<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Sea Turtle Nest Diagram</title>
  <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: #134e4a;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      width: 100%;
      min-height: 100%;
      padding: 10px;
      user-select: none;
    }

    .diagram-wrap {
      position: relative;
      width: 100%;
      max-width: 520px;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

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

    /* Interactive hotspots & tags */
    .callout-group {
      cursor: pointer;
      outline: none;
    }

    .callout-box {
      fill: #ffffff;
      stroke: #0d9488;
      stroke-width: 1.5;
      rx: 7;
      filter: drop-shadow(0 2px 5px rgba(13, 148, 136, 0.18));
      transition: fill 0.3s ease, stroke 0.3s ease, stroke-width 0.3s ease;
    }

    .callout-text {
      font-size: 11.5px;
      font-weight: 700;
      fill: #0f766e;
      pointer-events: none;
      transition: fill 0.3s ease;
    }

    .pointer-line {
      stroke: #0d9488;
      stroke-width: 1.75;
      stroke-linecap: round;
      fill: none;
      transition: stroke-width 0.3s ease;
    }

    .pointer-dot {
      fill: #0d9488;
      transition: transform 0.3s ease;
    }

    .callout-group:hover .callout-box,
    .callout-group:focus-visible .callout-box {
      fill: #f0fdfa;
      stroke: #0f766e;
      stroke-width: 2;
    }

    .callout-group.active .callout-box {
      fill: #0d9488;
      stroke: #115e59;
      stroke-width: 2;
    }

    .callout-group.active .callout-text {
      fill: #ffffff;
    }

    .callout-group.active .pointer-line {
      stroke-width: 2.5;
    }

    /* Gentle, smooth baby turtle crawling animation */
    @keyframes crawlSwim {
      0% {
        transform: translate(0, 0);
      }
      50% {
        transform: translate(0, -3.5px);
      }
      100% {
        transform: translate(0, 0);
      }
    }

    .turtle-inner {
      animation: crawlSwim 2.4s ease-in-out infinite;
    }

    .hatchling-2 .turtle-inner {
      animation-delay: 0.8s;
    }

    .hatchling-3 .turtle-inner {
      animation-delay: 1.6s;
    }

    /* Info card at bottom on select */
    .info-bar {
      margin-top: 8px;
      min-height: 38px;
      width: 100%;
      background: #f0fdfa;
      border: 1px solid #ccfbf1;
      border-radius: 8px;
      padding: 6px 14px;
      font-size: 12.5px;
      line-height: 1.35;
      color: #115e59;
      text-align: center;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.25s ease;
    }
  </style>
</head>
<body>

  <div class="diagram-wrap">
    <svg viewBox="0 0 420 270" aria-label="Cross-section diagram of a sea turtle nest in sand">
      <defs>
        
        <linearGradient id="sandGrad" x1="0" y1="0" x2="0" y2="1">
          <stop offset="0%" stop-color="#fef08a"/>
          <stop offset="25%" stop-color="#fde047"/>
          <stop offset="65%" stop-color="#f59e0b"/>
          <stop offset="100%" stop-color="#d97706"/>
        </linearGradient>

        
        <linearGradient id="skyGrad" x1="0" y1="0" x2="1" y2="0">
          <stop offset="0%" stop-color="#bae6fd"/>
          <stop offset="45%" stop-color="#e0f2fe"/>
          <stop offset="100%" stop-color="#fef9c3"/>
        </linearGradient>

        
        <radialGradient id="eggGrad" cx="35%" cy="35%" r="65%">
          <stop offset="0%" stop-color="#ffffff" />
          <stop offset="70%" stop-color="#f8fafc" />
          <stop offset="100%" stop-color="#cbd5e1" />
        </radialGradient>

        
        <marker id="tealArrow" viewBox="0 0 10 10" refX="6" refY="5" markerWidth="6" markerHeight="6" orient="auto-start-reverse">
          <path d="M 0 1.5 L 8 5 L 0 8.5 z" fill="#0d9488" />
        </marker>
      </defs>

      
      <rect x="0" y="0" width="420" height="85" fill="url(#skyGrad)" />
      
      
      <path d="M 0 58 Q 45 52, 90 62 T 165 66 L 165 85 L 0 85 Z" fill="#38bdf8" opacity="0.65" />
      <path d="M 0 68 Q 55 62, 110 72 L 110 85 L 0 85 Z" fill="#0284c7" opacity="0.45" />

      
      <path d="M 375 80 Q 380 62, 374 54 M 378 80 Q 386 65, 392 58 M 382 80 Q 396 68, 402 63" stroke="#65a30d" stroke-width="2.5" stroke-linecap="round" fill="none" />

      
      <path d="M 0 82 Q 130 72, 230 79 T 420 81 L 420 270 L 0 270 Z" fill="url(#sandGrad)" />

      
      <path d="M 0 130 Q 180 120, 420 135" stroke="#b45309" stroke-width="1.2" stroke-dasharray="6,8" opacity="0.25" fill="none" />
      <path d="M 0 185 Q 220 175, 420 190" stroke="#b45309" stroke-width="1.2" stroke-dasharray="8,10" opacity="0.25" fill="none" />

      
      <path d="M 205 78 Q 222 120, 215 165 Q 255 175, 260 215 Q 260 252, 210 252 Q 160 252, 160 215 Q 165 175, 205 165 Z" fill="#78350f" opacity="0.28" />

      
      <g id="eggs">
        <circle cx="188" cy="235" r="7.5" fill="url(#eggGrad)" stroke="#94a3b8" stroke-width="1" />
        <circle cx="203" cy="238" r="7.5" fill="url(#eggGrad)" stroke="#94a3b8" stroke-width="1" />
        <circle cx="218" cy="236" r="7.5" fill="url(#eggGrad)" stroke="#94a3b8" stroke-width="1" />
        <circle cx="232" cy="232" r="7.5" fill="url(#eggGrad)" stroke="#94a3b8" stroke-width="1" />
        
        <circle cx="195" cy="223" r="7.5" fill="url(#eggGrad)" stroke="#94a3b8" stroke-width="1" />
        <circle cx="210" cy="225" r="7.5" fill="url(#eggGrad)" stroke="#94a3b8" stroke-width="1" />
        <circle cx="225" cy="221" r="7.5" fill="url(#eggGrad)" stroke="#94a3b8" stroke-width="1" />
        
        <circle cx="202" cy="210" r="7.5" fill="url(#eggGrad)" stroke="#94a3b8" stroke-width="1" />
        <circle cx="217" cy="209" r="7.5" fill="url(#eggGrad)" stroke="#94a3b8" stroke-width="1" />
      </g>

      
      <path id="climbPath" d="M 205 195 Q 192 145, 210 110 Q 215 88, 192 76 Q 155 72, 115 74" 
            fill="none" stroke="#0d9488" stroke-width="2.5" stroke-dasharray="5,4" marker-end="url(#tealArrow)" />

      
      
      <g class="hatchling-group hatchling-1" transform="translate(198, 175) rotate(-70) scale(0.7)">
        <g class="turtle-inner">
          
          <path d="M -7 -4 Q -16 -12, -11 -16 M 7 -4 Q 16 -12, 11 -16" stroke="#065f46" stroke-width="3.5" stroke-linecap="round" fill="none" />
          <path d="M -6 6 Q -12 13, -7 16 M 6 6 Q 12 13, 7 16" stroke="#065f46" stroke-width="2.8" stroke-linecap="round" fill="none" />
          
          <ellipse cx="0" cy="0" rx="9" ry="12" fill="#059669" stroke="#047857" stroke-width="1.2" />
          <ellipse cx="0" cy="0" rx="5" ry="7" fill="#10b981" opacity="0.6" />
          
          <ellipse cx="0" cy="-12" rx="4.5" ry="5.5" fill="#047857" />
          <circle cx="-2" cy="-13" r="0.8" fill="#ffffff" />
          <circle cx="2" cy="-13" r="0.8" fill="#ffffff" />
        </g>
      </g>

      
      <g class="hatchling-group hatchling-2" transform="translate(206, 120) rotate(-45) scale(0.72)">
        <g class="turtle-inner">
          <path d="M -7 -4 Q -16 -12, -11 -16 M 7 -4 Q 16 -12, 11 -16" stroke="#065f46" stroke-width="3.5" stroke-linecap="round" fill="none" />
          <path d="M -6 6 Q -12 13, -7 16 M 6 6 Q 12 13, 7 16" stroke="#065f46" stroke-width="2.8" stroke-linecap="round" fill="none" />
          <ellipse cx="0" cy="0" rx="9" ry="12" fill="#059669" stroke="#047857" stroke-width="1.2" />
          <ellipse cx="0" cy="0" rx="5" ry="7" fill="#10b981" opacity="0.6" />
          <ellipse cx="0" cy="-12" rx="4.5" ry="5.5" fill="#047857" />
          <circle cx="-2" cy="-13" r="0.8" fill="#ffffff" />
          <circle cx="2" cy="-13" r="0.8" fill="#ffffff" />
        </g>
      </g>

      
      <g class="hatchling-group hatchling-3" transform="translate(145, 69) rotate(-95) scale(0.74)">
        <g class="turtle-inner">
          <path d="M -7 -4 Q -16 -12, -11 -16 M 7 -4 Q 16 -12, 11 -16" stroke="#065f46" stroke-width="3.5" stroke-linecap="round" fill="none" />
          <path d="M -6 6 Q -12 13, -7 16 M 6 6 Q 12 13, 7 16" stroke="#065f46" stroke-width="2.8" stroke-linecap="round" fill="none" />
          <ellipse cx="0" cy="0" rx="9" ry="12" fill="#059669" stroke="#047857" stroke-width="1.2" />
          <ellipse cx="0" cy="0" rx="5" ry="7" fill="#10b981" opacity="0.6" />
          <ellipse cx="0" cy="-12" rx="4.5" ry="5.5" fill="#047857" />
          <circle cx="-2" cy="-13" r="0.8" fill="#ffffff" />
          <circle cx="2" cy="-13" r="0.8" fill="#ffffff" />
        </g>
      </g>

      
      <g class="callout-group" id="tag-surface" tabindex="0" role="button" aria-label="Sand surface label"
         data-desc="Sand surface: Warm beach sand protects the nest until hatchlings emerge at night.">
        <polyline class="pointer-line" points="305,38 255,38 238,76" />
        <circle class="pointer-dot" cx="238" cy="76" r="3.5" />
        <rect class="callout-box" x="300" y="24" width="105" height="26" />
        <text class="callout-text" x="352.5" y="41.5" text-anchor="middle">Sand surface</text>
      </g>

      
      <g class="callout-group" id="tag-chamber" tabindex="0" role="button" aria-label="Hidden egg chamber underground label"
         data-desc="Hidden egg chamber underground: Mother turtle digs a flask-shaped pocket deep in the sand.">
        <polyline class="pointer-line" points="225,230 255,230 270,230" />
        <circle class="pointer-dot" cx="225" cy="230" r="3.5" />
        <rect class="callout-box" x="250" y="217" width="162" height="26" />
        <text class="callout-text" x="331" y="234.5" text-anchor="middle">Hidden egg chamber</text>
      </g>

      
      <g class="callout-group" id="tag-climb" tabindex="0" role="button" aria-label="Baby turtles climbing out label"
         data-desc="Climbing out: Baby turtles hatch together and crawl upward through the sand to the ocean.">
        <polyline class="pointer-line" points="160,132 185,132 204,120" />
        <circle class="pointer-dot" cx="204" cy="120" r="3.5" />
        <rect class="callout-box" x="12" y="119" width="152" height="26" />
        <text class="callout-text" x="88" y="136.5" text-anchor="middle">Baby turtles climb out</text>
      </g>
    </svg>

    
    <div class="info-bar" id="infoBar">
      Click or tap any label above to explore how sea turtles nest!
    </div>
  </div>

  <script>
    const tags = document.querySelectorAll('.callout-group');
    const infoBar = document.getElementById('infoBar');
    const defaultInfo = "Click or tap any label above to explore how sea turtles nest!";

    tags.forEach(tag => {
      const activate = () => {
        const wasActive = tag.classList.contains('active');
        tags.forEach(t => t.classList.remove('active'));
        if (!wasActive) {
          tag.classList.add('active');
          infoBar.textContent = tag.getAttribute('data-desc');
        } else {
          infoBar.textContent = defaultInfo;
        }
      };

      tag.addEventListener('click', activate);
      tag.addEventListener('keydown', (e) => {
        if (e.key === 'Enter' || e.key === ' ') {
          e.preventDefault();
          activate();
        }
      });
    });
  </script>
</body>
</html>

Comparing Photographs and Illustrations in Nonfiction

<!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>Photograph vs Illustration</title>
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    }

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

    .diagram-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      width: 100%;
      max-width: 640px;
    }

    @media (max-width: 480px) {
      .diagram-grid {
        grid-template-columns: 1fr;
        gap: 14px;
      }
    }

    /* Column Card */
    .col-card {
      background: #f8fafc;
      border-radius: 12px;
      padding: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      transition: box-shadow 0.2s ease;
    }

    .card-photo {
      border: 2px solid #bae6fd;
    }

    .card-photo:hover {
      box-shadow: 0 4px 12px rgba(2, 132, 199, 0.15);
    }

    .card-illus {
      border: 2px solid #fde68a;
    }

    .card-illus:hover {
      box-shadow: 0 4px 12px rgba(245, 158, 11, 0.15);
    }

    /* Header Badges */
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 14px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 10px;
      letter-spacing: 0.2px;
    }

    .badge-photo {
      background: #0284c7;
    }

    .badge-illus {
      background: #f59e0b;
    }

    /* Visual Demo Area */
    .visual-box {
      width: 100%;
      height: 100px;
      border-radius: 8px;
      position: relative;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 12px;
    }

    /* Realistic Photo Mockup */
    .box-photo {
      background: linear-gradient(180deg, #0284c7 0%, #0369a1 100%);
      box-shadow: inset 0 0 20px rgba(0,0,0,0.25);
    }

    .real-subject {
      font-size: 44px;
      filter: drop-shadow(0 4px 6px rgba(0,0,0,0.3));
      user-select: none;
    }

    .lens-tag {
      position: absolute;
      bottom: 6px;
      right: 8px;
      background: rgba(0, 0, 0, 0.45);
      color: #e0f2fe;
      font-size: 10px;
      font-weight: 600;
      padding: 2px 6px;
      border-radius: 4px;
      backdrop-filter: blur(2px);
    }

    /* Explanatory Diagram Mockup */
    .box-illus {
      background: #fffbeb;
      border: 1px dashed #d97706;
    }

    .diagram-subject {
      position: relative;
      font-size: 40px;
      user-select: none;
    }

    .callout-arrow {
      position: absolute;
      top: 14px;
      left: 14px;
      font-size: 11px;
      font-weight: 700;
      color: #b45309;
      background: #ffffff;
      padding: 2px 6px;
      border-radius: 4px;
      border: 1px solid #f59e0b;
      box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    }

    .callout-cutaway {
      position: absolute;
      bottom: 12px;
      right: 14px;
      font-size: 11px;
      font-weight: 700;
      color: #b45309;
      background: #ffffff;
      padding: 2px 6px;
      border-radius: 4px;
      border: 1px solid #f59e0b;
      box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    }

    /* Bullet Feature Points */
    .feature-list {
      width: 100%;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .feature-item {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 7px 10px;
      border-radius: 8px;
      font-size: 13px;
      font-weight: 600;
      text-align: left;
      transition: background 0.15s ease;
    }

    .item-photo {
      background: #f0f9ff;
      color: #0369a1;
      border-left: 3px solid #0284c7;
    }

    .item-illus {
      background: #fefce8;
      color: #92400e;
      border-left: 3px solid #f59e0b;
    }

    .feature-icon {
      font-size: 14px;
      flex-shrink: 0;
    }
  </style>
</head>
<body>

  <div class="diagram-grid">
    
    <div class="col-card card-photo">
      <div class="badge badge-photo">
        <span>📷</span> Photograph (Camera)
      </div>

      <div class="visual-box box-photo">
        <span class="real-subject">🐢</span>
        <span class="lens-tag">REAL LIFE</span>
      </div>

      <div class="feature-list">
        <div class="feature-item item-photo">
          <span class="feature-icon">✨</span>
          <span>Exact real-life texture</span>
        </div>
        <div class="feature-item item-photo">
          <span class="feature-icon">🎨</span>
          <span>Real colors</span>
        </div>
        <div class="feature-item item-photo">
          <span class="feature-icon">✓</span>
          <span>Actual proof it happened</span>
        </div>
      </div>
    </div>

    
    <div class="col-card card-illus">
      <div class="badge badge-illus">
        <span>✏️</span> Illustration (Drawing)
      </div>

      <div class="visual-box box-illus">
        <div class="callout-arrow">↗ Shell</div>
        <span class="diagram-subject">🐢</span>
        <div class="callout-cutaway">🥚 Nest Inside</div>
      </div>

      <div class="feature-list">
        <div class="feature-item item-illus">
          <span class="feature-icon">🔍</span>
          <span>Shows hidden inside parts</span>
        </div>
        <div class="feature-item item-illus">
          <span class="feature-icon">🏷️</span>
          <span>Uses labels &amp; arrows</span>
        </div>
        <div class="feature-item item-illus">
          <span class="feature-icon">⏳</span>
          <span>Shows steps over time</span>
        </div>
      </div>
    </div>
  </div>

</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: system-ui, -apple-system, sans-serif;
      background: #f8fafc;
      color: #1e2945;
      padding: 12px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .book-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 0 4px;
    }
    .book-title {
      font-size: 16px;
      font-weight: 800;
      color: #0f172a;
      letter-spacing: -0.02em;
    }
    .page-tag {
      font-size: 12px;
      font-weight: 600;
      color: #64748b;
      background: #e2e8f0;
      padding: 2px 8px;
      border-radius: 12px;
    }

    .spread {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    @media (max-width: 480px) {
      .spread {
        grid-template-columns: 1fr;
      }
    }

    .panel {
      background: #ffffff;
      border-radius: 14px;
      border: 1px solid #e2e8f0;
      padding: 10px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 8px;
      border-radius: 6px;
      align-self: flex-start;
    }
    .badge-photo {
      background: #e0f2fe;
      color: #0369a1;
      border: 1px solid #bae6fd;
    }
    .badge-draw {
      background: #fef3c7;
      color: #b45309;
      border: 1px solid #fde68a;
    }

    .visual-frame {
      height: 180px;
      border-radius: 10px;
      overflow: hidden;
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    /* Photo Frame Styling */
    .photo-bg {
      width: 100%;
      height: 100%;
      background: radial-gradient(circle at 65% 35%, #86efac 0%, #16a34a 45%, #14532d 100%);
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: inset 0 0 20px rgba(0,0,0,0.25);
    }
    .flower-stem {
      position: absolute;
      bottom: -10px;
      right: 35px;
      width: 8px;
      height: 90px;
      background: #15803d;
      border-radius: 4px;
      transform: rotate(-15deg);
    }
    .flower-petal {
      position: absolute;
      bottom: 50px;
      right: 25px;
      width: 50px;
      height: 50px;
      background: radial-gradient(circle, #f43f5e, #be123c);
      border-radius: 50%;
    }

    /* Illustration Frame Styling */
    .draw-bg {
      width: 100%;
      height: 100%;
      background: #fafafa;
      border: 2px dashed #cbd5e1;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      grid-template-rows: repeat(2, 1fr);
      padding: 6px;
      gap: 6px;
      position: relative;
    }
    .step-box {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      position: relative;
      cursor: pointer;
      transition: background-color 0.2s, box-shadow 0.2s;
    }
    .step-box.active {
      background: #fffbeb;
      box-shadow: 0 0 0 2px #f59e0b;
    }
    .step-num {
      position: absolute;
      top: 3px;
      left: 4px;
      width: 16px;
      height: 16px;
      background: #0284c7;
      color: #fff;
      border-radius: 50%;
      font-size: 10px;
      font-weight: bold;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .step-icon {
      font-size: 22px;
      line-height: 1;
    }
    .step-label {
      font-size: 11px;
      font-weight: 700;
      color: #334155;
      margin-top: 2px;
    }

    /* Directional flow indicators */
    .flow-arrow {
      position: absolute;
      font-size: 13px;
      font-weight: bold;
      color: #94a3b8;
      pointer-events: none;
    }
    .arr-1 { top: 22%; left: 47%; }
    .arr-2 { top: 46%; right: 14%; transform: rotate(90deg); }
    .arr-3 { bottom: 22%; left: 47%; transform: rotate(180deg); }

    .caption {
      font-size: 12px;
      font-weight: 600;
      color: #475569;
      line-height: 1.3;
      display: flex;
      align-items: center;
      gap: 4px;
    }
    .caption-strong {
      color: #0f172a;
      font-weight: 700;
    }
  </style>
</head>
<body>

  <div class="book-header">
    <div class="book-title">📖 Amazing Monarchs</div>
    <div class="page-tag">Comparing Visuals</div>
  </div>

  <div class="spread">
    
    <div class="panel">
      <div class="badge badge-photo">
        <span>📷</span> Photo shows real look
      </div>
      
      <div class="visual-frame">
        <div class="photo-bg">
          <div class="flower-stem"></div>
          <div class="flower-petal"></div>
          
          <svg viewBox="0 0 160 120" width="130" height="100" style="position:relative; z-index:2; filter: drop-shadow(0 4px 6px rgba(0,0,0,0.35));">
            
            <path d="M 80,60 C 60,10 15,20 15,50 C 15,75 55,90 80,65 Z" fill="#ea580c" stroke="#0f172a" stroke-width="3"/>
            <path d="M 80,60 C 65,30 35,35 30,52 C 45,68 70,68 80,60 Z" fill="#f97316"/>
            
            <path d="M 80,60 C 100,10 145,20 145,50 C 145,75 105,90 80,65 Z" fill="#ea580c" stroke="#0f172a" stroke-width="3"/>
            <path d="M 80,60 C 95,30 125,35 130,52 C 115,68 90,68 80,60 Z" fill="#f97316"/>
            
            <line x1="80" y1="60" x2="35" y2="35" stroke="#0f172a" stroke-width="2"/>
            <line x1="80" y1="60" x2="45" y2="65" stroke="#0f172a" stroke-width="2"/>
            <line x1="80" y1="60" x2="125" y2="35" stroke="#0f172a" stroke-width="2"/>
            <line x1="80" y1="60" x2="115" y2="65" stroke="#0f172a" stroke-width="2"/>
            
            <circle cx="22" cy="45" r="1.5" fill="#ffffff"/>
            <circle cx="25" cy="55" r="1.5" fill="#ffffff"/>
            <circle cx="138" cy="45" r="1.5" fill="#ffffff"/>
            <circle cx="135" cy="55" r="1.5" fill="#ffffff"/>
            
            <ellipse cx="80" cy="62" rx="4" ry="16" fill="#0f172a"/>
            
            <path d="M 78,48 Q 72,36 68,36" fill="none" stroke="#0f172a" stroke-width="1.5" stroke-linecap="round"/>
            <path d="M 82,48 Q 88,36 92,36" fill="none" stroke="#0f172a" stroke-width="1.5" stroke-linecap="round"/>
          </svg>
        </div>
      </div>

      <div class="caption">
        <span class="caption-strong">Photo:</span> Real scales on orange wings
      </div>
    </div>

    
    <div class="panel">
      <div class="badge badge-draw">
        <span>✏️</span> Drawing shows changes over time
      </div>
      
      <div class="visual-frame">
        <div class="draw-bg">
          <span class="flow-arrow arr-1">→</span>
          <span class="flow-arrow arr-2">→</span>
          <span class="flow-arrow arr-3">→</span>

          <div class="step-box active" onclick="selectStep(this)">
            <div class="step-num">1</div>
            <div class="step-icon">🥚</div>
            <div class="step-label">Egg</div>
          </div>

          <div class="step-box" onclick="selectStep(this)">
            <div class="step-num">2</div>
            <div class="step-icon">🐛</div>
            <div class="step-label">Caterpillar</div>
          </div>

          <div class="step-box" onclick="selectStep(this)">
            <div class="step-num">4</div>
            <div class="step-icon">🦋</div>
            <div class="step-label">Adult</div>
          </div>

          <div class="step-box" onclick="selectStep(this)">
            <div class="step-num">3</div>
            <div class="step-icon">🌿</div>
            <div class="step-label">Chrysalis</div>
          </div>
        </div>
      </div>

      <div class="caption">
        <span class="caption-strong">Illustration:</span> 4 Life Stages
      </div>
    </div>
  </div>

  <script>
    let stepIndex = 0;
    const steps = document.querySelectorAll('.step-box');
    
    function selectStep(element) {
      steps.forEach(s => s.classList.remove('active'));
      element.classList.add('active');
    }

    // Gentle auto-cycle through stages to demonstrate sequence
    setInterval(() => {
      stepIndex = (stepIndex + 1) % steps.length;
      steps.forEach((s, idx) => {
        s.classList.toggle('active', idx === stepIndex);
      });
    }, 3000);
  </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;
      color: #0f172a;
      background: transparent;
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 8px;
      width: 100%;
      min-height: 100%;
    }

    .container {
      width: 100%;
      max-width: 480px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    /* Responsive Flexbox Header */
    .header-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 6px;
      width: 100%;
    }

    .camera-tag {
      background: #0284c7;
      color: #ffffff;
      font-size: 13px;
      font-weight: 800;
      padding: 5px 10px;
      border-radius: 20px;
      display: inline-flex;
      align-items: center;
      gap: 5px;
      white-space: nowrap;
    }

    .instruction-tag {
      font-size: 12px;
      color: #475569;
      font-weight: 600;
    }

    /* Interactive Feature Buttons (Wrap nicely on mobile) */
    .button-group {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      width: 100%;
    }

    .feature-btn {
      flex: 1 1 calc(33.333% - 6px);
      min-width: 95px;
      background: #f0f9ff;
      color: #0369a1;
      border: 1.5px solid #bae6fd;
      font-size: 12px;
      font-weight: 700;
      padding: 6px 8px;
      border-radius: 8px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 4px;
      transition: background-color 0.2s, color 0.2s, border-color 0.2s;
      touch-action: manipulation;
      text-align: center;
    }

    .feature-btn:hover {
      background: #e0f2fe;
      border-color: #38bdf8;
    }

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

    /* Photo Canvas Area (No outer card drop shadows or borders) */
    .photo-area {
      position: relative;
      width: 100%;
      border-radius: 10px;
      overflow: hidden;
      background: #02213d;
      aspect-ratio: 440 / 280;
    }

    .scene-svg {
      width: 100%;
      height: 100%;
      display: block;
    }

    /* Educational Info Callout Box */
    .info-box {
      background: #f8fafc;
      border-left: 4px solid #0284c7;
      padding: 8px 12px;
      border-radius: 0 8px 8px 0;
      min-height: 48px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .info-title {
      font-size: 13px;
      font-weight: 800;
      color: #0369a1;
      margin-bottom: 2px;
    }

    .info-desc {
      font-size: 12px;
      color: #334155;
      line-height: 1.35;
    }

    /* Highlight Target Rings */
    .target-ring {
      fill: none;
      stroke: #38bdf8;
      stroke-width: 3;
      stroke-dasharray: 5 4;
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .target-ring.active {
      opacity: 1;
    }

    .target-dot {
      fill: #ffffff;
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .target-dot.active {
      opacity: 0.9;
    }

    /* Soft Animated Caustics */
    @keyframes waveShimmer {
      0%, 100% { opacity: 0.3; }
      50% { opacity: 0.65; }
    }
    .caustic-ray {
      animation: waveShimmer 4s ease-in-out infinite;
    }
  </style>
</head>
<body>

  <div class="container">
    
    <div class="header-bar">
      <div class="camera-tag">
        <span>📷</span> Photograph: Real Camera
      </div>
      <div class="instruction-tag">
        Tap features to inspect
      </div>
    </div>

    
    <div class="button-group">
      <button class="feature-btn active" id="btn-skin" onclick="selectFeature('skin')">
        <span>🔍</span> Skin Texture
      </button>
      <button class="feature-btn" id="btn-sunlight" onclick="selectFeature('sunlight')">
        <span>✦</span> Sun Reflections
      </button>
      <button class="feature-btn" id="btn-ocean" onclick="selectFeature('ocean')">
        <span>🌊</span> Ocean Water
      </button>
    </div>

    
    <div class="photo-area">
      <svg class="scene-svg" viewBox="0 0 440 280">
        <defs>
          
          <linearGradient id="oceanGrad" x1="0" y1="0" x2="0" y2="1">
            <stop offset="0%" stop-color="#2dd4bf" />
            <stop offset="25%" stop-color="#0284c7" />
            <stop offset="65%" stop-color="#034e7b" />
            <stop offset="100%" stop-color="#02213d" />
          </linearGradient>

          
          <linearGradient id="sunRay" x1="0" y1="0" x2="0.6" y2="1">
            <stop offset="0%" stop-color="#ffffff" stop-opacity="0.65" />
            <stop offset="100%" stop-color="#ffffff" stop-opacity="0" />
          </linearGradient>

          
          <radialGradient id="shellGrad" cx="45%" cy="40%" r="55%">
            <stop offset="0%" stop-color="#84532a" />
            <stop offset="50%" stop-color="#593414" />
            <stop offset="90%" stop-color="#2b1706" />
          </radialGradient>

          
          <linearGradient id="skinGrad" x1="0" y1="0" x2="1" y2="1">
            <stop offset="0%" stop-color="#8ba888" />
            <stop offset="60%" stop-color="#557053" />
            <stop offset="100%" stop-color="#2d402c" />
          </linearGradient>
        </defs>

        
        <rect width="440" height="280" fill="url(#oceanGrad)" />

        
        <circle cx="50" cy="160" r="1.5" fill="#fff" opacity="0.3" />
        <circle cx="85" cy="220" r="2" fill="#fff" opacity="0.2" />
        <circle cx="390" cy="190" r="1.5" fill="#fff" opacity="0.35" />
        <circle cx="350" cy="130" r="2.5" fill="#fff" opacity="0.25" />
        <circle cx="210" cy="250" r="1" fill="#fff" opacity="0.4" />

        
        <polygon class="caustic-ray" points="250,0 320,0 220,200 175,200" fill="url(#sunRay)" />
        <polygon class="caustic-ray" points="330,0 410,0 310,230 250,230" fill="url(#sunRay)" style="animation-delay: 2s;" />

        
        <g transform="translate(15, -10)">
          
          <ellipse cx="295" cy="175" rx="30" ry="14" fill="#3d563a" transform="rotate(25 295 175)" />

          
          <ellipse cx="145" cy="180" rx="26" ry="12" fill="#324730" transform="rotate(-15 145 180)" />

          
          <ellipse cx="220" cy="155" rx="72" ry="52" fill="#180e04" opacity="0.4" />
          <ellipse cx="218" cy="150" rx="70" ry="50" fill="url(#shellGrad)" />

          
          <path d="M218,110 L235,124 L235,150 L218,162 L201,150 L201,124 Z" fill="#6d421d" stroke="#1d0f04" stroke-width="2" />
          <path d="M218,162 L235,174 L235,192 L218,198 L201,192 L201,174 Z" fill="#523113" stroke="#1d0f04" stroke-width="2" />

          <path d="M201,124 L165,128 L160,154 L201,150 Z" fill="#5e3617" stroke="#1d0f04" stroke-width="2" />
          <path d="M201,150 L160,154 L166,178 L201,174 Z" fill="#4a2a10" stroke="#1d0f04" stroke-width="2" />

          <path d="M235,124 L271,128 L276,154 L235,150 Z" fill="#784b22" stroke="#1d0f04" stroke-width="2" />
          <path d="M235,150 L276,154 L270,178 L235,174 Z" fill="#633b18" stroke="#1d0f04" stroke-width="2" />

          
          <ellipse cx="218" cy="150" rx="70" ry="50" fill="none" stroke="#2b1706" stroke-width="3" stroke-dasharray="14 3" />

          
          <path d="M152,142 Q130,138 115,130 Q105,124 95,130 Q85,138 92,148 Q105,158 128,154 Q146,152 152,150 Z" fill="url(#skinGrad)" />
          <ellipse cx="98" cy="136" rx="3.5" ry="3.5" fill="#0f172a" />
          <circle cx="97" cy="135" r="1.2" fill="#ffffff" />

          
          <circle cx="106" cy="136" r="1.8" fill="#2d402c" opacity="0.85" />
          <circle cx="112" cy="134" r="2.2" fill="#2d402c" opacity="0.85" />
          <circle cx="120" cy="138" r="2.8" fill="#2d402c" opacity="0.85" />
          <circle cx="114" cy="144" r="2" fill="#2d402c" opacity="0.85" />
          <circle cx="126" cy="146" r="2.5" fill="#2d402c" opacity="0.85" />
          <circle cx="135" cy="142" r="3" fill="#2d402c" opacity="0.85" />
          <circle cx="142" cy="146" r="3.2" fill="#2d402c" opacity="0.85" />

          
          <path d="M160,154 C150,185 110,210 65,225 C80,205 110,185 140,166 C152,158 158,155 160,154 Z" fill="url(#skinGrad)" stroke="#1e2c1d" stroke-width="1.5" />

          <ellipse cx="138" cy="172" rx="4" ry="2.5" fill="#2d402c" opacity="0.9" transform="rotate(-25 138 172)" />
          <ellipse cx="124" cy="183" rx="4" ry="2.2" fill="#2d402c" opacity="0.9" transform="rotate(-30 124 183)" />
          <ellipse cx="108" cy="195" rx="3.5" ry="2" fill="#2d402c" opacity="0.9" transform="rotate(-35 108 195)" />
          <ellipse cx="90" cy="208" rx="3" ry="1.8" fill="#2d402c" opacity="0.9" transform="rotate(-40 90 208)" />
          <ellipse cx="76" cy="217" rx="2.5" ry="1.5" fill="#2d402c" opacity="0.9" transform="rotate(-45 76 217)" />

          
          <path d="M230,118 Q250,125 258,140" stroke="#ffffff" stroke-width="3" stroke-linecap="round" fill="none" opacity="0.6" />
        </g>

        
        
        <circle id="target-skin" class="target-ring active" cx="130" cy="170" r="38" />
        <circle id="dot-skin" class="target-dot active" cx="130" cy="170" r="4" />

        
        <circle id="target-sunlight" class="target-ring" cx="280" cy="65" r="38" />
        <circle id="dot-sunlight" class="target-dot" cx="280" cy="65" r="4" />

        
        <circle id="target-ocean" class="target-ring" cx="370" cy="205" r="38" />
        <circle id="dot-ocean" class="target-dot" cx="370" cy="205" r="4" />
      </svg>
    </div>

    
    <div class="info-box">
      <div class="info-title" id="info-title">🔍 True Skin Texture</div>
      <div class="info-desc" id="info-desc">A camera captures real organic skin bumps, flipper scales, and unique natural patterns on the turtle.</div>
    </div>
  </div>

  <script>
    const featureData = {
      skin: {
        title: "🔍 True Skin Texture",
        desc: "A camera captures real organic skin bumps, flipper scales, and unique natural patterns on the turtle."
      },
      sunlight: {
        title: "✦ Real Sunlight Reflections",
        desc: "Real sunlight shines through moving water to create genuine bright beams and water ripples (caustics)."
      },
      ocean: {
        title: "🌊 Actual Ocean Background",
        desc: "A camera photo shows true deep water gradients, natural darkness at the bottom, and real floating particles."
      }
    };

    function selectFeature(feature) {
      // Update buttons
      document.querySelectorAll('.feature-btn').forEach(btn => btn.classList.remove('active'));
      const activeBtn = document.getElementById('btn-' + feature);
      if (activeBtn) activeBtn.classList.add('active');

      // Update target rings
      document.querySelectorAll('.target-ring').forEach(ring => ring.classList.remove('active'));
      const activeTarget = document.getElementById('target-' + feature);
      if (activeTarget) activeTarget.classList.add('active');

      // Update center dots
      document.querySelectorAll('.target-dot').forEach(dot => dot.classList.remove('active'));
      const activeDot = document.getElementById('dot-' + feature);
      if (activeDot) activeDot.classList.add('active');

      // Update text explanation
      if (featureData[feature]) {
        document.getElementById('info-title').textContent = featureData[feature].title;
        document.getElementById('info-desc').textContent = featureData[feature].desc;
      }
    }
  </script>
</body>
</html>

OGE.2.RI.4

Aligned learning resources

Related diagrams