*, *::before, *::after { box-sizing: border-box; }

  :root {
    --ink:        #10161f;
    --ink-2:      #475467;
    --ink-3:      #8792a4;
    --rule:       #e3e8ef;
    --rule-2:     #eef1f5;
    --canvas:     #f6f7f9;
    --surface:    #ffffff;

    --accent:     #0b4a8f;
    --accent-ink: #08386c;
    --accent-wash:#eaf1f9;

    --ok:         #10714b;
    --ok-wash:    #e6f4ee;
    --warn:       #8a5300;
    --warn-wash:  #fdf3e2;
    --bad:        #a5271f;
    --bad-wash:   #fdeceb;

    --shadow: 0 1px 2px rgba(16,22,31,.05), 0 1px 3px rgba(16,22,31,.04);
  }

  html, body { margin: 0; padding: 0; }

  body {
    background: var(--canvas);
    color: var(--ink);
    font-family: 'IBM Plex Sans Arabic', system-ui, -apple-system, sans-serif;
    font-size: 13.5px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
  }

  .num {
    font-family: 'IBM Plex Mono', ui-monospace, monospace;
    font-variant-numeric: tabular-nums;
    font-feature-settings: 'tnum';
    direction: ltr;
    unicode-bidi: isolate;
  }

  /* ------------------------------------------------------------ Login View */
  #loginScreen {
    position: fixed; inset: 0; background: var(--canvas);
    display: flex; align-items: center; justify-content: center;
    z-index: 9999; padding: 20px;
  }
  #loginScreen[hidden] { display: none !important; }
  .login-card {
    background: var(--surface); border: 1px solid var(--rule);
    border-radius: 8px; box-shadow: 0 12px 30px rgba(16,22,31,0.08);
    width: 100%; max-width: 400px; padding: 32px 28px;
  }
  .login-title {
    font-size: 20px; font-weight: 700; margin: 0 0 4px;
    text-align: center; color: var(--ink);
  }
  .login-sub {
    font-size: 13px; color: var(--ink-3); text-align: center; margin-bottom: 24px;
  }

  /* ------------------------------------------------------------ masthead */
  header.masthead {
    background: var(--surface);
    border-bottom: 1px solid var(--rule);
    padding: 0 clamp(16px, 4vw, 40px);
  }
  .masthead-inner {
    max-width: 1400px; margin: 0 auto;
    display: flex; align-items: center; gap: 20px;
    min-height: 68px; flex-wrap: wrap;
  }
  .wordmark { display: flex; flex-direction: column; gap: 1px; margin-inline-end: auto; }
  .wordmark .latin {
    font-size: 19px; font-weight: 700; letter-spacing: -.01em;
    color: var(--ink); direction: ltr;
  }
  .wordmark .latin b { color: var(--accent); font-weight: 700; }
  .wordmark .arabic { font-size: 12px; color: var(--ink-3); font-weight: 500; }

  .masthead-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
  .stamp { font-size: 12.5px; color: var(--ink-2); }
  .stamp strong { color: var(--ink); font-weight: 600; }

  button {
    font-family: inherit; font-size: 12.5px; font-weight: 500;
    border: 1px solid var(--rule); background: var(--surface); color: var(--ink);
    padding: 6.5px 13px; border-radius: 4px; cursor: pointer;
    transition: background .12s, border-color .12s, color .12s;
    display: inline-flex; align-items: center; gap: 5px; justify-content: center;
  }
  button:hover { background: var(--canvas); border-color: var(--ink-3); }
  button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
  button.primary:hover { background: var(--accent-ink); border-color: var(--accent-ink); }
  button.danger { background: var(--bad-wash); color: var(--bad); border-color: #f2c9c6; }
  button.danger:hover { background: #f9d6d4; }
  button.btn-sm { padding: 3.5px 8.5px; font-size: 11.5px; border-radius: 3px; }

  /* ----------------------------------------------------------------- nav */
  nav.tabs {
    background: var(--surface);
    border-bottom: 1px solid var(--rule);
    padding: 0 clamp(16px, 4vw, 40px);
    overflow-x: auto;
  }
  .tabs-inner { max-width: 1400px; margin: 0 auto; display: flex; gap: 2px; }
  .tab {
    border: none; background: none; border-radius: 0;
    border-bottom: 2px solid transparent;
    padding: 12px 16px; font-size: 13.5px; font-weight: 500;
    color: var(--ink-2); white-space: nowrap; cursor: pointer;
  }
  .tab:hover { background: var(--canvas); border-color: transparent; }
  .tab[aria-selected="true"] { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }
  .tab .badge {
    display: inline-block; margin-inline-start: 6px;
    background: var(--bad-wash); color: var(--bad);
    font-size: 11px; font-weight: 600; padding: 1px 6px; border-radius: 9px;
  }

  /* ---------------------------------------------------------------- main */
  main { max-width: 1400px; margin: 0 auto; padding: 22px clamp(16px, 4vw, 40px) 56px; }
  .panel[hidden] { display: none; }

  /* ----------------------------------------------------------------- kpi */
  .kpi-strip {
    display: grid; gap: 1px; margin-bottom: 22px;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    background: var(--rule); border: 1px solid var(--rule);
    border-radius: 6px; overflow: hidden; box-shadow: var(--shadow);
  }
  .kpi { background: var(--surface); padding: 14px 16px 15px; }
  .kpi-label {
    font-size: 11.5px; font-weight: 600; color: var(--ink-3);
    text-transform: uppercase; letter-spacing: .04em; margin-bottom: 5px;
  }
  .kpi-value { font-size: 27px; font-weight: 600; line-height: 1.1; letter-spacing: -.02em; }
  .kpi-sub { font-size: 11.5px; color: var(--ink-3); margin-top: 3px; }
  .kpi.is-ok    .kpi-value { color: var(--ok); }
  .kpi.is-warn  .kpi-value { color: var(--warn); }
  .kpi.is-bad   .kpi-value { color: var(--bad); }

  /* ---------------------------------------------------------------- card */
  .card {
    background: var(--surface); border: 1px solid var(--rule);
    border-radius: 6px; box-shadow: var(--shadow); margin-bottom: 22px;
    overflow: hidden;
  }
  .card-head {
    padding: 13px 16px; border-bottom: 1px solid var(--rule);
    display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  }
  .card-title { font-size: 14.5px; font-weight: 600; margin: 0; margin-inline-end: auto; }
  .card-note { font-size: 12px; color: var(--ink-3); }
  .card-body { padding: 16px; }

  /* --------------------------------------------------------------- table */
  .table-scroll { overflow-x: auto; }
  table { width: 100%; border-collapse: collapse; }
  thead th {
    text-align: right; font-size: 11.5px; font-weight: 600; color: var(--ink-3);
    text-transform: uppercase; letter-spacing: .035em;
    padding: 9px 14px; background: #fbfcfd;
    border-bottom: 1px solid var(--rule); white-space: nowrap;
  }
  tbody td {
    padding: 10px 14px; border-bottom: 1px solid var(--rule-2);
    vertical-align: middle;
  }
  tbody tr:last-child td { border-bottom: none; }
  tbody tr:hover { background: #fbfcfd; }
  td.right, th.right { text-align: left; }
  td.center, th.center { text-align: center; }

  .name { font-weight: 500; }
  .sub  { font-size: 11.5px; color: var(--ink-3); }

  /* --------------------------------------------------------------- pills */
  .pill {
    display: inline-flex; align-items: center; gap: 5px;
    font-size: 11.5px; font-weight: 600;
    padding: 2.5px 9px; border-radius: 11px; white-space: nowrap;
  }
  .pill::before {
    content: ''; width: 5px; height: 5px; border-radius: 50%;
    background: currentColor; flex-shrink: 0;
  }
  .pill.in     { background: var(--ok-wash);   color: var(--ok); }
  .pill.out    { background: var(--rule-2);    color: var(--ink-2); }
  .pill.absent { background: var(--bad-wash);  color: var(--bad); }
  .pill.late   { background: var(--warn-wash); color: var(--warn); }
  .pill.plain  { background: var(--accent-wash); color: var(--accent-ink); }
  .pill.plain::before, .pill.late::before { display: none; }

  .flag-chip {
    display: inline-block; font-size: 11px; font-weight: 500;
    background: var(--warn-wash); color: var(--warn);
    padding: 2px 7px; border-radius: 3px; margin: 1px 0 1px 3px;
  }
  .flag-chip.sev { background: var(--bad-wash); color: var(--bad); }

  [hidden] { display: none !important; }

  /* -------------------------------------------------------------- filters */
  .filters { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
  input[type="date"], input[type="search"], input[type="text"], input[type="password"], input[type="time"], input[type="number"], select {
    font-family: inherit; font-size: 13.5px; color: var(--ink);
    border: 1px solid var(--rule); border-radius: 4px;
    padding: 7px 12px; background: var(--surface);
    min-height: 38px;
  }
  select { cursor: pointer; }
  input:focus, select:focus { outline: 2px solid var(--accent-wash); border-color: var(--accent); }
  label.field { display: flex; flex-direction: column; gap: 6px; font-size: 12.5px; color: var(--ink-2); font-weight: 500; }
  label.field[hidden] { display: none !important; }

  /* --------------------------------------------------------- breakdown bar */
  .breakdown { display: flex; flex-direction: column; gap: 9px; }
  .bd-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center; }
  .bd-label { font-size: 12.5px; }
  .bd-meter { grid-column: 1 / -1; height: 5px; background: var(--rule-2); border-radius: 3px; overflow: hidden; }
  .bd-fill { height: 100%; background: var(--bad); border-radius: 3px; }
  .bd-count { font-size: 12.5px; font-weight: 600; color: var(--ink-2); }

  /* -------------------------------------------------------------- setting */
  .setting-grid { display: grid; gap: 1px; background: var(--rule-2); border: 1px solid var(--rule-2); border-radius: 5px; overflow: hidden; }
  .setting {
    background: var(--surface); padding: 11px 14px;
    display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center;
  }
  .setting-label { font-size: 13px; font-weight: 500; }
  .setting-hint { font-size: 11.5px; color: var(--ink-3); margin-top: 1px; }
  .toggle-btn {
    font-size: 11.5px; font-weight: 600; padding: 3px 12px; border-radius: 12px; cursor: pointer; border: none;
  }
  .toggle-btn.on  { background: var(--ok-wash); color: var(--ok); }
  .toggle-btn.off { background: var(--rule-2); color: var(--ink-2); }

  .empty { padding: 34px 16px; text-align: center; color: var(--ink-3); font-size: 13px; }

  .callout {
    border-inline-start: 3px solid var(--accent);
    background: var(--accent-wash); color: var(--accent-ink);
    padding: 11px 14px; border-radius: 0 4px 4px 0;
    font-size: 12.5px; margin-bottom: 16px;
  }
  .callout.warn { border-color: #c98a12; background: var(--warn-wash); color: var(--warn); }
  .callout strong { font-weight: 600; }

  /* --------------------------------------------------------------- modal */
  .modal-overlay {
    position: fixed; inset: 0; background: rgba(16, 22, 31, 0.55);
    display: flex; align-items: center; justify-content: center;
    z-index: 10000; padding: 20px; backdrop-filter: blur(2px);
  }
  .modal-overlay[hidden] { display: none !important; }
  .modal-card {
    background: var(--surface); border: 1px solid var(--rule);
    border-radius: 8px; box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    width: 100%; max-width: 500px; max-height: 90vh; overflow-y: auto;
  }
  .modal-head {
    padding: 14px 18px; border-bottom: 1px solid var(--rule);
    display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; background: var(--surface); z-index: 2;
  }
  .modal-title { font-size: 15px; font-weight: 700; margin: 0; }
  .modal-body { padding: 18px; display: flex; flex-direction: column; gap: 14px; }
  .modal-foot {
    padding: 12px 18px; border-top: 1px solid var(--rule);
    background: var(--canvas); display: flex; gap: 10px; justify-content: flex-end; position: sticky; bottom: 0;
  }
  .token-box {
    background: var(--canvas); border: 1px dashed var(--accent);
    padding: 14px; border-radius: 6px; text-align: center;
    font-family: 'IBM Plex Mono', monospace; font-size: 18px; font-weight: 700;
    color: var(--accent-ink); word-break: break-all; user-select: all;
  }

  footer {
    max-width: 1400px; margin: 0 auto;
    padding: 0 clamp(16px, 4vw, 40px) 34px;
    font-size: 11.5px; color: var(--ink-3); text-align: center;
  }

  @media (max-width: 720px) {
    .kpi-value { font-size: 23px; }
    thead th, tbody td { padding: 9px 11px; }
  }