*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    :root {
      --bg-base:    #0d0d1a;
      --bg-deep:    #1a1a2e;
      --bg-card:    #16213e;
      --bg-hover:   #1e2d4e;
      --bg-input:   #0f1d35;
      --border:     #2a3a5c;
      --accent:     #4ecca3;
      --accent-dim: #2a8a70;
      --danger:     #e94560;
      --warning:    #f0a500;
      --text:       #e0e6f0;
      --text-muted: #8899aa;
      --radius:     6px;
      --shadow:     0 2px 12px rgba(0,0,0,0.4);
    }

    html, body {
      height: 100%;
      background: var(--bg-base);
      color: var(--text);
      font-family: 'Segoe UI', system-ui, sans-serif;
      font-size: 14px;
      line-height: 1.5;
    }

    /* ── Layout ─────────────────────────────────────── */
    #app {
      display: grid;
      grid-template-columns: 220px 1fr;
      height: 100vh;
      overflow: hidden;
    }

    /* ── Sidebar ─────────────────────────────────────── */
    .sidebar {
      background: var(--bg-deep);
      border-right: 1px solid var(--border);
      display: flex;
      flex-direction: column;
      height: 100vh;
      overflow-y: auto;
      overflow-x: hidden;
      flex-shrink: 0;
    }

    .logo {
      padding: 20px 16px 14px;
      font-size: 17px;
      font-weight: 700;
      color: var(--accent);
      letter-spacing: 0.5px;
      border-bottom: 1px solid var(--border);
      flex-shrink: 0;
    }

    .logo span {
      display: block;
      color: var(--text-muted);
      font-weight: 400;
      font-size: 11px;
      margin-top: 3px;
    }

    nav {
      display: flex;
      flex-direction: column;
      gap: 2px;
      padding: 10px 8px;
      flex: 1;
    }

    nav button {
      width: 100%;
      text-align: left;
      background: none;
      border: 1px solid transparent;
      color: var(--text-muted);
      padding: 8px 12px;
      border-radius: var(--radius);
      cursor: pointer;
      font-size: 13px;
      font-weight: 500;
      transition: background 0.15s, color 0.15s;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    nav button:hover { background: var(--bg-card); color: var(--text); }
    nav button.active { background: var(--bg-card); color: var(--accent); border-color: var(--border); }

    .sidebar-footer {
      padding: 12px;
      border-top: 1px solid var(--border);
      display: flex;
      flex-direction: column;
      gap: 10px;
      flex-shrink: 0;
    }

    .header-status {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 12px;
      color: var(--text-muted);
    }

    .dot {
      width: 8px; height: 8px;
      border-radius: 50%;
      flex-shrink: 0;
    }
    .dot.green  { background: #4caf50; box-shadow: 0 0 6px #4caf50; }
    .dot.red    { background: var(--danger); box-shadow: 0 0 6px var(--danger); }
    .dot.yellow { background: var(--warning); }

    /* ── Content area ────────────────────────────────── */
    .content-wrap {
      display: flex;
      flex-direction: column;
      overflow: hidden;
      min-width: 0;
    }

    .mobile-header {
      display: none;
      background: var(--bg-deep);
      border-bottom: 1px solid var(--border);
      padding: 0 16px;
      height: 48px;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .hamburger {
      background: none;
      border: none;
      color: var(--text);
      font-size: 20px;
      cursor: pointer;
      padding: 4px 8px;
      border-radius: var(--radius);
      line-height: 1;
    }
    .hamburger:hover { background: var(--bg-card); }

    .sidebar-backdrop {
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,0.5);
      z-index: 100;
    }

    main {
      overflow-y: auto;
      padding: 20px;
      flex: 1;
    }

    /* ── Responsive ──────────────────────────────────── */
    @media (max-width: 768px) {
      #app {
        grid-template-columns: 1fr;
      }
      .sidebar {
        position: fixed;
        left: -240px;
        top: 0;
        width: 220px;
        height: 100vh;
        z-index: 200;
        transition: left 0.25s ease;
        box-shadow: 4px 0 20px rgba(0,0,0,0.5);
      }
      .sidebar.sidebar-open { left: 0; }
      .mobile-header { display: flex; }
    }

    /* ── Cards ────────────────────────────────────────── */
    .card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 16px;
    }

    .card-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 14px;
    }

    .card-title {
      font-size: 15px;
      font-weight: 600;
      color: var(--text);
    }

    /* ── Buttons ──────────────────────────────────────── */
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 14px;
      border-radius: var(--radius);
      border: 1px solid transparent;
      cursor: pointer;
      font-size: 13px;
      font-weight: 500;
      transition: opacity 0.15s, background 0.15s;
    }
    .btn:disabled { opacity: 0.45; cursor: not-allowed; }

    .btn-primary  { background: var(--accent); color: #0d1a15; border-color: var(--accent); }
    .btn-primary:hover:not(:disabled) { opacity: 0.85; }

    .btn-outline  { background: transparent; color: var(--accent); border-color: var(--accent-dim); }
    .btn-outline:hover:not(:disabled) { background: rgba(78,204,163,0.08); }

    .btn-danger   { background: var(--danger); color: #fff; border-color: var(--danger); }
    .btn-danger:hover:not(:disabled) { opacity: 0.85; }

    .btn-ghost    { background: transparent; color: var(--text-muted); border-color: var(--border); }
    .btn-ghost:hover:not(:disabled) { background: var(--bg-hover); color: var(--text); }

    .btn-sm { padding: 4px 10px; font-size: 12px; }

    /* ── Badges ───────────────────────────────────────── */
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      padding: 2px 8px;
      border-radius: 20px;
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 0.3px;
    }
    .badge-green  { background: rgba(76,175,80,0.15); color: #4caf50; border: 1px solid rgba(76,175,80,0.3); }
    .badge-red    { background: rgba(233,69,96,0.15);  color: var(--danger); border: 1px solid rgba(233,69,96,0.3); }
    .badge-teal   { background: rgba(78,204,163,0.15); color: var(--accent); border: 1px solid rgba(78,204,163,0.3); }
    .badge-muted  { background: rgba(136,153,170,0.1); color: var(--text-muted); border: 1px solid var(--border); }
    .badge-purple { background: rgba(124,58,237,0.15); color: #a78bfa; border: 1px solid rgba(124,58,237,0.3); }
    .badge-orange { background: rgba(251,146,60,0.15); color: #fb923c; border: 1px solid rgba(251,146,60,0.3); }

    /* ── Login screen ─────────────────────────────── */
    .login-screen {
      position: fixed; inset: 0;
      background: var(--bg-base);
      display: flex; align-items: center; justify-content: center;
      z-index: 2000;
    }
    .login-box {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 36px 40px;
      width: 340px; max-width: 95vw;
    }
    .login-box h2 {
      text-align: center; margin-bottom: 6px;
      font-size: 18px; font-weight: 700; color: var(--accent);
    }
    .login-box .login-sub {
      text-align: center; color: var(--text-muted); font-size: 12px; margin-bottom: 24px;
    }
    .login-error {
      color: var(--danger); font-size: 12px; margin: 8px 0 0;
      padding: 6px 10px; background: rgba(233,69,96,0.1); border-radius: var(--radius);
    }
    /* ── Sidebar user info ────────────────────────── */
    .header-user {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .header-user .user-row {
      display: flex;
      align-items: center;
      gap: 6px;
      flex-wrap: wrap;
    }
    .header-user .username { font-size: 12px; color: var(--text-muted); }
    .btn-logout {
      background: transparent; border: 1px solid var(--border);
      color: var(--text-muted); padding: 4px 10px; border-radius: var(--radius);
      cursor: pointer; font-size: 11px; transition: all 0.15s;
      width: 100%; text-align: center;
    }
    .btn-logout:hover { border-color: var(--danger); color: var(--danger); }

    /* ── Inputs / Selects ─────────────────────────────── */
    input, select, textarea {
      background: var(--bg-input);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      color: var(--text);
      padding: 7px 10px;
      font-size: 13px;
      outline: none;
      transition: border-color 0.15s;
    }
    input:focus, select:focus { border-color: var(--accent); }
    input[type="range"] { padding: 4px 0; cursor: pointer; accent-color: var(--accent); }
    select option { background: var(--bg-deep); }

    /* ── Toggle switch ────────────────────────────────── */
    .toggle-wrap { display: flex; align-items: center; gap: 8px; }

    .toggle {
      position: relative;
      width: 36px; height: 20px;
      flex-shrink: 0;
    }
    .toggle input { opacity: 0; width: 0; height: 0; }
    .toggle-slider {
      position: absolute; inset: 0;
      background: var(--border);
      border-radius: 20px;
      cursor: pointer;
      transition: background 0.2s;
    }
    .toggle-slider::after {
      content: '';
      position: absolute;
      left: 3px; top: 3px;
      width: 14px; height: 14px;
      border-radius: 50%;
      background: var(--text-muted);
      transition: transform 0.2s, background 0.2s;
    }
    .toggle input:checked + .toggle-slider { background: var(--accent-dim); }
    .toggle input:checked + .toggle-slider::after {
      transform: translateX(16px);
      background: var(--accent);
    }

    /* ── Table ────────────────────────────────────────── */
    .table-wrap { overflow-x: auto; }

    table {
      width: 100%;
      border-collapse: collapse;
    }
    th {
      text-align: left;
      padding: 8px 12px;
      font-size: 11px;
      font-weight: 600;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.5px;
      border-bottom: 1px solid var(--border);
      white-space: nowrap;
    }
    td {
      padding: 10px 12px;
      border-bottom: 1px solid rgba(42,58,92,0.5);
      vertical-align: middle;
    }
    tr:last-child td { border-bottom: none; }
    tr:hover td { background: var(--bg-hover); }

    /* ── Device cards (Tab 1) ─────────────────────────── */
    .devices-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 14px;
    }

    .device-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 16px;
      cursor: pointer;
      transition: border-color 0.15s, background 0.15s;
    }
    .device-card:hover { border-color: var(--accent-dim); background: var(--bg-hover); }

    .device-card-header {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      margin-bottom: 10px;
    }

    .device-instance {
      font-size: 20px;
      font-weight: 700;
      color: var(--accent);
      line-height: 1;
    }

    .device-name {
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .device-meta {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* ── Toolbar row ──────────────────────────────────── */
    .toolbar {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
      margin-bottom: 16px;
    }
    .toolbar-spacer { flex: 1; }

    /* ── Energy flow diagram pipe animation ──────────── */
    .energy-pipe-anim {
      animation: pipeFlow 1.8s linear infinite;
    }
    @keyframes pipeFlow { to { stroke-dashoffset: -12; } }

    /* ── Spinner ──────────────────────────────────────── */
    @keyframes spin { to { transform: rotate(360deg); } }
    .spinner {
      width: 16px; height: 16px;
      border: 2px solid var(--border);
      border-top-color: var(--accent);
      border-radius: 50%;
      animation: spin 0.7s linear infinite;
      flex-shrink: 0;
    }
    .spinner-lg {
      width: 32px; height: 32px;
      border-width: 3px;
    }

    /* ── Toast ────────────────────────────────────────── */
    #toast-container {
      position: fixed;
      bottom: 24px; right: 24px;
      z-index: 9999;
      display: flex;
      flex-direction: column;
      gap: 8px;
      pointer-events: none;
    }

    .toast {
      display: flex;
      align-items: center;
      gap: 10px;
      background: var(--bg-deep);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 10px 16px;
      font-size: 13px;
      box-shadow: var(--shadow);
      animation: slideIn 0.2s ease-out;
      pointer-events: auto;
      max-width: 360px;
    }
    .toast.success { border-left: 3px solid var(--accent); }
    .toast.error   { border-left: 3px solid var(--danger); }
    .toast.info    { border-left: 3px solid var(--warning); }

    /* ── Write Modal ───────────────────────────────────── */
    .modal-backdrop {
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,0.55);
      z-index: 1000;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .modal-box {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 28px 32px;
      width: 360px;
      max-width: 95vw;
    }
    .modal-box h3 {
      margin: 0 0 18px;
      font-size: 15px;
      font-weight: 600;
      color: var(--fg);
    }
    .modal-row {
      display: flex;
      flex-direction: column;
      gap: 5px;
      margin-bottom: 14px;
    }
    .modal-row label {
      font-size: 12px;
      color: var(--fg-muted);
    }
    .modal-actions {
      display: flex;
      gap: 10px;
      margin-top: 20px;
      justify-content: flex-end;
    }

    @keyframes slideIn {
      from { transform: translateX(30px); opacity: 0; }
      to   { transform: translateX(0);    opacity: 1; }
    }

    /* ── Empty / Error states ─────────────────────────── */
    .empty-state {
      text-align: center;
      padding: 48px 20px;
      color: var(--text-muted);
    }
    .empty-state .empty-icon { font-size: 48px; margin-bottom: 12px; }
    .empty-state p { font-size: 14px; }

    /* ── Chart container ──────────────────────────────── */
    .chart-container {
      position: relative;
      height: 320px;
      margin-bottom: 20px;
    }

    /* ── Status grid (Tab 4) ──────────────────────────── */
    .stat-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
      gap: 12px;
      margin-bottom: 20px;
    }

    .stat-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 16px;
      text-align: center;
    }

    .stat-value {
      font-size: 32px;
      font-weight: 700;
      color: var(--accent);
      line-height: 1;
      margin-bottom: 6px;
    }

    .stat-label {
      font-size: 12px;
      color: var(--text-muted);
      font-weight: 500;
      text-transform: uppercase;
      letter-spacing: 0.4px;
    }

    /* ── Misc helpers ─────────────────────────────────── */
    .flex { display: flex; }
    .items-center { align-items: center; }
    .gap-2 { gap: 8px; }
    .gap-3 { gap: 12px; }
    .mb-2 { margin-bottom: 8px; }
    .mb-3 { margin-bottom: 12px; }
    .mb-4 { margin-bottom: 16px; }
    .text-muted { color: var(--text-muted); }
    .text-accent { color: var(--accent); }
    .text-danger { color: var(--danger); }
    .font-mono { font-family: 'Consolas', 'Courier New', monospace; }
    .text-sm { font-size: 12px; }
    .w-full { width: 100%; }
    .truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

    /* ── Scrollbar ────────────────────────────────────── */
    ::-webkit-scrollbar { width: 6px; height: 6px; }
    ::-webkit-scrollbar-track { background: var(--bg-base); }
    ::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
    ::-webkit-scrollbar-thumb:hover { background: #3a4f72; }

    /* ── Filter/search input ──────────────────────────── */
    .search-input { min-width: 200px; }

    /* ── Interval input inline ────────────────────────── */
    .interval-input {
      width: 70px;
      padding: 3px 6px;
      font-size: 12px;
    }

    /* ── Wissensbasis Markdown rendering ──────────────── */
    .wissensbasis-body { padding: 16px 20px; background: var(--bg-hover); border-radius: var(--radius); font-size: 13px; line-height: 1.7; }
    .wissensbasis-body h1 { font-size: 18px; font-weight: 700; color: var(--text); margin: 0 0 12px; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
    .wissensbasis-body h2 { font-size: 14px; font-weight: 700; color: var(--accent); margin: 18px 0 8px; }
    .wissensbasis-body h3 { font-size: 13px; font-weight: 600; color: var(--text); margin: 12px 0 6px; }
    .wissensbasis-body p  { margin: 6px 0; color: var(--text); }
    .wissensbasis-body ul, .wissensbasis-body ol { padding-left: 20px; margin: 6px 0; }
    .wissensbasis-body li { margin: 3px 0; color: var(--text); }
    .wissensbasis-body table { width: 100%; border-collapse: collapse; margin: 10px 0; font-size: 12px; }
    .wissensbasis-body th { background: rgba(78,204,163,0.1); color: var(--accent); text-align: left; padding: 6px 10px; border-bottom: 1px solid var(--border); font-weight: 600; }
    .wissensbasis-body td { padding: 5px 10px; border-bottom: 1px solid rgba(42,58,92,0.4); color: var(--text); }
    .wissensbasis-body tr:last-child td { border-bottom: none; }
    .wissensbasis-body code { background: rgba(255,255,255,0.06); padding: 1px 5px; border-radius: 3px; font-family: 'Consolas', monospace; font-size: 12px; }
    .wissensbasis-body del { color: var(--text-muted); }
    .wissensbasis-body strong { color: var(--text); font-weight: 600; }
    .wissensbasis-body .frontmatter-block { display: none; }

    /* ── Analysis tab (Tab 5) ─────────────────────────── */
    .analysis-stat-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-bottom: 16px;
    }

    .analysis-stat-card {
      background: var(--bg-deep);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 14px 16px;
      text-align: center;
    }

    .analysis-stat-value {
      font-size: 22px;
      font-weight: 700;
      color: var(--accent);
      font-family: 'Consolas', monospace;
      line-height: 1.2;
    }

    .analysis-stat-label {
      font-size: 11px;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.4px;
      margin-top: 4px;
    }

    .trend-direction-rising  { color: #4caf50; }
    .trend-direction-falling { color: var(--danger); }
    .trend-direction-stable  { color: var(--text-muted); }

    .anomaly-spike   { color: var(--warning); }
    .anomaly-outlier { color: var(--danger); }

    .corr-strong-pos { color: #4caf50; }
    .corr-strong-neg { color: var(--danger); }
    .corr-weak       { color: var(--text-muted); }

    .collapsible-header {
      cursor: pointer;
      user-select: none;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .collapsible-arrow { font-size: 11px; transition: transform 0.2s; }
    .collapsible-arrow.open { transform: rotate(90deg); }

    /* ── Markdown-Rendering der KI-Antworten ──────────── */
    .md-body { font-size: 13px; line-height: 1.65; color: var(--text); }
    .md-body > *:first-child { margin-top: 0; }
    .md-body > *:last-child  { margin-bottom: 0; }
    .md-body h1, .md-body h2, .md-body h3, .md-body h4 {
      font-size: 14px; font-weight: 700; margin: 14px 0 6px;
      color: var(--text); line-height: 1.3;
    }
    .md-body p { margin: 8px 0; }
    .md-body ul, .md-body ol { margin: 8px 0; padding-left: 20px; }
    .md-body li { margin: 3px 0; }
    .md-body code {
      font-family: 'Consolas', monospace; font-size: 12px;
      background: rgba(255,255,255,0.07); padding: 1px 5px; border-radius: 4px;
    }
    .md-body pre {
      background: var(--bg-deep); border: 1px solid var(--border);
      border-radius: var(--radius); padding: 10px 12px; overflow-x: auto; margin: 8px 0;
    }
    .md-body pre code { background: none; padding: 0; }
    .md-body strong { color: var(--text); font-weight: 700; }
    .md-body table { border-collapse: collapse; margin: 8px 0; font-size: 12px; }
    .md-body th, .md-body td { border: 1px solid var(--border); padding: 4px 8px; text-align: left; }
    .md-body blockquote {
      border-left: 3px solid var(--accent); margin: 8px 0; padding: 2px 12px;
      color: var(--text-muted);
    }

    /* ── Befund-Übersicht (Schweregrade) ──────────────── */
    .finding-row {
      display: flex; align-items: flex-start; gap: 10px;
      padding: 8px 12px; border-bottom: 1px solid var(--border); font-size: 13px;
    }
    .finding-row:last-child { border-bottom: none; }
    .finding-badge {
      flex-shrink: 0; font-size: 14px; line-height: 1.4; width: 18px; text-align: center;
    }
    .sev-chip {
      font-size: 12px; padding: 3px 10px; border-radius: 12px; cursor: pointer;
      border: 1px solid var(--border); background: transparent; color: var(--text-muted);
      user-select: none;
    }
    .sev-chip.active { color: var(--text); border-color: var(--accent); background: rgba(78,204,163,0.12); }

    /* ── Energie tab ──────────────────────────────────── */
    .energy-meter-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
      gap: 14px;
      margin-bottom: 20px;
    }
    .energy-meter-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 16px;
      cursor: pointer;
      transition: border-color .15s;
    }
    .energy-meter-card:hover { border-color: var(--accent-dim); }
    .energy-meter-card.active { border-color: var(--accent); }
    .energy-meter-icon { font-size: 28px; line-height: 1; margin-bottom: 6px; }
    .energy-meter-value { font-size: 22px; font-weight: 700; font-family: 'Consolas', monospace; }
    .energy-period-tabs {
      display: flex; gap: 4px;
      background: var(--bg-deep); border: 1px solid var(--border);
      border-radius: var(--radius); padding: 4px;
      width: fit-content; margin-bottom: 16px;
    }
    .energy-period-tab {
      padding: 5px 14px; border-radius: calc(var(--radius) - 2px);
      font-size: 12px; font-weight: 600; cursor: pointer;
      border: none; background: transparent; color: var(--text-muted); transition: all .15s;
    }
    .energy-period-tab.active { background: var(--accent); color: #0d0d1a; }
    .energy-chart-wrap {
      background: var(--bg-deep); border: 1px solid var(--border);
      border-radius: var(--radius); padding: 16px; margin-bottom: 14px; position: relative;
    }
    .energy-kpi-row {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 16px;
    }
    @media (max-width: 700px) { .energy-kpi-row { grid-template-columns: 1fr 1fr; } }
    .energy-kpi { background: var(--bg-deep); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; }
    .energy-kpi-val { font-size: 20px; font-weight: 700; font-family: monospace; }
    .energy-delta-pos { color: #e74c3c; }
    .energy-delta-neg { color: #4caf50; }
    .manual-reading-panel { background: var(--bg-deep); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin-top: 14px; }
    .energy-analytics-card { background: var(--bg-card, var(--bg-deep)); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; }

    /* ── Energie-Heatmap (Tage × Monate) ─────────────────────── */
    .energy-heatmap { display: flex; flex-direction: column; gap: 2px; }
    .hm-row { display: flex; gap: 2px; align-items: center; }
    .hm-daylabel {
      width: 22px; flex: none; text-align: right; padding-right: 4px;
      font-size: 9px; color: var(--text-muted); font-family: monospace;
    }
    .hm-head .hm-daylabel { height: auto; }
    .hm-mhead { flex: 1; text-align: center; font-size: 10px; font-weight: 600; color: var(--text-muted); }
    .hm-cell {
      flex: 1; height: 13px; min-width: 8px; border-radius: 2px;
      border: 1px solid transparent; cursor: default; transition: outline .1s;
    }
    .hm-cell:hover { outline: 1px solid var(--text); outline-offset: 0; }
    .hm-legend { display: inline-block; width: 13px; height: 13px; border-radius: 2px; }

    /* ── Liegenschaften tab ──────────────────────────────────── */
    #liegenschaft-map {
      height: 420px;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      background: var(--bg-card);
    }
    .lg-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 16px;
      margin-bottom: 12px;
    }
    .lg-card-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      margin-bottom: 8px;
    }
    .lg-coords {
      font-size: 11px;
      color: var(--text-muted);
      font-family: monospace;
      margin-top: 4px;
    }

    /* ── Schemas tab ──────────────────────────────────── */
    .schemas-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 14px;
      margin-bottom: 20px;
    }

    .schema-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 16px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .schema-card:hover { border-color: var(--accent-dim); }

    .schema-card-title {
      font-size: 15px;
      font-weight: 600;
    }

    .schema-svg-wrap {
      background: #0d0d1a;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      margin-bottom: 16px;
    }

    .schema-editor-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 10px;
    }

    .slot-row {
      background: var(--bg-deep);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 12px 14px;
    }

    .slot-row.slot-required {
      border-left: 3px solid var(--accent-dim);
    }

    .slot-fields {
      display: grid;
      grid-template-columns: 1fr 1fr 80px 80px;
      gap: 8px;
      margin-top: 10px;
      align-items: end;
    }

    @media (max-width: 700px) {
      .slot-fields { grid-template-columns: 1fr 1fr; }
    }

    /* ── Dashboard Kacheln ───────────────────────────── */
    .dash-tile-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
      gap: 14px;
      margin-bottom: 20px;
    }
    .dash-tile {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 14px 14px 10px;
      position: relative;
      overflow: hidden;
      cursor: default;
    }
    .dash-tile-remove {
      position: absolute;
      top: 6px;
      right: 8px;
      background: none;
      border: none;
      color: var(--text-muted);
      font-size: 12px;
      cursor: pointer;
      opacity: 0;
      transition: opacity .15s;
      padding: 2px 4px;
    }
    .dash-tile:hover .dash-tile-remove { opacity: 1; }
    .dash-tile-label {
      font-size: 11px;
      color: var(--text-muted);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      margin-bottom: 4px;
      padding-right: 18px;
    }
    .dash-tile-value {
      font-size: 28px;
      font-weight: 700;
      color: var(--accent);
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .dash-tile-unit {
      font-size: 14px;
      font-weight: 400;
      color: var(--text-muted);
      margin-left: 3px;
    }
    .dash-tile-chart {
      width: 100%;
      height: 48px;
    }
    .dash-tile-chart svg {
      width: 100%;
      height: 100%;
    }

    /* ── Dashboard tab ────────────────────────────────── */
    .dashboard-kpi-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 14px;
      margin-bottom: 20px;
    }
    @media (max-width: 960px) {
      .dashboard-kpi-grid { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 600px) {
      .dashboard-kpi-grid { grid-template-columns: repeat(2, 1fr); }
    }

    .kpi-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 22px 16px 18px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .kpi-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 3px;
    }
    .kpi-card.kpi-green::before  { background: #4caf50; }
    .kpi-card.kpi-red::before    { background: var(--danger); }
    .kpi-card.kpi-teal::before   { background: var(--accent); }
    .kpi-card.kpi-warn::before   { background: var(--warning); }
    .kpi-card.kpi-muted::before  { background: var(--border); }

    .kpi-value {
      font-size: 38px;
      font-weight: 700;
      line-height: 1;
      margin-bottom: 8px;
      font-family: 'Consolas', monospace;
    }
    .kpi-label {
      font-size: 11px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      color: var(--text-muted);
    }

    .dashboard-two-col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    @media (max-width: 800px) {
      .dashboard-two-col { grid-template-columns: 1fr; }
    }

    /* ── Alerts tab (Tab 6) ───────────────────────────── */
    .alert-active       { background: rgba(233,69,96,0.07); }
    .alert-acknowledged { background: rgba(240,165,0,0.07); }
    .alert-resolved     { background: transparent; }

    .badge-orange { background: rgba(240,165,0,0.15); color: var(--warning); border: 1px solid rgba(240,165,0,0.3); }
    .badge-gray   { background: rgba(136,153,170,0.1); color: var(--text-muted); border: 1px solid var(--border); }

    .rule-form {
      background: var(--bg-deep);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 16px;
      margin-top: 16px;
    }

    .rule-form-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      gap: 12px;
      align-items: end;
    }

    /* ── Schema: Rohrströmungsanimation ── */
    @keyframes flow-vl { from { stroke-dashoffset: 30; } to { stroke-dashoffset: 0; } }
    @keyframes flow-rl { from { stroke-dashoffset: 0; }  to { stroke-dashoffset: 30; } }
    .schema-flow-vl {
      stroke-dasharray: 12 6;
      animation: flow-vl 0.9s linear infinite;
    }
    .schema-flow-rl {
      stroke-dasharray: 12 6;
      animation: flow-rl 0.9s linear infinite;
    }
    /* Schema: Störmeldung Puls */
    @keyframes fault-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }
    .schema-fault-pulse {
      animation: fault-pulse 1s ease-in-out infinite;
    }

    /* ── Schedule Grid ──────────────────────────── */
    .sched-outer {
      display: grid;
      grid-template-columns: 260px 1fr;
      gap: 16px;
      padding: 16px;
      height: calc(100vh - 60px);
      overflow: hidden;
    }
    .sched-list { overflow-y: auto; }
    .sched-detail { overflow-y: auto; display: flex; flex-direction: column; gap: 12px; }

    .sched-grid-wrap {
      display: grid;
      grid-template-columns: 38px repeat(7, 1fr);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
    }
    .sched-col-hdr {
      background: var(--bg-deep);
      padding: 5px 4px;
      text-align: center;
      font-size: 11px;
      font-weight: 600;
      color: var(--accent);
      border-bottom: 1px solid var(--border);
    }
    .sched-axis {
      position: relative;
      height: 480px;
      background: var(--bg-deep);
      border-right: 1px solid var(--border);
    }
    .sched-hour-lbl {
      position: absolute;
      right: 4px;
      font-size: 9px;
      color: var(--text-muted);
      transform: translateY(-50%);
      white-space: nowrap;
    }
    .sched-day-col {
      position: relative;
      height: 480px;
      background: var(--bg-input);
      border-left: 1px solid var(--border);
    }
    .sched-day-col:hover { background: #0f1e38; }
    .sched-hour-line {
      position: absolute;
      left: 0; right: 0;
      border-top: 1px solid rgba(42,58,92,0.6);
      pointer-events: none;
    }
    .sched-hour-line.major { border-color: rgba(42,58,92,1); }
    .sched-block {
      position: absolute;
      left: 2px; right: 2px;
      border-radius: 3px;
      font-size: 9px;
      padding: 1px 3px;
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
      min-height: 12px;
      color: rgba(255,255,255,0.9);
      cursor: default;
      box-shadow: 0 1px 3px rgba(0,0,0,0.4);
      display: flex;
      align-items: center;
      gap: 2px;
    }
    .sched-block.editable { cursor: pointer; }
    .sched-block.editable:hover { filter: brightness(1.2); }
    .sched-block-del {
      margin-left: auto;
      background: none;
      border: none;
      color: rgba(255,255,255,0.7);
      cursor: pointer;
      font-size: 11px;
      line-height: 1;
      padding: 0 2px;
      flex-shrink: 0;
    }
    .sched-block-del:hover { color: var(--danger); }
    .sched-add-btn {
      position: absolute;
      bottom: 4px;
      left: 50%;
      transform: translateX(-50%);
      width: 20px; height: 20px;
      background: var(--accent-dim);
      color: var(--accent);
      border: 1px solid var(--accent-dim);
      border-radius: 50%;
      font-size: 15px;
      line-height: 1;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0.6;
      transition: opacity 0.15s;
      z-index: 2;
    }
    .sched-add-btn:hover { opacity: 1; background: var(--accent); color: var(--bg-deep); }

    .sched-exc-table { width: 100%; border-collapse: collapse; font-size: 12px; }
    .sched-exc-table th { text-align: left; padding: 6px 8px; color: var(--text-muted); border-bottom: 1px solid var(--border); font-weight: 500; }
    .sched-exc-table td { padding: 5px 8px; border-bottom: 1px solid rgba(42,58,92,0.4); vertical-align: top; }
    .sched-exc-table tr:last-child td { border-bottom: none; }

    [x-cloak] { display: none !important; }

    .tab-btn {
      background: none;
      border: none;
      border-bottom: 2px solid transparent;
      color: var(--text-muted);
      padding: 7px 14px;
      cursor: pointer;
      font-size: 13px;
      font-weight: 500;
      margin-bottom: -1px;
      transition: color 0.15s, border-color 0.15s;
    }
    .tab-btn:hover { color: var(--text); }
    .tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }

    /* ── Global Liegenschaft Picker ── */
    .sidebar-lg-picker { padding: 8px 12px; border-top: 1px solid var(--border); }
    .sidebar-lg-label { font-size: 10px; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; color: var(--text-muted); display: block; margin-bottom: 4px; }
    .sidebar-lg-select { width: 100%; background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 5px 8px; font-size: 12px; cursor: pointer; }
    .sidebar-lg-select:focus { outline: none; border-color: var(--accent); }

    /* ── Liegenschaft Breadcrumb bar ── */
    .lg-breadcrumb { display: flex; align-items: center; gap: 6px; padding: 5px 20px; background: var(--bg-card); border-bottom: 1px solid var(--border); font-size: 12px; color: var(--text-muted); flex-shrink: 0; }
    .lg-breadcrumb-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
    .lg-breadcrumb-name { font-weight: 600; color: var(--text); }
    .lg-breadcrumb-clear { margin-left: auto; background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 14px; padding: 0 4px; border-radius: 4px; line-height: 1; }
    .lg-breadcrumb-clear:hover { color: var(--text); background: var(--bg); }

    /* ── LG color dot in dropdowns/cards ── */
    .lg-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 4px; flex-shrink: 0; vertical-align: middle; }