:root {
      --brand-gray: #635E5E;
      --brand-yellow: #F0D629;
      --brand-white: #FEFEFE;
      --bg-primary: #FEFEFE;
      --bg-secondary: #f5f5f5;
      --bg-tertiary: #e8e8e8;
      --text-primary: #212529;
      --text-secondary: #635E5E;
      --text-muted: #6c757d;
      --border-color: #dee2e6;
      --shadow-color: rgba(0,0,0,0.1);
      --primary-color: #635E5E;
      --primary-hover: #4a4646;
      --accent-color: #F0D629;
      --success-color: #28a745;
      --danger-color: #dc3545;
      --info-color: #17a2b8;
      --header-height: 70px;
    }
    [data-theme="dark"] {
      --bg-primary: #1a1a1a;
      --bg-secondary: #2d2d2d;
      --bg-tertiary: #3a3a3a;
      --text-primary: #FEFEFE;
      --text-secondary: #e0e0e0;
      --text-muted: #999999;
      --border-color: #444444;
      --shadow-color: rgba(0,0,0,0.3);
    }
    * { margin:0; padding:0; box-sizing:border-box; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
      color: var(--text-primary);
      background: var(--bg-secondary);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      transition: background-color 0.3s ease, color 0.3s ease;
    }
    /* Header */
    .app-header {
      background: var(--bg-primary);
      border-bottom: 3px solid var(--brand-yellow);
      height: var(--header-height);
      position: sticky; top:0; z-index:1000;
      box-shadow: 0 2px 8px var(--shadow-color);
    }
    .header-container {
      padding: 0 24px;
      height: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .header-left { display:flex; align-items:center; gap:16px; }
    .logo-mark {
      width: 45px; height: 45px;
      border-radius: 8px;
      object-fit: contain;
      flex-shrink: 0;
    }
    .page-title { font-size:1.4rem; font-weight:600; color:var(--text-primary); }
    .page-subtitle { font-size:0.8rem; color:var(--text-muted); margin-top:1px; }
    .header-right { display:flex; align-items:center; gap:12px; }
    .user-info {
      display:flex; align-items:center; gap:10px;
      padding: 6px 14px;
      background: var(--bg-secondary);
      border-radius: 25px;
    }
    .user-info i { font-size:1.4rem; color:var(--brand-yellow); }
    .user-name { font-weight:600; font-size:0.9rem; }
    .user-role { font-size:0.72rem; color:var(--text-muted); }
    .theme-toggle {
      width:38px; height:38px; border-radius:50%;
      background:transparent; border:none; cursor:pointer;
      color:var(--text-primary);
      display:flex; align-items:center; justify-content:center;
      transition: all 0.3s ease;
    }
    .theme-toggle:hover { background:var(--brand-yellow); color:var(--brand-gray); }
    /* Main: full height, padding intorno come configmanager */
    .app-main { flex:1; overflow:hidden; display:flex; flex-direction:column; padding: 20px 24px; }
    /* Loading / Auth screens */
    .center-screen {
      display:flex; flex-direction:column; align-items:center; justify-content:center;
      min-height: calc(100vh - var(--header-height) - 60px);
      gap: 20px; text-align: center;
    }
    .spinner {
      border: 3px solid var(--bg-tertiary);
      border-top: 3px solid var(--brand-yellow);
      border-radius: 50%; width:44px; height:44px;
      animation: spin 0.9s linear infinite;
    }
    @keyframes spin { to { transform: rotate(360deg); } }
    .btn {
      padding: 10px 20px; border:none; border-radius:6px;
      font-size:0.95rem; font-weight:600; cursor:pointer;
      display:inline-flex; align-items:center; gap:8px;
      transition: all 0.25s ease; text-decoration:none;
    }
    .btn-primary { background:var(--primary-color); color:#fff; }
    .btn-primary:hover { background:var(--primary-hover); }
    .btn-accent { background:var(--brand-yellow); color:var(--brand-gray); }
    .btn-accent:hover { background:#d9bf24; }
    .btn-sm { padding:6px 12px; font-size:0.82rem; }
    /* Section header */
    .section-header { margin-bottom:20px; }
    .section-header h2 { font-size:1.15rem; font-weight:600; color:var(--text-primary); }
    .section-header p { color:var(--text-muted); font-size:0.88rem; margin-top:4px; }
    /* Domain cards grid */
    .domains-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
      gap: 18px;
    }
    .badge {
      padding: 2px 8px; border-radius:12px; font-size:0.72rem; font-weight:600;
    }
    .badge-read { background:#d1ecf1; color:#0c5460; }
    .badge-write { background:#d4edda; color:#155724; }
    .badge-locked { background:var(--bg-tertiary); color:var(--text-muted); }
    [data-theme="dark"] .badge-read { background:rgba(23,162,184,0.2); color:#5dceeb; }
    [data-theme="dark"] .badge-write { background:rgba(40,167,69,0.2); color:#6bde8a; }
    /* Tool list */
    .tools-list { display:flex; flex-direction:column; gap:2px; }
    .tool-item {
      border-radius:6px;
      border: 1px solid var(--border-color);
      margin-bottom: 6px;
      overflow: hidden;
    }
    .tool-summary {
      padding: 10px 14px;
      display:flex; align-items:center; gap:10px;
      cursor:pointer; user-select:none;
      background: var(--bg-primary);
      transition: background 0.2s ease;
    }
    .tool-summary:hover { background: var(--bg-secondary); }
    .tool-name { font-weight:600; font-size:0.88rem; font-family: 'Courier New', monospace; flex:1; }
    .tool-badge-rw {
      font-size:0.7rem; padding:2px 7px; border-radius:10px; font-weight:600; flex-shrink:0;
    }
    .tool-badge-write { background:#d4edda; color:#155724; }
    .tool-badge-read  { background:#d1ecf1; color:#0c5460; }
    [data-theme="dark"] .tool-badge-write { background:rgba(40,167,69,0.2); color:#6bde8a; }
    [data-theme="dark"] .tool-badge-read  { background:rgba(23,162,184,0.2); color:#5dceeb; }
    .tool-chevron { color:var(--text-muted); font-size:0.75rem; transition: transform 0.2s; }
    .tool-detail {
      display:none; padding: 10px 14px 14px;
      background: var(--bg-secondary);
      border-top: 1px solid var(--border-color);
    }
    .tool-detail.open { display:block; }
    .tool-description { font-size:0.85rem; color:var(--text-secondary); margin-bottom:10px; line-height:1.5; }
    .params-title { font-size:0.78rem; font-weight:700; color:var(--text-muted); text-transform:uppercase; letter-spacing:.5px; margin-bottom:6px; }
    .param-list { display:flex; flex-direction:column; gap:4px; }
    .param-row { display:flex; align-items:baseline; gap:8px; font-size:0.82rem; }
    .param-name { font-family:'Courier New',monospace; font-weight:600; color:var(--brand-gray); flex-shrink:0; }
    [data-theme="dark"] .param-name { color:var(--brand-yellow); }
    .param-type { color:var(--info-color); font-size:0.75rem; flex-shrink:0; }
    .param-required { color:var(--danger-color); font-size:0.72rem; flex-shrink:0; }
    .param-desc { color:var(--text-muted); }
    /* Snippet */
    .snippet-tabs { display:flex; gap:0; }
    .snippet-tab {
      padding:6px 14px; border:1px solid var(--border-color); background:var(--bg-secondary);
      cursor:pointer; font-size:0.82rem; font-weight:600; color:var(--text-muted);
      transition: all 0.2s;
    }
    .snippet-tab:first-child { border-radius:6px 0 0 6px; }
    .snippet-tab:last-child  { border-radius:0 6px 6px 0; border-left:none; }
    .snippet-tab.active { background:var(--brand-gray); color:#fff; border-color:var(--brand-gray); }
    .snippet-block { display:none; }
    .snippet-block.active { display:block; }
    .snippet-domain { display:flex; flex-direction:column; gap:14px; }
    .snippet-title { font-size:0.78rem; font-weight:700; color:var(--text-muted); text-transform:uppercase; letter-spacing:.5px; margin-bottom:4px; }
    .code-wrap { position:relative; }
    .code-block {
      background: var(--bg-tertiary);
      border-radius:6px; padding:12px 14px;
      font-family:'Courier New',monospace; font-size:0.78rem;
      color:var(--text-primary); white-space:pre; overflow-x:auto;
      line-height:1.6;
    }
    .copy-btn {
      position:absolute; top:6px; right:6px;
      padding:3px 8px; font-size:0.72rem; border-radius:4px;
      background:var(--bg-primary); border:1px solid var(--border-color);
      cursor:pointer; color:var(--text-muted);
      display:flex; align-items:center; gap:4px;
      transition: all 0.2s;
    }
    .copy-btn:hover { background:var(--brand-yellow); color:var(--brand-gray); border-color:var(--brand-yellow); }
    /* Loading */
    .loading-tools { padding:30px; text-align:center; color:var(--text-muted); }
    /* Footer */
    .app-footer {
      background: var(--bg-primary);
      border-top:1px solid var(--border-color);
      padding: 0 24px;
      height:32px; flex-shrink:0;
      display:flex; align-items:center; justify-content:space-between;
      font-size:0.72rem; color:var(--text-muted);
    }
    /* -----------------------------------------------------------------------
       MCP Manager — layout sidebar + main (stile configmanager)
    ----------------------------------------------------------------------- */
    .mcp-manager {
      display: grid;
      grid-template-columns: 300px 1fr;
      gap: 20px;
      height: calc(100vh - var(--header-height) - 32px - 40px);
    }
    /* Sidebar */
    .mcp-sidebar {
      background: var(--bg-primary);
      border-radius: 8px;
      box-shadow: 0 2px 4px var(--shadow-color);
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }
    .sidebar-header {
      height: 60px;
      padding: 0 16px;
      border-bottom: 3px solid var(--brand-yellow);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-primary);
      flex-shrink: 0;
    }
    .access-badge {
      font-size: 0.72rem; font-weight: 600;
      padding: 2px 8px; border-radius: 10px;
      background: var(--bg-secondary); color: var(--text-muted);
    }
    .domain-list {
      flex: 1;
      overflow-y: auto;
      padding: 8px;
    }
    .domain-item {
      padding: 10px 12px;
      margin-bottom: 4px;
      border-radius: 6px;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 10px;
      border: 1px solid transparent;
      transition: all 0.2s;
      color: var(--text-primary);
    }
    .domain-item:hover { background: var(--bg-secondary); border-color: var(--border-color); }
    .domain-item.active {
      background: var(--primary-color); color: #fff;
      border-color: var(--brand-yellow);
    }
    .domain-item.locked { opacity: 0.45; cursor: default; }
    .domain-item .item-icon { font-size: 0.95rem; width: 18px; text-align: center; flex-shrink: 0; }
    .domain-item.active .item-icon { color: var(--brand-yellow); }
    .domain-item .item-name { font-weight: 600; font-size: 0.88rem; flex: 1; }
    .domain-item .item-badges { display: flex; gap: 4px; margin-left: auto; }
    .sidebar-footer {
      padding: 10px 14px;
      border-top: 1px solid var(--border-color);
      font-size: 0.72rem;
      color: var(--text-muted);
      flex-shrink: 0;
    }
    /* Right main */
    .mcp-main {
      display: flex;
      flex-direction: column;
      overflow: hidden;
      background: var(--bg-primary);
      border-radius: 8px;
      box-shadow: 0 2px 4px var(--shadow-color);
    }
    /* Welcome placeholder */
    .welcome-screen {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 14px;
      padding: 40px;
      text-align: center;
    }
    /* Detail: fills full height as flex column */
    #screenDetail {
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    /* Editor-style header */
    .editor-header {
      background: var(--bg-primary);
      border-bottom: 1px solid var(--border-color);
      padding: 0 20px;
      display: flex;
      align-items: center;
      gap: 14px;
      height: 60px;
      flex-shrink: 0;
    }
    /* Tabs inside editor header */
    .editor-tabs { display: flex; margin-left: auto; }
    .editor-tab {
      padding: 0 18px;
      height: 60px;
      border: none;
      border-bottom: 3px solid transparent;
      background: transparent;
      cursor: pointer;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 6px;
      transition: all 0.2s;
    }
    .editor-tab:hover { color: var(--text-primary); }
    .editor-tab.active { color: var(--primary-color); border-bottom-color: var(--brand-yellow); }
    /* Tab content panels */
    .tab-content {
      display: none;
      flex: 1;
      overflow: hidden;
      flex-direction: column;
    }
    .tab-content.active { display: flex; }
    /* Comandi tab: area scrollabile + footer fisso */
    #tabComandi { padding: 0; }
    #tabComandi .tab-scroll { flex:1; overflow-y:auto; padding: 20px 24px 12px; }
    #tabComandi .tab-footer {
      padding: 10px 24px;
      border-top: 1px solid var(--border-color);
      font-size: 0.72rem;
      color: var(--text-muted);
      flex-shrink: 0;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    /* Config tab: normale scroll */
    #tabConfig { overflow-y: auto; padding: 20px 24px; }
    /* Config tab layout: two snippet cards side by side */
    .config-snippets-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      margin-top: 4px;
    }
    .config-snippet-card {
      background: var(--bg-primary);
      border-radius: 8px;
      border: 1px solid var(--border-color);
      overflow: hidden;
    }
    .config-snippet-card-header {
      padding: 10px 14px;
      border-bottom: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-primary);
    }
    .config-snippet-card-header i { color: var(--brand-yellow); }
    .config-snippet-card-body { padding: 14px; }
    @media (max-width: 900px) {
      .config-snippets-grid { grid-template-columns: 1fr; }
    }
    /* Responsive */
    @media (max-width: 760px) {
      .mcp-manager { grid-template-columns: 1fr; height: auto; gap: 12px; }
      .mcp-sidebar { height: 240px; border-radius: 8px; }
      #screenDetail { height: auto; }
    }