<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      background: transparent;
      color: #1e293b;
      padding: 8px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      min-height: 100%;
    }
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 10px;
      width: 100%;
      max-width: 900px;
      margin: 0 auto;
    }
    @media (max-width: 580px) {
      .matrix-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
      }
    }
    .column-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 12px;
      padding: 12px 10px;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      transition: box-shadow 0.2s ease, border-color 0.2s ease;
      cursor: pointer;
      user-select: none;
    }
    .column-card:hover, .column-card.active {
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
    }
    .column-card.c-time:hover, .column-card.c-time.active { border-color: #6366f1; }
    .column-card.c-cat:hover, .column-card.c-cat.active { border-color: #f59e0b; }
    .column-card.c-geo:hover, .column-card.c-geo.active { border-color: #10b981; }
    .column-card.c-proc:hover, .column-card.c-proc.active { border-color: #f43f5e; }

    .tag {
      font-size: 10px;
      font-weight: 700;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      padding: 3px 7px;
      border-radius: 999px;
      margin-bottom: 8px;
    }
    .tag-time { background: #e0e7ff; color: #4338ca; }
    .tag-cat  { background: #fef3c7; color: #b45309; }
    .tag-geo  { background: #d1fae5; color: #047857; }
    .tag-proc { background: #ffe4e6; color: #be123c; }

    .title {
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #0f172a;
      line-height: 1.2;
    }

    .svg-box {
      width: 100%;
      height: 90px;
      background: #f8fafc;
      border-radius: 8px;
      border: 1px solid #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 8px;
      overflow: hidden;
    }
    svg {
      width: 100%;
      height: 100%;
    }

    .use-case {
      font-size: 12px;
      font-weight: 600;
      color: #64748b;
      line-height: 1.3;
      margin-top: auto;
    }
  </style>
</head>
<body>

  <div class="matrix-grid">
    
    <div class="column-card c-time active" onclick="selectCard(this)">
      <span class="tag tag-time">Time & Change</span>
      <div class="title">Line Graph</div>
      <div class="svg-box">
        <svg viewBox="0 0 140 90">
          <line x1="20" y1="75" x2="125" y2="75" stroke="#cbd5e1" stroke-width="1.5" />
          <line x1="20" y1="15" x2="20" y2="75" stroke="#cbd5e1" stroke-width="1.5" />
          
          <polygon points="25,65 55,50 85,55 115,22 115,75 25,75" fill="#6366f1" fill-opacity="0.15" />
          
          <polyline points="25,65 55,50 85,55 115,22" fill="none" stroke="#6366f1" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round" />
          
          <circle cx="25" cy="65" r="3" fill="#ffffff" stroke="#6366f1" stroke-width="2" />
          <circle cx="55" cy="50" r="3" fill="#ffffff" stroke="#6366f1" stroke-width="2" />
          <circle cx="85" cy="55" r="3" fill="#ffffff" stroke="#6366f1" stroke-width="2" />
          <circle cx="115" cy="22" r="3.5" fill="#6366f1" stroke="#ffffff" stroke-width="1.5" />
        </svg>
      </div>
      <div class="use-case">Continuous shifts over time</div>
    </div>

    
    <div class="column-card c-cat" onclick="selectCard(this)">
      <span class="tag tag-cat">Categorical</span>
      <div class="title">Bar Chart</div>
      <div class="svg-box">
        <svg viewBox="0 0 140 90">
          <line x1="18" y1="75" x2="122" y2="75" stroke="#cbd5e1" stroke-width="1.5" />
          
          <rect x="34" y="45" width="26" height="30" rx="3" fill="#94a3b8" />
          <rect x="76" y="22" width="26" height="53" rx="3" fill="#f59e0b" />
          
          <path d="M 64 45 L 72 45 L 72 22 L 74 22" fill="none" stroke="#b45309" stroke-width="1.5" stroke-dasharray="2,2" />
          <text x="89" y="16" font-size="9" font-weight="700" fill="#b45309" text-anchor="middle">+100%</text>
        </svg>
      </div>
      <div class="use-case">Side-by-side magnitude differences</div>
    </div>

    
    <div class="column-card c-geo" onclick="selectCard(this)">
      <span class="tag tag-geo">Spatial</span>
      <div class="title">Map & Pin</div>
      <div class="svg-box">
        <svg viewBox="0 0 140 90">
          
          <path d="M 22 55 Q 35 25 70 30 T 118 42 Q 122 68 85 74 T 22 55 Z" fill="#e2e8f0" stroke="#cbd5e1" stroke-width="1.5" />
          <circle cx="82" cy="42" r="14" fill="#10b981" fill-opacity="0.2" />
          
          <path d="M 82 28 C 78 28 75 31 75 35 C 75 41 82 49 82 49 C 82 49 89 41 89 35 C 89 31 86 28 82 28 Z" fill="#10b981" />
          <circle cx="82" cy="34" r="2.5" fill="#ffffff" />
        </svg>
      </div>
      <div class="use-case">Physical context & locations</div>
    </div>

    
    <div class="column-card c-proc" onclick="selectCard(this)">
      <span class="tag tag-proc">Process</span>
      <div class="title">Flowchart</div>
      <div class="svg-box">
        <svg viewBox="0 0 140 90">
          
          <circle cx="26" cy="45" r="14" fill="#ffe4e6" stroke="#f43f5e" stroke-width="1.5" />
          <text x="26" y="49" font-size="11" font-weight="700" fill="#e11d48" text-anchor="middle">1</text>
          
          <line x1="42" y1="45" x2="52" y2="45" stroke="#f43f5e" stroke-width="2" stroke-linecap="round" />
          <polygon points="56,45 51,41 51,49" fill="#f43f5e" />
          
          <circle cx="70" cy="45" r="14" fill="#ffe4e6" stroke="#f43f5e" stroke-width="1.5" />
          <text x="70" y="49" font-size="11" font-weight="700" fill="#e11d48" text-anchor="middle">2</text>
          
          <line x1="86" y1="45" x2="96" y2="45" stroke="#f43f5e" stroke-width="2" stroke-linecap="round" />
          <polygon points="100,45 95,41 95,49" fill="#f43f5e" />
          
          <circle cx="114" cy="45" r="14" fill="#f43f5e" />
          <text x="114" y="49" font-size="11" font-weight="700" fill="#ffffff" text-anchor="middle">3</text>
        </svg>
      </div>
      <div class="use-case">Step-by-step cause & effect</div>
    </div>
  </div>

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

Using Visual Displays to Strengthen Claims and Evidence

<!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;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    }

    body {
      background-color: #f8fafc;
      color: #1e293b;
      padding: 12px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      min-height: 100%;
    }

    /* Top Navigation Tabs */
    .nav-bar {
      display: flex;
      justify-content: center;
      gap: 6px;
      background: #e2e8f0;
      padding: 3px;
      border-radius: 8px;
      align-self: center;
      width: 100%;
      max-width: 420px;
    }

    .tab-btn {
      flex: 1;
      padding: 6px 10px;
      font-size: 12px;
      font-weight: 600;
      border: none;
      background: transparent;
      color: #64748b;
      border-radius: 6px;
      cursor: pointer;
      transition: all 0.2s ease;
      white-space: nowrap;
      text-align: center;
    }

    .tab-btn.active {
      background: #ffffff;
      color: #0f172a;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    }

    /* Slide Grid */
    .slides-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      flex: 1;
      min-height: 250px;
    }

    .slides-container.show-a {
      grid-template-columns: 1fr;
    }
    .slides-container.show-a .slide-card.slide-b {
      display: none;
    }

    .slides-container.show-b {
      grid-template-columns: 1fr;
    }
    .slides-container.show-b .slide-card.slide-a {
      display: none;
    }

    /* Slide Card Box */
    .slide-card {
      background: #ffffff;
      border-radius: 8px;
      border: 1px solid #cbd5e1;
      padding: 10px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 8px;
      box-shadow: 0 1px 4px rgba(0,0,0,0.04);
    }

    /* Status Badges */
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-size: 11px;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 999px;
      width: fit-content;
    }

    .badge-weak {
      background: #fee2e2;
      color: #991b1b;
      border: 1px solid #fecaca;
    }

    .badge-strong {
      background: #dcfce7;
      color: #166534;
      border: 1px solid #bbf7d0;
    }

    /* Slide Titles */
    .slide-title-weak {
      font-size: 13px;
      font-weight: 500;
      color: #64748b;
      text-align: center;
      margin: 2px 0 6px 0;
    }

    .slide-title-strong {
      font-size: 13px;
      font-weight: 700;
      color: #0f172a;
      text-align: center;
      margin: 2px 0 6px 0;
      line-height: 1.3;
    }

    /* Weak Content Layout */
    .weak-content {
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 8px;
      align-items: center;
      background: #f8fafc;
      padding: 8px;
      border-radius: 6px;
      border: 1px solid #f1f5f9;
      flex: 1;
    }

    .bullet-list {
      font-size: 10px;
      line-height: 1.35;
      color: #475569;
      list-style-type: none;
      display: flex;
      flex-direction: column;
      gap: 5px;
    }

    .bullet-list li {
      position: relative;
      padding-left: 10px;
    }

    .bullet-list li::before {
      content: "•";
      position: absolute;
      left: 0;
      color: #94a3b8;
    }

    .clipart-box {
      border: 1.5px dashed #ef4444;
      background: #fffbeb;
      border-radius: 6px;
      padding: 6px 4px;
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 2px;
      height: 100%;
    }

    .clipart-icon {
      font-size: 26px;
      line-height: 1;
    }

    .clipart-label {
      font-size: 9px;
      font-weight: 600;
      color: #b91c1c;
      line-height: 1.2;
    }

    /* Strong Content Layout (Bar Chart) */
    .chart-container {
      background: #f8fafc;
      border-radius: 6px;
      border: 1px solid #f1f5f9;
      padding: 8px 12px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      position: relative;
    }

    .chart-title {
      font-size: 10px;
      font-weight: 600;
      color: #64748b;
      margin-bottom: 6px;
      text-align: center;
    }

    .bars-area {
      display: flex;
      justify-content: space-around;
      align-items: flex-end;
      height: 95px;
      border-bottom: 2px solid #cbd5e1;
      padding-bottom: 2px;
      position: relative;
    }

    .bar-group {
      display: flex;
      flex-direction: column;
      align-items: center;
      width: 42%;
      height: 100%;
      justify-content: flex-end;
    }

    .bar-value {
      font-size: 11px;
      font-weight: 700;
      margin-bottom: 3px;
    }

    .bar {
      width: 100%;
      border-radius: 4px 4px 0 0;
      transition: height 0.4s ease;
    }

    .bar-current {
      background: #64748b;
      height: 85%;
    }
    .val-current { color: #475569; }

    .bar-proposed {
      background: #16a34a;
      height: 53%;
    }
    .val-proposed { color: #15803d; }

    .bar-labels {
      display: flex;
      justify-content: space-around;
      margin-top: 4px;
      font-size: 10px;
      font-weight: 600;
      color: #475569;
    }

    .bar-label-item {
      width: 45%;
      text-align: center;
      line-height: 1.1;
    }

    /* Savings Callout */
    .savings-badge {
      position: absolute;
      top: 18%;
      left: 50%;
      transform: translateX(-50%);
      background: #dcfce7;
      border: 1px solid #86efac;
      color: #15803d;
      font-size: 9.5px;
      font-weight: 700;
      padding: 3px 6px;
      border-radius: 6px;
      white-space: nowrap;
      box-shadow: 0 2px 4px rgba(0,0,0,0.06);
      display: flex;
      align-items: center;
      gap: 3px;
      z-index: 2;
    }

    /* Slide Note Callouts */
    .eval-note {
      font-size: 10.5px;
      line-height: 1.25;
      padding: 5px 8px;
      border-radius: 5px;
      font-weight: 500;
    }

    .note-weak {
      background: #fff1f2;
      color: #9f1239;
      border-left: 3px solid #f43f5e;
    }

    .note-strong {
      background: #f0fdf4;
      color: #166534;
      border-left: 3px solid #22c55e;
    }

    /* Bottom Summary Banner */
    .summary-card {
      background: #0f172a;
      color: #f8fafc;
      padding: 8px 12px;
      border-radius: 6px;
      font-size: 11px;
      line-height: 1.35;
      text-align: center;
    }

    .summary-card strong {
      color: #38bdf8;
    }

    @media (max-width: 440px) {
      .slides-container {
        grid-template-columns: 1fr;
      }
      .slide-title-strong, .slide-title-weak {
        font-size: 12px;
      }
      .weak-content {
        grid-template-columns: 1fr;
      }
      .clipart-box {
        padding: 4px;
      }
    }
  </style>
</head>
<body>

  
  <div class="nav-bar" role="tablist">
    <button class="tab-btn active" id="tab-all" role="tab" aria-selected="true" onclick="setView('all')">Side-by-Side</button>
    <button class="tab-btn" id="tab-a" role="tab" aria-selected="false" onclick="setView('a')">Slide A (Weak)</button>
    <button class="tab-btn" id="tab-b" role="tab" aria-selected="false" onclick="setView('b')">Slide B (Strong)</button>
  </div>

  
  <div class="slides-container" id="slidesGrid">
    
    
    <div class="slide-card slide-a">
      <div>
        <div class="badge badge-weak">⚠️ Decorative Clutter</div>
        <div class="slide-title-weak">School Energy</div>
      </div>

      <div class="weak-content">
        <ul class="bullet-list">
          <li>Middle school uses older fluorescent & incandescent lighting.</li>
          <li>Classroom power bills are very expensive each school year.</li>
          <li>Upgrading fixtures could help cut overall power use.</li>
        </ul>
        <div class="clipart-box">
          <div class="clipart-icon">💡</div>
          <div class="clipart-label">Decorative clip-art<br><strong>0% proof</strong></div>
        </div>
      </div>

      <div class="eval-note note-weak">
        <strong>Fails:</strong> Repeats speech in tiny text + adds irrelevant clip-art.
      </div>
    </div>

    
    <div class="slide-card slide-b">
      <div>
        <div class="badge badge-strong">✓ Direct Visual Evidence</div>
        <div class="slide-title-strong">LED Upgrade Cuts 3-Year Energy Costs by 38%</div>
      </div>

      <div class="chart-container">
        <div class="chart-title">3-Year Projected Lighting Expenditure</div>
        
        <div class="savings-badge">
          <span>▼</span> -38% ($4,700 Saved)
        </div>

        <div class="bars-area">
          <div class="bar-group">
            <div class="bar-value val-current">$12,400</div>
            <div class="bar bar-current"></div>
          </div>
          <div class="bar-group">
            <div class="bar-value val-proposed">$7,700</div>
            <div class="bar bar-proposed"></div>
          </div>
        </div>

        <div class="bar-labels">
          <div class="bar-label-item">Current (Standard)</div>
          <div class="bar-label-item">Proposed (LED)</div>
        </div>
      </div>

      <div class="eval-note note-strong">
        <strong>Succeeds:</strong> Quantifies and proves the spoken claim instantly.
      </div>
    </div>

  </div>

  
  <div class="summary-card">
    <strong>Core Rule:</strong> Visual aids must provide concrete evidence that proves your claim, not decorative filler that duplicates your speech.
  </div>

  <script>
    function setView(view) {
      const grid = document.getElementById('slidesGrid');
      const tabs = {
        all: document.getElementById('tab-all'),
        a: document.getElementById('tab-a'),
        b: document.getElementById('tab-b')
      };

      // Update tab active states
      Object.keys(tabs).forEach(k => {
        const isActive = (k === view);
        tabs[k].classList.toggle('active', isActive);
        tabs[k].setAttribute('aria-selected', isActive);
      });

      // Update grid classes
      grid.classList.remove('show-a', 'show-b');
      if (view === 'a') grid.classList.add('show-a');
      if (view === 'b') grid.classList.add('show-b');
    }
  </script>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      background: #ffffff;
      color: #1e2945;
      width: 100%;
      min-height: 100%;
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 10px;
      user-select: none;
    }

    .nav-bar {
      display: flex;
      gap: 6px;
      width: 100%;
      max-width: 480px;
      margin-bottom: 8px;
    }

    .tab-btn {
      flex: 1;
      border: 1px solid #cbd5e1;
      background: #f8fafc;
      color: #64748b;
      font-size: 13px;
      font-weight: 700;
      padding: 8px 4px;
      border-radius: 8px;
      cursor: pointer;
      text-align: center;
      transition: background 0.2s, color 0.2s, border-color 0.2s, box-shadow 0.2s;
    }

    .tab-btn.active {
      background: #22b7ff;
      color: #ffffff;
      border-color: #22b7ff;
      box-shadow: 0 2px 6px rgba(34, 183, 255, 0.35);
    }

    .stage-container {
      position: relative;
      width: 100%;
      max-width: 480px;
      height: 310px;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 12px;
      overflow: hidden;
    }

    .stage {
      position: absolute;
      inset: 0;
      padding: 12px;
      display: flex;
      flex-direction: column;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.25s ease;
    }

    .stage.active {
      opacity: 1;
      pointer-events: auto;
    }

    .stage-title {
      font-size: 14px;
      font-weight: 800;
      color: #1e2945;
      text-align: center;
      margin-bottom: 8px;
    }

    /* Principle 1: Coherence */
    .compare-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      flex: 1;
    }

    .mini-slide {
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      padding: 8px;
      position: relative;
      display: flex;
      flex-direction: column;
    }

    .slide-badge {
      font-size: 11px;
      font-weight: 800;
      padding: 2px 6px;
      border-radius: 4px;
      align-self: flex-start;
      margin-bottom: 4px;
    }
    .badge-bad { background: #fee2e2; color: #dc2626; }
    .badge-good { background: #dcfce7; color: #16a34a; }

    .chart-box {
      flex: 1;
      position: relative;
      display: flex;
      align-items: flex-end;
      gap: 6px;
      padding: 8px 4px 0 4px;
      border-bottom: 2px solid #94a3b8;
    }

    .bar {
      flex: 1;
      background: #93c5fd;
      border-radius: 3px 3px 0 0;
    }

    .distraction {
      position: absolute;
      font-size: 24px;
      filter: drop-shadow(0 2px 4px rgba(0,0,0,0.15));
    }
    .d1 { top: 12px; right: 8px; }
    .d2 { top: 38px; left: 16px; }

    .crossout-line {
      position: absolute;
      inset: 0;
      pointer-events: none;
    }

    /* Principle 2: Spatial Contiguity */
    .spatial-wrap {
      flex: 1;
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      padding: 10px;
      display: flex;
      flex-direction: column;
    }

    .legend-bad {
      margin-top: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      font-size: 12px;
      font-weight: 700;
      color: #94a3b8;
      background: #f1f5f9;
      padding: 4px 8px;
      border-radius: 6px;
      position: relative;
    }

    .legend-bad::after {
      content: "✕ Separated Key";
      position: absolute;
      background: #ef4444;
      color: #ffffff;
      font-size: 11px;
      font-weight: 800;
      padding: 1px 8px;
      border-radius: 10px;
      box-shadow: 0 1px 3px rgba(0,0,0,0.2);
    }

    /* Principle 3: Signaling */
    .signal-wrap {
      flex: 1;
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      padding: 10px;
      position: relative;
    }

    .callout {
      position: absolute;
      top: 14px;
      right: 14px;
      background: #f0fdf4;
      border: 2px solid #16a34a;
      color: #15803d;
      font-size: 12px;
      font-weight: 800;
      padding: 6px 10px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(22, 163, 74, 0.2);
      display: flex;
      align-items: center;
      gap: 4px;
      animation: pulseGreen 2.2s infinite ease-in-out;
    }

    @keyframes pulseGreen {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-3px); }
    }

    .callout-arrow {
      position: absolute;
      bottom: -9px;
      left: 30px;
      width: 0;
      height: 0;
      border-left: 7px solid transparent;
      border-right: 7px solid transparent;
      border-top: 8px solid #16a34a;
    }
  </style>
</head>
<body>

  <div class="nav-bar">
    <button class="tab-btn active" onclick="showStage(0)">1. Coherence</button>
    <button class="tab-btn" onclick="showStage(1)">2. Spatial</button>
    <button class="tab-btn" onclick="showStage(2)">3. Signaling</button>
  </div>

  <div class="stage-container">

    
    <div class="stage active" id="stage-0">
      <div class="stage-title">Coherence: Remove Irrelevant Clutter</div>
      <div class="compare-grid">
        <div class="mini-slide">
          <span class="slide-badge badge-bad">Before</span>
          <div class="chart-box">
            <div class="bar" style="height: 45%;"></div>
            <div class="bar" style="height: 70%;"></div>
            <div class="bar" style="height: 55%;"></div>
            
            <div class="distraction d1">🚀</div>
            <div class="distraction d2">🎉</div>
            <svg class="crossout-line" viewBox="0 0 100 100" preserveAspectRatio="none">
              <line x1="10" y1="10" x2="90" y2="90" stroke="#ef4444" stroke-width="3.5" stroke-linecap="round" />
              <line x1="90" y1="10" x2="10" y2="90" stroke="#ef4444" stroke-width="3.5" stroke-linecap="round" />
            </svg>
          </div>
        </div>

        <div class="mini-slide">
          <span class="slide-badge badge-good">After ✓</span>
          <div class="chart-box">
            <div class="bar" style="height: 45%; background:#3b82f6;"></div>
            <div class="bar" style="height: 70%; background:#3b82f6;"></div>
            <div class="bar" style="height: 55%; background:#3b82f6;"></div>
          </div>
        </div>
      </div>
    </div>

    
    <div class="stage" id="stage-1">
      <div class="stage-title">Spatial Contiguity: Label Directly at Data</div>
      <div class="spatial-wrap">
        <svg style="flex:1; width:100%;" viewBox="0 0 320 170">
          
          <line x1="25" y1="140" x2="305" y2="140" stroke="#94a3b8" stroke-width="1.5" />
          <line x1="25" y1="85" x2="305" y2="85" stroke="#e2e8f0" stroke-dasharray="4" />
          <line x1="25" y1="30" x2="305" y2="30" stroke="#e2e8f0" stroke-dasharray="4" />

          
          <path d="M 35 120 L 110 95 L 185 60 L 240 38" fill="none" stroke="#2563eb" stroke-width="3.5" stroke-linecap="round" />
          <circle cx="240" cy="38" r="4.5" fill="#2563eb" />
          
          <text x="250" y="42" font-size="13" font-weight="800" fill="#2563eb">Plan A</text>

          
          <path d="M 35 130 L 110 120 L 185 110 L 240 98" fill="none" stroke="#d97706" stroke-width="3.5" stroke-linecap="round" />
          <circle cx="240" cy="98" r="4.5" fill="#d97706" />
          
          <text x="250" y="102" font-size="13" font-weight="800" fill="#d97706">Plan B</text>
        </svg>

        <div class="legend-bad">
          <span style="opacity:0.3;">■ Plan A</span>
          <span style="opacity:0.3;">■ Plan B</span>
        </div>
      </div>
    </div>

    
    <div class="stage" id="stage-2">
      <div class="stage-title">Signaling: Guide Attention to Main Proof</div>
      <div class="signal-wrap">
        
        
        <div class="callout">
          <span>Key Proof: +14% Jump</span>
          <div class="callout-arrow"></div>
        </div>

        <svg style="width:100%; height:100%;" viewBox="0 0 320 200">
          
          <line x1="20" y1="180" x2="300" y2="180" stroke="#94a3b8" stroke-width="2" />

          
          <rect x="40" y="115" width="45" height="65" rx="4" fill="#cbd5e1" />
          <text x="62" y="195" font-size="11" font-weight="700" fill="#64748b" text-anchor="middle">Q1</text>

          <rect x="110" y="90" width="45" height="90" rx="4" fill="#cbd5e1" />
          <text x="132" y="195" font-size="11" font-weight="700" fill="#64748b" text-anchor="middle">Q2</text>

          
          <rect x="180" y="45" width="50" height="135" rx="4" fill="#16a34a" />
          <rect x="178" y="43" width="54" height="139" rx="6" fill="none" stroke="#22c55e" stroke-width="2" stroke-dasharray="4" />
          <text x="205" y="195" font-size="12" font-weight="800" fill="#15803d" text-anchor="middle">Q3 ★</text>

          <rect x="255" y="80" width="45" height="100" rx="4" fill="#cbd5e1" />
          <text x="277" y="195" font-size="11" font-weight="700" fill="#64748b" text-anchor="middle">Q4</text>
        </svg>

      </div>
    </div>

  </div>

  <script>
    let currentIdx = 0;
    const stages = document.querySelectorAll('.stage');
    const buttons = document.querySelectorAll('.tab-btn');
    let timer = null;

    function showStage(idx) {
      currentIdx = idx;
      stages.forEach((s, i) => s.classList.toggle('active', i === idx));
      buttons.forEach((b, i) => b.classList.toggle('active', i === idx));
    }

    function autoCycle() {
      currentIdx = (currentIdx + 1) % stages.length;
      showStage(currentIdx);
    }

    timer = setInterval(autoCycle, 4200);

    buttons.forEach((btn, i) => {
      btn.addEventListener('click', () => {
        clearInterval(timer);
        showStage(i);
      });
    });
  </script>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Chart Design Integrity</title>
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    }

    body {
      background: transparent;
      color: #1e293b;
      padding: 8px 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: flex-start;
      min-height: auto;
    }

    .main-container {
      width: 100%;
      max-width: 620px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .comparison-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      width: 100%;
    }

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

    .panel-section {
      display: flex;
      flex-direction: column;
      align-items: center;
      width: 100%;
    }

    .panel-title {
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 6px;
      text-align: center;
      color: #334155;
    }

    /* Left Panel - Cluttered & Distorted Chart */
    .chart-box-bad {
      width: 100%;
      height: 180px;
      position: relative;
      background: linear-gradient(135deg, #ffedd5 0%, #fef08a 50%, #e0e7ff 100%);
      border: 3px solid #000;
      display: flex;
      align-items: flex-end;
      justify-content: space-around;
      padding: 0 12px 28px 40px;
      box-shadow: 4px 4px 0px rgba(0,0,0,0.15);
    }

    .gridline-bad {
      position: absolute;
      left: 36px;
      right: 0;
      height: 2px;
      background: #000;
      z-index: 1;
    }
    .gl-1 { bottom: 28px; }
    .gl-2 { bottom: 62px; }
    .gl-3 { bottom: 98px; }
    .gl-4 { bottom: 134px; }
    .gl-5 { bottom: 168px; }

    .y-labels-bad {
      position: absolute;
      left: 6px;
      top: 6px;
      bottom: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      font-size: 11px;
      font-weight: 900;
      color: #000;
      z-index: 2;
    }

    .bar-bad-group {
      position: relative;
      width: 44px;
      display: flex;
      flex-direction: column;
      align-items: center;
      z-index: 3;
    }

    .val-tag-bad {
      font-size: 11px;
      font-weight: 900;
      background: #000;
      color: #fff;
      padding: 1px 4px;
      border-radius: 2px;
      margin-bottom: 5px;
      letter-spacing: -0.2px;
    }

    .bar-3d-1 {
      height: 60px;
      width: 100%;
      background: linear-gradient(to right, #ea580c, #f97316);
      box-shadow: 5px -5px 0px #9a3412;
      transform: skewY(-3deg);
      border: 1.5px solid #000;
    }

    .bar-3d-2 {
      height: 120px;
      width: 100%;
      background: linear-gradient(to right, #ec4899, #f43f5e);
      box-shadow: 5px -5px 0px #9d174d;
      transform: skewY(-3deg);
      border: 1.5px solid #000;
    }

    .x-label-bad {
      position: absolute;
      bottom: -22px;
      font-size: 12px;
      font-weight: 900;
      color: #000;
    }

    /* Right Panel - Clean Chart Integrity */
    .chart-box-good {
      width: 100%;
      height: 180px;
      position: relative;
      background: #f8fafc;
      border-bottom: 2px solid #64748b;
      border-left: 2px solid #64748b;
      display: flex;
      align-items: flex-end;
      justify-content: space-around;
      padding: 0 12px 28px 36px;
    }

    .gridline-good {
      position: absolute;
      left: 0;
      right: 0;
      height: 1px;
      background: #e2e8f0;
      z-index: 1;
    }
    .gl-g1 { bottom: 28px; }
    .gl-g2 { bottom: 88px; }
    .gl-g3 { bottom: 148px; }

    .y-labels-good {
      position: absolute;
      left: 4px;
      top: 24px;
      bottom: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      font-size: 11px;
      font-weight: 600;
      color: #64748b;
      text-align: right;
      width: 26px;
      z-index: 2;
    }

    .bar-good-group {
      position: relative;
      width: 44px;
      display: flex;
      flex-direction: column;
      align-items: center;
      z-index: 3;
    }

    .val-tag-good {
      font-size: 11px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 4px;
    }

    .bar-clean-1 {
      height: 114px;
      width: 100%;
      background: #38bdf8;
      border-radius: 3px 3px 0 0;
    }

    .bar-clean-2 {
      height: 118px;
      width: 100%;
      background: #0284c7;
      border-radius: 3px 3px 0 0;
    }

    .x-label-good {
      position: absolute;
      bottom: -22px;
      font-size: 12px;
      font-weight: 700;
      color: #475569;
    }

    /* Badges */
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      padding: 4px 10px;
      border-radius: 16px;
      font-size: 12px;
      font-weight: 700;
      margin-top: 8px;
      text-align: center;
    }

    .badge-bad {
      background: #fef2f2;
      color: #b91c1c;
      border: 1px solid #fecaca;
    }

    .badge-good {
      background: #f0fdf4;
      color: #15803d;
      border: 1px solid #bbf7d0;
    }

    .footer-note {
      font-size: 12px;
      font-weight: 600;
      color: #64748b;
      text-align: center;
      margin-top: 2px;
      padding: 4px 8px;
      background: #f1f5f9;
      border-radius: 6px;
    }
  </style>
</head>
<body>

  <div class="main-container">
    <div class="comparison-grid">
      
      <div class="panel-section">
        <div class="panel-title">Low Ink Ratio (Truncated Axis)</div>
        <div class="chart-box-bad">
          <div class="y-labels-bad">
            <span>98</span>
            <span>96</span>
            <span>94</span>
            <span>92</span>
            <span>90</span>
          </div>
          <div class="gridline-bad gl-5"></div>
          <div class="gridline-bad gl-4"></div>
          <div class="gridline-bad gl-3"></div>
          <div class="gridline-bad gl-2"></div>
          <div class="gridline-bad gl-1"></div>

          <div class="bar-bad-group">
            <span class="val-tag-bad">94%</span>
            <div class="bar-3d-1"></div>
            <span class="x-label-bad">A</span>
          </div>

          <div class="bar-bad-group">
            <span class="val-tag-bad">96%</span>
            <div class="bar-3d-2"></div>
            <span class="x-label-bad">B</span>
          </div>
        </div>
        <div class="badge badge-bad">
          <span>⚠️</span> Misleading Distortion
        </div>
      </div>

      
      <div class="panel-section">
        <div class="panel-title">High Ink Ratio (Zero Baseline)</div>
        <div class="chart-box-good">
          <div class="y-labels-good">
            <span>100</span>
            <span>50</span>
            <span>0</span>
          </div>
          <div class="gridline-good gl-g3"></div>
          <div class="gridline-good gl-g2"></div>
          <div class="gridline-good gl-g1"></div>

          <div class="bar-good-group">
            <span class="val-tag-good">94%</span>
            <div class="bar-clean-1"></div>
            <span class="x-label-good">A</span>
          </div>

          <div class="bar-good-group">
            <span class="val-tag-good">96%</span>
            <div class="bar-clean-2"></div>
            <span class="x-label-good">B</span>
          </div>
        </div>
        <div class="badge badge-good">
          <span>✓</span> Accurate &amp; Clear
        </div>
      </div>
    </div>

    <div class="footer-note">
      Both charts represent the same +2% difference (94% vs 96%)
    </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">
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      color: #1e293b;
      background: transparent;
      padding: 10px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 100vh;
    }

    .comparison-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      width: 100%;
      max-width: 640px;
    }

    .panel {
      border-radius: 12px;
      padding: 12px 10px;
      display: flex;
      flex-direction: column;
      align-items: center;
      position: relative;
    }

    .panel-bad {
      background: #fef2f2;
      border: 1.5px solid #fecaca;
    }

    .panel-good {
      background: #f0fdf4;
      border: 1.5px solid #bbf7d0;
    }

    .panel-title {
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 4px;
      text-align: center;
    }

    .panel-bad .panel-title { color: #dc2626; }
    .panel-good .panel-title { color: #16a34a; }

    .diagram-svg {
      width: 100%;
      height: auto;
      max-height: 200px;
      display: block;
    }

    /* Smooth CSS animations (>500ms cycle to prevent flicker) */
    @keyframes flowLeft {
      from { stroke-dashoffset: 20; }
      to { stroke-dashoffset: 0; }
    }
    @keyframes pulseSpark {
      0%, 100% { transform: scale(1); opacity: 0.85; }
      50% { transform: scale(1.1); opacity: 1; }
    }
    @keyframes glowBrain {
      0%, 100% { filter: drop-shadow(0 0 2px rgba(16, 185, 129, 0.3)); }
      50% { filter: drop-shadow(0 0 6px rgba(16, 185, 129, 0.7)); }
    }

    .flow-stream {
      stroke-dasharray: 6 4;
      animation: flowLeft 1.8s linear infinite;
    }

    .spark {
      transform-origin: 100px 98px;
      animation: pulseSpark 1.6s ease-in-out infinite;
    }

    .brain-glow {
      animation: glowBrain 2.4s ease-in-out infinite;
    }

    .badge {
      margin-top: 6px;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 20px;
      text-align: center;
    }

    .badge-bad {
      background: #fee2e2;
      color: #b91c1c;
      border: 1px solid #f87171;
    }

    .badge-good {
      background: #dcfce7;
      color: #15803d;
      border: 1px solid #4ade80;
    }

    /* Responsive mobile stacking under 480px */
    @media (max-width: 480px) {
      body {
        padding: 6px;
      }
      .comparison-grid {
        grid-template-columns: 1fr;
        max-width: 320px;
        gap: 10px;
      }
      .diagram-svg {
        max-height: 165px;
      }
      .panel {
        padding: 8px 6px;
      }
      .panel-title {
        font-size: 12px;
        margin-bottom: 4px;
      }
      .badge {
        font-size: 11px;
        padding: 3px 8px;
        margin-top: 4px;
      }
    }
  </style>
</head>
<body>

  <div class="comparison-grid">
    
    
    <div class="panel panel-bad">
      <div class="panel-title">✕ Text-Heavy (Overload)</div>
      
      <svg class="diagram-svg" viewBox="0 0 200 195">
        
        
        <g transform="translate(16, 10)">
          <rect x="0" y="0" width="62" height="38" rx="6" fill="#ffffff" stroke="#fca5a5" stroke-width="1.5"/>
          <text x="31" y="16" font-size="13" text-anchor="middle">🗣️</text>
          <text x="31" y="30" font-size="8.5" font-weight="700" fill="#dc2626" text-anchor="middle">Speech</text>
        </g>

        
        <g transform="translate(122, 10)">
          <rect x="0" y="0" width="62" height="38" rx="6" fill="#ffffff" stroke="#fca5a5" stroke-width="1.5"/>
          
          <line x1="8" y1="10" x2="54" y2="10" stroke="#94a3b8" stroke-width="2" stroke-linecap="round"/>
          <line x1="8" y1="16" x2="48" y2="16" stroke="#94a3b8" stroke-width="2" stroke-linecap="round"/>
          <line x1="8" y1="22" x2="52" y2="22" stroke="#94a3b8" stroke-width="2" stroke-linecap="round"/>
          <line x1="8" y1="28" x2="42" y2="28" stroke="#94a3b8" stroke-width="2" stroke-linecap="round"/>
          <text x="31" y="35" font-size="6.5" font-weight="700" fill="#dc2626" text-anchor="middle">Text Slide</text>
        </g>

        
        <path d="M 47 48 L 94 92" fill="none" stroke="#ef4444" stroke-width="2.5" class="flow-stream"/>
        <path d="M 153 48 L 106 92" fill="none" stroke="#ef4444" stroke-width="2.5" class="flow-stream"/>

        
        <g class="spark">
          <polygon points="100,80 106,93 120,91 110,101 118,114 104,106 96,118 93,105 79,106 88,96 79,86 93,91" fill="#ef4444"/>
          <polygon points="100,86 104,95 113,93 106,100 111,109 102,104 97,111 95,102 87,103 93,96 88,90 95,94" fill="#fbbf24"/>
          <text x="100" y="102" font-size="10" text-anchor="middle">⚡</text>
        </g>

        
        <rect x="65" y="122" width="70" height="22" rx="11" fill="#fee2e2" stroke="#ef4444" stroke-width="1.5"/>
        <text x="100" y="137" font-size="9.5" font-weight="700" fill="#b91c1c" text-anchor="middle">👂 Verbal Only</text>

        
        <line x1="100" y1="144" x2="100" y2="158" stroke="#ef4444" stroke-width="2" stroke-dasharray="2 2"/>
        <line x1="93" y1="156" x2="107" y2="156" stroke="#ef4444" stroke-width="2"/>

        
        <g transform="translate(100, 178)">
          <text x="0" y="0" font-size="20" text-anchor="middle">😵‍💫</text>
        </g>
      </svg>

      <div class="badge badge-bad">Verbal Channel Jammed</div>
    </div>

    
    <div class="panel panel-good">
      <div class="panel-title">✓ Dual Coding (Visual)</div>

      <svg class="diagram-svg" viewBox="0 0 200 195">
        
        
        <g transform="translate(16, 10)">
          <rect x="0" y="0" width="62" height="38" rx="6" fill="#ffffff" stroke="#93c5fd" stroke-width="1.5"/>
          <text x="31" y="16" font-size="13" text-anchor="middle">🗣️</text>
          <text x="31" y="30" font-size="8.5" font-weight="700" fill="#2563eb" text-anchor="middle">Speech</text>
        </g>

        
        <g transform="translate(122, 10)">
          <rect x="0" y="0" width="62" height="38" rx="6" fill="#ffffff" stroke="#86efac" stroke-width="1.5"/>
          
          <rect x="14" y="18" width="6" height="10" rx="1" fill="#10b981"/>
          <rect x="23" y="13" width="6" height="15" rx="1" fill="#10b981"/>
          <rect x="32" y="7" width="6" height="21" rx="1" fill="#3b82f6"/>
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      <div class="badge badge-good">Seamless Comprehension</div>
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OGE.8.SL.4

Aligned learning resources

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