:root {
    --bg: #f4f6f8;
    --panel: #ffffff;
    --panel-2: #eef1f4;
    --border: #dde3e9;
    --text: #16202b;
    --text-muted: #5b6875;
    --amber: #b3720f;
    --amber-bg: #fbeed9;
    --green: #16794f;
    --green-bg: #dcf3e7;
    --red: #b3261e;
    --red-bg: #fbe0de;
    --blue: #2c5c8a;
    --blue-bg: #e3ecf4;
    --gold: #cf9f2e;
    --silver: #9aa4ac;
    --bronze: #b3733a;
    --gold-bg: #fdf3d9;
    --silver-bg: #eef1f3;
    --bronze-bg: #f7e6d7;
    --mono: 'IBM Plex Mono', monospace;
    --sans: 'IBM Plex Sans', sans-serif;
  }
  :root:not([data-theme="light"]) {
    @media (prefers-color-scheme: dark) {
      --bg: #0d1117;
      --panel: #151b23;
      --panel-2: #1b232d;
      --border: #262f3a;
      --text: #e6edf3;
      --text-muted: #8b98a8;
      --amber: #f0a93f;
      --amber-bg: #3a2c12;
      --green: #45c491;
      --green-bg: #113126;
      --red: #f0645a;
      --red-bg: #3a1917;
      --blue: #79aede;
      --blue-bg: #142434;
      --gold: #e0b23f;
      --silver: #c3cad1;
      --bronze: #cf8f52;
      --gold-bg: #3a2f10;
      --silver-bg: #232a31;
      --bronze-bg: #33230f;
    }
  }
  :root[data-theme="dark"] {
    --bg: #0d1117;
    --panel: #151b23;
    --panel-2: #1b232d;
    --border: #262f3a;
    --text: #e6edf3;
    --text-muted: #8b98a8;
    --amber: #f0a93f;
    --amber-bg: #3a2c12;
    --green: #45c491;
    --green-bg: #113126;
    --red: #f0645a;
    --red-bg: #3a1917;
    --blue: #79aede;
    --blue-bg: #142434;
    --gold: #e0b23f;
    --silver: #c3cad1;
    --bronze: #cf8f52;
    --gold-bg: #3a2f10;
    --silver-bg: #232a31;
    --bronze-bg: #33230f;
  }

  * { box-sizing: border-box; }
  html, body { margin: 0; padding: 0; }
  body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    -webkit-font-smoothing: antialiased;
    line-height: 1.4;
  }
  .wrap { max-width: 1180px; margin: 0 auto; padding: 28px 20px 60px; }

  header.top { display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 14px; margin-bottom: 18px; }
  header.top h1 { font-size: 21px; font-weight: 700; margin: 0 0 4px; letter-spacing: -0.01em; }
  header.top p { margin: 0; color: var(--text-muted); font-size: 13px; font-family: var(--mono); }
  .search-box {
    background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
    padding: 8px 12px; font-family: var(--sans); font-size: 13px; color: var(--text);
    width: 240px; max-width: 100%;
  }
  .search-box::placeholder { color: var(--text-muted); }

  .alert-banner {
    border: 1px solid var(--red); background: var(--red-bg); color: var(--red);
    border-radius: 10px; padding: 12px 16px; font-size: 13.5px; margin-bottom: 18px;
    display: flex; align-items: center; gap: 8px;
  }
  .alert-banner b { font-weight: 600; }

  .kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 20px; }
  @media (max-width: 760px) { .kpi-grid { grid-template-columns: repeat(2, 1fr); } }
  .kpi-card {
    background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
    padding: 14px 16px;
  }
  .kpi-card .label { font-size: 11.5px; color: var(--text-muted); margin-bottom: 6px; }
  .kpi-card .value { font-family: var(--mono); font-size: 22px; font-weight: 600; }
  .kpi-card .value.online { color: var(--green); }
  .kpi-card .sub { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

  .panels-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 22px; }
  @media (max-width: 760px) { .panels-row { grid-template-columns: 1fr; } }
  .panel {
    background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
    padding: 16px;
  }
  .panel h2 { font-size: 13px; font-weight: 600; margin: 0 0 4px; }
  .panel .legend { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
  .panel .legend .bar { flex: 1; height: 7px; border-radius: 4px; }
  .panel .legend .bar.green-bar { background: linear-gradient(to right, rgba(69,196,145,0.85), rgba(69,196,145,0.05)); }
  .panel .legend .bar.red-bar { background: linear-gradient(to right, rgba(240,100,90,0.85), rgba(240,100,90,0.05)); }
  .panel .legend span { font-size: 10.5px; color: var(--text-muted); white-space: nowrap; }

  .marquee-outer {
    position: relative; height: 208px; overflow: hidden;
    -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 12px, #000 calc(100% - 12px), transparent 100%);
    mask-image: linear-gradient(to bottom, transparent 0, #000 12px, #000 calc(100% - 12px), transparent 100%);
  }
  .marquee-track { animation: marquee-scroll linear infinite; }
  .marquee-outer:hover .marquee-track { animation-play-state: paused; }
  @keyframes marquee-scroll { from { transform: translateY(0); } to { transform: translateY(-50%); } }
  @media (prefers-reduced-motion: reduce) { .marquee-track { animation: none; } }

  .perf-row { display: flex; align-items: center; padding: 8px 8px; border-radius: 8px; margin-bottom: 4px; font-size: 13.5px; cursor: pointer; transition: transform 0.1s; }
  .perf-row:hover { transform: translateX(2px); }
  .perf-row .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding-right: 8px; color: var(--text); }
  .rank-badge {
    width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0; margin-right: 10px;
    display: inline-flex; align-items: center; justify-content: center;
    font-family: var(--mono); font-size: 11px; font-weight: 700;
    background: rgba(255,255,255,0.55); color: var(--text);
  }
  .pill { font-family: var(--mono); font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 20px; white-space: nowrap; }
  .pill.good { background: var(--green-bg); color: var(--green); }
  .pill.bad { background: var(--red-bg); color: var(--red); }
  .pill.mid { background: var(--amber-bg); color: var(--amber); }

  .filters { display: flex; gap: 6px; margin-bottom: 10px; flex-wrap: wrap; }
  .filter-btn {
    font-family: var(--sans); font-size: 12.5px; padding: 6px 12px; border-radius: 20px;
    border: 1px solid var(--border); background: var(--panel); color: var(--text-muted);
    cursor: pointer;
  }
  .filter-btn.active { background: var(--blue-bg); color: var(--blue); border-color: var(--blue); }

  table { width: 100%; border-collapse: collapse; font-size: 13px; }
  thead th {
    text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: 0.03em;
    color: var(--text-muted); font-weight: 600; padding: 8px 10px; cursor: pointer;
    border-bottom: 1px solid var(--border); white-space: nowrap;
  }
  thead th:hover { color: var(--text); }
  tbody td { padding: 9px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
  tbody tr { cursor: pointer; }
  tbody tr:hover { background: var(--panel-2); }
  tbody tr.selected { background: var(--blue-bg); }
  .mono { font-family: var(--mono); }
  .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; vertical-align: middle; }
  .dot.online { background: var(--green); }
  .dot.offline { background: var(--text-muted); }
  .dot.flatlined { background: var(--red); }
  .dot.zero_production { background: var(--amber); }
  .dot.data_anomaly { background: var(--blue); }
  .status-label { font-size: 12.5px; }

  .table-wrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 6px 10px; }

  .detail {
    margin-top: 16px; background: var(--panel); border: 1px solid var(--border);
    border-radius: 10px; padding: 18px 20px;
  }
  .detail h3 { margin: 0 0 4px; font-size: 15px; }
  .detail .client { color: var(--text-muted); font-size: 12.5px; margin-bottom: 14px; }
  .detail-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
  @media (max-width: 700px) { .detail-grid { grid-template-columns: repeat(2, 1fr); } }
  .detail-grid .item .label { font-size: 11px; color: var(--text-muted); margin-bottom: 3px; }
  .detail-grid .item .val { font-family: var(--mono); font-size: 16px; font-weight: 600; }
  .flag-note { margin-top: 12px; font-size: 12.5px; padding: 8px 10px; border-radius: 6px; }
  .flag-note.warn { background: var(--amber-bg); color: var(--amber); }
  .flag-note.err { background: var(--red-bg); color: var(--red); }

  .chart-wrap { margin-top: 16px; }
  .chart-legend { display: flex; gap: 14px; margin-bottom: 6px; flex-wrap: wrap; }
  .chart-legend span { font-size: 11px; color: var(--text-muted); display: flex; align-items: center; gap: 5px; }
  .chart-legend .sw { width: 10px; height: 3px; border-radius: 2px; display: inline-block; }
  .chart-svg { width: 100%; height: auto; display: block; }
  .chart-empty { font-size: 12px; color: var(--text-muted); padding: 10px 0; }
  .pulse-ring { animation: pulse-ring 1.8s ease-out infinite; transform-origin: center; transform-box: fill-box; }
  .pulse-core { }
  @keyframes pulse-ring { 0% { opacity: 0.55; transform: scale(1); } 100% { opacity: 0; transform: scale(2.6); } }
  @media (prefers-reduced-motion: reduce) { .pulse-ring { animation: none; opacity: 0; } }

  .modal-overlay {
    display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.55);
    align-items: center; justify-content: center; z-index: 100; padding: 20px;
  }
  .modal-overlay.open { display: flex; }
  .modal-box {
    background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
    padding: 22px 24px; max-width: 460px; width: 100%; position: relative;
    box-shadow: 0 20px 60px rgba(0,0,0,0.35);
  }
  .modal-close {
    position: absolute; top: 14px; right: 16px; background: none; border: none;
    font-size: 18px; color: var(--text-muted); cursor: pointer; line-height: 1;
  }
  .modal-close:hover { color: var(--text); }
  .modal-box.wide { max-width: 560px; }
  .input-date { margin-bottom: 12px; }
  .input-date label { font-size: 12px; color: var(--text-muted); display: block; margin-bottom: 4px; }
  .input-date input[type=date] {
    font-family: var(--sans); font-size: 13px; padding: 6px 10px; border-radius: 6px;
    border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  }
  .input-list { max-height: 360px; overflow-y: auto; border-top: 1px solid var(--border); }
  .input-row { display: flex; align-items: center; justify-content: space-between; padding: 7px 2px; border-bottom: 1px solid var(--border); gap: 10px; }
  .input-row .name { font-size: 13px; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .input-row input[type=number] {
    width: 110px; font-family: var(--mono); font-size: 13px; padding: 5px 8px;
    border-radius: 6px; border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  }
  .save-btn {
    margin-top: 14px; width: 100%; padding: 10px; border-radius: 8px; border: none;
    background: var(--blue); color: #fff; font-family: var(--sans); font-size: 13.5px;
    font-weight: 600; cursor: pointer;
  }
  .save-btn:hover { opacity: 0.9; }
  .save-status { font-size: 12px; color: var(--text-muted); margin-top: 8px; text-align: center; min-height: 16px; }

  footer.note { margin-top: 26px; font-size: 11.5px; color: var(--text-muted); text-align: center; }