<!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: #1e2945;
      background: #f8fafc;
      width: 100%;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 10px;
      user-select: none;
    }

    .diagram-area {
      width: 100%;
      max-width: 580px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    /* Interactive Stepper Bar */
    .controls {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 6px;
      width: 100%;
    }

    .step-btns {
      display: flex;
      gap: 6px;
      flex: 1;
    }

    .step-btn {
      flex: 1;
      padding: 8px 4px;
      font-size: 12.5px;
      font-weight: 700;
      background: #ffffff;
      border: 1.5px solid #cbd5e1;
      border-radius: 8px;
      color: #334155;
      cursor: pointer;
      text-align: center;
      transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    }

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

    .step-btn.active {
      background: #2563eb;
      border-color: #2563eb;
      color: #ffffff;
    }

    .play-btn {
      padding: 8px 12px;
      font-size: 14px;
      font-weight: 700;
      background: #ffffff;
      border: 1.5px solid #cbd5e1;
      border-radius: 8px;
      color: #1e2945;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      min-width: 42px;
      transition: background 0.2s ease, border-color 0.2s ease;
    }

    .play-btn:hover {
      border-color: #94a3b8;
      background: #f1f5f9;
    }

    /* Main SVG Canvas - No outer card border */
    .funnel-canvas {
      width: 100%;
      height: auto;
      background: transparent;
      display: block;
    }

    /* Stage Highlights */
    .stage-group {
      transition: opacity 0.35s ease;
    }
    
    .dimmed {
      opacity: 0.55;
    }

    .active-stage {
      opacity: 1;
    }

    /* Flow Animations */
    @keyframes flowRaw {
      0% { transform: translateX(0); opacity: 0; }
      30% { opacity: 1; }
      100% { transform: translateX(35px); opacity: 0.9; }
    }

    @keyframes passGate {
      0% { transform: translateX(0); opacity: 0.3; }
      50% { opacity: 1; }
      100% { transform: translateX(85px); opacity: 1; }
    }

    @keyframes blockGateTop {
      0% { transform: translate(0, 0); opacity: 0.9; }
      60% { transform: translate(25px, -18px); opacity: 0.9; }
      100% { transform: translate(35px, -24px); opacity: 0; }
    }

    @keyframes blockGateBottom {
      0% { transform: translate(0, 0); opacity: 0.9; }
      60% { transform: translate(25px, 18px); opacity: 0.9; }
      100% { transform: translate(35px, 24px); opacity: 0; }
    }

    .flow-dot {
      animation: flowRaw 2.4s infinite ease-in-out;
    }

    .pass-dot {
      animation: passGate 2.2s infinite ease-out;
    }

    .block-dot-top {
      animation: blockGateTop 2.2s infinite ease-in;
    }

    .block-dot-bottom {
      animation: blockGateBottom 2.2s infinite ease-in;
    }

    /* Text & Label styling */
    text {
      font-family: system-ui, -apple-system, sans-serif;
    }

    @media (max-width: 380px) {
      .step-btn {
        font-size: 11px;
        padding: 6px 2px;
      }
      .play-btn {
        padding: 6px 8px;
        min-width: 36px;
      }
    }
  </style>
</head>
<body>

  <div class="diagram-area">
    
    <svg class="funnel-canvas" viewBox="0 0 540 280">
      <defs>
        
        <linearGradient id="funnelGrad" x1="0%" y1="0%" x2="100%" y2="0%">
          <stop offset="0%" stop-color="#eff6ff" stop-opacity="0.95" />
          <stop offset="100%" stop-color="#dbeafe" stop-opacity="0.8" />
        </linearGradient>

        <linearGradient id="passedGrad" x1="0%" y1="0%" x2="100%" y2="0%">
          <stop offset="0%" stop-color="#2563eb" />
          <stop offset="100%" stop-color="#1d4ed8" />
        </linearGradient>

        <marker id="arrow" viewBox="0 0 10 10" refX="6" refY="5" markerWidth="6" markerHeight="6" orient="auto-start-reverse">
          <path d="M 0 1 L 10 5 L 0 9 z" fill="#2563eb" />
        </marker>
      </defs>

      
      <path d="M 115,35 L 240,75 L 240,205 L 115,245 Z" fill="url(#funnelGrad)" stroke="#93c5fd" stroke-width="2" stroke-dasharray="5 3" />

      
      <g id="stage1" class="stage-group">
        
        <circle cx="40" cy="80" r="16" fill="#e2e8f0" stroke="#cbd5e1" stroke-width="1.5" />
        <text x="40" y="86" font-size="15" text-anchor="middle">⚡</text>

        <circle cx="82" cy="60" r="16" fill="#e2e8f0" stroke="#cbd5e1" stroke-width="1.5" />
        <text x="82" y="66" font-size="15" text-anchor="middle">💬</text>

        <circle cx="44" cy="140" r="16" fill="#e2e8f0" stroke="#cbd5e1" stroke-width="1.5" />
        <text x="44" y="146" font-size="15" text-anchor="middle">🚗</text>

        <circle cx="82" cy="130" r="16" fill="#e2e8f0" stroke="#cbd5e1" stroke-width="1.5" />
        <text x="82" y="136" font-size="15" text-anchor="middle">🌧️</text>

        <circle cx="40" cy="200" r="16" fill="#e2e8f0" stroke="#cbd5e1" stroke-width="1.5" />
        <text x="40" y="206" font-size="15" text-anchor="middle">📈</text>

        <circle cx="82" cy="210" r="16" fill="#e2e8f0" stroke="#cbd5e1" stroke-width="1.5" />
        <text x="82" y="216" font-size="15" text-anchor="middle">💥</text>

        
        <circle class="flow-dot" cx="108" cy="95" r="4.5" fill="#475569" />
        <circle class="flow-dot" cx="100" cy="140" r="5" fill="#2563eb" style="animation-delay: 0.6s;" />
        <circle class="flow-dot" cx="108" cy="185" r="4.5" fill="#475569" style="animation-delay: 1.2s;" />

        <text x="62" y="252" font-size="13.5" font-weight="800" fill="#1e2945" text-anchor="middle">Raw Events</text>
        <text x="62" y="268" font-size="11.5" font-weight="700" fill="#334155" text-anchor="middle">Thousands Daily</text>
      </g>

      
      <g id="stage2" class="stage-group">
        
        <rect x="225" y="70" width="115" height="140" rx="10" fill="#ffffff" stroke="#2563eb" stroke-width="2.5" />
        <rect x="225" y="70" width="115" height="30" rx="10" fill="#eff6ff" />
        <rect x="225" y="90" width="115" height="10" fill="#eff6ff" />
        <text x="282" y="91" font-size="12.5" font-weight="800" fill="#1d4ed8" text-anchor="middle">Gatekeepers</text>

        
        <g font-size="11" font-weight="700" fill="#1e2945" text-anchor="middle">
          <text x="282" y="117">Reporters</text>
          <text x="282" y="138">Fact-Checkers</text>
          <text x="282" y="159">Copy Editors</text>
          <text x="282" y="180">Producers</text>
        </g>

        
        
        <path d="M 340,90 Q 365,65 385,58" fill="none" stroke="#dc2626" stroke-width="2" stroke-dasharray="4 3" />
        <circle class="block-dot-top" cx="340" cy="90" r="4.5" fill="#dc2626" />
        <rect x="382" y="44" width="68" height="24" rx="5" fill="#fee2e2" stroke="#ef4444" stroke-width="1.5" />
        <text x="416" y="60.5" font-size="11.5" font-weight="800" fill="#991b1b" text-anchor="middle">✕ Closed</text>

        
        <path d="M 340,190 Q 365,215 385,222" fill="none" stroke="#dc2626" stroke-width="2" stroke-dasharray="4 3" />
        <circle class="block-dot-bottom" cx="340" cy="190" r="4.5" fill="#dc2626" style="animation-delay: 0.8s;" />
        <rect x="382" y="210" width="68" height="24" rx="5" fill="#fee2e2" stroke="#ef4444" stroke-width="1.5" />
        <text x="416" y="226.5" font-size="11.5" font-weight="800" fill="#991b1b" text-anchor="middle">✕ Closed</text>

        
        <line x1="340" y1="140" x2="385" y2="140" stroke="#16a34a" stroke-width="3" />
        <rect x="350" y="127" width="56" height="26" rx="5" fill="#dcfce7" stroke="#22c55e" stroke-width="1.5" />
        <text x="378" y="144.5" font-size="11.5" font-weight="800" fill="#15803d" text-anchor="middle">✓ Open</text>
        <circle class="pass-dot" cx="340" cy="140" r="5" fill="#2563eb" />

        <text x="282" y="252" font-size="13.5" font-weight="800" fill="#1e2945" text-anchor="middle">Filter &amp; Verify</text>
        <text x="282" y="268" font-size="11.5" font-weight="700" fill="#334155" text-anchor="middle">Accuracy &amp; Value</text>
      </g>

      
      <g id="stage3" class="stage-group">
        
        <path d="M 406,140 L 440,140" fill="none" stroke="#2563eb" stroke-width="2.5" marker-end="url(#arrow)" />

        
        <rect x="442" y="80" width="90" height="120" rx="10" fill="url(#passedGrad)" stroke="#1d4ed8" stroke-width="1.5" />
        <text x="487" y="112" font-size="24" text-anchor="middle">📰</text>
        <text x="487" y="137" font-size="12.5" font-weight="800" fill="#ffffff" text-anchor="middle">Verified</text>
        <text x="487" y="153" font-size="11" font-weight="700" fill="#dbeafe" text-anchor="middle">News Story</text>
        <line x1="458" y1="162" x2="516" y2="162" stroke="#60a5fa" stroke-width="1" />
        <text x="487" y="183" font-size="13" text-anchor="middle">👥 Audience</text>

        <text x="487" y="252" font-size="13.5" font-weight="800" fill="#1e2945" text-anchor="middle">Public</text>
        <text x="487" y="268" font-size="11.5" font-weight="700" fill="#334155" text-anchor="middle">Delivered</text>
      </g>
    </svg>

    
    <div class="controls">
      <div class="step-btns">
        <button class="step-btn active" id="btn0" onclick="setStep(0)">1. Raw Events</button>
        <button class="step-btn" id="btn1" onclick="setStep(1)">2. Gatekeepers</button>
        <button class="step-btn" id="btn2" onclick="setStep(2)">3. Verified News</button>
      </div>
      <button class="play-btn" id="playBtn" onclick="togglePlay()" aria-label="Toggle Auto Play">⏸</button>
    </div>
  </div>

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

    const stages = [
      document.getElementById('stage1'),
      document.getElementById('stage2'),
      document.getElementById('stage3')
    ];

    const buttons = [
      document.getElementById('btn0'),
      document.getElementById('btn1'),
      document.getElementById('btn2')
    ];

    function applyState(step) {
      currentStep = step;
      buttons.forEach((btn, idx) => {
        btn.classList.toggle('active', idx === step);
      });

      stages.forEach((stage, idx) => {
        if (idx === step) {
          stage.classList.remove('dimmed');
          stage.classList.add('active-stage');
        } else {
          stage.classList.remove('active-stage');
          stage.classList.add('dimmed');
        }
      });
    }

    function setStep(step) {
      applyState(step);
    }

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

    function togglePlay() {
      isPlaying = !isPlaying;
      document.getElementById('playBtn').textContent = isPlaying ? '⏸' : '▶';
      if (isPlaying) {
        startTimer();
      } else {
        clearInterval(timer);
      }
    }

    function startTimer() {
      clearInterval(timer);
      timer = setInterval(() => {
        if (isPlaying) nextStep();
      }, 3200);
    }

    // Initialize
    applyState(0);
    startTimer();
  </script>
</body>
</html>

Characterizing Mass Media Channels: Print, Broadcast, and Digital

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <title>Media Channels Comparison</title>
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      background: #f8fafc;
      color: #1e293b;
      padding: 10px;
      user-select: none;
    }

    /* Filter Pills */
    .filter-bar {
      display: flex;
      justify-content: center;
      gap: 6px;
      margin-bottom: 10px;
      flex-wrap: wrap;
    }
    .pill-btn {
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: 20px;
      padding: 4px 10px;
      font-size: 11px;
      font-weight: 600;
      color: #64748b;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .pill-btn.active {
      background: #1e293b;
      color: #ffffff;
      border-color: #1e293b;
      box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }

    /* Grid Layout */
    .matrix {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 8px;
    }

    .column {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    /* Channel Headers */
    .channel-header {
      padding: 8px 4px;
      border-radius: 8px;
      text-align: center;
      font-weight: 700;
      font-size: 13px;
      letter-spacing: 0.3px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 2px;
    }
    .header-icon { font-size: 16px; }

    /* Column Color Themes */
    .print-theme {
      background: #eef2ff;
      color: #3730a3;
      border: 1px solid #c7d2fe;
    }
    .tv-theme {
      background: #f0fdfa;
      color: #115e59;
      border: 1px solid #99f6e4;
    }
    .web-theme {
      background: #faf5ff;
      color: #581c87;
      border: 1px solid #e9d5ff;
    }

    /* Metric Cards */
    .metric-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      padding: 6px 8px;
      min-height: 58px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      transition: opacity 0.25s ease, transform 0.2s ease, box-shadow 0.2s ease;
    }
    .metric-label {
      font-size: 9px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      color: #94a3b8;
      margin-bottom: 2px;
      display: flex;
      align-items: center;
      gap: 3px;
    }
    .metric-val {
      font-size: 11.5px;
      font-weight: 600;
      color: #334155;
      line-height: 1.25;
    }

    /* Column specific card accents on active */
    .print-card.highlight {
      border-color: #6366f1;
      box-shadow: 0 0 0 1.5px #6366f1;
      background: #f5f7ff;
    }
    .tv-card.highlight {
      border-color: #14b8a6;
      box-shadow: 0 0 0 1.5px #14b8a6;
      background: #f0fdfa;
    }
    .web-card.highlight {
      border-color: #a855f7;
      box-shadow: 0 0 0 1.5px #a855f7;
      background: #faf5ff;
    }

    .dimmed {
      opacity: 0.35;
    }
  </style>
</head>
<body>

  
  <div class="filter-bar">
    <button class="pill-btn active" data-pillar="all">All Pillars</button>
    <button class="pill-btn" data-pillar="struct">Structure</button>
    <button class="pill-btn" data-pillar="aud">Audience</button>
    <button class="pill-btn" data-pillar="speed">Speed</button>
    <button class="pill-btn" data-pillar="gate">Gatekeeping</button>
  </div>

  
  <div class="matrix">
    
    
    <div class="column">
      <div class="channel-header print-theme">
        <span class="header-icon">📰</span>
        <span>Print</span>
      </div>

      <div class="metric-card print-card" data-row="struct">
        <span class="metric-label">📄 Structure</span>
        <span class="metric-val">Static text &amp; photo</span>
      </div>

      <div class="metric-card print-card" data-row="aud">
        <span class="metric-label">👥 Audience</span>
        <span class="metric-val">Local subscribers</span>
      </div>

      <div class="metric-card print-card" data-row="speed">
        <span class="metric-label">⏱ Speed</span>
        <span class="metric-val">24-hr print cycle</span>
      </div>

      <div class="metric-card print-card" data-row="gate">
        <span class="metric-label">🔒 Gatekeeping</span>
        <span class="metric-val">Strict multi-editor desk</span>
      </div>
    </div>

    
    <div class="column">
      <div class="channel-header tv-theme">
        <span class="header-icon">📺</span>
        <span>Broadcast TV</span>
      </div>

      <div class="metric-card tv-card" data-row="struct">
        <span class="metric-label">📄 Structure</span>
        <span class="metric-val">Audiovisual &amp; live</span>
      </div>

      <div class="metric-card tv-card" data-row="aud">
        <span class="metric-label">👥 Audience</span>
        <span class="metric-val">Mass scheduled viewers</span>
      </div>

      <div class="metric-card tv-card" data-row="speed">
        <span class="metric-label">⏱ Speed</span>
        <span class="metric-val">Fixed schedule &amp; alerts</span>
      </div>

      <div class="metric-card tv-card" data-row="gate">
        <span class="metric-label">🔒 Gatekeeping</span>
        <span class="metric-val">Producers &amp; regulators</span>
      </div>
    </div>

    
    <div class="column">
      <div class="channel-header web-theme">
        <span class="header-icon">🌐</span>
        <span>Digital Web</span>
      </div>

      <div class="metric-card web-card" data-row="struct">
        <span class="metric-label">📄 Structure</span>
        <span class="metric-val">Interactive multimedia</span>
      </div>

      <div class="metric-card web-card" data-row="aud">
        <span class="metric-label">👥 Audience</span>
        <span class="metric-val">Global &amp; on-demand</span>
      </div>

      <div class="metric-card web-card" data-row="speed">
        <span class="metric-label">⏱ Speed</span>
        <span class="metric-val">Instant real-time feed</span>
      </div>

      <div class="metric-card web-card" data-row="gate">
        <span class="metric-label">🔒 Gatekeeping</span>
        <span class="metric-val">Algorithms &amp; post-check</span>
      </div>
    </div>

  </div>

  <script>
    const buttons = document.querySelectorAll('.pill-btn');
    const cards = document.querySelectorAll('.metric-card');

    buttons.forEach(btn => {
      btn.addEventListener('click', () => {
        buttons.forEach(b => b.classList.remove('active'));
        btn.classList.add('active');

        const pillar = btn.dataset.pillar;

        cards.forEach(card => {
          if (pillar === 'all') {
            card.classList.remove('dimmed', 'highlight');
          } else if (card.dataset.row === pillar) {
            card.classList.remove('dimmed');
            card.classList.add('highlight');
          } else {
            card.classList.remove('highlight');
            card.classList.add('dimmed');
          }
        });
      });
    });
  </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, sans-serif;
      background: #ffffff;
      color: #1e293b;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: space-between;
      min-height: 100%;
      padding: 12px;
      user-select: none;
    }

    /* Timeline Container */
    .timeline-container {
      width: 100%;
      max-width: 580px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      flex-grow: 1;
      justify-content: center;
    }

    /* Track */
    .track-wrapper {
      position: relative;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 8px;
      margin: 8px 0;
    }

    .track-line {
      position: absolute;
      top: 24px;
      left: 16%;
      right: 16%;
      height: 4px;
      background: #e2e8f0;
      z-index: 1;
    }

    .track-progress {
      position: absolute;
      top: 0;
      left: 0;
      height: 100%;
      width: 0%;
      background: #3b82f6;
      transition: width 0.4s ease;
    }

    /* Step Nodes */
    .media-card {
      position: relative;
      z-index: 2;
      background: #ffffff;
      border: 2px solid #e2e8f0;
      border-radius: 12px;
      padding: 10px 6px;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      cursor: pointer;
      transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.2s ease;
    }

    .media-card.active {
      border-color: #3b82f6;
      box-shadow: 0 4px 14px rgba(59, 130, 246, 0.2);
    }

    .icon-badge {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 6px;
      transition: background 0.3s ease;
    }

    .media-card.active .icon-badge {
      background: #dbeafe;
    }

    .time-stamp {
      font-size: 11px;
      font-weight: 700;
      color: #64748b;
      letter-spacing: 0.5px;
      margin-bottom: 2px;
    }

    .media-card.active .time-stamp {
      color: #3b82f6;
    }

    .media-title {
      font-size: 14px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 2px;
    }

    .media-desc {
      font-size: 11px;
      color: #64748b;
      line-height: 1.2;
    }

    /* Preview Showcase */
    .preview-box {
      width: 100%;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 10px;
      padding: 12px;
      min-height: 90px;
      display: flex;
      align-items: center;
      justify-content: space-around;
      gap: 12px;
    }

    .mockup-display {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 6px;
    }

    .mock-screen {
      width: 100%;
      max-width: 220px;
      height: 38px;
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: 6px;
      display: flex;
      align-items: center;
      padding: 0 8px;
      gap: 6px;
    }

    .mock-tag {
      font-size: 9px;
      font-weight: 800;
      padding: 2px 4px;
      border-radius: 3px;
      text-transform: uppercase;
    }

    .tag-digital { background: #fee2e2; color: #dc2626; }
    .tag-broadcast { background: #e0e7ff; color: #4338ca; }
    .tag-print { background: #e2e8f0; color: #334155; }

    .mock-bar {
      height: 6px;
      border-radius: 3px;
      background: #94a3b8;
      flex-grow: 1;
    }

    /* Tradeoff Meter */
    .tradeoff-meter {
      display: flex;
      flex-direction: column;
      gap: 6px;
      width: 130px;
    }

    .meter-row {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }

    .meter-label {
      font-size: 10px;
      font-weight: 600;
      color: #64748b;
      display: flex;
      justify-content: space-between;
    }

    .meter-bar-bg {
      width: 100%;
      height: 5px;
      background: #e2e8f0;
      border-radius: 3px;
      overflow: hidden;
    }

    .meter-bar-fill {
      height: 100%;
      background: #3b82f6;
      border-radius: 3px;
      transition: width 0.3s ease;
    }

    /* Controls */
    .controls {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      margin-top: 4px;
    }

    .ctrl-btn {
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: 6px;
      padding: 6px 12px;
      font-size: 12px;
      font-weight: 600;
      color: #1e293b;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      transition: background 0.2s;
    }

    .ctrl-btn:hover {
      background: #f1f5f9;
    }

    .step-pill {
      font-size: 11px;
      font-weight: 600;
      color: #64748b;
      padding: 0 4px;
    }
  </style>
</head>
<body>

  <div class="timeline-container">
    
    
    <div class="track-wrapper">
      <div class="track-line">
        <div id="trackProgress" class="track-progress"></div>
      </div>

      <div class="media-card active" onclick="setStep(0)" id="card-0">
        <div class="icon-badge">📱</div>
        <div class="time-stamp">2:03 PM</div>
        <div class="media-title">Digital</div>
        <div class="media-desc">Alert & liveblog</div>
      </div>

      <div class="media-card" onclick="setStep(1)" id="card-1">
        <div class="icon-badge">📺</div>
        <div class="time-stamp">5:00 PM</div>
        <div class="media-title">Broadcast</div>
        <div class="media-desc">Live footage</div>
      </div>

      <div class="media-card" onclick="setStep(2)" id="card-2">
        <div class="icon-badge">📰</div>
        <div class="time-stamp">6:00 AM</div>
        <div class="media-title">Print</div>
        <div class="media-desc">Deep analysis</div>
      </div>
    </div>

    
    <div class="preview-box">
      <div class="mockup-display" id="mockupArea">
        <div class="mock-screen">
          <span class="mock-tag tag-digital">ALERT</span>
          <div class="mock-bar" style="width: 70%"></div>
        </div>
      </div>

      <div class="tradeoff-meter">
        <div class="meter-row">
          <div class="meter-label"><span>Speed</span><span id="speedVal">Instant</span></div>
          <div class="meter-bar-bg"><div id="speedBar" class="meter-bar-fill" style="width: 100%"></div></div>
        </div>
        <div class="meter-row">
          <div class="meter-label"><span>Depth</span><span id="depthVal">Brief</span></div>
          <div class="meter-bar-bg"><div id="depthBar" class="meter-bar-fill" style="width: 25%"></div></div>
        </div>
      </div>
    </div>

    
    <div class="controls">
      <button class="ctrl-btn" onclick="prevStep()">← Prev</button>
      <button class="ctrl-btn" id="playBtn" onclick="togglePlay()">⏸ Pause</button>
      <button class="ctrl-btn" onclick="nextStep()">Next →</button>
    </div>

  </div>

  <script>
    const data = [
      {
        tag: 'LIVE ALERT',
        tagClass: 'tag-digital',
        speed: 'Instant',
        speedPct: '100%',
        depth: 'Brief',
        depthPct: '25%',
        barWidth: '65%'
      },
      {
        tag: 'EVENING NEWS',
        tagClass: 'tag-broadcast',
        speed: 'Hours',
        speedPct: '60%',
        depth: 'Visual',
        depthPct: '60%',
        barWidth: '85%'
      },
      {
        tag: 'MORNING PAPER',
        tagClass: 'tag-print',
        speed: 'Next Day',
        speedPct: '20%',
        depth: 'In-Depth',
        depthPct: '100%',
        barWidth: '95%'
      }
    ];

    let current = 0;
    let playing = true;
    let timer = null;

    function render() {
      // Cards
      for (let i = 0; i < 3; i++) {
        const card = document.getElementById('card-' + i);
        if (i === current) {
          card.classList.add('active');
        } else {
          card.classList.remove('active');
        }
      }

      // Track line progress
      const progress = document.getElementById('trackProgress');
      progress.style.width = (current * 50) + '%';

      // Showcase content
      const cur = data[current];
      const mockup = document.getElementById('mockupArea');
      mockup.innerHTML = `
        <div class="mock-screen">
          <span class="mock-tag ${cur.tagClass}">${cur.tag}</span>
          <div class="mock-bar" style="width: ${cur.barWidth}"></div>
        </div>
      `;

      // Meters
      document.getElementById('speedVal').textContent = cur.speed;
      document.getElementById('speedBar').style.width = cur.speedPct;
      document.getElementById('depthVal').textContent = cur.depth;
      document.getElementById('depthBar').style.width = cur.depthPct;
    }

    function setStep(idx) {
      current = idx;
      render();
    }

    function nextStep() {
      current = (current + 1) % 3;
      render();
    }

    function prevStep() {
      current = (current - 1 + 3) % 3;
      render();
    }

    function togglePlay() {
      playing = !playing;
      const btn = document.getElementById('playBtn');
      if (playing) {
        btn.textContent = '⏸ Pause';
        startTimer();
      } else {
        btn.textContent = '▶ Play';
        clearInterval(timer);
      }
    }

    function startTimer() {
      clearInterval(timer);
      timer = setInterval(() => {
        nextStep();
      }, 3500);
    }

    // Initialize
    render();
    startTimer();
  </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;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      -webkit-tap-highlight-color: transparent;
    }

    body {
      background-color: #f8f9fa;
      color: #1e2945;
      padding: 12px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      min-height: 100%;
    }

    .nav-bar {
      display: flex;
      gap: 6px;
      background: #eef2f6;
      padding: 4px;
      border-radius: 10px;
    }

    .channel-btn {
      flex: 1;
      border: none;
      background: transparent;
      padding: 8px 4px;
      font-size: 13px;
      font-weight: 600;
      color: #64748b;
      border-radius: 7px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
    }

    .channel-btn.active {
      background: #ffffff;
      color: #2563eb;
      box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    }

    .pillars-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 8px;
      flex: 1;
    }

    @media (min-width: 560px) {
      .pillars-grid {
        grid-template-columns: repeat(4, 1fr);
      }
    }

    .pillar-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 10px;
      padding: 12px 10px;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 6px;
      box-shadow: 0 1px 2px rgba(0,0,0,0.03);
      cursor: pointer;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .pillar-card:active {
      border-color: #2563eb;
    }

    .pillar-icon {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: #eff6ff;
      color: #2563eb;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
    }

    .pillar-title {
      font-size: 13px;
      font-weight: 700;
      color: #1e2945;
      line-height: 1.2;
    }

    .pillar-sub {
      font-size: 11px;
      color: #64748b;
      font-weight: 500;
    }

    .status-badge {
      margin-top: auto;
      width: 100%;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 6px;
      padding: 6px 4px;
      font-size: 12px;
      font-weight: 600;
      color: #2563eb;
      min-height: 30px;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background 0.2s ease, color 0.2s ease;
    }

    .speed-gauge {
      width: 100%;
      height: 4px;
      background: #e2e8f0;
      border-radius: 2px;
      overflow: hidden;
      margin-top: 2px;
    }

    .speed-fill {
      height: 100%;
      background: #2563eb;
      border-radius: 2px;
      transition: width 0.3s ease;
    }

    .banner {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      padding: 8px 12px;
      text-align: center;
      font-size: 12px;
      font-weight: 600;
      color: #475569;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
    }

    .banner-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: #2563eb;
      flex-shrink: 0;
    }
  </style>
</head>
<body>

  <div class="nav-bar" role="tablist">
    <button class="channel-btn active" id="btn-print" onclick="setChannel('print')">
      <span>📰</span> Print
    </button>
    <button class="channel-btn" id="btn-broadcast" onclick="setChannel('broadcast')">
      <span>📺</span> Broadcast
    </button>
    <button class="channel-btn" id="btn-digital" onclick="setChannel('digital')">
      <span>📱</span> Digital
    </button>
  </div>

  <div class="pillars-grid">
    <div class="pillar-card">
      <div class="pillar-icon">📐</div>
      <div class="pillar-title">Structure</div>
      <div class="pillar-sub">Format & Layout</div>
      <div class="status-badge" id="val-structure">Static Grid</div>
      <div class="speed-gauge"><div class="speed-fill" id="fill-structure" style="width: 25%;"></div></div>
    </div>

    <div class="pillar-card">
      <div class="pillar-icon">👥</div>
      <div class="pillar-title">Audience</div>
      <div class="pillar-sub">Reach & Interaction</div>
      <div class="status-badge" id="val-audience">One-Way Reader</div>
      <div class="speed-gauge"><div class="speed-fill" id="fill-audience" style="width: 30%;"></div></div>
    </div>

    <div class="pillar-card">
      <div class="pillar-icon">⏱️</div>
      <div class="pillar-title">Speed</div>
      <div class="pillar-sub">Deadline Cycle</div>
      <div class="status-badge" id="val-speed">24-Hour Cycle</div>
      <div class="speed-gauge"><div class="speed-fill" id="fill-speed" style="width: 20%;"></div></div>
    </div>

    <div class="pillar-card">
      <div class="pillar-icon">🛡️</div>
      <div class="pillar-title">Gatekeeping</div>
      <div class="pillar-sub">Verification Filters</div>
      <div class="status-badge" id="val-gatekeeping">Pre-Print Multi-Layer</div>
      <div class="speed-gauge"><div class="speed-fill" id="fill-gatekeeping" style="width: 95%;"></div></div>
    </div>
  </div>

  <div class="banner">
    <span class="banner-dot"></span>
    Every mass media channel balances speed against verification depth.
  </div>

  <script>
    const channelData = {
      print: {
        structure: 'Static Layout',
        structureFill: '30%',
        audience: 'One-Way Direct',
        audienceFill: '30%',
        speed: 'Daily Edition',
        speedFill: '25%',
        gatekeeping: 'Multi-Layer Editorial',
        gateFill: '95%'
      },
      broadcast: {
        structure: 'Linear Schedule',
        structureFill: '65%',
        audience: 'Mass Broadcast',
        audienceFill: '70%',
        speed: 'Hourly / Live',
        speedFill: '75%',
        gatekeeping: 'Producer Review',
        gateFill: '75%'
      },
      digital: {
        structure: 'Fluid Hyperlink',
        structureFill: '100%',
        audience: 'Two-Way Social',
        audienceFill: '100%',
        speed: 'Instant Realtime',
        speedFill: '100%',
        gatekeeping: 'Post-Publish Algorithmic',
        gateFill: '35%'
      }
    };

    function setChannel(type) {
      document.querySelectorAll('.channel-btn').forEach(btn => btn.classList.remove('active'));
      const activeBtn = document.getElementById('btn-' + type);
      if (activeBtn) activeBtn.classList.add('active');

      const data = channelData[type];
      if (!data) return;

      document.getElementById('val-structure').textContent = data.structure;
      document.getElementById('fill-structure').style.width = data.structureFill;

      document.getElementById('val-audience').textContent = data.audience;
      document.getElementById('fill-audience').style.width = data.audienceFill;

      document.getElementById('val-speed').textContent = data.speed;
      document.getElementById('fill-speed').style.width = data.speedFill;

      document.getElementById('val-gatekeeping').textContent = data.gatekeeping;
      document.getElementById('fill-gatekeeping').style.width = data.gateFill;
    }
  </script>
</body>
</html>

OGE.8.MM.4

Aligned learning resources

Related diagrams