:root{
    --paper:#FFFFFF;
    --surface:#F6F8FB;
    --surface-alt:#EEF2F8;
    --line:#E3E8F0;
    --ink:#16233F;
    --ink-soft:#55637A;
    --muted:#93A1B5;
    --press:#2451E0;
    --press-dark:#1B3EB8;
    --press-soft:#E8EEFE;
    --good:#1C9A6C;
    --good-soft:#E4F5EE;
    --warn:#DE8A2E;
    --warn-soft:#FBF0E1;
    --bad:#DB4747;
    --bad-soft:#FCEAEA;
    --radius:10px;
  }
  *{box-sizing:border-box;}
  body{margin:0;background:var(--paper);color:var(--ink);font-family:'Inter',sans-serif;-webkit-font-smoothing:antialiased;}
  h1,h2,h3,.display{font-family:'Space Grotesk',sans-serif;}
  .mono{font-family:'IBM Plex Mono',monospace;}

  /* ---------- Register mark signature ---------- */
  .reg{display:inline-block;width:14px;height:14px;flex-shrink:0;}
  .reg svg{width:100%;height:100%;display:block;}

  /* ---------- App shell ---------- */
  .app{display:flex;min-height:100vh;}
  .sidebar{width:236px;flex-shrink:0;background:var(--ink);color:#fff;display:flex;flex-direction:column;padding:22px 14px;position:sticky;top:0;height:100vh;}
  .brand{display:flex;align-items:center;gap:10px;padding:4px 10px 22px 10px;border-bottom:1px solid rgba(255,255,255,0.1);margin-bottom:18px;}
  .brand .reg svg circle,.brand .reg svg path{stroke:#fff;}
  .brand-text{font-size:15px;font-weight:600;letter-spacing:0.02em;}
  .brand-sub{font-size:10px;color:rgba(255,255,255,0.45);letter-spacing:0.08em;text-transform:uppercase;margin-top:1px;}

  .nav-group{margin-bottom:18px;}
  .nav-label{font-size:10px;text-transform:uppercase;letter-spacing:0.09em;color:rgba(255,255,255,0.35);padding:0 12px;margin-bottom:6px;}
  .nav-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:8px;font-size:13.5px;color:rgba(255,255,255,0.72);cursor:pointer;font-weight:500;position:relative;}
  .nav-item svg{width:16px;height:16px;opacity:0.85;flex-shrink:0;}
  .nav-item:hover{background:rgba(255,255,255,0.06);color:#fff;}
  .nav-item.active{background:rgba(255,255,255,0.1);color:#fff;}
  .nav-item.active::before{content:"";position:absolute;left:-14px;top:50%;transform:translateY(-50%);width:3px;height:16px;background:var(--press);border-radius:2px;}
  .nav-badge{margin-left:auto;background:var(--bad);color:#fff;font-size:10px;font-weight:600;padding:1px 6px;border-radius:20px;}

  .sidebar-foot{margin-top:auto;padding:12px;border-top:1px solid rgba(255,255,255,0.1);display:flex;align-items:center;gap:10px;}
  .avatar{width:30px;height:30px;border-radius:50%;background:var(--press);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;}
  .foot-name{font-size:12.5px;font-weight:600;}
  .foot-role{font-size:10.5px;color:rgba(255,255,255,0.45);}

  .main{flex:1;min-width:0;}
  .topbar{position:sticky;top:0;background:rgba(255,255,255,0.92);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);padding:16px 32px;display:flex;align-items:center;justify-content:space-between;z-index:10;}
  .topbar-title{font-size:20px;font-weight:600;}
  .topbar-sub{font-size:12.5px;color:var(--ink-soft);margin-top:2px;}
  .topbar-actions{display:flex;gap:10px;align-items:center;}
  .btn{border:none;font-family:'Inter',sans-serif;font-weight:600;font-size:13px;padding:9px 16px;border-radius:8px;cursor:pointer;display:flex;align-items:center;gap:6px;}
  .btn-primary{background:var(--press);color:#fff;}
  .btn-primary:hover{background:var(--press-dark);}
  .btn-ghost{background:var(--surface-alt);color:var(--ink);}
  .btn-ghost:hover{background:var(--line);}
  .search{display:flex;align-items:center;gap:8px;background:var(--surface-alt);border:1px solid var(--line);border-radius:8px;padding:8px 12px;font-size:12.5px;color:var(--muted);width:200px;}

  .content{padding:26px 32px 60px 32px;}
  .tab-panel{display:none;}
  .tab-panel.active{display:block;}

  /* ---------- KPI cards ---------- */
  .kpi-row{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-bottom:22px;}
  .kpi-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;}
  .kpi-label{font-size:11.5px;color:var(--ink-soft);font-weight:600;text-transform:uppercase;letter-spacing:0.04em;display:flex;align-items:center;gap:6px;margin-bottom:10px;}
  .kpi-value{font-size:26px;font-weight:700;display:flex;align-items:baseline;gap:6px;}
  .kpi-delta{font-size:11.5px;font-weight:600;margin-top:6px;display:flex;align-items:center;gap:4px;}
  .up{color:var(--good);} .down{color:var(--bad);} .flat{color:var(--muted);}

  /* ---------- Grid + panels ---------- */
  .grid-2{display:grid;grid-template-columns:1.3fr 1fr;gap:14px;margin-bottom:14px;}
  .grid-2b{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px;}
  .panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;}
  .panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
  .panel-title{font-size:14px;font-weight:600;display:flex;align-items:center;gap:8px;}
  .panel-title .reg svg circle,.panel-title .reg svg path{stroke:var(--press);}
  .panel-note{font-size:11px;color:var(--muted);}

  /* bars */
  .bar-row{display:flex;align-items:center;gap:10px;margin-bottom:11px;}
  .bar-label{width:120px;font-size:12px;color:var(--ink-soft);flex-shrink:0;font-weight:500;}
  .bar-track{flex:1;height:16px;background:var(--surface-alt);border-radius:5px;overflow:hidden;display:flex;}
  .bar-fill{height:100%;}
  .bar-value{width:56px;text-align:right;font-size:12px;font-weight:600;font-family:'IBM Plex Mono',monospace;flex-shrink:0;}

  .oee-row{margin-bottom:14px;}
  .oee-top{display:flex;justify-content:space-between;font-size:12px;margin-bottom:5px;}
  .oee-machine{font-weight:600;color:var(--ink);}
  .oee-pct{font-family:'IBM Plex Mono',monospace;font-weight:600;}
  .oee-track{height:14px;border-radius:4px;background:var(--surface-alt);display:flex;overflow:hidden;}
  .seg-a{background:var(--press);} .seg-p{background:#7FA3F5;} .seg-q{background:#C7D7FB;}
  .legend{display:flex;gap:14px;margin-top:10px;font-size:11px;color:var(--ink-soft);}
  .legend span{display:flex;align-items:center;gap:5px;}
  .dot{width:8px;height:8px;border-radius:2px;display:inline-block;}

  table{width:100%;border-collapse:collapse;font-size:12.5px;}
  th{text-align:left;font-size:10.5px;text-transform:uppercase;letter-spacing:0.04em;color:var(--muted);font-weight:600;padding:8px 10px;border-bottom:1px solid var(--line);}
  td{padding:10px;border-bottom:1px solid var(--line);color:var(--ink);}
  tr:last-child td{border-bottom:none;}
  tr:hover td{background:var(--surface-alt);}
  .id-cell{font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--press);font-weight:600;}

  .badge{display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:600;padding:3px 9px;border-radius:20px;}
  .badge-good{background:var(--good-soft);color:var(--good);}
  .badge-warn{background:var(--warn-soft);color:var(--warn);}
  .badge-bad{background:var(--bad-soft);color:var(--bad);}
  .badge-neutral{background:var(--surface-alt);color:var(--ink-soft);}
  .badge-press{background:var(--press-soft);color:var(--press);}

  .row-overdue td{background:var(--bad-soft) !important;}

  /* Donut */
  .donut-wrap{display:flex;align-items:center;gap:22px;}
  .donut{width:130px;height:130px;border-radius:50%;flex-shrink:0;}
  .donut-legend{display:flex;flex-direction:column;gap:10px;font-size:12.5px;}
  .donut-legend .dot{width:9px;height:9px;border-radius:50%;}
  .donut-legend .lv{margin-left:auto;font-weight:600;font-family:'IBM Plex Mono',monospace;}
  .donut-legend li{display:flex;align-items:center;gap:8px;list-style:none;}
  .donut-legend ul{padding:0;margin:0;display:flex;flex-direction:column;gap:9px;}

  /* Kanban */
  .kanban{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;}
  .kcol-head{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:0.04em;color:var(--ink-soft);margin-bottom:10px;display:flex;justify-content:space-between;align-items:center;}
  .kcount{background:var(--surface-alt);color:var(--ink-soft);font-family:'IBM Plex Mono',monospace;font-size:10.5px;padding:1px 7px;border-radius:20px;}
  .kcard{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:11px 12px;margin-bottom:9px;font-size:12px;box-shadow:0 1px 2px rgba(20,30,60,0.03);}
  .kcard-id{font-family:'IBM Plex Mono',monospace;font-size:10.5px;color:var(--press);font-weight:600;margin-bottom:4px;}
  .kcard-title{font-weight:600;margin-bottom:6px;font-size:12.5px;}
  .kcard-meta{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);}

  /* machine grid */
  .mgrid{display:grid;grid-template-columns:repeat(7,1fr);gap:10px;}
  .mtile{border-radius:8px;padding:11px 10px;border:1px solid var(--line);}
  .mtile-run{background:var(--good-soft);border-color:#CBEADB;}
  .mtile-idle{background:var(--surface-alt);}
  .mtile-down{background:var(--bad-soft);border-color:#F4CFCF;}
  .mtile-name{font-size:11.5px;font-weight:700;margin-bottom:3px;}
  .mtile-stat{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:0.03em;}
  .mtile-run .mtile-stat{color:var(--good);}
  .mtile-idle .mtile-stat{color:var(--muted);}
  .mtile-down .mtile-stat{color:var(--bad);}

  .flag-card{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border:1px solid var(--line);border-radius:9px;margin-bottom:10px;}
  .flag-left{display:flex;align-items:center;gap:12px;}
  .flag-icon{width:34px;height:34px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
  .flag-title{font-size:13px;font-weight:600;}
  .flag-sub{font-size:11.5px;color:var(--ink-soft);margin-top:2px;}
  .flag-count{font-family:'IBM Plex Mono',monospace;font-size:20px;font-weight:700;}

  .filter-bar{display:flex;gap:10px;margin-bottom:16px;flex-wrap:wrap;}
  .chip{background:var(--surface-alt);border:1px solid var(--line);padding:7px 13px;border-radius:20px;font-size:12px;font-weight:500;color:var(--ink-soft);display:flex;align-items:center;gap:6px;cursor:pointer;}
  .chip.active-chip{background:var(--press-soft);border-color:var(--press);color:var(--press);}

  /* ---------- Column filter row ---------- */
  tr.filter-row td{padding:6px 8px;background:var(--surface);border-bottom:1.5px solid var(--line);}
  .col-filter{width:100%;font-family:'Inter',sans-serif;font-size:11px;color:var(--ink-soft);background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:5px 6px;cursor:pointer;}
  .col-filter:focus{outline:none;border-color:var(--press);}

  /* ---------- Row actions ---------- */
  .data-row{cursor:pointer;}
  .row-actions{display:flex;gap:6px;justify-content:flex-end;}
  .icon-btn{width:26px;height:26px;border-radius:6px;border:1px solid var(--line);background:var(--paper);display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;}
  .icon-btn:hover{background:var(--press-soft);border-color:var(--press);}
  .icon-btn svg{width:13px;height:13px;stroke:var(--ink-soft);}
  .icon-btn:hover svg{stroke:var(--press);}
  th.actions-col,td.actions-col{text-align:right;}

  .eyebrow{display:flex;align-items:center;gap:7px;font-size:11px;font-weight:700;letter-spacing:0.08em;text-transform:uppercase;color:var(--press);margin-bottom:6px;}
  .eyebrow .reg svg circle,.eyebrow .reg svg path{stroke:var(--press);}
  .section-head{margin-bottom:16px;}
  .section-head h2{font-size:18px;margin:0;}
  .section-head p{font-size:12.5px;color:var(--ink-soft);margin:4px 0 0 0;}

  /* modal */
  .modal-overlay{position:fixed;inset:0;background:rgba(20,30,60,0.45);display:none;align-items:center;justify-content:center;z-index:100;}
  .modal-overlay.active{display:flex;}
  .modal{background:#fff;border-radius:14px;width:520px;max-width:92vw;max-height:88vh;overflow-y:auto;padding:26px 28px;}
  .modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;}
  .modal-head h3{margin:0;font-size:17px;}
  .close-x{cursor:pointer;color:var(--muted);font-size:20px;line-height:1;}
  .field{margin-bottom:14px;}
  .field label{display:block;font-size:12px;font-weight:600;color:var(--ink-soft);margin-bottom:6px;}
  .field input,.field select{width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:7px;font-size:13px;font-family:'Inter',sans-serif;background:var(--surface);color:var(--ink);}
  .field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
  .modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:8px;}

  .footnote{font-size:11px;color:var(--muted);margin-top:18px;padding-top:14px;border-top:1px dashed var(--line);}

  /* ---------- Settings ---------- */
  .settings-subnav{display:flex;gap:8px;margin-bottom:18px;background:var(--surface-alt);padding:4px;border-radius:9px;width:fit-content;}
  .subnav-item{padding:8px 16px;border-radius:7px;font-size:12.5px;font-weight:600;color:var(--ink-soft);cursor:pointer;}
  .subnav-item.active{background:var(--paper);color:var(--press);box-shadow:0 1px 3px rgba(20,30,60,0.08);}
  .settings-panel{display:none;}
  .settings-panel.active{display:block;}

  .list-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
  .list-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;}
  .list-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
  .list-card-title{font-size:13px;font-weight:600;display:flex;align-items:center;gap:7px;}
  .list-card-count{font-size:10.5px;color:var(--muted);font-family:'IBM Plex Mono',monospace;}
  .tag-wrap{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px;min-height:26px;}
  .tag{display:inline-flex;align-items:center;gap:6px;background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:4px 6px 4px 11px;font-size:11.5px;font-weight:500;color:var(--ink);}
  .tag .tag-x{width:15px;height:15px;border-radius:50%;background:var(--surface-alt);display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:11px;color:var(--ink-soft);line-height:1;}
  .tag .tag-x:hover{background:var(--bad-soft);color:var(--bad);}
  .tag-add-row{display:flex;gap:7px;}
  .tag-add-row input{flex:1;padding:7px 10px;border:1px solid var(--line);border-radius:7px;font-size:12px;font-family:'Inter',sans-serif;background:var(--paper);}
  .tag-add-row button{border:none;background:var(--press-soft);color:var(--press);font-weight:700;font-size:15px;width:32px;border-radius:7px;cursor:pointer;flex-shrink:0;}
  .tag-add-row button:hover{background:var(--press);color:#fff;}

  .mm-table input, .mm-table select{width:100%;padding:6px 8px;border:1px solid transparent;border-radius:6px;font-size:12px;font-family:'IBM Plex Mono',monospace;background:transparent;color:var(--ink);}
  .mm-table input:hover, .mm-table select:hover{border-color:var(--line);background:var(--paper);}
  .mm-table input:focus, .mm-table select:focus{outline:none;border-color:var(--press);background:var(--paper);}
  .mm-table select{font-family:'Inter',sans-serif;}
  .unfilled{background:var(--warn-soft) !important;border-color:#F0D3AC !important;}

  .settings-save-bar{position:sticky;bottom:0;background:rgba(255,255,255,0.95);backdrop-filter:blur(6px);border-top:1px solid var(--line);padding:14px 0;margin-top:20px;display:flex;justify-content:space-between;align-items:center;}
  .save-status{font-size:12px;color:var(--ink-soft);display:flex;align-items:center;gap:7px;}

/* ---------- Live app additions: toasts, loading, empty states ---------- */
.toast-wrap{position:fixed;bottom:22px;right:22px;display:flex;flex-direction:column;gap:8px;z-index:200;}
.toast{background:var(--ink);color:#fff;padding:11px 16px;border-radius:8px;font-size:12.5px;font-weight:500;box-shadow:0 6px 20px rgba(20,30,60,0.25);display:flex;align-items:center;gap:8px;animation:toast-in 0.2s ease;}
.toast.error{background:var(--bad);}
.toast.success{background:var(--good);}
@keyframes toast-in{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}

.empty-state{text-align:center;padding:40px 20px;color:var(--muted);font-size:13px;}
.loading-row td{color:var(--muted);text-align:center;padding:20px;font-size:12.5px;}

.icon-btn.danger:hover{background:var(--bad-soft);border-color:var(--bad);}
.icon-btn.danger:hover svg{stroke:var(--bad);}

.badge-static{cursor:default;}
select:disabled, input:disabled{opacity:0.6;cursor:not-allowed;}

.save-status.dirty{color:var(--warn);font-weight:600;}
.save-status.ok{color:var(--good);font-weight:600;}