:root{
    --bg: #f5f5f4;
    --surface: #ffffff;
    --border: #e7e7e5;
    --ink: #16181d;
    --muted: #6b7280;
    --faint: #9aa0ab;
    --blue: #3f6fd1;
    --blue-bg: #dde9fb;
    --tan-bg: #f3eee4;
    --tan-text: #8a7a5c;
    --red: #dc2626;
    --toggle-bg: #ebebe9;
  }
  :root[data-theme="dark"]{
    --bg: #14161a;
    --surface: #1d2025;
    --border: #2e3138;
    --ink: #e8e9eb;
    --muted: #9aa3af;
    --faint: #6b7280;
    --blue: #6d93e8;
    --blue-bg: #233252;
    --tan-bg: #332c22;
    --tan-text: #d3bd95;
    --red: #f3716c;
    --toggle-bg: #262931;
  }
  *{ box-sizing:border-box; margin:0; padding:0; }
  body{
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.5;
    transition: background-color 0.15s ease, color 0.15s ease;
  }
  header{
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  header .brand{ font-weight: 800; font-size: 1.1rem; }
  header .user{ font-size: 0.88rem; color: var(--muted); display:flex; align-items:center; gap:10px; }
  header a{ color: var(--blue); text-decoration: none; font-weight: 600; }
  .header-actions{ display: flex; align-items: center; gap: 10px; }
  .icon-btn{
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1rem;
    color: var(--muted);
    line-height: 1;
  }
  .icon-btn:hover{ border-color: var(--blue); color: var(--blue); }
  .icon-btn svg{ width: 18px; height: 18px; }
  .role-badge{
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 3px 9px;
    border-radius: 999px;
    background: var(--blue-bg);
    color: var(--blue);
  }
  .role-badge--editor{ background: var(--tan-bg); color: var(--tan-text); }
  .role-badge--viewer{ background: var(--border); color: var(--muted); }
  main{ max-width: 760px; margin: 0 auto; padding: 32px 24px; }

  .signed-out{ text-align: center; padding: 64px 24px; }
  .signed-out h1{ font-size: 1.6rem; margin-bottom: 12px; }
  .signed-out p{ color: var(--muted); margin-bottom: 24px; }

  .btn{
    display: inline-flex;
    align-items: center;
    background: var(--blue);
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    padding: 12px 22px;
    border-radius: 8px;
    border: none;
    font-size: 0.95rem;
    cursor: pointer;
    font-family: inherit;
  }
  .btn-sm{
    font-size: 0.74rem;
    font-weight: 600;
    color: var(--muted);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 7px;
    padding: 5px 10px;
    cursor: pointer;
    font-family: inherit;
  }
  .btn-sm:hover{ border-color: var(--blue); color: var(--blue); }
  .btn-sm.danger:hover{ border-color: var(--red); color: var(--red); }
  .btn-sm.primary{
    background: var(--blue);
    border-color: var(--blue);
    color: #fff;
  }
  .btn-sm.primary:hover{ background: var(--blue); border-color: var(--blue); color: #fff; opacity: 0.9; }

  /* Tab toggles (main + admin sub-tabs) */
  .toggle{
    display: inline-flex;
    flex-wrap: wrap;
    background: var(--toggle-bg);
    border-radius: 10px;
    padding: 3px;
    margin-bottom: 20px;
    gap: 2px;
  }
  .page-header .toggle{ margin-bottom: 0; }
  .header-actions-right{ display: flex; gap: 8px; }
  .toggle button{
    border: none;
    background: transparent;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--muted);
    cursor: pointer;
    font-family: inherit;
  }
  .toggle button.active{
    background: var(--surface);
    color: var(--ink);
    box-shadow: 0 1px 2px rgba(0,0,0,0.06);
  }

  h1.page-title{ font-size: 1.3rem; margin-bottom: 18px; }
  .page-header{
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 18px;
  }
  .page-header .page-title{ margin-bottom: 0; }
  h2.section-title{ font-size: 1.05rem; margin: 28px 0 4px; }
  p.section-hint{ color: var(--muted); font-size: 0.88rem; margin-bottom: 16px; }

  /* Filter pills */
  .pills{ display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
  .pill{
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--muted);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 8px 14px;
    cursor: pointer;
    font-family: inherit;
  }
  .pill.active{ background: var(--blue); border-color: var(--blue); color: #fff; }

  /* Search */
  .search-box{
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 9px;
    padding: 10px 14px;
    margin-bottom: 18px;
    font-size: 0.9rem;
    color: var(--faint);
  }
  .search-box input{
    border: none;
    padding: 0;
    flex: 1;
    font-size: 0.9rem;
    font-family: inherit;
    color: var(--ink);
  }
  .search-box input:focus{ outline: none; }

  /* Forms (add-contact, add-type, add-field, etc.) */
  form.add-contact{
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
  }
  form.add-contact h2{ font-size: 1rem; margin-bottom: 14px; }
  .field-row{ display:flex; gap:10px; margin-bottom:10px; flex-wrap:wrap; }
  .field-row input,
  .field-row select,
  .field-row textarea{ flex: 1 1 140px; }
  .field-row .field-full{ flex: 1 1 100%; }
  .field-label{ display: block; font-size: 0.78rem; color: var(--muted); margin-bottom: 4px; }
  input, select, textarea{
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 9px 12px;
    font-size: 0.9rem;
    font-family: inherit;
    background: var(--surface);
    color: var(--ink);
  }
  textarea{ resize: vertical; min-height: 70px; }
  input:focus, select:focus, textarea:focus{ outline: 2px solid var(--blue); outline-offset: 1px; }

  /* Contact / user cards */
  .card{
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px;
    margin-bottom: 12px;
  }
  .card-head{
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
  }
  .card-id{ display: flex; gap: 10px; align-items: center; }
  .avatar{
    width: 32px; height: 32px;
    border-radius: 999px;
    background: var(--blue-bg);
    color: var(--blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.72rem;
    flex: none;
  }
  .card h2{ font-size: 0.9rem; line-height: 1.3; }
  .card .role{ color: var(--muted); font-size: 0.8rem; }
  .card .org{ color: var(--faint); font-size: 0.76rem; }
  .actions{ display: flex; gap: 6px; flex: none; align-items: center; }

  .divider{ border-top: 1px solid var(--border); margin: 10px 0; }

  /* Contact directory grid */
  #contact-list{
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 12px;
    align-items: start;
  }
  #contact-list .card{ margin-bottom: 0; }
  #contact-list .empty{ grid-column: 1 / -1; }

  .contact-field{
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.82rem;
    color: var(--ink);
    margin-bottom: 6px;
    gap: 10px;
  }
  .contact-field span{ overflow: hidden; text-overflow: ellipsis; }
  .copy-btn{
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--faint);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 4px 10px;
    cursor: pointer;
    font-family: inherit;
    flex: none;
  }
  .copy-btn:hover{ border-color: var(--blue); color: var(--blue); }

  .chips{ margin-top: 10px; }
  .chip{
    display: inline-block;
    font-size: 0.74rem;
    font-weight: 600;
    border-radius: 999px;
    padding: 5px 12px;
    background: var(--tan-bg);
    color: var(--tan-text);
    margin-right: 6px;
    margin-top: 4px;
  }
  .chip--type{ background: var(--blue-bg); color: var(--blue); }
  .chip--clickable{ cursor: pointer; border: none; }
  .chip--clickable:hover{ filter: brightness(0.93); }
  .chip--removable{ display: inline-flex; align-items: center; gap: 6px; padding-right: 8px; }
  .chip--removable button{
    width: auto; border: none; background: none; padding: 0; margin: 0;
    color: inherit; font-size: 1rem; line-height: 1; cursor: pointer; opacity: 0.6;
  }
  .chip--removable button:hover{ opacity: 1; }

  /* Chip picker (used for Linked locations / Linked contacts) */
  .chip-picker .chips{ margin-bottom: 6px; }
  .chip-picker .chips:empty{ margin-bottom: 0; }

  /* Picker modal */
  .picker-list{
    max-height: 320px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 8px;
    margin: 10px 0;
  }
  .picker-item{
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
    font-size: 0.88rem;
  }
  .picker-item:last-child{ border-bottom: none; }
  .picker-item:hover{ background: var(--bg); }
  .picker-item input[type="checkbox"]{ width: auto; flex: none; }

  /* Org chart: location tree (always expanded) */
  .loc-add-row{ margin-bottom: 12px; }
  .loc-tree{ display: flex; flex-direction: column; gap: 10px; }
  .loc-node .card{ margin-bottom: 0; }
  .loc-children{
    margin: 10px 0 0 22px;
    padding-left: 16px;
    border-left: 2px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .loc-node.loc-highlight > .card{ border-color: var(--blue); box-shadow: 0 0 0 2px var(--blue-bg); }

  .notes{
    font-size: 0.82rem;
    color: var(--muted);
    margin-top: 8px;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
  }

  .visibility-table{
    border-collapse: collapse;
    width: 100%;
    font-size: 0.85rem;
  }
  .visibility-table th, .visibility-table td{
    border: 1px solid var(--border);
    padding: 8px 10px;
    text-align: center;
  }
  .visibility-table th{ background: var(--surface-2, var(--surface)); font-weight: 600; }
  .visibility-table thead th{ white-space: nowrap; }
  .visibility-table tbody th{ text-align: left; white-space: nowrap; }
  .visibility-table input[type="checkbox"]{ width: auto; }

  .card-footer{
    font-size: 0.7rem;
    color: var(--faint);
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid var(--border);
  }

  .edit-actions{ display: flex; gap: 8px; margin-top: 12px; }

  .empty{ color: var(--faint); font-size: 0.9rem; text-align: center; padding: 24px 0; }

  /* Placeholder panels (org chart, branding, audit log) */
  .placeholder{
    text-align: center;
    color: var(--muted);
    padding: 56px 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 0.92rem;
  }
  .placeholder strong{ display: block; color: var(--ink); font-size: 1.05rem; margin-bottom: 8px; }

  /* Org chart */
  .chart-header-left{ display: flex; align-items: center; gap: 12px; }
  #orgchart-canvas{
    margin-bottom: 16px;
  }
  #orgchart-canvas.canvas-boxed{
    overflow: auto;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface);
    padding: 20px;
  }
  .org-line{ stroke: var(--border); stroke-width: 2; fill: none; }
  .org-node{ cursor: pointer; }
  .org-card-content{
    box-sizing: border-box;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
    padding: 10px 14px;
    font-family: inherit;
    transition: border-color 0.1s;
  }
  .org-node:hover .org-card-content{ border-color: var(--blue); }
  .org-node.selected .org-card-content{ border-color: var(--blue); border-width: 2px; }
  .org-card-text{ min-width: 0; overflow: hidden; }
  .org-card-text h2{ font-size: 0.88rem; margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .org-card-text .role, .org-card-text .org{ white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .org-card-content--vacant{ border-style: dashed; justify-content: center; }
  .org-vacant{ text-align: center; }
  .org-vacant-label{ font-size: 0.88rem; font-weight: 600; color: var(--ink); }
  .org-vacant-tag{ font-size: 0.74rem; color: var(--faint); font-style: italic; margin-top: 2px; }

  /* Location type badge - shown next to a location's label wherever it
     appears (list view, edit form, overview). */
  .loc-type-badge{
    display: inline-block;
    font-size: 0.66rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--muted);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1px 6px;
    margin-left: 6px;
    vertical-align: middle;
  }

  /* Location "Overview" - a grid of cards, one per top-level location, each
     containing every descendant nested inside it as an indented list (so a
     country card lists its cities, and any firms/offices under those). */
  .loc-overview-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    align-items: start;
  }
  .overview-card{
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface);
    padding: 14px 16px;
  }
  .overview-card > h2{ margin: 0; font-size: 1.05rem; }
  .overview-list{ list-style: none; margin: 8px 0 0; padding-left: 0; }
  .overview-list .overview-list{ margin: 6px 0 0 14px; padding-left: 12px; border-left: 2px solid var(--border); }
  .overview-list > li{ margin-bottom: 6px; }
  .overview-item-label{ font-weight: 600; font-size: 0.86rem; }
  .overview-summary{ font-size: 0.74rem; color: var(--muted); margin-top: 2px; }

  /* Printing: show only the org chart canvas, landscape, scaled to fit the
     page width - used for the Location "Overview" view. */
  @media print{
    @page{ size: landscape; }
    body *{ visibility: hidden; }
    #orgchart-canvas, #orgchart-canvas *{ visibility: visible; }
    #orgchart-canvas{ position: absolute; top: 0; left: 0; width: 100%; border: none; padding: 0; overflow: visible; }
    #orgchart-canvas svg{ width: 100%; height: auto; }
    .loc-overview-grid{ grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; }
    .overview-card{ break-inside: avoid; }
  }

  /* Contact modal */
  .modal-overlay{
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    z-index: 100;
  }
  .modal-overlay[hidden]{ display: none; }
  .modal{
    background: var(--surface);
    border-radius: 14px;
    border: 1px solid var(--border);
    padding: 24px;
    width: 100%;
    max-width: 520px;
    max-height: calc(100vh - 48px);
    overflow-y: auto;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
  }
  .modal .page-title{ margin-top: 0; }