight: 800;
      font-size: 15px;
      box-shadow: 0 0 12px rgba(34, 197, 94, 0.35);
      text-align: center;
    }

    /* Connector */
    .flow-stem {
      display: flex;
      flex-direction: column;
      align-items: center;
      color: #64748b;
      font-size: 13px;
      font-weight: 700;
      gap: 2px;
    }

    .arrow-down {
      width: 2px;
      height: 12px;
      background: #cbd5e1;
    }

    .branch-question {
      background: #ffffff;
      border: 1px solid #cbd5e1;
      padding: 4px 12px;
      border-radius: 12px;
      font-size: 12px;
      font-weight: 700;
      color: #475569;
    }

    /* Branches */
    .branches-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      width: 100%;
    }

    .branch-card {
      background: #ffffff;
      border: 2px solid #e2e8f0;
      border-radius: 12px;
      padding: 12px 10px;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 6px;
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .branch-card:hover {
      box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    }

    .branch-card.active-independent {
      border-color: #2563eb;
      background: #eff6ff;
      box-shadow: 0 0 0 1px #2563eb, 0 4px 12px rgba(37,99,235,0.15);
    }

    .branch-card.active-dependent {
      border-color: #d97706;
      background: #fffbeb;
      box-shadow: 0 0 0 1px #d97706, 0 4px 12px rgba(217,119,6,0.15);
    }

    .tag-pill {
      font-size: 11px;
      font-weight: 800;
      padding: 3px 8px;
      border-radius: 10px;
      text-transform: uppercase;
    }

    .tag-yes { background: #dcfce7; color: #166534; }
    .tag-no { background: #fee2e2; color: #991b1b; }

    .clause-name {
      font-size: 14px;
      font-weight: 800;
      color: #0f172a;
    }

    .sample-text {
      font-size: 13px;
      font-style: italic;
      color: #475569;
      background: rgba(255,255,255,0.8);
      padding: 4px 6px;
      border-radius: 6px;
      border: 1px dashed #cbd5e1;
      width: 100%;
    }

    .marker-sub {
      color: #d97706;
      font-weight: 700;
    }

    @media (max-width: 420px) {
      .formula-row { gap: 4px; }
      .box { min-width: 95px; padding: 6px 8px; }
      .box-title { font-size: 11px; }
      .box-example { font-size: 12px; }
      .badge-clause { font-size: 13px; padding: 6px 12px; }
      .clause-name { font-size: 13px; }
      .sample-text { font-size: 12px; }
    }
  </style>
</head>
<body>

  <div class="diagram">
    
    <div class="formula-row">
      <div class="box box-subject">
        <div class="box-title">Subject</div>
        <div class="box-example">The dragon</div>
      </div>

      <div class="operator">+</div>

      <div class="box box-predicate">
        <div class="box-title">Predicate</div>
        <div class="box-example">breathed fire</div>
      </div>

      <div class="operator">=</div>

      <div class="badge-clause">Clause</div>
    </div>

    
    <div class="flow-stem">
      <div class="arrow-down"></div>
      <div class="branch-question">Can it stand alone?</div>
      <div class="arrow-down"></div>
    </div>

    
    <div class="branches-grid">
      
      <div class="branch-card active-independent" id="cardIndep" onclick="selectCard('indep')">
        <span class="tag-pill tag-yes">✓ Yes</span>
        <div class="clause-name">Independent</div>
        <div class="sample-text">"The dragon breathed fire."</div>
      </div>

      
      <div class="branch-card" id="cardDep" onclick="selectCard('dep')">
        <span class="tag-pill tag-no">⏳ No</span>
        <div class="clause-name">Dependent</div>
        <div class="sample-text"><span class="marker-sub">Because</span> the dragon breathed fire...</div>
      </div>
    </div>
  </div>

  <script>
    function selectCard(type) {
      const indep = document.getElementById('cardIndep');
      const dep = document.getElementById('cardDep');
      if (type === 'indep') {
        indep.classList.add('active-independent');
        dep.classList.remove('active-dependent');
      } else {
        dep.classList.add('active-dependent');
        indep.classList.remove('active-independent');
      }
    }
  </script>
</body>
</html>

OGE.6.L.3

Aligned learning resources

Related diagrams