:root {
      --bg: #0d1117;
      --card: #161b22;
      --border: #30363d;
      --text: #e6edf3;
      --text-muted: #7d8590;
      --accent: #58a6ff;
      --m1: #238636;
      --m15: #9e6a03;
      --m2: #8957e5;
      --done: #238636;
      --ready: #1f6feb;
      --inprogress: #9e6a03;
      --backlog: #7d8590;
      --blocked: #da3633;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
      background: var(--bg);
      color: var(--text);
      min-height: 100vh;
      padding: 24px;
    }

    .header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 32px;
      flex-wrap: wrap;
      gap: 12px;
    }

    .header h1 {
      font-size: 24px;
      font-weight: 600;
      color: var(--text);
    }

    .header-meta {
      color: var(--text-muted);
      font-size: 13px;
    }

    .controls {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }

    .btn {
      padding: 8px 16px;
      border-radius: 6px;
      border: 1px solid var(--border);
      background: var(--card);
      color: var(--text);
      font-size: 13px;
      cursor: pointer;
      transition: all 0.15s;
    }

    .btn:hover { background: var(--border); }
    .btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
    .btn-refresh { background: var(--m1); border-color: var(--m1); }
    .btn-refresh:hover { opacity: 0.85; }

    .summary-bar {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 12px;
      margin-bottom: 32px;
    }

    .summary-card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 16px;
    }

    .summary-card.m1 { border-left: 3px solid var(--m1); }
    .summary-card.m15 { border-left: 3px solid var(--m15); }
    .summary-card.m2 { border-left: 3px solid var(--m2); }

    .summary-card .label {
      font-size: 12px;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 8px;
    }

    .summary-card .numbers {
      display: flex;
      gap: 16px;
      font-size: 13px;
    }

    .summary-card .numbers span { color: var(--text-muted); }
    .summary-card .numbers strong { color: var(--text); }

    .milestone-block {
      margin-bottom: 32px;
    }

    .milestone-header {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
    }

    .milestone-badge {
      font-size: 13px;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 20px;
      color: #fff;
    }

    .milestone-badge.m1 { background: var(--m1); }
    .milestone-badge.m15 { background: var(--m15); }
    .milestone-badge.m2 { background: var(--m2); }

    .milestone-count { color: var(--text-muted); font-size: 13px; }

    .status-group { margin-bottom: 16px; }

    .status-group-header {
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      color: var(--text-muted);
      margin-bottom: 8px;
      padding-left: 4px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
    }

    .status-dot.done { background: var(--done); }
    .status-dot.ready { background: var(--ready); }
    .status-dot.inprogress { background: var(--inprogress); }
    .status-dot.backlog { background: var(--backlog); }
    .status-dot.blocked { background: var(--blocked); }

    .issues-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 8px;
    }

    .issue-card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 6px;
      padding: 10px 12px;
      cursor: pointer;
      transition: border-color 0.15s;
    }

    .issue-card:hover { border-color: var(--accent); }

    .issue-key {
      font-size: 12px;
      font-weight: 600;
      color: var(--accent);
      margin-bottom: 4px;
    }

    .issue-summary {
      font-size: 13px;
      color: var(--text);
      line-height: 1.4;
    }

    .issue-meta {
      display: flex;
      gap: 8px;
      margin-top: 6px;
      flex-wrap: wrap;
    }

    .issue-tag {
      font-size: 10px;
      padding: 2px 6px;
      border-radius: 4px;
      background: var(--border);
      color: var(--text-muted);
    }

    .filter-row {
      display: flex;
      gap: 8px;
      margin-bottom: 24px;
      flex-wrap: wrap;
      align-items: center;
    }

    .filter-label {
      font-size: 13px;
      color: var(--text-muted);
    }

    .filter-group {
      display: flex;
      gap: 4px;
      flex-wrap: wrap;
    }

    .filter-btn {
      padding: 5px 10px;
      font-size: 12px;
      border-radius: 16px;
      border: 1px solid var(--border);
      background: transparent;
      color: var(--text-muted);
      cursor: pointer;
      transition: all 0.15s;
    }

    .filter-btn:hover { color: var(--text); border-color: var(--text-muted); }
    .filter-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

    .progress-bar-container {
      background: var(--border);
      border-radius: 4px;
      height: 6px;
      overflow: hidden;
      margin-top: 8px;
    }

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

    .progress-bar-fill.m1 { background: var(--m1); }
    .progress-bar-fill.m15 { background: var(--m15); }
    .progress-bar-fill.m2 { background: var(--m2); }

    .no-data {
      text-align: center;
      padding: 60px 20px;
      color: var(--text-muted);
    }

    .no-data h3 { margin-bottom: 8px; color: var(--text); }

    .loading { text-align: center; padding: 40px; color: var(--text-muted); }

    .timestamp {
      font-size: 11px;
      color: var(--text-muted);
      text-align: right;
      margin-top: 32px;
    }

    @media (max-width: 600px) {
      body { padding: 16px; }
      .issues-grid { grid-template-columns: 1fr; }
      .summary-bar { grid-template-columns: 1fr 1fr; }
    }