<!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: 12px 8px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 100%;
    }

    .grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      width: 100%;
      max-width: 620px;
    }

    @media (max-width: 480px) {
      .grid {
        grid-template-columns: 1fr;
        gap: 8px;
      }
    }

    .card-item {
      background: #ffffff;
      border: 2px solid #e2e8f0;
      border-radius: 12px;
      padding: 12px 8px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: space-between;
      text-align: center;
      cursor: pointer;
      user-select: none;
      transition: border-color 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
      min-height: 155px;
    }

    .card-item:hover {
      border-color: #cbd5e1;
    }

    .card-item.active {
      border-color: #3b82f6;
      box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
      background: #f8fafc;
    }

    .visual-stage {
      height: 60px;
      display: flex;
      align-items: flex-end;
      justify-content: center;
      gap: 6px;
      margin-bottom: 8px;
    }

    .mouse {
      font-size: 40px;
      line-height: 1;
      filter: drop-shadow(0 2px 3px rgba(0,0,0,0.1));
    }

    .ladybug {
      font-size: 24px;
      line-height: 1;
      filter: drop-shadow(0 1px 2px rgba(0,0,0,0.1));
    }

    .ant {
      font-size: 15px;
      line-height: 1;
      filter: drop-shadow(0 1px 2px rgba(0,0,0,0.1));
    }

    .formula {
      font-size: 14px;
      font-weight: 700;
      color: #334155;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 4px;
      flex-wrap: wrap;
    }

    .badge {
      display: inline-block;
      padding: 2px 7px;
      border-radius: 6px;
      font-weight: 800;
      font-size: 13px;
      letter-spacing: 0.2px;
    }

    .badge-base {
      background: #e2e8f0;
      color: #334155;
    }

    .badge-er {
      background: #22c55e;
      color: #ffffff;
    }

    .badge-est {
      background: #a855f7;
      color: #ffffff;
    }

    .result-word {
      font-size: 16px;
      font-weight: 800;
      color: #0f172a;
      margin-top: 4px;
    }

    .er-text {
      color: #16a34a;
    }

    .est-text {
      color: #9333ea;
    }

    .helper-text {
      font-size: 12px;
      font-weight: 600;
      color: #64748b;
      margin-top: 4px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
  </style>
</head>
<body>

  <div class="grid">
    
    <div class="card-item active" onclick="selectCard(this)">
      <span class="helper-text">Base</span>
      <div class="visual-stage">
        <span class="mouse" title="Mouse">🐭</span>
      </div>
      <div class="formula">
        <span>small</span>
      </div>
      <div class="result-word">small</div>
    </div>

    
    <div class="card-item" onclick="selectCard(this)">
      <span class="helper-text">Compare 2</span>
      <div class="visual-stage">
        <span class="mouse" style="opacity: 0.4;" title="Mouse">🐭</span>
        <span class="ladybug" title="Bug">🐞</span>
      </div>
      <div class="formula">
        <span>small</span>
        <span>+</span>
        <span class="badge badge-er">-er</span>
      </div>
      <div class="result-word">small<span class="er-text">er</span></div>
    </div>

    
    <div class="card-item" onclick="selectCard(this)">
      <span class="helper-text">Compare 3+</span>
      <div class="visual-stage">
        <span class="mouse" style="opacity: 0.3;" title="Mouse">🐭</span>
        <span class="ladybug" style="opacity: 0.4;" title="Bug">🐞</span>
        <span class="ant" title="Ant">🐜</span>
      </div>
      <div class="formula">
        <span>small</span>
        <span>+</span>
        <span class="badge badge-est">-est</span>
      </div>
      <div class="result-word">small<span class="est-text">est</span></div>
    </div>
  </div>

  <script>
    function selectCard(el) {
      document.querySelectorAll('.card-item').forEach(card => card.classList.remove('active'));
      el.classList.add('active');
    }
  </script>
</body>
</html>

Forming Comparative and Superlative Adjectives with -er and -est

<!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>Drop E Comparative and Superlative</title>
  <script src="{{VENDOR_CDN}}/classace-diagram.js"></script>
  <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;
      align-items: center;
      justify-content: center;
      min-height: 100%;
    }

    .main-wrap {
      width: 100%;
      max-width: 540px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    /* Morph Stage Area */
    .stage-box {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 16px;
      padding: 18px 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 140px;
      position: relative;
    }

    .step-view {
      display: none;
      width: 100%;
      align-items: center;
      justify-content: center;
      gap: 8px;
      flex-wrap: wrap;
    }

    .step-view.active {
      display: flex;
    }

    /* Tile Styling */
    .tile {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: 700;
      padding: 8px 14px;
      border-radius: 10px;
      background: #f1f5f9;
      border: 1.5px solid #cbd5e1;
      color: #0f172a;
      letter-spacing: 0.5px;
    }

    .tile-root {
      background: #f8fafc;
      border-color: #cbd5e1;
    }

    .tile-drop {
      position: relative;
      color: #94a3b8;
      background: #fef2f2;
      border-color: #fca5a5;
    }

    .tile-drop::after {
      content: "";
      position: absolute;
      width: 120%;
      height: 3px;
      background: #ef4444;
      transform: rotate(-30deg);
      border-radius: 2px;
    }

    .tile-suffix {
      background: #eff6ff;
      border-color: #93c5fd;
      color: #2563eb;
    }

    .tile-result {
      background: #ecfdf5;
      border-color: #6ee7b7;
      color: #047857;
    }

    .symbol {
      font-size: 20px;
      font-weight: 800;
      color: #94a3b8;
    }

    /* Side-by-side Companion Box */
    .companion-panel {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 14px;
      padding: 10px 14px;
      display: flex;
      align-items: center;
      justify-content: space-around;
      gap: 6px;
    }

    .pill {
      font-size: 15px;
      font-weight: 600;
      padding: 6px 12px;
      border-radius: 20px;
      background: #f8fafc;
      border: 1.5px solid #e2e8f0;
      color: #64748b;
      transition: all 0.3s ease;
    }

    .pill.highlight {
      background: #eff6ff;
      border-color: #3b82f6;
      color: #1d4ed8;
      font-weight: 700;
      box-shadow: 0 2px 6px rgba(59, 130, 246, 0.15);
    }

    .arrow-icon {
      color: #cbd5e1;
      font-weight: 700;
      font-size: 14px;
    }

    /* Stepper Controls */
    .controls {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
    }

    .step-buttons {
      display: flex;
      gap: 6px;
      flex: 1;
    }

    .btn-step {
      flex: 1;
      font-size: 13px;
      font-weight: 600;
      padding: 8px 6px;
      border-radius: 8px;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      color: #64748b;
      cursor: pointer;
      text-align: center;
      transition: all 0.2s ease;
    }

    .btn-step.active {
      background: #2563eb;
      border-color: #2563eb;
      color: #ffffff;
    }

    .btn-play {
      font-size: 14px;
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      color: #334155;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
    }
  </style>
</head>
<body>

  <div class="main-wrap">
    
    <div class="stage-box">
      
      <div class="step-view step active" data-step="0">
        <div class="tile tile-root">cute</div>
      </div>

      
      <div class="step-view step" data-step="1">
        <div class="tile tile-root">cut</div>
        <div class="tile tile-drop">e</div>
        <span class="symbol">+</span>
        <div class="tile tile-suffix">er</div>
        <span class="symbol">→</span>
        <div class="tile tile-result">cuter</div>
      </div>

      
      <div class="step-view step" data-step="2">
        <div class="tile tile-root">cut</div>
        <div class="tile tile-drop">e</div>
        <span class="symbol">+</span>
        <div class="tile tile-suffix">est</div>
        <span class="symbol">→</span>
        <div class="tile tile-result">cutest</div>
      </div>
    </div>

    
    <div class="companion-panel">
      <div class="pill comp-pill highlight" data-step="0">brave</div>
      <span class="arrow-icon">→</span>
      <div class="pill comp-pill" data-step="1">braver</div>
      <span class="arrow-icon">→</span>
      <div class="pill comp-pill" data-step="2">bravest</div>
    </div>

    
    <div class="controls">
      <div class="step-buttons">
        <button class="btn-step active" id="btn0">1. Base</button>
        <button class="btn-step" id="btn1">2. + er</button>
        <button class="btn-step" id="btn2">3. + est</button>
      </div>
      <button class="btn-play" id="playBtn" aria-label="Play/Pause">⏸</button>
    </div>
  </div>

  <script>
    const stepBtns = [$('#btn0'), $('#btn1'), $('#btn2')];
    const compPills = $$('.comp-pill');

    function updateState(idx) {
      stepBtns.forEach((btn, i) => {
        if (i === idx) {
          btn.classList.add('active');
        } else {
          btn.classList.remove('active');
        }
      });

      compPills.forEach((pill, i) => {
        if (i === idx) {
          pill.classList.add('highlight');
        } else {
          pill.classList.remove('highlight');
        }
      });
    }

    const player = new StepPlayer('.step', {
      interval: 3200,
      onChange: (idx) => updateState(idx)
    });

    player.start();

    stepBtns.forEach((btn, idx) => {
      onTap(btn, () => {
        player.pause();
        player.goTo(idx);
        $('#playBtn').textContent = '▶';
      });
    });

    onTap($('#playBtn'), () => {
      player.toggle();
      $('#playBtn').textContent = player.playing ? '⏸' : '▶';
    });
  </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: #ffffff;
      color: #1e2945;
      padding: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 100%;
    }

    .diagram-grid {
      width: 100%;
      max-width: 580px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .word-card {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 12px;
      padding: 14px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .top-cvc {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .letter-col {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 4px;
    }

    .badge-tag {
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      padding: 2px 6px;
      border-radius: 4px;
      letter-spacing: 0.5px;
    }

    .tag-c {
      background: #e0f2fe;
      color: #0369a1;
      border: 1px solid #bae6fd;
    }

    .tag-v {
      background: #fef3c7;
      color: #b45309;
      border: 1px solid #fde68a;
    }

    .char-box {
      width: 44px;
      height: 44px;
      background: #ffffff;
      border: 2px solid #cbd5e1;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      font-weight: 800;
      color: #0f172a;
    }

    .char-box.highlight {
      border-color: #f59e0b;
      background: #fffbeb;
      color: #b45309;
    }

    .transform-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding-top: 8px;
      border-top: 1px dashed #e2e8f0;
      font-size: 15px;
      font-weight: 700;
    }

    .equation {
      display: inline-flex;
      align-items: center;
      background: #ffffff;
      padding: 6px 10px;
      border-radius: 8px;
      border: 1px solid #e2e8f0;
      gap: 4px;
    }

    .part-base { color: #334155; }
    .part-dup {
      background: #fef08a;
      color: #854d0e;
      padding: 2px 5px;
      border-radius: 4px;
      border: 1px solid #facc15;
    }
    .part-suf { color: #2563eb; }
    .arrow { color: #94a3b8; font-weight: 900; margin: 0 2px; }
    .result {
      background: #f1f5f9;
      padding: 6px 12px;
      border-radius: 8px;
      border: 1px solid #cbd5e1;
      color: #0f172a;
    }

    .tabs {
      display: flex;
      justify-content: center;
      gap: 8px;
      margin-bottom: 4px;
    }

    .tab-btn {
      background: #f1f5f9;
      border: 1px solid #cbd5e1;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 700;
      color: #475569;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .tab-btn.active {
      background: #2563eb;
      border-color: #2563eb;
      color: #ffffff;
    }

    .tab-content {
      display: none;
    }

    .tab-content.active {
      display: flex;
    }
  </style>
</head>
<body>
  <div class="diagram-grid">
    <div class="tabs">
      <button class="tab-btn active" id="btn-big" onclick="showWord('big')">big</button>
      <button class="tab-btn" id="btn-hot" onclick="showWord('hot')">hot</button>
      <button class="tab-btn" id="btn-all" onclick="showWord('all')">Both</button>
    </div>

    
    <div class="word-card tab-content active" id="card-big">
      <div class="top-cvc">
        <div class="letter-col">
          <span class="badge-tag tag-c">C</span>
          <div class="char-box">b</div>
        </div>
        <div class="letter-col">
          <span class="badge-tag tag-v">V</span>
          <div class="char-box">i</div>
        </div>
        <div class="letter-col">
          <span class="badge-tag tag-c">C</span>
          <div class="char-box highlight">g</div>
        </div>
      </div>

      <div class="transform-row">
        <div class="equation">
          <span class="part-base">big</span> + 
          <span class="part-dup">g</span> + 
          <span class="part-suf">er</span>
          <span class="arrow">→</span>
          <span class="result">bi<span class="part-dup">gg</span>er</span>
        </div>
        <div class="equation">
          <span class="part-base">big</span> + 
          <span class="part-dup">g</span> + 
          <span class="part-suf">est</span>
          <span class="arrow">→</span>
          <span class="result">bi<span class="part-dup">gg</span>est</span>
        </div>
      </div>
    </div>

    
    <div class="word-card tab-content active" id="card-hot">
      <div class="top-cvc">
        <div class="letter-col">
          <span class="badge-tag tag-c">C</span>
          <div class="char-box">h</div>
        </div>
        <div class="letter-col">
          <span class="badge-tag tag-v">V</span>
          <div class="char-box">o</div>
        </div>
        <div class="letter-col">
          <span class="badge-tag tag-c">C</span>
          <div class="char-box highlight">t</div>
        </div>
      </div>

      <div class="transform-row">
        <div class="equation">
          <span class="part-base">hot</span> + 
          <span class="part-dup">t</span> + 
          <span class="part-suf">er</span>
          <span class="arrow">→</span>
          <span class="result">ho<span class="part-dup">tt</span>er</span>
        </div>
        <div class="equation">
          <span class="part-base">hot</span> + 
          <span class="part-dup">t</span> + 
          <span class="part-suf">est</span>
          <span class="arrow">→</span>
          <span class="result">ho<span class="part-dup">tt</span>est</span>
        </div>
      </div>
    </div>
  </div>

  <script>
    function showWord(mode) {
      const cardBig = document.getElementById('card-big');
      const cardHot = document.getElementById('card-hot');
      const btnBig = document.getElementById('btn-big');
      const btnHot = document.getElementById('btn-hot');
      const btnAll = document.getElementById('btn-all');

      btnBig.classList.remove('active');
      btnHot.classList.remove('active');
      btnAll.classList.remove('active');

      if (mode === 'big') {
        cardBig.classList.add('active');
        cardHot.classList.remove('active');
        btnBig.classList.add('active');
      } else if (mode === 'hot') {
        cardBig.classList.remove('active');
        cardHot.classList.add('active');
        btnHot.classList.add('active');
      } else {
        cardBig.classList.add('active');
        cardHot.classList.add('active');
        btnAll.classList.add('active');
      }
    }
    // Default to viewing both side-by-side/stacked
    showWord('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 {
      width: 100%;
      min-height: 100%;
      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: center;
      padding: 12px;
      gap: 12px;
    }

    .tabs {
      display: flex;
      gap: 8px;
      margin-bottom: 2px;
    }

    .tab-btn {
      padding: 6px 16px;
      font-size: 14px;
      font-weight: 700;
      border: 1px solid #cbd5e1;
      border-radius: 20px;
      background: #ffffff;
      color: #64748b;
      cursor: pointer;
      transition: all 0.2s ease;
    }

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

    .content-area {
      width: 100%;
      max-width: 580px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .rule-row {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 12px;
      padding: 10px 14px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

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

    .row-badge {
      font-size: 11px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      padding: 2px 8px;
      border-radius: 6px;
      color: #475569;
      background: #e2e8f0;
    }

    .badge-comp {
      background: #e0f2fe;
      color: #0369a1;
    }

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

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

    .word-box {
      font-size: 18px;
      font-weight: 700;
      letter-spacing: 0.5px;
      padding: 6px 10px;
      border-radius: 8px;
      background: #ffffff;
      border: 1px solid #cbd5e1;
      display: inline-flex;
      align-items: center;
      white-space: nowrap;
    }

    .arrow {
      font-size: 16px;
      color: #94a3b8;
      font-weight: 900;
    }

    .transform-box {
      display: inline-flex;
      align-items: center;
      gap: 3px;
      font-size: 18px;
      font-weight: 800;
      padding: 6px 10px;
      border-radius: 8px;
      background: #fff7ed;
      border: 1px dashed #fdba74;
    }

    .letter-y {
      color: #dc2626;
      text-decoration: line-through;
      opacity: 0.85;
    }

    .wand {
      font-size: 15px;
      color: #d97706;
      line-height: 1;
    }

    .letter-i {
      color: #ea580c;
      background: #ffedd5;
      padding: 0 4px;
      border-radius: 4px;
      font-weight: 900;
    }

    .suffix-tag {
      color: #2563eb;
      font-weight: 700;
    }

    .result-box {
      font-size: 19px;
      font-weight: 800;
      padding: 6px 12px;
      border-radius: 8px;
      background: #ffffff;
      border: 1.5px solid #0284c7;
      color: #0f172a;
      box-shadow: 0 1px 3px rgba(0,0,0,0.05);
      white-space: nowrap;
    }

    .result-box .letter-i {
      color: #ea580c;
      background: #ffedd5;
    }

    .result-box .suffix {
      color: #2563eb;
    }

    @media (max-width: 440px) {
      .word-box, .transform-box, .result-box {
        font-size: 15px;
        padding: 4px 6px;
      }
      .arrow {
        font-size: 13px;
      }
      .rule-row {
        padding: 8px 10px;
      }
    }
  </style>
</head>
<body>

  <div class="tabs">
    <button id="btnHappy" class="tab-btn active" onclick="setWord('happy')">happy</button>
    <button id="btnFunny" class="tab-btn" onclick="setWord('funny')">funny</button>
  </div>

  <div class="content-area">
    
    <div class="rule-row">
      <div class="row-header">
        <span class="row-badge badge-comp">Comparative (+er)</span>
      </div>
      <div class="equation">
        <div class="word-box">
          <span id="root1">happ</span><span class="letter-y">y</span>
        </div>

        <span class="arrow">➔</span>

        <div class="transform-box">
          <span class="letter-y">y</span>
          <span class="wand">🪄</span>
          <span class="letter-i">i</span>
          <span class="suffix-tag">+ er</span>
        </div>

        <span class="arrow">➔</span>

        <div class="result-box">
          <span id="resRoot1">happ</span><span class="letter-i">i</span><span class="suffix">er</span>
        </div>
      </div>
    </div>

    
    <div class="rule-row">
      <div class="row-header">
        <span class="row-badge badge-sup">Superlative (+est)</span>
      </div>
      <div class="equation">
        <div class="word-box">
          <span id="root2">happ</span><span class="letter-y">y</span>
        </div>

        <span class="arrow">➔</span>

        <div class="transform-box">
          <span class="letter-y">y</span>
          <span class="wand">🪄</span>
          <span class="letter-i">i</span>
          <span class="suffix-tag">+ est</span>
        </div>

        <span class="arrow">➔</span>

        <div class="result-box">
          <span id="resRoot2">happ</span><span class="letter-i">i</span><span class="suffix">est</span>
        </div>
      </div>
    </div>
  </div>

  <script>
    function setWord(word) {
      const root = word === 'happy' ? 'happ' : 'funn';
      
      document.getElementById('root1').textContent = root;
      document.getElementById('root2').textContent = root;
      document.getElementById('resRoot1').textContent = root;
      document.getElementById('resRoot2').textContent = root;

      document.getElementById('btnHappy').classList.toggle('active', word === 'happy');
      document.getElementById('btnFunny').classList.toggle('active', word === 'funny');
    }
  </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">
  <script src="{{VENDOR_CDN}}/classace-diagram.js"></script>
  <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: center;
      min-height: 100%;
      padding: 12px;
    }

    .cards-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      width: 100%;
      max-width: 580px;
    }

    .race-card {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: space-between;
      padding: 14px 8px;
      border-radius: 16px;
      border: 2px solid #bae6fd;
      cursor: pointer;
      user-select: none;
      transition: box-shadow 0.2s ease, border-color 0.2s ease;
      min-height: 190px;
      text-align: center;
    }

    .card-1 {
      background: #f0f9ff;
      border-color: #e0f2fe;
    }
    .card-2 {
      background: #e0f2fe;
      border-color: #bae6fd;
    }
    .card-3 {
      background: #bae6fd;
      border-color: #7dd3fc;
    }

    .race-card.active {
      box-shadow: 0 0 0 3px #0284c7;
      border-color: #0284c7;
    }

    .icon-wrap {
      font-size: 40px;
      line-height: 1;
      margin-top: 4px;
      margin-bottom: 8px;
      filter: drop-shadow(0 2px 4px rgba(0,0,0,0.06));
    }

    .word {
      font-size: 20px;
      font-weight: 800;
      color: #0f172a;
      letter-spacing: -0.5px;
      margin-bottom: 6px;
    }

    .suffix {
      color: #0284c7;
      background: rgba(255, 255, 255, 0.7);
      padding: 1px 4px;
      border-radius: 6px;
    }

    .badge {
      font-size: 13px;
      font-weight: 700;
      padding: 4px 8px;
      border-radius: 999px;
      background: #ffffff;
      color: #0369a1;
      border: 1px solid rgba(2, 132, 199, 0.2);
      white-space: nowrap;
    }

    .speed-track {
      width: 100%;
      max-width: 580px;
      margin-top: 14px;
      background: #f1f5f9;
      border-radius: 12px;
      padding: 10px 14px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border: 1px solid #e2e8f0;
    }

    .speed-label {
      font-size: 13px;
      font-weight: 700;
      color: #64748b;
    }

    .speed-bar {
      flex: 1;
      height: 8px;
      background: #e2e8f0;
      border-radius: 4px;
      margin: 0 12px;
      overflow: hidden;
    }

    .speed-fill {
      height: 100%;
      width: 100%;
      background: linear-gradient(90deg, #38bdf8, #0284c7, #0369a1);
      border-radius: 4px;
    }

    .speed-arrow {
      font-size: 14px;
      font-weight: 800;
      color: #0284c7;
    }

    @media (max-width: 400px) {
      .icon-wrap { font-size: 32px; }
      .word { font-size: 17px; }
      .badge { font-size: 11px; padding: 3px 6px; }
      .race-card { min-height: 165px; padding: 10px 4px; }
    }
  </style>
</head>
<body>

  <div class="cards-row">
    
    <div class="race-card card-1 active" id="card1" onclick="selectCard(1)">
      <div class="icon-wrap">🐆</div>
      <div class="word">fast</div>
      <div class="badge">Base</div>
    </div>

    
    <div class="race-card card-2" id="card2" onclick="selectCard(2)">
      <div class="icon-wrap">🏎️</div>
      <div class="word">fast<span class="suffix">-er</span></div>
      <div class="badge">Compares 2 ↔️</div>
    </div>

    
    <div class="race-card card-3" id="card3" onclick="selectCard(3)">
      <div class="icon-wrap">🚀</div>
      <div class="word">fast<span class="suffix">-est</span></div>
      <div class="badge">Most of all ⭐</div>
    </div>
  </div>

  <div class="speed-track">
    <span class="speed-label">Speed</span>
    <div class="speed-bar">
      <div class="speed-fill" id="meterFill"></div>
    </div>
    <span class="speed-arrow">→ +</span>
  </div>

  <script>
    function selectCard(num) {
      document.querySelectorAll('.race-card').forEach((card, idx) => {
        card.classList.toggle('active', idx + 1 === num);
      });
      const fill = document.getElementById('meterFill');
      if (num === 1) fill.style.width = '33%';
      else if (num === 2) fill.style.width = '66%';
      else fill.style.width = '100%';
    }
  </script>
</body>
</html>

OGE.4.L.3

Aligned learning resources

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