<!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;
    }

    .comparison-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      width: 100%;
      max-width: 600px;
    }

    @media (max-width: 380px) {
      .comparison-grid {
        grid-template-columns: 1fr;
        gap: 10px;
      }
    }

    .ingredient-card {
      background: #ffffff;
      border: 2px solid #e2e8f0;
      border-radius: 16px;
      padding: 14px 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
      position: relative;
    }

    .card-rock {
      border-color: #cbd5e1;
      background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    }

    .card-organic {
      border-color: #dcfce7;
      background: linear-gradient(180deg, #f0fdf4 0%, #f7fee7 100%);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 15px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 20px;
      margin-bottom: 8px;
    }

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

    .badge-organic {
      background: #dcfce7;
      color: #166534;
    }

    .visual-stage {
      width: 100%;
      height: 140px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 6px 0;
    }

    svg {
      width: 100%;
      height: 100%;
      max-height: 140px;
    }

    .sub-label {
      font-size: 13px;
      font-weight: 600;
      line-height: 1.3;
      margin-top: 6px;
      padding: 4px 8px;
      border-radius: 6px;
    }

    .sub-rock {
      color: #475569;
      background: rgba(148, 163, 184, 0.15);
    }

    .sub-organic {
      color: #15803d;
      background: rgba(34, 197, 94, 0.12);
    }
  </style>
</head>
<body>

  <div class="comparison-grid">
    
    <div class="ingredient-card card-rock">
      <div class="badge badge-rock">🪨 Rock Particles</div>
      
      <div class="visual-stage">
        <svg viewBox="0 0 200 140" fill="none" xmlns="http://www.w3.org/2000/svg">
          
          <polygon points="20,78 42,42 78,48 92,85 70,105 32,98" fill="#94a3b8" stroke="#64748b" stroke-width="2.5" stroke-linejoin="round"/>
          <path d="M 42 42 L 58 72 L 92 85" stroke="#64748b" stroke-width="2" stroke-linecap="round"/>
          <path d="M 58 72 L 70 105" stroke="#475569" stroke-width="1.5"/>

          
          <path d="M 100,70 L 116,70" stroke="#94a3b8" stroke-width="2.5" stroke-linecap="round"/>
          <path d="M 112,65 L 118,70 L 112,75" stroke="#94a3b8" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"/>

          
          <ellipse cx="132" cy="58" rx="10" ry="7" fill="#cbd5e1" stroke="#64748b" stroke-width="2"/>
          <ellipse cx="145" cy="74" rx="8" ry="6" fill="#94a3b8" stroke="#475569" stroke-width="1.5"/>
          <ellipse cx="130" cy="88" rx="7" ry="5" fill="#e2e8f0" stroke="#64748b" stroke-width="1.5"/>

          
          <circle cx="166" cy="50" r="3.5" fill="#d97706"/>
          <circle cx="178" cy="58" r="4" fill="#ca8a04"/>
          <circle cx="165" cy="68" r="3" fill="#b45309"/>
          <circle cx="182" cy="72" r="3" fill="#d97706"/>
          <circle cx="170" cy="82" r="4.5" fill="#ca8a04"/>
          <circle cx="184" cy="88" r="3" fill="#b45309"/>
          <circle cx="162" cy="94" r="2.5" fill="#d97706"/>
          <circle cx="175" cy="100" r="3.5" fill="#ca8a04"/>
        </svg>
      </div>

      <div class="sub-label sub-rock">Broken from rocks<br>over centuries</div>
    </div>

    
    <div class="ingredient-card card-organic">
      <div class="badge badge-organic">🍂 Organic Matter</div>
      
      <div class="visual-stage">
        <svg viewBox="0 0 200 140" fill="none" xmlns="http://www.w3.org/2000/svg">
          
          <g transform="translate(10, 32)">
            
            <path d="M 12,42 C 6,24 24,12 44,8 C 58,16 66,32 58,54 C 44,66 22,60 12,42 Z" fill="#b45309" stroke="#78350f" stroke-width="2"/>
            
            <path d="M 6,56 C 14,46 32,32 50,14" stroke="#78350f" stroke-width="2" stroke-linecap="round"/>
            <path d="M 26,40 Q 36,46 44,48" stroke="#78350f" stroke-width="1.5"/>
            <path d="M 38,28 Q 44,30 52,30" stroke="#78350f" stroke-width="1.5"/>
            
            <ellipse cx="28" cy="24" rx="4" ry="3" fill="#f0fdf4"/>
            <ellipse cx="44" cy="40" rx="3" ry="4" fill="#f0fdf4"/>
          </g>

          
          <path d="M 80,70 L 96,70" stroke="#86efac" stroke-width="2.5" stroke-linecap="round"/>
          <path d="M 92,65 L 98,70 L 92,75" stroke="#86efac" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"/>

          
          <path d="M 106,75 C 104,70 108,64 114,64 C 120,64 124,68 126,73 C 128,78 124,84 118,85 C 110,86 106,81 106,75 Z" fill="#3f2e21"/>
          <path d="M 120,54 C 118,50 122,46 127,47 C 131,48 133,52 131,56 C 129,60 123,60 120,54 Z" fill="#2d1f15"/>
          <path d="M 124,90 C 121,86 125,81 130,81 C 135,82 138,87 135,92 C 131,96 126,95 124,90 Z" fill="#3f2e21"/>

          
          <path d="M 142,95 C 146,80 156,76 160,86 C 164,96 174,90 178,74 C 182,58 174,48 168,44" fill="none" stroke="#f472b6" stroke-width="6" stroke-linecap="round"/>
          
          <path d="M 172,70 C 175,65 177,60 176,55" fill="none" stroke="#fbcfe8" stroke-width="7" stroke-linecap="round"/>
        </svg>
      </div>

      <div class="sub-label sub-organic">Decayed plants<br>and animals</div>
    </div>
  </div>

</body>
</html>

What Is Soil?

<!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: #fdfbf7;
      color: #1e2945;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      height: 100%;
      padding: 10px;
      user-select: none;
      -webkit-user-select: none;
    }

    .diagram-wrap {
      position: relative;
      width: 100%;
      max-width: 580px;
      flex: 1;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    svg {
      width: 100%;
      height: 100%;
      max-height: 380px;
      border-radius: 12px;
      background: #f5eedf;
      display: block;
    }

    /* Grain textures & styles */
    .grain-mineral {
      fill: #d7ba8d;
      stroke: #bda073;
      stroke-width: 3;
      cursor: pointer;
      transition: filter 0.2s ease;
    }
    .grain-mineral-alt {
      fill: #e4cca4;
      stroke: #c8ad81;
      stroke-width: 3;
      cursor: pointer;
      transition: filter 0.2s ease;
    }
    .grain-humus {
      fill: #4a2810;
      stroke: #321908;
      stroke-width: 3;
      cursor: pointer;
      transition: filter 0.2s ease;
    }
    .grain-humus-alt {
      fill: #5c3417;
      stroke: #3d200b;
      stroke-width: 3;
      cursor: pointer;
      transition: filter 0.2s ease;
    }

    /* Interactive zones */
    .zone {
      cursor: pointer;
      transition: opacity 0.2s ease, stroke-width 0.2s ease;
    }
    .water-film {
      fill: rgba(56, 189, 248, 0.45);
      stroke: #0284c7;
      stroke-width: 2;
    }
    .air-space {
      fill: rgba(255, 255, 255, 0.7);
      stroke: #94a3b8;
      stroke-width: 2;
      stroke-dasharray: 4 4;
    }

    /* Root hair */
    .root-body {
      fill: #fef08a;
      stroke: #ca8a04;
      stroke-width: 2.5;
    }

    /* Animated elements */
    @keyframes drinkWater {
      0% { transform: translate(0, 0); opacity: 0.9; }
      80% { opacity: 0.9; }
      100% { transform: translate(-30px, -45px) scale(0.4); opacity: 0; }
    }
    @keyframes drinkWater2 {
      0% { transform: translate(0, 0); opacity: 0.9; }
      80% { opacity: 0.9; }
      100% { transform: translate(25px, -40px) scale(0.4); opacity: 0; }
    }
    @keyframes breatheAir {
      0%, 100% { transform: translate(0, 0); opacity: 0.4; }
      50% { transform: translate(-8px, -12px); opacity: 0.9; }
    }

    .drop-flow-1 { animation: drinkWater 2.8s infinite linear; }
    .drop-flow-2 { animation: drinkWater2 3.2s infinite linear 1.2s; }
    .air-float { animation: breatheAir 3.5s infinite ease-in-out; }

    /* Active & hover outlines */
    .highlight {
      filter: drop-shadow(0 0 6px #2563eb);
    }

    /* Bottom Info Card */
    .info-bar {
      width: 100%;
      max-width: 580px;
      min-height: 42px;
      margin-top: 8px;
      padding: 8px 14px;
      background: #ffffff;
      border: 1.5px solid #e2e8f0;
      border-radius: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      font-size: 14px;
      font-weight: 600;
      color: #1e2945;
      box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    }
    .info-bar .badge {
      display: inline-block;
      margin-right: 6px;
      padding: 2px 8px;
      border-radius: 12px;
      font-size: 12px;
      color: #fff;
    }
    .badge-water { background: #0284c7; }
    .badge-air { background: #64748b; }
    .badge-mineral { background: #bda073; }
    .badge-humus { background: #5c3417; }
    .badge-root { background: #ca8a04; }

    /* Quick select buttons */
    .pill-group {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      justify-content: center;
      margin-bottom: 6px;
      max-width: 580px;
      width: 100%;
    }
    .pill {
      background: #f1f5f9;
      border: 1px solid #cbd5e1;
      padding: 4px 10px;
      border-radius: 16px;
      font-size: 12px;
      font-weight: 600;
      color: #475569;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 4px;
    }
    .pill.active {
      background: #1e2945;
      color: #ffffff;
      border-color: #1e2945;
    }
  </style>
</head>
<body>

  
  <div class="pill-group">
    <button class="pill" id="btn-water" onclick="selectZone('water')">💧 Water</button>
    <button class="pill" id="btn-air" onclick="selectZone('air')">💨 Air Space</button>
    <button class="pill" id="btn-root" onclick="selectZone('root')">🌱 Root Hair</button>
    <button class="pill" id="btn-mineral" onclick="selectZone('mineral')">🪨 Mineral</button>
    <button class="pill" id="btn-humus" onclick="selectZone('humus')">🍂 Humus</button>
  </div>

  
  <div class="diagram-wrap">
    <svg viewBox="0 0 540 380">
      <defs>
        
        <radialGradient id="grad-mineral" cx="35%" cy="35%" r="65%">
          <stop offset="0%" stop-color="#f5e5c9"/>
          <stop offset="100%" stop-color="#caa46c"/>
        </radialGradient>
        <radialGradient id="grad-humus" cx="30%" cy="30%" r="70%">
          <stop offset="0%" stop-color="#6a3d1b"/>
          <stop offset="100%" stop-color="#331705"/>
        </radialGradient>
        <linearGradient id="grad-root" x1="0%" y1="0%" x2="0%" y2="100%">
          <stop offset="0%" stop-color="#fef9c3"/>
          <stop offset="100%" stop-color="#fef08a"/>
        </linearGradient>
      </defs>

      
      
      <path class="grain-mineral" id="grain1" d="M -20 -20 Q 90 -10 130 50 Q 150 110 90 150 Q 20 170 -20 120 Z" fill="url(#grad-mineral)"/>
      
      <path class="grain-humus" id="humus1" d="M 400 -20 Q 560 -10 560 100 Q 520 170 420 140 Q 360 120 370 40 Z" fill="url(#grad-humus)"/>
      
      <path class="grain-humus-alt" id="humus2" d="M -20 230 Q 90 200 130 270 Q 150 350 70 400 Q -20 400 -20 300 Z" fill="url(#grad-humus)"/>
      
      <path class="grain-mineral-alt" id="grain2" d="M 370 240 Q 480 180 560 250 Q 560 400 440 400 Q 320 380 340 300 Z" fill="url(#grad-mineral)"/>
      
      <path class="grain-mineral" id="grain3" d="M 180 340 Q 280 310 330 360 Q 270 410 170 390 Z" fill="url(#grad-mineral)"/>

      
      <g id="zone-water" class="zone" onclick="selectZone('water')">
        
        <path class="water-film" d="M 100 130 C 130 160 125 210 115 240 C 135 225 145 170 120 135 Z"/>
        
        <path class="water-film" d="M 125 255 C 190 275 310 275 365 245 C 330 290 170 295 125 255 Z"/>
        
        <path class="water-film" d="M 395 135 C 370 175 365 215 375 245 C 390 215 390 170 410 140 Z"/>
        
        
        <g class="drop-flow-1">
          <circle cx="210" cy="275" r="7" fill="#0284c7" opacity="0.9"/>
          <circle cx="208" cy="273" r="2.5" fill="#bae6fd"/>
        </g>
        <g class="drop-flow-2">
          <circle cx="320" cy="265" r="6" fill="#0284c7" opacity="0.9"/>
          <circle cx="318" cy="263" r="2" fill="#bae6fd"/>
        </g>
      </g>

      
      <g id="zone-air" class="zone" onclick="selectZone('air')">
        <ellipse class="air-space" cx="265" cy="205" rx="105" ry="65"/>
        
        <g class="air-float">
          <circle cx="215" cy="180" r="14" fill="#ffffff" stroke="#94a3b8" stroke-width="1.5"/>
          <text x="215" y="184" text-anchor="middle" font-size="10" font-weight="700" fill="#64748b">O₂</text>
          
          <circle cx="315" cy="195" r="14" fill="#ffffff" stroke="#94a3b8" stroke-width="1.5"/>
          <text x="315" y="199" text-anchor="middle" font-size="10" font-weight="700" fill="#64748b">O₂</text>
        </g>
      </g>

      
      <g id="zone-root" class="zone" onclick="selectZone('root')">
        
        <path d="M 220 -10 L 300 -10 L 290 40 L 230 40 Z" fill="#eab308" stroke="#ca8a04" stroke-width="2"/>
        
        <path class="root-body" d="M 255 35 C 255 100 245 160 260 230 C 265 245 275 245 278 230 C 285 160 275 100 275 35 Z" fill="url(#grad-root)"/>
        
        <circle cx="269" cy="235" r="4.5" fill="#facc15"/>
      </g>

      
      <text x="50" y="80" font-size="12" font-weight="700" fill="#785324" pointer-events="none">MINERAL</text>
      <text x="440" y="70" font-size="12" font-weight="700" fill="#f5eedf" pointer-events="none">HUMUS</text>
      <text x="265" y="25" font-size="12" font-weight="800" fill="#854d0e" text-anchor="middle" pointer-events="none">ROOT</text>
      <text x="265" y="145" font-size="12" font-weight="800" fill="#475569" text-anchor="middle" pointer-events="none">AIR PORE</text>
      <text x="265" y="305" font-size="11" font-weight="800" fill="#0369a1" text-anchor="middle" pointer-events="none">WATER FILM</text>
    </svg>
  </div>

  
  <div class="info-bar" id="infoBar">
    Tap any part of the soil pore to explore
  </div>

  <script>
    const data = {
      water: {
        badge: 'Water',
        badgeClass: 'badge-water',
        text: 'Dissolves nutrients for root absorption'
      },
      air: {
        badge: 'Air Space',
        badgeClass: 'badge-air',
        text: 'Provides oxygen for roots to breathe'
      },
      root: {
        badge: 'Root Hair',
        badgeClass: 'badge-root',
        text: 'Drinks water & absorbs oxygen in pores'
      },
      mineral: {
        badge: 'Mineral Grain',
        badgeClass: 'badge-mineral',
        text: 'Crushed rock particles forming pore gaps'
      },
      humus: {
        badge: 'Humus',
        badgeClass: 'badge-humus',
        text: 'Decayed organic matter holding moisture'
      }
    };

    function selectZone(type) {
      // Update info text
      const item = data[type];
      const bar = document.getElementById('infoBar');
      bar.innerHTML = `<span class="badge ${item.badgeClass}">${item.badge}</span> ${item.text}`;

      // Update pills
      document.querySelectorAll('.pill').forEach(btn => btn.classList.remove('active'));
      const activeBtn = document.getElementById('btn-' + type);
      if (activeBtn) activeBtn.classList.add('active');

      // Update SVG highlights
      document.querySelectorAll('.zone, .grain-mineral, .grain-humus, .grain-mineral-alt, .grain-humus-alt').forEach(el => {
        el.classList.remove('highlight');
      });

      if (type === 'water') {
        document.getElementById('zone-water').classList.add('highlight');
      } else if (type === 'air') {
        document.getElementById('zone-air').classList.add('highlight');
      } else if (type === 'root') {
        document.getElementById('zone-root').classList.add('highlight');
      } else if (type === 'mineral') {
        document.getElementById('grain1').classList.add('highlight');
        document.getElementById('grain2').classList.add('highlight');
        document.getElementById('grain3').classList.add('highlight');
      } else if (type === 'humus') {
        document.getElementById('humus1').classList.add('highlight');
        document.getElementById('humus2').classList.add('highlight');
      }
    }

    // Attach click triggers to SVG elements directly
    document.getElementById('grain1').onclick = () => selectZone('mineral');
    document.getElementById('grain2').onclick = () => selectZone('mineral');
    document.getElementById('grain3').onclick = () => selectZone('mineral');
    document.getElementById('humus1').onclick = () => selectZone('humus');
    document.getElementById('humus2').onclick = () => selectZone('humus');

    // Initial state: water active
    selectZone('water');
  </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="1:1">
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }
    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      color: #1e2945;
      background: transparent;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 100%;
      padding: 12px;
      user-select: none;
    }
    .diagram-wrap {
      width: 100%;
      max-width: 360px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 12px;
    }
    .chart-container {
      position: relative;
      width: 210px;
      height: 210px;
    }
    svg.donut-chart {
      width: 100%;
      height: 100%;
      transform: rotate(-90deg);
      overflow: visible;
    }
    .slice {
      cursor: pointer;
      fill: transparent;
      stroke-width: 44;
      transition: stroke 0.2s ease, opacity 0.2s ease, filter 0.2s ease;
    }
    .slice:hover {
      filter: brightness(1.08);
    }
    .slice.dimmed {
      opacity: 0.45;
    }
    .slice.active {
      opacity: 1;
      filter: drop-shadow(0 0 4px rgba(30, 41, 69, 0.3));
    }
    .center-label {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      text-align: center;
      pointer-events: none;
    }
    .center-icon {
      font-size: 26px;
      line-height: 1;
      display: block;
    }
    .center-pct {
      font-size: 19px;
      font-weight: 800;
      color: #1e2945;
      line-height: 1.1;
    }
    .center-sub {
      font-size: 11px;
      font-weight: 600;
      color: #64748b;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .tabs-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 6px;
      width: 100%;
    }
    .tab-btn {
      background: #f8fafc;
      border: 1px solid rgba(0, 0, 0, 0);
      border-radius: 10px;
      padding: 8px 10px;
      font-size: 13px;
      font-weight: 600;
      color: #1e2945;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
      transition: background 0.2s ease, box-shadow 0.2s ease;
    }
    .tab-btn:hover {
      background: #f1f5f9;
    }
    .tab-btn.active {
      background: #ffffff;
      box-shadow: 0 0 0 2px var(--btn-color), 0 3px 8px rgba(0, 0, 0, 0.08);
    }
    .color-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      flex-shrink: 0;
    }
    .info-card {
      width: 100%;
      height: 48px;
      background: #f8fafc;
      border-radius: 10px;
      padding: 6px 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      font-size: 13px;
      font-weight: 500;
      color: #1e2945;
      border-left: 4px solid var(--accent-color, #c49a6c);
    }
  </style>
</head>
<body>
  <div class="diagram-wrap">
    <div class="chart-container">
      <svg class="donut-chart" viewBox="0 0 160 160">
        
        <circle id="slice-rock" class="slice active" cx="80" cy="80" r="54" stroke="#c49a6c"
          stroke-dasharray="152.68 339.29" stroke-dashoffset="0" />
        
        
        <circle id="slice-organic" class="slice" cx="80" cy="80" r="54" stroke="#4a2e18"
          stroke-dasharray="16.96 339.29" stroke-dashoffset="-152.68" />

        
        <circle id="slice-water" class="slice" cx="80" cy="80" r="54" stroke="#0284c7"
          stroke-dasharray="84.82 339.29" stroke-dashoffset="-169.65" />

        
        <circle id="slice-air" class="slice" cx="80" cy="80" r="54" stroke="#7dd3fc"
          stroke-dasharray="84.82 339.29" stroke-dashoffset="-254.47" />
      </svg>

      <div class="center-label">
        <span class="center-icon" id="centerIcon">🪨</span>
        <div class="center-pct" id="centerPct">45%</div>
        <div class="center-sub" id="centerSub">Rock</div>
      </div>
    </div>

    <div class="tabs-grid">
      <button class="tab-btn active" data-idx="0" style="--btn-color: #c49a6c;">
        <span class="color-dot" style="background:#c49a6c;"></span>
        <span>45% Rock</span>
      </button>
      <button class="tab-btn" data-idx="1" style="--btn-color: #4a2e18;">
        <span class="color-dot" style="background:#4a2e18;"></span>
        <span>5% Organic</span>
      </button>
      <button class="tab-btn" data-idx="2" style="--btn-color: #0284c7;">
        <span class="color-dot" style="background:#0284c7;"></span>
        <span>25% Water</span>
      </button>
      <button class="tab-btn" data-idx="3" style="--btn-color: #38bdf8;">
        <span class="color-dot" style="background:#7dd3fc;"></span>
        <span>25% Air</span>
      </button>
    </div>

    <div class="info-card" id="infoCard" style="--accent-color: #c49a6c;">
      Crushed stone, sand, silt & clay
    </div>
  </div>

  <script>
    const data = [
      {
        id: 'slice-rock',
        icon: '🪨',
        pct: '45%',
        sub: 'Rock',
        color: '#c49a6c',
        desc: 'Crushed stone, sand, silt & clay'
      },
      {
        id: 'slice-organic',
        icon: '🍂',
        pct: '5%',
        sub: 'Organic',
        color: '#4a2e18',
        desc: 'Decayed leaves, roots & organisms'
      },
      {
        id: 'slice-water',
        icon: '💧',
        pct: '25%',
        sub: 'Water',
        color: '#0284c7',
        desc: 'Moisture clinging to grains'
      },
      {
        id: 'slice-air',
        icon: '💨',
        pct: '25%',
        sub: 'Air',
        color: '#7dd3fc',
        desc: 'Gaps supplying oxygen to roots'
      }
    ];

    const slices = data.map(d => document.getElementById(d.id));
    const buttons = document.querySelectorAll('.tab-btn');
    const centerIcon = document.getElementById('centerIcon');
    const centerPct = document.getElementById('centerPct');
    const centerSub = document.getElementById('centerSub');
    const infoCard = document.getElementById('infoCard');

    function selectItem(idx) {
      const item = data[idx];
      
      slices.forEach((s, i) => {
        s.classList.toggle('active', i === idx);
        s.classList.toggle('dimmed', i !== idx);
      });

      buttons.forEach((b, i) => {
        b.classList.toggle('active', i === idx);
      });

      centerIcon.textContent = item.icon;
      centerPct.textContent = item.pct;
      centerSub.textContent = item.sub;
      
      infoCard.style.setProperty('--accent-color', item.color);
      infoCard.textContent = item.desc;
    }

    slices.forEach((slice, idx) => {
      slice.addEventListener('click', () => selectItem(idx));
      slice.addEventListener('mouseenter', () => selectItem(idx));
    });

    buttons.forEach((btn, idx) => {
      btn.addEventListener('click', () => selectItem(idx));
    });
  </script>
</body>
</html>

science.ks2.y1.t3.s3

Aligned learning resources

Related diagrams