:root{
    --bg:#EEF1F3;
    --surface:#FFFFFF;
    --surface-2:#F5F7F8;
    --ink:#12233F;
    --ink-soft:#4C5C71;
    --ink-faint:#8695A7;
    --line:#DBE2E7;
    --line-strong:#C2CCD3;
    --accent:#1D6F8C;
    --accent-soft:#DCEBF0;
    --deep:#0F3D57;
    --deep-2:#0B2E42;
    --flag:#C4432B;
    --flag-soft:#F7E2DC;
    --warn:#C98A2C;
    --warn-soft:#F6ECD9;
    --good:#3F7D58;
    --good-soft:#DFEDE3;
    --grid: rgba(255,255,255,0.055);
    --radius: 3px;
    --font-display:'Space Grotesk', sans-serif;
    --font-body:'Inter', sans-serif;
    --font-mono:'IBM Plex Mono', monospace;
  }
  *{box-sizing:border-box;}
  html,body{margin:0;padding:0;}
  body{
    background:var(--bg);
    color:var(--ink);
    font-family:var(--font-body);
    font-size:14px;
    line-height:1.45;
    -webkit-font-smoothing:antialiased;
  }
  ::selection{background:var(--accent-soft);}
  a{color:inherit;}
  button{font-family:inherit;}
  input,select,textarea{font-family:inherit;font-size:13px;}

  /* ---------- Layout shell ---------- */
  #app{display:flex;min-height:100vh;}

  /* Sidebar — blueprint panel */
  .sidebar{
    width:236px;
    flex:0 0 236px;
    background:
      linear-gradient(var(--grid),var(--grid)) 0 0/100% 22px,
      linear-gradient(90deg, var(--grid), var(--grid)) 0 0/22px 100%,
      linear-gradient(180deg, var(--deep) 0%, var(--deep-2) 100%);
    color:#EAF1F4;
    display:flex;
    flex-direction:column;
    position:sticky;
    top:0;
    height:100vh;
  }
  .sidebar-corner{
    position:absolute; width:10px; height:10px;
  }
  .brand{
    padding:22px 20px 16px 20px;
    border-bottom:1px solid rgba(255,255,255,0.12);
    position:relative;
  }
  .brand::before, .brand::after{
    content:"";
    position:absolute;
    width:8px; height:8px;
    border-color:rgba(234,241,244,0.35);
    border-style:solid;
  }
  .brand::before{ top:8px; left:8px; border-width:1px 0 0 1px; }
  .brand::after{ top:8px; right:8px; border-width:1px 1px 0 0; }
  .brand-eyebrow{
    font-family:var(--font-mono);
    font-size:10px;
    letter-spacing:0.14em;
    text-transform:uppercase;
    color:#8FC4D6;
    margin-bottom:6px;
  }
  .brand-name{
    font-family:var(--font-display);
    font-weight:700;
    font-size:19px;
    letter-spacing:-0.01em;
    color:#fff;
  }
  .brand-sub{
    font-size:11px;
    color:#9FB4C2;
    margin-top:3px;
  }

  .nav{ padding:14px 10px; flex:1; overflow-y:auto; }
  .nav-item{
    display:flex;
    align-items:center;
    gap:10px;
    padding:9px 12px;
    margin-bottom:2px;
    border-radius:var(--radius);
    cursor:pointer;
    color:#C6D6DE;
    font-size:13px;
    font-weight:500;
    transition:background .12s, color .12s;
    border-left:2px solid transparent;
    user-select:none;
  }
  .nav-item .ico{ width:16px; text-align:center; opacity:.85; font-family:var(--font-mono); font-size:12px; }
  .nav-item:hover{ background:rgba(255,255,255,0.06); color:#fff; }
  .nav-item.active{
    background:rgba(255,255,255,0.09);
    color:#fff;
    border-left:2px solid #5AC8E8;
  }
  .nav-section-label{
    font-family:var(--font-mono);
    font-size:9.5px;
    letter-spacing:.13em;
    text-transform:uppercase;
    color:#5D7A8A;
    padding:14px 12px 6px;
  }

  .sidebar-foot{
    padding:14px 16px 18px;
    border-top:1px solid rgba(255,255,255,0.12);
    font-size:11px;
    color:#8098A8;
  }
  .sync-dot{
    display:inline-block; width:6px; height:6px; border-radius:50%;
    background:#5AC8A0; margin-right:6px; box-shadow:0 0 0 3px rgba(90,200,160,0.18);
  }

  /* Main */
  .main{ flex:1; min-width:0; display:flex; flex-direction:column; }
  .topbar{
    background:var(--surface);
    border-bottom:1px solid var(--line);
    padding:16px 28px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    position:sticky; top:0; z-index:20;
  }
  .topbar-title-row{ display:flex; align-items:baseline; gap:10px; }
  .topbar h1{
    font-family:var(--font-display);
    font-size:20px;
    font-weight:600;
    margin:0;
    letter-spacing:-0.01em;
  }
  .topbar .count-chip{
    font-family:var(--font-mono);
    font-size:11px;
    color:var(--ink-soft);
    background:var(--surface-2);
    border:1px solid var(--line);
    padding:2px 8px;
    border-radius:100px;
  }
  .topbar-actions{ display:flex; gap:8px; align-items:center; }

  .search-box{
    display:flex; align-items:center; gap:6px;
    background:var(--surface-2);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:7px 10px;
    min-width:220px;
  }
  .search-box input{
    border:none; background:transparent; outline:none; width:100%;
    color:var(--ink); font-size:13px;
  }
  .search-box svg{ flex:0 0 auto; opacity:.5; }

  .btn{
    display:inline-flex; align-items:center; gap:6px;
    padding:8px 14px;
    border-radius:var(--radius);
    border:1px solid var(--line-strong);
    background:var(--surface);
    color:var(--ink);
    font-size:13px; font-weight:500;
    cursor:pointer;
    transition:all .12s;
    white-space:nowrap;
  }
  .btn:hover{ border-color:var(--accent); color:var(--accent); }
  .btn-primary{
    background:var(--accent); border-color:var(--accent); color:#fff;
  }
  .btn-primary:hover{ background:var(--deep); border-color:var(--deep); color:#fff; }
  .btn-danger{ color:var(--flag); border-color:var(--flag-soft); }
  .btn-danger:hover{ background:var(--flag-soft); border-color:var(--flag); color:var(--flag); }
  .btn-ghost{ border-color:transparent; background:transparent; }
  .btn-ghost:hover{ background:var(--surface-2); border-color:var(--line); }
  .btn-sm{ padding:5px 9px; font-size:12px; }
  .btn:disabled{ opacity:.4; cursor:not-allowed; }

  .content{ padding:24px 28px 60px; flex:1; }

  /* Cards / KPIs */
  .kpi-grid{ display:grid; grid-template-columns:repeat(auto-fit, minmax(190px,1fr)); gap:14px; margin-bottom:22px; }
  .kpi-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:16px 18px;
    position:relative;
    overflow:hidden;
  }
  .kpi-card::before{
    content:""; position:absolute; left:0; top:0; bottom:0; width:3px; background:var(--accent);
  }
  .kpi-card.flag::before{ background:var(--flag); }
  .kpi-card.warn::before{ background:var(--warn); }
  .kpi-card.good::before{ background:var(--good); }
  .kpi-label{
    font-family:var(--font-mono); font-size:10.5px; letter-spacing:.09em; text-transform:uppercase;
    color:var(--ink-faint); margin-bottom:8px;
  }
  .kpi-value{ font-family:var(--font-display); font-size:30px; font-weight:700; letter-spacing:-0.02em; }
  .kpi-foot{ font-size:11.5px; color:var(--ink-soft); margin-top:4px; }

  .panel{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    margin-bottom:20px;
  }
  .panel-head{
    padding:14px 18px;
    border-bottom:1px solid var(--line);
    display:flex; align-items:center; justify-content:space-between;
  }
  .panel-head h3{
    font-family:var(--font-display); font-size:14.5px; font-weight:600; margin:0;
  }
  .panel-body{ padding:16px 18px; }

  /* Tables */
  table{ width:100%; border-collapse:collapse; font-size:13px; }
  thead th{
    text-align:left; font-family:var(--font-mono); font-size:10.5px; letter-spacing:.06em;
    text-transform:uppercase; color:var(--ink-faint); font-weight:500;
    padding:9px 12px; border-bottom:1px solid var(--line-strong); cursor:pointer; user-select:none;
    white-space:nowrap;
  }
  thead th:hover{ color:var(--accent); }
  tbody td{ padding:10px 12px; border-bottom:1px solid var(--line); vertical-align:middle; }
  tbody tr:hover{ background:var(--surface-2); }
  .mono{ font-family:var(--font-mono); font-size:12.5px; }
  .table-wrap{ overflow-x:auto; }
  .row-actions{ display:flex; gap:6px; opacity:0; transition:opacity .1s; }
  tbody tr:hover .row-actions{ opacity:1; }

  .badge{
    display:inline-flex; align-items:center; gap:4px;
    font-size:11px; font-weight:600; padding:2px 8px; border-radius:100px;
    font-family:var(--font-mono); letter-spacing:.02em;
  }
  .badge-good{ background:var(--good-soft); color:var(--good); }
  .badge-warn{ background:var(--warn-soft); color:var(--warn); }
  .badge-flag{ background:var(--flag-soft); color:var(--flag); }
  .badge-neutral{ background:var(--surface-2); color:var(--ink-soft); border:1px solid var(--line); }

  .empty-state{
    text-align:center; padding:48px 20px; color:var(--ink-faint);
  }
  .empty-state .eb-glyph{ font-family:var(--font-mono); font-size:26px; margin-bottom:8px; color:var(--line-strong); }
  .empty-state h4{ font-family:var(--font-display); color:var(--ink-soft); margin:4px 0; font-size:15px; }
  .empty-state p{ font-size:12.5px; max-width:340px; margin:0 auto; }

  /* Modal */
  .modal-overlay{
    position:fixed; inset:0; background:rgba(15,30,45,0.45);
    display:none; align-items:flex-start; justify-content:center;
    padding:44px 16px; overflow-y:auto; z-index:100;
  }
  .modal-overlay.open{ display:flex; }
  .modal{
    background:var(--surface); border-radius:4px; width:100%; max-width:560px;
    box-shadow:0 20px 60px rgba(15,30,45,0.35);
    border:1px solid var(--line);
  }
  .modal-head{
    padding:16px 22px; border-bottom:1px solid var(--line);
    display:flex; align-items:center; justify-content:space-between;
  }
  .modal-head h3{ font-family:var(--font-display); font-size:16px; margin:0; }
  .modal-body{ padding:20px 22px; max-height:70vh; overflow-y:auto; }
  .modal-foot{ padding:14px 22px; border-top:1px solid var(--line); display:flex; justify-content:flex-end; gap:8px; }

  .field{ margin-bottom:14px; }
  .field label{
    display:block; font-size:11.5px; font-weight:600; color:var(--ink-soft);
    margin-bottom:5px; text-transform:uppercase; letter-spacing:.04em; font-family:var(--font-mono);
  }
  .field input, .field select, .field textarea{
    width:100%; padding:8px 10px; border:1px solid var(--line-strong); border-radius:var(--radius);
    background:var(--surface); color:var(--ink); outline:none;
  }
  .field input:focus, .field select:focus, .field textarea:focus{ border-color:var(--accent); box-shadow:0 0 0 3px var(--accent-soft); }
  .field-row{ display:grid; grid-template-columns:1fr 1fr; gap:12px; }
  .field textarea{ resize:vertical; min-height:60px; }
  .field-hint{ font-size:11px; color:var(--ink-faint); margin-top:4px; }

  /* Toast */
  .toast{
    position:fixed; bottom:20px; right:20px; background:var(--deep); color:#fff;
    padding:11px 16px; border-radius:var(--radius); font-size:13px; z-index:200;
    box-shadow:0 8px 24px rgba(0,0,0,0.25); display:flex; align-items:center; gap:8px;
    opacity:0; transform:translateY(8px); transition:all .2s; pointer-events:none;
  }
  .toast.show{ opacity:1; transform:translateY(0); }

  /* Milestone tracker (module) */
  .part-picker{ display:flex; gap:14px; align-items:flex-start; }
  .part-list{ width:260px; flex:0 0 260px; border:1px solid var(--line); border-radius:var(--radius); background:var(--surface); max-height:640px; overflow-y:auto; }
  .part-list-item{
    padding:11px 14px; border-bottom:1px solid var(--line); cursor:pointer; font-size:13px;
  }
  .part-list-item:hover{ background:var(--surface-2); }
  .part-list-item.active{ background:var(--accent-soft); border-left:3px solid var(--accent); padding-left:11px; }
  .part-list-item .pn{ font-family:var(--font-mono); font-size:12.5px; font-weight:600; }
  .part-list-item .pmeta{ font-size:11px; color:var(--ink-faint); margin-top:2px; }
  .part-progress-bar{ height:4px; background:var(--line); border-radius:4px; margin-top:6px; overflow:hidden; }
  .part-progress-fill{ height:100%; background:var(--good); }

  .timeline{ flex:1; min-width:0; }
  .tl-step{ display:flex; gap:14px; position:relative; }
  .tl-marker-col{ display:flex; flex-direction:column; align-items:center; }
  .tl-num{
    width:26px; height:26px; border-radius:50%; display:flex; align-items:center; justify-content:center;
    font-family:var(--font-mono); font-size:11px; font-weight:600; flex:0 0 auto; z-index:2;
    background:var(--surface); border:2px solid var(--line-strong); color:var(--ink-faint);
  }
  .tl-num.done{ background:var(--good); border-color:var(--good); color:#fff; }
  .tl-num.late{ background:var(--flag); border-color:var(--flag); color:#fff; }
  .tl-num.hold{ background:var(--warn); border-color:var(--warn); color:#fff; }
  .tl-line{ width:2px; flex:1; background:var(--line-strong); margin:2px 0; }
  .tl-step:last-child .tl-line{ display:none; }
  .tl-content{ padding-bottom:22px; flex:1; min-width:0; }
  .tl-title-row{ display:flex; align-items:center; gap:8px; margin-bottom:5px; flex-wrap:wrap; }
  .tl-title{ font-weight:600; font-size:13.5px; }
  .tl-dates{ display:flex; gap:16px; flex-wrap:wrap; font-size:12px; color:var(--ink-soft); margin-top:4px; }
  .tl-dates .dgroup{ display:flex; flex-direction:column; gap:1px; }
  .tl-dates .dgroup b{ font-family:var(--font-mono); font-size:10px; text-transform:uppercase; color:var(--ink-faint); font-weight:500; letter-spacing:.05em; }
  .tl-notes{ font-size:12px; color:var(--ink-soft); margin-top:5px; font-style:italic; }

  /* Audit module */
  .audit-section{ margin-bottom:10px; }
  .audit-q-row{ display:flex; align-items:center; gap:10px; padding:9px 12px; border-bottom:1px solid var(--line); }
  .audit-q-row .qtext{ flex:1; font-size:13px; }
  .score-pills{ display:flex; gap:4px; }
  .score-pill{
    width:26px; height:26px; border-radius:4px; border:1px solid var(--line-strong); background:var(--surface);
    display:flex; align-items:center; justify-content:center; cursor:pointer; font-family:var(--font-mono); font-size:12px; color:var(--ink-soft);
  }
  .score-pill.sel-0{ background:var(--flag); border-color:var(--flag); color:#fff; }
  .score-pill.sel-1, .score-pill.sel-2 { background:var(--warn); border-color:var(--warn); color:#fff; }
  .score-pill.sel-3, .score-pill.sel-4 { background:var(--good); border-color:var(--good); color:#fff; }

  /* Dimwork caliper */
  .caliper{ position:relative; height:26px; width:220px; }
  .caliper-track{ position:absolute; top:11px; left:0; right:0; height:4px; background:var(--line); border-radius:4px; }
  .caliper-zone{ position:absolute; top:11px; height:4px; background:var(--accent-soft); border-radius:4px; }
  .caliper-nominal{ position:absolute; top:6px; width:2px; height:14px; background:var(--ink-faint); }
  .caliper-marker{ position:absolute; top:2px; width:10px; height:22px; margin-left:-5px; border-radius:2px; }
  .caliper-marker.ok{ background:var(--good); }
  .caliper-marker.bad{ background:var(--flag); }
  .caliper-labels{ display:flex; justify-content:space-between; font-family:var(--font-mono); font-size:10px; color:var(--ink-faint); margin-top:2px; width:220px; }

  /* Gauge ring (dashboard) */
  .gauge-wrap{ display:flex; align-items:center; gap:16px; }
  .gauge-num{ font-family:var(--font-display); font-size:26px; font-weight:700; }
  .gauge-label{ font-size:11.5px; color:var(--ink-soft); }

  .bar-row{ display:flex; align-items:center; gap:10px; margin-bottom:8px; }
  .bar-label{ width:150px; flex:0 0 150px; font-size:12.5px; color:var(--ink-soft); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
  .bar-track{ flex:1; height:8px; background:var(--surface-2); border-radius:4px; overflow:hidden; }
  .bar-fill{ height:100%; background:var(--accent); border-radius:4px; }
  .bar-val{ width:34px; flex:0 0 34px; text-align:right; font-family:var(--font-mono); font-size:11.5px; color:var(--ink-faint); }

  .qfw-form-grid{ display:grid; grid-template-columns:1fr 1fr 1fr; gap:10px; }
  .reject-block{ border:1px dashed var(--line-strong); border-radius:var(--radius); padding:12px; margin-top:10px; background:var(--surface-2); }
  .reject-block h5{ margin:0 0 8px; font-family:var(--font-mono); font-size:11px; text-transform:uppercase; letter-spacing:.06em; color:var(--ink-faint); }

  .tab-strip{ display:flex; gap:2px; margin-bottom:16px; border-bottom:1px solid var(--line); }
  .tab-btn{
    padding:9px 14px; font-size:12.5px; font-weight:500; color:var(--ink-soft); cursor:pointer;
    border-bottom:2px solid transparent; margin-bottom:-1px;
  }
  .tab-btn.active{ color:var(--accent); border-bottom-color:var(--accent); }

  .loading-screen{
    position:fixed; inset:0; background:var(--deep); color:#EAF1F4; display:flex; flex-direction:column;
    align-items:center; justify-content:center; z-index:999; font-family:var(--font-mono); font-size:12px; letter-spacing:.08em;
  }
  .loading-screen .lg-title{ font-family:var(--font-display); font-size:20px; margin-bottom:14px; letter-spacing:-0.01em; }
  .spinner{ width:18px; height:18px; border:2px solid rgba(255,255,255,0.25); border-top-color:#5AC8E8; border-radius:50%; animation:spin 0.8s linear infinite; margin-bottom:10px; }
  @keyframes spin{ to{ transform:rotate(360deg); } }

  @media (max-width: 880px){
    .sidebar{ position:fixed; left:-236px; z-index:80; transition:left .2s; }
    .sidebar.open{ left:0; }
    .sidebar.open::after{
      content:''; position:fixed; top:0; left:236px; right:0; bottom:0;
      background:rgba(0,0,0,0.4); z-index:-1; pointer-events:none;
    }
    .part-picker{ flex-direction:column; }
    .part-list{ width:100%; max-height:220px; }
    .qfw-form-grid{ grid-template-columns:1fr; }
    .field-row{ grid-template-columns:1fr; }
    .topbar{ padding:12px 16px; }
    .content{ padding:16px; }
    .bar-label{ width:auto; flex:1 1 90px; min-width:0; }
    .panel{ max-width:100%; overflow-x:auto; }
    .table-wrap{ -webkit-overflow-scrolling:touch; }
    .table-wrap table{ width:auto; min-width:100%; }
    .table-wrap td, .table-wrap th{ white-space:nowrap; }
  }
  .menu-toggle{ display:none; }
  @media (max-width:880px){ .menu-toggle{ display:inline-flex; } }

  /* Login screen */
  .login-screen{
    position:fixed; inset:0; background:var(--bg); display:none;
    align-items:center; justify-content:center; z-index:500;
  }
  .login-card{
    width:100%; max-width:360px; background:var(--surface); border:1px solid var(--line);
    border-radius:4px; padding:32px 28px; box-shadow:0 20px 60px rgba(15,30,45,0.12);
  }