<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Granite Mineral Breakdown</title>
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; }
    
    body {
      background: #f8f9fa;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      color: #1e2945;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      width: 100%;
      min-height: 100vh;
      padding: 10px 14px;
      user-select: none;
      gap: 8px;
    }

    /* Toggle control bar */
    .toggle-bar {
      display: flex;
      background: #e2e8f0;
      padding: 3px;
      border-radius: 999px;
      gap: 4px;
      z-index: 10;
    }

    .toggle-btn {
      border: none;
      background: transparent;
      padding: 6px 16px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 700;
      color: #64748b;
      cursor: pointer;
      transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
    }

    .toggle-btn.active {
      background: #ffffff;
      color: #1e2945;
      box-shadow: 0 2px 5px rgba(0,0,0,0.08);
    }

    .toggle-btn:focus-visible {
      outline: 2px solid #f59e0b;
    }

    /* Visual stage */
    .stage-container {
      position: relative;
      width: 100%;
      max-width: 480px;
      display: flex;
      justify-content: center;
      align-items: center;
    }

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

    /* Animation Elements */
    .callout-line {
      stroke: #f59e0b;
      stroke-width: 2.5;
      stroke-dasharray: 5 4;
      stroke-linecap: round;
      opacity: 0;
      transition: opacity 0.35s ease;
    }

    .callout-card {
      opacity: 0;
      transform: scale(0.9);
      transform-origin: center;
      transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    }

    .lens-ring {
      opacity: 0;
      transform: scale(0.8);
      transform-origin: 240px 145px;
      transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    }

    .whole-rock-info {
      opacity: 1;
      transition: opacity 0.3s ease;
    }

    /* Zoomed state */
    .zoomed .callout-line {
      opacity: 1;
    }
    .zoomed .callout-card {
      opacity: 1;
      transform: scale(1);
    }
    .zoomed .lens-ring {
      opacity: 1;
      transform: scale(1);
    }
    .zoomed .whole-rock-info {
      opacity: 0;
      pointer-events: none;
    }

    .zoomed #card-feldspar { transition-delay: 0.04s; }
    .zoomed #card-quartz   { transition-delay: 0.12s; }
    .zoomed #card-mica     { transition-delay: 0.2s; }

    /* SVG Text Styles */
    .rock-label {
      font-size: 15px;
      font-weight: 700;
      fill: #1e2945;
      text-anchor: middle;
    }
    .sub-label {
      font-size: 10px;
      font-weight: 700;
      fill: #64748b;
      letter-spacing: 0.8px;
      text-anchor: middle;
    }
    .mineral-name {
      font-size: 13px;
      font-weight: 700;
      fill: #1e2945;
      text-anchor: middle;
    }
    .mineral-color {
      font-size: 10px;
      font-weight: 600;
      fill: #64748b;
      text-anchor: middle;
    }
    .info-text {
      font-size: 11px;
      font-weight: 600;
      fill: #64748b;
      text-anchor: middle;
    }

    .rock-interactive {
      cursor: pointer;
    }
    .rock-interactive:hover polygon:first-child {
      stroke: #f59e0b;
    }

    /* Info bar below */
    .caption-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 600;
      color: #475569;
      background: #ffffff;
      padding: 5px 14px;
      border-radius: 999px;
      border: 1px solid #e2e8f0;
      text-align: center;
    }
    .dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: #f59e0b;
      display: inline-block;
    }
  </style>
</head>
<body>

  
  <div class="toggle-bar">
    <button class="toggle-btn active" id="btnWhole" aria-label="Show whole rock view">Whole Rock</button>
    <button class="toggle-btn" id="btnZoom" aria-label="Show zoomed in mineral breakdown">Zoomed In</button>
  </div>

  
  <div class="stage-container">
    <svg viewBox="0 0 480 300" id="stageSvg">
      <defs>
        
        <filter id="cardShadow" x="-15%" y="-15%" width="130%" height="130%">
          <feDropShadow dx="0" dy="2" stdDeviation="3" flood-opacity="0.09" />
        </filter>
        
        <clipPath id="rockClip">
          <polygon points="175,100 230,75 300,95 325,148 295,200 220,215 160,182 155,135" />
        </clipPath>
      </defs>

      
      
      <line class="callout-line" x1="180" y1="125" x2="105" y2="78" />
      
      <line class="callout-line" x1="290" y1="115" x2="375" y2="78" />
      
      <line class="callout-line" x1="270" y1="182" x2="375" y2="218" />

      
      <g id="graniteRock" class="rock-interactive" role="button" tabindex="0" aria-label="Granite rock specimen. Click to toggle zoom.">
        
        <polygon points="175,100 230,75 300,95 325,148 295,200 220,215 160,182 155,135" 
                 fill="#e2e8f0" stroke="#cbd5e1" stroke-width="3" stroke-linejoin="round" />
        
        
        <g clip-path="url(#rockClip)">
          
          <polygon points="180,95 205,105 195,125 170,115" fill="#fca5a5" />
          <polygon points="235,80 260,90 250,110 225,100" fill="#fca5a5" />
          <polygon points="210,130 240,135 230,165 200,155" fill="#f87171" />
          <polygon points="265,120 290,130 280,155 255,140" fill="#fca5a5" />
          <polygon points="170,140 195,150 185,175 160,165" fill="#f87171" />
          <polygon points="220,172 250,177 240,202 210,197" fill="#fca5a5" />
          <polygon points="275,162 305,167 295,192 265,187" fill="#f87171" />
          <polygon points="180,182 205,187 195,212 170,202" fill="#fca5a5" />

          
          <polygon points="205,90 225,105 215,125 195,110" fill="#94a3b8" />
          <polygon points="260,85 285,100 270,120 245,105" fill="#cbd5e1" />
          <polygon points="175,125 200,130 190,155 165,145" fill="#94a3b8" />
          <polygon points="240,135 265,140 255,165 230,155" fill="#cbd5e1" />
          <polygon points="280,130 310,140 300,165 270,155" fill="#94a3b8" />
          <polygon points="195,152 220,157 210,182 185,172" fill="#cbd5e1" />
          <polygon points="250,177 275,182 265,207 240,197" fill="#94a3b8" />

          
          <ellipse cx="190" cy="110" rx="7" ry="3" fill="#1e293b" transform="rotate(25 190 110)" />
          <ellipse cx="245" cy="100" rx="9" ry="4" fill="#0f172a" transform="rotate(-30 245 100)" />
          <ellipse cx="225" cy="130" rx="8" ry="3" fill="#1e293b" transform="rotate(45 225 130)" />
          <ellipse cx="280" cy="120" rx="7" ry="3.5" fill="#0f172a" transform="rotate(15 280 120)" />
          <ellipse cx="180" cy="155" rx="8" ry="3" fill="#1e293b" transform="rotate(-20 180 155)" />
          <ellipse cx="260" cy="160" rx="9" ry="4" fill="#0f172a" transform="rotate(35 260 160)" />
          <ellipse cx="215" cy="170" rx="6" ry="3" fill="#1e293b" transform="rotate(-15 215 170)" />
          <ellipse cx="285" cy="180" rx="8" ry="3.5" fill="#0f172a" transform="rotate(50 285 180)" />
          <ellipse cx="195" cy="195" rx="7" ry="3" fill="#1e293b" transform="rotate(10 195 195)" />
          <ellipse cx="240" cy="200" rx="8" ry="3" fill="#0f172a" transform="rotate(-40 240 200)" />
        </g>

        
        <g id="rockTitle">
          <rect x="190" y="228" width="100" height="34" rx="8" fill="#ffffff" filter="url(#cardShadow)" />
          <text x="240" y="244" class="rock-label">Granite</text>
          <text x="240" y="256" class="sub-label">ROCK</text>
        </g>
      </g>

      
      <g class="whole-rock-info" pointer-events="none">
        <text x="240" y="285" class="info-text">✨ Tap rock or select "Zoomed In" to inspect minerals</text>
      </g>

      
      <g class="lens-ring" pointer-events="none">
        <circle cx="240" cy="145" r="72" fill="none" stroke="#f59e0b" stroke-width="2.5" />
        <circle cx="240" cy="145" r="69.5" fill="#f59e0b" fill-opacity="0.05" />
        
        <line x1="240" y1="67" x2="240" y2="77" stroke="#f59e0b" stroke-width="2" />
        <line x1="240" y1="213" x2="240" y2="223" stroke="#f59e0b" stroke-width="2" />
        <line x1="162" y1="145" x2="172" y2="145" stroke="#f59e0b" stroke-width="2" />
        <line x1="308" y1="145" x2="318" y2="145" stroke="#f59e0b" stroke-width="2" />
      </g>

      
      <g class="callout-card" id="card-feldspar">
        <rect x="20" y="42" width="115" height="84" rx="10" fill="#ffffff" stroke="#fca5a5" stroke-width="1.5" filter="url(#cardShadow)" />
        
        <polygon points="62,56 88,51 97,71 70,77 57,66" fill="#fca5a5" stroke="#f87171" stroke-width="1.5" stroke-linejoin="round" />
        <polygon points="70,53 84,59 77,73 64,66" fill="#f87171" opacity="0.4" />
        <text x="77" y="98" class="mineral-name">Feldspar</text>
        <text x="77" y="112" class="mineral-color">Pink Mineral</text>
      </g>

      
      <g class="callout-card" id="card-quartz">
        <rect x="345" y="42" width="115" height="84" rx="10" fill="#ffffff" stroke="#cbd5e1" stroke-width="1.5" filter="url(#cardShadow)" />
        
        <polygon points="385,55 412,50 421,70 398,79 380,67" fill="#e2e8f0" stroke="#94a3b8" stroke-width="1.5" stroke-linejoin="round" />
        <polygon points="393,52 407,59 402,74 389,68" fill="#cbd5e1" />
        <text x="402" y="98" class="mineral-name">Quartz</text>
        <text x="402" y="112" class="mineral-color">Gray Mineral</text>
      </g>

      
      <g class="callout-card" id="card-mica">
        <rect x="345" y="172" width="115" height="84" rx="10" fill="#ffffff" stroke="#94a3b8" stroke-width="1.5" filter="url(#cardShadow)" />
        
        <polygon points="380,190 412,184 425,201 394,208 376,199" fill="#334155" stroke="#0f172a" stroke-width="1.5" stroke-linejoin="round" />
        <polygon points="388,187 415,193 407,204 384,198" fill="#0f172a" />
        <line x1="392" y1="192" x2="402" y2="195" stroke="#ffffff" stroke-width="1.5" stroke-linecap="round" />
        <text x="402" y="228" class="mineral-name">Mica</text>
        <text x="402" y="242" class="mineral-color">Black Mineral</text>
      </g>
    </svg>
  </div>

  
  <div class="caption-pill">
    <span class="dot"></span>
    <span>A <strong>rock</strong> is a natural mixture of individual <strong>minerals</strong>.</span>
  </div>

  <script>
    const stageContainer = document.querySelector('.stage-container');
    const btnWhole = document.getElementById('btnWhole');
    const btnZoom = document.getElementById('btnZoom');
    const graniteRock = document.getElementById('graniteRock');

    function setZoom(isZoomed) {
      if (isZoomed) {
        stageContainer.classList.add('zoomed');
        btnZoom.classList.add('active');
        btnWhole.classList.remove('active');
      } else {
        stageContainer.classList.remove('zoomed');
        btnWhole.classList.add('active');
        btnZoom.classList.remove('active');
      }
    }

    btnWhole.addEventListener('click', () => setZoom(false));
    btnZoom.addEventListener('click', () => setZoom(true));
    
    graniteRock.addEventListener('click', () => {
      const isZoomed = stageContainer.classList.contains('zoomed');
      setZoom(!isZoomed);
    });

    graniteRock.addEventListener('keydown', (e) => {
      if (e.key === 'Enter' || e.key === ' ') {
        e.preventDefault();
        const isZoomed = stageContainer.classList.contains('zoomed');
        setZoom(!isZoomed);
      }
    });
  </script>
</body>
</html>

How Are Rocks, Soils and Minerals Different?

<!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;
      -webkit-tap-highlight-color: transparent;
      user-select: none;
    }

    body {
      background: #f8f9fa;
      color: #1e2945;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: space-between;
      min-height: 100%;
      padding: 12px;
      gap: 10px;
    }

    .main-stage {
      display: flex;
      flex-direction: row;
      align-items: center;
      justify-content: center;
      gap: 16px;
      width: 100%;
      max-width: 540px;
      flex: 1;
    }

    .visual-box {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      max-width: 220px;
    }

    svg {
      width: 100%;
      height: auto;
      max-height: 190px;
      display: block;
      overflow: visible;
    }

    .wedge, .jar-layer {
      cursor: pointer;
      transition: opacity 0.25s ease, filter 0.25s ease;
    }

    .wedge:hover, .jar-layer:hover {
      filter: brightness(1.08);
    }

    .dimmed {
      opacity: 0.3;
    }

    .active-slice {
      opacity: 1 !important;
      filter: drop-shadow(0 0 5px rgba(16, 185, 129, 0.45));
    }

    .info-card {
      width: 100%;
      max-width: 480px;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 12px;
      padding: 8px 14px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 48px;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
      transition: border-color 0.2s ease;
    }

    .info-left {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .info-icon {
      font-size: 22px;
      line-height: 1;
    }

    .info-title {
      font-size: 15px;
      font-weight: 700;
      color: #1e2945;
    }

    .info-desc {
      font-size: 13px;
      color: #64748b;
    }

    .info-pct {
      font-size: 20px;
      font-weight: 800;
      color: #10b981;
      padding-left: 8px;
    }

    .nav-tabs {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 6px;
      width: 100%;
      max-width: 480px;
    }

    .tab-btn {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      padding: 6px 4px;
      font-size: 13px;
      font-weight: 600;
      color: #1e2945;
      cursor: pointer;
      text-align: center;
      transition: all 0.2s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 2px;
    }

    .tab-btn.active {
      border-color: #10b981;
      background: #ecfdf5;
      color: #065f46;
      box-shadow: 0 0 0 1px #10b981;
    }

    @media (max-width: 420px) {
      .main-stage {
        gap: 8px;
      }
      .visual-box {
        max-width: 160px;
      }
      svg {
        max-height: 160px;
      }
      .tab-btn {
        font-size: 12px;
        padding: 5px 2px;
      }
      .info-title {
        font-size: 14px;
      }
      .info-pct {
        font-size: 17px;
      }
    }
  </style>
</head>
<body>

  <div class="main-stage">
    
    <div class="visual-box">
      <svg viewBox="0 0 200 200" aria-label="Soil composition pie chart">
        
        <path id="pie-minerals" class="wedge" d="M 100 100 L 69.1 195.1 A 100 100 0 0 1 0 100 Z" fill="#d97706" />
        
        <path id="pie-water" class="wedge" d="M 100 100 L 195.1 130.9 A 100 100 0 0 1 69.1 195.1 Z" fill="#3b82f6" />
        
        <path id="pie-air" class="wedge" d="M 100 100 L 130.9 4.9 A 100 100 0 0 1 195.1 130.9 Z" fill="#93c5fd" />
        
        <path id="pie-organic" class="wedge" d="M 100 100 L 100 0 A 100 100 0 0 1 130.9 4.9 Z" fill="#10b981" />
        <circle cx="100" cy="100" r="32" fill="#f8f9fa" />
        <text x="100" y="104" text-anchor="middle" font-size="12" font-weight="700" fill="#1e2945">SOIL</text>
      </svg>
    </div>

    
    <div class="visual-box">
      <svg viewBox="0 0 140 200" aria-label="Soil profile jar">
        
        <rect x="42" y="8" width="56" height="8" rx="3" fill="#cbd5e1" />
        <rect x="36" y="16" width="68" height="6" rx="2" fill="#94a3b8" />
        
        
        <rect x="20" y="22" width="100" height="170" rx="14" fill="#ffffff" stroke="#94a3b8" stroke-width="3" />
        <clipPath id="jar-clip">
          <rect x="22" y="24" width="96" height="166" rx="12" />
        </clipPath>

        
        <g clip-path="url(#jar-clip)">
          
          <g id="jar-organic" class="jar-layer">
            <rect x="20" y="24" width="100" height="12" fill="#10b981" />
            <circle cx="45" cy="30" r="1.5" fill="#047857" />
            <circle cx="70" cy="29" r="2" fill="#047857" />
            <circle cx="95" cy="31" r="1.5" fill="#047857" />
          </g>

          
          <g id="jar-air" class="jar-layer">
            <rect x="20" y="36" width="100" height="40" fill="#e0f2fe" />
            <circle cx="40" cy="48" r="4" fill="#bae6fd" />
            <circle cx="75" cy="54" r="6" fill="#bae6fd" />
            <circle cx="100" cy="46" r="3" fill="#bae6fd" />
            <circle cx="58" cy="66" r="5" fill="#bae6fd" />
            <circle cx="90" cy="68" r="4" fill="#bae6fd" />
          </g>

          
          <g id="jar-water" class="jar-layer">
            <rect x="20" y="76" width="100" height="40" fill="#60a5fa" />
            <path d="M 20 86 Q 45 82 70 86 T 120 86 L 120 116 L 20 116 Z" fill="#3b82f6" opacity="0.6" />
          </g>

          
          <g id="jar-minerals" class="jar-layer">
            <rect x="20" y="116" width="100" height="74" fill="#d97706" />
            
            <polygon points="35,135 45,130 48,142 38,146" fill="#b45309" />
            <polygon points="75,126 88,124 92,136 80,140" fill="#92400e" />
            <circle cx="55" cy="155" r="5" fill="#78350f" />
            <polygon points="85,160 100,154 104,170 88,175" fill="#b45309" />
            <circle cx="40" cy="172" r="6" fill="#92400e" />
            <circle cx="68" cy="175" r="4" fill="#78350f" />
          </g>
        </g>
      </svg>
    </div>
  </div>

  
  <div class="info-card" id="infoCard">
    <div class="info-left">
      <span class="info-icon" id="infoIcon">🪨</span>
      <div>
        <div class="info-title" id="infoTitle">Rock Bits</div>
        <div class="info-desc" id="infoDesc">Sand, silt, clay</div>
      </div>
    </div>
    <div class="info-pct" id="infoPct">45%</div>
  </div>

  
  <div class="nav-tabs">
    <button class="tab-btn active" data-key="minerals">
      <span>🪨 Rocks</span>
      <small>45%</small>
    </button>
    <button class="tab-btn" data-key="air">
      <span>💨 Air</span>
      <small>25%</small>
    </button>
    <button class="tab-btn" data-key="water">
      <span>💧 Water</span>
      <small>25%</small>
    </button>
    <button class="tab-btn" data-key="organic">
      <span>🌱 Organics</span>
      <small>5%</small>
    </button>
  </div>

  <script>
    const data = {
      minerals: {
        title: 'Rock Bits',
        desc: 'Sand, silt, and clay',
        pct: '45%',
        icon: '🪨',
        color: '#d97706'
      },
      air: {
        title: 'Air',
        desc: 'Gaps between soil particles',
        pct: '25%',
        icon: '💨',
        color: '#60a5fa'
      },
      water: {
        title: 'Water',
        desc: 'Moisture clinging to grains',
        pct: '25%',
        icon: '💧',
        color: '#2563eb'
      },
      organic: {
        title: 'Organic Matter',
        desc: 'Humus, dead leaves, worms',
        pct: '5%',
        icon: '🌱',
        color: '#10b981'
      }
    };

    const keys = ['minerals', 'air', 'water', 'organic'];
    let currentKey = 'minerals';

    const infoTitle = document.getElementById('infoTitle');
    const infoDesc = document.getElementById('infoDesc');
    const infoPct = document.getElementById('infoPct');
    const infoIcon = document.getElementById('infoIcon');
    const tabs = document.querySelectorAll('.tab-btn');

    function selectLayer(key) {
      if (!data[key]) return;
      currentKey = key;
      const item = data[key];

      infoTitle.textContent = item.title;
      infoDesc.textContent = item.desc;
      infoPct.textContent = item.pct;
      infoPct.style.color = item.color;
      infoIcon.textContent = item.icon;

      // Update tabs
      tabs.forEach(tab => {
        tab.classList.toggle('active', tab.dataset.key === key);
      });

      // Highlight pie & jar
      keys.forEach(k => {
        const pieEl = document.getElementById('pie-' + k);
        const jarEl = document.getElementById('jar-' + k);

        if (k === key) {
          pieEl.classList.add('active-slice');
          pieEl.classList.remove('dimmed');
          jarEl.classList.add('active-slice');
          jarEl.classList.remove('dimmed');
        } else {
          pieEl.classList.remove('active-slice');
          pieEl.classList.add('dimmed');
          jarEl.classList.remove('active-slice');
          jarEl.classList.add('dimmed');
        }
      });
    }

    // Attach click/touch events to tabs
    tabs.forEach(tab => {
      tab.addEventListener('click', () => selectLayer(tab.dataset.key));
    });

    // Attach click/hover to SVG slices & jar layers
    keys.forEach(k => {
      const pieEl = document.getElementById('pie-' + k);
      const jarEl = document.getElementById('jar-' + k);

      [pieEl, jarEl].forEach(el => {
        if (!el) return;
        el.addEventListener('click', () => selectLayer(k));
        el.addEventListener('mouseenter', () => selectLayer(k));
      });
    });

    // Initialize default view
    selectLayer('minerals');
  </script>
</body>
</html>

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

    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      color: #1e2945;
      background: transparent;
      padding: 10px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      user-select: none;
      -webkit-user-select: none;
    }

    .columns-row {
      display: grid;
      grid-template-columns: 1fr auto 1fr auto 1fr;
      align-items: center;
      gap: 6px;
      width: 100%;
    }

    .flow-arrow {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: #94a3b8;
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      text-align: center;
      line-height: 1.1;
      padding: 0 2px;
    }

    .flow-arrow .arrow-symbol {
      font-size: 18px;
      color: #64748b;
      margin-top: 2px;
      transition: transform 0.3s ease, color 0.3s ease;
    }

    .stage-card {
      background: #f8fafc;
      border: 2px solid #e2e8f0;
      border-radius: 12px;
      padding: 10px 8px 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      cursor: pointer;
      transition: border-color 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
      position: relative;
    }

    .stage-card:focus-visible {
      outline: 2px solid #0284c7;
    }

    .stage-card.active-mineral {
      border-color: #0284c7;
      background: #f0f9ff;
      box-shadow: 0 4px 14px rgba(2, 132, 199, 0.18);
    }

    .stage-card.active-rock {
      border-color: #475569;
      background: #f8fafc;
      box-shadow: 0 4px 14px rgba(71, 85, 105, 0.2);
    }

    .stage-card.active-soil {
      border-color: #16a34a;
      background: #f0fdf4;
      box-shadow: 0 4px 14px rgba(22, 163, 74, 0.18);
    }

    .stage-num {
      font-size: 11px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.6px;
      margin-bottom: 2px;
    }

    .card-mineral .stage-num { color: #0284c7; }
    .card-rock .stage-num { color: #475569; }
    .card-soil .stage-num { color: #16a34a; }

    .stage-title {
      font-size: 16px;
      font-weight: 800;
      color: #0f172a;
      line-height: 1.2;
    }

    .visual-box {
      width: 100%;
      height: 90px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 6px 0;
    }

    .badge {
      display: inline-block;
      font-size: 11px;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 999px;
      margin-bottom: 8px;
      line-height: 1.2;
    }

    .card-mineral .badge {
      background: #e0f2fe;
      color: #0369a1;
      border: 1px solid #bae6fd;
    }

    .card-rock .badge {
      background: #f1f5f9;
      color: #334155;
      border: 1px solid #cbd5e1;
    }

    .card-soil .badge {
      background: #dcfce7;
      color: #15803d;
      border: 1px solid #bbf7d0;
    }

    .feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 3px;
      font-size: 11px;
      font-weight: 600;
      color: #475569;
      width: 100%;
    }

    .feature-list li {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 4px;
      white-space: nowrap;
    }

    .bullet {
      width: 5px;
      height: 5px;
      border-radius: 50%;
      display: inline-block;
      flex-shrink: 0;
    }

    .card-mineral .bullet { background: #0284c7; }
    .card-rock .bullet { background: #64748b; }
    .card-soil .bullet { background: #16a34a; }

    .examples-box {
      margin-top: 8px;
      padding-top: 6px;
      border-top: 1px dashed #cbd5e1;
      font-size: 11px;
      font-weight: 600;
      color: #64748b;
      width: 100%;
    }

    .examples-box strong {
      color: #1e2945;
      font-weight: 700;
    }

    /* Equation strip */
    .equation-bar {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
      gap: 6px;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 10px;
      padding: 8px 10px;
      font-size: 12px;
      font-weight: 700;
      color: #334155;
    }

    .eq-chip {
      padding: 3px 8px;
      border-radius: 6px;
      font-size: 11px;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .eq-mineral { background: #e0f2fe; color: #0369a1; border: 1px solid #bae6fd; }
    .eq-process { background: #fff; color: #64748b; border: 1px dashed #cbd5e1; font-weight: 600; }
    .eq-rock { background: #f1f5f9; color: #334155; border: 1px solid #cbd5e1; }
    .eq-soil { background: #dcfce7; color: #15803d; border: 1px solid #bbf7d0; }
    .eq-op { color: #94a3b8; font-weight: 900; font-size: 13px; }

    .chip-active {
      box-shadow: 0 0 0 2px #0f172a;
    }

    @media (max-width: 520px) {
      .columns-row {
        grid-template-columns: 1fr;
        gap: 8px;
      }
      .flow-arrow {
        flex-direction: row;
        gap: 6px;
        padding: 2px 0;
      }
      .flow-arrow .arrow-symbol {
        transform: rotate(90deg);
        margin-top: 0;
      }
      .visual-box {
        height: 70px;
      }
    }
  </style>
</head>
<body>

  <div class="columns-row">
    
    <div class="stage-card card-mineral active-mineral" id="card-1" tabindex="0">
      <div class="stage-num">Step 1</div>
      <div class="stage-title">Mineral</div>
      
      <div class="visual-box">
        <svg viewBox="0 0 100 90" width="80" height="76" style="filter: drop-shadow(0 4px 6px rgba(2,132,199,0.25));">
          
          <polygon points="50,5 78,32 50,42 22,32" fill="#bae6fd" stroke="#0284c7" stroke-width="1.5" />
          <polygon points="22,32 50,42 50,82 22,66" fill="#38bdf8" stroke="#0284c7" stroke-width="1.5" />
          <polygon points="78,32 50,42 50,82 78,66" fill="#0284c7" stroke="#0369a1" stroke-width="1.5" />
          <polygon points="50,5 50,42 78,32" fill="#e0f2fe" opacity="0.6" />
          
          <polygon points="46,20 54,20 50,14" fill="#ffffff" opacity="0.8" />
          <line x1="84" y1="18" x2="88" y2="18" stroke="#38bdf8" stroke-width="2" stroke-linecap="round" />
          <line x1="86" y1="16" x2="86" y2="20" stroke="#38bdf8" stroke-width="2" stroke-linecap="round" />
        </svg>
      </div>

      <div class="badge">Pure Crystal</div>

      <ul class="feature-list">
        <li><span class="bullet"></span> 1 Chemical recipe</li>
        <li><span class="bullet"></span> Uniform crystal lattice</li>
        <li><span class="bullet"></span> Non-living origin</li>
      </ul>

      <div class="examples-box">
        Quartz, Diamond, Calcite
      </div>
    </div>

    
    <div class="flow-arrow" id="arrow-1">
      <span>Combine</span>
      <span class="arrow-symbol">→</span>
    </div>

    
    <div class="stage-card card-rock" id="card-2" tabindex="0">
      <div class="stage-num">Step 2</div>
      <div class="stage-title">Rock</div>

      <div class="visual-box">
        <svg viewBox="0 0 100 90" width="84" height="76" style="filter: drop-shadow(0 4px 6px rgba(71,85,105,0.25));">
          
          <path d="M20,62 L15,38 L38,15 L72,18 L88,40 L82,68 L52,80 Z" fill="#cbd5e1" stroke="#475569" stroke-width="2" stroke-linejoin="round" />
          
          <polygon points="38,15 55,22 45,38 25,30" fill="#7dd3fc" stroke="#0284c7" stroke-width="1.2" />
          
          <polygon points="55,22 72,18 84,35 62,44 45,38" fill="#fcd34d" stroke="#d97706" stroke-width="1.2" />
          
          <polygon points="25,30 45,38 40,56 18,52 15,38" fill="#334155" stroke="#1e2945" stroke-width="1.2" />
          
          <polygon points="62,44 84,35 88,40 82,68 60,62" fill="#64748b" stroke="#334155" stroke-width="1.2" />
          <polygon points="40,56 60,62 52,80 20,62 18,52" fill="#94a3b8" stroke="#475569" stroke-width="1.2" />
          
          <circle cx="32" cy="24" r="1.5" fill="#fff" opacity="0.8" />
          <circle cx="68" cy="30" r="1.5" fill="#78350f" opacity="0.6" />
        </svg>
      </div>

      <div class="badge">Mineral Mixture</div>

      <ul class="feature-list">
        <li><span class="bullet"></span> Multiple grains fused</li>
        <li><span class="bullet"></span> Solid & hard mass</li>
        <li><span class="bullet"></span> No organic life</li>
      </ul>

      <div class="examples-box">
        Granite, Basalt, Sandstone
      </div>
    </div>

    
    <div class="flow-arrow" id="arrow-2">
      <span>Weather & Mix</span>
      <span class="arrow-symbol">→</span>
    </div>

    
    <div class="stage-card card-soil" id="card-3" tabindex="0">
      <div class="stage-num">Step 3</div>
      <div class="stage-title">Soil</div>

      <div class="visual-box">
        <svg viewBox="0 0 100 90" width="84" height="76" style="filter: drop-shadow(0 4px 6px rgba(22,163,74,0.2));">
          
          <rect x="12" y="32" width="76" height="48" rx="8" fill="#78350f" stroke="#451a03" stroke-width="1.5" />
          
          <rect x="12" y="32" width="76" height="18" rx="6" fill="#451a03" />
          
          
          <polygon points="20,62 26,58 24,66" fill="#cbd5e1" />
          <polygon points="42,70 48,68 46,74" fill="#fcd34d" />
          <polygon points="68,60 74,58 72,66" fill="#7dd3fc" />
          <circle cx="34" cy="42" r="2.5" fill="#94a3b8" />
          <circle cx="62" cy="44" r="2" fill="#94a3b8" />

          
          <circle cx="54" cy="56" r="3.5" fill="#38bdf8" opacity="0.8" />
          <circle cx="30" cy="72" r="2.5" fill="#ffffff" opacity="0.6" stroke="#94a3b8" stroke-width="0.8" />

          
          <path d="M50,34 Q50,20 50,14" fill="none" stroke="#16a34a" stroke-width="2.5" stroke-linecap="round" />
          
          <path d="M50,22 Q38,18 36,10 Q46,12 50,20" fill="#22c55e" stroke="#15803d" stroke-width="1" />
          
          <path d="M50,18 Q62,14 64,6 Q54,8 50,16" fill="#4ade80" stroke="#15803d" stroke-width="1" />
          
          
          <path d="M50,34 Q46,45 42,50" fill="none" stroke="#fde047" stroke-width="1.2" stroke-linecap="round" />
          <path d="M50,34 Q54,42 58,48" fill="none" stroke="#fde047" stroke-width="1.2" stroke-linecap="round" />
        </svg>
      </div>

      <div class="badge">Living Mixture</div>

      <ul class="feature-list">
        <li><span class="bullet"></span> Crumbled rock + humus</li>
        <li><span class="bullet"></span> Loose & porous texture</li>
        <li><span class="bullet"></span> Air, water & microbes</li>
      </ul>

      <div class="examples-box">
        Topsoil, Loam, Compost
      </div>
    </div>
  </div>

  
  <div class="equation-bar">
    <span class="eq-chip eq-mineral" id="chip-mineral">Pure Minerals</span>
    <span class="eq-op">+</span>
    <span class="eq-chip eq-process">Heat / Pressure</span>
    <span class="eq-op">=</span>
    <span class="eq-chip eq-rock" id="chip-rock">Rocks</span>
    <span class="eq-op">→</span>
    <span class="eq-chip eq-process">Weathering</span>
    <span class="eq-op">+</span>
    <span class="eq-chip eq-process">Organics & Water</span>
    <span class="eq-op">=</span>
    <span class="eq-chip eq-soil" id="chip-soil">Soil</span>
  </div>

  <script>
    const cards = [
      { el: document.getElementById('card-1'), chip: document.getElementById('chip-mineral'), activeClass: 'active-mineral' },
      { el: document.getElementById('card-2'), chip: document.getElementById('chip-rock'), activeClass: 'active-rock' },
      { el: document.getElementById('card-3'), chip: document.getElementById('chip-soil'), activeClass: 'active-soil' }
    ];

    function selectStage(index) {
      cards.forEach((item, i) => {
        if (i === index) {
          item.el.classList.add(item.activeClass);
          item.chip.classList.add('chip-active');
        } else {
          item.el.classList.remove(item.activeClass);
          item.chip.classList.remove('chip-active');
        }
      });
    }

    cards.forEach((item, index) => {
      item.el.addEventListener('click', () => selectStage(index));
      item.el.addEventListener('keydown', (e) => {
        if (e.key === 'Enter' || e.key === ' ') {
          e.preventDefault();
          selectStage(index);
        }
      });
    });
  </script>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      color: #1e2945;
      background: transparent;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 12px;
      min-height: 100%;
    }

    /* Tab controls */
    .tab-bar {
      display: flex;
      gap: 8px;
      width: 100%;
      max-width: 440px;
      margin-bottom: 12px;
    }
    .tab-btn {
      flex: 1;
      border: 1px solid #d1d5db;
      background: #ffffff;
      color: #1e2945;
      padding: 8px 6px;
      border-radius: 8px;
      font-size: 13.5px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      transition: background-color 0.2s, box-shadow 0.2s, border-color 0.2s, color 0.2s;
    }
    .tab-btn.active {
      border-color: #22b7ff;
      background: #f0f9ff;
      color: #0284c7;
      box-shadow: 0 0 0 2px rgba(34, 183, 255, 0.3);
    }

    /* Main Showcase Area */
    .showcase {
      width: 100%;
      max-width: 440px;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .mineral-stage {
      width: 140px;
      height: 140px;
      position: relative;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .mineral-svg {
      width: 130px;
      height: 130px;
      position: absolute;
      transition: opacity 0.3s ease, transform 0.3s ease;
      opacity: 0;
      transform: scale(0.92);
      pointer-events: none;
    }
    .mineral-svg.active {
      opacity: 1;
      transform: scale(1);
      pointer-events: auto;
    }

    /* Trait checklist */
    .traits-list {
      width: 100%;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .trait-item {
      display: flex;
      align-items: center;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      padding: 9px 12px;
      gap: 10px;
    }
    .trait-num {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: #0ea5e9;
      color: #ffffff;
      font-size: 12px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .trait-text {
      font-size: 13.5px;
      font-weight: 600;
      color: #1e2945;
    }
    .trait-sub {
      margin-left: auto;
      font-size: 12.5px;
      color: #334155;
      font-weight: 600;
      text-align: right;
    }

    @media (max-width: 380px) {
      .tab-btn {
        font-size: 12px;
        padding: 6px 4px;
      }
      .trait-text {
        font-size: 12.5px;
      }
      .trait-sub {
        font-size: 11.5px;
      }
    }
  </style>
</head>
<body>

  
  <div class="tab-bar">
    <button class="tab-btn active" data-mineral="quartz">
      <span>✦ Quartz</span>
    </button>
    <button class="tab-btn" data-mineral="gold">
      <span>● Gold</span>
    </button>
    <button class="tab-btn" data-mineral="feldspar">
      <span>■ Feldspar</span>
    </button>
  </div>

  
  <div class="showcase">
    <div class="mineral-stage">
      
      <svg id="svg-quartz" class="mineral-svg active" viewBox="0 0 140 140">
        <defs>
          <linearGradient id="qGrad1" x1="0%" y1="0%" x2="100%" y2="100%">
            <stop offset="0%" stop-color="#ffffff"/>
            <stop offset="100%" stop-color="#bae6fd"/>
          </linearGradient>
          <linearGradient id="qGrad2" x1="0%" y1="0%" x2="100%" y2="100%">
            <stop offset="0%" stop-color="#7dd3fc"/>
            <stop offset="100%" stop-color="#38bdf8"/>
          </linearGradient>
          <linearGradient id="qGrad3" x1="0%" y1="0%" x2="100%" y2="100%">
            <stop offset="0%" stop-color="#e0f2fe"/>
            <stop offset="100%" stop-color="#7dd3fc"/>
          </linearGradient>
        </defs>
        
        <polygon points="70,12 96,44 70,58" fill="url(#qGrad1)" stroke="#38bdf8" stroke-width="1.5" stroke-linejoin="round"/>
        <polygon points="70,12 70,58 44,44" fill="url(#qGrad3)" stroke="#38bdf8" stroke-width="1.5" stroke-linejoin="round"/>
        <polygon points="96,44 114,62 96,118 70,126" fill="url(#qGrad2)" opacity="0.8" stroke="#38bdf8" stroke-width="1.5" stroke-linejoin="round"/>
        <polygon points="70,58 96,44 70,126" fill="url(#qGrad1)" stroke="#38bdf8" stroke-width="1.5" stroke-linejoin="round"/>
        <polygon points="70,58 70,126 44,118 44,44" fill="url(#qGrad3)" stroke="#38bdf8" stroke-width="1.5" stroke-linejoin="round"/>
        <polygon points="44,44 26,62 44,118" fill="url(#qGrad2)" opacity="0.6" stroke="#38bdf8" stroke-width="1.5" stroke-linejoin="round"/>
        
        <circle cx="108" cy="24" r="2.5" fill="#0284c7"/>
        <circle cx="30" cy="85" r="2" fill="#0284c7"/>
      </svg>

      
      <svg id="svg-gold" class="mineral-svg" viewBox="0 0 140 140">
        <defs>
          <linearGradient id="gGrad1" x1="0%" y1="0%" x2="100%" y2="100%">
            <stop offset="0%" stop-color="#fef08a"/>
            <stop offset="100%" stop-color="#eab308"/>
          </linearGradient>
          <linearGradient id="gGrad2" x1="0%" y1="0%" x2="100%" y2="100%">
            <stop offset="0%" stop-color="#ca8a04"/>
            <stop offset="100%" stop-color="#854d0e"/>
          </linearGradient>
          <linearGradient id="gGrad3" x1="0%" y1="0%" x2="100%" y2="100%">
            <stop offset="0%" stop-color="#fde047"/>
            <stop offset="100%" stop-color="#ca8a04"/>
          </linearGradient>
        </defs>
        
        <polygon points="42,32 78,22 106,42 98,78 68,68" fill="url(#gGrad1)" stroke="#a16207" stroke-width="1.5" stroke-linejoin="round"/>
        <polygon points="42,32 68,68 32,84 22,54" fill="url(#gGrad3)" stroke="#a16207" stroke-width="1.5" stroke-linejoin="round"/>
        <polygon points="68,68 98,78 114,104 74,120 48,110" fill="url(#gGrad2)" stroke="#a16207" stroke-width="1.5" stroke-linejoin="round"/>
        <polygon points="32,84 68,68 48,110" fill="url(#gGrad1)" stroke="#a16207" stroke-width="1.5" stroke-linejoin="round"/>
        <polygon points="98,78 106,42 122,64 114,104" fill="url(#gGrad3)" stroke="#a16207" stroke-width="1.5" stroke-linejoin="round"/>
        
        <circle cx="66" cy="46" r="3" fill="#ffffff" opacity="0.85"/>
      </svg>

      
      <svg id="svg-feldspar" class="mineral-svg" viewBox="0 0 140 140">
        <defs>
          <linearGradient id="fGrad1" x1="0%" y1="0%" x2="100%" y2="100%">
            <stop offset="0%" stop-color="#fecdd3"/>
            <stop offset="100%" stop-color="#fda4af"/>
          </linearGradient>
          <linearGradient id="fGrad2" x1="0%" y1="0%" x2="100%" y2="100%">
            <stop offset="0%" stop-color="#e11d48"/>
            <stop offset="100%" stop-color="#be123c"/>
          </linearGradient>
          <linearGradient id="fGrad3" x1="0%" y1="0%" x2="100%" y2="100%">
            <stop offset="0%" stop-color="#fb7185"/>
            <stop offset="100%" stop-color="#f43f5e"/>
          </linearGradient>
        </defs>
        
        <polygon points="50,22 102,30 84,60 32,52" fill="url(#fGrad1)" stroke="#be123c" stroke-width="1.5" stroke-linejoin="round"/>
        <polygon points="32,52 84,60 76,118 24,106" fill="url(#fGrad3)" stroke="#be123c" stroke-width="1.5" stroke-linejoin="round"/>
        <polygon points="84,60 102,30 118,72 76,118" fill="url(#fGrad2)" opacity="0.9" stroke="#be123c" stroke-width="1.5" stroke-linejoin="round"/>
        
        <line x1="46" y1="65" x2="68" y2="70" stroke="#ffe4e6" stroke-width="1.5" stroke-linecap="round"/>
        <line x1="42" y1="88" x2="64" y2="93" stroke="#ffe4e6" stroke-width="1.5" stroke-linecap="round"/>
      </svg>
    </div>

    
    <div class="traits-list">
      <div class="trait-item">
        <div class="trait-num">1</div>
        <div class="trait-text">Pure substance</div>
        <div class="trait-sub" id="detail-recipe">One recipe (SiO₂)</div>
      </div>
      <div class="trait-item">
        <div class="trait-num">2</div>
        <div class="trait-text">Forms crystal patterns</div>
        <div class="trait-sub" id="detail-pattern">Hexagonal</div>
      </div>
      <div class="trait-item">
        <div class="trait-num">3</div>
        <div class="trait-text">Never alive</div>
        <div class="trait-sub">Inorganic</div>
      </div>
    </div>
  </div>

  <script>
    const minerals = {
      quartz: {
        recipe: 'One recipe (SiO₂)',
        pattern: 'Hexagonal'
      },
      gold: {
        recipe: 'One recipe (Au)',
        pattern: 'Cubic crystal'
      },
      feldspar: {
        recipe: 'One recipe (KAlSi₃O₈)',
        pattern: 'Prismatic block'
      }
    };

    const tabBtns = document.querySelectorAll('.tab-btn');
    const svgQuartz = document.getElementById('svg-quartz');
    const svgGold = document.getElementById('svg-gold');
    const svgFeldspar = document.getElementById('svg-feldspar');
    const detailRecipe = document.getElementById('detail-recipe');
    const detailPattern = document.getElementById('detail-pattern');

    const svgs = {
      quartz: svgQuartz,
      gold: svgGold,
      feldspar: svgFeldspar
    };

    tabBtns.forEach(btn => {
      btn.addEventListener('click', () => {
        const type = btn.getAttribute('data-mineral');
        
        tabBtns.forEach(b => b.classList.remove('active'));
        btn.classList.add('active');

        Object.values(svgs).forEach(svg => svg.classList.remove('active'));
        svgs[type].classList.add('active');

        detailRecipe.textContent = minerals[type].recipe;
        detailPattern.textContent = minerals[type].pattern;
      });
    });
  </script>
</body>
</html>

OGS.4.ESS.1

Aligned learning resources

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