<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      background: transparent;
      color: #1e2945;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: space-between;
      min-height: 100%;
      padding: 12px;
      user-select: none;
    }

    .scene {
      position: relative;
      width: 100%;
      max-width: 580px;
      height: 250px;
      background: linear-gradient(180deg, #dbeafe 0%, #bfdbfe 50%, #93c5fd 100%);
      border-radius: 20px;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: space-around;
      padding: 0 16px;
    }

    /* Gentle water ripples */
    .ripple {
      position: absolute;
      border-radius: 50%;
      border: 2px solid rgba(255, 255, 255, 0.45);
      pointer-events: none;
    }
    .r1 { width: 90px; height: 26px; top: 22%; left: 8%; }
    .r2 { width: 120px; height: 32px; bottom: 18%; left: 42%; }
    .r3 { width: 80px; height: 24px; top: 28%; right: 10%; }

    /* Stepping stones */
    .stones-container {
      position: relative;
      width: 100%;
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      z-index: 2;
    }

    .stone-slot {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      position: relative;
      padding: 8px 4px;
    }

    .stone {
      width: 100px;
      height: 100px;
      border-radius: 50% 50% 45% 45%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      position: relative;
      transition: transform 0.3s ease, box-shadow 0.3s ease, filter 0.3s ease;
      box-shadow: 0 8px 0 rgba(0, 0, 0, 0.12), 0 12px 16px rgba(0, 0, 0, 0.08);
      border: 3px solid rgba(255, 255, 255, 0.8);
    }

    .stone-slot.active .stone {
      transform: translateY(-4px);
      box-shadow: 0 12px 0 rgba(0, 0, 0, 0.14), 0 0 0 4px #22b7ff;
    }

    .stone-1 { background: #fef08a; } /* Bright Yellow */
    .stone-2 { background: #5eead4; } /* Bright Teal */
    .stone-3 { background: #fda4af; } /* Bright Coral */

    .badge {
      position: absolute;
      top: -8px;
      background: #ffffff;
      color: #1e2945;
      font-size: 13px;
      font-weight: 800;
      padding: 2px 8px;
      border-radius: 12px;
      box-shadow: 0 2px 4px rgba(0,0,0,0.1);
      display: flex;
      align-items: center;
      gap: 3px;
      border: 1px solid #e2e8f0;
    }

    .word {
      font-size: 14px;
      font-weight: 800;
      color: #1e2945;
      text-align: center;
      line-height: 1.2;
    }

    .stage-tag {
      margin-top: 8px;
      font-size: 12px;
      font-weight: 700;
      color: #334155;
      background: rgba(255, 255, 255, 0.85);
      padding: 3px 10px;
      border-radius: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .stone-slot.active .stage-tag {
      background: #1e2945;
      color: #ffffff;
    }

    /* Frog character */
    .frog-actor {
      position: absolute;
      top: 26px;
      left: 0;
      width: 33.333%;
      display: flex;
      justify-content: center;
      font-size: 42px;
      z-index: 10;
      pointer-events: none;
      transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
    }

    .frog-actor.hopping {
      animation: jumpArc 0.45s ease-in-out;
    }

    @keyframes jumpArc {
      0% { transform: translateY(0); }
      50% { transform: translateY(-38px) scale(1.15); }
      100% { transform: translateY(0) scale(1); }
    }

    /* Controls bar */
    .controls {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      margin-top: 14px;
      flex-wrap: wrap;
      width: 100%;
      max-width: 580px;
    }

    .btn {
      background: #ffffff;
      border: 2px solid #cbd5e1;
      border-radius: 12px;
      padding: 8px 16px;
      font-size: 14px;
      font-weight: 700;
      color: #1e2945;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 6px;
      transition: background 0.2s, border-color 0.2s;
    }

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

    .btn-step.active {
      background: #22b7ff;
      border-color: #0284c7;
      color: #ffffff;
    }

    .btn-play {
      background: #1e2945;
      color: #ffffff;
      border-color: #1e2945;
    }
    .btn-play:hover {
      background: #0f172a;
    }

    @media (max-width: 420px) {
      .stone { width: 84px; height: 84px; }
      .word { font-size: 12px; }
      .frog-actor { font-size: 34px; top: 32px; }
      .btn { padding: 6px 10px; font-size: 13px; }
    }
  </style>
</head>
<body>

  <div class="scene">
    <div class="ripple r1"></div>
    <div class="ripple r2"></div>
    <div class="ripple r3"></div>

    <div class="frog-actor" id="frog">🐸</div>

    <div class="stones-container">
      <div class="stone-slot active" id="slot-0" onclick="goToStep(0)">
        <div class="stone stone-1">
          <span class="badge">1</span>
          <span class="word">First</span>
        </div>
        <span class="stage-tag">Beginning</span>
      </div>

      <div class="stone-slot" id="slot-1" onclick="goToStep(1)">
        <div class="stone stone-2">
          <span class="badge">2</span>
          <span class="word">Next /<br>Then</span>
        </div>
        <span class="stage-tag">Middle</span>
      </div>

      <div class="stone-slot" id="slot-2" onclick="goToStep(2)">
        <div class="stone stone-3">
          <span class="badge">3 🏁</span>
          <span class="word">Finally /<br>At last</span>
        </div>
        <span class="stage-tag">End</span>
      </div>
    </div>
  </div>

  <div class="controls">
    <button class="btn btn-step active" id="btn-0" onclick="goToStep(0)">1. First</button>
    <button class="btn btn-step" id="btn-1" onclick="goToStep(1)">2. Next</button>
    <button class="btn btn-step" id="btn-2" onclick="goToStep(2)">3. Finally</button>
    <button class="btn btn-play" id="playBtn" onclick="togglePlay()">⏸ Pause</button>
  </div>

  <script>
    let currentStep = 0;
    let isPlaying = true;
    let timer = null;

    const frog = document.getElementById('frog');
    const slots = [document.getElementById('slot-0'), document.getElementById('slot-1'), document.getElementById('slot-2')];
    const stepBtns = [document.getElementById('btn-0'), document.getElementById('btn-1'), document.getElementById('btn-2')];
    const playBtn = document.getElementById('playBtn');

    function renderStep(index) {
      currentStep = index;

      // Update stones & buttons
      slots.forEach((slot, i) => slot.classList.toggle('active', i === index));
      stepBtns.forEach((btn, i) => btn.classList.toggle('active', i === index));

      // Move frog
      frog.style.transform = `translateX(${index * 100}%)`;
      
      // Hop animation bounce
      frog.classList.remove('hopping');
      void frog.offsetWidth; // trigger reflow
      frog.classList.add('hopping');
    }

    function goToStep(index) {
      renderStep(index);
      if (isPlaying) {
        resetTimer();
      }
    }

    function nextStep() {
      const next = (currentStep + 1) % 3;
      renderStep(next);
    }

    function resetTimer() {
      clearInterval(timer);
      if (isPlaying) {
        timer = setInterval(nextStep, 3000);
      }
    }

    function togglePlay() {
      isPlaying = !isPlaying;
      playBtn.textContent = isPlaying ? '⏸ Pause' : '▶ Play';
      if (isPlaying) {
        nextStep();
        resetTimer();
      } else {
        clearInterval(timer);
      }
    }

    // Initialize auto-play
    resetTimer();
  </script>
</body>
</html>

Retelling Story Events in Order: Beginning, Middle, End

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      background: transparent;
      color: #1e2945;
      padding: 8px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 100%;
    }

    .comic-strip {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      width: 100%;
      max-width: 640px;
    }

    .panel {
      background: #ffffff;
      border: 2px solid #cbd5e1;
      border-radius: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 10px 6px 12px;
      position: relative;
      cursor: pointer;
      user-select: none;
      transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
      min-height: 220px;
    }

    .panel.active {
      border-color: #0284c7;
      box-shadow: 0 4px 14px rgba(2, 132, 199, 0.2);
    }

    .banner {
      font-size: 15px;
      font-weight: 800;
      letter-spacing: 0.5px;
      text-transform: uppercase;
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 6px;
      transition: background 0.2s, color 0.2s;
    }

    .panel:nth-child(1) .banner {
      background: #e0f2fe;
      color: #0369a1;
    }

    .panel:nth-child(2) .banner {
      background: #fef3c7;
      color: #b45309;
    }

    .panel:nth-child(3) .banner {
      background: #dcfce7;
      color: #15803d;
    }

    .panel.active:nth-child(1) .banner {
      background: #0284c7;
      color: #ffffff;
    }

    .panel.active:nth-child(2) .banner {
      background: #d97706;
      color: #ffffff;
    }

    .panel.active:nth-child(3) .banner {
      background: #16a34a;
      color: #ffffff;
    }

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

    .scene-svg {
      width: 100%;
      max-width: 140px;
      height: 140px;
      flex-grow: 1;
    }

    .controls {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      margin-top: 10px;
      width: 100%;
    }

    .step-btn {
      background: #f1f5f9;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      padding: 6px 14px;
      font-size: 13px;
      font-weight: 600;
      color: #334155;
      cursor: pointer;
      transition: background 0.2s, border-color 0.2s;
    }

    .step-btn:hover {
      background: #e2e8f0;
      border-color: #94a3b8;
    }

    .play-btn {
      background: #0284c7;
      border: 1px solid #0284c7;
      border-radius: 8px;
      padding: 6px 14px;
      font-size: 13px;
      font-weight: 600;
      color: #ffffff;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .play-btn:hover {
      background: #0369a1;
    }

    @media (max-width: 480px) {
      .comic-strip {
        gap: 6px;
      }
      .panel {
        padding: 8px 4px 10px;
        min-height: 200px;
      }
      .banner {
        font-size: 12px;
        padding: 3px 8px;
      }
      .stage-tag {
        font-size: 10px;
        margin-bottom: 4px;
      }
      .scene-svg {
        height: 125px;
      }
    }
  </style>
</head>
<body>

  <div class="comic-strip">
    
    <div class="panel active" data-step="0">
      <div class="banner">First</div>
      <div class="stage-tag">Beginning</div>
      <svg class="scene-svg" viewBox="0 0 140 140">
        
        <line x1="10" y1="128" x2="130" y2="128" stroke="#cbd5e1" stroke-width="2" stroke-linecap="round"/>

        
        <path d="M 68 50 L 92 50 L 98 62 L 104 124 Q 104 126 100 126 L 60 126 Q 56 126 56 124 L 62 62 Z" fill="#f8fafc" stroke="#94a3b8" stroke-width="2.5" stroke-linejoin="round"/>
        <ellipse cx="80" cy="50" rx="12" ry="3" fill="#e2e8f0" stroke="#94a3b8" stroke-width="1.5"/>

        
        <path d="M 58 114 Q 80 112 102 114 L 104 124 Q 104 126 100 126 L 60 126 Q 56 126 56 124 Z" fill="#38bdf8" opacity="0.85"/>
        <line x1="58" y1="114" x2="102" y2="114" stroke="#0284c7" stroke-width="1.5" stroke-dasharray="2,2"/>

        
        <g transform="translate(18, 52)">
          
          <ellipse cx="22" cy="38" rx="14" ry="18" fill="#1e293b"/>
          
          <path d="M 12 30 Q 6 42 16 52 Q 22 46 20 32 Z" fill="#0f172a"/>
          
          <circle cx="28" cy="18" r="10" fill="#1e293b"/>
          
          <circle cx="31" cy="16" r="2.5" fill="#ffffff"/>
          <circle cx="32" cy="17" r="1.2" fill="#0f172a"/>
          
          <polygon points="36,18 48,26 34,24" fill="#f59e0b"/>
          
          <line x1="18" y1="54" x2="18" y2="76" stroke="#475569" stroke-width="2"/>
          <line x1="26" y1="54" x2="26" y2="76" stroke="#475569" stroke-width="2"/>
          
          <path d="M 38 12 Q 40 18 36 18 Q 34 18 34 16 Z" fill="#38bdf8"/>
        </g>
      </svg>
    </div>

    
    <div class="panel" data-step="1">
      <div class="banner">Next</div>
      <div class="stage-tag">Middle</div>
      <svg class="scene-svg" viewBox="0 0 140 140">
        
        <line x1="10" y1="128" x2="130" y2="128" stroke="#cbd5e1" stroke-width="2" stroke-linecap="round"/>

        
        <path d="M 68 50 L 92 50 L 98 62 L 104 124 Q 104 126 100 126 L 60 126 Q 56 126 56 124 L 62 62 Z" fill="#f8fafc" stroke="#94a3b8" stroke-width="2.5" stroke-linejoin="round"/>
        <ellipse cx="80" cy="50" rx="12" ry="3" fill="#e2e8f0" stroke="#94a3b8" stroke-width="1.5"/>

        
        <path d="M 60 88 Q 80 86 100 88 L 104 124 Q 104 126 100 126 L 60 126 Q 56 126 56 124 Z" fill="#38bdf8" opacity="0.85"/>
        <line x1="60" y1="88" x2="100" y2="88" stroke="#0284c7" stroke-width="1.5" stroke-dasharray="2,2"/>

        
        <ellipse cx="68" cy="120" rx="5" ry="3.5" fill="#64748b"/>
        <ellipse cx="80" cy="122" rx="6" ry="4" fill="#475569"/>
        <ellipse cx="92" cy="120" rx="5" ry="3.5" fill="#64748b"/>
        <ellipse cx="74" cy="114" rx="5.5" ry="3.5" fill="#94a3b8"/>
        <ellipse cx="86" cy="115" rx="5" ry="3" fill="#64748b"/>

        
        <g>
          <ellipse cx="80" cy="68" rx="4" ry="3" fill="#64748b"/>
          <line x1="80" y1="58" x2="80" y2="63" stroke="#94a3b8" stroke-width="1.5" stroke-dasharray="1.5,1.5"/>
        </g>

        
        <g transform="translate(24, 20)">
          
          <ellipse cx="26" cy="30" rx="14" ry="16" fill="#1e293b"/>
          
          <path d="M 16 22 Q 8 32 18 42 Q 26 38 24 24 Z" fill="#0f172a"/>
          
          <circle cx="36" cy="16" r="10" fill="#1e293b"/>
          
          <circle cx="39" cy="14" r="2.5" fill="#ffffff"/>
          <circle cx="40" cy="14" r="1.2" fill="#0f172a"/>
          
          <polygon points="44,14 56,16 46,18" fill="#f59e0b"/>
          <polygon points="44,19 54,23 44,22" fill="#d97706"/>
          
          <ellipse cx="53" cy="28" rx="3.5" ry="2.5" fill="#64748b"/>
        </g>
      </svg>
    </div>

    
    <div class="panel" data-step="2">
      <div class="banner">Finally</div>
      <div class="stage-tag">End</div>
      <svg class="scene-svg" viewBox="0 0 140 140">
        
        <line x1="10" y1="128" x2="130" y2="128" stroke="#cbd5e1" stroke-width="2" stroke-linecap="round"/>

        
        <path d="M 68 50 L 92 50 L 98 62 L 104 124 Q 104 126 100 126 L 60 126 Q 56 126 56 124 L 62 62 Z" fill="#f8fafc" stroke="#94a3b8" stroke-width="2.5" stroke-linejoin="round"/>
        <ellipse cx="80" cy="50" rx="12" ry="3" fill="#e2e8f0" stroke="#94a3b8" stroke-width="1.5"/>

        
        <path d="M 68 52 Q 80 50 92 52 L 104 124 Q 104 126 100 126 L 60 126 Q 56 126 56 124 Z" fill="#38bdf8" opacity="0.85"/>
        <ellipse cx="80" cy="52" rx="11" ry="2.5" fill="#0284c7"/>

        
        <ellipse cx="68" cy="120" rx="5" ry="3.5" fill="#64748b"/>
        <ellipse cx="80" cy="122" rx="6" ry="4" fill="#475569"/>
        <ellipse cx="92" cy="120" rx="5" ry="3.5" fill="#64748b"/>
        <ellipse cx="74" cy="112" rx="5.5" ry="3.5" fill="#94a3b8"/>
        <ellipse cx="86" cy="113" rx="5" ry="3" fill="#64748b"/>
        <ellipse cx="80" cy="104" rx="6" ry="3.5" fill="#475569"/>
        <ellipse cx="70" cy="98" rx="5" ry="3.5" fill="#64748b"/>
        <ellipse cx="88" cy="99" rx="5" ry="3.5" fill="#94a3b8"/>
        <ellipse cx="79" cy="90" rx="5.5" ry="3.5" fill="#475569"/>

        
        <path d="M 36 24 C 36 18, 44 18, 44 24 C 44 18, 52 18, 52 24 C 52 30, 44 35, 44 38 C 44 35, 36 30, 36 24 Z" fill="#ef4444" transform="scale(0.65) translate(8, 0)"/>

        
        <g transform="translate(18, 42)">
          
          <ellipse cx="24" cy="38" rx="14" ry="18" fill="#1e293b"/>
          
          <path d="M 14 30 Q 8 42 18 52 Q 24 46 22 32 Z" fill="#0f172a"/>
          
          <circle cx="38" cy="18" r="10" fill="#1e293b"/>
          
          <path d="M 38 16 Q 41 13 44 16" stroke="#ffffff" stroke-width="1.8" stroke-linecap="round" fill="none"/>
          
          <polygon points="46,18 60,13 46,12" fill="#f59e0b"/>
          
          <circle cx="60" cy="12" r="2" fill="none" stroke="#ffffff" stroke-width="1"/>
          
          <line x1="20" y1="54" x2="20" y2="86" stroke="#475569" stroke-width="2"/>
          <line x1="28" y1="54" x2="28" y2="86" stroke="#475569" stroke-width="2"/>
        </g>
      </svg>
    </div>
  </div>

  <div class="controls">
    <button class="step-btn" id="prevBtn">◀ Back</button>
    <button class="play-btn" id="playBtn"><span id="playIcon">⏸</span> Auto</button>
    <button class="step-btn" id="nextBtn">Next ▶</button>
  </div>

  <script>
    const panels = document.querySelectorAll('.panel');
    const prevBtn = document.getElementById('prevBtn');
    const nextBtn = document.getElementById('nextBtn');
    const playBtn = document.getElementById('playBtn');
    const playIcon = document.getElementById('playIcon');

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

    function setStep(idx) {
      currentStep = (idx + panels.length) % panels.length;
      panels.forEach((p, i) => {
        p.classList.toggle('active', i === currentStep);
      });
    }

    function startAuto() {
      if (timer) clearInterval(timer);
      timer = setInterval(() => {
        setStep(currentStep + 1);
      }, 3200);
      isPlaying = true;
      playIcon.textContent = '⏸';
    }

    function stopAuto() {
      if (timer) clearInterval(timer);
      isPlaying = false;
      playIcon.textContent = '▶';
    }

    panels.forEach((panel, i) => {
      panel.addEventListener('click', () => {
        setStep(i);
        stopAuto();
      });
    });

    prevBtn.addEventListener('click', () => {
      setStep(currentStep - 1);
      stopAuto();
    });

    nextBtn.addEventListener('click', () => {
      setStep(currentStep + 1);
      stopAuto();
    });

    playBtn.addEventListener('click', () => {
      if (isPlaying) {
        stopAuto();
      } else {
        startAuto();
      }
    });

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

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <title>Story Order Train</title>
  <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: #1e2945;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: space-between;
      min-height: 100%;
      padding: 12px 10px 16px;
      user-select: none;
      -webkit-user-select: none;
    }

    .header-tag {
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.5px;
      text-transform: uppercase;
      color: #64748b;
      margin-bottom: 2px;
    }

    .svg-container {
      width: 100%;
      max-width: 620px;
      display: flex;
      justify-content: center;
      align-items: center;
      margin: auto 0;
    }

    svg {
      width: 100%;
      height: auto;
      overflow: visible;
    }

    /* Car groups interactive styling */
    .train-car {
      cursor: pointer;
      transition: transform 0.3s ease, filter 0.3s ease;
      transform-origin: center bottom;
    }
    .train-car:hover {
      filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.18));
    }
    .train-car.active {
      filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.25));
    }
    .train-car.active .car-body {
      stroke-width: 4px;
      stroke: #0f172a;
    }
    .train-car.active .highlight-ring {
      opacity: 1;
    }

    .highlight-ring {
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    /* Animated Steam */
    @keyframes floatSteam {
      0% { opacity: 0.8; transform: translate(0, 0) scale(0.9); }
      50% { opacity: 0.5; transform: translate(-6px, -10px) scale(1.1); }
      100% { opacity: 0.8; transform: translate(0, 0) scale(0.9); }
    }
    .steam-puff {
      animation: floatSteam 3s ease-in-out infinite;
      transform-origin: 88px 80px;
    }

    /* Animated flow arrow pulses */
    @keyframes arrowPulse {
      0%, 100% { stroke-dashoffset: 0; }
      50% { stroke-dashoffset: -12; }
    }
    .flow-path {
      stroke-dasharray: 6 6;
      animation: arrowPulse 2s linear infinite;
    }

    /* Control buttons */
    .controls {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
      align-items: center;
      width: 100%;
      max-width: 500px;
      margin-top: 4px;
    }

    .step-btn {
      flex: 1 1 95px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 8px 12px;
      font-size: 14px;
      font-weight: 700;
      border-radius: 9999px;
      border: 2px solid transparent;
      background: #ffffff;
      color: #475569;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
      cursor: pointer;
      transition: all 0.2s ease;
      min-height: 40px;
    }
    .step-btn:hover {
      background: #f1f5f9;
    }
    .step-btn.active[data-step="0"] {
      background: #eff6ff;
      color: #1d4ed8;
      border-color: #2563eb;
      box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
    }
    .step-btn.active[data-step="1"] {
      background: #fff7ed;
      color: #c2410c;
      border-color: #ea580c;
      box-shadow: 0 2px 8px rgba(234, 88, 12, 0.25);
    }
    .step-btn.active[data-step="2"] {
      background: #f0fdf4;
      color: #15803d;
      border-color: #16a34a;
      box-shadow: 0 2px 8px rgba(22, 163, 74, 0.25);
    }

    .play-btn {
      flex: 0 0 40px;
      width: 40px;
      height: 40px;
      min-height: 40px;
      padding: 0;
      border-radius: 50%;
      border: 1px solid #cbd5e1;
      background: #ffffff;
      color: #334155;
      font-size: 15px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    }
    .play-btn:hover {
      background: #f8fafc;
    }
  </style>
</head>
<body>

  <div class="header-tag">Story Order Flow</div>

  <div class="svg-container">
    <svg viewBox="0 0 620 270" role="img" aria-label="Story Order Train: Beginning, Middle, End">
      <defs>
        
        <marker id="arrow" viewBox="0 0 10 10" refX="6" refY="5" markerWidth="6" markerHeight="6" orient="auto-start-reverse">
          <path d="M 0 1 L 10 5 L 0 9 z" fill="#475569" />
        </marker>
        <marker id="arrow-blue" viewBox="0 0 10 10" refX="6" refY="5" markerWidth="6" markerHeight="6" orient="auto-start-reverse">
          <path d="M 0 1 L 10 5 L 0 9 z" fill="#2563eb" />
        </marker>
        <marker id="arrow-orange" viewBox="0 0 10 10" refX="6" refY="5" markerWidth="6" markerHeight="6" orient="auto-start-reverse">
          <path d="M 0 1 L 10 5 L 0 9 z" fill="#ea580c" />
        </marker>

        
        <linearGradient id="trackGrad" x1="0" y1="0" x2="0" y2="1">
          <stop offset="0%" stop-color="#64748b" />
          <stop offset="100%" stop-color="#334155" />
        </linearGradient>
      </defs>

      
      <g id="tracks">
        
        <path d="M 10 242 L 610 242" stroke="#e2e8f0" stroke-width="12" stroke-linecap="round" />
        
        <g stroke="#94a3b8" stroke-width="5" stroke-linecap="round">
          <line x1="30" y1="230" x2="30" y2="246" />
          <line x1="65" y1="230" x2="65" y2="246" />
          <line x1="100" y1="230" x2="100" y2="246" />
          <line x1="135" y1="230" x2="135" y2="246" />
          <line x1="170" y1="230" x2="170" y2="246" />
          <line x1="205" y1="230" x2="205" y2="246" />
          <line x1="240" y1="230" x2="240" y2="246" />
          <line x1="275" y1="230" x2="275" y2="246" />
          <line x1="310" y1="230" x2="310" y2="246" />
          <line x1="345" y1="230" x2="345" y2="246" />
          <line x1="380" y1="230" x2="380" y2="246" />
          <line x1="415" y1="230" x2="415" y2="246" />
          <line x1="450" y1="230" x2="450" y2="246" />
          <line x1="485" y1="230" x2="485" y2="246" />
          <line x1="520" y1="230" x2="520" y2="246" />
          <line x1="555" y1="230" x2="555" y2="246" />
          <line x1="590" y1="230" x2="590" y2="246" />
        </g>
        
        <line x1="15" y1="232" x2="605" y2="232" stroke="url(#trackGrad)" stroke-width="4" stroke-linecap="round" />
        <line x1="15" y1="240" x2="605" y2="240" stroke="#475569" stroke-width="2.5" stroke-linecap="round" />
      </g>

      
      <g stroke="#64748b" stroke-width="5" stroke-linecap="round">
        <line x1="188" y1="200" x2="225" y2="200" />
        <circle cx="206" cy="200" r="4" fill="#334155" />
        <line x1="388" y1="200" x2="425" y2="200" />
        <circle cx="406" cy="200" r="4" fill="#334155" />
      </g>

      
      <g>
        
        <path class="flow-path" d="M 160 70 Q 206 42 250 68" fill="none" stroke="#2563eb" stroke-width="3" stroke-linecap="round" marker-end="url(#arrow-blue)" />
        
        <path class="flow-path" d="M 360 70 Q 406 42 450 68" fill="none" stroke="#ea580c" stroke-width="3" stroke-linecap="round" marker-end="url(#arrow-orange)" />
      </g>

      
      <g class="train-car active" id="car-0" data-step="0" tabindex="0" role="button" aria-label="Step 1: Beginning">
        
        <rect class="highlight-ring" x="24" y="90" width="168" height="142" rx="18" fill="none" stroke="#93c5fd" stroke-width="6" />

        
        <g class="steam-puff">
          <circle cx="78" cy="62" r="9" fill="#e2e8f0" />
          <circle cx="68" cy="50" r="12" fill="#cbd5e1" />
          <circle cx="84" cy="44" r="14" fill="#e2e8f0" opacity="0.9" />
        </g>

        
        <path d="M 68 115 L 88 115 L 84 92 L 72 92 Z" fill="#1e293b" />
        <ellipse cx="78" cy="92" rx="9" ry="3" fill="#334155" />

        
        <polygon points="28,225 35,195 42,225" fill="#475569" />

        
        <rect class="car-body" x="32" y="112" width="154" height="98" rx="14" fill="#2563eb" stroke="#1d4ed8" stroke-width="2" />
        
        <rect x="110" y="122" width="64" height="42" rx="8" fill="#dbeafe" stroke="#93c5fd" stroke-width="2" />

        
        <text x="142" y="152" font-size="22" text-anchor="middle" dominant-baseline="middle">👤 🏠</text>

        
        <rect x="42" y="174" width="134" height="26" rx="6" fill="#1d4ed8" />
        <text x="109" y="191" font-size="14" font-weight="800" fill="#ffffff" text-anchor="middle">Beginning</text>

        
        <circle cx="68" cy="220" r="15" fill="#334155" stroke="#94a3b8" stroke-width="3" />
        <circle cx="68" cy="220" r="5" fill="#e2e8f0" />
        <circle cx="150" cy="220" r="15" fill="#334155" stroke="#94a3b8" stroke-width="3" />
        <circle cx="150" cy="220" r="5" fill="#e2e8f0" />
      </g>

      
      <g class="train-car" id="car-1" data-step="1" tabindex="0" role="button" aria-label="Step 2: Middle">
        
        <rect class="highlight-ring" x="224" y="90" width="168" height="142" rx="18" fill="none" stroke="#fdba74" stroke-width="6" />

        
        <rect x="240" y="108" width="136" height="6" rx="3" fill="#9a3412" />

        
        <rect class="car-body" x="232" y="112" width="154" height="98" rx="14" fill="#ea580c" stroke="#c2410c" stroke-width="2" />
        
        <rect x="277" y="122" width="64" height="42" rx="8" fill="#ffedd5" stroke="#fed7aa" stroke-width="2" />

        
        <text x="309" y="152" font-size="22" text-anchor="middle" dominant-baseline="middle">⭐ 📦</text>

        
        <rect x="242" y="174" width="134" height="26" rx="6" fill="#c2410c" />
        <text x="309" y="191" font-size="14" font-weight="800" fill="#ffffff" text-anchor="middle">Middle</text>

        
        <circle cx="268" cy="220" r="15" fill="#334155" stroke="#94a3b8" stroke-width="3" />
        <circle cx="268" cy="220" r="5" fill="#e2e8f0" />
        <circle cx="350" cy="220" r="15" fill="#334155" stroke="#94a3b8" stroke-width="3" />
        <circle cx="350" cy="220" r="5" fill="#e2e8f0" />
      </g>

      
      <g class="train-car" id="car-2" data-step="2" tabindex="0" role="button" aria-label="Step 3: End">
        
        <rect class="highlight-ring" x="424" y="90" width="168" height="142" rx="18" fill="none" stroke="#86efac" stroke-width="6" />

        
        <rect x="477" y="94" width="48" height="20" rx="4" fill="#15803d" />
        <rect x="485" y="100" width="32" height="10" rx="2" fill="#bbf7d0" />

        
        <rect class="car-body" x="432" y="112" width="154" height="98" rx="14" fill="#16a34a" stroke="#15803d" stroke-width="2" />
        
        <rect x="477" y="122" width="64" height="42" rx="8" fill="#dcfce7" stroke="#bbf7d0" stroke-width="2" />

        
        <text x="509" y="152" font-size="22" text-anchor="middle" dominant-baseline="middle">✓ 😊</text>

        
        <rect x="442" y="174" width="134" height="26" rx="6" fill="#15803d" />
        <text x="509" y="191" font-size="14" font-weight="800" fill="#ffffff" text-anchor="middle">End</text>

        
        <circle cx="468" cy="220" r="15" fill="#334155" stroke="#94a3b8" stroke-width="3" />
        <circle cx="468" cy="220" r="5" fill="#e2e8f0" />
        <circle cx="550" cy="220" r="15" fill="#334155" stroke="#94a3b8" stroke-width="3" />
        <circle cx="550" cy="220" r="5" fill="#e2e8f0" />
      </g>
    </svg>
  </div>

  
  <div class="controls" role="tablist" aria-label="Train cars">
    <button class="step-btn active" data-step="0" role="tab" aria-selected="true">
      <span>1.</span> Beginning
    </button>
    <button class="step-btn" data-step="1" role="tab" aria-selected="false">
      <span>2.</span> Middle
    </button>
    <button class="step-btn" data-step="2" role="tab" aria-selected="false">
      <span>3.</span> End
    </button>
    <button class="play-btn" id="playBtn" aria-label="Pause animation" title="Auto-cycle steps">
      ⏸
    </button>
  </div>

  <script>
    const cars = [
      document.getElementById('car-0'),
      document.getElementById('car-1'),
      document.getElementById('car-2')
    ];
    const buttons = document.querySelectorAll('.step-btn');
    const playBtn = document.getElementById('playBtn');

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

    function setStep(idx) {
      currentStep = idx;
      cars.forEach((car, i) => {
        const isActive = i === idx;
        car.classList.toggle('active', isActive);
      });
      buttons.forEach((btn, i) => {
        const isActive = i === idx;
        btn.classList.toggle('active', isActive);
        btn.setAttribute('aria-selected', isActive ? 'true' : 'false');
      });
    }

    function nextStep() {
      setStep((currentStep + 1) % 3);
    }

    function startAuto() {
      stopAuto();
      isPlaying = true;
      playBtn.textContent = '⏸';
      playBtn.setAttribute('aria-label', 'Pause auto-cycle');
      timer = setInterval(nextStep, 3200);
    }

    function stopAuto() {
      isPlaying = false;
      playBtn.textContent = '▶';
      playBtn.setAttribute('aria-label', 'Play auto-cycle');
      if (timer) {
        clearInterval(timer);
        timer = null;
      }
    }

    // Attach click listeners to train cars
    cars.forEach((car, i) => {
      car.addEventListener('click', () => {
        setStep(i);
        stopAuto();
      });
      car.addEventListener('keydown', (e) => {
        if (e.key === 'Enter' || e.key === ' ') {
          e.preventDefault();
          setStep(i);
          stopAuto();
        }
      });
    });

    // Attach click listeners to step buttons
    buttons.forEach((btn, i) => {
      btn.addEventListener('click', () => {
        setStep(i);
        stopAuto();
      });
    });

    // Play/pause button
    playBtn.addEventListener('click', () => {
      if (isPlaying) {
        stopAuto();
      } else {
        nextStep();
        startAuto();
      }
    });

    // Start auto loop
    startAuto();
  </script>
</body>
</html>

OGE.2.RL.2

Aligned learning resources

Related diagrams