:root{
    --ink:#0B3B36;
    --ink-2:#12524A;
    --paper:#F4F7F6;
    --paper-2:#EAF1EF;
    --mint:#8FD3C7;
    --mint-deep:#4FA795;
    --gold:#D9A441;
    --line: rgba(11,59,54,0.14);
    --white:#FFFFFF;
    --red:#B3453D;
    --shadow: 0 8px 24px rgba(11,59,54,0.08);
    --radius: 14px;
  }
  *{box-sizing:border-box;}
  html,body{margin:0;padding:0;}
  body{
    font-family:'IBM Plex Sans Thai', sans-serif;
    background:var(--paper);
    color:var(--ink);
    min-height:100vh;
  }
  ::selection{ background: var(--mint); color:var(--ink); }

  /* ---------- Top bar : building-directory board ---------- */
  .board{
    background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
    color: var(--paper);
    padding: 28px 24px 22px;
    position: relative;
    overflow:hidden;
  }
  .board::before{
    content:"";
    position:absolute; inset:0;
    background-image: repeating-linear-gradient(90deg, rgba(255,255,255,0.035) 0 1px, transparent 1px 64px);
    pointer-events:none;
  }
  .board-inner{
    max-width:1180px; margin:0 auto; position:relative; z-index:1;
    display:flex; align-items:flex-start; justify-content:space-between; gap:16px; flex-wrap:wrap;
  }
  .brand{ display:flex; align-items:center; gap:14px; }
  .brand-mark{
    height:44px; padding:6px 10px; border-radius:10px;
    background: var(--white);
    display:flex; align-items:center; justify-content:center;
    flex:none;
    box-shadow: 0 2px 8px rgba(0,0,0,0.18);
  }
  .brand-mark img{ height:100%; width:auto; display:block; }
  .brand h1{ margin:0; font-size:20px; font-weight:600; letter-spacing:0.2px; }
  .brand p{ margin:2px 0 0; font-size:12.5px; color:rgba(244,247,246,0.65); font-family:'IBM Plex Mono',monospace; letter-spacing:0.4px;}
  .role-zone{ display:flex; align-items:center; gap:10px; }
  .role-pill{
    font-family:'IBM Plex Mono', monospace;
    font-size:11.5px; padding:6px 12px; border-radius:99px;
    border:1px solid rgba(244,247,246,0.25); color:rgba(244,247,246,0.85);
    display:flex; align-items:center; gap:6px;
  }
  .role-dot{ width:7px; height:7px; border-radius:50%; background:var(--mint); }
  .role-dot.admin{ background:var(--gold); }
  .btn{
    font-family:'IBM Plex Sans Thai', sans-serif; font-weight:500; font-size:13.5px;
    padding:8px 16px; border-radius:9px; border:1px solid rgba(244,247,246,0.3);
    background:transparent; color:var(--paper); cursor:pointer; transition:.15s ease;
  }
  .btn:hover{ background:rgba(244,247,246,0.1); }
  .btn.primary{ background:var(--mint); color:var(--ink); border-color:var(--mint); font-weight:600; }
  .btn.primary:hover{ background:var(--mint-deep); }
  .btn.gold{ background:var(--gold); color:var(--ink); border-color:var(--gold); font-weight:600; }
  .btn.gold:hover{ filter:brightness(0.95); }
  .btn.danger{ border-color:var(--red); color:#fff; background:var(--red); }
  .btn.small{ padding:6px 11px; font-size:12px; border-radius:7px; }
  .btn.ghost-ink{ border-color:var(--line); color:var(--ink); background:var(--white); }
  .btn.ghost-ink:hover{ background:var(--paper-2); }
  .btn:disabled{ opacity:0.45; cursor:not-allowed; }

  /* stat strip */
  .stat-strip{
    max-width:1180px; margin: 20px auto 0; position:relative; z-index:1;
    display:flex; gap:28px; flex-wrap:wrap;
    font-family:'IBM Plex Mono', monospace;
  }
  .stat{ color:rgba(244,247,246,0.85); font-size:12.5px; }
  .stat b{ color:var(--mint); font-size:15px; display:block; font-weight:600; }

  /* ---------- Controls ---------- */
  .controls{
    max-width:1180px; margin: -18px auto 0; padding: 0 24px;
    position:relative; z-index:2;
  }
  .controls-card{
    background:var(--white); border-radius:var(--radius); box-shadow:var(--shadow);
    padding:16px 18px; display:flex; gap:12px; flex-wrap:wrap; align-items:center;
    border:1px solid var(--line);
  }
  .search-box{
    flex:1 1 260px; position:relative;
  }
  .search-box input{
    width:100%; padding:11px 14px 11px 38px; border-radius:10px; border:1px solid var(--line);
    font-family:'IBM Plex Sans Thai', sans-serif; font-size:14px; background:var(--paper);
    color:var(--ink); outline:none; transition:.15s;
  }
  .search-box input:focus{ border-color:var(--mint-deep); background:var(--white); }
  .search-icon{ position:absolute; left:12px; top:50%; transform:translateY(-50%); opacity:0.45; font-size:14px; }
  .tabs{ display:flex; gap:6px; flex-wrap:wrap; }
  .tab{
    font-family:'IBM Plex Mono', monospace; font-size:12.5px; padding:8px 13px; border-radius:8px;
    border:1px solid var(--line); background:var(--paper); color:var(--ink-2); cursor:pointer;
    font-weight:500; transition:.15s;
  }
  .tab:hover{ background:var(--paper-2); }
  .tab.active{ background:var(--ink); color:var(--paper); border-color:var(--ink); }

  /* ---------- Content ---------- */
  .content{ max-width:1180px; margin:0 auto; padding: 20px 24px 60px; }
  .dept-group{ margin-bottom:26px; }
  .dept-head{
    display:flex; align-items:baseline; gap:10px; margin: 0 0 10px 2px;
  }
  .dept-head h3{ margin:0; font-size:14.5px; font-weight:600; color:var(--ink-2); }
  .dept-head .count{ font-family:'IBM Plex Mono',monospace; font-size:11.5px; color:var(--mint-deep); background:var(--paper-2); padding:2px 8px; border-radius:99px;}
  .dept-line{ flex:1; height:1px; background:var(--line); }

  .grid{ display:grid; grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); gap:12px; }
  .card{
    background:var(--white); border:1px solid var(--line); border-radius:12px; padding:14px 16px;
    position:relative; transition: .15s ease; box-shadow: 0 1px 2px rgba(11,59,54,0.04);
  }
  .card:hover{ box-shadow: var(--shadow); border-color: var(--mint-deep); }
  .card.locked{ background: repeating-linear-gradient(135deg, var(--white), var(--white) 10px, var(--paper-2) 10px, var(--paper-2) 11px); }
  .card-top{ display:flex; justify-content:space-between; align-items:flex-start; gap:8px; }
  .card-name{ font-weight:600; font-size:14.5px; color:var(--ink); line-height:1.35; }
  .card-pos{ font-size:12px; color:#5b7a75; margin-top:2px; line-height:1.4; white-space:pre-line; }
  .badge-conf{
    font-family:'IBM Plex Mono',monospace; font-size:9.5px; background:var(--gold); color:var(--ink);
    padding:2px 6px; border-radius:5px; font-weight:600; flex:none;
  }
  .card-fields{ margin-top:10px; display:flex; flex-direction:column; gap:5px; }
  .field-row{ display:flex; align-items:center; gap:7px; font-size:12.5px; }
  .field-icon{ width:16px; text-align:center; opacity:0.55; font-size:11px; }
  .ext-pill{
    font-family:'IBM Plex Mono', monospace; font-weight:600; font-size:12.5px;
    background:var(--paper-2); color:var(--ink-2); padding:2px 8px; border-radius:6px;
    letter-spacing:0.3px;
  }
  .field-mono{ font-family:'IBM Plex Mono', monospace; color:var(--ink); }
  .field-muted{ color:#8aa39f; }
  .locked-note{
    font-size:11.5px; color:#8aa39f; font-family:'IBM Plex Mono',monospace;
    display:flex; align-items:center; gap:5px; margin-top:4px;
  }
  .card-admin-actions{ display:flex; gap:6px; margin-top:10px; padding-top:10px; border-top:1px dashed var(--line); }

  .empty-state{
    text-align:center; padding:60px 20px; color:#8aa39f;
  }
  .empty-state .big{ font-size:34px; margin-bottom:8px; }

  /* ---------- Modal ---------- */
  .overlay{
    position:fixed; inset:0; background:rgba(11,59,54,0.45); backdrop-filter: blur(2px);
    display:flex; align-items:center; justify-content:center; z-index:50; padding:20px;
  }
  .modal{
    background:var(--white); border-radius:16px; width:100%; max-width:420px;
    padding:26px 24px; box-shadow: 0 20px 60px rgba(11,59,54,0.25);
    max-height:88vh; overflow-y:auto;
  }
  .modal.wide{ max-width:520px; }
  .modal h2{ margin:0 0 4px; font-size:18px; color:var(--ink); }
  .modal .sub{ font-size:12.5px; color:#8aa39f; margin-bottom:18px; }
  .form-row{ margin-bottom:12px; }
  .form-row label{ display:block; font-size:12px; font-weight:600; color:var(--ink-2); margin-bottom:5px; }
  .form-row input, .form-row select, .form-row textarea{
    width:100%; padding:9px 11px; border-radius:8px; border:1px solid var(--line);
    font-family:'IBM Plex Sans Thai', sans-serif; font-size:13.5px; background:var(--paper); color:var(--ink);
    outline:none;
  }
  .form-row input:focus, .form-row select:focus, .form-row textarea:focus{ border-color:var(--mint-deep); background:var(--white); }
  .form-row textarea{ resize:vertical; min-height:52px; font-family:inherit; }
  .form-grid2{ display:grid; grid-template-columns:1fr 1fr; gap:10px; }
  .modal-actions{ display:flex; gap:8px; margin-top:18px; justify-content:flex-end; }
  .modal-err{ font-size:12.5px; color:var(--red); margin-top:-4px; margin-bottom:10px; }
  .check-row{ display:flex; align-items:center; gap:8px; font-size:13px; margin-top:4px; }

  .toast{
    position:fixed; bottom:22px; left:50%; transform:translateX(-50%);
    background:var(--ink); color:var(--paper); padding:11px 20px; border-radius:10px;
    font-size:13px; box-shadow:var(--shadow); z-index:100; opacity:0; pointer-events:none; transition:.25s;
  }
  .toast.show{ opacity:1; transform:translateX(-50%) translateY(-4px); }

  .footer-note{
    text-align:center; font-size:11.5px; color:#8aa39f; font-family:'IBM Plex Mono',monospace;
    padding: 10px 20px 30px;
  }

  @media (max-width:640px){
    .board{ padding:22px 16px 18px; }
    .stat-strip{ margin-top:16px; gap:18px; }
    .content{ padding:16px 14px 50px; }
    .grid{ grid-template-columns:1fr; }
    .controls{ padding:0 14px; }
  }

  /* ---------- Login gate ---------- */
  #loginGate{
    position:fixed; inset:0; z-index:200;
    background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
    display:flex; align-items:center; justify-content:center; padding:20px;
  }
  #loginGate::before{
    content:""; position:absolute; inset:0;
    background-image: repeating-linear-gradient(90deg, rgba(255,255,255,0.035) 0 1px, transparent 1px 64px);
    pointer-events:none;
  }
  .gate-card{
    position:relative; z-index:1;
    background:var(--white); border-radius:18px; width:100%; max-width:380px;
    padding:32px 28px; box-shadow: 0 24px 70px rgba(0,0,0,0.35);
  }
  .gate-mark{
    height:64px; display:block; margin:0 auto 18px;
  }
  .gate-mark img{ height:100%; width:auto; display:block; margin:0 auto; }
  .gate-card h2{ margin:0 0 4px; font-size:19px; color:var(--ink); text-align:center; }
  .gate-card .sub{ font-size:12.5px; color:#8aa39f; margin-bottom:20px; text-align:center; }
  .gate-err{ font-size:12.5px; color:var(--red); margin:-6px 0 10px; display:none; }
  .gate-foot{ margin-top:16px; font-size:11.5px; color:#8aa39f; text-align:center; }