:root{
    --bg:#0f1115; --panel:#161a21; --panel2:#1c212b; --border:#262c38;
    --text:#e7ebf3; --muted:#8a93a6; --accent:#3d8bfd; --accent2:#2fd18c;
    --danger:#ff5470; --warn:#ffb454; --purple:#a78bfa; --radius:10px;
  }
  *{box-sizing:border-box}
  body{margin:0;background:var(--bg);color:var(--text);font-family:'Segoe UI',system-ui,-apple-system,sans-serif;font-size:14px}
  header{display:flex;align-items:center;justify-content:space-between;padding:14px 22px;border-bottom:1px solid var(--border);background:var(--panel)}
  header h1{font-size:16px;margin:0;font-weight:600;letter-spacing:.3px}
  header h1 span{color:var(--purple)}
  #session-info{font-size:12px;color:var(--muted)}
  #session-info b{color:var(--text)}
  .layout{display:flex;min-height:calc(100vh - 53px)}
  nav{width:230px;border-right:1px solid var(--border);background:var(--panel);padding:14px 0;flex-shrink:0}
  nav button{display:flex;align-items:center;gap:8px;width:100%;text-align:left;padding:10px 20px;background:none;border:none;color:var(--muted);cursor:pointer;font-size:13.5px}
  nav button:hover{color:var(--text);background:var(--panel2)}
  nav button.active{color:var(--text);background:var(--panel2);border-left:3px solid var(--purple);font-weight:600}
  .nav-group-header{justify-content:space-between;color:var(--text);font-weight:600;text-transform:uppercase;font-size:11.5px;letter-spacing:.5px;margin-top:6px}
  .nav-group-header .chev{transition:transform .15s;color:var(--muted)}
  .nav-group-header.open .chev{transform:rotate(90deg)}
  .nav-submenu{max-height:0;overflow:hidden;transition:max-height .18s ease}
  .nav-submenu.open{max-height:400px}
  .nav-submenu button{padding-left:34px;font-size:13px}
  main{flex:1;padding:22px;overflow-x:auto}
  .view{display:none}
  .view.active{display:block}
  .card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-bottom:18px}
  .card h2{margin:0 0 14px;font-size:15px;color:var(--text)}
  .card h3{margin:0 0 10px;font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}
  .row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
  input[type=text],input[type=password],input[type=number],select,textarea{background:var(--panel2);border:1px solid var(--border);color:var(--text);padding:8px 10px;border-radius:6px;font-size:13px;font-family:inherit}
  input:focus,select:focus,textarea:focus{outline:1px solid var(--accent)}
  button.btn{background:var(--accent);color:#fff;border:none;padding:8px 14px;border-radius:6px;cursor:pointer;font-size:13px;font-weight:600}
  button.btn:hover{opacity:.9}
  button.btn.secondary{background:var(--panel2);border:1px solid var(--border);color:var(--text)}
  button.btn.danger{background:var(--danger)}
  button.btn.success{background:var(--accent2);color:#062}
  button.btn.purple{background:var(--purple);color:#1a0f33}
  button.btn:disabled{opacity:.4;cursor:not-allowed}
  button.btn.sm{padding:5px 10px;font-size:11.5px}
  table{border-collapse:collapse;width:100%;font-size:12.5px}
  table.table-fit{width:auto;min-width:0}
  th,td{padding:7px 10px;border-bottom:1px solid var(--border);text-align:left;white-space:nowrap}
  th{color:var(--muted);font-weight:600;position:sticky;top:0;background:var(--panel)}
  tr:hover td{background:var(--panel2)}
  .tag{display:inline-block;padding:2px 8px;border-radius:20px;font-size:11px;font-weight:700}
  .tag.on{background:rgba(47,209,140,.15);color:var(--accent2)}
  .tag.off{background:rgba(255,84,112,.15);color:var(--danger)}
  .tag.warn{background:rgba(255,180,84,.15);color:var(--warn)}
  .tag.purple{background:rgba(167,139,250,.15);color:var(--purple)}
  .tag.blue{background:rgba(61,139,253,.15);color:var(--accent)}
  .muted{color:var(--muted)}
  .clickable{cursor:pointer;text-decoration:underline dotted;text-underline-offset:3px}
  .clickable:hover{color:var(--accent)}
  .accounts-list{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
  .acc-item{display:flex;justify-content:space-between;align-items:center;background:var(--panel2);border:1px solid var(--border);border-radius:8px;padding:10px 14px}
  .acc-item:hover{border-color:var(--accent)}
  #log-panel{position:fixed;bottom:0;left:0;right:0;height:180px;max-height:40vh;background:#0a0c10;border-top:1px solid var(--border);font-family:Consolas,monospace;font-size:11.5px;overflow-y:auto;padding:8px 14px;display:none;z-index:50}
  #log-panel.show{display:block}
  .log-line{padding:1px 0;white-space:pre-wrap}
  .log-line.err{color:var(--danger)}
  .log-line.ok{color:var(--accent2)}
  .log-line.warn{color:var(--warn)}
  #log-toggle{position:fixed;bottom:10px;right:16px;z-index:60}
  /* Khi Log panel mở, đẩy nội dung chính lên để không bị panel fixed che mất phần cuối trang */
  body.log-open .layout{padding-bottom:190px}
  @media (max-width:480px){
    body.log-open .layout{padding-bottom:150px}
    #log-panel{height:140px}
  }
  .modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.55);display:none;align-items:center;justify-content:center;z-index:100}
  .modal-backdrop.show{display:flex}
  .modal{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:20px;width:340px}
  .modal.wide{width:600px;max-height:85vh;overflow-y:auto}
  .modal h3{margin-top:0}
  .modal .row{margin-top:12px}
  .banner{background:rgba(255,180,84,.1);border:1px solid var(--warn);color:var(--warn);padding:10px 14px;border-radius:8px;font-size:12.5px;margin-bottom:16px}
  .checklist{max-height:260px;overflow-y:auto;border:1px solid var(--border);border-radius:8px;padding:8px}
  .checklist label{display:flex;gap:8px;align-items:center;padding:5px 4px;font-size:13px}
  small.hint{color:var(--muted);display:block;margin-top:4px}
  .stat-grid{display:flex;gap:14px;flex-wrap:wrap}
  .stat-box{background:var(--panel2);border:1px solid var(--border);border-radius:8px;padding:14px 20px;min-width:140px}
  .stat-box .num{font-size:22px;font-weight:700;color:var(--purple)}
  .stat-box .lbl{font-size:11.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.4px}
  .type-pill{display:inline-block;padding:6px 12px;border-radius:8px;background:var(--panel2);border:1px solid var(--border);cursor:pointer;font-size:12.5px;margin:3px}
  .type-pill:hover{border-color:var(--purple)}
  .type-pill.active{border-color:var(--purple);background:rgba(167,139,250,.12);color:var(--purple);font-weight:600}
  .policy-card{background:var(--panel2);border:1px solid var(--border);border-radius:8px;padding:14px;margin-bottom:10px}
  .policy-card.base{border-left:3px solid var(--purple)}
  .policy-card .ph{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
  .editor-panel{background:#0a0c10;border:1px solid var(--border);border-radius:8px;padding:14px;margin-top:10px}
  textarea.code{width:100%;min-height:160px;background:#0a0c10;border:1px solid var(--border);color:var(--text);border-radius:6px;padding:10px;font-family:Consolas,monospace;font-size:12px}
  .pill-badge{display:inline-block;background:var(--panel2);border:1px solid var(--border);border-radius:14px;padding:2px 9px;font-size:11px;margin:1px 3px 1px 0}
  .pill-badge.p-endpoint{border-color:rgba(61,139,253,.4);color:var(--accent)}
  .pill-badge.p-server{border-color:rgba(255,180,84,.4);color:var(--warn)}
  .settings-editor{margin-top:4px}
  .settings-group{border:1px solid var(--border);border-radius:8px;margin-bottom:10px;overflow:hidden}
  .settings-group-title{background:var(--panel2);padding:8px 12px;font-weight:600;font-size:12.5px;color:var(--purple);text-transform:uppercase;letter-spacing:.4px}
  .setting-row{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:9px 12px;border-top:1px solid var(--border)}
  .setting-row:first-of-type{border-top:none}
  .setting-row-label{font-size:12.5px;flex:1;min-width:0}
  .setting-row-key{font-size:10px;color:var(--muted);font-family:Consolas,monospace;margin-top:2px;word-break:break-all;opacity:.6}
  .setting-row-input{display:flex;align-items:center;gap:8px;flex-shrink:0}
  .setting-row-input input[type=text],.setting-row-input input[type=number]{width:200px}
  .setting-row-input textarea{width:280px}
  .setting-row.depth-1{padding-left:34px;background:rgba(255,255,255,.015)}
  .setting-row.depth-2{padding-left:58px;background:rgba(255,255,255,.03)}
  .setting-row.depth-3{padding-left:82px;background:rgba(255,255,255,.045)}
  /* toggle switch giống Sophos Central (xanh khi bật) */
  .toggle-switch{position:relative;display:inline-block;width:38px;height:21px;flex-shrink:0;cursor:pointer}
  .toggle-switch input{opacity:0;width:0;height:0;position:absolute}
  .toggle-slider{position:absolute;inset:0;background:#4a5264;border-radius:20px;transition:.15s}
  .toggle-slider::before{content:'';position:absolute;width:15px;height:15px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.15s}
  .toggle-switch input:checked + .toggle-slider{background:var(--accent)}
  .toggle-switch input:checked + .toggle-slider::before{transform:translateX(17px)}
  /* checkbox cho setting con (thụt lề) */
  .check-row{display:flex;align-items:center;gap:7px;cursor:pointer;font-size:12px}
  .check-row input{width:15px;height:15px;accent-color:var(--accent)}
  .tag-chip{display:inline-flex;align-items:center;gap:5px;background:var(--panel2);border:1px solid var(--border);border-radius:14px;padding:3px 9px;font-size:11.5px;margin:2px}
  .tag-chip button{background:none;border:none;color:var(--danger);cursor:pointer;font-size:14px;padding:0;line-height:1;font-weight:700}
  .tag-list{display:flex;flex-wrap:wrap;gap:2px;max-width:340px}
  .array-editor-slot{max-width:360px}

  /* ===================== RESPONSIVE ===================== */
  #hamburger-btn{display:none;background:none;border:1px solid var(--border);color:var(--text);border-radius:6px;width:34px;height:34px;font-size:16px;cursor:pointer;flex-shrink:0}
  #nav-backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:150}
  #nav-backdrop.show{display:block}
  .nav-mobile-header{display:none;align-items:center;justify-content:space-between;padding:10px 16px 14px;border-bottom:1px solid var(--border);margin-bottom:8px;font-weight:600;font-size:13px}
  #nav-close-btn{background:none;border:1px solid var(--border);color:var(--text);border-radius:6px;width:28px;height:28px;cursor:pointer;font-size:13px}

  @media (max-width:860px){
    #hamburger-btn{display:inline-flex;align-items:center;justify-content:center}
    header h1{font-size:14.5px}
    header h1 small{display:none}
    nav{position:fixed;top:0;left:0;bottom:0;z-index:200;width:270px;max-width:82vw;
      transform:translateX(-100%);transition:transform .2s ease;box-shadow:4px 0 24px rgba(0,0,0,.5);overflow-y:auto}
    nav.open{transform:translateX(0)}
    .nav-mobile-header{display:flex}
    .layout{min-height:calc(100vh - 49px)}
    main{padding:16px}
    .card{padding:14px}
  }
  @media (min-width:861px){
    .nav-mobile-header, #nav-close-btn{display:none}
  }

  @media (max-width:480px){
    body{font-size:13px}
    header{padding:10px 12px}
    header h1{font-size:13px}
    main{padding:10px}
    .card{padding:11px;margin-bottom:12px}
    .card h2{font-size:13.5px}
    button.btn{padding:7px 11px;font-size:12.5px}
    button.btn.sm{padding:4px 8px;font-size:11px}
    th,td{padding:5px 7px;font-size:11.5px}
    .stat-grid{gap:8px}
    .stat-box{min-width:0;flex:1 1 calc(50% - 8px);padding:10px 12px}
    .stat-box .num{font-size:18px}
    .setting-row-input input[type=text],.setting-row-input input[type=number]{width:140px}
    .setting-row-input textarea{width:180px}
    .modal{width:92vw}
    .modal.wide{width:92vw}
    #log-toggle{bottom:8px;right:10px;padding:6px 10px;font-size:12px}
  }