bojanrajkovic · March 21, 2026 21:56
diff --git a/atc-playground.html b/atc-playground.html
 <!DOCTYPE html>
 <html lang="en">
 <head>
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>ATC — Action Traffic Control UI Explorer</title>
 <style>
  :root {
    --bg: #0a0e14;
    --bg2: #131820;
    --bg3: #1a2030;
    --border: #2a3040;
    --text: #c8d0dc;
    --text-dim: #6a7588;
    --accent: #4a9eff;

    --queued: #4a9eff;
    --running: #e8b820;
    --success: #2ecc71;
    --failed: #e74c3c;
    --cancelled: #6a7588;

    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  }

  .light {
    --bg: #f0f2f5;
    --bg2: #ffffff;
    --bg3: #e8ecf0;
    --border: #d0d5dc;
    --text: #1a2030;
    --text-dim: #6a7588;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }

  body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    display: flex;
    height: 100vh;
    overflow: hidden;
  }

  /* === CONTROLS PANEL === */
  #controls {
    width: 280px;
    min-width: 280px;
    background: var(--bg2);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    padding: 16px;
  }

  #controls h1 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--accent);
    font-family: var(--mono);
    letter-spacing: 1px;
  }

  #controls .subtitle {
    font-size: 11px;
    color: var(--text-dim);
    margin-bottom: 16px;
  }

  .control-group {
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
  }

  .control-group:last-child { border-bottom: none; }

  .control-group h3 {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dim);
    margin-bottom: 10px;
  }

  .control-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
  }

  .control-row label {
    font-size: 12px;
    color: var(--text);
  }

  select, input[type="range"] {
    background: var(--bg3);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 12px;
    font-family: var(--font);
  }

  select { cursor: pointer; }
  input[type="range"] { width: 100px; }

  .toggle {
    position: relative;
    width: 36px;
    height: 20px;
    background: var(--bg3);
    border-radius: 10px;
    cursor: pointer;
    border: 1px solid var(--border);
    transition: background 0.2s;
  }

  .toggle.on { background: var(--accent); border-color: var(--accent); }

  .toggle::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 14px;
    height: 14px;
    background: white;
    border-radius: 50%;
    transition: transform 0.2s;
  }

  .toggle.on::after { transform: translateX(16px); }

  .btn {
    background: var(--bg3);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
    font-family: var(--font);
    transition: background 0.15s;
  }

  .btn:hover { background: var(--border); }

  .btn-row {
    display: flex;
    gap: 6px;
    margin-top: 8px;
    flex-wrap: wrap;
  }

  .preset-btn {
    flex: 1;
    min-width: 70px;
    text-align: center;
    font-size: 10px;
    padding: 5px 8px;
  }

  .preset-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
  }

  /* === MAIN AREA === */
  #main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  /* === RUNNER BAR === */
  #runner-bar {
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    padding: 10px 16px;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
  }

  .runway {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
  }

  .runway-label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-dim);
    min-width: 120px;
  }

  .runway-bar-bg {
    width: 80px;
    height: 8px;
    background: var(--bg3);
    border-radius: 4px;
    overflow: hidden;
  }

  .runway-bar-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s, background 0.3s;
  }

  .runway-count {
    font-size: 10px;
    font-family: var(--mono);
    min-width: 50px;
  }

  .runway-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
  }

  /* === PREVIEW AREA === */
  #preview {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
  }

  /* === KANBAN LAYOUT === */
  .kanban {
    display: flex;
    gap: 12px;
    height: 100%;
  }

  .kanban-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
  }

  .kanban-header {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dim);
    padding: 8px 12px;
    border-bottom: 2px solid var(--border);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .kanban-header .count {
    background: var(--bg3);
    border-radius: 10px;
    padding: 1px 8px;
    font-size: 10px;
    font-family: var(--mono);
  }

  .kanban-items {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  /* === LIST LAYOUT === */
  .list-view {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  /* === TREEMAP LAYOUT === */
  .treemap {
    display: flex;
    flex-direction: column;
    gap: 12px;
    height: 100%;
  }

  .treemap-group {
    flex: 1;
    min-height: 0;
  }

  .treemap-group-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dim);
    padding: 0 4px 6px;
    font-family: var(--mono);
  }

  .treemap-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    height: calc(100% - 24px);
    align-content: stretch;
  }

  /* === JOB CARD === */
  .job-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 10px 12px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s;
  }

  .job-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
  }

  .job-card.status-queued::before { background: var(--queued); }
  .job-card.status-running::before { background: var(--running); }
  .job-card.status-success::before { background: var(--success); }
  .job-card.status-failed::before { background: var(--failed); }
  .job-card.status-cancelled::before { background: var(--cancelled); }

  /* Pulsating halo for running */
  .job-card.status-running {
    animation: pulse-border 2s ease-in-out infinite;
  }

  @keyframes pulse-border {
    0%, 100% { box-shadow: 0 0 0 0 rgba(232, 184, 32, 0); }
    50% { box-shadow: 0 0 8px 2px rgba(232, 184, 32, 0.25); }
  }

  .job-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
  }

  .job-status-icon {
    font-size: 14px;
    flex-shrink: 0;
    width: 18px;
    text-align: center;
  }

  .job-status-icon.queued { color: var(--queued); }
  .job-status-icon.running { color: var(--running); }
  .job-status-icon.success { color: var(--success); }
  .job-status-icon.failed { color: var(--failed); }
  .job-status-icon.cancelled { color: var(--cancelled); }

  .job-name {
    font-size: 13px;
    font-weight: 600;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .job-duration {
    font-size: 11px;
    font-family: var(--mono);
    color: var(--text-dim);
    flex-shrink: 0;
  }

  .job-meta {
    font-size: 10px;
    color: var(--text-dim);
    margin-bottom: 6px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .job-progress {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
  }

  .job-progress-label {
    font-size: 10px;
    color: var(--text-dim);
    font-family: var(--mono);
    flex-shrink: 0;
  }

  .job-progress-bar {
    flex: 1;
    height: 4px;
    background: var(--bg3);
    border-radius: 2px;
    overflow: hidden;
  }

  .job-progress-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.3s;
  }

  .status-queued .job-progress-fill { background: var(--queued); }
  .status-running .job-progress-fill { background: var(--running); }
  .status-success .job-progress-fill { background: var(--success); }
  .status-failed .job-progress-fill { background: var(--failed); }

  .job-runner {
    font-size: 10px;
    color: var(--text-dim);
    font-family: var(--mono);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .job-runner .runner-icon { margin-right: 4px; }

  /* === COMPACT CARD === */
  .job-card.compact {
    padding: 6px 10px;
  }

  .job-card.compact .job-meta,
  .job-card.compact .job-progress,
  .job-card.compact .job-runner { display: none; }

  .job-card.compact .job-name { font-size: 12px; }

  /* === TREEMAP CARD === */
  .job-card.treemap-card {
    padding: 12px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    min-width: 80px;
    min-height: 60px;
    flex-grow: 1;
  }

  .job-card.treemap-card .job-header {
    flex-direction: column;
    gap: 4px;
    width: 100%;
  }

  .job-card.treemap-card .job-status-icon { font-size: 32px; }
  .job-card.treemap-card.treemap-lg .job-status-icon { font-size: 48px; }
  .job-card.treemap-card.treemap-sm .job-status-icon { font-size: 20px; }

  .job-card.treemap-card .job-name {
    font-size: 12px;
    white-space: normal;
    line-height: 1.3;
    word-break: break-word;
  }
  .job-card.treemap-card.treemap-lg .job-name { font-size: 14px; }
  .job-card.treemap-card.treemap-sm .job-name { font-size: 9px; }

  .job-card.treemap-card .job-duration {
    font-size: 11px;
    margin-top: 2px;
  }
  .job-card.treemap-card.treemap-lg .job-duration { font-size: 14px; }
  .job-card.treemap-card.treemap-sm .job-duration { font-size: 9px; }

  .job-card.treemap-card .job-meta {
    display: block;
    font-size: 9px;
    margin-bottom: 0;
  }
  .job-card.treemap-card.treemap-sm .job-meta { display: none; }

  .job-card.treemap-card .job-progress { display: none; }
  .job-card.treemap-card .job-runner { display: none; }

  /* === PROMPT OUTPUT === */
  #prompt-area {
    background: var(--bg2);
    border-top: 1px solid var(--border);
    padding: 12px 16px;
    max-height: 120px;
    overflow-y: auto;
  }

  #prompt-area .prompt-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
  }

  #prompt-area .prompt-header span {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-dim);
  }

  #prompt-text {
    font-size: 12px;
    line-height: 1.5;
    color: var(--text);
  }

  .copy-btn {
    background: var(--accent);
    border: none;
    color: white;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 10px;
    cursor: pointer;
    font-family: var(--font);
    transition: opacity 0.15s;
  }

  .copy-btn:hover { opacity: 0.85; }

  /* === SCROLLBAR === */
  ::-webkit-scrollbar { width: 6px; }
  ::-webkit-scrollbar-track { background: transparent; }
  ::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
 </style>
 </head>
 <body>

 <div id="controls">
  <h1>⟐ ATC</h1>
  <div class="subtitle">Action Traffic Control — UI Explorer</div>

  <div class="control-group">
    <h3>Presets</h3>
    <div class="btn-row">
      <button class="btn preset-btn active" onclick="applyPreset('radar')">Radar</button>
      <button class="btn preset-btn" onclick="applyPreset('cockpit')">Cockpit</button>
      <button class="btn preset-btn" onclick="applyPreset('wall')">Wall</button>
      <button class="btn preset-btn" onclick="applyPreset('minimal')">Minimal</button>
    </div>
  </div>

  <div class="control-group">
    <h3>Layout</h3>
    <div class="control-row">
      <label>View</label>
      <select id="layout" onchange="s('layout',this.value);updateAll()">
        <option value="kanban">Kanban</option>
        <option value="list">List</option>
        <option value="treemap">Treemap (HD)</option>
      </select>
    </div>
    <div class="control-row">
      <label>Card density</label>
      <select id="density" onchange="s('compact',this.value==='compact');updateAll()">
        <option value="expanded">Expanded</option>
        <option value="compact">Compact</option>
      </select>
    </div>
  </div>

  <div class="control-group">
    <h3>Theme</h3>
    <div class="control-row">
      <label>Dark mode</label>
      <div class="toggle on" id="theme-toggle" onclick="toggleTheme()"></div>
    </div>
    <div class="control-row">
      <label>Halo animation</label>
      <div class="toggle on" id="halo-toggle" onclick="toggleHalo()"></div>
    </div>
    <div class="control-row">
      <label>Show runners</label>
      <div class="toggle on" id="runner-toggle" onclick="toggleRunners()"></div>
    </div>
  </div>

  <div class="control-group">
    <h3>Card style</h3>
    <div class="control-row">
      <label>Border radius</label>
      <input type="range" id="radius" min="0" max="16" value="6" oninput="s('radius',+this.value);updateAll()">
    </div>
    <div class="control-row">
      <label>Left accent bar</label>
      <div class="toggle on" id="accent-toggle" onclick="toggleAccent()"></div>
    </div>
  </div>

  <div class="control-group">
    <h3>Runners</h3>
    <div class="control-row">
      <label>Linux runners</label>
      <input type="range" id="linux-runners" min="1" max="10" value="5" oninput="s('linuxRunners',+this.value);updateAll()">
    </div>
    <div class="control-row">
      <label>macOS runners</label>
      <input type="range" id="macos-runners" min="1" max="5" value="2" oninput="s('macosRunners',+this.value);updateAll()">
    </div>
  </div>

  <div class="control-group">
    <h3>Simulation</h3>
    <div class="btn-row">
      <button class="btn" onclick="addJob('queued')">+ Queued</button>
      <button class="btn" onclick="addJob('running')">+ Running</button>
      <button class="btn" onclick="addJob('failed')">+ Failed</button>
    </div>
    <div class="btn-row" style="margin-top:6px">
      <button class="btn" onclick="advanceJobs()">Advance all</button>
      <button class="btn" onclick="resetJobs()">Reset</button>
    </div>
  </div>
 </div>

 <div id="main">
  <div id="runner-bar"></div>
  <div id="preview"></div>
  <div id="prompt-area">
    <div class="prompt-header">
      <span>Design prompt</span>
      <button class="copy-btn" onclick="copyPrompt()">Copy</button>
    </div>
    <div id="prompt-text"></div>
  </div>
 </div>

 <script>
 const SYMBOLS = { queued: '◐', running: '▶', success: '✓', failed: '✗', cancelled: '⊘' };
 const COLORS = { queued: '#4a9eff', running: '#e8b820', success: '#2ecc71', failed: '#e74c3c', cancelled: '#6a7588' };

 const REPOS = ['loupe-app/loupe', 'loupe-app/issue-backend', 'coderinserepeat-com/coderinserepeat.com', 'loupe-app/design-system', 'coderinserepeat-com/home.coderinserepeat.com'];
 const WORKFLOWS = ['CI', 'Deploy', 'Release', 'Lint & Test', 'Build & Publish'];
 const BRANCHES = ['main', 'feat/oauth-flow', 'fix/websocket-reconnect', 'chore/deps', 'feat/atc-dashboard'];
 const STEPS = ['Set up job', 'Run actions/checkout@v4', 'Install dependencies', 'Run pnpm install', 'Run lint', 'Run type-check', 'Run unit tests', 'Run integration tests', 'Run playwright tests', 'Build', 'Upload artifacts', 'Deploy to staging', 'Post cleanup'];
 const RUNNERS_LINUX = ['loupe-homelab-brajkovic-linux-vbb7l-runner-r86pc', 'loupe-homelab-brajkovic-linux-vbb7l-runner-wcgm5', 'loupe-homelab-brajkovic-linux-abc12-runner-k9x3f'];
 const RUNNERS_MACOS = ['loupe-homelab-brajkovic-macos-1', 'loupe-homelab-brajkovic-macos-2'];

 const DEFAULTS = {
  layout: 'kanban', compact: false, dark: true, halo: true,
  showRunners: true, radius: 6, accentBar: true,
  linuxRunners: 5, macosRunners: 2
 };

 let state = { ...DEFAULTS };
 let jobs = [];
 let jobId = 0;

 function s(key, val) { state[key] = val; }

 function generateJobs() {
  jobs = [];
  // 2 queued
  for (let i = 0; i < 2; i++) jobs.push(makeJob('queued'));
  // 4 running
  for (let i = 0; i < 4; i++) jobs.push(makeJob('running'));
  // 3 success
  for (let i = 0; i < 3; i++) jobs.push(makeJob('success'));
  // 1 failed
  jobs.push(makeJob('failed'));
  // 1 cancelled
  jobs.push(makeJob('cancelled'));
 }

 function makeJob(status) {
  const repo = REPOS[Math.floor(Math.random() * REPOS.length)];
  const workflow = WORKFLOWS[Math.floor(Math.random() * WORKFLOWS.length)];
  const branch = BRANCHES[Math.floor(Math.random() * BRANCHES.length)];
  const totalSteps = 8 + Math.floor(Math.random() * 5);
  let currentStep;
  if (status === 'queued') currentStep = 0;
  else if (status === 'running') currentStep = 1 + Math.floor(Math.random() * (totalSteps - 2));
  else currentStep = totalSteps;

  const isLinux = Math.random() > 0.3;
  const runnerPool = isLinux ? RUNNERS_LINUX : RUNNERS_MACOS;
  const runner = status === 'queued' ? null : runnerPool[Math.floor(Math.random() * runnerPool.length)];

  const duration = status === 'queued' ? Math.floor(Math.random() * 30) :
                   status === 'running' ? 30 + Math.floor(Math.random() * 180) :
                   60 + Math.floor(Math.random() * 300);

  return {
    id: ++jobId, status, repo, workflow, branch,
    totalSteps, currentStep, runner, duration,
    stepName: STEPS[Math.min(currentStep, STEPS.length - 1)],
    labels: isLinux ? ['self-hosted', 'linux'] : ['self-hosted', 'macos', 'arm64']
  };
 }

 function addJob(status) {
  jobs.unshift(makeJob(status));
  updateAll();
 }

 function advanceJobs() {
  jobs.forEach(j => {
    if (j.status === 'queued') {
      j.status = 'running';
      j.currentStep = 1;
      j.runner = (j.labels.includes('macos') ? RUNNERS_MACOS : RUNNERS_LINUX)[0];
    } else if (j.status === 'running') {
      j.currentStep++;
      j.duration += 15;
      if (j.currentStep >= j.totalSteps) {
        j.status = Math.random() > 0.15 ? 'success' : 'failed';
        j.currentStep = j.totalSteps;
      }
      j.stepName = STEPS[Math.min(j.currentStep, STEPS.length - 1)];
    }
  });
  updateAll();
 }

 function resetJobs() { generateJobs(); updateAll(); }

 function fmtDuration(s) {
  if (s < 60) return `${s}s`;
  const m = Math.floor(s / 60), sec = s % 60;
  return sec > 0 ? `${m}m ${sec}s` : `${m}m`;
 }

 function renderCard(job) {
  const isTreemap = state.layout === 'treemap';
  const cls = [
    'job-card',
    `status-${job.status}`,
    state.compact && !isTreemap ? 'compact' : '',
    isTreemap ? 'treemap-card' : '',
    !state.halo && job.status === 'running' ? 'no-halo' : '',
    !state.accentBar ? 'no-accent' : ''
  ].filter(Boolean).join(' ');

  const style = `border-radius:${state.radius}px;` +
    (!state.accentBar ? '--accent-w:0;' : '') +
    (!state.halo && job.status === 'running' ? 'animation:none;' : '');

  const pct = job.totalSteps > 0 ? Math.round((job.currentStep / job.totalSteps) * 100) : 0;

  return `<div class="${cls}" style="${style}">
    <div class="job-header">
      <span class="job-status-icon ${job.status}">${SYMBOLS[job.status]}</span>
      <span class="job-name">${job.workflow}</span>
      <span class="job-duration">${fmtDuration(job.duration)}</span>
    </div>
    <div class="job-meta">${job.repo} · ${job.branch}</div>
    <div class="job-progress">
      <span class="job-progress-label">${job.currentStep}/${job.totalSteps}</span>
      <div class="job-progress-bar"><div class="job-progress-fill" style="width:${pct}%"></div></div>
      <span class="job-progress-label">${job.stepName}</span>
    </div>
    ${job.runner ? `<div class="job-runner"><span class="runner-icon">⊞</span>${job.runner}</div>` : ''}
  </div>`;
 }

 function renderRunnerBar() {
  const bar = document.getElementById('runner-bar');
  if (!state.showRunners) { bar.style.display = 'none'; return; }
  bar.style.display = 'flex';

  const linuxUsed = jobs.filter(j => j.status === 'running' && j.labels.includes('linux')).length;
  const macosUsed = jobs.filter(j => j.status === 'running' && j.labels.includes('macos')).length;
  const linuxQueued = jobs.filter(j => j.status === 'queued' && j.labels.includes('linux')).length;
  const macosQueued = jobs.filter(j => j.status === 'queued' && j.labels.includes('macos')).length;

  const runners = [
    { label: 'self-hosted/linux', used: linuxUsed, total: state.linuxRunners, queued: linuxQueued },
    { label: 'self-hosted/macos', used: macosUsed, total: state.macosRunners, queued: macosQueued },
    { label: 'github-hosted', used: 0, total: '∞', queued: 0, elastic: true }
  ];

  bar.innerHTML = runners.map(r => {
    const pct = r.elastic ? 0 : Math.min((r.used / r.total) * 100, 100);
    const color = r.elastic ? COLORS.cancelled :
                  pct >= 100 ? COLORS.failed :
                  pct >= 70 ? COLORS.running : COLORS.success;
    const queueNote = r.queued > 0 ? ` (${r.queued} queued)` : '';
    return `<div class="runway">
      <div class="runway-dot" style="background:${color}"></div>
      <span class="runway-label">${r.label}</span>
      <div class="runway-bar-bg"><div class="runway-bar-fill" style="width:${pct}%;background:${color}"></div></div>
      <span class="runway-count" style="color:${color}">${r.used}/${r.total}${queueNote}</span>
    </div>`;
  }).join('');
 }

 function renderPreview() {
  const preview = document.getElementById('preview');
  const queued = jobs.filter(j => j.status === 'queued');
  const running = jobs.filter(j => j.status === 'running');
  const completed = jobs.filter(j => ['success', 'failed', 'cancelled'].includes(j.status));

  if (state.layout === 'kanban') {
    preview.innerHTML = `<div class="kanban">
      <div class="kanban-col">
        <div class="kanban-header">Queued <span class="count">${queued.length}</span></div>
        <div class="kanban-items">${queued.map(renderCard).join('')}</div>
      </div>
      <div class="kanban-col">
        <div class="kanban-header">Running <span class="count">${running.length}</span></div>
        <div class="kanban-items">${running.map(renderCard).join('')}</div>
      </div>
      <div class="kanban-col">
        <div class="kanban-header">Completed <span class="count">${completed.length}</span></div>
        <div class="kanban-items">${completed.map(renderCard).join('')}</div>
      </div>
    </div>`;
  } else if (state.layout === 'list') {
    const sorted = [...jobs].sort((a, b) => {
      const order = { running: 0, queued: 1, failed: 2, cancelled: 3, success: 4 };
      return (order[a.status] ?? 5) - (order[b.status] ?? 5);
    });
    preview.innerHTML = `<div class="list-view">${sorted.map(renderCard).join('')}</div>`;
  } else {
    // Group by repo, size by duration
    const byRepo = {};
    jobs.forEach(j => {
      if (!byRepo[j.repo]) byRepo[j.repo] = [];
      byRepo[j.repo].push(j);
    });

    const maxDur = Math.max(...jobs.map(j => j.duration), 1);

    let html = '<div class="treemap">';
    for (const [repo, repoJobs] of Object.entries(byRepo)) {
      html += `<div class="treemap-group">`;
      html += `<div class="treemap-group-label">${repo}</div>`;
      html += `<div class="treemap-grid">`;
      repoJobs.forEach(job => {
        const weight = Math.max(job.duration / maxDur, 0.15);
        const grow = Math.round(weight * 10);
        const sizeClass = weight > 0.6 ? 'treemap-lg' : weight < 0.25 ? 'treemap-sm' : '';
        const cls = [
          'job-card', 'treemap-card', sizeClass,
          `status-${job.status}`,
          !state.halo && job.status === 'running' ? 'no-halo' : '',
          !state.accentBar ? 'no-accent' : ''
        ].filter(Boolean).join(' ');

        const style = `border-radius:${state.radius}px;flex-grow:${grow};` +
          (!state.halo && job.status === 'running' ? 'animation:none;' : '');

        html += `<div class="${cls}" style="${style}">
          <div class="job-header">
            <span class="job-status-icon ${job.status}">${SYMBOLS[job.status]}</span>
            <span class="job-name">${job.workflow}</span>
            <span class="job-duration">${fmtDuration(job.duration)}</span>
          </div>
          <div class="job-meta">${job.branch}</div>
        </div>`;
      });
      html += `</div></div>`;
    }
    html += '</div>';
    preview.innerHTML = html;
  }
 }

 function updatePrompt() {
  const parts = [];

  parts.push(`Build an ATC (Action Traffic Control) dashboard using a **${state.layout}** layout`);

  if (state.compact) parts.push('with **compact** card density (icon + name + duration only)');
  else parts.push('with **expanded** cards showing step progress, runner name, and repo/branch context');

  if (!state.dark) parts.push('using a **light** theme');
  else parts.push('using a **dark radar** theme');

  if (state.radius !== 6) parts.push(`with ${state.radius}px border radius on cards`);
  if (!state.accentBar) parts.push('without left status accent bars');
  if (state.halo) parts.push('with **pulsating halo animation** on running jobs (Concourse-inspired)');
  if (state.showRunners) parts.push(`showing runner capacity bar (${state.linuxRunners} Linux, ${state.macosRunners} macOS runners)`);

  parts.push(`Status indicators use color + symbol duality: queued (blue ◐), running (amber ▶), success (green ✓), failed (red ✗), cancelled (gray ⊘)`);

  document.getElementById('prompt-text').textContent = parts.join('. ') + '.';
 }

 function updateAll() {
  renderRunnerBar();
  renderPreview();
  updatePrompt();
  syncControls();
 }

 function syncControls() {
  document.getElementById('layout').value = state.layout;
  document.getElementById('density').value = state.compact ? 'compact' : 'expanded';
  document.getElementById('radius').value = state.radius;
  document.getElementById('linux-runners').value = state.linuxRunners;
  document.getElementById('macos-runners').value = state.macosRunners;
  document.getElementById('theme-toggle').className = 'toggle' + (state.dark ? ' on' : '');
  document.getElementById('halo-toggle').className = 'toggle' + (state.halo ? ' on' : '');
  document.getElementById('runner-toggle').className = 'toggle' + (state.showRunners ? ' on' : '');
  document.getElementById('accent-toggle').className = 'toggle' + (state.accentBar ? ' on' : '');

  document.querySelectorAll('.preset-btn').forEach(b => b.classList.remove('active'));
 }

 function toggleTheme() { state.dark = !state.dark; document.body.className = state.dark ? '' : 'light'; updateAll(); }
 function toggleHalo() { state.halo = !state.halo; updateAll(); }
 function toggleRunners() { state.showRunners = !state.showRunners; updateAll(); }
 function toggleAccent() { state.accentBar = !state.accentBar; updateAll(); }

 function applyPreset(name) {
  document.querySelectorAll('.preset-btn').forEach(b => b.classList.remove('active'));
  event.target.classList.add('active');

  const presets = {
    radar: { layout: 'kanban', compact: false, dark: true, halo: true, showRunners: true, radius: 6, accentBar: true },
    cockpit: { layout: 'list', compact: false, dark: true, halo: true, showRunners: true, radius: 4, accentBar: true },
    wall: { layout: 'treemap', compact: true, dark: true, halo: true, showRunners: true, radius: 8, accentBar: false },
    minimal: { layout: 'kanban', compact: true, dark: false, halo: false, showRunners: false, radius: 4, accentBar: false }
  };

  Object.assign(state, presets[name]);
  document.body.className = state.dark ? '' : 'light';
  updateAll();
 }

 function copyPrompt() {
  const text = document.getElementById('prompt-text').textContent;
  navigator.clipboard.writeText(text);
  const btn = document.querySelector('.copy-btn');
  btn.textContent = 'Copied!';
  setTimeout(() => btn.textContent = 'Copy', 1500);
 }

 // Init
 generateJobs();
 updateAll();

 // Tick running job durations
 setInterval(() => {
  jobs.forEach(j => { if (j.status === 'running') j.duration++; });
  updateAll();
 }, 1000);
 </script>

 </body>
 </html>
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